Question

Hopefully this is a really quick one 😉 I have written a lexer / parser specification in ANTLR3, and am targeting the CSharp2 target. The generated code works correctly, but I can’t get ANTLR to put the C# output into a namespace.

The relevant section of the Grammar file is as follows:

grammar MyGrammar;  options {     language = CSharp2;     output = AST;     ASTLabelType = CommonTree; } 

To generate the correct namespace, I have tried:

@namespace { MyNamespace } 

and

@lexer::namespace { MyNamespace } @parser::namespace { MyNamespace } 

but both of these generate errors, claiming that the file has no rules.

Any help is appreciated.

Answer 1

I use this for a combined lexer and parser (and it generates the namespace correctly):

grammar Test;  options {     language=CSharp2; }  @lexer::namespace {     My.Name.Space }  @parser::namespace {     My.Name.Space }   DIGIT   :   '0'..'9';  simple  :    DIGIT EOF; 

So i wonder why your version didn’t work – maybe you want to try this simple example and see if it works for you.