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817 Commits

Author SHA1 Message Date
bakaq
cb79e83510 Avoid dif/1 attribute with empty list 
Closes #1956
 2023-09-21 14:00:37 -03:00
bakaq
a64a765f32 Improved dif/2 2023-09-20 20:56:04 -03:00
Mark
de440a8c92 get rid of OssifiedOpDir, DBRef, simplify current_op/3 2023-09-11 15:36:15 -06:00
Markus Triska
85cc4a80d0 remove code that is not needed in Scryer Prolog 2023-09-09 07:46:01 +02:00
Markus Triska
6fe85c5779 remove more attributes so that they do not appear in residual goals 2023-09-09 07:46:01 +02:00
Markus Triska
b38a56e7d3 move compatibility predicates and meta_predicate/1 declarations so that they are correctly taken into account 2023-09-09 07:46:01 +02:00
Markus Triska
ec67752db4 shorter partition/5, relying on first instantiated argument indexing 2023-09-09 07:32:06 +02:00
Markus Triska
ad4c17fbb6 add meta_predicate/1 declaration for include/3 and exclude/3 2023-09-09 07:32:06 +02:00
Markus Triska
672979c515 shorter include/3 and exclude/3, relying on improved indexing 2023-09-09 07:32:06 +02:00
Markus Triska
efcc2b81cd add licensing information, addressing part of #1798 2023-09-09 07:32:06 +02:00
Markus Triska
182afe3b7d update comment 2023-09-08 22:34:24 +02:00
Mark Thom
bf2b73706a Merge pull request #1997 from triska/countall 
Corrections to countall/2
 2023-09-05 12:04:52 -06:00
Mark
83ebce86b6 call_with_inference_limit/3 should fail if inference limit is exceeded and R term is not inference_limit_exceeded (#1977) 2023-09-05 11:51:06 -06:00
Markus Triska
1967518fa2 FIXED: documentation of countall/2 (#1976) 2023-09-05 19:42:55 +02:00
Markus Triska
d54c3369b3 FIXED: countall/2 for zero solutions (#1996) 
Example:

    ?- countall(false, 0).
       true.
 2023-09-05 19:39:05 +02:00
Mark
5585e83fd6 correct inference counting over index backtracking, built-ins (#1977, #1987) 2023-09-04 17:15:16 -06:00
Mark Thom
2ccc238119 Merge pull request #1991 from triska/discoverable_flags 
FIXED: make occurs_check and answer_write_options flags discoverable
 2023-09-03 18:39:24 -06:00
Markus Triska
aca0de06cd FIXED: make occurs_check and answer_write_options flags discoverable 
Quoting from 7.11 Flags:

   NOTE - A built-in predicate current_prolog_flag(Flag, Value)
   (8.17.2) enables a program to discover all the flags supported
   by a processor and their current values.
 2023-09-04 00:56:09 +02:00
Markus Triska
85f4bdbe0b update answer 2023-09-03 22:01:38 +02:00
Markus Triska
1257ba165f untabify 2023-09-03 21:57:51 +02:00
Markus Triska
1c33d2a2ed remove clpb_max/1 attribute for residual goal projection 
Example:

    ?- sat(A+B), weighted_maximum([1,1], [A,B], Max).
       A = 1, B = 1, Max = 2.
 2023-09-03 21:56:15 +02:00
Markus Triska
c934e06171 ADDED: New Prolog flag, answer_write_options. 
This lets us specify additional write options used by the top level
for writing answers.
 2023-09-03 10:49:07 +02:00
Markus Triska
75aec69de1 replace adjacent whitespace characters with a single SPACE character 2023-08-27 13:01:13 +02:00
Markus Triska
9b96735615 ENHANCED: rudimentary implementation of normalize_space 
This removes leading and trailing whitespace from the text. Whitespace
within the string is not yet considered.
 2023-08-27 09:56:30 +02:00
Markus Triska
98086de77e attach more propagators before starting propagation 
This prevents repeated triggering of already attached propagators
while new propagators are being attached to involved variables.
 2023-08-22 21:52:55 +02:00
Markus Triska
24456e9703 remove optional (+)/1 prefix in get_atts/2 and put_atts/2 calls 
The (+)/1 prefix in get_atts/2 at line 4219 by itself already causes a
greater than 15% slowdown for the benchmark shown in #1730:

    ?- N #= 2^14,
       time(((between(1, N, _),
              X #\= Y,
              false)
            ; true)).

