Files
pdfcraft/docs/localization-parity.md
T
Guillem VelaandClaude Sonnet 5.5 aad803caae M14: add Catalan interface and date localization
Register Catalan (`ca`) as an interface and date language with a
2,592-entry contributor-original catalog written from the meaning of the
English labels. Plurals use the one/other rule; every `ca-*` locale,
including Valencian (`ca_ES@valencia`), resolves to this catalog.

Tests cover registration and persistence, every command, menu, tool group
and section, every `tl!` literal in the UI source, and every key in the
other bundled catalogs. The Latin-script glyph test in tests/fonts.rs now
includes Catalan (the interpunct of l·l is covered by the bundled faces).

Catalan dates elide the preposition before a vowel (7 de març, 7 d'abril,
8 d'octubre), so the date language sets months_with_day, as Czech and Russian
do; a unit test pins it.

Update localization docs, the parity table and the roadmap log, and add the
ATTRIBUTION.toml entry (ATTRIBUTION.md regenerated). The contributor, a
native Catalan speaker, has reviewed the translation.

Validation: cargo fmt --check; clippy -D warnings and tests on
pdfcraft-ui-egui (i18n, fonts); pdfcraft-engine dates tests;
cargo xtask assets; cargo xtask layers.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-10-15 16:51:02 +02:00

7.5 KiB
Raw Blame History

Localization parity

Last reviewed: 2026-10-10 · Last updated: 2026-10-13 · Change: minor (Vietnamese 100% of current key union; native-speaker community review; twelve-language mean ≈68%) · Target: Adobe Acrobat Pro (Acrobat DC, continuous track 26.002.21931, macOS) Last reviewed: 2026-10-10 · Last updated: 2026-10-14 · Change: minor (Italian count after completing its catalog) · Target: Adobe Acrobat Pro (Acrobat DC, continuous track 26.002.21931, macOS)

Per-language status of PdfCraft's interface against Acrobat Pro's. How translations work and how to add a language: localization.md. Summary in ROADMAP.md.

How this was measured

  • Strings translated is measured: the catalogs in crates/ui-egui/src/i18n/<code>.tsv, counted as distinct (context, English) keys with a non-empty translation. The current denominator is the union of keys across all catalogs (2,590 plain keys as of 2026-10-13, plus language-specific context rows such as Vietnamese theme/Appearance). The twelve-language percentage table below still quotes the historical 2,143-key snapshot from 2026-10-10 for every language except Vietnamese (re-measured against the current union). English is built in.
  • Not counted: error details from the engine and the operating system, which are shown in English inside a translated frame; there is no translated user documentation or help yet (Acrobat ships localized help).
  • Script support comes from localization.md, the vendored winit IME patches (vendor/README.md) and user reports.
  • Native review: "community" means a native speaker contributed or corrected the catalog in a pull request or issue; "no" means no record of review. No catalog has had a formal review.
  • Acrobat ships 24 interface localizations on macOS (.lproj: cs, da, de, en, es, fi, fr, hu, it, ja, ko, nl, no, pl, pt, ru, sv, tr, uk, zh_CN, zh_TW, plus en_AE, en_IL, fr_MA) and Middle East / North Africa editions (MEA Arabic, MEH Hebrew, NAF French; Resources/Sequences/).

