Changelog: 0.3.x

Archived verbatim from CHANGELOG.md. Newer releases are in the changelog; the archive index lists every older series.

[0.3.0] — 2026-03-28

Added

  • Unicode coverage expansion: 2,553 new codepoints across 33 Unicode blocks, bringing total translit_default.tsv entries from 6,633 to 9,186.

Tier 1 — Forms and extensions (~1,741 codepoints): - Fullwidth ASCII (FF01–FF5E): 94 characters, mechanical offset mapping - Halfwidth Hangul (FFA0–FFDC): 66 characters via compatibility jamo - Enclosed/Circled Alphanumerics (2460–24FF): 160 characters (①→1, Ⓐ→A) - Superscript/Subscript (2070–209F): 29 characters mapped to base forms - Roman Numerals (2160–2188): 41 characters (Ⅰ→I, Ⅱ→II, ... Ⅻ→XII) - Modifier Letters (02B0–02FF): 80 characters (ʰ→h, ʷ→w) - IPA/Phonetic Extensions (0250–02AF): 96 characters (ɑ→a, ʃ→sh, ŋ→ng) - Greek Extended (1F00–1FFF): 233 characters (polytonic → base Greek → Latin) - Hangul Jamo (1100–11FF): 256 individual jamo components - Kangxi Radicals (2F00–2FD5): 214 radical forms → pinyin via CJK decomposition - CJK Compatibility Ideographs (F900–FAFF): 472 characters → pinyin via canonical decomposition targets

Tier 2 — Living scripts (~812 codepoints): - Gap-filling for 7 partially-covered scripts: Balinese, Canadian Syllabics, Cherokee, Coptic, N'Ko, Syriac, Vai - 10 new abugida scripts with virama/inherent-vowel handling: Sundanese, Tai Tham, Cham, Batak, Buginese, Tagalog, Hanunoo, Buhid, Tagbanwa, Meetei Mayek - 4 new alphabetic/syllabic scripts: Tifinagh, Lisu, Ol Chiki, Bamum

  • Unicode range constants for 12 new scripts in src/unicode_ranges.rs: SUNDANESE, TAI_THAM, CHAM, BATAK, BUGINESE, TAGALOG, HANUNOO, BUHID, TAGBANWA, MEETEI_MAYEK, MEETEI_MAYEK_EXT.
  • 10 new *_char_role() functions in src/transliterate.rs for abugida virama handling (Sundanese, Tai Tham, Cham, Batak, Buginese, Tagalog, Hanunoo, Buhid, Tagbanwa, Meetei Mayek).
  • scripts/generate_unicode_expansion.py: reproducible generator script for all Tier 1 and Tier 2 TSV entries (1,310 lines).
  • cargo-clippy pre-commit hook mirroring CI -D warnings to catch lints before push.
  • Callable module: import translit; translit("Москва", lang="auto") now works as a shorthand for translit.transliterate(...). Uses in-place __class__ mutation to preserve unittest.mock.patch compatibility.

Fixed

  • Finnish transliteration: removed incorrect alias fi→sv. Finnish ä/ö are independent phonemes (→a/o via default table), not ae/oe variants as in Swedish/German. Hämäläinen now correctly produces Hamalainen.
  • Icelandic transliteration: removed incorrect ð→dh and Ð→Dh overrides. Default table already maps ð→d (ICAO/passport standard). Retained Æ→Ae override (differs from default AE). Icelandic override count reduced from 6 to 2.
  • clippy manual_range_patterns lint in buginese_char_role: collapsed 0x1A17 | 0x1A18 | 0x1A19..=0x1A1B to 0x1A17..=0x1A1B.
  • errors="preserve" dropping visible characters: characters with explicit empty-string TSV mappings (e.g. U+060E Arabic Poetic Verse Sign, U+30FC Katakana Prolonged Sound Mark) are now preserved instead of silently dropped when errors="preserve" is set.

Changed

  • is_indic() and indic_char_role() expanded to cover all 11 new Brahmic/abugida script ranges.
  • lookup_lang(): Finnish no longer dispatches to Swedish override table; falls through to default.
  • Icelandic language TSV (translit_lang_is.tsv) reduced from 6 to 2 entries.
  • ml_normalize preset: switched transliteration from Preserve to Ignore error mode — ML pipelines need clean ASCII output, not preserved non-ASCII.