[antlr-interest] Rewriting a list of tokens to a list of custom tokens

[Jim Idle]

You have to rename the token is all...

KVOID: 'void' ;

Jim

> -----Original Message-----
> From: antlr-interest-bounces at antlr.org [mailto:antlr-interest-
> bounces at antlr.org] On Behalf Of Christian
> Sent: Thursday, October 20, 2011 3:50 AM
> To: antlr-interest at antlr.org
> Subject: Re: [antlr-interest] Rewriting a list of tokens to a list of
> custom tokens
>
> Works fine. Thanks, Jim !
>
> I solely did not have to use keywords for the rule name, because 'void'
> is a keyword in Java.
>
> Many greetings,
> Christian
>
> Am 19.10.2011 23:38, schrieb Jim Idle:
> > Sorry, I did not see that list thing, but I was trying to get you on
> > the right track.
> >
> > First, don't use literals
> > Put the tokens in subrules
> > Change the token type in subrule (I usually just set the type field
> in
> > the token, but that is a bit of a cheat) I don't have time to test
> > every code snippet that I post here
> >
> >
> > x: t1+=void (t2+=star)* -> ^(LIST $t1 $t2*) ;
> >
> > void: t=VOID -> TYPE[$t];
> > stat: t=STAR -> TYPE[$t];
> >
> > VOID: 'void';
> > STAR: '*';
> >
> > Jim
> >
> >
> >
> >> -----Original Message-----
> >> From: antlr-interest-bounces at antlr.org [mailto:antlr-interest-
> >> bounces at antlr.org] On Behalf Of Christian
> >> Sent: Wednesday, October 19, 2011 2:24 PM
> >> To: antlr-interest at antlr.org
> >> Subject: Re: [antlr-interest] Rewriting a list of tokens to a list
> of
> >> custom tokens
> >>
> >> No, your solution still generates invalid java code for me. Did you
> >> test your solution? The TYPE token does not accept a list as
> parameter.
> >> It is a simple token defined within the token block at the top of
> the
> >> grammar.
> >> It seems that the construction of an implicit list is only possible
> >> for rules and read token within the rule, but not for imaginary
> >> tokens. I hope I am wrong.
> >>
> >> Please make more solution suggestions.
> >>
> >> Am 19.10.2011 17:40, schrieb Jim Idle:
> >>> t1+='void' (t2+='*')* -> ^(LIST TYPE[$t1]+ TYPE[$t2]+)
> >>>
> >>> By interpolating from your question. At least, that should get you
> >>> on the right track.
> >>>
> >>>
> >>> Jim
> >>>
> >>>> -----Original Message-----
> >>>> From: antlr-interest-bounces at antlr.org [mailto:antlr-interest-
> >>>> bounces at antlr.org] On Behalf Of Christian
> >>>> Sent: Wednesday, October 19, 2011 5:40 AM
> >>>> To: antlr-interest at antlr.org
> >>>> Subject: [antlr-interest] Rewriting a list of tokens to a list of
> >>>> custom tokens
> >>>>
> >>>> Hello ANTLR community,
> >>>>
> >>>> I want to get
> >>>>
> >>>>     t+='void' (t+='*')*
> >>>>
> >>>> to a list of a custom token type, say TYPE. That is, each
> >>>> element/token of the list should change its original type to the
> >> type TYPE.
> >>>> The following approach does not work because invalid java code is
> >>>> generated:
> >>>>
> >>>>     t+='void' (t+='*')* -> ^(TYPE[$t]+)
> >>>>
> >>>> The following implicit list generation works fine, however each
> >>>> element retains its original type:
> >>>>
> >>>>     t+='void' (t+='*')* -> ^($t+)
> >>>>
> >>>> Can anyone tell me, whether and how this could be done?
> >>>>
> >>>> Thanks in advance,
> >>>> Christian
> >>>>
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