Re: problem with cup

"Roni Hursti" <ronih@luukku.com>
31 Jul 2002 01:05:07 -0400

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problem with cup didelot@iie.cnam.fr (Xavier Didelot) (2002-07-15)
Re: problem with cup ronih@luukku.com (Roni Hursti) (2002-07-31)
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From: "Roni Hursti" <ronih@luukku.com>
Newsgroups: comp.compilers
Date: 31 Jul 2002 01:05:07 -0400
Organization: Elisa Internet customer
References: 02-07-044
Keywords: Java, parse
Posted-Date: 31 Jul 2002 01:05:07 EDT

> I have a little problem using cup. I need to have my program for
> example write something in a file in certain cases of the grammar. I
> have a rule looking like this :
>
> expr ::= true {: file.println("lol"); :}
>
> but how to make the variable file accessible to this part of the code
> ? this line of code will be in the cup$parser$actions class, so that
> it doesn't have access to anything... Or is there a way to give it a
> member and initialize it in the cup file ? (of course it would be easy
> to make it work by modifing the code generated by cup, but it's not my
> aim...)




Use action block like this


action code {:
        private File file;
:};


Best Regards


Roni

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