GNU bug report logs - #65628
Document preview fails with long filenames

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: John Holman <john.g.holman <at> gmail.com>
To: bug-auctex <at> gnu.org
Subject: Document preview fails with long filenames
Date: Wed, 30 Aug 2023 15:05:03 +0100

[Message part 1 (text/plain, inline)]

Hi. I'm not sure that the problem was captured in the log below created
by preview-report-bug so a few more details first:

Running auctex on windows 11 with MiKTeX

Test file contents (but most files containing maths seem to trigger the
problem)

\documentclass{article}
\begin{document}

\(x=y\)

\end{document}

Document preview works when the filename has no more than 22 characters,
e.g. test.tex, but fails with message "Ghostscript filter: No bounding box"
when the filename has more, e.g. 01234567890123456789012.tex. However
buffer preview always works.

When document preview fails the maths sections are replaced with the
roadworks signs indefinitely. The 01234567890123456789012.prv directory is
created
containing a temp folder containing a preview.dsc file but no png
images. The rungs.exe and mgs.exe processes don't exit until killed manually
or emacs is closed.

The contents of the *.. output* buffer are then

Running `Preview-LaTeX' on `012345678901234546789012' with ``pdflatex
 -file-line-error
 "\nonstopmode\nofiles\PassOptionsToPackage{active,tightpage,auctex}{preview}\AtBeginDocument{\ifx\ifPreview\undefined\RequirePackage[displaymath,floats,graphics,textmath,sections,footnotes]{preview}[2004/11/05]\fi}"
"\input" "\detokenize{" "012345678901234546789012.tex" "}"''
This is pdfTeX, Version 3.141592653-2.6-1.40.25 (MiKTeX 23.5) (preloaded
format=pdflatex.fmt)
 restricted \write18 enabled.
entering extended mode
LaTeX2e <2023-06-01> patch level 1
L3 programming layer <2023-08-11>

No auxiliary output files.

(012345678901234546789012.tex
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/base\article.cls
Document Class: article 2023/05/17 v1.4n Standard LaTeX document class
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/base\size10.clo))
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/l3backend\l3backend-pdf
tex.def)
No file 012345678901234546789012.aux.
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\preview.sty
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/luatex85\luatex85.sty)
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prtightpage.def)
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prauctex.def
No auxiliary output files.


(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prauctex.cfg))
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prfootnotes.def)
Preview: Fontsize 10pt
Preview: PDFoutput 1
)
012345678901234546789012.tex:4: Preview: Snippet 1 started.
<-><->

l.4 \(
      x=y\)
Preview: Tightpage -32891 -32891 32891 32891
012345678901234546789012.tex:4: Preview: Snippet 1
ended.(282168+127431x1593186
).
<-><->

l.4 \(x=y\)

[1{C:/Users/johng/AppData/Local/MiKTeX/fonts/map/pdftex/pdftex.map}] )
(see the transcript file for additional
information)<C:/Users/johng/AppData/Loc
al/Programs/MiKTeX/fonts/type1/public/amsfonts/cm/cmmi10.pfb><C:/Users/johng/Ap
pData/Local/Programs/MiKTeX/fonts/type1/public/amsfonts/cm/cmr10.pfb>
Output written on 012345678901234546789012.pdf (1 page, 17918 bytes).
Transcript written on 012345678901234546789012.log.

TeX Output exited as expected with code 1 at Wed Aug 30 14:49:41
Running `Preview-PDF2DSC' with ``pdf2dsc "012345678901234546789012.pdf"
"012345678901234546789012.prv/tmpqz9sI5"/preview.dsc''

Preview-PDF2DSC finished at Wed Aug 30 14:49:42
Running `Preview-Ghostscript' with
``"c:/Users/johng/AppData/Local/Programs/MiKTeX/miktex/bin/x64/rungs.exe"
^"-sOutputFile=012345678901234546789012.prv/tmpqz9sI5/pr1-^%d.png^" "-q"
"-dDELAYSAFER" "-dNOPAUSE" "-DNOPLATFONTS" "-dPrinted" "-dTextAlphaBits=4"
"-dGraphicsAlphaBits=4" "-sDEVICE=png16m" "-r106.74x106.68"''
Ghostscript filter: No bounding box

