/*============================================================================ CMake - Cross Platform Makefile Generator Copyright 2000-2009 Kitware, Inc., Insight Software Consortium Distributed under the OSI-approved BSD License (the "License"); see accompanying file Copyright.txt for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the License for more information. ============================================================================*/ #include "cmExprParserHelper.h" #include "cmSystemTools.h" #include "cmExprLexer.h" #include "cmMakefile.h" int cmExpr_yyparse( yyscan_t yyscanner ); // cmExprParserHelper::cmExprParserHelper() { this->FileLine = -1; this->FileName = 0; } cmExprParserHelper::~cmExprParserHelper() { this->CleanupParser(); } void cmExprParserHelper::SetLineFile(long line, const char* file) { this->FileLine = line; this->FileName = file; } int cmExprParserHelper::ParseString(const char* str, int verb) { if ( !str) { return 0; } //printf("Do some parsing: %s\n", str); this->Verbose = verb; this->InputBuffer = str; this->InputBufferPos = 0; this->CurrentLine = 0; this->Result = 0; yyscan_t yyscanner; cmExpr_yylex_init(&yyscanner); cmExpr_yyset_extra(this, yyscanner); int res = cmExpr_yyparse(yyscanner); cmExpr_yylex_destroy(yyscanner); if ( res != 0 ) { //str << "CAL_Parser returned: " << res << std::endl; //std::cerr << "When parsing: [" << str << "]" << std::endl; return 0; } this->CleanupParser(); if ( Verbose ) { std::cerr << "Expanding [" << str << "] produced: [" << this->Result << "]" << std::endl; } return 1; } void cmExprParserHelper::CleanupParser() { } int cmExprParserHelper::LexInput(char* buf, int maxlen) { //std::cout << "JPLexInput "; //std::cout.write(buf, maxlen); //std::cout << std::endl; if ( maxlen < 1 ) { return 0; } if ( this->InputBufferPos < this->InputBuffer.size() ) { buf[0] = this->InputBuffer[ this->InputBufferPos++ ]; if ( buf[0] == '\n' ) { this->CurrentLine ++; } return(1); } else { buf[0] = '\n'; return( 0 ); } } void cmExprParserHelper::Error(const char* str) { unsigned long pos = static_cast<unsigned long>(this->InputBufferPos); cmOStringStream ostr; ostr << str << " (" << pos << ")"; this->ErrorString = ostr.str(); } void cmExprParserHelper::SetResult(int value) { this->Result = value; }