private void TryParseExpression()
{
InterpreterParser parser = new InterpreterParser();
ExecutedResult = parser.ParseExpression(Framework.SavedProgram);
StateButtonClicked(CalcState.EXE);
}
public void TestMethod1()
{
string s = "(13hh5)&(4)|(9)";
var interpreter = new InterpreterParser();
var result = InterpreterParser.Lex(s);
var res = InterpreterParser.Parse(result);
}
/// <summary>
/// 解释一个查询程序
/// </summary>
/// <param name="input">查询程序代码</param>
/// <returns>是否运行了语句</returns>
public bool Interpret(string input)
{
//新建一个输入流
stream = new AntlrInputStream(input + "\n");
//新建一个词法分析器
lexer = new InterpreterLexer(stream);
//新建一个词法符号缓冲区
tokens = new CommonTokenStream(lexer);
//新建一个语法分析器
parser = new InterpreterParser(tokens);
//针对程序规则，开始分析
var tree = parser.prog();
//清空栈
QueryStack.Clear();
ParamsStack.Clear();
ParamStack.Clear();
FunctionStack.Clear();
//输出解析结果
//Console.WriteLine(tree.ToStringTree(parser));
var walker = new ParseTreeWalker();
//遍历树并触发监听器
walker.Walk(this, tree);
return(true);
}
