flash_v2: host/libcdl/expr.cxx annotate

annotate host/libcdl/expr.cxx @ 159:511f4dc167f6

Merge from eCos master repository on 2001-05-18-01:30:05-BST

author	jlarmour
date	Fri, 18 May 2001 06:32:28 +0000
parents	6ed91473a1cd
children	0d2b193a635f

rev	line source
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1 //{{{ Banner
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3 //============================================================================
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	4 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	5 // expr.cxx
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	6 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	7 // Implementation of the various CDL expression classes.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	8 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	9 //============================================================================
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	10 //####COPYRIGHTBEGIN####
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	11 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	12 // ----------------------------------------------------------------------------
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	13 // Copyright (C) 1999, 2000, 2001 Red Hat, Inc.
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	14 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	15 // This file is part of the eCos host tools.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	16 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	17 // This program is free software; you can redistribute it and/or modify it
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	18 // under the terms of the GNU General Public License as published by the Free
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	19 // Software Foundation; either version 2 of the License, or (at your option)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	20 // any later version.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	21 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	22 // This program is distributed in the hope that it will be useful, but WITHOUT
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	23 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	24 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	25 // more details.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	26 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	27 // You should have received a copy of the GNU General Public License along with
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	28 // this program; if not, write to the Free Software Foundation, Inc.,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	29 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	30 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	31 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	32 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	33 //####COPYRIGHTEND####
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	34 //============================================================================
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	35 //#####DESCRIPTIONBEGIN####
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	36 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	37 // Author(s): bartv
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	38 // Contact(s): bartv
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	39 // Date: 1999/02/02
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	40 // Version: 0.02
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	41 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	42 //####DESCRIPTIONEND####
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	43 //============================================================================
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	44
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	45 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	46 //{{{ #include's
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	47
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	48 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	49 #include "cdlconfig.h"
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	50
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	51 // Get the infrastructure types, assertions, tracing and similar
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	52 // facilities.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	53 #include <cyg/infra/cyg_ass.h>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	54 #include <cyg/infra/cyg_trac.h>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	55
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	56 // <cdlcore.hxx> defines everything implemented in this module.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	57 // It implicitly supplies <string>, <vector> and <map> because
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	58 // the class definitions rely on these headers.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	59 #include <cdlcore.hxx>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	60
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	61 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	62
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	63 //{{{ Statics
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	64
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	65 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	66 CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlEvalContext);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	67 CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlExpressionBody);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	68 CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlListExpressionBody);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	69 CYGDBG_DEFINE_MEMLEAK_COUNTER(CdlGoalExpressionBody);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	70
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	71 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	72 //{{{ CdlEvalContext
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	73
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	74 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	75 // A utility class to keep track of the context in which expression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	76 // evaluation is happening.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	77
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	78 CdlEvalContext::CdlEvalContext(CdlTransaction transaction_arg, CdlNode node_arg, CdlProperty property_arg,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	79 CdlToplevel toplevel_arg)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	80 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	81 CYG_REPORT_FUNCNAME("CdlEvalContext::constructor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	82 CYG_REPORT_FUNCARG4XV(this, transaction_arg, node_arg, property_arg);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	83
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	84 transaction = transaction_arg;
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	85
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	86 if ((0 == property_arg) && (0 != transaction)) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	87 CdlConflict conflict = transaction->get_conflict();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	88 if (0 != conflict) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	89 property_arg = conflict->get_property();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	90 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	91 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	92 property = property_arg;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	93
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	94 if ((0 == node_arg) && (0 != transaction)) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	95 CdlConflict conflict = transaction->get_conflict();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	96 if (0 != conflict) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	97 node_arg = conflict->get_node();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	98 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	99 }
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	100 node = node_arg;
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	101
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	102 if (0 == toplevel_arg) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	103 if (0 != transaction) {
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	104 toplevel_arg = transaction->get_toplevel();
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	105 } else if (0 != node) {
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	106 toplevel_arg = node->get_toplevel();
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	107 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	108 }
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	109 toplevel = toplevel_arg;
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	110
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	111 cdlevalcontext_cookie = CdlEvalContext_Magic;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	112 CYGDBG_MEMLEAK_CONSTRUCTOR();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	113
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	114 CYG_POSTCONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	115 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	116 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	117
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	118 CdlEvalContext::~CdlEvalContext()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	119 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	120 CYG_REPORT_FUNCNAME("CdlEvalContext::destructor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	121 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	122
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	123 cdlevalcontext_cookie = CdlEvalContext_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	124 transaction = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	125 node = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	126 property = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	127 toplevel = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	128 CYGDBG_MEMLEAK_DESTRUCTOR();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	129
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	130 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	131 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	132
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	133 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	134 CdlEvalContext::check_this(cyg_assert_class_zeal zeal) const
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	135 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	136 if (CdlEvalContext_Magic != cdlevalcontext_cookie) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	137 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	138 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	139 CYGDBG_MEMLEAK_CHECKTHIS();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	140
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	141 if ((0 != transaction) && !transaction->check_this(zeal)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	142 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	143 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	144 if ((0 != toplevel) && !toplevel->check_this(zeal)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	145 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	146 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	147 if ((0 != node) && !node->check_this(zeal)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	148 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	149 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	150 if ((0 != property) && !property->check_this(zeal)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	151 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	152 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	153 return true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	154 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	155
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	156 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	157 //{{{ Expression parsing
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	158
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	159 //{{{ Description
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	160
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	161 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	162 // There are a number of different entry points related to expression parsing,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	163 // largely to support list and goal expressions. All of these eventually
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	164 // end up calling the function
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	165 // continue_parse(expr, data, index, token, token_end)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	166 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	167 // The expr argument holds an existing expression object that needs to be
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	168 // updated. If token is Invalid then we are at the start of an expression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	169 // (but not necessarily at the start of the string).
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	170 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	171 // The data string holds all of the expression that should be parsed.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	172 // It is formed by concatenating all non-option arguments to the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	173 // appropriate property command, with spaces between them.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	174 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	175 // index is an input/output variable. On input it indicates where in
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	176 // the string parsing should continue. On output it indicates the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	177 // location within the string where the terminating token began.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	178 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	179 // token is an input/output variable. On input it can have the values
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	180 // Invalid or And. The former means that we are parsing a completely
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	181 // new expression. The latter is used for goal expressions: it is
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	182 // necessary to parse a new expression and then combine it with the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	183 // existing one.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	184 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	185 // token_end is an output variable. It indicates the location within
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	186 // the string where the terminating token ended. This is useful for
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	187 // e.g. ranges in a list expression.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	188 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	189 // A conventional recursive descent parser is used.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	190
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	191 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	192 //{{{ Tokenization
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	193
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	194 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	195 // Tokenization.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	196
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	197 //{{{ token enum
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	198
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	199 // A separate token enum is necessary, rather than re-using the CdlExprOp
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	200 // enum. Some tokens may correspond to several operators, and some tokens
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	201 // such as close-bracket do not correspond directly to an operator at all.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	202 enum token {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	203 T_Invalid = -2,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	204
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	205 T_EOD = -1,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	206 T_Reference = 1, // CYGPKG_HAL
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	207 T_String = 2, // "hello"
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	208 T_Integer = 3, // 123
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	209 T_Double = 4, // 3.1415
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	210 T_Range = 5, // to
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	211 T_OpenBracket = 6, // (
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	212 T_CloseBracket = 7, // )
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	213 T_Minus = 8, // -
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	214 T_Plus = 9, // +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	215 T_Times = 10, // *
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	216 T_Divide = 11, // /
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	217 T_Exclamation = 12, // !
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	218 T_Tilde = 13, // ~
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	219 T_Questionmark = 14, // ?
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	220 T_Remainder = 15, // %
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	221 T_LeftShift = 16, // <<
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	222 T_RightShift = 17, // >>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	223 T_LessThan = 18, // <
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	224 T_LessEqual = 19, // <=
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	225 T_GreaterThan = 20, // >
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	226 T_GreaterEqual = 21, // >=
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	227 T_Equal = 22, // ==
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	228 T_NotEqual = 23, // !=
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	229 T_BitAnd = 24, // &
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	230 T_BitXor = 25, // ^
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	231 T_BitOr = 26, // \|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	232 T_And = 27, // &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	233 T_Or = 28, // \|\|
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	234 T_Colon = 29, // : (in a conditional)
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	235 T_StringConcat = 30, // .
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	236 T_Function = 31, // is_substr etc.
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	237 T_Comma = 32 // , (inside a function)
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	238
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	239 };
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	240
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	241 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	242 //{{{ Statics
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	243
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	244 // Statics to keep track of the current state.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	245 static std::string current_data = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	246 static unsigned int current_index = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	247 static unsigned int token_start = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	248 static int current_char = EOF;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	249 static token current_token = T_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	250 static std::string current_string = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	251 static std::string current_reference = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	252 static cdl_int current_int = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	253 static double current_double = 0.0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	254 static CdlValueFormat current_format = CdlValueFormat_Default;
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	255 static int current_function_id = 0;
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	256
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	257 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	258 //{{{ Character access
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	259
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	260 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	261 // Individual character access.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	262 // Note that current_index is one character past current_char.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	263
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	264 // Return the next character in the string, or EOF
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	265 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	266 next_char()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	267 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	268 if (current_index >= current_data.size()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	269 current_char = EOF;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	270 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	271 current_char = current_data[current_index++];
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	272 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	273 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	274
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	275 // Go back a character. This is useful when parsing
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	276 // strings. It is the responsibility of the calling code
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	277 // to make sure that we are not at the start of the buffer.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	278 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	279 backup_char()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	280 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	281 CYG_ASSERTC(((EOF == current_char) && (0 < current_index)) \|\| (1 < current_index));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	282 if (EOF != current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	283 current_index--;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	284 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	285 current_char = current_data[current_index - 1];
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	286 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	287
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	288 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	289 //{{{ get_error_location()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	290
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	291 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	292 // Construct part of a diagnostic message, indicating the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	293 // area in the data where the error occurred. This string
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	294 // is of the form {...data} ^char^ {data...}. Ideally
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	295 // the ^ markers would be on a subsequent line, eliminating
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	296 // the need for braces, but there is insufficient control
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	297 // of how the message gets presented to the user.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	298 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	299 // Care has to be taken with EOD.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	300 static std::string
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	301 get_error_location()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	302 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	303 CYG_REPORT_FUNCNAME("get_error_location");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	304 std::string result = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	305
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	306 // token_start is probably the best place for centering the error.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	307 // current_index is past the point where the error has occurred.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	308 if (token_start > 1) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	309 if (token_start > 16) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	310 result = "{..." + current_data.substr(token_start - 13, 13) + "} ";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	311 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	312 result = "{" + current_data.substr(0, token_start) + "}";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	313 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	314 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	315
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	316 if (current_char == EOF) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	317 result += " <end of data>";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	318 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	319 result += " ^" + std::string(1, current_data[token_start]) + "^ ";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	320 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	321
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	322 if (token_start < current_data.size()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	323 if ((token_start + 16) < current_data.size()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	324 result += "{" + current_data.substr(token_start + 1, current_data.size() - (token_start+1)) + "}";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	325 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	326 result += "{" + current_data.substr(token_start, 13) + "...}";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	327 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	328 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	329
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	330 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	331 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	332 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	333
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	334 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	335 //{{{ Token translation
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	336
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	337 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	338
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	339 // Convert a token into a binary expression operator
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	340 static CdlExprOp
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	341 token_to_binary_expr_op()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	342 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	343 CYG_REPORT_FUNCNAMETYPE("token_to_expr_op", "op %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	344 CdlExprOp result = CdlExprOp_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	345
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	346 switch(current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	347 case T_Minus: result = CdlExprOp_Subtract; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	348 case T_Plus: result = CdlExprOp_Add; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	349 case T_Times: result = CdlExprOp_Multiply; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	350 case T_Divide: result = CdlExprOp_Divide; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	351 case T_Remainder: result = CdlExprOp_Remainder; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	352 case T_LeftShift: result = CdlExprOp_LeftShift; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	353 case T_RightShift: result = CdlExprOp_RightShift; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	354 case T_LessThan: result = CdlExprOp_LessThan; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	355 case T_LessEqual: result = CdlExprOp_LessEqual; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	356 case T_GreaterThan: result = CdlExprOp_GreaterThan; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	357 case T_GreaterEqual: result = CdlExprOp_GreaterEqual; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	358 case T_Equal: result = CdlExprOp_Equal; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	359 case T_NotEqual: result = CdlExprOp_NotEqual; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	360 case T_BitAnd: result = CdlExprOp_BitAnd; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	361 case T_BitXor: result = CdlExprOp_BitXor; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	362 case T_BitOr: result = CdlExprOp_BitOr; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	363 case T_And: result = CdlExprOp_And; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	364 case T_Or: result = CdlExprOp_Or; break;
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	365 case T_StringConcat: result = CdlExprOp_StringConcat; break;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	366 default: result = CdlExprOp_Invalid; break;
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	367 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	368
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	369 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	370 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	371 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	372
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	373 // Convert a token into an ExprOp. This way the internal token enum does
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	374 // not need to be exported in order to define the interface.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	375 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	376 // In practice the higher level code will only look for a handful of
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	377 // cases, mainly EOD and the range operator, but we might as well
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	378 // do the job property.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	379 static CdlExprOp
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	380 token_to_expr_op()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	381 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	382 CYG_REPORT_FUNCNAMETYPE("token_to_expr_op", "expr op %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	383 CdlExprOp result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	384
