Re: [AUCTeX-devel] This ascender bug in dvipng mode...

[Jan-Åke Larsson]

David Kastrup wrote:
> So what is the string that you match with?  The complete special,
> front to back?  In that case, I might call this choice imprudent, but
> then it is not exactly fast that I noticed this...  You might have
> said something to that effect, and I might just not have said anything
> before I forgot it again.

Well, I implemented the behaviour of that exact bop-hook... and there is
no identifier "preview-tightpage" to match. This was written well before
any attempt to use dvipng in preview-latex, so perhaps neither you nor I
paid enough attention to it. Pity.

> If you indeed match the complete special, front to back,

Yep.

> well...  Perhaps then I should do two PostScript specials.  The first
> one doing all of the work, and then skipping over the second one.  And
> the second one being the old special...
>
> This would be one heck of a brutal hack, but reasonably easy to do.
> And we would remove it once Dvipng 1.5 is no longer widespread.

I have been thinking that -T tightpage is perhaps not a good thing after
all. The desicion should be made once, as it were, in the .tex file.
Probably it would be better to include an easily-identified string in
the new special that is constant over preview versions. It is also
possible to add a new dvipng-specific special, but I'd prefer not to do
that.

/JÅ