4.6 KiB
Translating God's Eye View
Shipped languages: English (source and fallback) and Russian (ru).
How it works
The English text is the key: code calls t('Save keys'), and markup marks elements with data-i18n. How developers mark text is in I18N.md.
Every other language is one flat JSON file, src/i18n/locales/<code>.json, keyed by the English text:
{
"Save keys": "Сохранить ключи",
"{count} cameras": {
"one": "{count} камера",
"few": "{count} камеры",
"many": "{count} камер",
"other": "{count} камеры"
}
}
A tn() entry is keyed by the English plural form and holds one string per Intl.PluralRules category of that language. A missing entry falls back to English.
The page picks its language from ?lang=, then the choice stored by the EN/RU switch in the Visual Presets dock, then the browser languages, then English. Switching reloads the page.
The check
npm run i18n # what is missing, unused or broken, per language
npm run i18n -- --missing ru # missing ru entries as JSON, ready to translate
npm run i18n -- --prune # drop entries the code no longer uses
npm test runs the same check (src/i18n/catalog.test.mjs). It fails when a translation is missing, when an entry is no longer used, when placeholders differ from the English, or when a plural entry lacks a form.
Changing English text changes its key: the old translation becomes unused and the new text shows as missing. Translate it and prune.
Fixing a translation
Edit src/i18n/locales/<code>.json and run npm run i18n. To see your change, open the app with ?lang=<code>.
Adding a language
- Create
src/i18n/locales/<code>.json, fill it fromnpm run i18n -- --missing <code>(start from{}), and translate every entry. - Import it in
src/i18n/index.jsand add it toCATALOGS. - Add the code to
LOCALESand its own-language name toLOCALE_NAMESinsrc/i18n/locale.js. Right-to-left languages also go inRTL_LOCALES. - Add
src/i18n/locales/<code>.jsonnext toru.jsoninscripts/package-boundaries.json. - Run
npm run i18nandnpm test, then check the panels in the app at narrow widths.
Rules
- Keep every
{placeholder}exactly as in the English; you may move it. - UPPERCASE English stays UPPERCASE. Short labels, chips and HUD readouts should stay short; prefer an abbreviation over a wrapped line.
- Keep the separators
·,—,→,↗,…. - Leave product, provider and data names in their original form: Google Maps, Cesium ion, OpenAI, ChatGPT, NASA FIRMS, USGS, OpenSky, ADS-B, AIS, CCTV, HUD, TomTom, OpenStreetMap, Mapillary, and keyboard keys (Space, Esc, H, 1–9).
- Units follow the language's convention (Russian: км, м/с, уз, фт).
Never translated
These are contracts, not copy: layer ids and registry keys, status enums and other machine values (translate only the label shown for them), share-link and hash parameters, ?lang=, storage schemas, API fields, voice tool names and schemas, provider and dataset names, data from feeds (callsigns, vessel, satellite, station and place names, headlines), attribution, console diagnostics, and user-authored content.
Russian glossary
| English | Русский |
|---|---|
| layer / data layer | слой / слой данных |
| feed | поток данных (short: поток) |
| source | источник |
| LIVE (status) / live data | ОНЛАЙН / в реальном времени |
| SIMULATED | СИМУЛЯЦИЯ |
| stale / degraded / unavailable | устарел / с перебоями / недоступен |
| key (API key) / POWER UP | ключ / ЗАПУСК |
| aircraft / flight / vessel | самолёт / рейс / судно |
| launch (rocket) / space mission | пуск / космическая миссия |
| contact / tracking | контакт / отслеживание |
| installation | объект |
| scene / shot / recipe | сцена / кадр / рецепт |
| HDG / BRG / CRS / FOV / DEST | КУРС / ПЕЛ. / ПУТЬ / ОБЗОР / НАЗН. |
| PREV / NEXT | ПРЕД. / СЛЕД. |