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390 Commits

Author SHA1 Message Date
notoria
e3a7f9eb7a Draft of an implementation of char_type 2020-04-22 12:57:18 +02:00
Markus Triska
20fb6d6669 ADDED: library(format) now provides a rudimentary version of listing/1 
Example:

    :- dynamic(a/1).

    a(X) :- X = true, b(X).

Yielding:

    ?- listing(a/1).
    %@ a(A) :-
    %@    A=true,
    %@    b(A).
    %@    true.

listing/1 only works for predicates and DCGs that are declared dynamic/1.
 2020-04-22 01:53:20 +02:00
Markus Triska
608d661355 portray_clause/1 now correctly tracks variable names (#376) 
Example:

    ?- portray_clause((A :- B)).
    %@ A :-
    %@    B.
    %@    true
    %@ ;  ...

Also, change the indentation from 8 to 3 at the express request of @UWN.
 2020-04-20 22:53:15 +02:00
notoria
6d7612ead6 Corrected the error being thrown by sleep/1 2020-04-20 16:36:57 +02:00
notoria
b3e31094ff Changed the error being thrown by sleep/1 2020-04-20 11:27:28 +02:00
Mark Thom
c9750fab2c Merge pull request #371 from notoria/sleep 
Added the sleep predicate
 2020-04-19 21:41:33 -03:00
notoria
a7f3dafd81 Undo a workaround 2020-04-19 23:26:16 +02:00
notoria
fb38b4b906 Corrected bound 2020-04-19 23:04:51 +02:00
notoria
f0a1a90b0e Merge pull request #3 from triska/sleep 
update comment
 2020-04-19 22:44:48 +02:00
notoria
fb331d39a6 Thrown an error if T < 0 or T > 0xfffffffffffffbff in sleep(T) 2020-04-19 22:43:13 +02:00
Markus Triska
7a3e6e19b1 update comment 2020-04-19 22:36:27 +02:00
notoria
5a063c541d Added the sleep predicate 2020-04-19 21:35:49 +02:00
Markus Triska
7141fb18c1 ENHANCED: time(Goal) now also reports the time if Goal fails 2020-04-19 21:13:15 +02:00
Markus Triska
4693c23a49 ADDED: library(time), providing time/1 for benchmarking 
sleep/1 and predicates for reasoning about time stamps should also
be added to this library.
 2020-04-19 19:18:47 +02:00
Mark Thom
cae0733149 Merge branch 'master' of https://github.com/mthom/rusty-wam 2020-04-19 12:58:54 -06:00
Mark Thom
5d6ca7a88e throw '' whenever an interrupt is made (#365, #366) 2020-04-19 12:58:44 -06:00
Markus Triska
60f1f1cb3d Restore the type_error, which was implemented correctly by @notoria. 
This corrects f28e87b240:
in_character is a valid type by 7.12.2 Error classification!
 2020-04-19 02:15:59 +02:00
Markus Triska
ab3c520006 document ~| format modifier to place a tab stop at this position 
This works best when used in tandem with ~N+, since it is currently
equivalent to ~0| and does not take the actual text position into account.
However, when using relative positions, this works as intended.
 2020-04-19 01:59:16 +02:00
Markus Triska
45ed9405b0 use the most recent improvements 2020-04-19 01:34:13 +02:00
Mark Thom
9daf290432 remove SCCCutPolicy panic, revise (;)/2 so that comma'ed cuts are handled properly (#361) 2020-04-18 20:10:53 -06:00
notoria
c6a82cbc07 Removed a check in get_single_char 2020-04-18 14:16:46 -06:00
notoria
196d74c3a0 Fixed the predicate name when error is thrown 2020-04-18 14:16:46 -06:00
Markus Triska
f28e87b240 instead of a type error, use a domain error 
The preceding use of atom_length/2 already ensures that C has the
correct type (i.e., atom). However, its domain may still be wrong,
if its length is greater than 1.
 2020-04-18 14:16:46 -06:00
notoria
c24ebaf506 Moved get_single_char from builtins.pl to charsio.pl 2020-04-18 14:16:46 -06:00
notoria
d3a1f11dfe Added predicate for reading a single character 2020-04-18 14:16:46 -06:00
Markus Triska
16e257ea32 ADDED: list_to_set/2, using the first occurrence of each element 
Example:

    ?- list_to_set([B,a,b,a,B,A,b,A], Ls).
       Ls = [B,a,b,A]
    ;  false.
 2020-04-18 14:16:40 -06:00
Mark Thom
474fa9b3ec remove underscores in printed variables produced by write_term_to_chars (#340) 2020-04-18 14:16:40 -06:00
Mark Thom
7799ed36f0 provide better variable names in write_term_to_chars/3 (#340) 2020-04-14 10:39:10 -06:00
Mark Thom
db5ed345bc improve writeX performance (#290) 2020-04-14 10:25:05 -06:00
Markus Triska
237c855f10 ADDED: group_pairs_by_key/2 
Pairs must be keysorted and may also contain variables as keys.