===

Emacs  : GNU Emacs 29.1 (build 2, x86_64-w64-mingw32)
 of 2023-08-02
Package: 13.2.1

Run buffer contents:

Running `Preview-LaTeX' on `012345678901234546789012' with ``pdflatex
 -file-line-error
 "\nonstopmode\nofiles\PassOptionsToPackage{active,tightpage,auctex}{preview}\AtBeginDocument{\ifx\ifPreview\undefined\RequirePackage[displaymath,floats,graphics,textmath,sections,footnotes]{preview}[2004/11/05]\fi}"
"\input" "\detokenize{" "012345678901234546789012.tex" "}"''
This is pdfTeX, Version 3.141592653-2.6-1.40.25 (MiKTeX 23.5) (preloaded
format=pdflatex.fmt)
 restricted \write18 enabled.
entering extended mode
LaTeX2e <2023-06-01> patch level 1
L3 programming layer <2023-08-11>

No auxiliary output files.

(012345678901234546789012.tex
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/base\article.cls
Document Class: article 2023/05/17 v1.4n Standard LaTeX document class
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/base\size10.clo))
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/l3backend\l3backend-pdf
tex.def)
No file 012345678901234546789012.aux.
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\preview.sty
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/luatex85\luatex85.sty)
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prtightpage.def)
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prauctex.def
No auxiliary output files.


(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prauctex.cfg))
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prfootnotes.def)
Preview: Fontsize 10pt
Preview: PDFoutput 1
)
012345678901234546789012.tex:4: Preview: Snippet 1 started.
<-><->

l.4 \(
      x=y\)
Preview: Tightpage -32891 -32891 32891 32891
012345678901234546789012.tex:4: Preview: Snippet 1
ended.(282168+127431x1593186
).
<-><->

l.4 \(x=y\)

[1{C:/Users/johng/AppData/Local/MiKTeX/fonts/map/pdftex/pdftex.map}] )
(see the transcript file for additional
information)<C:/Users/johng/AppData/Loc
al/Programs/MiKTeX/fonts/type1/public/amsfonts/cm/cmmi10.pfb><C:/Users/johng/Ap
pData/Local/Programs/MiKTeX/fonts/type1/public/amsfonts/cm/cmr10.pfb>
Output written on 012345678901234546789012.pdf (1 page, 17918 bytes).
Transcript written on 012345678901234546789012.log.

TeX Output exited as expected with code 1 at Wed Aug 30 14:44:32
Running `Preview-PDF2DSC' with ``pdf2dsc "012345678901234546789012.pdf"
"012345678901234546789012.prv/tmp3SwYcB"/preview.dsc''

Preview-PDF2DSC finished at Wed Aug 30 14:44:32
Running `Preview-Ghostscript' with
``"c:/Users/johng/AppData/Local/Programs/MiKTeX/miktex/bin/x64/rungs.exe"
^"-sOutputFile=012345678901234546789012.prv/tmp3SwYcB/pr1-^%d.png^" "-q"
"-dDELAYSAFER" "-dNOPAUSE" "-DNOPLATFONTS" "-dPrinted" "-dTextAlphaBits=4"
"-dGraphicsAlphaBits=4" "-sDEVICE=png16m" "-r106.74x106.68"''
Ghostscript filter: No bounding box


