/*
  $Id: utility.cpp,v 1.1.1.1 2005/07/07 15:05:59 oflebbe Exp $

  Copyright (C) 2003 Olaf Flebbe, Science and Computing AG
  o.flebbe@science-computing.de

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/
#include <sstream>
#include <algorithm>

#include "utility.h"

mystring itos( int a) {
	std::wstringstream ostr;

	ostr << a;
	return ostr.str();
}

mystring convertSlashes( const mystring& input) {
	mystring tmpInput = input;
    // replace / by \ -
	std::replace( tmpInput.begin(), tmpInput.end(), L'/', L'\\');
	// collapse \\ to \ --
	mystring::size_type a;
	
	while ((a = tmpInput.find( L"\\\\")) != mystring::npos) {
		tmpInput.replace( a, 2, L"\\");
	}
	return tmpInput;
}

mystring searchAndReplace( const mystring& inputString, const mystring& registryKey, Registry &reg, FILE *fp) {
	mystring tmpInputString = inputString;
	int i = 0;
	while (reg.exists( registryKey + itos( i))) {
		stringList searchReplace = reg.getValues( registryKey + itos( i));
		if (searchReplace.size() != 2) {
			if (fp) {
				fprintf( fp, "registry key prependpath %d invalid\n", i);
			}
			continue;
		}
		mystring searchString = searchReplace.front();
		searchReplace.pop_front();
		mystring replaceString = searchReplace.front();
		if (tmpInputString.size() < searchString.size())
			continue;
		// check whether search matches
		if (std::equal( searchString.begin(), searchString.end(), tmpInputString.begin())) {
			tmpInputString.replace( 0, searchString.size(), replaceString);
		}
		i++;
	}
	return tmpInputString;
}