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	385 // Many of the tokens are already handled for binary operators.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	386 result = token_to_binary_expr_op();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	387 if (CdlExprOp_Invalid == result) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	388 switch(current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	389 case T_EOD: result = CdlExprOp_EOD; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	390 case T_Reference: result = CdlExprOp_Reference; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	391 case T_String: result = CdlExprOp_StringConstant; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	392 case T_Integer: result = CdlExprOp_IntegerConstant; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	393 case T_Double: result = CdlExprOp_DoubleConstant; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	394 case T_Range: result = CdlExprOp_Range; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	395 case T_Exclamation: result = CdlExprOp_LogicalNot; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	396 case T_Tilde: result = CdlExprOp_BitNot; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	397 case T_Questionmark:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	398 case T_Colon: result = CdlExprOp_Cond; break; // best guess
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	399 case T_Function: result = CdlExprOp_Function; break;
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	400 case T_OpenBracket:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	401 case T_CloseBracket:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	402 case T_Invalid:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	403 default: result = CdlExprOp_Invalid; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	404 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	405 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	406 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	407 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	408 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	409
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	410 // A utility routine to turn the current token back into a string
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	411 // This is used for diagnostics.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	412 static std::string
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	413 token_to_string()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	414 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	415 CYG_REPORT_FUNCNAME("token_to_string");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	416 std::string result = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	417
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	418 switch(current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	419 case T_EOD: result = "<end of data>"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	420 case T_Reference: result = "reference to " + current_reference; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	421 case T_String: result = "string \"" + current_string + "\""; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	422 case T_Integer:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	423 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	424 std::string tmp;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	425 Cdl::integer_to_string(current_int, tmp, current_format);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	426 result = "integer constant " + tmp;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	427 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	428 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	429 case T_Double:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	430 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	431 std::string tmp;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	432 Cdl::double_to_string(current_double, tmp, current_format);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	433 result = "double constant " + tmp;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	434 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	435 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	436 case T_Range: result = "range operator \"to\""; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	437 case T_OpenBracket: result = "open bracket ("; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	438 case T_CloseBracket: result = "close bracket )"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	439 case T_Minus: result = "minus sign -"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	440 case T_Plus: result = "plus sign +"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	441 case T_Times: result = "multiply operator *"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	442 case T_Divide: result = "divide operator /"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	443 case T_Exclamation: result = "not operator !"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	444 case T_Tilde: result = "bitwise not operator ~"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	445 case T_Questionmark: result = "question mark ?"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	446 case T_Remainder: result = "remainder operator %"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	447 case T_LeftShift: result = "left shift operator <<"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	448 case T_RightShift: result = "right shift operator >>"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	449 case T_LessThan: result = "less-than operator <"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	450 case T_LessEqual: result = "less-or-equal operator <="; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	451 case T_GreaterThan: result = "greater-than operator >"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	452 case T_GreaterEqual: result = "greater-or-equal operator >="; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	453 case T_Equal: result = "equality operator =="; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	454 case T_NotEqual: result = "not-equal operator !="; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	455 case T_BitAnd: result = "bitwise and operator &"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	456 case T_BitXor: result = "bitwise xor operator ^"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	457 case T_BitOr: result = "bitwise or operator \|"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	458 case T_And: result = "and operator &&"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	459 case T_Or: result = "or operator \|\|"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	460 case T_Colon: result = "colon"; break;
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	461 case T_StringConcat: result = "string concatenation operator ."; break;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	462 case T_Function: result = std::string("function call ") + CdlFunction::get_name(current_function_id); break;
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	463 case T_Invalid:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	464 default: result = "<invalid token>"; break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	465 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	466
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	467 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	468 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	469 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	470
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	471 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	472 //{{{ Literals
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	473
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	474 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	475 //{{{ process_string()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	476
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	477 // The start of a string has been detected. Work out the entire string,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	478 // allowing for backslash escapes.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	479 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	480 process_string()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	481 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	482 CYG_REPORT_FUNCNAME("process_string");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	483 CYG_ASSERTC('"' == current_char);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	484 CYG_ASSERTC("" == current_string);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	485
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	486 std::string result = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	487
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	488 // Move past the leading quote mark.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	489 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	490 while ('"' != current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	491 if (EOF == current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	492 throw CdlParseException("Premature end of data in string constant.\n" + get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	493 } else if ('\\' == current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	494 // Allow \a, \b, \f, \n, \r, \t, \v, \ddd and \xhh.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	495 // Also copy with \newline space.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	496 // Any other character gets passed through unchanged.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	497 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	498 switch(current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	499 case EOF:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	500 throw CdlParseException("Premature end of data after backslash in string constant.\n" + get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	501 case 'a':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	502 result += '\a';
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	503 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	504 case 'b':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	505 result += '\b';
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	506 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	507 case 'f':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	508 result += '\f';
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	509 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	510 case 'n':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	511 result += '\n';
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	512 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	513 case 'r':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	514 result += '\r';
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	515 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	516 case 't':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	517 result += '\t';
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	518 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	519 case 'v':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	520 result += '\v';
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	521 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	522 case 'x':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	523 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	524 cdl_int tmp = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	525 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	526 if (!isxdigit(current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	527 throw CdlParseException("Non-hexadecimal digit detected in string \\x escape sequence.\n" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	528 get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	529 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	530 // NOTE: there is no overflow detection here.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	531 do {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	532 tmp *= 16;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	533 if (('0' <= current_char) && (current_char <= '9')) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	534 tmp += (current_char - '0');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	535 } else if (('a' <= current_char) && (current_char <= 'f')) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	536 tmp += 10 + (current_char - 'a');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	537 } else if (('A' <= current_char) && (current_char <= 'F')) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	538 tmp += 10 + (current_char - 'A');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	539 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	540 CYG_FAIL("C library error, isxdigit() succeeded on non-hexadecimal character");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	541 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	542 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	543 } while(isxdigit(current_char));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	544 backup_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	545 result += (char) tmp;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	546 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	547
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	548 case '\n':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	549 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	550 while ((EOF != current_char) && isspace(current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	551 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	552 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	553 // We have gone one too far, back up.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	554 backup_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	555 result += " ";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	556 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	557
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	558 default:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	559 if (('0' <= current_char) && (current_char <= '7')) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	560 // A sequence of octal digits.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	561 cdl_int tmp = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	562 do {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	563 tmp = (8 * tmp) + (current_char - '0');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	564 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	565 } while (('0' <= current_char) && (current_char <= '7'));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	566 backup_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	567 result += (char) tmp;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	568 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	569 // For all other backslash sequences, just add the second character
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	570 result += (char) current_char;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	571 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	572 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	573 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	574 result += (char) current_char;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	575 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	576 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	577 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	578 // The closing quote has been reached, move past it.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	579 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	580
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	581 // And all done.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	582 current_token = T_String;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	583 current_string = result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	584
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	585 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	586 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	587
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	588 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	589 //{{{ process_number()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	590
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	591 // The start of a number has been detected. This number may be an
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	592 // integer or a double. It is necessary to figure out where the number
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	593 // ends and invoke the appropriate Cdl:: conversion utility.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	594 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	595 // Care has to be taken with termination. Consider a token such as
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	596 // 134_5. This is not a string because there are no quote marks, nor
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	597 // is it a valid reference, and because it begins with a digit it
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	598 // should be interpreted as a number. The 134 bit works fine, then
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	599 // number processing stops leaving current_char as '_'. If we are
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	600 // parsing a list expression then the following _5 will actually
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	601 // be interpreted as a reference. To avoid this, here is a utility
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	602 // which checks number completion and throws an exception if
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	603 // necessary.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	604 static void check_number_termination()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	605 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	606 CYG_REPORT_FUNCNAME("check_number_termination");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	607
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	608 // End-of-data or any whitespace is ok.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	609 if ((EOF != current_char) && !isspace(current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	610 // Any valid operator is ok as well, or brackets for that matter.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	611 if (('-' != current_char) && ('+' != current_char) && ('*' != current_char) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	612 ('/' != current_char) && ('!' != current_char) && ('~' != current_char) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	613 ('?' != current_char) && ('%' != current_char) && ('<' != current_char) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	614 ('>' != current_char) && ('=' != current_char) && ('&' != current_char) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	615 ('^' != current_char) && ('\|' != current_char) && (':' != current_char) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	616 ('(' != current_char) && (')' != current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	617
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	618 std::string tmp;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	619 Cdl::integer_to_string(current_int, tmp);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	620 throw CdlParseException("Invalid character detected after number " + tmp + "\n" + get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	621 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	622 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	623
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	624 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	625 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	626
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	627 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	628 process_number()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	629 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	630 CYG_REPORT_FUNCNAME("process_number");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	631
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	632 std::string tmp = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	633 bool is_float = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	634
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	635 // Detect the special cases of 0x and octal numbers.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	636 if ('0' == current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	637 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	638 if (('x' == current_char) \|\| ('X' == current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	639
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	640 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	641 if (!isxdigit(current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	642 throw CdlParseException("Invalid hexadecimal number, expected at least one hexadecimal digit after 0x.\n"
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	643 + get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	644 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	645 current_int = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	646 do {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	647 current_int *= 16;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	648 if (('0' <= current_char) && (current_char <= '9')) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	649 current_int += (current_char - '0');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	650 } else if (('a' <= current_char) && (current_char <= 'f')) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	651 current_int += 10 + (current_char - 'a');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	652 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	653 current_int += 10 + (current_char - 'A');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	654 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	655 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	656 } while(isxdigit(current_char));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	657 current_token = T_Integer;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	658 current_format = CdlValueFormat_Hex;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	659 check_number_termination();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	660 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	661 return;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	662
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	663 } else if (('0' <= current_char) && (current_char <= '7')) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	664
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	665 current_int = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	666 do {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	667 current_int *= 8;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	668 current_int += (current_char - '0');
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	669 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	670 } while (('0' <= current_char) && (current_char <= '7'));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	671 current_token = T_Integer;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	672 current_format = CdlValueFormat_Octal;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	673 check_number_termination();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	674 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	675 return;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	676
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	677 } else if (('8' == current_char) \|\| ('9' == current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	678 throw CdlParseException("08... and 09... are not valid octal numbers.\n" + get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	679 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	680 // This could be plain 0, or 0.123
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	681 // Backup, and let the rest of the code take care of things
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	682 backup_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	683 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	684 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	685
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	686 do {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	687 tmp += (char) current_char;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	688 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	689 } while(isdigit(current_char));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	690
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	691 // If we have found a . then we have a floating point number with a fraction.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	692 if ('.' == current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	693 tmp += '.';
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	694 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	695 if (!isdigit(current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	696 throw CdlParseException("Invalid floating point constant, expected a digit for the fractional part.\n" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	697 get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	698 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	699 is_float = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	700 do {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	701 tmp += (char) current_char;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	702 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	703 } while(isdigit(current_char));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	704 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	705
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	706 // If we have found e or E then we have a floating point number with an exponent
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	707 if (('e' == current_char) \|\| ('E' == current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	708 tmp += 'E';
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	709 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	710 if (('+' == current_char) \|\| ('-' == current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	711 tmp += current_char;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	712 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	713 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	714 if (!isdigit(current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	715 throw CdlParseException("Invalid floating point constant, expected a digit for the exponent.\n" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	716 get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	717 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	718 is_float = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	719 do {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	720 tmp += (char) current_char;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	721 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	722 } while(isdigit(current_char));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	723 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	724
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	725 if (is_float) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	726 if (!Cdl::string_to_double(tmp, current_double)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	727 throw CdlParseException("Invalid floating point constant `" + tmp + "'.\n" + get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	728 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	729 current_token = T_Double;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	730 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	731 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	732 if (!Cdl::string_to_integer(tmp, current_int)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	733 throw CdlParseException("Invalid integer constant `" + tmp + "'.\n" + get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	734 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	735 current_token = T_Integer;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	736 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	737 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	738
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	739 check_number_termination();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	740 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	741 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	742
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	743 //}}}
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	744 //{{{ process_alphanumeric()
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	745
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	746 // The start of an alphanumeric sequence has been detected. This may
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	747 // be a reference, a function call, or an operator like eq or to. All
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	748 // such sequences must be a valid C preprocessor name, so the only
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	749 // characters allowed are underscore, upper and lower case characters,
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	750 // and digits. The first character cannot be a digit, but that has
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	751 // been checked already.
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	752 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	753 // Some care has to be taken with locale's, the C library may decide
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	754 // that a character is a letter even though the same character is not
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	755 // valid as far as the preprocessor is concerned.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	756 static void
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	757 process_alphanumeric()
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	758 {
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	759 CYG_REPORT_FUNCNAME("process_alphanumeric");
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	760
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	761 do {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	762 current_reference += (char) current_char;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	763 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	764 } while (('_' == current_char) \|\| isdigit(current_char) \|\|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	765 (('a' <= current_char) && (current_char <= 'z')) \|\|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	766 (('A' <= current_char) && (current_char <= 'Z')));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	767
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	768 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	769 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	770
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	771 //}}}
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	772 //{{{ process_special()
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	773
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	774 // Usually an alphanumeric sequence of characters is a reference, e.g.
