i18n-rtl-l10nlisted

Enforces the gen-l10n/ARB localization contract: every user-facing string routed through AppLocalizations from a template app_en.arb with key + placeholder parity across locales, nullable-getter:false so a missing key is a compile error, ICU plural/select over string concatenation, Directional-only geometry (EdgeInsetsDirectional, AlignmentDirectional, TextAlign.start, Icons.adaptive) for correct-by-construction RTL, one FSI/PDI bidi-isolation helper for mixed-script runs, per-locale NumberFormat with a pinned numbering system fed to chrome and canvas alike, canonical UTC-epoch + ASCII storage with calendar/numeral projection only at render, and normalize-to-ASCII before any numeric parse. Use when adding or translating an ARB key, building an RTL screen, formatting or parsing dates/numbers/numerals, wiring l10n.yaml, AppLocalizations, or MaterialApp localization delegates, isolating technical IDs like an account or order reference, or touching app_*.arb.
zakariaf/CatchLaw · ★ 0 · Data & Documents · score 55

Install: claude install-skill zakariaf/CatchLaw

# i18n, RTL & Localization One contract: **store canonical, localize at render.** Every conversion and formatting lives in one `l10n` layer; feature widgets receive value objects and already-localized strings, never raw formatting logic. RTL is a layout discipline, not a translation task — author with logical geometry so it mirrors by construction. Applies to any app that ships more than one locale or any RTL locale (Arabic, Persian, Hebrew, Sorani Kurdish, Urdu). Read the reference for the task at hand: - `references/arb-and-icu.md` — the ARB add/translate workflow, `l10n.yaml`, ICU plural/select, placeholder typing. - `references/rtl-and-bidi.md` — the directional-geometry allow/ban table, icon mirroring, bidi isolation, CustomPainter pinned LTR, RTL charts. - `references/numerals-and-calendars.md` — digit systems, separator traps, format/parse, calendar projection. Run `scripts/check_arb_parity.sh` and `scripts/check_i18n_bans.sh` before a PR. ## Non-negotiable rules 1. **Every user-facing string goes through gen-l10n.** Add the key to the template `app_en.arb` first, then read it via `AppLocalizations.of(context)`. Set `nullable-getter: false` in `l10n.yaml` so the getter is non-null and a missing/typo key is a **compile error**, not a silent empty widget. Never hardcode a literal in `Text`, `tooltip:`, `label:`, `hint:`, or `semanticsLabel:`. Never call `AppLocalizations.of` above the `Localizations` scope (e.g. in `main()` before `runApp`). 2. **Key