current state:
==============
(setq
 AUCTeX-version "13.2.1"
 LaTeX-command-style '((""
"%(PDF)%(latex) %(file-line-error) %(extraopts) %(output-dir) %S%(PDFout)")
  )
 image-types '(bmp svg webp png gif tiff jpeg xpm xbm pbm)
 preview-image-type 'png
 preview-image-creators '((dvipng (open preview-gs-open
preview-dvipng-process-setup)
  (place preview-gs-place) (close preview-dvipng-close))
 (png (open preview-gs-open) (place preview-gs-place)
  (close preview-gs-close))
 (jpeg (open preview-gs-open) (place preview-gs-place)
  (close preview-gs-close))
 (pnm (open preview-gs-open) (place preview-gs-place)
  (close preview-gs-close))
 (tiff (open preview-gs-open) (place preview-gs-place)
  (close preview-gs-close))
 )
 preview-dvipng-image-type 'png
 preview-dvipng-command "dvipng -picky -noghostscript %d -o
%m/prev%%03d.png"
 preview-pdf2dsc-command "pdf2dsc %(O?pdf) %m/preview.dsc"
 preview-gs-command
"c:/Users/johng/AppData/Local/Programs/MiKTeX/miktex/bin/x64/rungs.exe"
 preview-gs-options '("-q" "-dDELAYSAFER" "-dNOPAUSE" "-DNOPLATFONTS"
"-dPrinted"
 "-dTextAlphaBits=4" "-dGraphicsAlphaBits=4")
 preview-gs-image-type-alist '((png png "-sDEVICE=png16m")
  (dvipng png "-sDEVICE=png16m")
  (jpeg jpeg "-sDEVICE=jpeg") (pnm pbm "-sDEVICE=pnmraw")
  (tiff tiff "-sDEVICE=tiff12nc"))
 preview-fast-conversion t
 preview-prefer-TeX-bb nil
 preview-dvips-command "dvips -Pwww -i -E %d -o %m/preview.000"
 preview-fast-dvips-command "dvips -Pwww %d -o %m/preview.ps"
 preview-scale-function 'preview-scale-from-face
 preview-LaTeX-command '("%`%l
\"\\nonstopmode\\nofiles\\PassOptionsToPackage{"
("," . preview-required-option-list)
"}{preview}\\AtBeginDocument{\\ifx\\ifPreview\\undefined"
preview-default-preamble
"\\fi}\"%' \"\\detokenize{\" %(t-filename-only) \"}\"")
 preview-required-option-list '("active" "tightpage" "auctex"
(preview-preserve-counters "counters"))
 preview-preserve-counters nil
 preview-default-option-list '("displaymath" "floats" "graphics" "textmath"
"sections"
  "footnotes")
 preview-default-preamble '("\\RequirePackage[" ("," .
preview-default-option-list)
"]{preview}[2004/11/05]")
 preview-LaTeX-command-replacements nil
 preview-dump-replacements '(preview-LaTeX-command-replacements
("\\`\\([^ ]+\\)\\(?: +\\(?:\\(--?kanji[= ][^
]+\\)\\|\\(--?output-directory[= ][^ ]+\\)\\|-\\(?:[^
\\\"]\\|\\\\.\\|\"[^\"]*\"\\)*\\)\\)*\\(.*\\)\\'" "\\1 -ini \\2 \\3
-interaction=nonstopmode \"&\\1\" " preview-format-name ".ini \\4")
)
 preview-undump-replacements '(("\\`\\([^ ]+\\)\\(?: +\\(?:\\(--?kanji[=
][^ ]+\\)\\|\\(--?output-directory[= ][^ ]+\\)\\|-\\(?:[^
\\\"]\\|\\\\.\\|\"[^\"]*\"\\)*\\)\\)*.* \"\\\\input\" \"\\\\detokenize{\"
\\(.*\\) \"}\"\\'" "\\1 \\2 \\3 -interaction=nonstopmode -file-line-error "
preview-format-name " \"/AUCTEXINPUT{\" \\4 \"}\"")
  )
 preview-auto-cache-preamble 'ask
 preview-TeX-style-dir "c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex"
 )