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	775 // CYGPKG_KERNEL. However there are only so many special characters
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	776 // available so some operators are implemented as a sequence, e.g.
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	777 // "to". CDL also supports functions like is_substr().
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	778 //
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	779 // The data will have been collected into the current_reference string
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	780 // by a call to process_alphanumeric().
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	781
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	782 static bool
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	783 process_special()
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	784 {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	785 CYG_REPORT_FUNCNAMETYPE("process_special", "special %d");
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	786 bool result = false;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	787
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	788 if ("to" == current_reference) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	789 current_token = T_Range;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	790 result = true;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	791 } else if (CdlFunction::is_function(current_reference.c_str(), current_function_id)) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	792 current_token = T_Function;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	793 result = true;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	794 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	795
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	796 if (result) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	797 current_reference = "";
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	798 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	799 CYG_REPORT_RETVAL(result);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	800 return result;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	801 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	802
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	803 //}}}
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	804
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	805 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	806 //{{{ next_token()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	807
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	808 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	809 // Work out what the next token is. This includes the handling of
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	810 // strings, integers, doubles, and references.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	811 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	812 next_token()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	813 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	814 CYG_REPORT_FUNCNAMETYPE("next_token", "token %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	815
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	816 // Make sure there is no dross left lying around from the previous call.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	817 current_token = T_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	818 current_string = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	819 current_reference = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	820 current_int = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	821 current_double = 0.0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	822 current_format = CdlValueFormat_Default;
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	823 current_function_id = 0;
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	824
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	825 // Skip leading white space. This includes newlines, tabs, etc,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	826 // consider the case of:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	827 // ...
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	828 // legal_values {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	829 // 1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	830 // 2
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	831 // 4
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	832 // ..
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	833 // }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	834 // ...
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	835 // which is perfectly legitimate. White space inside strings
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	836 // is handled by the string literal code, and does not get filtered
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	837 // out here.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	838 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	839 // Exactly which characters are white-space is implementation-defined,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	840 // so a special check for EOF is in order.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	841 while ((EOF != current_char) && isspace(current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	842 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	843 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	844
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	845 // Remember the token starting point. next_char() has actually moved
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	846 // the index on by one.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	847 token_start = current_index - 1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	848
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	849 // The simple cases can be handled inline, the more complicated cases
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	850 // involve other functions
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	851 switch(current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	852
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	853 case EOF:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	854 current_token = T_EOD;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	855 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	856
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	857 case '"':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	858 process_string();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	859 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	860
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	861 case '(':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	862 current_token = T_OpenBracket;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	863 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	864 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	865
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	866 case ')':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	867 current_token = T_CloseBracket;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	868 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	869 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	870
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	871 // At this level it is not possible to distinguish between
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	872 // unary and binary operators, so no attempt is made to
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	873 // turn - and + into part of a number.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	874 case '-':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	875 current_token = T_Minus;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	876 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	877 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	878
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	879 case '+':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	880 current_token = T_Plus;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	881 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	882 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	883
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	884 case '*':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	885 current_token = T_Times;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	886 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	887 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	888
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	889 case '/':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	890 current_token = T_Divide;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	891 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	892 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	893
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	894 case '!':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	895 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	896 if ('=' == current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	897 current_token = T_NotEqual;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	898 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	899 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	900 current_token = T_Exclamation;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	901 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	902 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	903
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	904 case '~':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	905 current_token = T_Tilde;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	906 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	907 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	908
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	909 case '?':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	910 current_token = T_Questionmark;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	911 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	912 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	913
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	914 case '%':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	915 current_token = T_Remainder;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	916 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	917 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	918
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	919 case '<':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	920 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	921 if ('<' == current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	922 current_token = T_LeftShift;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	923 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	924 } else if ('=' == current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	925 current_token = T_LessEqual;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	926 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	927 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	928 current_token = T_LessThan;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	929 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	930 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	931
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	932 case '>':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	933 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	934 if ('>' == current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	935 current_token = T_RightShift;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	936 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	937 } else if ('=' == current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	938 current_token = T_GreaterEqual;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	939 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	940 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	941 current_token = T_GreaterThan;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	942 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	943 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	944
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	945 case '=':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	946 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	947 if ('=' != current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	948 throw CdlParseException(std::string("Incomplete == operator in expression.\n") + get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	949 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	950 current_token = T_Equal;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	951 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	952 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	953 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	954
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	955 case '&':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	956 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	957 if ('&' == current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	958 current_token = T_And;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	959 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	960 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	961 current_token = T_BitAnd;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	962 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	963 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	964
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	965 case '^':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	966 current_token = T_BitXor;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	967 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	968 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	969
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	970 case '\|':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	971 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	972 if ('\|' == current_char) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	973 current_token = T_Or;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	974 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	975 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	976 current_token = T_BitOr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	977 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	978 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	979
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	980 case ':':
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	981 current_token = T_Colon;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	982 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	983 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	984
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	985 case '.':
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	986 current_token = T_StringConcat;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	987 next_char();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	988 break;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	989
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	990 case ',':
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	991 current_token = T_Comma;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	992 next_char();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	993 break;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	994
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	995 default:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	996 // String constants have been handled already. The only
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	997 // valid tokens that are left are numbers, references,
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	998 // "specials" such as the range and string equality
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	999 // operators, and functions.
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1000 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1001 // Numbers should begin with a digit (plus and minus are
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1002 // tokenized separately).
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1003 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1004 // References must be valid C preprocessor symbols, i.e.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1005 // they must begin with either a letter or an underscore.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1006 // The range operator is handled most conveniently as
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1007 // a special case of a reference.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1008 if (isdigit(current_char)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1009 process_number();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1010 } else if (('_' == current_char) \|\|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1011 (('a' <= current_char) && (current_char <= 'z')) \|\|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1012 (('A' <= current_char) && (current_char <= 'Z'))) {
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1013 process_alphanumeric();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1014 if (!process_special()) {
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1015 current_token = T_Reference;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1016 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1017 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1018 std::string msg = "Unexpected character '";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1019 msg += (char) current_char;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1020 msg += "' in expression.\n";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1021 msg += get_error_location();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1022 throw CdlParseException(msg);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1023 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1024 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1025 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1026
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1027 CYG_REPORT_RETVAL(current_token);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1028 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1029
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1030 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1031 //{{{ initialise_tokenisation()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1032
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1033 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1034 // This is called at the start of expression parsing. It
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1035 // sets up the appropriate statics, and provides initial
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1036 // values for current_char and current_token.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1037 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1038 initialise_tokenisation(std::string data, int index)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1039 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1040 CYG_REPORT_FUNCNAME("initialise_tokenization");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1041
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1042 current_data = data;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1043 current_index = static_cast<unsigned int>(index);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1044 token_start = current_index;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1045 next_char();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1046 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1047
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1048 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1049 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1050
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1051 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1052
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1053 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1054 //{{{ Syntactic analysis
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1055
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1056 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1057 // Syntactic analysis.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1058 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1059 // The BNF of CDL expressions is something like this:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1060 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1061 // <expression> ::= <conditional>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1062 // <conditional> ::= <or> ? <conditional> : <conditional> \| <or>
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1063 // <or> ::= <and> [<or op> <and>] \|\|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1064 // <and> ::= <bitor> [<and op> <bitor>] ??
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1065 // <bitor> ::= <bitxor> [<bitor op> <bitxor>] \|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1066 // <bitxor> ::= <bitand> [<bitxor op> <bitand>] ^
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1067 // <bitand> ::= <eq> [<bitand op> <eq>] &
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1068 // <eq> ::= <comp> [<eq op> <comp>] == !=
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1069 // <comp> ::= <shift> [<comp op> <shift>] < <= > >=
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1070 // <shift> ::= <add> [<shift op> <add>] << >>
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1071 // <add> ::= <mult> [<add op> <mult>] + - .
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1072 // <mult> ::= <unary> [<mult op> <unary>] * / %
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1073 // <unary> ::= -<unary> \| +<unary> \| !<unary> \| *<unary> \| ?<unary> \|
82 6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST jlarmour parents: 76 diff changeset	1074 // ~<unary> \|
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1075 // <string constant> \| <integer constant> \|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1076 // <double constant> \| <reference> \|
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1077 // ( <expression> ) \| <function>
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1078 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1079 // There are separate functions for each of these terms.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1080
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1081 // A forward declaration, needed for bracketed subexpressions.
115 6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST jlarmour parents: 82 diff changeset	1082 static void parse_expression(CdlExpression);
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1083
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1084 // A utility to add a reference to the current expression, returning
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1085 // the index.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1086 static int
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1087 push_reference(CdlExpression expr, const std::string& reference)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1088 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1089 CYG_REPORT_FUNCNAMETYPE("push_reference", "new index %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1090 CYG_PRECONDITION_CLASSC(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1091
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1092 CdlReference ref(reference);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1093 expr->references.push_back(ref);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1094 int result = (int) expr->references.size() - 1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1095
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1096 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1097 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1098 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1099
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1100 // A utility to add a subexpression, returning its index.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1101 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1102 push_subexpression(CdlExpression expr, const CdlSubexpression& subexpr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1103 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1104 CYG_REPORT_FUNCNAME("push_subexpression");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1105 CYG_PRECONDITION_CLASSC(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1106
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1107 expr->sub_expressions.push_back(subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1108 expr->first_subexpression = ((int) expr->sub_expressions.size()) - 1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1109
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1110 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1111 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1112
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1113 // Another utility to hold of the most recent subexpression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1114 static CdlSubexpression&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1115 current_subexpression(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1116 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1117 CYG_REPORT_FUNCNAME("current_subexpression");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1118
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1119 CdlSubexpression& result = expr->sub_expressions[expr->first_subexpression];
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1120
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1121 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1122 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1123 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1124
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1125 static void
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1126 parse_function(CdlExpression expr)
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1127 {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1128 CYG_REPORT_FUNCNAME("parse_function");
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1129 CYG_REPORT_FUNCARG1XV(expr);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1130 CYG_PRECONDITION_CLASSC(expr);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1131
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1132 CdlSubexpression subexpr;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1133 subexpr.op = CdlExprOp_Function;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1134 subexpr.func = current_function_id;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1135
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1136 int number_of_args = CdlFunction::get_args_count(current_function_id);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1137 CYG_ASSERTC((0 < number_of_args) && (number_of_args <= CdlFunction_MaxArgs));
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1138 std::string name = current_reference;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1139
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1140 // check for the opening bracket: xyzzy(arg1, arg2)
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1141 next_token();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1142 if (T_OpenBracket != current_token) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1143 throw CdlParseException(std::string("Expected opening bracket after function ") + name + "\n" + get_error_location());
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1144 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1145 next_token();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1146
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1147 int i;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1148 for (i = 0; i < number_of_args; i++) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1149 parse_expression(expr);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1150 subexpr.args[i] = expr->first_subexpression;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1151 if (i < (number_of_args - 1)) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1152 if (T_Comma != current_token) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1153 throw CdlParseException(std::string("Expected comma between arguments in function ") +
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1154 name + "\n" + get_error_location());
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1155 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1156 next_token();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1157 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1158 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1159 if (T_CloseBracket != current_token) {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1160 throw CdlParseException(std::string("Expected closing bracket after function ") + name + "\n" + get_error_location());
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1161 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1162 next_token();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1163
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1164 // Allow the function implementation to check its arguments if it is so inclined.
