Half-width katakana
hankaku-kanaon by defaultJapanese
Half-width katakana such as "ｱｲｳ", and half-width Japanese punctuation
Example
How to fix
Write it in full-width katakana. If it quotes a system's display as it is, put it in brackets.
Why it matters
Half-width katakana such as "ｱｲｳ" is left over from text pasted out of an old system. It is the same word as the full-width "アイウ" but a search treats it as a different one, and a screen reader and the character widths do not match. Half-width Japanese punctuation, brackets and the middle dot (｡｢｣､･) are the same. Code, link text and a name quoted in brackets or quotation marks (a label copied from a screen) are not counted.
What it does not flag
Code, link text and a name quoted in brackets or quotation marks (a screen label such as 「ｶﾅ表示」) are not counted.
Turning it off or relaxing it
Technical details
- Layer
- L1
- Status
- stable
- Severity
- warning
- Languages
- ja
- Suited to
- business, technical, blog, legal, docs, academic, literature, speech
Levels
Set a level for this rule under rules in chaff.yaml. With nothing set, it runs at the level its genre gives it (see By genre below).
| strict | error |
|---|---|
| normal | warning |
| relaxed | info |
This rule has no limit to count to. A level sets how a finding is marked: relaxed keeps the finding and marks it a step lower.
By genre
- Runs by default in
- technical/spec, technical/readme, blog/tech, blog/essay, blog/owned-media, business/proposal, business/report, business/email, business/press-release, business/meeting-notes, legal/contract, legal/statute, legal/judgment, legal/patent, docs/manual, docs/faq, docs/glossary, academic/paper, literature/fiction, literature/essay, literature/poetry, literature/play, speech/address, speech/transcript
Message
Half-width katakana "{kana}" (full-width: "{fullwidth}")
This page is built from the rule's definition file:packages/chaff/rules/hankaku-kana.yaml