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664 Commits

Author SHA1 Message Date
notoria
aa2d57cf37 Implemented a propagator for xor in CLP(Z) 2021-03-07 18:52:10 +01:00
notoria
f6d4821a68 Small improvement for mod in CLP(Z) 2021-03-07 18:38:04 +01:00
Markus Triska
842176a595 is is --> is 2021-03-05 18:36:00 +01:00
Markus Triska
0fb74b56b3 FIXED: CLP(B): weighted_maximum/3 with repeated variables 
Many thanks to @jburse for reporting this issue:

    https://github.com/triska/clpz/issues/15

Example:

    ?- sat(~(Y*X)), sat(Z=:=Y), weighted_maximum([7,2,5],[X,Y,Z],W).
       W = 7, Y = 0, X = 1, Z = 0
    ;  W = 7, Y = 1, X = 0, Z = 1
    ;  false.
 2021-03-05 18:35:19 +01:00
Markus Triska
87abcd6a52 adapt comment to Scryer Prolog 2021-03-05 18:16:38 +01:00
Markus Triska
d92951ba5b ENHANCED: more readable indentation of nested disjunctions 
Example:

    ?- portray_clause((h :- a ; b ; c)).
    h :-
       (  a
       ;  b
       ;  c
       ).
       true.
 2021-03-04 21:40:24 +01:00
Markus Triska
c5749cbbb1 remove unnecessary argument 2021-03-04 21:40:24 +01:00
Markus Triska
6477d21e24 ENHANCED: more readable indentation of nested ( If -> Then ; Else ) constructs 
Example:

    ?- portray_clause((h :- ( a -> b ; c -> d ; e, f))).
    h :-
       (  a ->
          b
       ;  c ->
          d
       ;  e,
          f
       ).
       true.
 2021-03-03 22:34:09 +01:00
Markus Triska
5b60c8aa7e remove min_/3 and max_/3 which are also defined elsewhere 2021-03-02 19:59:57 +01:00
Markus Triska
8c5a688566 remove group_pairs_by_key/2, which is now provided by library(pairs) 2021-03-02 19:58:20 +01:00
Mark Thom
5976e2d873 do not check for non-unifiability in dif:attribute_goals, which is sure to succeed, resulting in no goals being printed at top-level (#844) 2021-03-02 10:34:25 -07:00
Mark Thom
498c4660d0 use plain ! while interpreting control functors in metacalls (#724) 2021-02-28 19:12:35 -07:00
Mark Thom
6079402dc4 suppress tabled/2 existence errors in tabling library, do not print evaluation errors generated by term and goal expansion in loader.pl 2021-02-28 18:56:24 -07:00
Mark Thom
101ed9a633 add error value to occurs_check prolog flag (#783) 2021-02-28 11:44:23 -07:00
Mark Thom
a367812348 add occurs_check flag (#309) 2021-02-28 10:41:32 -07:00
Mark Thom
064d261357 implement logical update semantics for dynamic database predicates 2021-02-27 23:33:10 -07:00
Markus Triska
aecbd0eda3 omit internal residual goals for global_cardinality/2 2021-02-25 23:12:36 +01:00
Markus Triska
2c1b7e3b14 remove unused attribute_goal/2 2021-02-25 23:12:36 +01:00
Markus Triska
e0c98a5c79 adapt libraries and toplevel output to Scryer Prolog 2021-02-25 22:08:25 +01:00
Markus Triska
dfb60ec2ed use individual meta_predicate/1 declarations 2021-02-25 22:08:25 +01:00
Markus Triska
b85e260b92 ADDED: library(lambda) by Ulrich Neumerkel. 
Source: http://www.complang.tuwien.ac.at/ulrich/Prolog-inedit/lambda.pl

