CMake/Source/cmFindProgramRule.cxx

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2001-01-11 22:55:47 +03:00
/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2000 National Library of Medicine
All rights reserved.
See COPYRIGHT.txt for copyright details.
=========================================================================*/
#include "cmFindProgramRule.h"
#include <stdlib.h>
#include <stdio.h>
static void GetPath(std::vector<std::string>& path)
{
#if defined(_WIN32) && !defined(__CYGWIN__)
char* pathSep = ";";
#else
char* pathSep = ":";
#endif
std::string pathEnv = getenv("PATH");
std::string::size_type start =0;
bool done = false;
while(!done)
{
std::string::size_type endpos = pathEnv.find(pathSep, start);
if(endpos != std::string::npos)
{
path.push_back(pathEnv.substr(start, endpos-start));
start = endpos+1;
}
else
{
done = true;
}
}
}
// cmFindProgramRule
bool cmFindProgramRule::Invoke(std::vector<std::string>& args)
{
if(args.size() < 2 )
{
this->SetError("called with incorrect number of arguments");
return false;
}
std::vector<std::string> path;
GetPath(path);
std::vector<std::string>::iterator i = args.begin();
const char* define = (*i).c_str();
i++;
for(; i != args.end(); ++i)
{
for(int k=0; k < path.size(); k++)
{
std::string tryPath = path[k];
tryPath += "/";
tryPath += *i;
#ifdef _WIN32
tryPath += ".exe";
#endif
if(cmSystemTools::FileExists(tryPath.c_str()))
{
m_Makefile->AddDefinition(define, tryPath.c_str());
return true;
}
}
}
return false;
}