view ply-3.8/test/lex_state_norule.py @ 11243:5c41fb3f6567

<oerjan> # Stolen from Roger9//`learn Bureaucracy (from French bureau, "burrow") is a political system in which squirrels rule the nation, and burrow their nuts.
author HackBot
date Wed, 22 Nov 2017 00:43:46 +0000
parents 343ff337a19b
children
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# lex_state_norule.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'),
          ('example', '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()