[Octave-bug-tracker] [bug #55974] Octave stuck on Linux when figure contains a string with non ASCII characters encoded in ISO 8859-1

[Roland Baudin]

URL:
  <https://savannah.gnu.org/bugs/?55974>

                 Summary: Octave stuck on Linux when figure contains a string
with non ASCII characters encoded in ISO 8859-1
                 Project: GNU Octave
            Submitted by: roland65
            Submitted on: jeu. 21 mars 2019 13:57:55 UTC
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 5.1.0
        Operating System: GNU/Linux

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Details:

Sometimes I use on Linux some script (m-file) that comes from the Windows
world. Such scripts are usually encoded in ISO 8859-1.

If there is in the script some non ASCII character (like 'é', 'à' and other
french accents), in a call to functions like xlabel(), ylabel(), title(),
etc., then Octave 5.1.0 gets stuck and seems to be lost in an infinite loop.

I attached two scripts to test this issue. Both contain the same code (below,
'Fréquence' is the french word for 'Frequency'):

plot( sin(1 : 1000) );
xlabel('Fréquence');

Note that the script 'test_utf8.m' is encoded in UTF-8 and the script
'test_iso88591.m' is encoded in ISO 8859-1.

In Octave 5.1.0 (system is Ubuntu Linux 18.04 64 bits), test_utf8.m is
executed with no error and the word 'Fréquence' is correctly displayed, while
test_iso88591.m makes Octave stuck (empty figure window, prompt never
returns).

In Octave 4.4.1 (same system), test_iso88591.m runs, but displays the
following error message:

warning: ft_text_renderer: failed to decode string `Fr�quence x' with locale
`fr_FR.UTF-8'
warning: called from
    __axis_label__ at line 31 column 3
    xlabel at line 51 column 8
    test at line 4 column 1
warning: ft_text_renderer: failed to decode string `Fr�quence x' with locale
`fr_FR.UTF-8'
warning: called from
    __axis_label__ at line 31 column 3
    xlabel at line 51 column 8
    test at line 4 column 1

In Windows, both scripts run as expected.




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File Attachments:


-------------------------------------------------------
Date: jeu. 21 mars 2019 13:57:55 UTC  Name: test.zip  Size: 423o   By:
roland65
Scripts to test the issue
<http://savannah.gnu.org/bugs/download.php?file_id=46604>

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