Output from running
`c:/Users/johng/AppData/Local/Programs/MiKTeX/miktex/bin/x64/rungs.exe -h':
MiKTeX GPL Ghostscript 9.25 (2018-09-13)
Copyright (C) 2018 Artifex Software, Inc.  All rights reserved.
Usage: gs [switches] [file1.ps file2.ps ...]
Most frequently used switches: (you can use # in place of =)
 -dNOPAUSE           no pause after page   | -q       `quiet', fewer
messages
 -g<width>x<height>  page size in pixels   | -r<res>  pixels/inch resolution
 -sDEVICE=<devname>  select device         | -dBATCH  exit after last file
 -sOutputFile=<file> select output file: - for stdout, |command for pipe,
                                         embed %d or %ld for page #
Input formats: PostScript PostScriptLevel1 PostScriptLevel2
PostScriptLevel3 PDF
Default output device: display
Available devices:
   bbox bit bitcmyk bitrgb bitrgbtags bj10e bj200 bjc600 bjc800 bmp16 bmp16m
   bmp256 bmp32b bmpgray bmpmono bmpsep1 bmpsep8 cdeskjet cdj550 cdjcolor
   cdjmono declj250 deskjet devicen display djet500 djet500c eps2write
   eps9high eps9mid epson epsonc fpng gprf ibmpro ijs ink_cov inkcov
   jetp3852 jpeg jpegcmyk jpeggray laserjet lbp8 lj250 ljet2p ljet3 ljet3d
   ljet4 ljet4d ljetplus m8510 mswinpr2 necp6 nullpage pam pamcmyk32
   pamcmyk4 pbm pbmraw pclm pcx16 pcx24b pcx256 pcxcmyk pcxgray pcxmono
   pdfimage24 pdfimage32 pdfimage8 pdfwrite pgm pgmraw pgnm pgnmraw pj pjxl
   pjxl300 pkmraw plan planc plang plank planm planr plib plibc plibg plibk
   plibm png16 png16m png256 pngalpha pnggray pngmono pngmonod pnm pnmcmyk
   pnmraw ppm ppmraw ps2write psdcmyk psdcmykog psdrgb pxlcolor pxlmono
   r4081 spotcmyk st800 stcolor t4693d2 t4693d4 t4693d8 tek4696 tiff12nc
   tiff24nc tiff32nc tiff48nc tiff64nc tiffcrle tiffg3 tiffg32d tiffg4
   tiffgray tifflzw tiffpack tiffscaled tiffscaled24 tiffscaled32
   tiffscaled4 tiffscaled8 tiffsep tiffsep1 txtwrite uniprint xpswrite
Search path:
   C:/Users/johng/AppData/Local/Programs/MiKTeX/ghostscript/base ;
   C:/Users/johng/AppData/Local/Programs/MiKTeX/fonts ;
   %rom%Resource/Init/ ; %rom%lib/ ; c:/gs/gs9.25/Resource/Init ;
   c:/gs/gs9.25/lib ; c:/gs/gs9.25/Resource/Font ; c:/gs/fonts
Initialization files are compiled into the executable.
For more information, see c:/gs/gs9.25/doc/Use.htm.
Please report bugs to bugs.ghostscript.com.

[Message part 2 (text/html, inline)]

Message #8 received at 65628 <at> debbugs.gnu.org (full text, mbox):

From: David Kastrup <dak <at> gnu.org>
To: John Holman <john.g.holman <at> gmail.com>
Cc: 65628 <at> debbugs.gnu.org
Subject: Re: bug#65628: Document preview fails with long filenames
Date: Wed, 30 Aug 2023 19:35:13 +0200

John Holman <john.g.holman <at> gmail.com> writes:

> Hi. I'm not sure that the problem was captured in the log below created
> by preview-report-bug so a few more details first:
>
> Running auctex on windows 11 with MiKTeX
>
> Test file contents (but most files containing maths seem to trigger the
> problem)
>
> \documentclass{article}
> \begin{document}
>
> \(x=y\)
>
> \end{document}
>
> Document preview works when the filename has no more than 22 characters,
> e.g. test.tex, but fails with message "Ghostscript filter: No bounding box"
> when the filename has more, e.g. 01234567890123456789012.tex. However
> buffer preview always works.
>
> When document preview fails the maths sections are replaced with the
> roadworks signs indefinitely. The 01234567890123456789012.prv directory is
> created
> containing a temp folder containing a preview.dsc file but no png
> images. The rungs.exe and mgs.exe processes don't exit until killed manually
> or emacs is closed.
>
> The contents of the *.. output* buffer are then
>
> Running `Preview-LaTeX' on `012345678901234546789012' with ``pdflatex
>  -file-line-error
>  "\nonstopmode\nofiles\PassOptionsToPackage{active,tightpage,auctex}{preview}\AtBeginDocument{\ifx\ifPreview\undefined\RequirePackage[displaymath,floats,graphics,textmath,sections,footnotes]{preview}[2004/11/05]\fi}"
> "\input" "\detokenize{" "012345678901234546789012.tex" "}"''

