Function Path_FindParentDirectoryRecursively

samples/shared/pathtools.cpp:505–527

----------------------------------------------------------------------------- Purpose: helper to find a directory upstream from a given path -----------------------------------------------------------------------------

// Purpose: helper to find a directory upstream from a given path
//-----------------------------------------------------------------------------
std::string Path_FindParentDirectoryRecursively( const std::string &strStartDirectory, const std::string &strDirectoryName )
{
	std::string strFoundPath = "";
	std::string strCurrentPath = Path_FixSlashes( strStartDirectory );
	if ( strCurrentPath.length() == 0 )
		return "";

	bool bExists = Path_Exists( strCurrentPath );
	std::string strCurrentDirectoryName = Path_StripDirectory( strCurrentPath );
	if ( bExists && stricmp( strCurrentDirectoryName.c_str(), strDirectoryName.c_str() ) == 0 )
		return strCurrentPath;

	while( bExists && strCurrentPath.length() != 0 )
	{
		strCurrentPath = Path_StripFilename( strCurrentPath );
		strCurrentDirectoryName = Path_StripDirectory( strCurrentPath );
		bExists = Path_Exists( strCurrentPath );
		if ( bExists && stricmp( strCurrentDirectoryName.c_str(), strDirectoryName.c_str() ) == 0 )
			return strCurrentPath;
	}

	return "";
}


//-----------------------------------------------------------------------------