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1165 CdlFunction::check(expr, subexpr);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1166
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1167 push_subexpression(expr, subexpr);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1168 CYG_REPORT_RETURN();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1169 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1170
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1171 static void
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1172 parse_unary(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1173 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1174 CYG_REPORT_FUNCNAME("parse_operand");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1175 CYG_REPORT_FUNCARG1XV(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1176 CYG_PRECONDITION_CLASSC(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1177
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1178 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1179
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1180 switch(current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1181 case T_EOD :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1182 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1183 // This warrants a special case
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1184 throw CdlParseException("End of expression reached when expecting an operand.\n" + get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1185 }
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1186
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1187 case T_Function :
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1188 {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1189 parse_function(expr);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1190 break;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1191 }
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1192
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1193 case T_Reference :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1194 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1195 subexpr.op = CdlExprOp_Reference;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1196 subexpr.reference_index = push_reference(expr, current_reference);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1197 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1198 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1199 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1200 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1201
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1202 case T_String :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1203 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1204 subexpr.op = CdlExprOp_StringConstant;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1205 subexpr.constants = current_string;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1206 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1207 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1208 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1209 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1210
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1211 case T_Integer :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1212 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1213 subexpr.op = CdlExprOp_IntegerConstant;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1214 subexpr.constants.set_integer_value(current_int, current_format);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1215 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1216 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1217 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1218 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1219
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1220 case T_Double :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1221 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1222 subexpr.op = CdlExprOp_DoubleConstant;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1223 subexpr.constants.set_double_value(current_double, current_format);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1224 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1225 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1226 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1227 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1228
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1229 case T_OpenBracket :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1230 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1231 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1232 parse_expression(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1233 if (T_CloseBracket != current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1234 throw CdlParseException("Missing close bracket after subexpression.\n" + get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1235 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1236 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1237 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1238 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1239
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1240 case T_Minus :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1241 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1242 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1243 parse_unary(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1244 CdlSubexpression& last_sub = current_subexpression(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1245 if (CdlExprOp_IntegerConstant == last_sub.op) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1246 // Do the negating inline, no need for another subexpression.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1247 last_sub.constants = last_sub.constants.get_integer_value() * -1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1248 } else if (CdlExprOp_DoubleConstant == last_sub.op) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1249 last_sub.constants = last_sub.constants.get_double_value() * -1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1250 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1251 // We could detect certain cases such as string constants etc.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1252 // For now don't bother.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1253 subexpr.op = CdlExprOp_Negate;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1254 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1255 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1256 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1257 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1258 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1259
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1260 case T_Plus :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1261 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1262 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1263 parse_unary(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1264 CdlSubexpression& last_sub = current_subexpression(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1265 if ((CdlExprOp_IntegerConstant == last_sub.op) \|\| (CdlExprOp_DoubleConstant == last_sub.op)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1266 // No need to do anything here.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1267 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1268 subexpr.op = CdlExprOp_Plus;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1269 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1270 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1271 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1272 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1273 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1274
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1275 case T_Times :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1276 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1277 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1278 parse_unary(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1279 subexpr.op = CdlExprOp_Indirect;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1280 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1281 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1282 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1283 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1284
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1285 case T_Exclamation :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1286 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1287 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1288 parse_unary(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1289 subexpr.op = CdlExprOp_LogicalNot;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1290 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1291 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1292 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1293 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1294
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1295 case T_Tilde :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1296 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1297 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1298 parse_unary(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1299 subexpr.op = CdlExprOp_BitNot;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1300 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1301 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1302 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1303 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1304
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1305 case T_Questionmark:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1306 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1307 // This is the `active' operator, it can only be applied directly to a reference.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1308 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1309 parse_unary(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1310 CdlSubexpression& last_sub = current_subexpression(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1311 if (CdlExprOp_Reference != last_sub.op) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1312 throw CdlParseException("The active operator ? can only be applied directly to a reference.\n" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1313 get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1314 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1315 // There is no point in creating a new subexpression object, just modify
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1316 // the existing one. This has the useful side effect of avoiding
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1317 // reference substitution in the eval code.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1318 last_sub.op = CdlExprOp_Active;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1319 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1320 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1321 default:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1322 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1323 throw CdlParseException("Unexpected token `" + token_to_string() + "', expecting an operand.\n" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1324 get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1325 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1326 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1327
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1328 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1329 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1330
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1331 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1332 parse_multiply(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1333 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1334 CYG_REPORT_FUNCNAME("parse_multiply");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1335
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1336 parse_unary(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1337 while ((T_Times == current_token) \|\| (T_Divide == current_token) \|\| (T_Remainder == current_token)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1338
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1339 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1340 subexpr.op =
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1341 (T_Times == current_token) ? CdlExprOp_Multiply :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1342 (T_Divide == current_token) ? CdlExprOp_Divide : CdlExprOp_Remainder;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1343 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1344
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1345 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1346 parse_unary(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1347
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1348 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1349 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1350 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1351
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1352 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1353 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1354
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1355 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1356 parse_add(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1357 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1358 CYG_REPORT_FUNCNAME("parse_add");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1359
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1360 parse_multiply(expr);
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1361 while ((T_Plus == current_token) \|\|
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1362 (T_Minus == current_token) \|\|
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1363 (T_StringConcat == current_token)) {
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1364
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1365 CdlSubexpression subexpr;
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1366 subexpr.op = (T_Plus == current_token) ? CdlExprOp_Add :
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1367 (T_Minus == current_token) ? CdlExprOp_Subtract :
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1368 CdlExprOp_StringConcat;
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1369 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1370
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1371 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1372 parse_multiply(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1373
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1374 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1375 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1376 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1377
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1378 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1379 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1380
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1381 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1382 parse_shift(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1383 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1384 CYG_REPORT_FUNCNAME("parse_shift");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1385
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1386 parse_add(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1387 while ((T_LeftShift == current_token) \|\| (T_RightShift == current_token)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1388
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1389 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1390 subexpr.op = (T_LeftShift == current_token) ? CdlExprOp_LeftShift : CdlExprOp_RightShift;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1391 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1392
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1393 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1394 parse_add(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1395
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1396 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1397 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1398 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1399
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1400 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1401 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1402
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1403 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1404 parse_comparison(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1405 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1406 CYG_REPORT_FUNCNAME("parse_comparison");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1407
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1408 parse_shift(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1409 while ((T_LessThan == current_token) \|\| (T_LessEqual == current_token) \|\|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1410 (T_GreaterThan == current_token) \|\| (T_GreaterEqual == current_token)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1411
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1412 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1413 subexpr.op =
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1414 (T_LessThan == current_token) ? CdlExprOp_LessThan :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1415 (T_LessEqual == current_token) ? CdlExprOp_LessEqual :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1416 (T_GreaterThan == current_token) ? CdlExprOp_GreaterThan : CdlExprOp_GreaterEqual;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1417 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1418
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1419 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1420 parse_shift(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1421
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1422 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1423 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1424 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1425
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1426 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1427 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1428
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1429 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1430 parse_equals(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1431 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1432 CYG_REPORT_FUNCNAME("parse_equals");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1433
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1434 parse_comparison(expr);
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1435 while ((T_Equal == current_token) \|\|
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1436 (T_NotEqual == current_token)) {
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1437
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1438 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1439 subexpr.op = (T_Equal == current_token) ? CdlExprOp_Equal : CdlExprOp_NotEqual;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1440 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1441
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1442 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1443 parse_comparison(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1444
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1445 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1446 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1447 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1448
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1449 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1450 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1451
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1452 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1453 parse_bitand(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1454 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1455 CYG_REPORT_FUNCNAME("parse_bitand");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1456
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1457 parse_equals(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1458 while (T_BitAnd == current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1459
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1460 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1461 subexpr.op = CdlExprOp_BitAnd;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1462 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1463
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1464 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1465 parse_equals(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1466
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1467 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1468 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1469 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1470
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1471 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1472 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1473
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1474 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1475 parse_bitxor(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1476 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1477 CYG_REPORT_FUNCNAME("parse_bitxor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1478
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1479 parse_bitand(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1480 while (T_BitXor == current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1481
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1482 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1483 subexpr.op = CdlExprOp_BitXor;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1484 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1485
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1486 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1487 parse_bitand(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1488
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1489 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1490 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1491 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1492
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1493 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1494 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1495
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1496 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1497 parse_bitor(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1498 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1499 CYG_REPORT_FUNCNAME("parse_bitor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1500
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1501 parse_bitxor(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1502 while (T_BitOr == current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1503
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1504 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1505 subexpr.op = CdlExprOp_BitOr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1506 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1507
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1508 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1509 parse_bitxor(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1510
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1511 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1512 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1513 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1514
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1515 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1516 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1517
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1518 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1519 parse_and(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1520 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1521 CYG_REPORT_FUNCNAME("parse_and");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1522 parse_bitor(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1523 while (T_And == current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1524
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1525 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1526 subexpr.op = CdlExprOp_And;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1527 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1528
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1529 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1530 parse_bitor(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1531
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1532 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1533 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1534 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1535
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1536 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1537 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1538
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1539 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1540 parse_or(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1541 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1542 CYG_REPORT_FUNCNAME("parse_or");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1543
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1544 parse_and(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1545 while (T_Or == current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1546
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1547 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1548 subexpr.op = CdlExprOp_Or;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1549 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1550
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1551 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1552 parse_and(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1553
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1554 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1555 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1556 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1557
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1558 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1559 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1560
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1561 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1562 parse_conditional(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1563 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1564 CYG_REPORT_FUNCNAME("parse_conditional");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1565
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1566 parse_or(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1567 if (T_Questionmark == current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1568 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1569 subexpr.op = CdlExprOp_Cond;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1570 subexpr.lhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1571
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1572 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1573 parse_conditional(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1574 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1575
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1576 if (T_Colon != current_token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1577 throw CdlParseException("Expected colon in conditional expression.\n" + get_error_location());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1578 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1579
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1580 next_token();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1581 parse_conditional(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1582 subexpr.rrhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1583
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1584 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1585 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1586
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1587 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1588 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1589
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1590 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1591 parse_expression(CdlExpression expr)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1592 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1593 CYG_REPORT_FUNCNAME("parse_expression");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1594
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1595 parse_conditional(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1596
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1597 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1598 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1599
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1600 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1601 // The entry point.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1602 void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1603 CdlExpressionBody::continue_parse(CdlExpression expr, std::string data, int& index, CdlExprOp& token, int& token_end)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1604 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1605 CYG_REPORT_FUNCNAME("CdlExpression::continue_parse");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1606 CYG_REPORT_FUNCARG1XV(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1607 CYG_PRECONDITION_CLASSC(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1608 CYG_PRECONDITIONC((CdlExprOp_Invalid == token) \|\| (CdlExprOp_And == token));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1609
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1610 int current_subexpr = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1611 initialise_tokenisation(data, index);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1612 parse_expression(expr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1613 if (CdlExprOp_And == token) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1614 CdlSubexpression subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1615 subexpr.op = CdlExprOp_And;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1616 subexpr.lhs_index = current_subexpr;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1617 subexpr.rhs_index = expr->first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1618 push_subexpression(expr, subexpr);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1619 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1620 token = token_to_expr_op();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1621 index = token_start;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1622 token_end = current_index;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1623
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1624 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1625 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1626
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1627 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1628
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1629 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1630 //{{{ Expression Evaluation
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1631
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1632 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1633 // Expression evaluation. This always happens in the context of a
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1634 // particular toplevel. The parsed expression is held in what amounts
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1635 // to a simple tree, so evaluation involves some recursion and a big
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1636 // switch statement.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1637
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1638 static void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1639 evaluate_subexpr(CdlEvalContext& context, CdlExpression expr, int subexpr_index, CdlSimpleValue& result)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1640 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1641 CYG_REPORT_FUNCNAME("evaluate_subexpr");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1642 CYG_REPORT_FUNCARG2XV(expr, subexpr_index);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1643 CYG_ASSERTC((subexpr_index >= 0) && ((unsigned int)subexpr_index < expr->sub_expressions.size()));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1644
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1645 const CdlSubexpression& subexpr = expr->sub_expressions[subexpr_index];
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1646 switch(subexpr.op) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1647 case CdlExprOp_StringConstant :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1648 case CdlExprOp_IntegerConstant :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1649 case CdlExprOp_DoubleConstant :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1650 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1651 result = subexpr.constants;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1652 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1653 }
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1654 case CdlExprOp_Function :
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1655 {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1656 CdlFunction::eval(context, expr, subexpr, result);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1657 break;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	1658 }
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1659 case CdlExprOp_Reference :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1660 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1661 // This expression may be happening in the context of a particular
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1662 // property. If so then the destination may or may not be resolved,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1663 // and this is significant in the context of loading and unloading.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1664 // Alternatively this expression may be being evaluated inside
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1665 // some Tcl code, with no particular context.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1666 CdlNode destination = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1667 if (0 != context.property) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1668 // There is a property, use the bound/unbound reference.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1669 destination = expr->references[subexpr.reference_index].get_destination();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1670 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1671 // The destination name can be retrieved, but we still need some
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1672 // way of resolving it.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1673 if (0 != context.toplevel) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1674 std::string destination_name = expr->references[subexpr.reference_index].get_destination_name();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1675 destination = context.toplevel->lookup(destination_name);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1676 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1677 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1678 if (0 == destination) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1679 // There are two ways of handling this.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1680 // 1) throw an eval exception, which will usually result
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1681 // in a new conflict object
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1682 // 2) substitute a value of 0.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1683 // There should already be a conflict object for an
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1684 // unresolved reference, and having two conflicts for
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1685 // essentially the same error is not useful. Using a value
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1686 // of 0 allows things to continue for a bit longer. It is
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1687 // consistent with active vs. inactive values, gives
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1688 // basically the right result for "requires" properties,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1689 // and so on.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1690 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1691 // For now option (2) has it, but this decision may be
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1692 // reversed in future.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1693 result = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1694 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1695 CdlValuable valuable = dynamic_cast<CdlValuable>(destination);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1696 if (0 == valuable) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1697 // This is a serious problem, an exception is warranted.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1698 throw CdlEvalException("The expression references `" + destination->get_class_name() + " " +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1699 destination->get_name() + "' which does not have a value.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1700 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1701 CdlSimpleValue::eval_valuable(context, valuable, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1702 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1703 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1704 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1705 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1706 case CdlExprOp_Negate :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1707 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1708 // Unary -. Evaluate the target. If it is numeric, fine. Otherwise
