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Re: [AUCTeX-devel] Uh, what is this?

From: Jan-Ake Larsson
Subject: Re: [AUCTeX-devel] Uh, what is this?
Date: Wed, 29 Jun 2005 09:32:50 +0200
User-agent: Mozilla/5.0 (X11; U; SunOS sun4u; sv-SE; rv:1.7.7) Gecko/20050422

Let's try that again...

David Kastrup wrote:
> %<tightpage>  \special{!userdict 7{currentfile token not{stop}if 65781.76 div 
> }) pop}
> The last line quite befuddles me: I can't imagine that we ever had
> a "userdict 7 ..." string in our specials.  Would not
> \special{!)pop}
> be completely sufficient here?

Yes it would, except for one thing: dvipng-1.6 would complain about an
unknown special. I inserted the string needed for detection of the
preview-latex <= 0.9.1 tightpage option, that is "!userdict" followed
by a string containing "7{currentfile......div", the extra brace is to
make TeX happy. The tightpage flag inside dvipng will be set twice, but
that is all that will happen. It is after all a PostScript comment.
This way, the compatibility code would not need extra code within
dvipng, and is situated in one place only, thus easy to remove. But
perhaps I should have documented this in the PostScript comment?


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