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/*============================================================================
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 "cmRemoveCommand.h"
// cmRemoveCommand
bool cmRemoveCommand
::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
{
if(args.size() < 1)
{
return true;
}
const char* variable = args[0].c_str(); // VAR is always first
// get the old value
const char* cacheValue
= this->Makefile->GetDefinition(variable);
// if there is no old value then return
if (!cacheValue)
{
return true;
}
// expand the variable
std::vector<std::string> varArgsExpanded;
cmSystemTools::ExpandListArgument(cacheValue, varArgsExpanded);
// expand the args
// check for REMOVE(VAR v1 v2 ... vn)
std::vector<std::string> argsExpanded;
std::vector<std::string> temp;
for(unsigned int j = 1; j < args.size(); ++j)
{
temp.push_back(args[j]);
}
cmSystemTools::ExpandList(temp, argsExpanded);
// now create the new value
std::string value;
for(unsigned int j = 0; j < varArgsExpanded.size(); ++j)
{
int found = 0;
for(unsigned int k = 0; k < argsExpanded.size(); ++k)
{
if (varArgsExpanded[j] == argsExpanded[k])
{
found = 1;
break;
}
}
if (!found)
{
if (value.size())
{
value += ";";
}
value += varArgsExpanded[j];
}
}
// add the definition
this->Makefile->AddDefinition(variable, value.c_str());
return true;
}
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