def main(argv):
input_stream = FileStream(argv[1])
lexer = ExprLexer(input_stream)
stream = CommonTokenStream(lexer)
parser = ExprParser(stream)
parser.buildParseTrees = True
parser_tree = parser.prog()
expressoes = ConcreteExprListener()
ParseTreeWalker.DEFAULT.walk(expressoes, parser_tree)
for expressao in expressoes.values:
print('{} = {}'.format(expressao['expr'], expressao['value']))
__author__ = 'jszheng'
import sys
from antlr4 import *
from antlr4.InputStream import InputStream
from ExprLexer import ExprLexer
from ExprParser import ExprParser
if __name__ == '__main__':
parser = ExprParser(None)
parser.buildParseTrees = False
parser.memory = {} # how to add this to generated constructor?
line = sys.stdin.readline()
lineno = 1
while line != '':
line = line.strip()
#print(lineno, line)
istream = InputStream(line + "\n")
lexer = ExprLexer(istream)
lexer.line = lineno
lexer.column = 0
token_stream = CommonTokenStream(lexer)
parser.setInputStream(token_stream)
parser.stat()
line = sys.stdin.readline()
lineno += 1
