tp-forward-do/tp-backward-do target the TIMES-th match specifically;
when fewer matches exist the string paths applied FUNCTION to the last
available match -- the wrong target -- while buffer paths applied
nothing. Both now apply nothing on shortfall and return the available
count. Updates the two legacy with-range tests that codified the
string behavior, adds four shortfall/exact-count regression tests, and
documents the contract in both READMEs and the docstrings. Suite
443/443 green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
tp--replace-match-text's string branch silently truncated longer
replacements and left residue on shorter ones ("<foo>" into a 3-char
match yielded "<fo"). Strings cannot change length in place, so the
honest contract is: same-length replacements mutate in place as before;
a different-length replacement signals a clear error directing the
caller to a buffer OBJECT. Buffer paths (delete+insert) are unchanged.
Updates the five tests that codified truncation/residue and adds a
same-length regression test; suite 439/439 green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
35 fixes across tp-layer.el, tp-stack.el, tp-search.el, tp-reactive.el
and tp-render.el, each empirically reproduced before and after:
layer-definition resolution/cycles/copying/cleanup, clipped region-local
stack mutators, symmetric backward search matching, length-changing
replacements, and reactive re-render correctness (replace-not-accumulate,
buffer-local isolation, batching union, per-interval props).
Adds four per-module regression suites (100 new tests); combined suite
is 438/438 green. tp-test-backward updated to the now-symmetric backward
matching contract it previously codified inverted. The string-vs-buffer
shortfall divergence in tp-forward-do/tp-backward-do is documented in
CHANGELOG as a known divergence rather than changed. Adds CHANGELOG.md.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
