def setSyntax(self, syntax):
        """Choose smart indentation algorithm according to syntax"""
        self._smartIndenter = self._chooseSmartIndenter(syntax)
def _patsplit(pattern, default):
    """Split a string into the optional pattern kind prefix and the actual
    pattern."""
    if ":" in pattern:
        kind, pat = pattern.split(":", 1)
        if kind in allpatternkinds:
            return kind, pat
    return default, pattern