mirror of
https://github.com/mudabbir-ahmad/MYOL-TB2-prog3-Py.git
synced 2026-10-07 19:40:21 +00:00
29 lines
646 B
Python
29 lines
646 B
Python
import sys
|
|
from antlr4 import *
|
|
|
|
from week3Listener import week3Listener
|
|
from week3Lexer import week3Lexer
|
|
from week3Parser import week3Parser
|
|
|
|
from antlr4.tree.Trees import Trees
|
|
|
|
def main(argv):
|
|
if len(argv) == 1 :
|
|
InputStream = StdinStream()
|
|
else :
|
|
inpname = argv[1]
|
|
InputStream = FileStream(inpname)
|
|
|
|
# create lexer, token stream and parser using the selected input
|
|
lexer = week3Lexer(InputStream)
|
|
tokstream = CommonTokenStream(lexer)
|
|
parser = week3Parser(tokstream)
|
|
|
|
tree = parser.start()
|
|
|
|
print(Trees.toStringTree(tree, None, parser))
|
|
|
|
if __name__ == '__main__' :
|
|
main(sys.argv)
|
|
|