[antlr-interest] reuse() methos in 3.4 C runtime

Jim Idle jimi at temporal-wave.com
Thu Nov 17 15:19:10 PST 2011


yes

> -----Original Message-----
> From: Ruslan Zasukhin [mailto:ruslan_zasukhin at valentina-db.com]
> Sent: Thursday, November 17, 2011 12:21 PM
> To: Jim Idle; antlr-interest at antlr.org
> Subject: Re: [antlr-interest] reuse() methos in 3.4 C runtime
>
> On 6/24/11 7:49 PM, "Jim Idle" <jimi at temporal-wave.com> wrote:
>
> Hi Jim,
>
> I will send few letters now, but I will start with simple question to
> this your letter.
>
> Am I right, that we also in this loop should kill and create again
> TreeParser?
>
> Yes?
>
>
> > Because the documentation is not yet up to date, here is an example
> of
> > reusing the allocated memory in input streams and token streams:
> >
> >
> >
> >     for (i=0; i<iterations; i++)
> >    {
> >         // Run the parser.
> >         //
> >         psr->start(psr);
> >
> >         // --------------------------------------
> >         // Now reset everything for the next run.
> >         // Order of calls is important.
> >
> >         // Input stream can now be reused
> >         //
> >         input->reuse(input, sourceCode, sourceLen, sourceName);
> >
> >         // Reset the common token stream so that it will reuse its
> resources
> >         //
> >         tstream->reset(tstream);
> >
> >         // Reset the lexer (new function generated by antlr now)
> >         //
> >         lxr->reset(lxr);
> >
> >         // Reset the parser (new function generated by antlr now)
> >         //
> >         psr->reset(psr);
> >     }
>
>
>
>
> --
> Best regards,
>
> Ruslan Zasukhin
> VP Engineering and New Technology
> Paradigma Software, Inc
>
> Valentina - Joining Worlds of Information http://www.paradigmasoft.com
>
> [I feel the need: the need for speed]
>


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