[Octave-bug-tracker] [bug #62779] latex_renderer fails with Miktex due to 8.3 filenames

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?62779>

                 Summary: latex_renderer fails with Miktex due to 8.3
filenames
                 Project: GNU Octave
               Submitter: None
               Submitted: Mon 18 Jul 2022 03:37:07 AM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error or Warning
                  Status: None
             Assigned to: None
         Originator Name: Mark Harrison
        Originator Email: mark.z.harrison@gmail.com
             Open/Closed: Open
                 Release: 7.1.0
         Discussion Lock: Any
        Operating System: Microsoft Windows


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Follow-up Comments:


-------------------------------------------------------
Date: Mon 18 Jul 2022 03:37:07 AM UTC By: Anonymous
When using Miktex version 2.9.7440 (2020-05-17) or later, rendering latex
fails due to Octave using the shortened 8.3-style name of the temporary
directory to the latex file. Miktex no longer supports this style of file
name[1]. The following code produces incorrect output (see attached
buggy_figure.png) and the error message:


setenv("OCTAVE_LATEX_DEBUG_FLAG", "1")
figure;
title('$\sqrt\beta$', 'interpreter', 'latex')


The error message:


warning: latex_renderer: latex failed for string "?"
* Command:
        "latex -interaction=nonstopmode
-output-directory="C:\Users\MHARRI~1\AppData\Local\Temp\latex1v8O1z"
"C:\Users\MHARRI~1\AppData\Local\Temp\latex
1v8O1z\default.tex""

* Error:


* Stdout:
This is pdfTeX, Version 3.141592653-2.6-1.40.24 (MiKTeX 22.3) (preloaded
format=latex.fmt)
 restricted \write18 enabled.
entering extended mode
! I can't find file `C:/Users/MHARRI'.
<to be read again>
                   \protect
<*> C:/Users/MHARRI~
                    1/AppData/Local/Temp/latex1v8O1z/default.tex
(Press Enter to retry, or Control-C to exit)
Please type another input file name
! Emergency stop.
<to be read again>
                   \protect
<*> C:/Users/MHARRI~
                    1/AppData/Local/Temp/latex1v8O1z/default.tex
No pages of output.
Transcript written on
C:\Users\MHARRI~1\AppData\Local\Temp\latex1v8O1z\texput.l
og.

warning: called from
    __axis_label__ at line 36 column 6
    title at line 64 column 8
    bug at line 4 column 1

warning: latex_renderer: a run-time test failed and the 'latex' interpreter
has been disabled.
warning: called from
    __axis_label__ at line 36 column 6
    title at line 64 column 8
    bug at line 4 column 1


Creating the directory C:\TEMP and changing the script to


setenv ("TEMP", 'C:\Temp\')
setenv("OCTAVE_LATEX_DEBUG_FLAG", "1")
figure;
title('$\sqrt\beta$', 'interpreter', 'latex')


results in correct output and rendering (see attached good_figure.png).


* Caching ?:11.000000:0:0:0:0
* Caching $\sqrt\beta$:11.000000:1:0:0:0


[1]
https://github.com/MiKTeX/miktex/blob/next/CHANGELOG.md#297440---2020-05-17






    _______________________________________________________
File Attachments:


-------------------------------------------------------
Date: Mon 18 Jul 2022 03:37:07 AM UTC  Name: buggy_figure.png  Size: 10KiB  
By: None
Comparison of figure output with/without changing TEMP directory
<http://savannah.gnu.org/bugs/download.php?file_id=53449>
-------------------------------------------------------
Date: Mon 18 Jul 2022 03:37:07 AM UTC  Name: good_figure.png  Size: 8KiB   By:
None
Comparison of figure output with/without changing TEMP directory
<http://savannah.gnu.org/bugs/download.php?file_id=53450>

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