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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmRemoveCommand.h"
// cmRemoveCommand
bool cmRemoveCommand::InitialPass(std::vector<std::string> const& args,
cmExecutionStatus&)
{
if (args.empty()) {
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;
temp.insert(temp.end(), args.begin() + 1, args.end());
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.empty()) {
value += ";";
}
value += varArgsExpanded[j];
}
}
// add the definition
this->Makefile->AddDefinition(variable, value.c_str());
return true;
}
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