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Author SHA1 Message Date
Markus Triska
d327a05e12 separate side-effects from declarative description to facilitate test cases etc. 2021-03-03 22:34:09 +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
Mark Thom
d3612e956e catch exceptions thrown from initialization goals (#852) 2021-03-03 13:56:13 -07:00
Mark Thom
5a3ee3a46e has_tail must be false for use as a filename from open/{3,4} 2021-03-03 12:16:47 -07:00
Mark Thom
23cb743ce2 Merge pull request #851 from Skgland/fix_num_test2 
Workaround to make num tests work
 2021-03-02 23:36:59 -07:00
Skgland
40e5a2dc35 workaround to make num tests work 2021-03-03 01:18:24 +01:00
Mark Thom
73eb4079ef Merge pull request #849 from triska/master 
Remove duplicated definitions
 2021-03-02 11:59:22 -07:00
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
7ea9706c94 warn when overwriting a predicate (#848) 2021-03-02 11:43:47 -07:00
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
d32d452583 Merge pull request #845 from triska/master 
explain the new occurs_check flag
 2021-03-01 11:45:53 -07:00
Markus Triska
b77bdabca6 explain the new occurs_check flag 2021-03-01 19:42:16 +01:00
Mark Thom
e8971e0d8b use atom_chars to convert .scryerrc path string to atom 2021-02-28 23:26:22 -07:00
Mark Thom
498c4660d0 use plain ! while interpreting control functors in metacalls (#724) 2021-02-28 19:12:35 -07:00
Mark Thom
54c142fc0d apply expand_module_names to call(A) goals 2021-02-28 19:01:36 -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
3d4a7f97e1 Merge pull request #843 from mthom/rebis-dev 
Merge rebis-dev into master
 2021-02-28 18:33:24 -07:00
Mark Thom
d6e04beb95 check that Module is an atom before calling Module:goal_expansion/2 2021-02-28 18:28:12 -07:00
Mark Thom
9a225e6244 wrap variable goals in module-expanded call/1 2021-02-28 18:15:33 -07:00
Mark Thom
a03f00628b do not print error messages if .scryerrc[.pl] does not exist (#842) 2021-02-28 17:57:35 -07:00
Mark Thom
360485d830 print errors arising from term and goal expansion calls from loader.pl 2021-02-28 16:19:37 -07:00
Mark Thom
3f1cfd2995 introduce bind_fn, use in applicable Fact/Query instructions (#841) 2021-02-28 16:19:06 -07:00
Mark Thom
08e2b601f1 pop non-composite terms from iter stack in is_cyclic_term 2021-02-28 12:28:19 -07:00
Mark Thom
101ed9a633 add error value to occurs_check prolog flag (#783) 2021-02-28 11:44:23 -07:00
Mark Thom
81ecd17b93 Merge pull request #838 from Skgland/librarify 
Split main.rs into lib.rs and bin/scryer-prolog.rs
 2021-02-28 11:39:24 -07:00
Skgland
5a78f02dcb revert removal of PartialEq 2021-02-28 19:21:32 +01:00
Skgland
0a08464d4f move the signal handler to the binary 2021-02-28 19:21:31 +01:00
Skgland
a638d42d92 remove #[allow(dead_code)] 
only commenting out the unused variant as `OptArgIndexKeyType`
as it appears to mirror `OptArgIndexKey` and there List is not unused
so this appears to be not yet used rather than obsolete
 2021-02-28 19:21:31 +01:00
Skgland
90256ea2f5 fix CI lib build with beta compiler 2021-02-28 19:21:31 +01:00
Skgland
90aefd35f0 adjust ci 2021-02-28 19:21:30 +01:00
Skgland
2f428b7261 split into lib and bin 
* makes most pub things in src/ pub(crate) as not to expose things accidentally
  * only those things needed by src/bin/scryer-prolog.rs and tests/scryer.rs
    should be pub
* split src/main.rs into src/lib.rs and src/bin/scryer-prolog.rs
* add tests folder and run most of the files in src/tests with cargo test
  added bytes method to Stream in src/machine/streams.rs to check if stdout is as expected
 2021-02-28 19:21:30 +01:00
Mark Thom
f935060b2b restore .scryerrc loading 2021-02-28 11:03:55 -07:00
Mark Thom
a367812348 add occurs_check flag (#309) 2021-02-28 10:41:32 -07:00
Mark Thom
8e6a89b279 enable op declarations with lists of operands using term expansion (#839) 2021-02-28 09:15:03 -07:00
Mark Thom
0747697d10 add lines read from devour_whitespace (#836) 2021-02-28 02:09:53 -07:00
Mark Thom
8c7494885f set compilation_target of assert loader to match that of predicate qualifier 2021-02-28 00:27:50 -07:00
Mark Thom
590a0b8077 update the parser with the number of lines already read by the underlying stream (#836) 2021-02-27 23:56:58 -07:00
Mark Thom
064d261357 implement logical update semantics for dynamic database predicates 2021-02-27 23:33:10 -07:00
Mark Thom
adb96710bf Merge pull request #837 from triska/rebis-dev 
Small improvements for Rebis
 2021-02-25 15:17:16 -07:00
Markus Triska
dd64268bc7 add entry for library(lambda) 2021-02-25 23:12:56 +01:00
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
Mark Thom
3eb6357892 Merge pull request #835 from triska/lambda 
ADDED: library(lambda) by Ulrich Neumerkel
 2021-02-25 14:26:41 -07:00
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
9067f76bd6 no longer delay verify_attributes for cut instructions (#807) 2021-02-22 18:33:35 -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