Levi Neuwirth
87e88da024
Finding 1: codepoint recognition is now full UTF-8 scalar validation
(shared second-byte constraint table: overlongs, surrogates, and
beyond-U+10FFFF all fail), and transpose validates the scalar AT the
cursor trailing-bytes-included — a valid lead with non-continuation
trailing bytes fails closed, as does a length-consistent overlong or
out-of-range span behind the cursor. Zap's single-codepoint check
uses the same validator as defense-in-depth (minibuffer contents
arrive as Rust-side UTF-8; the buffer-facing checks are the
load-bearing ones).
Finding 2: capitalize is per-word across the span — Emacs
capitalize-region parity, verified against Emacs 30.2 ("hello WORLD"
-> "Hello World", "9abc a9bc" -> "9abc A9bc"); the one remaining
deviation is named and pinned: `_` is a word constituent in this
pack's ASCII class, so "foo_bar" -> "Foo_bar" versus Emacs's
"Foo_Bar".
Finding 3: an unexpected error caught by the trim-on-save outer
pcall is no longer discarded — it reports on the status line AND the
*errors* buffer via pmacs.error (the autosave sweep convention),
both pcall'd, still never vetoing the save.
All three fixes bite-verified: the five new/updated acceptance cases
fail against the pre-fix editops.lua (72 total now). Framing at
revision 6.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018vF4gQVozBWi38y1SJiGfQ
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