f804887a86
Implement a registry of the 9 named CMaps PDF readers MUST support without an embedded CMap stream: Identity-H, Identity-V, and 8 UTF16 CMaps (UniJIS-UTF16-H/V, UniGB-UTF16-H/V, UniCNS-UTF16-H/V, UniKS-UTF16-H/V). - Added PredefinedCMap struct with name, is_vertical, collection fields - from_name() resolves all 10 predefined CMap names - decode_bytes() reads 2-byte big-endian codes as CIDs - cid_to_unicode() maps CIDs to Unicode codepoints (None for Identity-H/V) - Build-time generation of PHF maps from JSON files - Feature flag 'cjk' controls ~1.2 MB UCS2 map inclusion (default off) Acceptance criteria: - All 10 names resolve via from_name() - Identity-H decodes [0x00, 0x41] to CID 65 - UniJIS-UTF16-H decodes CID 236 to U+3042 (あ) - Vertical (V) variant returns identical CID->Unicode as Horizontal (H) - Unknown name returns None - Feature flag 'cjk' controls UCS2 map inclusion Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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50 B
JSON
5 lines
No EOL
50 B
JSON
{
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"964": "一",
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"965": "丁",
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"966": "丂"
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} |