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1709 // an error is warranted.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1710 evaluate_subexpr(context, expr, subexpr.lhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1711 if (result.has_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1712 result.set_integer_value(-1 * result.get_integer_value());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1713 } else if (result.has_double_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1714 result.set_double_value(-1.0 * result.get_double_value());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1715 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1716 throw CdlEvalException("Attempt to negate non-numeric value `" + result.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1717 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1718 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1719 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1720 case CdlExprOp_Plus :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1721 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1722 // Unary +. Essentially this just checks that the current value is numeric.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1723 evaluate_subexpr(context, expr, subexpr.lhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1724 if ((!result.has_integer_value()) && (!result.has_double_value())) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1725 throw CdlEvalException("Attempt to apply unary + operator to non-numeric value `" + result.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1726 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1727 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1728 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1729 case CdlExprOp_LogicalNot :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1730 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1731 // !x
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1732 evaluate_subexpr(context, expr, subexpr.lhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1733 if (result.get_bool_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1734 result = false;;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1735 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1736 result = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1737 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1738 result.set_value_format(CdlValueFormat_Default);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1739 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1740 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1741 case CdlExprOp_BitNot :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1742 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1743 // ~x. The operand must be an integer value.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1744 evaluate_subexpr(context, expr, subexpr.lhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1745 if (result.has_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1746 cdl_int tmp = result.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1747 result = ~tmp;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1748 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1749 throw CdlEvalException("Attempt to apply unary ~ operator to non-integer value `" + result.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1750 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1751 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1752 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1753 case CdlExprOp_Indirect :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1754 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1755 // *x. The operand must evaluate to a string, and that string should be
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1756 // the name of a CdlValuable object.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1757 CdlNode destination = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1758 evaluate_subexpr(context, expr, subexpr.lhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1759 std::string name = result.get_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1760
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1761 if (0 != context.toplevel) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1762 destination = context.toplevel->lookup(name);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1763 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1764 CYG_FAIL("This situation should probably never happen.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1765 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1766
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1767 if (0 == destination) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1768 throw CdlEvalException("Attempt to apply unary indirection operator * to `" + name +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1769 "', which is not the name of a known CDL entity.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1770 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1771 CdlValuable valuable = dynamic_cast<CdlValuable>(destination);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1772 if (0 == valuable) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1773 throw CdlEvalException("Attempt to apply unary indirection operator * to `" + name +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1774 "', which does not have a value.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1775 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1776 CdlSimpleValue::eval_valuable(context, valuable, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1777 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1778 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1779 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1780 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1781 case CdlExprOp_Active :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1782 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1783 // ?x. If x is currently unresolved then default to 0.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1784 // See the CdlExprOp_Reference code above for a similar case.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1785 CdlNode destination = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1786 if (0 != context.property) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1787 destination = expr->references[subexpr.reference_index].get_destination();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1788 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1789 if (0 != context.toplevel) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1790 std::string destination_name = expr->references[subexpr.reference_index].get_destination_name();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1791 destination = context.toplevel->lookup(destination_name);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1792 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1793 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1794
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1795 bool active = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1796 if ((0 != destination) && context.transaction->is_active(destination)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1797 active = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1798 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1799 if (active) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1800 result = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1801 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1802 result = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1803 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1804 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1805 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1806 case CdlExprOp_Multiply :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1807 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1808 // x * y. For now this only makes sense for numerical data,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1809 // but it is possible to mix and match integer and double
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1810 // precision data.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1811 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1812 // Strictly speaking the rhs need only be evaluated if it
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1813 // is known that the lhs is numeric.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1814 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1815 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1816 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1817 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1818 if ((!(lhs.has_integer_value() \|\| lhs.has_double_value())) \|\|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1819 (!(rhs.has_integer_value() \|\| rhs.has_double_value()))) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1820 throw CdlEvalException("Attempt to multiply non-numerical values: `" + lhs.get_value() + "' * `" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1821 rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1822 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1823 if (lhs.has_integer_value() && rhs.has_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1824 result = lhs.get_integer_value() * rhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1825 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1826 result = lhs.get_double_value() * rhs.get_double_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1827 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1828 result.set_value_format(lhs, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1829 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1830 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1831 case CdlExprOp_Divide :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1832 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1833 // x / y. Basically the same as multiplication, apart from a check for
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1834 // division by zero.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1835 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1836 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1837 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1838 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1839 if ((!(lhs.has_integer_value() \|\| lhs.has_double_value())) \|\|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1840 (!(rhs.has_integer_value() \|\| rhs.has_double_value()))) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1841 throw CdlEvalException("Attempt to divide non-numerical values: `" + lhs.get_value() + "' / `" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1842 rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1843 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1844 if (lhs.has_integer_value() && rhs.has_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1845 cdl_int rhs_val = rhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1846 if (0 == rhs_val) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1847 throw CdlEvalException("Division by zero error: `" + lhs.get_value() + "' / `" + rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1848 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1849 result = lhs.get_integer_value() / rhs_val;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1850 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1851 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1852 double rhs_val = rhs.get_double_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1853 if (0.0 == rhs_val) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1854 throw CdlEvalException("Division by zero error: `" + lhs.get_value() + "' / `" + rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1855 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1856 result = lhs.get_double_value() / rhs_val;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1857 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1858 result.set_value_format(lhs, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1859 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1860 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1861 case CdlExprOp_Remainder :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1862 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1863 // x % y. Both operands must be integral.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1864 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1865 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1866 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1867 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1868 if (!(lhs.has_integer_value() && rhs.has_integer_value())) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1869 throw CdlEvalException("Attempt to use the remainder operator on non integral data: `" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1870 lhs.get_value() + "' % `" + rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1871 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1872 cdl_int rhs_val = rhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1873 if (0 == rhs_val) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1874 throw CdlEvalException("Division by zero error: `" + lhs.get_value() + "' % `" + rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1875 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1876 result = lhs.get_integer_value() % rhs_val;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1877 result.set_value_format(lhs, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1878 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1879 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1880 case CdlExprOp_Add :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1881 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1882 // x + y. For now this only makes sense for numerical data,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1883 // but it is possible to mix and match integer and double
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1884 // precision data. Arguably for string data this operator
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1885 // should mean concatenation, but it would probably be
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1886 // safer to have a separate operator for that.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1887 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1888 // Strictly speaking the rhs need only be evaluated if it
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1889 // is known that the lhs is numeric.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1890 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1891 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1892 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1893 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1894 if ((!(lhs.has_integer_value() \|\| lhs.has_double_value())) \|\|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1895 (!(rhs.has_integer_value() \|\| rhs.has_double_value()))) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1896 throw CdlEvalException("Attempt to add non-numerical values: `" + lhs.get_value() + "' + `" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1897 rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1898 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1899 if (lhs.has_integer_value() && rhs.has_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1900 result = lhs.get_integer_value() + rhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1901 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1902 result = lhs.get_double_value() + rhs.get_double_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1903 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1904 result.set_value_format(lhs, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1905 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1906 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1907 case CdlExprOp_Subtract :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1908 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1909 // x - y. Again only numerical data is supported for now.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1910 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1911 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1912 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1913 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1914 if ((!(lhs.has_integer_value() \|\| lhs.has_double_value())) \|\|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1915 (!(rhs.has_integer_value() \|\| rhs.has_double_value()))) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1916 throw CdlEvalException("Attempt to subtract non-numerical values: `" + lhs.get_value() + "' - `" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1917 rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1918 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1919 if (lhs.has_integer_value() && rhs.has_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1920 result = lhs.get_integer_value() - rhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1921 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1922 result = lhs.get_double_value() - rhs.get_double_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1923 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1924 result.set_value_format(lhs, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1925 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1926 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1927 case CdlExprOp_LeftShift :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1928 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1929 // x << y. Both operands must be integral. For now there is no
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1930 // check on the value of y.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1931 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1932 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1933 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1934 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1935 if (!(lhs.has_integer_value() && rhs.has_integer_value())) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1936 throw CdlEvalException("Attempt to use the left-shift operator on non integral data: `" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1937 lhs.get_value() + "' << `" + rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1938 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1939 result = lhs.get_integer_value() << rhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1940 result.set_value_format(lhs, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1941 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1942 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1943 case CdlExprOp_RightShift :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1944 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1945 // x >> y. Both operands must be integral. For now there is no
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1946 // check on the value of y.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1947 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1948 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1949 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1950 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1951 if (!(lhs.has_integer_value() && rhs.has_integer_value())) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1952 throw CdlEvalException("Attempt to use the right-shift operator on non integral data: `" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1953 lhs.get_value() + "' >> `" + rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1954 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1955 result = lhs.get_integer_value() >> rhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1956 result.set_value_format(lhs, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1957 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1958 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1959 case CdlExprOp_LessThan :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1960 case CdlExprOp_LessEqual :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1961 case CdlExprOp_GreaterThan :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1962 case CdlExprOp_GreaterEqual :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1963 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1964 // x < y, and similar comparison operators. These share
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1965 // sufficient code to warrant a common implementation. Only
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1966 // numerical data is supported for now. These operator could
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1967 // be interpreted as e.g. substring operations, but arguably
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1968 // separate operators would be better for that.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1969 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1970 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1971 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1972 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1973 if ((!(lhs.has_integer_value() \|\| lhs.has_double_value())) \|\|
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1974 (!(rhs.has_integer_value() \|\| rhs.has_double_value()))) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1975
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1976 std::string op_str =
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1977 (CdlExprOp_LessThan == subexpr.op) ? "<" :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1978 (CdlExprOp_LessEqual == subexpr.op) ? "<=" :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1979 (CdlExprOp_GreaterThan == subexpr.op) ? ">" : ">=";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1980
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1981 throw CdlEvalException("Attempt to compare non-numerical values: `" + lhs.get_value() +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1982 "' " + op_str + " `" + rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1983 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1984 bool val = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1985 if (lhs.has_integer_value() && rhs.has_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1986 cdl_int lhs_val = lhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1987 cdl_int rhs_val = rhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1988 val =
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1989 (CdlExprOp_LessThan == subexpr.op) ? (lhs_val < rhs_val) :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1990 (CdlExprOp_LessEqual == subexpr.op) ? (lhs_val <= rhs_val) :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1991 (CdlExprOp_GreaterThan == subexpr.op) ? (lhs_val > rhs_val) : (lhs_val >= rhs_val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1992 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1993 double lhs_val = lhs.get_double_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1994 double rhs_val = rhs.get_double_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1995 val =
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1996 (CdlExprOp_LessThan == subexpr.op) ? (lhs_val < rhs_val) :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1997 (CdlExprOp_LessEqual == subexpr.op) ? (lhs_val <= rhs_val) :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1998 (CdlExprOp_GreaterThan == subexpr.op) ? (lhs_val > rhs_val) : (lhs_val >= rhs_val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	1999 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2000 result = val;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2001 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2002 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2003 case CdlExprOp_Equal :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2004 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2005 // x == y. For numerical data this should be a numerical comparison.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2006 // Otherwise a string comparison has to be used.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2007 bool val = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2008 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2009 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2010 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2011 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2012 if ((lhs.has_integer_value() \|\| lhs.has_double_value()) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2013 (rhs.has_integer_value() \|\| rhs.has_double_value())) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2014
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2015 if (lhs.has_integer_value() && rhs.has_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2016 if (lhs.get_integer_value() == rhs.get_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2017 val = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2018 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2019 val = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2020 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2021 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2022 if (lhs.get_double_value() == rhs.get_double_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2023 val = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2024 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2025 val = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2026 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2027
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2028 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2029 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2030 // At least one of the two sides is non-numerical. Do a string comparison.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2031 if (lhs.get_value() == rhs.get_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2032 val = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2033 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2034 val = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2035 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2036 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2037 result = val;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2038 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2039 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2040 case CdlExprOp_NotEqual :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2041 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2042 // x != y. For numerical data this should be a numerical comparison.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2043 // Otherwise a string comparison has to be used.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2044 bool val = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2045 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2046 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2047 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2048 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2049 if ((lhs.has_integer_value() \|\| lhs.has_double_value()) &&
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2050 (rhs.has_integer_value() \|\| rhs.has_double_value())) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2051
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2052 if (lhs.has_integer_value() && rhs.has_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2053 if (lhs.get_integer_value() != rhs.get_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2054 val = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2055 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2056 val = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2057 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2058 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2059 if (lhs.get_double_value() != rhs.get_double_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2060 val = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2061 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2062 val = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2063 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2064
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2065 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2066 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2067 // At least one of the two sides is non-numerical. Do a string comparison.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2068 if (lhs.get_value() != rhs.get_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2069 val = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2070 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2071 val = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2072 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2073 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2074 result = val;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2075 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2076 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2077 case CdlExprOp_BitAnd :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2078 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2079 // x & y. Only integer data is supported.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2080 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2081 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2082 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2083 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2084 if (!(lhs.has_integer_value() && rhs.has_integer_value())) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2085 throw CdlEvalException("Attempt to use the bitwise and operator on non integral data: `" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2086 lhs.get_value() + "' & `" + rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2087 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2088 result = lhs.get_integer_value() & rhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2089 result.set_value_format(lhs, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2090 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2091 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2092 case CdlExprOp_BitXor :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2093 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2094 // x ^ y. Only integer data is supported.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2095 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2096 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2097 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2098 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2099 if (!(lhs.has_integer_value() && rhs.has_integer_value())) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2100 throw CdlEvalException("Attempt to use the bitwise xor operator on non integral data: `" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2101 lhs.get_value() + "' ^ `" + rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2102 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2103 result = lhs.get_integer_value() ^ rhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2104 result.set_value_format(lhs, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2105 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2106 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2107 case CdlExprOp_BitOr :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2108 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2109 // x \| y. Only integer data is supported.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2110 CdlSimpleValue lhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2111 CdlSimpleValue rhs;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2112 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2113 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2114 if (!(lhs.has_integer_value() && rhs.has_integer_value())) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2115 throw CdlEvalException("Attempt to use the bitwise or operator on non integral data: `" +
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2116 lhs.get_value() + "' \| `" + rhs.get_value() + "'.");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2117 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2118 result = lhs.get_integer_value() \| rhs.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2119 result.set_value_format(lhs, rhs);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2120 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2121 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2122 case CdlExprOp_And :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2123 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2124 // x && y. Both sides should be interpreted as boolean values,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2125 // and "y" should only be evaluated if necessary.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2126 evaluate_subexpr(context, expr, subexpr.lhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2127 if (!result.get_bool_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2128 result = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2129 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2130 evaluate_subexpr(context, expr, subexpr.rhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2131 if (result.get_bool_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2132 result = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2133 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2134 result = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2135 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2136 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2137 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2138 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2139 case CdlExprOp_Or :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2140 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2141 // x \|\| y. Both sides should be interpreted as boolean values,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2142 // and "y" should only be evaluated if necessary.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2143 evaluate_subexpr(context, expr, subexpr.lhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2144 if (result.get_bool_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2145 result = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2146 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2147 evaluate_subexpr(context, expr, subexpr.rhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2148 if (result.get_bool_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2149 result = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2150 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2151 result = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2152 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2153 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2154 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2155 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2156 case CdlExprOp_Cond :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2157 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2158 // x ? a : b.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2159 // First evaluate the condition. Then evaluate either the second
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2160 // or third argument, as appropriate.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2161 evaluate_subexpr(context, expr, subexpr.lhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2162 if (result.get_bool_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2163 evaluate_subexpr(context, expr, subexpr.rhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2164 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2165 evaluate_subexpr(context, expr, subexpr.rrhs_index, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2166 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2167 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2168 }
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2169 case CdlExprOp_StringConcat :
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2170 {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2171 // a . b
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2172 CdlSimpleValue lhs;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2173 CdlSimpleValue rhs;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2174 evaluate_subexpr(context, expr, subexpr.lhs_index, lhs);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2175 evaluate_subexpr(context, expr, subexpr.rhs_index, rhs);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2176 result = lhs.get_value() + rhs.get_value();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2177 break;
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2178 }
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2179
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2180 default:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2181 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2182 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2183
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2184 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2185 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2186
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2187 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2188 void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2189 CdlExpressionBody::eval_internal(CdlEvalContext& context, CdlSimpleValue& result)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2190 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2191 CYG_REPORT_FUNCNAME("CdlExpression::eval_internal)");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2192 CYG_REPORT_FUNCARG3XV(this, &context, &result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2193 CYG_INVARIANT_THISC(CdlExpressionBody);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2194 CYG_PRECONDITION_CLASSOC(context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2195
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2196 evaluate_subexpr(context, this, first_subexpression, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2197
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2198 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2199 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2200
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2201 void
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2202 CdlExpressionBody::eval_subexpression(CdlEvalContext& context, int index, CdlSimpleValue& result)
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2203 {
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2204 CYG_REPORT_FUNCNAME("CdlExpression::eval_subexpression)");
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2205 CYG_REPORT_FUNCARG4XV(this, &context, index, &result);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2206 CYG_INVARIANT_THISC(CdlExpressionBody);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2207 CYG_PRECONDITION_CLASSOC(context);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2208
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2209 evaluate_subexpr(context, this, index, result);
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2210
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2211 CYG_REPORT_RETURN();
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2212 }
511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 115 diff changeset	2213
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2214 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2215
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2216 //{{{ CdlExpression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2217
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2218 //{{{ Construction
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2219
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2220 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2221 // Ordinary expressions.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2222 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2223 // The default constructor is private and does very little. Expressions
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2224 // are created primarily by means of the parse() member function. There
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2225 // is an argument for having constructors that take the same arguments
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2226 // as the parse() member functions and relying on exception handling,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2227 // but that gets tricky for goal expressions and continue_parse().
