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591 Commits

Author SHA1 Message Date
Markus Triska
7c96b91663 remove nth1/3, which is now provided by library(lists) 2022-10-26 23:36:07 -06:00
Markus Triska
87e966e185 remove nth1/3, which is now provided by library(lists) 2022-10-26 23:36:07 -06:00
Markus Triska
1e018681de ENHANCED: Much improved nth0/3, taken from #1529. 
This also adds nth0/4 and bootstraps nth1/[3,4] from it.
 2022-10-26 23:36:07 -06:00
Markus Triska
5b324680ba ADDED: must_be/can_be(not_less_than_zero, ...) 
See #1309.
 2022-10-26 23:36:07 -06:00
Markus Triska
abca5fc405 better implementation of list_si/1 
Per discussion in https://github.com/mthom/scryer-prolog/pull/1589.
 2022-10-26 23:36:07 -06:00
Markus Triska
6a455d2866 ADDED: chars_si/1, testing for a string 
Examples:

    ?- chars_si("hello").
       true.

    ?- chars_si(5).
       false.

    ?- chars_si([a,b,c|Rs]).
       error(instantiation_error,sort/2).
 2022-10-26 23:36:07 -06:00
Markus Triska
70da818101 use new domain names from library(error): octet_character, octet_chars 2022-10-26 23:36:07 -06:00
Markus Triska
5ec837acb4 ADDED: octet_character and octet_chars, testing for strings that represent bytes. 2022-10-26 23:36:07 -06:00
Markus Triska
76e33d051c rely on the built-in DCG expansion, per discussion in #1577 2022-10-26 23:36:07 -06:00
Markus Triska
7c5318b784 ENHANCED: Use '$skip_max_list'/4 for greater efficiency of nth0/3. 
This is now possible due to 4c7e2eb8614da9c04f2286f6116b468017fb442c.

See #1529 for the suggestion by @UWN.
 2022-10-26 23:36:07 -06:00
Markus Triska
47892bf24a ENHANCED: Improve determinism of ... //0 and seq//1. 
Example:

    ?- phrase(..., "hello").
       true.

This addresses #1577.
 2022-10-26 23:36:07 -06:00
Mark Thom
d4c0277065 don't return ops with priority 0 when building set for current_op (#1571) 2022-10-26 23:36:07 -06:00
Mark Thom
4e6c138099 introduce expand_call_goal/3 to expand goals in control meta-predicates (#1568) 2022-10-26 23:36:07 -06:00
Markus Triska
0ab355eada use a DCG to describe the path 2022-10-26 23:36:07 -06:00
Markus Triska
44825826df remove entailed must_be/2 goals 2022-10-26 23:36:07 -06:00
Markus Triska
612f09893c use newly available ... //0 from library(dcgs) 2022-10-26 23:36:07 -06:00
Markus Triska
e9f507b868 add meta_predicate/1 declaration for phrase_to_file/3 2022-10-26 23:36:07 -06:00
Mark Thom
78278c804f strip modules from GRBody in phrase/3 (#1565) 2022-10-26 23:36:07 -06:00
Mark Thom
b51460a59a fail on non-list solutions in setof/3 (#1553) 2022-10-26 23:36:07 -06:00
Adrián Arroyo Calle
181be5be3f HTTP Server 2.0 2022-10-26 23:36:07 -06:00
Mark Thom
91d4e91f53 prefix inlined goals with module names in expand_subgoal/5 (#1551) 2022-10-26 23:36:07 -06:00
Markus Triska
c7caf6b7a9 ENHANCED: CLP(ℤ): Reduce redundant propagator invocations during all_distinct/1 filtering 
First, the current propagator is now logged and not re-triggered
during filtering. Second, and more significantly, all neq_num/2
constraints are scheduled and processed before more global constraints
are invoked. In this way, all the distilled information can be taken
into account by subsequently invoked global constraints.

