136     def __init__(self, buf, offset=0, path=None):  argument
147         self.end = offset
206     def decode_oct(buf, offset, start, end):  argument
211             raise LexerError(buf, offset, 'bad octal escape sequence')
215             raise LexerError(buf, offset, 'bad octal escape sequence')
217             raise LexerError(buf, offset, 'bad octal escape sequence')
222     def decode_hex(buf, offset, start, end):  argument
227             raise LexerError(buf, offset, 'bad hex escape sequence')
231             raise LexerError(buf, offset, 'bad hex escape sequence')
235     def lex_interpreted_string(cls, buf, offset):  argument
249         pos = offset + 1
297     def lex_string(cls, buf, offset):  argument
309         char = buf[offset]
312                 end = buf.index('`', offset + 1)
313                 return (end + 1, buf[offset + 1 : end])
317             return cls.lex_interpreted_string(buf, offset)
318         raise LexerError(buf, offset, 'no string literal start character')
348     def lex(cls, buf, offset):  argument
361         match = cls.LEXER_MATCHER.match(buf, offset)
363             raise LexerError(buf, offset, 'unknown token')
367             end, literal = cls.lex_string(buf, offset)
371                 literal = buf[offset:end]