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2228 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2229 // The copy constructor is protected and is used when creating e.g.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2230 // a default_value property object, which inherits from the ordinary
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2231 // expression class. Again it might be better to do the parsing in
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2232 // the constructor itself.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2233 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2234 // The assignment operator is private and illegal.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2235
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2236 CdlExpressionBody::CdlExpressionBody()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2237 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2238 CYG_REPORT_FUNCNAME("CdlExpression:: default constructor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2239 CYG_REPORT_FUNCARG1XV(this);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2240
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2241 expression_string = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2242 first_subexpression = -1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2243
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2244 cdlexpressionbody_cookie = CdlExpressionBody_Magic;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2245 CYGDBG_MEMLEAK_CONSTRUCTOR();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2246
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2247 CYG_POSTCONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2248 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2249 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2250
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2251 CdlExpressionBody::CdlExpressionBody(const CdlExpressionBody& original)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2252 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2253 CYG_REPORT_FUNCNAME("CdlExpression:: copy constructor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2254 CYG_REPORT_FUNCARG2XV(this, &original);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2255 CYG_INVARIANT_CLASSOC(CdlExpressionBody, original);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2256
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2257 // Sub-expressions are simple structs, so this should result in a bit-wise
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2258 // copy of each vector element
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2259 sub_expressions = original.sub_expressions;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2260
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2261 // Simple scalar
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2262 first_subexpression = original.first_subexpression;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2263
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2264 // The CdlReference class has a valid copy constructor and assignment
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2265 // operator, provided that the reference is not yet bound. This should
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2266 // be true when this copy constructor gets invoked, after parsing
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2267 // and during the construction of a derived property object.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2268 references = original.references;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2269 expression_string = original.expression_string;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2270
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2271 cdlexpressionbody_cookie = CdlExpressionBody_Magic;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2272 CYGDBG_MEMLEAK_CONSTRUCTOR();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2273
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2274 CYG_POSTCONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2275 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2276 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2277
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2278 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2279 //{{{ check_this()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2280
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2281 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2282 // check_this(). Expression objects can exist before any parsing has
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2283 // happened, not to mention in the middle of parsing. The
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2284 // first_subexpression field can be used to detect this.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2285
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2286 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2287 CdlExpressionBody::check_this(cyg_assert_class_zeal zeal) const
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2288 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2289 if (CdlExpressionBody_Magic != cdlexpressionbody_cookie) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2290 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2291 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2292 CYGDBG_MEMLEAK_CHECKTHIS();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2293
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2294 if (-1 == first_subexpression) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2295 return true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2296 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2297
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2298 switch(zeal) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2299 case cyg_system_test :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2300 case cyg_extreme :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2301 case cyg_thorough :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2302 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2303 for (std::vector<CdlReference>::const_iterator i = references.begin(); i != references.end(); i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2304 if (!i->check_this(cyg_quick)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2305 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2306 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2307 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2308 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2309 case cyg_quick :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2310 if ((unsigned)first_subexpression >= sub_expressions.size()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2311 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2312 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2313 case cyg_trivial :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2314 case cyg_none :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2315 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2316 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2317
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2318 return true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2319 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2320
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2321 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2322 //{{{ Destruction
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2323
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2324 CdlExpressionBody::~CdlExpressionBody()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2325 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2326 CYG_REPORT_FUNCNAME("CdlExpression::destructor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2327 CYG_REPORT_FUNCARG1XV(this);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2328 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2329
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2330 cdlexpressionbody_cookie = CdlExpressionBody_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2331 first_subexpression = -1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2332 sub_expressions.clear();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2333 expression_string = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2334
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2335 // This assumes that all references have been unbound already by
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2336 // higher-level destructors.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2337 references.clear();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2338
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2339 CYGDBG_MEMLEAK_DESTRUCTOR();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2340
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2341 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2342 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2343
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2344 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2345 //{{{ Parsing - exported interface
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2346
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2347 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2348 // parse(string) invokes parse(string, ...) and checks that the expression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2349 // has terminated with EOD. Parsing of list expressions etc. can terminate
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2350 // with some other token.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2351 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2352 // parse(string, ...) allocates the expression object and invokes
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2353 // continue_parse().
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2354 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2355 // continue_parse() is supposed to do all the hard work.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2356
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2357 CdlExpression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2358 CdlExpressionBody::parse(std::string data)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2359 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2360 CYG_REPORT_FUNCNAMETYPE("CdlExpression::parse", "result %p");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2361
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2362 CdlExpression result = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2363 int index = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2364 CdlExprOp next_op = CdlExprOp_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2365 int end_index;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2366
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2367 result = parse(data, index, next_op, end_index);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2368
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2369 // Either there has already been a parsing or out-of-memory
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2370 // exception, or we should be at the end of the expression string.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2371 if (CdlExprOp_EOD != next_op) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2372 delete result;
82 6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST jlarmour parents: 76 diff changeset	2373 throw CdlParseException("Unexpected data at end of expression.\n" + get_error_location());
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2374 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2375
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2376 // Keep a copy of the original string for diagnostics purposes.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2377 result->expression_string = data;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2378
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2379 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2380 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2381 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2382
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2383 CdlExpression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2384 CdlExpressionBody::parse(std::string data, int& index, CdlExprOp& next_token, int& token_end)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2385 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2386 CYG_REPORT_FUNCNAMETYPE("CdlExpression::parse", "result %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2387
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2388 CdlExpression result = new CdlExpressionBody;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2389
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2390 try {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2391 continue_parse(result, data, index, next_token, token_end);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2392 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2393 catch (...) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2394 delete result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2395 throw;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2396 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2397
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2398 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2399 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2400 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2401
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2402 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2403 //{{{ update()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2404
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2405 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2406 // There has been a change in the toplevel which involves entities being
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2407 // created or destroyed, and reference resolution is required.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2408
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2409 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2410 CdlExpressionBody::update(CdlTransaction transaction, CdlNode source, CdlProperty source_prop, CdlNode dest, CdlUpdate change)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2411 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2412 CYG_REPORT_FUNCNAMETYPE("CdlExpression::update", "result %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2413 CYG_REPORT_FUNCARG6XV(this, transaction, source, source_prop, dest, change);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2414 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2415 CYG_PRECONDITION_CLASSC(source);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2416 CYG_PRECONDITION_CLASSC(source_prop);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2417
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2418 CdlToplevel toplevel = source->get_toplevel();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2419 bool result = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2420 std::vector<CdlReference>::iterator ref_i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2421
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2422 switch(change) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2423 case CdlUpdate_Loaded:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2424 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2425 // The source package has just been loaded. Try to resolve every
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2426 // reference, creating CdlConflict objects where necessary.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2427 CYG_ASSERTC(0 == dest);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2428 for (ref_i = references.begin(); ref_i != references.end(); ref_i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2429 dest = toplevel->lookup(ref_i->get_destination_name());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2430 if (0 == dest) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2431 CdlConflict_UnresolvedBody::make(transaction, source, source_prop, ref_i->get_destination_name());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2432 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2433 ref_i->bind(source, source_prop, dest);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2434 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2435 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2436 result = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2437 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2438 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2439
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2440 case CdlUpdate_Unloading:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2441 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2442 // The source package is being unloaded. Unbind all currently bound references.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2443 // Also destroy any unresolved conflicts.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2444 CYG_ASSERTC(0 == dest);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2445 for (ref_i = references.begin(); ref_i != references.end(); ref_i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2446 dest = ref_i->get_destination();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2447 if (0 != dest) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2448 ref_i->unbind(source, source_prop);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2449 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2450 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2451 result = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2452 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2453 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2454
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2455 case CdlUpdate_Created :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2456 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2457
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2458 // A previously unresolved reference can now be resolved.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2459 // It is necessary to search the vector for an unresolved
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2460 // reference with the desired name, and do the binding.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2461 // This search may fail in the case of list expressions.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2462 CYG_ASSERT_CLASSC(dest);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2463 std::string dest_name = dest->get_name();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2464 for (ref_i = references.begin(); !result && (ref_i != references.end()); ref_i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2465 if ((dest_name == ref_i->get_destination_name()) && (0 == ref_i->get_destination())) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2466 ref_i->bind(source, source_prop, dest);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2467 result = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2468
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2469 std::vector<CdlConflict> conflicts;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2470 std::vector<CdlConflict>::iterator conf_i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2471 transaction->get_structural_conflicts(source, source_prop, &CdlConflict_UnresolvedBody::test, conflicts);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2472 for (conf_i = conflicts.begin(); conf_i != conflicts.end(); conf_i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2473 CdlConflict_Unresolved real_conf = dynamic_cast<CdlConflict_Unresolved>(*conf_i);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2474 CYG_ASSERTC(0 != real_conf);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2475 if (dest_name == real_conf->get_target_name()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2476 transaction->clear_conflict(real_conf);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2477 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2478 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2479 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2480 CYG_ASSERTC(conf_i != conflicts.end());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2481 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2482 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2483 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2484 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2485
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2486 case CdlUpdate_Destroyed :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2487 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2488 // A previously resolved reference is about to become illegal.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2489 // Search the vector for a resolved reference object matching
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2490 // the destination, and unbind it. Also create a conflict
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2491 // object. The search can fail in the case of list expressions
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2492 CYG_ASSERT_CLASSC(dest);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2493 for (ref_i = references.begin(); !result && (ref_i != references.end()); ref_i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2494 if (dest == ref_i->get_destination()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2495 ref_i->unbind(source, source_prop);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2496 CdlConflict_UnresolvedBody::make(transaction, source, source_prop, ref_i->get_destination_name());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2497 result = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2498 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2499 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2500 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2501 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2502
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2503 default :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2504 CYG_FAIL("Illegal change type passed to CdlExpression::update");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2505 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2506 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2507
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2508 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2509 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2510 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2511
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2512 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2513 //{{{ Evaluation
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2514
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2515 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2516 // Expression evaluation. At the end of the day everything filters through
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2517 // to eval_internal() which should all the hard work.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2518 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2519 // The eval() member function handles EvalException conflicts. The
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2520 // eval_internal() member function does not, and is used for list
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2521 // and goal expressions as well.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2522
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2523 void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2524 CdlExpressionBody::eval(CdlEvalContext& context, CdlSimpleValue& result)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2525 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2526 CYG_REPORT_FUNCNAME("CdlExpression::eval");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2527
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2528 try {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2529
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2530 eval_internal(context, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2531
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2532 // Evaluation has succeeded, so if there was an EvalException
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2533 // conflict get rid of it. This can only happen in the context
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2534 // of a transaction.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2535 if ((0 != context.transaction) && (0 != context.node) && (0 != context.property)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2536 context.transaction->clear_conflicts(context.node, context.property, &CdlConflict_EvalExceptionBody::test);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2537 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2538
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2539 } catch(CdlEvalException e) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2540
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2541 if ((0 != context.transaction) && (0 != context.node) && (0 != context.property)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2542
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2543 CdlConflict conflict = context.transaction->get_conflict(context.node, context.property,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2544 &CdlConflict_EvalExceptionBody::test);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2545 if (0 == conflict) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2546 CdlConflict_EvalExceptionBody::make(context.transaction, context.node, context.property, e.get_message());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2547 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2548
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2549 CdlConflict_EvalException eval_conf = dynamic_cast<CdlConflict_EvalException>(conflict);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2550 CYG_ASSERTC(0 != eval_conf);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2551 if (eval_conf->get_explanation() != e.get_message()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2552
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2553 // Replace the conflict object. That way higher level code gets informed
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2554 // there has been a change.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2555 context.transaction->clear_conflict(conflict);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2556 CdlConflict_EvalExceptionBody::make(context.transaction, context.node, context.property, e.get_message());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2557 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2558 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2559 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2560
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2561 throw;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2562 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2563 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2564
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2565 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2566 //{{{ Misc
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2567
