| # lex_state1.py | |
| # | |
| # Bad state declaration | |
| import sys | |
| sys.path.insert(0,"..") | |
| import ply.lex as lex | |
| tokens = [ | |
| "PLUS", | |
| "MINUS", | |
| "NUMBER", | |
| ] | |
| states = 'comment' | |
| 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", t | |
| t.lexer.begin('INITIAL') | |
| def t_error(t): | |
| pass | |
| import sys | |
| lex.lex() | |