Main Menu editor destroys applications menu when processing a non-ASCII character.

[Luke Horwell]

There is a entry in my applications menu named "Life Is Strange™" (note the ™ character). When using the Main Menu editor to make adjustments to the layout of the menus, a serious error occurs while processing the ™ character and as a result, destroys the entire ~/.config/menus/mate-applications.menu file to 0 kB. Occurs in Ubuntu MATE 16.04.1.

A workaround is to rename the affecting program's name in a text editor before using the Main Menu tool.

This is the back trace from mate-panel:

---------------------

/usr/lib/python2.7/dist-packages/Mozo/MenuEditor.py:533: UnicodeWarning: Unicode equal comparison failed to convert both arguments to Unicode - interpreting them as being unequal
  if node.childNodes[0].nodeName == 'Filename' and node.childNodes[0].childNodes[0].nodeValue == filename:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/Mozo/MainWindow.py", line 430, in on_menu_tree_drag_data_received
    self.editor.copyItem(item, new_parent)
  File "/usr/lib/python2.7/dist-packages/Mozo/MenuEditor.py", line 298, in copyItem
    self.save()
  File "/usr/lib/python2.7/dist-packages/Mozo/MenuEditor.py", line 68, in save
    fd.write(re.sub("\n[\s]*([^\n<]*)\n[\s]*</", "\\1</", getattr(self, menu).dom.toprettyxml().replace('<?xml version="1.0" ?>\n', '')))
  File "/usr/lib/python2.7/xml/dom/minidom.py", line 61, in toprettyxml
    return writer.getvalue()
  File "/usr/lib/python2.7/StringIO.py", line 271, in getvalue
    self.buf += ''.join(self.buflist)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 15: ordinal not in range(128)

** (mate-panel:12720): WARNING **: Error loading menu layout from "/home/luke/.config/menus/mate-applications.menu": Error on line 1 char 1: Document was empty or contained only whitespace

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[Luke Horwell (lah7)]

This affects MATE 1.14. Another user could not reproduce this on 1.12, both of which run 16.04 LTS.

https://ubuntu-mate.community/t/main-menu-editor-destroys-menu-with-non-ascii-characters/7876

[Martin Wimpress  (flexiondotorg)]

Can you raise this issue upstream please.

  * https://github.com/mate-desktop/mozo

It is definitely a bug in Mozo not handling Unicode.

[Luke Horwell (lah7)]

Issue raised upstream:

https://github.com/mate-desktop/mozo/issues/29

[Luke Horwell (lah7)]

Upstream committed fixes:

https://github.com/mate-desktop/mozo/commit/2256cf36835b904670606972fb4d6bb5f26ea5dc
https://github.com/mate-desktop/mozo/commit/5f116eb7aac88f1c308c12e57bfcc203ab44f309

The last link looks like they could be backported to 1.14 too.

[Vlad Orlov (monsta)]

Ok, 1.14.1 is released with the fix.

[Launchpad Janitor (janitor)]

This bug was fixed in the package mozo - 1.15.1-0ubuntu1

---------------
mozo (1.15.1-0ubuntu1) yakkety; urgency=medium

  * New upstream development release.

 -- Martin Wimpress <email address hidden> Fri, 09 Sep 2016 13:04:48 +0100

[Vlad Orlov (monsta)]

In regard to ubuntu-mate entry, it can be considered fixed.