From 0be5eeafd8e86409a498cd0540beb5d90407db07 Mon Sep 17 00:00:00 2001 From: giles Date: Sat, 25 Apr 2026 12:42:21 +0000 Subject: [PATCH] Progress log: char_predicates batch, 432/432 --- plans/prolog-on-sx.md | 1 + 1 file changed, 1 insertion(+) diff --git a/plans/prolog-on-sx.md b/plans/prolog-on-sx.md index c9ecc8b2..23417df9 100644 --- a/plans/prolog-on-sx.md +++ b/plans/prolog-on-sx.md @@ -88,6 +88,7 @@ Representation choices (finalise in phase 1, document here): _Newest first. Agent appends on every commit._ +- 2026-04-25 — Char predicates: `char_type/2` (9 modes: alpha/alnum/digit/digit(N)/space/white/upper(L)/lower(U)/ascii(C)/punct), `upcase_atom/2`, `downcase_atom/2`, `string_upper/2`, `string_lower/2`. 10 helpers using `char-code`/`char-from-code` SX primitives. 27 tests in `tests/char_predicates.sx`. Total **432** (+27). - 2026-04-25 — Set/fold predicates: `foldl/4` (CPS fold-left, threads accumulator via `pl-apply-goal`), `list_to_set/2` (dedup preserving first-occurrence), `intersection/3`, `subtract/3`, `union/3` (all via `pl-struct-eq?`). 3 new helpers, 15 tests in `tests/set_predicates.sx`. Total **405** (+15). - 2026-04-25 — Meta-call predicates: `forall/2` (negation-of-counterexample), `maplist/2` (goal over list), `maplist/3` (map goal building output list), `include/3` (filter by goal success), `exclude/3` (filter by goal failure). New `pl-apply-goal` helper extends a goal with extra args. 15 tests in `tests/meta_call.sx`. Total **390** (+15). - 2026-04-25 — List/utility predicates: `==/2`, `\==/2` (structural equality/inequality via `pl-struct-eq?`), `flatten/2` (deep Prolog-list flatten), `numlist/3` (integer range list), `atomic_list_concat/2` (join with no sep), `atomic_list_concat/3` (join with separator), `sum_list/2`, `max_list/2`, `min_list/2` (arithmetic folds), `delete/3` (remove all struct-equal elements). 7 new helpers, 33 tests in `tests/list_predicates.sx`. Total **375** (+33).