Error in OS/2 table of mona.ttf

[Pander]

Binary package hint: ttf-mona

Dumpint OS/2 table of mona.ttf results in the following error:

$ ttx -d . -t OS/2 /usr/share/fonts/truetype/mona/mona.ttf
Dumping "/usr/share/fonts/truetype/mona/mona.ttf" to "./mona#5.ttx"...
Traceback (most recent call last):
  File "/usr/bin/ttx", line 11, in <module>
    ttx.main(sys.argv[1:])
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttx.py", line 292, in main
    process(jobs, options)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttx.py", line 277, in process
    action(input, output, options)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttx.py", line 170, in ttDump
    disassembleInstructions=options.disassembleInstructions)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttLib/__init__.py", line 262, in saveXML
    self._tableToXML(tableWriter, tag, progress)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttLib/__init__.py", line 277, in _tableToXML
    table = self[tag]
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttLib/__init__.py", line 367, in __getitem__
    table.decompile(data, self)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttLib/tables/O_S_2f_2.py", line 103, in decompile
    sstruct.unpack2(OS2_format_2_addition, data, self)
  File "/usr/lib/python2.5/site-packages/FontTools/sstruct.py", line 97, in unpack2
    return unpack(format, data[:length], object), data[length:]
  File "/usr/lib/python2.5/site-packages/FontTools/sstruct.py", line 85, in unpack
    elements = struct.unpack(formatstring, data)
  File "/usr/lib/python2.5/struct.py", line 87, in unpack
    return o.unpack(s)
struct.error: unpack requires a string argument of length 18
Error in sys.excepthook:
Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/apport_python_hook.py", line 78, in apport_excepthook
    report_file = open(pr_filename, 'wt')
IOError: [Errno 13] Permission denied: '/var/crash/_usr_bin_ttx.1000.crash'

Original exception was:
Traceback (most recent call last):
  File "/usr/bin/ttx", line 11, in <module>
    ttx.main(sys.argv[1:])
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttx.py", line 292, in main
    process(jobs, options)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttx.py", line 277, in process
    action(input, output, options)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttx.py", line 170, in ttDump
    disassembleInstructions=options.disassembleInstructions)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttLib/__init__.py", line 262, in saveXML
    self._tableToXML(tableWriter, tag, progress)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttLib/__init__.py", line 277, in _tableToXML
    table = self[tag]
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttLib/__init__.py", line 367, in __getitem__
    table.decompile(data, self)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttLib/tables/O_S_2f_2.py", line 103, in decompile
    sstruct.unpack2(OS2_format_2_addition, data, self)
  File "/usr/lib/python2.5/site-packages/FontTools/sstruct.py", line 97, in unpack2
    return unpack(format, data[:length], object), data[length:]
  File "/usr/lib/python2.5/site-packages/FontTools/sstruct.py", line 85, in unpack
    elements = struct.unpack(formatstring, data)
  File "/usr/lib/python2.5/struct.py", line 87, in unpack
    return o.unpack(s)
struct.error: unpack requires a string argument of length 18

Please fix the OS/2 table of mona.ttf so that ttx is able to dump it and also other applications can access this data without errors.

[Pander (pander)]

also these errors occur:
$ ttx -d /tmp /usr/share/fonts/truetype/mona/mona.ttf
Dumping "/usr/share/fonts/truetype/mona/mona.ttf" to "/tmp/mona#4.ttx"...
Dumping 'GlyphOrder' table...
Dumping 'head' table...
Dumping 'hhea' table...
Dumping 'maxp' table...
An exception occurred during the decompilation of the 'OS/2' table
Dumping 'OS/2' table...
An exception occurred during the decompilation of the 'hmtx' table
Dumping 'hmtx' table...
Dumping 'cmap' table...
Dumping 'fpgm' table...
Dumping 'cvt ' table...
An exception occurred during the decompilation of the 'loca' table
Dumping 'loca' table...
An exception occurred during the decompilation of the 'glyf' table
Dumping 'glyf' table...
Traceback (most recent call last):
  File "/usr/bin/ttx", line 11, in <module>
    ttx.main(sys.argv[1:])
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttx.py", line 289, in main
    process(jobs, options)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttx.py", line 274, in process
    action(input, output, options)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttx.py", line 171, in ttDump
    disassembleInstructions=options.disassembleInstructions)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttLib/__init__.py", line 267, in saveXML
    self._tableToXML(tableWriter, tag, progress)
  File "/usr/lib/python2.5/site-packages/FontTools/fontTools/ttLib/__init__.py", line 301, in _tableToXML
    table.toXML(writer, self, progress)
TypeError: toXML() takes exactly 3 arguments (4 given)

[Paul Wise (Debian) (pabs)]

mona.ttf is a very buggy font. I've worked around the issues it has in the OS/2 and loca/glyf tables, moving on to the hmtx crash.

[Launchpad Janitor (janitor)]

This bug was fixed in the package fonttools - 2.4-1

---------------
fonttools (2.4-1) unstable; urgency=low

  * New upstream release
    - Fixes error in OS/2 table of mona.ttf (LP: #223884)
  * Switch to dh_python2
  * Switch to debhelper 9
  * Bump Standards-Version, no changes needed
  * Drop unneeded postinst
  * Improve the watch file
  * Adjust download location
  * Add a file with upstream info

 -- Paul Wise <email address hidden> Sat, 22 Jun 2013 23:48:19 +0800