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<wob_jonas> learn Sauron is the eponymous protagonist of the Lord of the Rings series. He serves primarily as narrator and the main driver of the plot. His heroic exploits include the resurrection of the Kings of Men and the conquest of the racists of Gondor. He now leads the Illuminati from his pyramid fort /\xea\x99\xa9\\ .
author HackBot
date Sat, 02 Sep 2017 18:01:47 +0000
parents 343ff337a19b
children
line wrap: on
line source

import sys

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

from ply import lex, yacc

t_A = 'A'
t_B = 'B'
t_C = 'C'

tokens = ('A', 'B', 'C')

the_lexer = lex.lex()

def t_error(t):
    pass

def p_error(p):
    pass

def p_start(t):
    '''start : A nest C'''
    pass

def p_nest(t):
   '''nest : B'''
   print(t[-1])

the_parser = yacc.yacc(debug = False, write_tables = False)

the_parser.parse('ABC', the_lexer)
the_parser.parse('ABC', the_lexer, tracking=True)
the_parser.parse('ABC', the_lexer, tracking=True, debug=1)