These changes yield a 3-fold improvement in several Sudoku instances,
and a significant runtime reduction in social golfer instance 8-4-9.
 2022-10-26 23:36:07 -06:00
Markus Triska
4422ffe39f add meta_predicate/1 declarations 2022-10-26 23:36:07 -06:00
Mark Thom
1ff52f70aa resolve phrase modules internally (#1541) 2022-10-26 23:36:07 -06:00
Mark Thom
b8f384045c fix module resolution in dcgs, call/N (#1539) 2022-10-26 23:36:07 -06:00
Mark Thom
5a08117e75 use separate predicate for findall cleanup 2022-10-26 23:36:07 -06:00
Mark Thom
6b05ee5130 streamline assertz/1, asserta/1 2022-10-26 23:36:07 -06:00
Mark Thom
1ffbf63d20 inline metacalls 2022-10-26 23:36:07 -06:00
Mark Thom
607c84a79b capture and propagate (=..)/2 errors in phrase/{2,3} (#1460) 2022-06-21 22:47:55 -06:00
Mark Thom
987bbdecf5 improve efficiency of call/N, replace '$call_with_default_policy' with 
'$call_with_inference_counting'
 2022-06-12 22:34:07 -06:00
Mark Thom
336311ecc8 replace call with $call in more meta-predicates 2022-06-06 09:28:03 -06:00
Mark Thom
4b7c2ba6c8 fix off-by-one error reporting in write_term/3 (#1490) 2022-05-30 23:25:44 -06:00
Markus Triska
6b49653754 use in_character 
This addresses one aspect of #1472.
 2022-05-22 23:04:27 +02:00
Markus Triska
d5fa8cc211 ADDED: must_be(in_character, ...) and can_be(in_character, ...) 2022-05-22 23:04:27 +02:00
Markus Triska
47a6b498e3 ENHANCED: "f" on toplevel to report answers up to the next multiple of 5. 
This makes counting solutions easy.
 2022-05-21 18:20:08 +02:00
Mark Thom
b6f77f4e6f check asserta/2, assertz/2, abolish/2 for uninstantiated Module variables (#1475) 2022-05-16 20:45:45 -06:00
Mark Thom
b96cd06129 detect character type errors in atom_{chars|codes}/2 (#1472) 2022-05-16 16:32:38 -06:00
Markus Triska
18c52e076f indent enumerations 2022-05-15 10:55:56 +02:00
Markus Triska
1810dabc14 clarify the representation 2022-05-15 10:55:27 +02:00
Markus Triska
609a3a229f strengthen and improve type checks 2022-05-15 10:51:00 +02:00
Markus Triska
dff56643f0 clarify comment 2022-05-15 10:23:00 +02:00
Markus Triska
77f8d52271 use phrase_from_file/2 directly on the file name 2022-05-15 10:19:00 +02:00
Markus Triska
a5e72679bc prioritize type errors over instantiation errors 
Example:

    ?- must_be(chars, [a,X,cc]).
       error(type_error(character,cc),can_be/2).

See https://github.com/mthom/scryer-prolog/pull/1474#issuecomment-1126664368
 2022-05-14 09:53:21 +02:00
Markus Triska
15cc916333 FIXED: can_be(chars, [a,X]), i.e., if variables occur as elements 
This should simplify 2f3de51e55 and
other cases like it.
 2022-05-14 08:39:20 +02:00
Mark Thom
2f3de51e55 remove non-determinism in number_chars/2 and numbercodes/2 (#1473) 2022-05-13 18:38:58 -06:00
Mark Thom
cea1353fbb use must_be(chars) in number_chars/2 (#1470) 2022-05-12 01:09:06 -06:00
Markus Triska
d58dd7cc91 ADDED: sign/1 2022-05-05 22:51:49 +02:00
Markus Triska
7e06abebd5 remove comment that seems no longer valid 2022-05-05 22:51:49 +02:00
Mark Thom
0f502fff84 compact lists of characters to partial strings in read_term_from_heap (#1452, #1453) 2022-05-03 19:12:16 -06:00
Mark Thom
23c4e935b4 Merge pull request #1436 from triska/must_be_term 
ADDED: can_be(term, ...) and must_be(term, ...)
 2022-04-26 13:31:43 -06:00