Hojun-Cho
48904e5ef3
findall (regex.ha:923-960) over the memio seeker: one fixed stream for the whole string, per-call suffix substring, absolute io.seek(SET) past the scanner readahead after each match. The append-then-mutate m[0] fix-up is verbatim Hare (the appended header shares m's backing); the zero-length-match rune advancement guard (ha:946-952) carries the infinite-loop protection. search's |success|=2 unwrap is the D13 explicit 3-arm match (ww-core #14); nomem propagates. result_freeall (ha:1119-1124) verbatim, frees no-op (#27). Tests port Hare's own findall table (+test.ha:719-731, the three fold-2a-reachable rows) through run_findall_case's checks, plus field rows pinning adjacency, the one-result overlap pick, multibyte zero-length advancement (utf8sz step != 1), idx != bytesize, the tail-match break, and the empty no-match slice. 989's run gets the conventional timeout-180 wrap: a regression of the zero-length guard would otherwise hang the gate (no-op frees, so no quick OOM exit).