90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
// Filename: cppExpressionParser.cxx
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// Created by: drose (25Oct99)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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#include "cppExpressionParser.h"
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#include "cppExpression.h"
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////////////////////////////////////////////////////////////////////
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// Function: CPPExpressionParser::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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CPPExpressionParser::
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CPPExpressionParser(CPPScope *current_scope, CPPScope *global_scope) :
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_current_scope(current_scope),
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_global_scope(global_scope)
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{
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_expr = NULL;
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}
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////////////////////////////////////////////////////////////////////
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// Function: CPPExpressionParser::Destructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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CPPExpressionParser::
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~CPPExpressionParser() {
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}
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////////////////////////////////////////////////////////////////////
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// Function: CPPExpressionParser::parse_expr
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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bool CPPExpressionParser::
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parse_expr(const string &expr) {
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if (!init_const_expr(expr)) {
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cerr << "Unable to parse expression\n";
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return false;
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}
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_expr = parse_const_expr(this, _current_scope, _global_scope);
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return get_error_count() == 0;
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}
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////////////////////////////////////////////////////////////////////
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// Function: CPPExpressionParser::parse_expr
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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bool CPPExpressionParser::
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parse_expr(const string &expr, const CPPPreprocessor &filepos) {
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if (!init_const_expr(expr)) {
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cerr << "Unable to parse expression\n";
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return false;
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}
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copy_filepos(filepos);
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_expr = parse_const_expr(this, _current_scope, _global_scope);
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return get_error_count() == 0;
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}
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////////////////////////////////////////////////////////////////////
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// Function: CPPExpressionParser::output
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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void CPPExpressionParser::
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output(ostream &out) const {
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if (_expr == NULL) {
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out << "(null expr)";
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} else {
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out << *_expr;
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}
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}
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