[antlr-interest] Tree parser

[Johannes Luber]

rkevinburton at charter.net schrieb:
> it returns void. The rule in the grammar is:
> 
> program
> 	: statement*
> 	;
> 
> Kevin

I need to look at the grammar itself. Can you send me your version 
privately?

Johannes
> ---- Johannes Luber <jaluber at gmx.de> wrote: 
>> rkevinburton at charter.net schrieb:
>>> There must be some changes to the grammar as well. The lines:
>>>
>>>     	ECMAScriptWalker walker = new ECMAScriptWalker(nodes); 
>>>      	RuleReturnScope rs = walker.program(); 
>>>     	Console.Out.WriteLine(rs.Template.ToString()); 
>>>
>>> It seems that my walker start rule does not return RuleReturnScope.
>>>
>>> Kevin
>> What does program() return then?
>>
>> Johannes
>>> ---- Johannes Luber <jaluber at gmx.de> wrote: 
>>>> rkevinburton at charter.net schrieb:
>>>>> I would like to generate a tree parser. Unfortunateliy the ANTLR book has very little to say of the issue (or I just don't know where to look) and the sample grammars that I see seem to implement the 'walker' different from the way ANTLR does it now. For example in the CSharp grammar there is syntax like (the 'walker grammar names are different):
>>>>>
>>>>>                CSharpwalker = new CSharpWalker();
>>>>>                 walker.setASTFactory(new ASTNodeFactory());
>>>>>                 CSharpParser.initializeASTFactory(walker.getASTFactory());
>>>>>
>>>>> where the constructor for the waler no longer takes '0' arguments. There isn't a method 'setASTFactory' and there also isn't a method 'initializedASTFactory'. If I have a TreeParser grammar how do I integrate it with the parser?
>>>>>
>>>>> Thank you.
>>>>>
>>>>> Kevin
>>>>>
>>>> I don't know where the syntax above comes actually from, but my own tree 
>>>> grammar used a driver like this:
>>>>
>>>> CSharpParser.grammarDef_return r = parser.startRule();
>>>> CommonTree r0 = ((CommonTree) r.tree);
>>>> CommonTreeNodeStream nodes = new CommonTreeNodeStream(r0);
>>>> nodes.TokenStream = tokens;
>>>> CSharpGenerator walker = new CSharpGenerator(nodes);
>>>> RuleReturnScope r1 = walker.startRule();
>>>> Console.Out.WriteLine(r1.Template.ToString());
>>>>
>>>> Hope this helps
>