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Author SHA1 Message Date
Mark Thom
7621155a89 change wording of QueryCannotBePostedAsFact to QueryCannotBeDefinedAsFact, remove old commented code in read.rs 2020-04-12 16:01:53 -06:00
Mark Thom
4ddc4ebf46 Merge pull request #333 from triska/master 
incorporate the latest improvements in the description of partial strings
 2020-04-12 16:00:01 -03:00
Markus Triska
786f0b5ca2 incorporate the latest improvements in the description of partial strings 
As of 6e4b76a3b4, the use of
partial_string/3 can be replaced by (=)/2 in this example.
 2020-04-12 20:46:22 +02:00
Mark Thom
b4ff429bfa Merge pull request #332 from triska/master 
ENHANCED: ~w now supports compound terms, and ~q is now also available
 2020-04-12 15:00:20 -03:00
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
28099b9812 correct misleading error for modules (#300) 2020-04-12 12:51:59 -06:00
Mark Thom
2ce4f602c0 be more judicious with at_cdr in print_string (#295) 2020-04-12 12:18:15 -06:00
Mark Thom
5e81fb4754 throw exception when attempting to post query as goal (#329) 2020-04-12 12:07:41 -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
97d8d07947 recognize empty lists as partial strings (#328) 2020-04-11 23:08:15 -06:00
Mark Thom
4f0adad78e remove string/1, use a more general test for the partial_string/1 type test (#328) 2020-04-11 22:47:52 -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
aedffb3cfe remove unnecessary use of partial_string in bimetatrans example 2020-04-11 22:02:17 -06:00
Mark Thom
fff96e69db Merge pull request #310 from triska/bimeta_example 
Bimeta example
 2020-04-11 22:03:10 -03:00
Mark Thom
abc99c9dd8 Merge branch 'master' of https://github.com/mthom/rusty-wam 2020-04-11 21:59:25 -06:00
Mark Thom
6e4b76a3b4 compile special instructions for partial strings when recognized 2020-04-11 21:53:28 -06:00
Mark Thom
92d8642133 do not accept [X|Xs] patterns as DCG non-terminals (#286) 2020-04-11 21:52:45 -06:00
Mark Thom
184124586b Merge pull request #320 from triska/master 
add library(freeze) to make zcompare/3 work
 2020-04-09 12:26:31 -03:00
Markus Triska
4d32b6976a add library(freeze) to make zcompare/3 work 2020-04-08 22:09:59 +02:00
Mark Thom
45a99e576d Merge pull request #318 from triska/master 
extend description of strings and partial strings
 2020-04-08 16:59:13 -03:00
Markus Triska
fac6d54986 extend description of strings and partial strings 
Also, explain in more detail what this feature means to Prolog
application programmers, and the strategic direction of Scryer.
 2020-04-08 21:07:00 +02:00
Mark Thom
036c35729c Merge pull request #316 from triska/master 
clpz_monotonic/0 --> monotonic/0
 2020-04-08 13:18:42 -03:00
Markus Triska
e442fddc66 tuples_in/2 now works 2020-04-08 17:49:06 +02:00
Mark Thom
a3c3afba48 fix list index offset bug (#314) 2020-04-06 16:15:36 -06:00
Markus Triska
794ceac440 clpz_monotonic/0 --> monotonic/0 2020-04-06 23:05:57 +02:00
Mark Thom
6299d41cda mark clp(X) item as completed, restore clp(Z) library description 2020-04-05 21:26:27 -03:00
Mark Thom
2e5ce0249e Merge pull request #312 from triska/master 
ADDED: CLP(ℤ), Constraint Logic Programming over Integers
 2020-04-05 21:14:11 -03:00
Mark Thom
560298655b consolidate Cargo.lock 2020-04-05 20:34:49 -06:00
Mark Thom
4086df27b2 merge with master 2020-04-05 20:33:45 -06:00
Mark Thom
d76ae413c4 use fixnums in place of bignums where possible 2020-04-05 20:32:16 -06:00
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
c8855f97e8 allocate empty partial strings 2020-04-05 02:55:30 -06:00
Mark Thom
bbf1aa1668 use copy_term/3 to print residual goals (#254) 2020-04-05 02:55:04 -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
Mark Thom
8f11fd7c62 Merge pull request #306 from srenatus/sr/version-argument 
main: add -v/--version flag
 2020-04-03 00:35:51 -03:00
Mark Thom
9f960c25a5 add bimetatrans_ruleml.pl to examples 2020-03-30 20:00:08 -06:00
Markus Triska
11a616917a introduce and use nonterminal list//1 
Example:

    ?- phrase(list(Ls), Ls0).
       Ls = [], Ls0 = []
    ;  Ls = [_A], Ls0 = [_A]
    ;  Ls = [_A,_B], Ls0 = [_A,_B]
    ;  Ls = [_A,_B,_C], Ls0 = [_A,_B,_C]
    ;  ...
 2020-03-31 01:28:16 +02:00
Markus Triska
a89f03f27d embed literal lists directly in DCGs 
Example use of direct embedding:

    ?- phrase("abc", Ls0, Ls).
       Ls0 = [a,b,c|Ls].
 2020-03-31 01:24:15 +02:00
Markus Triska
3faf36440c naming: partial_list_ws//1 --> list_ws//1 
A DCG describes a list, so "list" is an appropriate name.
 2020-03-31 01:23:00 +02:00
Stephan Renatus
45d4f46024 main: skip args[0] 
This is a bit pedantic, it's unlikely that the executable would be
called `-v` or `--version`. However, it seems slightly more correct to
disregard argv[0] when checking flags.
Signed-off-by: Stephan Renatus <srenatus@chef.io>
 2020-03-28 09:07:44 +01:00
Stephan Renatus
896f2aeb74 main: add -v/--version flag 
Added a new dependency to take care of pulling in the version from git
at build time.

Args handling is minimalistic, but there wasn't any before, so I figured
this might do for now. (Eventually, some proper `--help` and usage
output might come in handy?)

Signed-off-by: Stephan Renatus <srenatus@chef.io>
 2020-03-27 19:59:50 +01:00
Mark Thom
7de39611f3 Merge pull request #305 from srenatus/sr/typo 
examples/least_time.pl: fix typo
 2020-03-27 14:35:17 -03:00
Stephan Renatus
7e6be23287 examples/least_time.pl: fix typo 
Signed-off-by: Stephan Renatus <srenatus@chef.io>
 2020-03-27 18:29:17 +01:00
Mark Thom
cac76d4739 Merge branch 'master' into develop 2020-03-26 22:01:25 -06:00
Mark Thom
194e5dc94e initial commit for merge 2020-03-26 22:01:23 -06:00
Mark Thom
f7629362d7 Merge branch 'master' of https://github.com/mthom/rusty-wam 2020-03-19 20:42:37 -06:00
Mark Thom
ea0c396114 add least_time example 2020-03-19 20:42:11 -06:00
Mark Thom
057e2d8056 provide contextual information in the return value of try_in_situ_result 2020-03-19 20:41:58 -06:00
Mark Thom
487fe21e25 #278 2020-03-19 17:49:17 -06:00