Probably exceeding a total command line length of 256 characters or some
similar Windows restriction.  I also seem to remember that some Windows
file system or API limited the length of absolute filenames you could
access even when only using relative filenames, so the length of the
directory path you are in might also play a part here.

-- 
David Kastrup

Message #11 received at 65628 <at> debbugs.gnu.org (full text, mbox):

From: John Holman <john.g.holman <at> gmail.com>
To: David Kastrup <dak <at> gnu.org>
Cc: 65628 <at> debbugs.gnu.org
Subject: Re: bug#65628: Document preview fails with long filenames
Date: Wed, 30 Aug 2023 18:52:04 +0100

[Message part 1 (text/plain, inline)]

Have to say this explanation seems unlikely to me at first sight. File path
limit MAX_PATH is 260 but here we have
C:\Users\johng\temp\textest\01234567890123456789012.tex which is only
about 50. Routinely deal with much longer paths than this using windows
without a problem. Similarly max command length for cmd.exe is 8182, the
underlying API limit is 32767 - and you can see the full command to
pdflatex echoed in the log so it's obviously getting through - so that also
seems unlikely.


On Wed, 30 Aug 2023 at 18:35, David Kastrup <dak <at> gnu.org> wrote:

> John Holman <john.g.holman <at> gmail.com> writes:
>
> > Hi. I'm not sure that the problem was captured in the log below created
> > by preview-report-bug so a few more details first:
> >
> > Running auctex on windows 11 with MiKTeX
> >
> > Test file contents (but most files containing maths seem to trigger the
> > problem)
> >
> > \documentclass{article}
> > \begin{document}
> >
> > \(x=y\)
> >
> > \end{document}
> >
> > Document preview works when the filename has no more than 22 characters,
> > e.g. test.tex, but fails with message "Ghostscript filter: No bounding
> box"
> > when the filename has more, e.g. 01234567890123456789012.tex. However
> > buffer preview always works.
> >
> > When document preview fails the maths sections are replaced with the
> > roadworks signs indefinitely. The 01234567890123456789012.prv directory
> is
> > created
> > containing a temp folder containing a preview.dsc file but no png
> > images. The rungs.exe and mgs.exe processes don't exit until killed
> manually
> > or emacs is closed.
> >
> > The contents of the *.. output* buffer are then
> >
> > Running `Preview-LaTeX' on `012345678901234546789012' with ``pdflatex
> >  -file-line-error
> >
> "\nonstopmode\nofiles\PassOptionsToPackage{active,tightpage,auctex}{preview}\AtBeginDocument{\ifx\ifPreview\undefined\RequirePackage[displaymath,floats,graphics,textmath,sections,footnotes]{preview}[2004/11/05]\fi}"
> > "\input" "\detokenize{" "012345678901234546789012.tex" "}"''
>
> Probably exceeding a total command line length of 256 characters or some
> similar Windows restriction.  I also seem to remember that some Windows
> file system or API limited the length of absolute filenames you could
> access even when only using relative filenames, so the length of the
> directory path you are in might also play a part here.
>
> --
> David Kastrup
>

[Message part 2 (text/html, inline)]

Message #14 received at 65628 <at> debbugs.gnu.org (full text, mbox):

From: Ikumi Keita <ikumi <at> ikumi.que.jp>
To: John Holman <john.g.holman <at> gmail.com>
Cc: 65628 <at> debbugs.gnu.org
Subject: Re: bug#65628: Document preview fails with long filenames
Date: Thu, 31 Aug 2023 14:21:20 +0900

Hi John,

>>>>> John Holman <john.g.holman <at> gmail.com> writes:

> Document preview works when the filename has no more than 22 characters,
> e.g. test.tex, but fails with message "Ghostscript filter: No bounding box"
> when the filename has more, e.g. 01234567890123456789012.tex. However
> buffer preview always works.

