Method ExtractFileExtension

neo/idlib/Str.cpp:1012–1033

==================== idStr::ExtractFileExtension ==================== */

====================
*/
void idStr::ExtractFileExtension( idStr &dest ) const {
	int pos;

	//
	// back up until a . or the start
	//
	pos = Length() - 1;
	while( ( pos > 0 ) && ( ( *this )[ pos - 1 ] != '.' ) ) {
		pos--;
		if( isDirSeparator( ( *this )[ pos ] ) ) { // DG: check for directory separator
			// no extension in the whole filename
			dest.Empty();
		} // DG end
	}

	if ( !pos ) {
		// no extension
		dest.Empty();
	} else {
		Right( Length() - pos, dest );
	}
}


/*