[antlr-interest] Rewriting trees

[Maassen, H.A.M.]

Alright, ignore that. It's still not working. I'm fresh out of ideas. Here's the whole grammar:

options {
 language = "CSharp";
}

// ______________________________________________________________________

class MyLexer extends Lexer;
options { k = 2; 
          caseSensitive = false;
          caseSensitiveLiterals = false;
          charVocabulary='\u0000'..'\uFFFE';
        }

ID: ('a'..'z')+;

WS
  : ( ' '
    | '\t'
    | '\f'
    
    // handle newlines
    | ( "\r\n"  // DOS
      | '\r'    // Macintosh
      | '\n'    // Unix
      )  
      { newline(); }
    )
    { $setType(Token.SKIP); }
  ;   

// ______________________________________________________________________
 
 
class MyParser extends Parser;
options
{ k = 1;
  buildAST = true;
}

program
     : "begin"^ (ID | program)* "end"!
     ;

// ______________________________________________________________________


class MyWalker extends TreeParser;
options
{ buildAST = true; }

tokens
{ V; }

program
     : #("begin" (program)*)
     |! ID
       { ## = #([V, "ID"]); }    // <--- generates Invalid AST Node Type error
     ;
     
HELP! ;)

Regards, Harald Maassen



 
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