The RSVP word window split each word into before/orp/after spans at the
ORP index and laid them out left-to-right. Slicing an Arabic/Hebrew word
by character index breaks letter shaping (letters stop connecting, some
slices render as notdef boxes) and the LTR layout reverses the visual
order, so e.g. علم showed as disconnected, out-of-order letters.
Detect RTL text and render the word as a single centered span — reusing
the existing CJK Highlight Word path — with dir="rtl" so the browser
shapes and orders it correctly, matching the context panel. ORP anchoring
is meaningless for unsplittable shaped scripts, so RTL always renders
whole; no new toggle.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Huang Xin
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