Bug Hunting Session
Bug 101962 - Words with combining characters fail spelling check (win only)
Summary: Words with combining characters fail spelling check (win only)
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Linguistic (show other bugs)
(earliest affected) release
Hardware: All Windows (All)
: medium minor
Assignee: Not Assigned
Depends on:
Blocks: Spell-Checking
  Show dependency treegraph
Reported: 2016-09-07 12:47 UTC by Dennis Roczek
Modified: 2019-04-02 02:49 UTC (History)
6 users (show)

See Also:
Crash report or crash signature:

the first word "fühlen" gets marked as incorrect by the German spell checker (9.56 KB, application/vnd.oasis.opendocument.text)
2016-09-07 12:47 UTC, Dennis Roczek
correct document (9.55 KB, application/vnd.oasis.opendocument.text)
2016-09-07 13:03 UTC, Dennis Roczek

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Description Dennis Roczek 2016-09-07 12:47:18 UTC
Created attachment 127190 [details]
the first word "fühlen" gets marked as incorrect by the German spell checker

ü (0x75 + unicode binding 0x0308) is not recognized as a valid ü when using spelling correction, see attached document.

Version: (x64)
Build-ID: 31dd62db80d4e60af04904455ec9c9219178d620
CPU-Threads: 4; BS-Version: Windows 6.19; UI-Render: Standard; 
Gebietsschema: de-DE (de_DE); Calc: group
Comment 1 Dennis Roczek 2016-09-07 13:03:46 UTC
Created attachment 127193 [details]
correct document
Comment 2 Dennis Roczek 2016-09-07 13:36:45 UTC
cannot reproduced under os x, maybe a win only problem
Comment 3 Buovjaga 2016-10-03 09:18:12 UTC
Confirmed with German spellchecking installed.

Win 7 Pro 64-bit, Version: (x64)
Build ID: 31dd62db80d4e60af04904455ec9c9219178d620
CPU Threads: 4; OS Version: Windows 6.1; UI Render: default; 
Locale: fi-FI (fi_FI); Calc: CL
Comment 4 steve -_- 2016-10-03 11:08:14 UTC
Can not reproduce
Build ID: 8f96e87c890bf8fa77463cd4b640a2312823f3ad
CPU Threads: 4; OS Version: Mac OS X 10.12; UI Render: default; 
Locale: de-DE (de_DE.UTF-8); Calc: group
Comment 5 steve -_- 2016-10-03 11:11:06 UTC
Can not reproduce on linux
Build-ID: 1:5.1.4-0ubuntu1
CPU-Threads: 1; BS-Version: Linux 4.4; UI-Render: Standard; 
Gebietsschema: de-DE (de_DE.UTF-8)
Comment 6 Aron Budea 2016-10-04 01:23:49 UTC
There's a rendering issue as well if OpenGL is enabled, I opened bug 102944 on it.
Steve, if are able to enable OpenGL in Linux or OSX, could you see if you can confirm it?
Comment 7 Xisco Faulí 2016-10-05 08:27:38 UTC
Related to bug 99677?
Comment 8 Dennis Roczek 2016-10-05 22:58:19 UTC
hah, that would mean that this is a regression, wait a few minutes *testing*.

(some minutes later)

@xisco: does not seem so. :-(
Build-ID: 490fc03b25318460cfc54456516ea2519c11d1aa
Gebietsschema: de-DE (de_DE)
(portable apps version) shows same behavior as 5.2.2 which should not have the same problem as mentioned in bug 99677.
Comment 9 Olivier R. 2017-01-17 06:06:53 UTC
This is not a rendering issue.

The spellchecker Hunspell doesn’t recognize combining characters by default. We had the same issue for the French dictionary.

It can be easily solved by adding special commands in the affixes file which describes how the German dictionary behaves.

These commands are simple: they simply replace characters with combining diacritics by the usual ones before the words are parsed by the spellchecker.


Create the list of characters to be replaced at input.
The first one is the character with combining diacritics, the second one is the usual one.

These commands have to be added to the affixes files of all German dictionaries:

You can have a look at what is done in the French dictionary:
(Search for ICONV lines)
Comment 10 Olivier R. 2017-01-17 06:24:17 UTC
I was curious to see why it worked on Linux, so I tried, and it didn’t work either on Linux (Linux Mint). But you can’t see it if you don’t install the German packages.
Comment 11 QA Administrators 2018-01-18 03:33:52 UTC Comment hidden (obsolete)
Comment 12 Dennis Roczek 2018-04-01 11:33:17 UTC
still confirmed with

Version: (x64)
Build-ID: 60bfb1526849283ce2491346ed2aa51c465abfe6
CPU-Threads: 4; BS: Windows 10.0; UI-Render: GL; 
Gebietsschema: de-DE (de_DE); Calc: CL
Comment 13 QA Administrators 2019-04-02 02:49:14 UTC
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