rishi/scryer-prolog
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1813 Commits

Author SHA1 Message Date
Mark Thom
10af206024 make chars callable (#713) 2021-03-17 19:50:41 -06:00
Mark Thom
6c23d7aec8 always print variable bindings before names (#865) 2021-03-17 19:27:53 -06:00
Mark Thom
7937ccee30 check that a load context path is a filename before potentially returning it as a string 2021-03-17 18:58:33 -06:00
Mark Thom
b98e8c34eb findall/4 should be declared as a meta-predicate (#873) 2021-03-17 18:13:06 -06:00
notoria
f4be0cf4b3 Extend alnum, add forgotten graphic_token 2021-03-17 20:47:09 +01:00
Mark Thom
5f7abda22d remove operators declared at user-level from files when reloading 2021-03-16 18:30:34 -06:00
Mark Thom
51424aed32 clear user-level definitions when reloading a file (#455) 2021-03-16 02:30:09 -06:00
Mark Thom
914fb09ed0 don't warn about overwriting a clause asserted to a dynamic predicate whose clauses have all been retracted (#870) 2021-03-15 14:22:54 -06:00
Mark Thom
7ea7e5c951 remove intra-module predicates from module code directory when module is being re-defined (#848) 2021-03-13 23:22:24 -07:00
Skgland
d437609365 improve comment 2021-03-11 01:52:21 +01:00
Mark Thom
d4d47182b4 fix is_cyclic_term (#864) 2021-03-10 16:11:48 -07:00
Mark Thom
bc2d0191ff Merge pull request #861 from notoria/mod 
Small improvement for mod in CLP(Z)
 2021-03-10 13:52:48 -07:00
notoria
bd222ed2bf Added a test for mod in CLP(Z) 2021-03-10 21:20:18 +01:00
notoria
93b835ae0d Use functional notation in CLP(Z) for compatibility 2021-03-07 20:59:25 +01:00
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
Mark Thom
0a71e40030 qualify '$print_project_attributes_exception' call (#857) 2021-03-05 01:14:56 -07:00
Mark Thom
1b9db035ba call project_attributes from top-level (#846) 2021-03-04 16:05:06 -07:00
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
761d707b69 use the new portray_clause/1 output for generated definitions 2021-03-03 22:34:09 +01:00
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
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
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
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
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
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