A pure Dart package, without Flutter, for the app that the author will
write in Flutter (docs/PLAN_dart.md, stage 0):
- pubspec.yaml: the package datekeys, unpublished, for Dart 3.13; at run
time only package:crypto, and in development only package:test, which
the author approved on 5 October.
- testdata/ vendored from datekeys-go at the tag spec-v0.11 (ae33434),
124 files, with the same testdata/SOURCE.json that datekeys-ts writes for
that commit.
- tool/sync_testdata.dart, the port of scripts/sync-testdata.mjs, and
test/testdata_test.dart, which checks the copy and that every file names
specVersion; test/version_test.dart keeps pubspec.yaml and
lib/src/version.dart in step.
- tool/check.sh, the local gate: format, analysis with every info fatal,
tests, and the copy against ../datekeys-go.
- The licence, Apache-2.0, as the other two implementations.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>