kiahk 0.1.5

Coptic calendar arithmetic — date conversion, Easter, and feast days. Identical results across 7 language ports.

Changelog

0.1.5

• Coordinated release across all ports — no Dart API changes since 0.1.4.
• Two new sibling ports land in the same release: PHP (wizardlabz/kiahk on Packagist) and Kotlin/JVM (com.wizardlabz:kiahk on Maven Central, Android-compatible at API 26+).
• Dart-side: added example/kiahk_example.dart and missing dartdoc on CopticDate.year/month/day + CopticMonthRecord.month. Targets pub.dev's full 160/160 score.

0.1.4

• Coordinated release across all ports. No Dart API changes since 0.1.3 — only release-plumbing changes.
• The Go port's go.mod moved to the repo root, so the whole repo now uses a single tag scheme (v0.1.4, v0.1.5, …). No more go/vX.Y.Z subdirectory prefix needed.
• CocoaPods publishing fixed (Xcode SWIFT_VERSION compatibility).
• pub.dev release workflow now skips publishing gracefully if the version is already on pub.dev (so re-runs and the manual-bootstrap pattern don't surface as workflow failures).

0.1.3

• First Dart release on pub.dev.
• Coordinated release with kiahk@0.1.3 on npm, kiahk==0.1.3 on PyPI, and github.com/amir-magdy-of-wizardlabz/kiahk/go@v0.1.3 on pkg.go.dev — all ports produce identical results against core/test-vectors.json.

Features

• GregorianDate(y, m, d) and CopticDate(y, m, d) with validating constructors that throw InvalidGregorianDateException / InvalidCopticDateException on out-of-range input.
• GregorianDate.toCoptic() (extension) / CopticDate.toGregorian() conversions.
• GregorianDate.toDateTime() / GregorianDate.fromDateTime(dt) interop with Dart's DateTime.
• CopticCalendar.easterDate(year), CopticCalendar.moveableFeast(id, year), CopticCalendar.yearFeasts(year) for feast lookups (en + ar names).
• CopticCalendar.monthName(month, locale) plus kCopticMonths data for rendering Coptic month names in English or Arabic.
• Low-level algorithm functions exposed: gregorianToJdn, jdnToGregorian, copticToJdn, jdnToCoptic, gregorianToCoptic, copticToGregorian, computeEaster, addDays.