On 10/21/11 12:35 AM, "Jim Idle" <j...@temporal-wave.com> wrote:
Okay I see ... Thank you for point.
Hmm.
Jim, I think it will be better and simpler, if you will add right into
antlr3baserecognizer.c file this small function
void* recoverFromMismatchedToken_off(
pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_UINT32 ttype,
pANTLR3_BITSET_LIST follow)
{
mismatch( recognizer, ttype, follow );
return NULL;
}
And provide for us easy way to switch to it in the @parser::apifuncs
Then WE - users of ANTLR, will need just one line to switch.
This will be good yes? :-)
> You need to copy the mismatch locally or call it via a pointer (if it is in
> the interface, but I think it is not).
> Jim
> *From:* Ruslan Zasukhin [mailto:ruslan_zasuk...@valentina-db.com]
> *Sent:* Thursday, October 20, 2011 2:30 PM
> *To:* Jim Idle
> *Subject:* [C target][HEELP :-] About disable recovery ... Override
> recoverFromMismatchedToken() ... Linker error
>
>
>
> Hi Jim,
>
> So it seems I have realize (like prev person who did ask same)
> That this comment is out of date and mismatchRecover()
> was renamed to recoverFromMismatchedToken()
>
> -----------------------------------------------------------
> /// To turn off single token insertion or deletion error
> /// recovery, override mismatchRecover() and have it call
> /// plain mismatch(), which does not recover. Then any error
> /// in a rule will cause an exception and immediate exit from
> /// rule. Rule would recover by resynchronizing to the set of
> /// symbols that can follow rule ref.
> ///
> static void *
> match( pANTLR3_BASE_RECOGNIZER recognizer,
> ANTLR3_UINT32 ttype, pANTLR3_BITSET_LIST follow)
> -----------------------------------------------------------
>
>
> So I have try made this function as next:
>
> void* recoverFromMismatchedToken_off(
> pANTLR3_BASE_RECOGNIZER recognizer, ANTLR3_UINT32 ttype,
> pANTLR3_BITSET_LIST follow)
> {
> mismatch( recognizer, ttype, follow );
> return NULL;
> }
>
> @parser::apifuncs
> {
> // Install custom error message display
> //
> RECOGNIZER->displayRecognitionError = vdb_BuildRecognitionErrorStr;
> RECOGNIZER->recoverFromMismatchedToken = recoverFromMismatchedToken_off;
> .......
>
>
> ==========================================
> *PROBLEM IS:
> *
> Method match() is declared as static in the antlr3baserecognizer.c
> So linker of course give us error.
>
> Then I wonder:
> why comment says that we must call mismatch() ?
> how ??
>
>
> We should change sources of ANTLR3 ? I hope not.
> But so far I do not see other way ...
> Static method is static method ...
>
>
--
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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