66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
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/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#include "cmMathCommand.h"
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#include "cmExprParserHelper.h"
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//----------------------------------------------------------------------------
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bool cmMathCommand::InitialPass(std::vector<std::string> const& args)
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{
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if ( args.size() < 1 )
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{
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this->SetError("must be called with at least one argument.");
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return false;
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}
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const std::string &subCommand = args[0];
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if(subCommand == "EXPR")
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{
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return this->HandleExprCommand(args);
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}
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std::string e = "does not recognize sub-command "+subCommand;
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this->SetError(e.c_str());
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return false;
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}
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//----------------------------------------------------------------------------
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bool cmMathCommand::HandleExprCommand(std::vector<std::string> const& args)
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{
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if ( args.size() != 3 )
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{
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this->SetError("EXPR called with incorrect arguments.");
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return false;
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}
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const std::string& outputVariable = args[1];
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const std::string& expression = args[2];
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cmExprParserHelper helper;
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if ( !helper.ParseString(expression.c_str(), 0) )
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{
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std::string e = "cannot parse the expression: \""+expression+"\": ";
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e += helper.GetError();
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this->SetError(e.c_str());
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return false;
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}
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char buffer[1024];
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sprintf(buffer, "%d", helper.GetResult());
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m_Makefile->AddDefinition(outputVariable.c_str(), buffer);
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return true;
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}
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