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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Insight Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "cmSetCommand.h"
// cmSetCommand
bool cmSetCommand::InitialPass(std::vector<std::string> const& args)
{
if(args.size() < 1 )
{
this->SetError("called with incorrect number of arguments");
return false;
}
// SET (VAR) // Removes the definition of VAR.
if (args.size() == 1)
{
m_Makefile->RemoveDefinition(args[0].c_str());
return true;
}
// here are the options
// SET (VAR)
// SET (VAR value )
// SET (VAR CACHE TYPE "doc String")
// SET (VAR value CACHE TYPE "doc string")
const char* variable = args[0].c_str(); // VAR is always first
std::string value; // optional
bool cache = false; // optional
bool force = false; // optional
cmCacheManager::CacheEntryType type = cmCacheManager::STRING; // required if cache
const char* docstring = 0; // required if cache
std::string::size_type cacheStart = 0;
// check for SET(VAR v1 v2 ... vn)
// and create
if(args.size() > 2)
{
if(args[1] != "CACHE" && args[2] != "CACHE")
{
value = args[1];
for(size_t i =2; i < args.size(); ++i)
{
value += ";";
value += args[i];
}
m_Makefile->AddDefinition(variable, value.c_str());
return true;
}
}
// look for FORCE argument
if (args.size() > 4 && args[args.size()-1] == "FORCE")
{
force = true;
}
if(args.size() == 2)
{
// SET (VAR value )
value= args[1];
}
else if(args.size() == 4 + (force ? 1 : 0))
{
// SET (VAR CACHE TYPE "doc String")
cache = true;
cacheStart = 1;
}
else if(args.size() == 5 + (force ? 1 : 0))
{
// SET (VAR value CACHE TYPE "doc string")
cache = true;
value = args[1];
cacheStart = 2;
}
else
{
std::string message;
message += "Syntax error in SET:\n";
message += "CACHE requires TYPE and document string SET command:\n";
message += "SET (";
for(std::vector<std::string>::const_iterator i = args.begin();
i != args.end(); ++i)
{
message += *i;
}
message += ")\n";
this->SetError(message.c_str());
return false;
}
if(cache)
{
if(args[cacheStart] != "CACHE")
{
std::string error = "Error in arguments to cache, expected CACHE found:";
error += args[cacheStart];
error += "\n";
this->SetError(error.c_str());
return false;
}
type = cmCacheManager::StringToType(args[cacheStart+1].c_str());
docstring = args[cacheStart+2].c_str();
}
// see if this is already in the cache
cmCacheManager::CacheIterator it =
m_Makefile->GetCacheManager()->GetCacheIterator(variable);
if(!it.IsAtEnd())
{
// if the set is trying to CACHE the value but the value
// is already in the cache and the type is not internal
// then leave now without setting any definitions in the cache
// or the makefile
if(cache && type != cmCacheManager::INTERNAL && !force)
{
return true;
}
}
// if it is meant to be in the cache then define it in the cache
if(cache)
{
m_Makefile->AddCacheDefinition(variable,
value.c_str(),
docstring,
type);
}
else
{
// add the definition
m_Makefile->AddDefinition(variable, value.c_str());
}
return true;
}
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