def main():
import sys, PgenParser, pprint, DFAParser
# ____________________________________________________________
# Generate a test parser
grammarST = PgenParser.parseFile("Grammar")
pgenObj = PyPgen()
grammarObj = pgenObj(grammarST)
if "-py" in sys.argv:
print "# %s" % ("_" * 70)
print "# This was automatically generated by PyPgen."
print "# Hack at your own risk."
print
print "grammarObj =",
pprint.pprint(grammarObj)
if "-i" in sys.argv:
# __________________________________________________
# Parse some input
if len(sys.argv) > 1:
inputFile = sys.argv[1]
fileObj = open(inputFile)
else:
inputFile = "<stdin>"
fileObj = sys.stdin
tokenizer = StdTokenizer.StdTokenizer().tokenize(fileObj)
parseTree = DFAParser.parsetok(tokenizer, grammarObj, 257)
fileObj.close()
# __________________________________________________
# Show the result
if __BASIL__:
from basil.visuals.TreeBox import showTree
showTree(parseTree).mainloop()
else:
pprint.pprint(parseTree)
def _doParse (source, start):
"""_doParse()
Ignore the function behind the curtain! Even if it is kinda like the
CPython PyParser_SimpleParseString() (I think.)
"""
global pygrammar
tokenizer = PyTokenizer.PyTokenizer().tokenizeString(source)
return STType(DFAParser.parsetok(tokenizer, pygrammar, start))