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2568 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2569
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2570 std::string
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2571 CdlExpressionBody::get_original_string() const
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2572 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2573 CYG_REPORT_FUNCNAME("CdlExpression::get_original_string");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2574 CYG_REPORT_FUNCARG1XV(this);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2575 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2576
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2577 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2578 return expression_string;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2579 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2580
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2581 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2582
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2583 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2584 //{{{ CdlListExpression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2585
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2586 //{{{ Construction
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2587
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2588 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2589 // The normal sequence of events is:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2590 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2591 // 1) higher level code calls CdlListExpressionbody::parse()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2592 // 2) this static member creates a new and empty list expression object.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2593 // The constructor need not do very much.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2594 // 3) the parse() member then fills in the newly created object
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2595 // 4) the object is returned to higher-level code
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2596 // 5) usually the list expression will now become part of
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2597 // a property object by means of a copy constructor.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2598 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2599 // The only complication is that a list expression contains a vector
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2600 // of CdlExpression pointers which must be freed during the destructor.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2601 // The copy constructor does not make duplicates of the individual
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2602 // expression objects, instead ownership is transferred.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2603
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2604 CdlListExpressionBody::CdlListExpressionBody()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2605 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2606 CYG_REPORT_FUNCNAME("CdlListExpression:: default constructor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2607 CYG_REPORT_FUNCARG1XV(this);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2608
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2609 expression_string = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2610
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2611 cdllistexpressionbody_cookie = CdlListExpressionBody_Magic;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2612 CYGDBG_MEMLEAK_CONSTRUCTOR();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2613
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2614 CYG_POSTCONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2615 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2616 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2617
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2618 CdlListExpressionBody::CdlListExpressionBody(const CdlListExpressionBody& original)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2619 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2620 CYG_REPORT_FUNCNAME("CdlListExpression:: copy constructor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2621 CYG_REPORT_FUNCARG2XV(this, &original);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2622 CYG_INVARIANT_CLASSOC(CdlListExpressionBody, original);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2623
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2624 expression_string = original.expression_string;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2625
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2626 // These copy across the pointers
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2627 data = original.data;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2628 ranges = original.ranges;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2629
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2630 // And this clears out the pointers, but leaves the expression objects lying around
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2631 CdlListExpression tmp = const_cast<CdlListExpression>(&original);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2632 tmp->data.clear();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2633 tmp->ranges.clear();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2634
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2635 cdllistexpressionbody_cookie = CdlListExpressionBody_Magic;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2636 CYGDBG_MEMLEAK_CONSTRUCTOR();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2637
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2638 CYG_POSTCONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2639 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2640 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2641
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2642 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2643 //{{{ Destruction
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2644
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2645 CdlListExpressionBody::~CdlListExpressionBody()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2646 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2647 CYG_REPORT_FUNCNAME("CdlListExpression:: destructor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2648 CYG_REPORT_FUNCARG1XV(this);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2649 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2650
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2651 cdllistexpressionbody_cookie = CdlListExpressionBody_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2652 expression_string = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2653
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2654 for (std::vector<CdlExpression>::iterator i = data.begin(); i != data.end(); i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2655 delete *i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2656 *i = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2657 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2658 for (std::vector<std::pair<CdlExpression, CdlExpression> >::iterator j = ranges.begin(); j != ranges.end(); j++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2659 delete j->first;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2660 delete j->second;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2661 j->first = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2662 j->second = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2663 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2664 data.clear();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2665 ranges.clear();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2666 CYGDBG_MEMLEAK_DESTRUCTOR();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2667
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2668 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2669 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2670
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2671 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2672 //{{{ check_this()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2673
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2674 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2675 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2676 CdlListExpressionBody::check_this(cyg_assert_class_zeal zeal) const
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2677 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2678 if (CdlListExpressionBody_Magic != cdllistexpressionbody_cookie) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2679 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2680 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2681 CYGDBG_MEMLEAK_CHECKTHIS();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2682 switch(zeal) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2683 case cyg_system_test :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2684 case cyg_extreme :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2685 case cyg_thorough :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2686 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2687 for (std::vector<CdlExpression>::const_iterator i = data.begin(); i != data.end(); i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2688 if (!(*i)->check_this(cyg_quick)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2689 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2690 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2691 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2692 for (std::vector<std::pair<CdlExpression,CdlExpression> >::const_iterator j = ranges.begin();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2693 j != ranges.end();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2694 j++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2695 if (!(j->first->check_this(cyg_quick)) \|\| !(j->second->check_this(cyg_quick))) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2696 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2697 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2698 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2699 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2700 case cyg_quick :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2701 case cyg_trivial :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2702 case cyg_none :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2703 default :
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2704 break;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2705 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2706
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2707 return true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2708 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2709
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2710 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2711 //{{{ Parsing
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2712
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2713 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2714 // Parsing a list expression involves repeated parsing of ordinary
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2715 // expressions until an EOD token is reached.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2716
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2717 CdlListExpression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2718 CdlListExpressionBody::parse(std::string data)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2719 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2720 CYG_REPORT_FUNCNAMETYPE("CdlListExpression::parse", "result %p");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2721
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2722 // Allocate an expression object that can then be filled in.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2723 CdlListExpression result = new CdlListExpressionBody;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2724
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2725 // Do the parsing in a try/catch statement to make sure the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2726 // allocated expression gets freed on a parse error.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2727 try {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2728 int index = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2729 int end_index = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2730 CdlExprOp op = CdlExprOp_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2731 CdlExpression expr1 = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2732
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2733 do {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2734 // Try to parse the next expression in the list
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2735 op = CdlExprOp_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2736 expr1 = CdlExpressionBody::parse(data, index, op, end_index);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2737
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2738 // There should now be a valid expression, failure would have
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2739 // resulted in an exception.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2740 CYG_ASSERT_CLASSC(expr1);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2741
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2742 // Allow for ranges.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2743 if (CdlExprOp_Range != op) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2744 // A simple expression, just add it to the current data vector
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2745 // "index" will contain the appropriate value.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2746 result->data.push_back(expr1);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2747 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2748 // A range expression. Get the other end of the range.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2749 // This requires manipulating index a bit.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2750 CdlExpression expr2 = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2751 index = end_index;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2752 op = CdlExprOp_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2753 try {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2754 expr2 = CdlExpressionBody::parse(data, index, op, end_index);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2755 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2756 catch (...) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2757 delete expr1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2758 throw;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2759 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2760 result->ranges.push_back(std::make_pair(expr1, expr2));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2761 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2762 } while (CdlExprOp_EOD != op);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2763 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2764 catch (...) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2765 delete result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2766 throw;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2767 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2768
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2769 // Keep track of the original string for diagnostics purposes
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2770 result->expression_string = data;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2771
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2772 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2773 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2774 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2775
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2776 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2777 //{{{ update()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2778
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2779 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2780 // This code is invoked when it is necessary to update the references
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2781 // for the list expression. There are four situations in which this
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2782 // can happen: the package has just been loaded; the package is being
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2783 // unloaded; a referenced target is being created; a referenced target is
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2784 // being destroyed.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2785 //
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2786 // The first two cases simply involve processing every expression that
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2787 // makes up the overall list expression. The last two cases involve
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2788 // searching through the expressions until an applicable one is found.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2789 // Note that an expression may contain multiple references to another
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2790 // object, resulting in multiple calls to this function.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2791
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2792 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2793 CdlListExpressionBody::update(CdlTransaction transact, CdlNode source, CdlProperty source_prop, CdlNode dest, CdlUpdate change)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2794 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2795 CYG_REPORT_FUNCNAMETYPE("CdlListExpression::update", "result %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2796 CYG_REPORT_FUNCARG6XV(this, transact, source, source_prop, dest, change);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2797 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2798 CYG_PRECONDITION_CLASSC(source);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2799 CYG_PRECONDITION_CLASSC(source_prop);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2800
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2801 bool result = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2802
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2803 if ((CdlUpdate_Loaded == change) \|\| (CdlUpdate_Unloading == change)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2804
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2805 std::vector<CdlExpression>::const_iterator expr_i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2806 std::vector<std::pair<CdlExpression, CdlExpression> >::const_iterator pair_i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2807
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2808 for (expr_i = data.begin(); expr_i != data.end(); expr_i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2809 bool handled = (*expr_i)->update(transact, source, source_prop, dest, change);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2810 CYG_ASSERTC(handled);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2811 CYG_UNUSED_PARAM(bool, handled);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2812 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2813 for (pair_i = ranges.begin(); pair_i != ranges.end(); pair_i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2814 bool handled = pair_i->first->update(transact, source, source_prop, dest, change);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2815 CYG_ASSERTC(handled);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2816 handled = pair_i->second->update(transact, source, source_prop, dest, change);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2817 CYG_ASSERTC(handled);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2818 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2819
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2820 result = true;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2821
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2822 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2823 CYG_ASSERTC((CdlUpdate_Created == change) \|\| (CdlUpdate_Destroyed == change));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2824
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2825 std::vector<CdlExpression>::const_iterator expr_i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2826 std::vector<std::pair<CdlExpression, CdlExpression> >::const_iterator pair_i;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2827
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2828 for (expr_i = data.begin(); !result && (expr_i != data.end()); expr_i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2829 result = (*expr_i)->update(transact, source, source_prop, dest, change);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2830 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2831 for (pair_i = ranges.begin(); !result && (pair_i != ranges.end()); pair_i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2832 result = pair_i->first->update(transact, source, source_prop, dest, change);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2833 if (!result) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2834 result = pair_i->second->update(transact, source, source_prop, dest, change);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2835 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2836 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2837 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2838
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2839 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2840 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2841 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2842
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2843 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2844 //{{{ Evaluation
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2845
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2846 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2847 // Evaluation. The hard work is actually done in eval_internal()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2848
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2849 void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2850 CdlListExpressionBody::eval(CdlEvalContext& context, CdlListValue& result)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2851 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2852 CYG_REPORT_FUNCNAME("CdlListExpression::eval");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2853 CYG_REPORT_FUNCARG3XV(this, &context, &result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2854 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2855 CYG_PRECONDITION_CLASSOC(context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2856
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2857 this->eval_internal(context, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2858
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2859 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2860 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2861
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2862 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2863 // This requires evaluating each expression in the data and ranges
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2864 // vectors and adding the result to the appropriate vector in result.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2865 // Various error conditions are possible.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2866
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2867 void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2868 CdlListExpressionBody::eval_internal(CdlEvalContext& context, CdlListValue& result)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2869 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2870 CYG_REPORT_FUNCNAME("CdlListExpression::eval_internal");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2871 CYG_REPORT_FUNCARG2XV(this, &context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2872
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2873 result.table.clear();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2874 result.integer_ranges.clear();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2875 result.double_ranges.clear();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2876
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2877 CdlSimpleValue val1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2878 CdlSimpleValue val2;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2879
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2880 try {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2881 for (std::vector<CdlExpression>::const_iterator i = data.begin(); i != data.end(); i++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2882 (*i)->eval_internal(context, val1);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2883 if ("" != val1.get_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2884 result.table.push_back(val1);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2885 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2886 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2887 for (std::vector<std::pair<CdlExpression,CdlExpression> >::const_iterator j = ranges.begin(); j != ranges.end(); j++) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2888 j->first->eval_internal(context, val1);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2889 j->second->eval_internal(context, val2);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2890
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2891 if (val1.has_integer_value() && val2.has_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2892 cdl_int x1 = val1.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2893 cdl_int x2 = val2.get_integer_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2894 if (x1 > x2) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2895 cdl_int tmp = x1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2896 x1 = x2;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2897 x2 = tmp;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2898 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2899 result.integer_ranges.push_back(std::make_pair(x1, x2));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2900 } else if (val1.has_double_value() && val2.has_double_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2901 double x1 = val1.get_double_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2902 double x2 = val2.get_double_value();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2903 if (x1 > x2) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2904 double tmp = x1;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2905 x1 = x2;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2906 x2 = tmp;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2907 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2908 result.double_ranges.push_back(std::make_pair(x1, x2));
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2909 } else {
