private void parseBtn_Click(object sender, EventArgs e)
{
#if DEBUG && HELLO
String input = editor.Text;
ICharStream stream = CharStreams.fromstring(input);
ITokenSource lexer = new HelloLexer(stream);
ITokenStream tokens = new CommonTokenStream(lexer);
HelloParser parser = new HelloParser(tokens);
HelloCustomListener helloListener = new HelloCustomListener();
parser.r().EnterRule(helloListener);
#elif DEBUG && ADVANCED
String input = editor.Text;
ICharStream stream = CharStreams.fromstring(input);
ITokenSource lexer = new VisualBasic6Lexer(stream);
ITokenStream tokens = new CommonTokenStream(lexer);
VisualBasic6Parser parser = new VisualBasic6Parser(tokens);
IParseTree tree = parser.startRule();
ParseTreeWalker walker = new ParseTreeWalker();
VisualBasic6CustomListener listener = new VisualBasic6CustomListener();
walker.Walk(listener, tree);
//parser.startRule().EnterRule(listener);
#endif
}
static void Main(string[] args)
{
String input = @"package P
context A
inv:
let fact(n: var) = if n = 1 then n else n * fact(n - 1) endif;
let n = 5;
fact(n+1) = 720
inv:
let a = 6;
let b = 6;
a = b
endpackage";
ICharStream stream = CharStreams.fromstring(input);
ITokenSource lexer = new HelloLexer(stream);
ITokenStream tokens = new CommonTokenStream(lexer);
HelloParser parser = new HelloParser(tokens);
parser.BuildParseTree = true;
IParseTree tree = parser.oclFile();
HelloPrinter printer = new HelloPrinter();
//ParseTreeWalker.Default.Walk(printer, tree);
tree.Accept(printer);
Console.ReadLine();
}
void Start()
{
AntlrInputStream antlerStream = new AntlrInputStream("hello " + Name);
HelloLexer lexer = new HelloLexer(antlerStream);
CommonTokenStream tokenStream = new CommonTokenStream(lexer);
HelloParser parser = new HelloParser(tokenStream);
parser.r();
}
static void Main(string[] args)
{
var inputStream = new AntlrInputStream(Console.In);
var lexer = new HelloLexer(inputStream);
var commonTokenStream = new CommonTokenStream(lexer);
var parser = new HelloParser(commonTokenStream);
var graphContext = parser.r();
Console.WriteLine(graphContext.ToStringTree());
}
static void Main(string[] args)
{
var input = new AntlrInputStream("hello world");
var lexer = new HelloLexer(input);
var tokens = new CommonTokenStream(lexer);
var parser = new HelloParser(tokens);
var listener = new ErrorListener <IToken>();
parser.AddErrorListener(listener);
var tree = parser.r();
System.Console.WriteLine(listener.had_error ? "Didn't work" : "Worked");
}