I think the origin of this issue is the same as bug#27088:
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27088

The log you provided seems to have extra line break discussed in the
above bug record thread:
> The contents of the *.. output* buffer are then

> 012345678901234546789012.tex:4: Preview: Snippet 1
> ended.(282168+127431x1593186
> ).
> <-><->

> l.4 \(x=y\)

As I corrected in the above thread, MikTeX doesn't see the environment
variable max_print_line unfortunately and you can try one of the
following two options:
(1) Add command line option --max-print-line=1000 to latex.
    I expect you can use the customize option `preview-LaTeX-command'
    for that purpose.
(2) Edit the MikTeX config file and modify max_print_line parameter.

Regards,
Ikumi Keita
#StandWithUkraine #StopWarInUkraine

Message #17 received at 65628 <at> debbugs.gnu.org (full text, mbox):

From: John Holman <john.g.holman <at> gmail.com>
To: Ikumi Keita <ikumi <at> ikumi.que.jp>
Cc: 65628 <at> debbugs.gnu.org
Subject: Re: bug#65628: Document preview fails with long filenames
Date: Thu, 31 Aug 2023 09:13:23 +0100

[Message part 1 (text/plain, inline)]

Hi Ikumi

Many thanks - your suggestion to use the customize option to add
--max-print-line=1000 to the pdflatex command line works at least for the
current test case.
Adding -max-print-line=1000 - one hyphen rather than two - also works.
Perhaps auctex should be changed to add this as standard, since  bug#27088
suggests it could occur in various contexts?

Resulting output:

Running `Preview-LaTeX' on `012345678901234546789012' with ``pdflatex
 -file-line-error    -max-print-line=1000
"\nonstopmode\nofiles\PassOptionsToPackage{active,tightpage,auctex}{preview}\AtBeginDocument{\ifx\ifPreview\undefined\RequirePackage[displaymath,floats,graphics,textmath,sections,footnotes]{preview}[2004/11/05]\fi}"
"\input" "\detokenize{" "012345678901234546789012.tex" "}"''
This is pdfTeX, Version 3.141592653-2.6-1.40.25 (MiKTeX 23.5) (preloaded
format=pdflatex.fmt)
 restricted \write18 enabled.
entering extended mode
LaTeX2e <2023-06-01> patch level 1
L3 programming layer <2023-08-11>

No auxiliary output files.

(012345678901234546789012.tex
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/base\article.cls
Document Class: article 2023/05/17 v1.4n Standard LaTeX document class
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/base\size10.clo))
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/l3backend\l3backend-pdftex.def)
No file 012345678901234546789012.aux.
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\preview.sty
(C:\Users\johng\AppData\Local\Programs\MiKTeX\tex/latex/luatex85\luatex85.sty)
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prtightpage.def)
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prauctex.def
No auxiliary output files.


(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prauctex.cfg))
(c:/Users/johng/.emacs.d/elpa/auctex-13.2.1/latex\prfootnotes.def)
Preview: Fontsize 10pt
Preview: PDFoutput 1
)
012345678901234546789012.tex:4: Preview: Snippet 1 started.
<-><->

l.4 \(
      x=y\)
Preview: Tightpage -32891 -32891 32891 32891
012345678901234546789012.tex:4: Preview: Snippet 1
ended.(282168+127431x1593186).
<-><->

l.4 \(x=y\)

[1{C:/Users/johng/AppData/Local/MiKTeX/fonts/map/pdftex/pdftex.map}] )
(see the transcript file for additional
information)<C:/Users/johng/AppData/Local/Programs/MiKTeX/fonts/type1/public/amsfonts/cm/cmmi10.pfb><C:/Users/johng/AppData/Local/Programs/MiKTeX/fonts/type1/public/amsfonts/cm/cmr10.pfb>
Output written on 012345678901234546789012.pdf (1 page, 17918 bytes).
Transcript written on 012345678901234546789012.log.

