Re: error-tokens and locations?

[Ian Badcoe]

Hi,
        Apparently this still didn't go through, so once-again apologies 
for multiple copies.

        I should have also mentioned it was bison 1.875b and the cygwin port.

        Ian B

At 20:11 04/11/2003 +0000, Ian Badcoe wrote:
> Hi, sorry if you see multiple copies but the first disappeared without trace,
>
>         I think this may be a bug, but I'm not 100%, so I thought I'd ask 
> here first.
>
>         I have a grammar with some error productions, and in the actions 
> I try to pass the location of the error token into a support routine so 
> that I can give nice error messages.
>
>         Mostly this works, but for one or two of the productions I get 
> silly locations.
>
>         Investigating a bit further, I redefined YYLLOC_DEFAULT so that 
> it could print me some diagnostics and it's sometimes getting called with 
> num == 0.  I'm fairly sure the default definition cannot handle that either.
>
>         So, my question is should I be able to use the locations of error 
> tokens?  I haven't seen anything which suggests not, in fact I'd think it 
> the most common use for them.
>
>         If it should work, then it may be a bug.  I can post a smallish 
> demonstration here if anybody needs it, or I could go straight over to 
> the bugs list.
>
>         Thanks,
>                 Ian B
> Free transport into the future, while you wait.
>
>
>
> _______________________________________________
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Free transport into the future - while you wait.