More information:

    http://www.complang.tuwien.ac.at/ulrich/Prolog-inedit/ISO-Hiord
 2021-02-25 22:08:00 +01:00
Mark Thom
4d72845c58 add copy_term_nat/2 (#795) 2021-02-22 22:39:34 -07:00
Mark Thom
6c447da730 no longer generate a choice point in bb_b_put/2 (#742) 2021-02-22 18:27:30 -07:00
Mark Thom
f6498f2a7b anonymize singleton variables in iso_ext.pl, charsio.pl 2021-02-21 19:20:42 -07:00
Mark Thom
0ef5f7f9b1 issue singleton variable warnings from loader.pl (#812) 2021-02-21 19:20:42 -07:00
Mark Thom
d5581ffd05 Merge pull request #834 from aarroyoc/rebis-http 
Fix HTTP server in rebis
 2021-02-21 13:32:09 -07:00
Adrián Arroyo Calle
77968ab33a Fix typo 2021-02-21 21:08:03 +01:00
Adrián Arroyo Calle
265a5955d7 Use notoria's comment 2021-02-21 20:22:08 +01:00
Mark Thom
465ab2fa34 Merge pull request #830 from aarroyoc/rebis-http 
Fix HTTP server on Rebis. Breaking change
 2021-02-21 12:10:09 -07:00
Mark Thom
fec790e108 correct comment before call meta_predicate declarations 2021-02-20 19:10:34 -07:00
Adrián Arroyo Calle
b565eaaf5a Fix HTTP server to work on Rebis branch. Breaking change 2021-02-19 00:13:00 +01:00
Adrián Arroyo Calle
77ec8ebfc3 UUIDv4 generation 2021-02-18 22:16:24 +01:00
Markus Triska
b3db8913c6 enable meta_predicate/1 declarations 2021-02-18 20:19:23 +01:00
Markus Triska
5bec2c87cb add appropriate meta_predicate/1 declarations 2021-02-18 20:15:04 +01:00
Markus Triska
71a524662d add appropriate meta_predicate/1 declarations 2021-02-18 19:16:11 +01:00
Mark Thom
2a70ca375c restore support for tabling and delimited continuations (#779) 2021-02-17 16:18:49 -07:00
Mark Thom
f9b98f97b6 remove unnecessary cause of failure in parser, qualify call to op_/3 in builtins.pl 2021-02-17 11:56:58 -07:00
Mark Thom
00bf39204d add missing variable checks in various places 2021-02-17 11:12:19 -07:00
Mark Thom
ce8490ed41 Merge pull request #813 from triska/rebis-dev 
~| now incorporates the number of characters described so far
 2021-02-09 17:57:08 -07:00
Mark Thom
4d29a3ae3c check for control functors (,/;/->) before jumping to internal interpretation (#815) 2021-02-09 16:40:25 -07:00
Markus Triska
1bdfc5a1a4 ~| now incorporates the number of characters described so far 
Therefore, subsequent uses of ~N| now yield the specified column,
instead of potentially overshooting.

Example:

    ?- format("hello~|~t~8|!", []).
    hello   !   true.

Such cases are probably rather uncommon: Relative positioning with ~N+
is more likely to be used in such cases, and that worked as intended
also previously as it does now:

    ?- format("hello~|~t~3+!", []).
    hello   !   true.

In fact, if absolute positions are used, then ~| can be omitted entirely:

    ?- format("hello~t~8|!", []).
    hello   !   true.
 2021-02-09 20:55:46 +01:00
Mark Thom
30602c0849 clean up implementation of (->)/2, (;)/2, and (,)/2 2021-02-07 21:13:27 -07:00
Mark Thom
49b1c1368e remove dynamic clause declaration for clause internal 2021-02-05 23:16:42 -07:00
Mark Thom
bdb5df104a shed module names from arguments of the (->)/2, (,)/2, (;)/2 predicates 2021-02-05 22:50:57 -07:00
Mark Thom
700778e574 collate paths as atoms in loader.pl (#778) 2021-02-05 20:18:56 -07:00
Mark Thom
bbbf95705b implement abolish/1 2021-02-05 18:35:06 -07:00
Mark Thom
927871d73d Merge branch 'rebis-dev' of https://github.com/mthom/scryer-prolog into rebis-dev 2021-02-05 17:17:14 -07:00
Mark Thom
3fc2c4223b delay premature set_switch_var_offset_* calls in retract_clause, add module resolution for asserta/assertz/retract/clause 2021-02-05 17:12:25 -07:00
Markus Triska
a228e46a39 ENHANCED: Enable goal expansion for CLP(ℤ). 
This is now possible since #445 is resolved.
 2021-02-05 21:06:08 +01:00
Markus Triska
81913a5987 Revert "preliminary workaround for #788" 
This reverts commit 164b993064,
which was made obsolete by 75a52f032b.
 2021-02-05 20:59:47 +01:00