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Meta/logic predicates: \\+/not/once/ignore/ground/sort/msort/atom_number/number_string (+25 tests, 342 total)
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Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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giles
2026-04-25 11:06:10 +00:00
parent 8ee0928a3d
commit 0823832dcd
6 changed files with 396 additions and 6 deletions
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@@ -88,6 +88,7 @@ Representation choices (finalise in phase 1, document here):
_Newest first. Agent appends on every commit._
- 2026-04-25 — Meta/logic predicates: `\+/1` (negation-as-failure, trail-undo on success), `not/1` (alias), `once/1` (commit to first solution via if-then-else), `ignore/1` (always succeed), `ground/1` (all vars bound), `sort/2` (sort + dedup by formatted key), `msort/2` (sort, keep dups), `atom_number/2` (bidirectional), `number_string/2` (bidirectional). 2 helpers (`pl-ground?`, `pl-sort-pairs-dedup`). 25 tests in `tests/meta_predicates.sx`. Total **342** (+25).
- 2026-04-25 — ISO utility predicates batch: `succ/2` (bidirectional), `plus/3` (3-mode bidirectional), `between/3` (backtracking range generator), `length/2` (bidirectional list length + var-list constructor), `last/2`, `nth0/3`, `nth1/3`, `max/2` + `min/2` in arithmetic eval. 6 new helper functions (`pl-list-length`, `pl-make-list-of-vars`, `pl-between-loop!`, `pl-solve-between!`, `pl-solve-last!`, `pl-solve-nth0!`). 29 tests in `tests/iso_predicates.sx`. Phase 6 complete: scoreboard already at 317, far above 200+ target. Hyperscript DSL blocked (needs `lib/hyperscript/**`). Total **317** (+29).
- 2026-04-25 — `prolog-query` SX API (`lib/prolog/query.sx`). New public API layer: `pl-load source-str → db`, `pl-query-all db query-str → list of solution dicts`, `pl-query-one db query-str → dict or nil`, `pl-query src query → list` (convenience). Each solution dict maps variable name strings to their formatted term strings. Var names extracted from pre-instantiation parse AST. Trail is marked before solve and reset after to ensure clean state. 16 tests in `tests/query_api.sx` cover fact lookup, no-solution, boolean queries, multi-var, recursive rules, is/2 built-in, query-one, convenience form. Total **288** (+16).
- 2026-04-25 — String/atom predicates. Type-test predicates: `var/1`, `nonvar/1`, `atom/1`, `number/1`, `integer/1`, `float/1` (always-fail), `compound/1`, `callable/1`, `atomic/1`, `is_list/1`. String/atom operations: `atom_length/2`, `atom_concat/3` (3 modes: both-ground, result+first, result+second), `atom_chars/2` (bidirectional), `atom_codes/2` (bidirectional), `char_code/2` (bidirectional), `number_codes/2`, `number_chars/2`. 7 helper functions in runtime.sx (`pl-list-to-prolog`, `pl-proper-list?`, `pl-prolog-list-to-sx`, `pl-solve-atom-concat!`, `pl-solve-atom-chars!`, `pl-solve-atom-codes!`, `pl-solve-char-code!`). 34 tests in `tests/atoms.sx`. Total **272** (+34).