[antlr-interest] Tree parser
rkevinburton at charter.net
rkevinburton at charter.net
Thu Jul 31 14:59:20 PDT 2008
Changing tree to Tree works. Thank you.
Kevin
---- Johannes Luber <jaluber at gmx.de> wrote:
> rkevinburton at charter.net schrieb:
> > I tried this:
> >
> > program_return ret = parser.program();
> > CommonTree ct = ((CommonTree) ret.tree);
> >
> > But the C# compiler gives me an error:
> >
> > 'BsiServices.Parse.ECMAScriptParser.program_return.tree' is inaccessible due to its protection level
> >
> > What am I doing wrong?
> >
> > Thanks again.
> >
> > Kevin
>
> It could be that you have to change .tree to .Tree. I didn't check if
> the driver code is still uptodate. BTW, please look if changing the
> capitilization works before you write an email. :)
>
> 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
> >
>
More information about the antlr-interest
mailing list