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Justification of text #3336
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Overall, it seems that the core requirement (allow users to over-ride the justification of text) may not be a problem for other writing systems, but it may not be necessary? What I don't know is the user-requirement aspect for other writing systems. The links above go to docs based on the rules of the writing system, but I have questions like:
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Yes, some of my colleagues in the Japanese DAISY Consortium are dyslexic.
Justification in the Japanese language does not make word spacing too much since JP text typically does not use word spacing. Justification may increase character spacing. However, as far as I know, nobody thinks such character spacing is bad for accessibility. For some dyslexic Japanese, word spacing (called Wakachi-gaki) is useful. In this case, too wide word spaces might be problematic. One DAISY reader in Japan uses justification when wakachi-gaki is enabled and does not use justification otherwise.
I do not know any particular requirements about justification, character spacing, and word spacing from low-vision people. |
Superseded by #3337 |
https://www.w3.org/TR/WCAG22/#visual-presentation
Section 1.4.8 says:
I18N notes that: This does not apply to all writing systems. For example, Chinese and Japanese prefer fully justified text to left-aligned text. See the last paragraph of clreq 3.5.1 Necessity for Line Adjustment and jlreq 3.8.1 Necessity for Line Adjustment.
There is a comment from @alastc in #2680 here pointing out that the SCs here allow individual users to override author's spacing (and, in this case, justification), not specific guidance forcing any specific justification onto a document.
The "understanding" doc here says:
Note that CJK languages in particular use other strategies to manage text so that it aligns into columns, so the above description rarely applies to these languages. Other languages have different strategies for managing whitespace during justification (such as kashida in Arabic script).
It is unclear in the the understanding guide when to apply this SC to non-Latin-script writing systems.
This issue doesn't have a specific textual ask (unless it would be to clarify the understanding section or perhaps the author responsibility section).
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