Hamza bb49e56627 Fonts: a missing Korean sans face falls back to a sans one (#1692) ...

Rebuilt on the split `fontdb/`: `KOREAN_SANS_FALLBACKS` and `sans_by_name` sit
in `fontdb/fallback.rs` beside `KOREAN_FALLBACKS`, `cjk_chain` takes the style,
`fallback_for_styled` is on both `ScopedFonts` and `FontDb`, and the tests live
in `fontdb/tests/fallback.rs` where that file's other fallback tests are.

`KOREAN_FALLBACKS` is serif-first (AppleMyungjo, Apple SD Gothic Neo, Batang,
Malgun Gothic...), so on Windows the first installed entry is Batang. A document
whose Korean text asks for faces that are not installed -- KoPub Dotum, KHNP
Han Dotum, BM Dohyeon -- came out in a serif face throughout: the report
measured 5,298 characters of one school document turning from sans to serif.

The font is not installed, so its name is all there is to go on. `sans_by_name`
reads the style out of the family name: Dotum (돋움), Gulim (굴림), Gothic
(고딕), Sans, Headline, Graphic and Dohyeon are sans; Batang (바탕),
Myungjo/Myeongjo (명조), Gungsuh (궁서) and Serif are serif. Serif is tested
first, so "Noto Serif KR" is not caught by the `sans` rule.

A run whose requested face is sans draws its fallback from the sans chain, which
leads with the system faces. If the requested name says neither, the
substitute's own name decides, which leaves today's chain in place.

The tests do not depend on which fonts the machine has: they pin the name
classification and the chain order -- the first sans entry comes before Batang,
and the serif chain still leads with a serif face, so a missing Myungjo is not
turned into a sans one.

`fallback_for` keeps its signature and delegates, so the ruby, kenten and image
callers are unchanged.

2026-10-27 16:30:57 +05:00

..

examples

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src

Fonts: a missing Korean sans face falls back to a sans one (#1692)

2026-10-27 16:30:57 +05:00

Cargo.toml

Merge PR #1077: Hyphenate Greek

2026-10-16 04:00:23 +00:00