09c3498cf4
Implements the 6 named-encoding character-code-to-glyph-name lookup
tables required by Level 2 of the encoding fallback chain:
- WinAnsiEncoding (Windows-1252 superset of StandardEncoding)
- MacRomanEncoding (Mac OS Roman encoding)
- MacExpertEncoding (Mac OS Expert character set)
- StandardEncoding (Adobe Standard encoding)
- SymbolEncoding (Symbol font encoding)
- ZapfDingbatsEncoding (Zapf Dingbats font encoding)
These tables map character codes (0-255) to glyph names, which are then
mapped to Unicode via the Adobe Glyph List (AGL).
Acceptance criteria:
- All 6 tables compile into static arrays with binary footprint < 30 KB
- WIN_ANSI[0x92] == Some("quoteright") (canonical WinAnsi test)
- MAC_ROMAN[0xD2] == Some("quotedblleft") and MAC_ROMAN[0xD3] == Some("quotedblright")
- STANDARD[0x20] == Some("space")
- NamedEncoding::from_name("WinAnsiEncoding") == Some(NamedEncoding::WinAnsi)
Files:
- crates/pdftract-core/build/named-encodings.json - Source data from ISO 32000-1 Annex D
- crates/pdftract-core/src/font/encoding.rs - Public API with NamedEncoding enum
- crates/pdftract-core/build.rs - Build script updates for encoding generation
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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| .. | ||
| pdftract-cer-diff | ||
| pdftract-cli | ||
| pdftract-core | ||
| pdftract-libpdftract | ||
| pdftract-py | ||