This commit adds the codespace range parser for CMap streams. The parser extracts the begincodespacerange / endcodespacerange blocks that define legal byte-width boundaries for character codes in a CMap. ## Implementation - CodespaceRange: Single range with lo/hi bounds (stored as [u8; 4]) and width (1-4 bytes) - CodespaceRanges: Collection with SmallVec<[CodespaceRange; 8]> - CodespaceParser: PostScript-style tokenizer for begincodespacerange blocks ## Acceptance Criteria (all PASS) - Parse <00> <7F> → 1 range, width=1 ✅ - Parse <00> <7F> <8000> <FFFF> in one block → 2 ranges ✅ - Width inference: 2-char hex → width=1; 4-char hex → width=2 ✅ - Case-insensitive hex (<C0> and <c0> equivalent) ✅ - Malformed range (width mismatch) → diagnostic + skipped ✅ - Empty CMap → empty ranges ✅ - JIS range <8140> <FEFE> → 2-byte CJK ✅ - 3-byte and 4-byte range support ✅ Also adds encrypted fixture provenance entries to PROVENANCE.md. Co-Authored-By: Claude Code <noreply@anthropic.com> |
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| book_chapter | ||
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| scientific_paper | ||
| slide_deck | ||
| PROVENANCE.md | ||