[antlr-interest] Some Problem with antlrv3

femto gary femtowin at gmail.com
Fri May 11 09:31:26 PDT 2007


Hi Terence, have you seen this letter?
resent it.

On 5/8/07, femtowin1 <femtowin1 at gmail.com> wrote:
> Hi Terence, sorry for not state the problem clearly, for point 1,
> just ignore the Rubyv3Parser(TokenStream input, Rubyv3Parser parent) constructor, assume we only only one
> construtor now: Rubyv3Parser(TokenStream input) , the problem
> is this constructor is generated and I can't add customization
> initialization code to it , actually I need is the following:
> public Rubyv3Parser(TokenStream input) {
>         super(input);
>           ((Rubyv3Lexer) input.getTokenSource()).setParser(this);
>     }
> but this constructor is auto generated, I just can't put the above
> code into members section cause when generating, there will be
> two same signature constructor which is compile error.
>
> for point 3, actually I need building a compiler,
> because ruby's double quote string has inner structure,
> you can put any statement inside #{}, so what I did is attach
> an expression to the token when lexing, so while walking the tree,
> I need to get the expression,
> expression returns[Expression e]
>        :        value=DOUBLE_QUOTE_STRING{e=((MyToken)$value.getToken()).getExpression();}
> the current implementation doesn't support specifying Token type in tree grammar.
> ______________________________________
> Sent from my www.pageflakes.com startpage
>


-- 
Best Regards
XRuby http://xruby.com
femto http://hi.baidu.com/femto


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