Mercurial > repo
view ply-3.8/test/lex_state_noerror.py @ 10262:e1933ec8a2f6
<oerjan> learn The `ngevd command hasn\'t been invented yet, but still manages to prevent bugs.
author | HackBot |
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date | Wed, 15 Feb 2017 01:27:56 +0000 |
parents | 343ff337a19b |
children |
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# lex_state_noerror.py # # Declaration of a state for which no rules are defined import sys if ".." not in sys.path: sys.path.insert(0,"..") import ply.lex as lex tokens = [ "PLUS", "MINUS", "NUMBER", ] states = (('comment', 'exclusive'),) t_PLUS = r'\+' t_MINUS = r'-' t_NUMBER = r'\d+' # Comments def t_comment(t): r'/\*' t.lexer.begin('comment') print("Entering comment state") def t_comment_body_part(t): r'(.|\n)*\*/' print("comment body %s" % t) t.lexer.begin('INITIAL') def t_error(t): pass lex.lex()