Examples:

    ?-  group_pairs_by_key([1-a,1-b,2-c], Ps).
       Ps = [1-[a,b],2-[c]].

    ?-  group_pairs_by_key([X-a,X-b,2-c], Ps).
       Ps = [X-[a,b],2-[c]].
 2020-04-14 00:10:33 +02:00
Markus Triska
ab9b604d02 the workaround is no longer necessary, since #336 is now corrected 2020-04-13 11:32:06 +02:00
Markus Triska
f52c9772a7 also include a newline in portray_clause/1 2020-04-13 01:24:15 +02:00
Markus Triska
208927544d ADDED: provide a rudimentary version of portray_clause/1 
At the moment, library(format) seems to be a fitting place.
In the eventual library organization, portray_clause/1 and
related predicates may be moved to their own dedicated library.
 2020-04-13 01:04:52 +02:00
Mark Thom
0fad2f9953 make write_term_to_chars work with variable terms (#335) 2020-04-12 18:10:45 -06:00
Mark Thom
d3a9392421 provide read_term_from_chars/2 (#334) 2020-04-12 17:26:11 -06:00
Markus Triska
c9f1a95343 ENHANCED: ~w now supports compound terms, and ~q is now also available 2020-04-12 19:56:01 +02:00
Mark Thom
f2cf0ec459 move write_term_to_chars/3 to src/prolog/lib/charsio.pl 2020-04-12 14:42:39 -06:00
Mark Thom
0380d70a46 add write_term_to_chars/3 to iso_ext.pl (#288) 2020-04-12 14:29:28 -06:00
Mark Thom
0499005db5 throw error when trying to use partial lists as DCG terminal-sequence (#286) 2020-04-11 22:40:29 -06:00
Mark Thom
abc99c9dd8 Merge branch 'master' of https://github.com/mthom/rusty-wam 2020-04-11 21:59:25 -06:00
Mark Thom
92d8642133 do not accept [X|Xs] patterns as DCG non-terminals (#286) 2020-04-11 21:52:45 -06:00
Markus Triska
4d32b6976a add library(freeze) to make zcompare/3 work 2020-04-08 22:09:59 +02:00
Markus Triska
e442fddc66 tuples_in/2 now works 2020-04-08 17:49:06 +02:00
Markus Triska
794ceac440 clpz_monotonic/0 --> monotonic/0 2020-04-06 23:05:57 +02:00
Markus Triska
8b1df2e9ca ADDED: CLP(ℤ), Constraint Logic Programming over Integers 
library(clpz) implements declarative integer arithmetic.

The most important predicates for reasoning about integers are:

    (#=)/2    equality
    (#\=)/2   disequality
    (#<)/2    less than
    (#>)/2    greater than
    (#=<)/2   less than or equal to
    (#>=)/2   greater than or equal to

In addition, the library provides several global constraints, such as
all_distinct/1 and global_cardinality/2, and reification predicates
that reflect the truth values of constraints into integer variables.

Enumeration predicates such label/1 and labeling/2 can be used to
search for solutions over finite domains.

Almost all Prolog programs also reason about integers. Therefore, I
recommend to add this library to your .scryerrc configuration file so
that declarative integer arithmetic is available in all your programs.

More information about CLP(ℤ):

    https://www.metalevel.at/prolog/clpz

Enjoy!
 2020-04-06 01:59:41 +02:00
Mark Thom
d76ae413c4 use fixnums in place of bignums where possible 2020-04-05 20:32:16 -06:00
Mark Thom
141f3bcec3 harmonize partial strings with complete strings (#276), make Addr a copyable type 2020-04-03 10:22:46 -06:00
Markus Triska
f09a3142a6 ENHANCED: format_//2 now supports ~a, ~d, ~Nd, ~D, ~ND, ~Nn, ~i and ~* 2020-03-19 21:51:53 +01:00
Mark Thom
f9c4a40d60 add set_input/1, set_output/1 2020-03-15 23:29:21 -06:00
Mark Thom
325df8a6e3 add provisional max_depth option to write_term, speed printing of non-cyclic terms 2020-03-15 00:09:20 -06:00