sql.py 文件源码

def _get_lexer(self, lang):
        if lang.lower() == 'sql':
            return get_lexer_by_name('postgresql', **self.options)

        tries = [lang]
        if lang.startswith('pl'):
            tries.append(lang[2:])
        if lang.endswith('u'):
            tries.append(lang[:-1])
        if lang.startswith('pl') and lang.endswith('u'):
            tries.append(lang[2:-1])

        for l in tries:
            try:
                return get_lexer_by_name(l, **self.options)
            except ClassNotFound:
                pass
        else:
            # TODO: better logging
            # print >>sys.stderr, "language not found:", lang
            return None