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Author SHA1 Message Date
notoria
ac00bc6b70 Fixed ctrl-c issue with get_single_char/1 2020-05-05 18:47:00 +02:00
Mark Thom
0d85ef4404 Merge pull request #453 from triska/master 
disable goal expansion until #445 is resolved
 2020-05-04 14:32:26 -03:00
Markus Triska
2dfdaaa4ba disable goal expansion until #445 is resolved 2020-05-04 18:55:52 +02:00
Mark Thom
0111db6744 improve answer substitutions at top-level 2020-05-03 23:35:21 -06:00
Mark Thom
ef6b6cd279 Merge pull request #450 from triska/master 
do not project queue/2 attributes to residual goals
 2020-05-03 20:34:47 -03:00
Mark Thom
e5903d8d6e use select/3 in gather_equations for detecting whether variables are distinct. 2020-05-03 20:31:12 -06:00
Mark Thom
e2a3db1b82 use copy_term/3 as source of attribute goals 2020-05-03 19:34:18 -06:00
Mark Thom
b8400e0c92 make term{_attributed_}variables/2 order {attributed} variables by left-to-right occurrence 2020-05-03 18:43:23 -06:00
Mark Thom
9e220e8416 restore previous focus upon character match failure in compare_pstr_to_string (#441) 2020-05-03 17:03:59 -06:00
Markus Triska
605c233753 do not project queue/2 attributes to residual goals 2020-05-04 00:54:43 +02:00
Mark Thom
aafe18c2b5 Merge pull request #449 from notoria/read 
Completed read/1, ctrl-d is end_of_file
 2020-05-03 15:27:46 -03:00
Mark Thom
262e8af813 version bump for prolog_parser 2020-05-03 13:46:34 -06:00
notoria
75aa4ce8a0 Completed read/1, ctrl-d is end_of_file 2020-05-03 19:54:17 +02:00
Mark Thom
a494cdaf92 use complete strings in FileToChars (#430) 2020-05-03 02:54:49 -06:00
Mark Thom
848425418b Project goals of query variables (#362) 2020-05-02 22:27:32 -06:00
Mark Thom
989bed88fe wrap support code in modules 2020-05-02 21:26:36 -06:00
Mark Thom
99f66200f7 Merge branch 'master' of https://github.com/mthom/rusty-wam 2020-05-02 18:47:53 -06:00
Mark Thom
b642bd2cfd add term_attributed_variables/2 (#422) 2020-05-02 18:46:29 -06:00
Mark Thom
c062b7c9da Merge pull request #443 from notoria/arithmetic 
Implemented expmod/4
 2020-05-02 12:00:44 -03:00
notoria
7df7901532 Implemented expmod/4 2020-05-02 14:56:07 +02:00
Mark Thom
9dabce819a remove now unnecessary dependencies, correct ordering of ! in (;)/3 2020-05-01 23:38:44 -03:00
Mark Thom
a019109857 Merge pull request #440 from notoria/arithmetic 
Enhanced number_to_rational/2 and number_to_rational/3
 2020-05-01 21:48:55 -03:00
Mark Thom
46cdf14ecc Merge pull request #439 from notoria/cli2 
Enhanced command line?
 2020-05-01 21:45:03 -03:00
Mark Thom
fd5ff20b68 Merge branch 'master' of https://github.com/mthom/rusty-wam 2020-05-01 21:40:45 -06:00
Mark Thom
81f9666e82 cut after compound check in (;)/2 only after semicolon_compound_selector succeeds 2020-05-01 21:40:36 -06:00
Mark Thom
aa8659d5c7 insert cuts where needed into (;)/3 (#434) 2020-05-01 18:52:01 -06:00
notoria
9df2df0f9f Enhanced number_to_rational/2 and number_to_rational/3 2020-05-02 02:36:23 +02:00
notoria
98d38d763b Added $scryer_prolog_version/1 2020-05-02 02:19:22 +02:00
notoria
319a4622b3 Enhanced command line 2020-05-02 01:02:06 +02:00
Mark Thom
59b4c6dacb Merge pull request #437 from triska/master 
use ℤ
 2020-05-01 19:08:45 -03:00
Markus Triska
ec6d725587 use ℤ 
This is now possible thanks to the great contribution by @matt2xu.

