def eval_input(self, input): lexer = ExprLexer(input) token = CommonTokenStream(lexer) parser = ExprParser(token) tree = parser.prog() visitor = EvalExprVisitor() return visitor.visit(tree)
def eval_input(self, input): lexer = ExprLexer(input) token = CommonTokenStream(lexer) parser = ExprParser(token) tree = parser.prog() if self.doDebug: print(tree.toStringTree(recog=parser)) evalExprListener = EvalExprListener() evalExprListener.doDebug = self.doDebug walker = ParseTreeWalker() walker.walk(evalExprListener, tree) return evalExprListener.result