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German KhokhlovandClaude Opus 5.5
9f71a62d12
- Register fr: catalog in CATALOGS, LOCALES and LOCALE_NAMES (Français); any fr-* browser tag (fr-CA, fr-BE, fr-CH) maps to it. - package-boundaries.json lists fr.json next to the other catalogs. - Picker and locale tests cover the new row and its local names. - docs/translations/fr.md: style, typography, plurals and glossary; TRANSLATORS.md and CURRENT-STATE.md list French as shipped. Co-Authored-By: Claude Opus 5.5 <[email protected]>
67 lines
4.3 KiB
Markdown
67 lines
4.3 KiB
Markdown
# Translating God's Eye View
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Shipped languages: **English** (source and fallback), **Spanish** (`es`), **French** (`fr`), **Russian** (`ru`), **Simplified Chinese** (`zh-CN`) and **Traditional Chinese** (`zh-Hant`).
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## How it works
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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](./I18N.md).
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Every other language is one flat JSON file, `src/i18n/locales/<code>.json`, keyed by the English text:
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```json
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{
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"Save keys": "Сохранить ключи",
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"{count} cameras": {
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"one": "{count} камера",
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"few": "{count} камеры",
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"many": "{count} камер",
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"other": "{count} камеры"
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}
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}
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```
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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.
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The page picks its language from `?lang=`, then the choice stored by the language picker (the globe button in the bottom-right corner), then the browser languages, then English. `?lang=` is not stored, and copied share links leave it out. Switching reloads the page.
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## The check
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```sh
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npm run i18n # what is missing, unused or broken, per language
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npm run i18n -- --missing ru # missing ru entries as JSON, ready to translate
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npm run i18n -- --prune # drop entries the code no longer uses
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```
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`npm test` runs the same check. It fails on a missing, empty or unused entry, on placeholders that differ from the English, on a missing plural form, and on text or plural forms still in English. The `--missing` template fails until every entry is translated. If an entry is right in English (a code such as CRT, a product name), add it under your language code in `src/i18n/same-as-english.json`.
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Changing English text changes its key: the old translation becomes unused and the new text shows as missing. Translate it and prune.
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## Fixing a translation
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Edit `src/i18n/locales/<code>.json` and run `npm run i18n`. To see your change, open the app with `?lang=<code>`.
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## Adding a language
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1. Create `src/i18n/locales/<code>.json`, fill it from `npm run i18n -- --missing <code>` (start from `{}`), and translate every entry.
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2. Import it in `src/i18n/index.js` and add it to `CATALOGS`.
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3. Add the code to `LOCALES` and its own-language name to `LOCALE_NAMES` in `src/i18n/locale.js`. Right-to-left languages also go in `RTL_LOCALES`.
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4. Add `src/i18n/locales/<code>.json` next to `ru.json` in `scripts/package-boundaries.json`.
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5. Write `docs/translations/<code>.md`: glossary, plural forms, units and style (copy the structure of `ru.md`).
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6. Run `npm run i18n` and `npm test`, then check the panels in the app at narrow widths.
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## Rules
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- Keep every `{placeholder}` name exactly as in the English: do not rename, drop or add one. Its position inside the sentence follows the grammar of your language, e.g. `"{accepted} of {raw} records accepted"` → `"принято записей: {accepted} из {raw}"`.
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- UPPERCASE English stays UPPERCASE. Short labels, chips and HUD readouts should stay short; prefer an abbreviation over a wrapped line.
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- Keep the separators `·`, `—`, `→`, `↗`, `…`.
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- 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).
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- Units follow the language's convention; see the language notes.
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## Never translated
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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.
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## Language notes
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Each language keeps its glossary, plural forms, units and style in its own file, `docs/translations/<code>.md`: [Spanish](./translations/es.md), [French](./translations/fr.md), [Russian](./translations/ru.md), [Simplified Chinese](./translations/zh-CN.md), [Traditional Chinese](./translations/zh-Hant.md). Read it before translating, and add a term there when you settle on one.
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