82 6736c52df507 Merge from eCos master repository on 2000-04-14-13:35:46-BST jlarmour parents: 76 diff changeset	2910 throw CdlEvalException("Range expression involves non-numerical limits");
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2911 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2912 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2913
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2914 // Any problems would have resulted in an exception. If there
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2915 // was a previous EvalExeption for this property, it is no
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2916 // longer applicable
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2917 if ((0 != context.transaction) && (0 != context.node) && (0 != context.property)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2918 context.transaction->clear_conflicts(context.node, context.property, &CdlConflict_EvalExceptionBody::test);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2919 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2920
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2921 } catch(CdlEvalException e) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2922
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2923 if ((0 != context.transaction) && (0 != context.node) && (0 != context.property)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2924
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2925 CdlConflict conflict = context.transaction->get_conflict(context.node, context.property,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2926 &CdlConflict_EvalExceptionBody::test);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2927 if (0 == conflict) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2928 CdlConflict_EvalExceptionBody::make(context.transaction, context.node, context.property, e.get_message());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2929 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2930 CdlConflict_EvalException eval_conf = dynamic_cast<CdlConflict_EvalException>(conflict);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2931 CYG_ASSERTC(0 != eval_conf);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2932 if (eval_conf->get_explanation() != e.get_message()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2933
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2934 // Replace the conflict object. Higher level will be informed about this.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2935 context.transaction->clear_conflict(conflict);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2936 CdlConflict_EvalExceptionBody::make(context.transaction, context.node, context.property, e.get_message());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2937 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2938 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2939 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2940
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2941 throw;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2942 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2943
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2944 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2945 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2946
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2947 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2948 //{{{ is_member()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2949
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2950 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2951
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2952 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2953 CdlListExpressionBody::is_member(CdlEvalContext& context, CdlSimpleValue& val)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2954 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2955 CYG_REPORT_FUNCNAMETYPE("CdlListExpression::is_member (value)", "result %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2956 CYG_REPORT_FUNCARG3XV(this, &context, &val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2957 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2958 CYG_PRECONDITION_CLASSOC(context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2959
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2960 bool result = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2961 CdlListValue list_val;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2962 eval_internal(context, list_val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2963 result = list_val.is_member(val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2964
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2965 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2966 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2967 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2968
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2969 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2970 CdlListExpressionBody::is_member(CdlEvalContext& context, std::string val)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2971 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2972 CYG_REPORT_FUNCNAMETYPE("CdlListExpression::is_member (string)", "result %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2973 CYG_REPORT_FUNCARG2XV(this, &context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2974 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2975 CYG_PRECONDITION_CLASSOC(context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2976
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2977 bool result = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2978 CdlListValue list_val;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2979 eval_internal(context, list_val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2980 result = list_val.is_member(val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2981
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2982 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2983 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2984 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2985
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2986 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2987 CdlListExpressionBody::is_member(CdlEvalContext& context, cdl_int val)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2988 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2989 CYG_REPORT_FUNCNAMETYPE("CdlListExpression::is_member (int)", "result %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2990 CYG_REPORT_FUNCARG3XV(this, &context, (int) val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2991 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2992 CYG_PRECONDITION_CLASSOC(context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2993
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2994 bool result = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2995 CdlListValue list_val;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2996 eval_internal(context, list_val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2997 result = list_val.is_member(val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2998
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	2999 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3000 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3001 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3002
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3003 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3004 CdlListExpressionBody::is_member(CdlEvalContext& context, double val)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3005 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3006 CYG_REPORT_FUNCNAMETYPE("CdlListExpression::is_member (double)", "result %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3007 CYG_REPORT_FUNCARG2XV(this, &context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3008 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3009 CYG_PRECONDITION_CLASSOC(context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3010
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3011 bool result = false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3012 CdlListValue list_val;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3013 eval_internal(context, list_val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3014 result = list_val.is_member(val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3015
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3016 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3017 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3018 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3019
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3020 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3021 //{{{ Misc
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3022
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3023 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3024
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3025 std::string
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3026 CdlListExpressionBody::get_original_string() const
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3027 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3028 CYG_REPORT_FUNCNAME("CdlListExpression::get_original_string");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3029 CYG_REPORT_FUNCARG1XV(this);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3030 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3031
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3032 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3033 return expression_string;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3034 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3035
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3036 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3037
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3038 //}}}
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3039 //{{{ CdlGoalExpression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3040
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3041 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3042 // Constructors etc. are pretty much as per ordinary and list
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3043 // expressions. Most of the work is done in the private base class.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3044
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3045 CdlGoalExpressionBody::CdlGoalExpressionBody()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3046 : CdlExpressionBody()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3047 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3048 CYG_REPORT_FUNCNAME("CdlGoalExpression::default_constructor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3049 CYG_REPORT_FUNCARG1XV(this);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3050
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3051 expression_string = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3052 cdlgoalexpressionbody_cookie = CdlGoalExpressionBody_Magic;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3053 CYGDBG_MEMLEAK_CONSTRUCTOR();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3054
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3055 CYG_POSTCONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3056 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3057 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3058
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3059 CdlGoalExpressionBody::CdlGoalExpressionBody(const CdlGoalExpressionBody& original)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3060 : CdlExpressionBody(original)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3061 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3062 CYG_REPORT_FUNCNAME("CdlGoalExpression:: copy constructor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3063 CYG_REPORT_FUNCARG2XV(this, &original);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3064 CYG_INVARIANT_CLASSOC(CdlGoalExpressionBody, original);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3065
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3066 expression_string = original.expression_string;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3067 cdlgoalexpressionbody_cookie = CdlGoalExpressionBody_Magic;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3068 CYGDBG_MEMLEAK_CONSTRUCTOR();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3069
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3070 CYG_POSTCONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3071 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3072 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3073
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3074 CdlGoalExpressionBody::~CdlGoalExpressionBody()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3075 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3076 CYG_REPORT_FUNCNAME("CdlGoalExpression:: destructor");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3077 CYG_REPORT_FUNCARG1XV(this);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3078 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3079
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3080 cdlgoalexpressionbody_cookie = CdlGoalExpressionBody_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3081 expression_string = "";
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3082 CYGDBG_MEMLEAK_DESTRUCTOR();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3083
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3084 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3085 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3086
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3087 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3088 // Parsing. A goal expression acts a bit like a list expression with
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3089 // implicit && operators between the various expressions. It could be
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3090 // implemented as a vector of expressions (which might make diagnostics
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3091 // easier) but it is almost as easy to derive a goal expression from
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3092 // an ordinary one.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3093
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3094 CdlGoalExpression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3095 CdlGoalExpressionBody::parse(std::string data)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3096 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3097 CYG_REPORT_FUNCNAMETYPE("CdlGoalExpression::parse", "result %p");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3098
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3099 CdlGoalExpression result = new CdlGoalExpressionBody;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3100
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3101 try {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3102 int index = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3103 CdlExprOp op = CdlExprOp_Invalid;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3104 int end_index = 0;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3105
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3106 // Parse the first expression in the data.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3107 CdlExpressionBody::continue_parse(result, data, index, op, end_index);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3108
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3109 // At this stage we have reached end-of-data or we should be
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3110 // at the start of another expression - any binary or ternary
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3111 // operands would have been subsumed in the previous expression.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3112 // We need to keep adding && operators and new expressions until
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3113 // end-of-data.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3114 while (CdlExprOp_EOD != op) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3115 op = CdlExprOp_And;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3116 CdlExpressionBody::continue_parse(result, data, index, op, end_index);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3117 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3118 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3119 catch(...) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3120 delete result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3121 throw;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3122 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3123
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3124 // Keep track of the original expression string for diagnostics purposes
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3125 result->expression_string = data;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3126 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3127 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3128 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3129
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3130 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3131 void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3132 CdlGoalExpressionBody::eval(CdlEvalContext& context, bool& result)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3133 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3134 CYG_REPORT_FUNCNAME("CdlGoalExpression::eval");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3135 CYG_REPORT_FUNCARG2XV(this, &context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3136 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3137 CYG_PRECONDITION_CLASSOC(context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3138
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3139 eval_internal(context, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3140
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3141 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3142 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3143
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3144 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3145 CdlGoalExpressionBody::eval(CdlEvalContext& context)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3146 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3147 CYG_REPORT_FUNCNAMETYPE("CdlGoalExpression::eval", "result %d");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3148 CYG_REPORT_FUNCARG2XV(this, &context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3149 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3150 CYG_PRECONDITION_CLASSOC(context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3151
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3152 bool result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3153 eval_internal(context, result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3154
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3155 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3156 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3157 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3158
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3159 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3160 // Provide access to the underlying CdlExpression object. This allows the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3161 // inference engine etc. to work out why a goal expression is failing
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3162
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3163 CdlExpression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3164 CdlGoalExpressionBody::get_expression()
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3165 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3166 CYG_REPORT_FUNCNAMETYPE("CdlGoalExpression::get_expression", "result %p");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3167 CYG_REPORT_FUNCARG1XV(this);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3168 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3169
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3170 CdlExpression result = this;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3171 CYG_REPORT_RETVAL(result);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3172 return result;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3173 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3174
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3175 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3176
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3177 bool
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3178 CdlGoalExpressionBody::check_this(cyg_assert_class_zeal zeal) const
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3179 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3180 if (CdlGoalExpressionBody_Magic != cdlgoalexpressionbody_cookie) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3181 return false;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3182 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3183 CYGDBG_MEMLEAK_CHECKTHIS();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3184
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3185 // There is no data specific to a goal expression, just let the
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3186 // underlying check_this() member do its stuff.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3187
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3188 return inherited::check_this(zeal);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3189 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3190
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3191 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3192
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3193 std::string
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3194 CdlGoalExpressionBody::get_original_string() const
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3195 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3196 CYG_REPORT_FUNCNAME("CdlGoalExpression::get_original_string");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3197 CYG_REPORT_FUNCARG1XV(this);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3198 CYG_PRECONDITION_THISC();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3199
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3200 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3201 return expression_string;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3202 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3203
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3204 // ----------------------------------------------------------------------------
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3205
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3206 void
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3207 CdlGoalExpressionBody::eval_internal(CdlEvalContext& context, bool& result)
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3208 {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3209 CYG_REPORT_FUNCNAME("CdlGoalExpression::eval_internal");
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3210 CYG_REPORT_FUNCARG2XV(this, &context);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3211 // The assertions are all done in the calling code
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3212
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3213 // Start by evaluating the underlying expression
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3214 CdlSimpleValue val;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3215 try {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3216 inherited::eval_internal(context, val);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3217
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3218 // The evaluation succeeded. Do we have an integer, a string, ...?
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3219 if (val.has_integer_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3220 result = (0 != val.get_integer_value());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3221 } else if (val.has_double_value()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3222 result = (0.0 != val.get_double_value());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3223 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3224 result = ("" != val.get_value());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3225 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3226
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3227 // If there is an EvalException conflict for this property, it is no longer applicable
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3228 if ((0 != context.transaction) && (0 != context.node) && (0 != context.property)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3229 context.transaction->clear_conflicts(context.node, context.property,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3230 &CdlConflict_EvalExceptionBody::test);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3231 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3232
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3233 } catch(CdlEvalException e) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3234 if ((0 != context.transaction) && (0 != context.node) && (0 != context.property)) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3235 CdlConflict conflict = context.transaction->get_conflict(context.node, context.property,
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3236 &CdlConflict_EvalExceptionBody::test);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3237 if (0 == conflict) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3238 CdlConflict_EvalExceptionBody::make(context.transaction, context.node, context.property, e.get_message());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3239 } else {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3240 CdlConflict_EvalException eval_conf = dynamic_cast<CdlConflict_EvalException>(conflict);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3241 CYG_ASSERTC(0 != eval_conf);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3242 if (eval_conf->get_explanation() != e.get_message()) {
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3243 // Replace the conflict object. Higher level can detect this.
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3244 context.transaction->clear_conflict(conflict);
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3245 CdlConflict_EvalExceptionBody::make(context.transaction, context.node, context.property, e.get_message());
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3246 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3247 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3248 throw;
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3249 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3250 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3251
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3252 CYG_REPORT_RETURN();
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3253 }
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3254
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: diff changeset	3255 //}}}

Mercurial > flash_v2

annotate host/libcdl/expr.cxx @ 159:511f4dc167f6