TeX Output exited as expected with code 1 at Thu Aug 31 09:08:27
Running `Preview-PDF2DSC' with ``pdf2dsc "012345678901234546789012.pdf"
"012345678901234546789012.prv/tmpU0X9fd"/preview.dsc''

Preview-PDF2DSC finished at Thu Aug 31 09:08:27
Running `Preview-Ghostscript' with
``"c:/Users/johng/AppData/Local/Programs/MiKTeX/miktex/bin/x64/rungs.exe"
^"-sOutputFile=012345678901234546789012.prv/tmpU0X9fd/pr1-^%d.png^" "-q"
"-dDELAYSAFER" "-dNOPAUSE" "-DNOPLATFONTS" "-dPrinted" "-dTextAlphaBits=4"
"-dGraphicsAlphaBits=4" "-sDEVICE=png16m" "-r106.74x106.68"''

Preview-Ghostscript finished at Thu Aug 31 09:08:28

On Thu, 31 Aug 2023 at 06:21, Ikumi Keita <ikumi <at> ikumi.que.jp> wrote:

> Hi John,
>
> >>>>> John Holman <john.g.holman <at> gmail.com> writes:
>
> > Document preview works when the filename has no more than 22 characters,
> > e.g. test.tex, but fails with message "Ghostscript filter: No bounding
> box"
> > when the filename has more, e.g. 01234567890123456789012.tex. However
> > buffer preview always works.
>
> I think the origin of this issue is the same as bug#27088:
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=27088
>
> The log you provided seems to have extra line break discussed in the
> above bug record thread:
> > The contents of the *.. output* buffer are then
>
> > 012345678901234546789012.tex:4: Preview: Snippet 1
> > ended.(282168+127431x1593186
> > ).
> > <-><->
>
> > l.4 \(x=y\)
>
> As I corrected in the above thread, MikTeX doesn't see the environment
> variable max_print_line unfortunately and you can try one of the
> following two options:
> (1) Add command line option --max-print-line=1000 to latex.
>     I expect you can use the customize option `preview-LaTeX-command'
>     for that purpose.
> (2) Edit the MikTeX config file and modify max_print_line parameter.
>
> Regards,
> Ikumi Keita
> #StandWithUkraine #StopWarInUkraine
>

[Message part 2 (text/html, inline)]

Message #20 received at 65628 <at> debbugs.gnu.org (full text, mbox):

From: Ikumi Keita <ikumi <at> ikumi.que.jp>
To: John Holman <john.g.holman <at> gmail.com>
Cc: 65628 <at> debbugs.gnu.org
Subject: Re: bug#65628: Document preview fails with long filenames
Date: Thu, 31 Aug 2023 18:40:59 +0900

Hi John,

>>>>> John Holman <john.g.holman <at> gmail.com> writes:
> Many thanks - your suggestion to use the customize option to add
> --max-print-line=1000 to the pdflatex command line works at least for the
> current test case.
> Adding -max-print-line=1000 - one hyphen rather than two - also works.

Thanks for the confirmation. I'll close this bug.

> Perhaps auctex should be changed to add this as standard, since  bug#27088
> suggests it could occur in various contexts?

Unfortunately, --max-print-line is MikTeX specific option. TeX Live
doesn't recognize it and see environment variable max_print_line. :-( I
hope MikTeX to follow the TeX Live behavior.

Regards,
Ikumi Keita
#StandWithUkraine #StopWarInUkraine

Message #27 received at 65628 <at> debbugs.gnu.org (full text, mbox):

From: John Holman <john.g.holman <at> gmail.com>
To: Ikumi Keita <ikumi <at> ikumi.que.jp>
Cc: 65628 <at> debbugs.gnu.org
Subject: Re: bug#65628: Document preview fails with long filenames
Date: Thu, 31 Aug 2023 11:45:32 +0100

[Message part 1 (text/plain, inline)]

Yes, this does look quite awkward to fix. But maybe mention the problem and
workaround for MiKTeX users in the documentation somewhere?

Thanks again for your help.

[Message part 2 (text/html, inline)]

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