Like tp-at but distinguishes a property present with value nil from an
absent property, returning (PROPERTY VALUE) or nil. Covered by four
new tests in tp-ops-tests.el; full suite 338/338 green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
ops/core (B1-B8): tp-remove no longer drops 3rd+ properties; string
removal is per-interval via tp--map-intervals instead of smearing
position-0 props; tp-clear defaults bounds from OBJECT; (tp-get STR N N)
works like the buffer region form; no bogus (:key nil) from trailing
bare keywords; region form signals immediately on flat PROP/VAL args;
face-family prepend semantics extended to font-lock-face/mouse-face.
builtins/palette (B45-B51): Emacs 28.1 compat for plistp/subr-x;
display-buffer macros use a minor-mode keymap instead of mutating the
major-mode map; tp-link resolves palette colors lazily (theme-correct);
tp-palette-alist is the single source of truth (stale defvars dropped);
tp-headline handles integer heights; tp-space matches its documented
pixel spec; tp-parse-color accepts one-sided cons colors.
Test infra: fixture gains unwind-protect teardown via tp-layer-reset
(incl. transforms); file header/provide renamed to tp-tests; suite is
order-independent (verified with shuffled runs). Adds Makefile with
test/compile/clean targets.
334 tests green (280 legacy + 54 new regression tests).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
