CMake/Source/cmCLocaleEnvironmentScope.cxx

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/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2015 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 "cmCLocaleEnvironmentScope.h"
#include "cmSystemTools.h"
#include <sstream>
cmCLocaleEnvironmentScope::cmCLocaleEnvironmentScope()
{
this->SetEnv("LANGUAGE", "");
this->SetEnv("LC_MESSAGES", "C");
std::string lcAll = this->GetEnv("LC_ALL");
if(!lcAll.empty())
{
this->SetEnv("LC_ALL", "");
this->SetEnv("LC_CTYPE", lcAll);
}
}
std::string cmCLocaleEnvironmentScope::GetEnv(std::string const& key)
{
const char* value = cmSystemTools::GetEnv(key);
return value ? value : std::string();
}
void cmCLocaleEnvironmentScope::SetEnv(
std::string const& key, std::string const& value)
{
std::string oldValue = this->GetEnv(key);
this->EnvironmentBackup.insert(std::make_pair(key, oldValue));
if(value.empty())
{
cmSystemTools::UnsetEnv(key.c_str());
}
else
{
std::stringstream tmp;
tmp << key << "=" << value;
cmSystemTools::PutEnv(tmp.str());
}
}
cmCLocaleEnvironmentScope::~cmCLocaleEnvironmentScope()
{
for(backup_map_t::const_iterator i = this->EnvironmentBackup.begin();
i != this->EnvironmentBackup.end(); ++i)
{
std::stringstream tmp;
tmp << i->first << "=" << i->second;
cmSystemTools::PutEnv(tmp.str());
}
}