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and subject line Fixed in latest auctex packages
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--- Begin Message ---
Package: preview-latex-style
Version: 0.9.1-1
Severity: normal
When the style file preview.sty is used with the options active and
textmath and the xy package is also loaded, the category code of @
unexpectedly changes to letter. This can lead to mysterious
results: e.g. I think that is why I have some wrong previews in
Emacs with preview-latex.
Without the package xy and/or the option textmath the category change does not
occur.
Below is a sample file proba.tex and the log file after "latex
proba.tex". The lines starting with '----' are not part of the
files.
The "\show @" commands writes the category of @ in the log file.
The log file shows that it is changed at \begin{document} time.
I guess that the category change is caused by \xyreuncatcodes in the 121st
line of preview.sty. I don't understand the code but this seems to be the
only space connected with package xy.
Here is a snippet of preview.sty with line numbers:
117- \DeclareOption{textmath}{%
118- \PreviewEnvironment{math}%
119- [EMAIL PROTECTED]@undefined \let#1=$%$
120- \fi\catcode`\$=\active
121: [EMAIL PROTECTED]
122- [EMAIL PROTECTED]@ship\([EMAIL PROTECTED] \)
123- [EMAIL PROTECTED]@[EMAIL PROTECTED]
124- [EMAIL PROTECTED]@textmathcheck}}{}}%
125- [EMAIL PROTECTED]@endaftergroup
126- [EMAIL PROTECTED]@gobbletwo\fi#2}}
Gabor Braun
------------ The file proba.tex ----------------
\documentclass{article}
\usepackage{xy}
\usepackage[active,textmath]{preview}
\show @
\begin{document}
\show @
\end{document}
------------- End of proba.tex -----------------
------------ The file proba.log ----------------
This is e-TeX, Version 3.14159-2.1 (Web2C 7.4.5) (format=latex 2005.5.29) 30
MAY 2005 18:52
entering extended mode
**proba.tex
(./proba.tex
LaTeX2e <2001/06/01>
Babel <v3.7h> and hyphenation patterns for american, german, ngerman, magyar,
n
ohyphenation, basque, czech, icelandic, slovak, slovene, loaded.
(/usr/share/texmf/tex/latex/base/article.cls
Document Class: article 2001/04/21 v1.4e Standard LaTeX document class
(/usr/share/texmf/tex/latex/base/size10.clo
File: size10.clo 2001/04/21 v1.4e Standard LaTeX file (size option)
)
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\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
)
(/usr/share/texmf/tex/generic/xypic/xy.sty
(/usr/share/texmf/tex/generic/xypic/xy.tex Bootstrap'ing: catcodes, docmode,
(/usr/share/texmf/tex/generic/xypic/xyrecat.tex)
(/usr/share/texmf/tex/generic/xypic/xyidioms.tex)
Xy-pic version 3.7 <1999/02/16>
Copyright (c) 1991-1998 by Kristoffer H. Rose <[EMAIL PROTECTED]>
Xy-pic is free software: see the User's Guide for details.
Loading kernel: messages; fonts; allocations: state,
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direction,
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\Direction=\count89
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utility macros; pictures: \xy, positions,
\swaptoks@@=\toks16
\connectobjectbox@@=\box28
objects,
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decorations;
kernel objects: directionals, circles, text; options; algorithms: directions,
edges, connections; Xy-pic loaded)
Package: xy 1999/02/16 Xy-pic version 3.7
)
(/usr/share/texmf/tex/latex/preview/preview.sty
Package: preview 2005/04/03 preview-latex 0.9.1
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)
> the character @.
l.5 \show @
?
No file proba.aux.
\openout1 = `proba.aux'.
LaTeX Font Info: Checking defaults for OML/cmm/m/it on input line 6.
LaTeX Font Info: ... okay on input line 6.
LaTeX Font Info: Checking defaults for T1/cmr/m/n on input line 6.
LaTeX Font Info: ... okay on input line 6.
LaTeX Font Info: Checking defaults for OT1/cmr/m/n on input line 6.
LaTeX Font Info: ... okay on input line 6.
LaTeX Font Info: Checking defaults for OMS/cmsy/m/n on input line 6.
LaTeX Font Info: ... okay on input line 6.
LaTeX Font Info: Checking defaults for OMX/cmex/m/n on input line 6.
LaTeX Font Info: ... okay on input line 6.
LaTeX Font Info: Checking defaults for U/cmr/m/n on input line 6.
LaTeX Font Info: ... okay on input line 6.
Preview: Fontsize 10pt
> the letter @.
l.7 \show @
?
(./proba.aux) )
Here is how much of TeX's memory you used:
1192 strings out of 95669
12286 string characters out of 1193311
71879 words of memory out of 1000001
4287 multiletter control sequences out of 10000+50000
4501 words of font info for 19 fonts, out of 500000 for 1000
19 hyphenation exceptions out of 1000
23i,0n,19p,180b,36s stack positions out of 1500i,500n,5000p,200000b,5000s
No pages of output.
------------------ End of proba.log ------------------------------
-- System Information
Debian Release: 3.0
Architecture: i386
Kernel: Linux gabor 2.6.9.20041228 #1 Tue Dec 28 17:03:16 CET 2004 i686
Locale: LANG=hu_HU.iso88592, LC_CTYPE=hu_HU.iso88592
+++-==============-==============-=====================================
ii tetex-base 2.0.2c-8 Basic library files of teTeX
ii tetex-bin 2.0.2-30 The teTeX binary files
ii tetex-extra 2.0.2c-8 Additional library files of teTeX
--- End Message ---
--- Begin Message ---
This bug has been fixed in latest auctex, which supersedes
preview-latex.
--
Ciao, Davide
--- End Message ---
