| Server IP : 109.234.164.53 / Your IP : 216.73.216.110 Web Server : Apache System : Linux cervelle.o2switch.net 4.18.0-553.32.1.lve.el8.x86_64 #1 SMP Thu Dec 19 13:14:03 UTC 2024 x86_64 User : computer3 ( 1098) PHP Version : 7.1.33 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : OFF | Pkexec : OFF Directory : /opt/alt/python37/share/doc/alt-python37-pyparsing-doc/examples/ |
Upload File : |
# indentedGrammarExample.py
#
# Copyright (c) 2006,2016 Paul McGuire
#
# A sample of a pyparsing grammar using indentation for
# grouping (like Python does).
#
# Updated to use indentedBlock helper method.
#
from pyparsing import *
data = """\
def A(z):
A1
B = 100
G = A2
A2
A3
B
def BB(a,b,c):
BB1
def BBA():
bba1
bba2
bba3
C
D
def spam(x,y):
def eggs(z):
pass
"""
stmt = Forward()
suite = IndentedBlock(stmt)
identifier = Word(alphas, alphanums)
funcDecl = (
"def" + identifier + Group("(" + Optional(delimitedList(identifier)) + ")") + ":"
)
funcDef = Group(funcDecl + suite)
rvalue = Forward()
funcCall = Group(identifier + "(" + Optional(delimitedList(rvalue)) + ")")
rvalue << (funcCall | identifier | Word(nums))
assignment = Group(identifier + "=" + rvalue)
stmt << (funcDef | assignment | identifier)
module_body = OneOrMore(stmt)
print(data)
parseTree = module_body.parseString(data)
parseTree.pprint()