import sys
from antlr4 import *
from antlr4 import InputStream
from CSVLexer import CSVLexer
from CSVParser import CSVParser
if __name__ == '__main__':
if len(sys.argv) > 1:
input_stream = FileStream(sys.argv[1])
else:
input_stream = InputStream(sys.stdin.read())
lexer = CSVLexer(input_stream)
token_stream = CommonTokenStream(lexer)
parser = CSVParser(token_stream)
parser.buildParseTrees = False
parser.start()
