Lcoding15andClaude Opus 5.5 96db0e3bb5 M2: Type 0 fonts with /ToUnicode /Identity-H read codes as Unicode ...

WSCAD (and other CAD exporters) write `/ToUnicode /Identity-H` — a name,
not a CMap stream — on composite fonts whose two-byte codes are the UTF-16
code units. Acrobat, MuPDF and pdf.js read each code as its Unicode value.
hayro resolved the name to the Identity CMap, which maps codes to CIDs only,
so such pages had no text at all: nothing could be selected, searched,
copied or edited (147 of 147 pages of a WSCAD schematic).

- vendored hayro-interpret patch 35: `Type0Font::identity_to_unicode`
- crates/fonts: the same reading for Edit text, find and redaction
  (controls and lone surrogates map to nothing; simple fonts unaffected)

Tests fail without the fix: render `identity_to_unicode_names_give_text`,
fonts `identity_to_unicode_names_read_codes_as_unicode`.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-19 16:20:28 +00:00

..

examples

M2: heavy-sheet generator and page timing harness (item 8 of storytold/pdfcraft#623) (#2042)

2026-10-15 02:40:26 -04:00

src

M2: Type 0 fonts with /ToUnicode /Identity-H read codes as Unicode

2026-10-19 16:20:28 +00:00

tests

M2: Bound literal text search with prefix matching (#1725)

2026-10-15 02:21:53 -04:00

Cargo.toml

Reading colours: replace document colours for reading comfort (#897) (#1270)

2026-10-12 02:49:31 -04:00