Why would you need to use a virtual token to issue an error? Jim
> -----Original Message----- > From: [email protected] [mailto:antlr-interest- > [email protected]] On Behalf Of Petteri Räty > Sent: Wednesday, May 25, 2011 11:49 AM > To: [email protected] > Subject: Re: [antlr-interest] Why stream name can't be printed out when > error occurs(ANTLR C)? > > On 05/24/2011 07:46 PM, Jim Idle wrote: > > There can be multiple streams and you should reallty be using the > file > > name in the filestream, which you get from the token. Originally, we > > could not get back to the filestream from the token and now we can, > > hence the example error code uses what was available when I wrote it > > and also avoids (at the time) dealing with stringstreams that might > > not have a name (though now they always do of course). > > > > The problem seems related to virtual tokens. They seem to be missing > association back to the filestream. Is this a bug or a limitation? > > Breakpoint 1, antlr3RecognitionExceptionNew (recognizer=0x8100dd0) at > src/antlr3baserecognizer.c:382 > 382 if (tnode->token->input == NULL) > (gdb) p tnode->token->input > $2 = (pANTLR3_INPUT_STREAM) 0x0 > > Here tnode->token is a token that is declared in the tokens { } block > in the grammar header. > > Regards, > Petteri > > > List: http://www.antlr.org/mailman/listinfo/antlr-interest > Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your- > email-address List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.
