Bug 458442 - Arabic keyboard layout sends ligatures as one character (Laa Problem)
Summary: Arabic keyboard layout sends ligatures as one character (Laa Problem)
Status: REPORTED
Alias: None
Product: kwin
Classification: Plasma
Component: input (show other bugs)
Version: unspecified
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-08-28 20:28 UTC by AvidSeeker
Modified: 2022-08-30 22:34 UTC (History)
1 user (show)

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Description AvidSeeker 2022-08-28 20:28:59 UTC 
SUMMARY
KDE sends [Arabic ligature glyphs](https://en.wikipedia.org/wiki/Arabic_alphabet#Ligatures) as a single glyph. For example, Laa+Alif ligature "لا" (U+0644, U+0627) is sent as "ﻻ" (U+FEFB), and similarly for (ﻷ، ﻵ، ﻹ).


STEPS TO REPRODUCE
1. Settings > Keyboard > Add default Arabic layout
2. Type "ﻻ" (i.e: "b" in QWERTY keyboards)

OBSERVED RESULT
Output is ﻻ (U+FEFB)

EXPECTED RESULT
Output is لا (U+0644, U+0627). 

SOFTWARE/OS VERSIONS
All latest update

ADDITIONAL INFORMATION
To clarify for English, this is like having a key to type a ligature. Say that you want to press "b" to type two characters: "fi" but instead you get "fi" as a single character. This is exactly what's happening with Arabic.
Comment 1 Nate Graham 2022-08-30 20:28:01 UTC 
I don't know what part of the stack is responsible for this, but I very much doubt it's anywhere in KDE code.
Comment 2 AvidSeeker 2022-08-30 22:34:22 UTC 
(In reply to Nate Graham from comment #1)
> I don't know what part of the stack is responsible for this, but I very much
> doubt it's anywhere in KDE code.

At first I expected it to be from ibus, but then I tried a fresh installation of KDE without ibus and the problem persisted.