add CP 1256 - #33
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* fix: close five more open upstream issues and adopt two stalled PRs A sweep of everything still open on iarna/rtf-parser that is a defect rather than a feature request. Each change carries a regression test using the reporter's own reproduction where they supplied one. interpreter: accept both the signed and unsigned forms of \uN The spec writes a code unit above 32767 as a negative number; plenty of producers emit the unsigned value instead, and writeInt16LE threw ERR_OUT_OF_RANGE on those -- an uncaught crash rather than a wrong character. A negative value is now normalised to its unsigned counterpart and anything outside the UTF-16 range is skipped rather than thrown. Adopts upstream PR iarna#28 by @UKayeF, whose diagnosis was right; the naive swap to writeUInt16LE in that PR would have broken the SIGNED form instead (writeUInt16LE(-1) throws), so this handles both. Closes: iarna#28. Also fixes the emoji break reported in iarna#15: \u55357 \u56842 is a surrogate pair, and both halves exceed 32767. interpreter: \fcharset238 is CP1250, and \ansicpg1256 is available 'CP238' was never a code page and iconv has never known it, so a document with an east-European font threw on its first hex escape. 1256 was mapped by font (\fcharset178) but rejected as a document code page. Adopts upstream PR iarna#33 by @facue. Closes: iarna#30, iarna#33. interpreter: decode the Symbol font instead of throwing on it \fcharset2 is a glyph set, not a code page -- iconv has no 'SYMBOL' encoding, so a Symbol font (which is how Word writes bullets) took the whole document down. Adds an Adobe Symbol table for the 0xA0..0xFE range where the list glyphs live, so \'b7 becomes a real bullet. Any charset iconv does not recognise now falls back to CP1252 with a debug note rather than aborting: one exotic font table should not cost the reader the entire file. Closes: iarna#15 (the reported break and the bullet case; the 0x20..0x7E Greek half is deliberately left unmapped and documented as such). interpreter: skip \pict payloads instead of emitting them as text RTF stores an image as a hex payload inside {\pict ...}. With no handler it was decoded as ordinary text, so a document's content gained a span of raw hex -- 'before 89504e470d0a...' -- corrupting text extraction and word counts. Marked ignorable, exactly as \stylesheet and \info already are. Closes: iarna#32. deps: drop readable-stream, iconv-lite@^0.7.3 Only Writable and Transform were used, both built into node for a decade, so this REMOVES the dependency rather than bumping it. Runtime dependencies go from two to one, and the remaining one is current (0.4.24 dated from 2018). Closes: iarna#37. Not addressed here, deliberately: iarna#35 tables -- a real feature, not a defect, and a large one. iarna#34 -- a support question about callbacks, not a bug in the parser. iarna#29 -- superseded: this fork already emits those six control words plus eight more. @wwwildcat got there first and deserves the credit. Verified: 19 tests / 44 assertions green across both suites, lint clean, and the 315k-character manuscript still extracts to exactly its \nofchars count (314,892) with zero replacement characters. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * docs: record the upstream issue sweep and bump to 2.1.0 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
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