view ply-3.8/test/lex_state2.py @ 8102:291983a6a16e

<boily> le/rn morse/- .... . / .-- .- .-.. .-. ..- ... / .. ... / .- / .-.. .- .-. --. . / ..-. .-.. .. .--. .--. . .-. . -.. / -- .- .-. .. -. . / -- .- -- -- .- .-..
author HackBot
date Mon, 23 May 2016 20:51:28 +0000
parents 343ff337a19b
children
line wrap: on
line source

# lex_state2.py
#
# Bad state declaration

import sys
if ".." not in sys.path: sys.path.insert(0,"..")

import ply.lex as lex

tokens = [ 
    "PLUS",
    "MINUS",
    "NUMBER",
    ]

states = ('comment','example')

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()