BLOCKER fixes:
1. Remove duplicate ns_ax_face_is_selected, ns_ax_selected_overlay_text,
ns_ax_selected_child_frame_text definitions from patch 0002
(now defined only in 0007/0008 where they belong)
2. Fix idx → point_idx in accessibilityInsertionPointLineNumber (0002)
3. Remove stale 100K cap reference from documentation (0006)
Architecture fix:
- ns_ax_selected_child_frame_text moved from 0007 to 0008
(where it logically belongs)
Verified: all 8 patches apply cleanly on fresh emacs HEAD.
- 0001: remove NS_AX_TEXT_CAP (100K char cap), add lineStartOffsets/
lineCount ivars and method declarations to nsterm.h
- 0002: add lineForAXIndex:/rangeForLine: O(log L) helpers, build line
index in ensureTextCache, replace O(L) line scanning in
accessibilityInsertionPointLineNumber/accessibilityLineForIndex/
accessibilityRangeForLine, free index in invalidateTextCache/dealloc
- 0009 deleted (folded into 0001+0002)
- README.txt: remove NS_AX_TEXT_CAP references, update known
limitations, stress test threshold 50K lines
Split VoiceOver accessibility into 4 logical patches:
0001: Base classes + text extraction (+753)
0002: Buffer/ModeLine/InteractiveSpan implementations (+1716)
0003: EmacsView integration + cursor tracking (+395)
0004: Documentation with known limitations (+75)
Each patch is self-contained: 0001 adds infrastructure that compiles
but doesn't change behavior. 0002 adds protocol implementations.
0003 wires everything into EmacsView. 0004 documents for users.
All patches verified: apply cleanly to current Emacs master,
final state identical to original monolithic patch.
