view ply-3.8/test/pkg_test6/parsing/calcparse.py @ 10938:09d53ad4fd49

<oerjan> learn `help [<command>] gives HackEgo\'s default help message, or help for a specific command. Or currently possibly some other wisdom.
author HackBot
date Sun, 21 May 2017 00:38:03 +0000
parents 343ff337a19b
children
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# -----------------------------------------------------------------------------
# yacc_simple.py
#
# A simple, properly specifier grammar
# -----------------------------------------------------------------------------

from .calclex import tokens
from ply import yacc

# Parsing rules
precedence = (
    ('left','PLUS','MINUS'),
    ('left','TIMES','DIVIDE'),
    ('right','UMINUS'),
    )

# dictionary of names
names = { }

from .statement import *

from .expression import *

def p_error(t):
    print("Syntax error at '%s'" % t.value)

import os.path
parser = yacc.yacc(outputdir=os.path.dirname(__file__))