The twelve key languages

Language Code UI strings translated Dialogs / tooltips / help Script support Native review Status Acrobat ships it To full (h)
English en built in (100%) all; README and docs Latin yes full yes 0
Simplified Chinese zh-hans 2,088 (97.4%) dialogs and tooltips through tl!; no help CJK text and IME work, but release builds have no Hans face: many characters show as boxes (#826, #688, #728, #758; Flatpak #689) no partial yes 6–12
Spanish es 2,046 (95.5%) dialogs and tooltips; no help Latin no partial yes 2–4
Hindi hi 0 none Devanagari not tested (egui shapes Telugu conjuncts, so shaping is likely workable); no Devanagari face in craft-fonts no none no 10–18
Arabic ar 2,143 (100%) dialogs and tooltips; no help Letters joined and lines reordered at load, but layout not mirrored, wrapped lines break at the wrong end, typed text runs left to right (localization.md §Arabic) no partial yes (Middle East edition) 25–45
French fr 2,128 (99.3%) dialogs and tooltips; no help Latin no partial yes 1–2
Portuguese (Brazil) pt-br 2,130 (99.4%) dialogs and tooltips; no help Latin community (#288) partial yes 1–2
Indonesian id 0 none Latin no none no 3–5
Japanese ja 2,123 (99.1%) dialogs and tooltips; no help BIZ UDPGothic from craft-fonts; IME patched on macOS, Windows, X11, Wayland; vertical text renders but can't be edited no partial yes 4–8
German de 2,128 (99.3%) dialogs and tooltips; no help Latin community, in progress (#828: terminology, clipping) partial yes 2–4
Korean ko 0 none Hangul IME patched (Microsoft and Apple Korean, vendor/README.md winit 3, 6, 9, 10); no Hangul UI face in craft-fonts no none yes 6–10
Vietnamese vi 2,591 (100% of current union + theme Appearance) dialogs and tooltips; no help Latin with stacked diacritics; bundled Inter covers them (fonts test) community partial no 2–4

Localization dimension ≈ 68%: the mean over the twelve, counting a catalog's percentage but only 60% for Chinese and Arabic until their script problems are fixed, and 0 for Hindi, Indonesian and Korean (still missing). Vietnamese moved from 0% to 100% in that mean (59% → 68%). ≈ 55–110 h to bring all twelve to full, of which ≈ 35–60 h is engineering (Hans face, RTL layout, bidi text) and the rest catalogs and fixes; native-speaker review needs humans.

No language is full except English: every catalog leaves engine error details in English, and none has translated help. Vietnamese's To full hours are therefore residual help/docs polish (catalog and script work are already done), not missing UI strings.

Other shipped languages

Language Code UI strings translated Status Acrobat ships it
Traditional Chinese zh-hant 2,016 (94.1%) partial (same Hans/Hant face caveat) yes
Russian ru 2,043 (95.3%) partial yes
Bulgarian bg 2,094 (97.7%) partial no
Czech cs 135 (6.3%) menus only yes
Telugu te 2,058 (96.0%) partial (the release-pinned craft-fonts has no Telugu face yet) no
Hungarian hu 2,126 (99.2%) partial yes
Ukrainian uk 2,142 (100%) partial yes
Italian it 2,528 entries (every key of the other catalogs that the code looks up) partial yes
Kazakh kk 2,327 entries partial no
Polish pl 2,287 entries partial yes
Slovenian sl 2,324 entries partial no
Greek el 2,341 entries partial no
Turkish tr 2,313 entries partial yes
Lithuanian lt 2,585 entries partial; community native-speaker review (#1401) no
Catalan ca 2,592 entries partial: no translated help, engine error details in English; native-speaker review by the contributor no

15 other languages ship (23 catalogs plus English = 24 interface languages in Preferences). The entry counts without percentages were measured on 2026-10-12–14; they are not percentages of the older 2,143-key snapshot above. Their presence does not imply a detailed linguistic or runtime review. Acrobat languages PdfCraft lacks: Danish, Dutch, Finnish, Norwegian, Swedish, Hebrew. Vietnamese is shipped here but not by Acrobat.

Revision history

Date Change Summary
2026-10-13 minor Vietnamese (vi) catalog: 2,591 entries (100% of current key union + theme/Appearance); twelve-language mean ≈ 68%; native-speaker community review; registered with plural_none
2026-10-14 minor Italian: 2,528 entries after adding the 201 keys the other catalogs had and the code looks up
2026-10-14 minor Added Catalan (ca, 2,592 entries, measured 2026-10-14); retained existing language assessments
2026-10-12 minor Added current counts for Kazakh, Polish, Slovenian, Greek, Turkish and Lithuanian; retained existing language assessments and the original percentage snapshot
2026-10-10 major Created. Catalog counts measured from crates/ui-egui/src/i18n/*.tsv against the 2,143-key union; Acrobat's localizations from its bundle's .lproj and Sequences folder names