Many thanks!
 2020-05-02 00:06:16 +02:00
Mark Thom
6f19649186 Merge pull request #436 from mthom/revert-419-cli 
Revert "Enhanced command line"
 2020-05-01 18:43:37 -03:00
Mark Thom
6a583b9b5b Revert "Enhanced command line" 2020-05-01 15:43:20 -06:00
Mark Thom
6617b79cd8 Merge pull request #419 from notoria/cli 
Enhanced command line
 2020-05-01 18:32:02 -03:00
Mark Thom
46b695d093 accept any and all characters in comment chars 2020-05-01 16:39:27 -06:00
notoria
de8a017e80 Enhanced command line #2 2020-05-01 18:52:41 +02:00
Mark Thom
b71ec91f57 Merge pull request #432 from triska/master 
correct overeager CLP(ℤ) goal expansion
 2020-05-01 13:41:43 -03:00
Mark Thom
1b7c226779 correct failing character match in compare_pstr_to_string (#397) 2020-05-01 10:29:10 -06:00
Markus Triska
ca5a5b4392 correct overeager CLP(ℤ) goal expansion 
For instance, consider:

    t(X) :- X #= 1.

We *cannot* expand this to:

    ?- listing(t/1).
    t(A) :-
       (  integer(A) ->
          A=:=A
       ;  (  var(A) ->
             true
          ;  true,
             clpz:clpz_equal(A,A)
          )
       ).

Also, a new binding *must not* be dragged outside of disjunctions,
since the code may look for example like this:

        i(X) :-
            (   X #= 3
            ;   X #= 4
            ).

This commit fixes such issues, and still rewrites CLP(ℤ) expressions
as far as possible already at compilation time.

For example:

    n(X) :- X #= 1+3.

This is now compiled to (note that 1+3 is evaluated to 4):

    ?- listing(n/1).
    n(A) :-
       (  integer(A) ->
          A=:=4
       ;  (  var(A) ->
             A=4
          ;  B=4,
             clpz:clpz_equal(A,B)
          )
       ).

Ideally, it should be compiled to:

    n(4).
 2020-05-01 18:29:00 +02:00
notoria
6ae7ae0210 Enhanced version 2020-05-01 16:46:31 +02:00
notoria
b911d2fda4 Enhanced command line 2020-05-01 16:19:06 +02:00
Mark Thom
847a92f580 map single character atoms down to characters in constant_index 2020-05-01 01:34:09 -06:00
Mark Thom
a346493de1 Merge branch 'master' of https://github.com/mthom/rusty-wam 2020-04-30 18:20:51 -06:00
Mark Thom
efd5d6efab use slightly better names in indexing functions 2020-04-30 18:20:42 -06:00
Mark Thom
b6df5a4b7f only add expanded goals to dynamic clause code (#416) 2020-04-30 17:53:26 -06:00
Mark Thom
34ae56e319 correct queue_len += queue_len; to queue_len += queue.len(); (#416) 2020-04-30 15:31:01 -06:00
Mark Thom
5870824d01 Merge pull request #425 from triska/master 
enable goal expansion for CLP(ℤ) goals
 2020-04-30 18:20:27 -03:00
Markus Triska
1dbadbfc35 enable goal expansion for CLP(ℤ) goals 
Example:

    integer_successor(I0, I) :- I #= I0 + 1.

Yielding:

    ?- listing(integer_successor/2).
    integer_successor(A,B) :-
       (  integer(B) ->
          (  integer(A) ->
             B=:=A+1
          ;  C is B,
             clpz:clpz_equal(C,A+1)
          )
       ;  (  integer(A) ->
             (  var(B) ->
                B is A+1
             ;  C is A+1,
                clpz:clpz_equal(B,C)
             )
          ;  clpz:clpz_equal(B,A+1)
          )
       ).

Thus, fast low-level arithmetic is used whenever possible.
 2020-04-30 23:09:15 +02:00
Mark Thom
d3f1cd7411 index atoms with operators against the same atom with no operator (#387) 2020-04-30 15:09:05 -06:00
Mark Thom
a821daadd3 Merge pull request #420 from triska/master 
correct verify_attributes/3 for variables that have no CLP(ℤ) attribute attached (#373)
 2020-04-30 13:32:21 -03:00