The performance impact is not a good reason to remove the optional
(+)/1 prefix! Performance issues should be addressed at the root, in
this case get_atts/2 (#1962). We should never manually work around
performance issues in built-in predicates.

In contrast, readability is a good argument, and I find the calls
slightly easier to read without the optional (+)/1 prefix.

The prefix is now consistently omitted when possible.
 2023-08-22 21:52:55 +02:00
Markus Triska
7f024f3b8d use pneq/2 2023-08-22 21:52:55 +02:00
Markus Triska
67c1b171c7 enforce same queue in more constraints 2023-08-22 21:52:55 +02:00
Markus Triska
04fbb0c1ce append the entire queues instead of inserting each element individually 2023-08-22 21:52:55 +02:00
Markus Triska
327423ab84 adapt query to Scryer Prolog 2023-08-21 21:19:29 +02:00
Markus Triska
20cfffdff5 update answers 2023-08-21 21:19:29 +02:00
Markus Triska
d8e126044f use can_be/2 2023-08-21 21:19:29 +02:00
Markus Triska
013df58fea ENHANCED: more extensive type checking in curve25519_scalar_mult/3 2023-08-20 14:43:14 +02:00
Markus Triska
92fdc7e380 use newly available double_quotes/1 write option in portray_clause_//1 2023-08-17 23:05:21 +02:00
Markus Triska
f02cd0ad3c ENHANCED: domain error in zcompare/3 (#1723) 2023-08-14 17:54:18 +02:00
Markus Triska
4a6bf5fd5f reorder tests, per https://github.com/mthom/scryer-prolog/pull/1961#pullrequestreview-1574380588 2023-08-11 23:41:54 +02:00
Markus Triska
26c0b4fc75 ADDED: succ/2, part of the Prologue for Prolog 
Specification:

   https://www.complang.tuwien.ac.at/ulrich/iso-prolog/prologue#succ
 2023-08-11 22:46:46 +02:00
Markus Triska
924750f826 ENHANCED: more efficient chars_si/1, using specialized predicates of Scryer 
Source:

    https://github.com/mthom/scryer-prolog/issues/1947#issuecomment-1665113488
 2023-08-04 21:18:37 +02:00
Markus Triska
8073a4ba87 add character_si/1 and use it to correct chars_si/1 
This addresses #1947.
 2023-08-03 22:27:13 +02:00
Markus Triska
0ddda0a864 FIXED: do not attach constraint if the propagator is already entailed and killed 
Example:

    ?- A#=A//A#==>B,A-B=1-1.
       A = 1, B = 1.

This addresses #1941.
 2023-08-03 00:26:40 +02:00
Markus Triska
54a887cdc3 ENHANCED: forget auxiliary constraints set up by the propagator for multiplication 
This addresses the issue raised in https://github.com/mthom/scryer-prolog/discussions/1937.
 2023-07-31 21:57:25 +02:00
Markus Triska
554e956ef5 remove another !/0 which is now no longer necessary due to improved indexing 2023-07-22 06:52:29 +02:00
Mark
f310ff24a5 remove now unnecessary cut in lists.pl 2023-07-21 11:35:57 -06:00
Mark
e529e7ba21 improve goal expansion and (',') interpretation error handling 2023-07-20 14:27:10 -06:00
Mark
4fd247f881 check for unexpected EOF in get_to_eof (#1897) 2023-07-19 17:13:47 -06:00
Mark
14646074be remove failing append choicepoint in atom_concat/3 special case (#1893) 2023-07-18 14:44:02 -06:00
Mark Thom
1ba040c24d Merge pull request #1885 from mthom/setof_bagof_fixes 
Fix group_by_variants/4 and keysort in setof/3
 2023-07-18 12:35:10 -06:00
Mark
db43d461b9 catch errors thrown from tabling Worker (#1526, #1888) 2023-07-18 12:10:27 -06:00
Mark
42a50474da remove read/{1,2} as a builtin, write read options upon EOF, throw better domain errors in parse_read_term_options/2 2023-07-17 16:45:03 -06:00
Mark
5a7da721cd add read_term_from_chars/3 (#637) 2023-07-15 11:20:20 -06:00