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# greeting.py
#
# Demonstration of the pyparsing module, on the prototypical "Hello, World!"
# example
#
# Copyright 2003, 2019 by Paul McGuire
#
import pyparsing as pp
# define grammar
greet = pp.Word(pp.alphas) + "," + pp.Word(pp.alphas) + pp.oneOf("! ? .")
# input string
hello = "Hello, World!"
# parse input string
print(hello, "->", greet.parseString(hello))
# parse a bunch of input strings
greet.runTests(
"""\
Hello, World!
Ahoy, Matey!
Howdy, Pardner!
Morning, Neighbor!
"""
)