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aca0de06cd7f576d0d7e7da31eba569e3a1f42fa
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647 Commits

Author SHA1 Message Date
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
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
Mark
ff5e9a793b add unknown flag to set_prolog_flag and current_prolog_flag 2023-07-14 19:10:10 -06:00
Mark
101d0548db fix group_by_variants/4 and keysort in setof/3 (#1440, #1856) 2023-07-14 18:52:29 -06:00
Markus Triska
9590d5200c ADDED: countall/2, for compatibility with GNU Prolog. 
Example:

    ?- countall(member(X, "abc"), N).
       N = 3.
 2023-07-13 23:08:13 +02:00
Markus Triska
814ce2d672 ENHANCED: improved determinism of member/2 
Example:

    ?- member(X, "abc").
    %@    X = a
    %@ ;  X = b
    %@ ;  X = c.

This addresses #750.
 2023-07-12 14:39:08 -06:00
Mark Thom
fd70d8975b Merge pull request #1832 from aarroyoc/http-fixes 
Multiple fixes for http libraries
 2023-07-06 16:30:56 -06:00
Mark
483e4568a2 add scc_block to MachineState to avoid SCC cleanup terms being deallocated too early (#1427) 2023-07-06 11:20:49 -06:00
Mark
5ffdd2d91a shrink scope of control_entry_point catch, add CutPoint tag to printer 2023-07-05 14:50:49 -06:00
Mark
9cdad087ef add double_quotes write option for printing to strings, enable it at toplevel 2023-07-03 12:09:05 -06:00
Mark
d079a18459 removing residual debugging comments from format.pl 2023-07-02 11:10:25 -06:00
Adrián Arroyo Calle
330e9ba4ef Multiple fixes for http libraries 
* use reqwest for http_open (still uses Hyper underneath)
* use Hyper 1.0.0-rc3 for server
* Modify all internal handling of server
 2023-06-29 23:43:37 +02:00
Mark
58af615dd4 correct and generalize current_predicate/1 2023-06-28 17:31:43 -06:00
Mark
039fffb339 better detect syntax errors in lexer.rs (#1771) 2023-06-27 16:39:20 -06:00
Markus Triska
ceb276b249 use copy_term_nat/2 2023-06-27 22:37:23 +02:00
Mark
b593fffc7d support module resolution in current_predicate/1 (#1817) 2023-06-27 11:08:29 -06:00
Mark
aa65287c3b remove tabling attributes in each module's attribute_goals//1 (#1825) 2023-06-27 10:31:10 -06:00
Markus Triska
9bc3757a9e another case of "read" --> "get", for an only internally used predicate 2023-06-24 11:48:28 +02:00
Markus Triska
18d0a74f23 MODIFIED: read_line_to_chars/3 is now called get_line_to_chars/3 
This is for consistency with other I/O predicates, where "read" always
indicates Prolog terms. Please adjust your programs accordingly.
 2023-06-24 11:47:32 +02:00
notoria
911c49c43f Compute correctly the domain of the remainder 2023-06-23 14:11:31 -06:00
notoria
770a682d8b Don't add variable 
?- Z #= 0, Z #= X mod Y.
   Z = 0, clpz:(_A*Y#=X), clpz:(Y in inf.. -1\/1..sup) % Unexpected.

The expected result:
   Z = 0, clpz:(X mod Y#=0), clpz:(Y in inf.. -1\/1..sup).
 2023-06-23 14:11:31 -06:00
notoria
73ca37ecca Remove and move comments 2023-06-23 14:11:31 -06:00