rishi/scryer-prolog
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10bb6ab3bbea5eec67a4fe053620081a818cff54
Commit Graph

97 Commits

Author SHA1 Message Date
Mark Thom
10bb6ab3bb restore old thread_goals to fix top-level solutions printing bug 2022-01-06 21:44:41 -07:00
Mark Thom
073f281f1e fix arg/3 bug 2022-01-06 21:44:41 -07:00
Mark Thom
addc817cca break from get_char loop after successful char unification 2022-01-06 21:44:41 -07:00
Mark Thom
b24e7cce38 support comparison and unification of cyclic partial strings 2022-01-06 21:44:41 -07:00
Mark Thom
ffd1b7069f greatly reduce the number of goal expansions done in callable if/then/else 2022-01-06 21:44:41 -07:00
Mark Thom
0404c3bd94 use new heap term representation 2022-01-06 21:44:38 -07:00
Markus Triska
7e8a635e7e implement tls_client_negotiate/3 for explicit negotiation 2021-12-05 17:39:22 +01:00
Markus Triska
77c04c3a14 ADDED: Support for creating TLS servers. 
The new predicates tls_server_context/2 and tls_server_negotiate/3 can
be used to negotiate TLS connections with clients for encrypted and
authenticated communication.
 2021-12-03 16:45:27 +01:00
Adrián Arroyo Calle
86161ccf2a Allow all kinds of string to be processed in open/4 2021-11-28 12:37:16 +01:00
Mark Thom
1d2a838717 Merge pull request #1077 from pmoura/fix_get_code_predicates_at_end_of_file 
Fix the get_code/1-2 predicates to return -1 at the end of stream as per standard
 2021-11-07 09:40:29 -05:00
Mark Thom
0b2638b201 Merge pull request #1070 from triska/open_stream 
ENHANCED: open/4 to allow opening a stream by specifying stream(S).
 2021-11-07 09:39:41 -05:00
Paulo Moura
658b835a70 Fix the get_code/1-2 predicates to return -1 at the end of stream 2021-11-06 19:41:25 +00:00
Markus Triska
f668640e3d move error handling to Prolog by using the new '$first_non_octet'/2 2021-11-04 18:35:22 +01:00
Markus Triska
afcd44deaa ENHANCED: open/4 to allow opening a stream by specifying stream(S). 
This allows switching standard output to binary, using for example:

  ?- current_output(S0), open(stream(S0), write, S, [type(binary)]).

format/3 can then be used to write binary data to S. This is needed
for example when piping binary data to other programs.

This addresses #614, please read the discussion for more information.

The current implementation is very preliminary: Specifically, it works
by destructively modifiying the parameters of the underlying stream,
making it no longer usable in its original mode. Currently, if the
type of standard output is set to binary, then the toplevel no longer
works. Therefore, after writing binary output to standard output,
the program should either halt, or set the stream type back to text.
 2021-11-04 18:33:40 +01:00
Markus Triska
494bd7b79c ADDED: '$first_non_octet'/2, for much more efficient domain checks in library(crypto). 
'$first_non_octet'(Cs, C) <=> C is the leftmost character in the
string Cs whose character code is not in 0..255.
 2021-11-04 00:12:00 +01:00
Adrián Arroyo Calle
391cda919f Implement shell/1 and shell/2 2021-10-11 22:35:05 +02:00
Adrián Arroyo Calle
47d811c250 use shutdown error values to throw exceptions in close stream 2021-09-30 00:10:03 +02:00
Adrián Arroyo Calle
4d0998ef72 launch exception if closing a closed TCP stream #1046 2021-09-28 22:48:51 +02:00
Regan-Koopmans
72a7765b58 981 Reimplement as library system call 2021-06-17 12:10:25 +02:00
Mark Thom
87ef3519d9 Merge pull request #972 from pmoura/add_pid_predicate 
Add pid/1 predicate to the os library
 2021-05-19 14:09:21 -06:00
Paulo Moura
b9ad6f4fd2 Add pid/1 predicate to the os library 2021-05-18 20:05:30 +01:00
Paulo Moura
58555d598b Add rename_file/2 predicate to the files library 2021-05-18 18:08:30 +01:00
Mark Thom
0eeae24049 Merge pull request #968 from pmoura/add_make_directory_path_predicate 
Add make_directory_path/1 predicate to the files library
 2021-05-18 10:26:06 -06:00
Paulo Moura
eeac3bc436 Add delete_directory/1 predicate to the files library 2021-05-18 08:41:19 +01:00
Paulo Moura
bdebc7f32e Add make_directory_path/1 predicate to the files library 2021-05-18 00:21:11 +01:00
Mark Thom
b21a096516 add read/2 and nl/1 (#896) 2021-05-01 16:12:00 -06:00
Mark Thom
d0b25de554 add user_error stream (#917) 2021-04-30 21:58:03 -06:00
panasenco
0198fe90b6 Added ABNF grammar to library(charsio) as well as octet character type that it depends on. Modified library(json) to use the new ABNF grammar. 2021-04-27 22:48:03 -07:00
panasenco
061221b073 Alphabetized character logic in macros.rs and system_calls.rs 2021-04-27 14:01:49 -07:00
Mark Thom
7520fe7000 use occurs check when enabled in UnifyValue (#885) 2021-03-22 22:05:03 -06:00
Mark Thom
fffb87d013 flush loader term queue before compiling declarations, declare '/1' as dynamic before asserting 2021-03-22 16:53:23 -06:00
Mark Thom
111de1462c remove vestigial attribute goals struct field and related predicates 2021-03-21 12:06:53 -06:00
Mark Thom
665b1ad58a Merge pull request #872 from notoria/charsio 
Extend alnum, add forgotten graphic_token
 2021-03-18 14:51:36 -06:00
Mark Thom
4623e9d7fc fix findall/4 (#873) 2021-03-18 12:50:12 -06:00
Mark Thom
10af206024 make chars callable (#713) 2021-03-17 19:50:41 -06:00
notoria
f4be0cf4b3 Extend alnum, add forgotten graphic_token 2021-03-17 20:47:09 +01:00
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
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
3f1cfd2995 introduce bind_fn, use in applicable Fact/Query instructions (#841) 2021-02-28 16:19:06 -07:00
Mark Thom
101ed9a633 add error value to occurs_check prolog flag (#783) 2021-02-28 11:44:23 -07:00
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
064d261357 implement logical update semantics for dynamic database predicates 2021-02-27 23:33:10 -07:00
Mark Thom
6c447da730 no longer generate a choice point in bb_b_put/2 (#742) 2021-02-22 18:27:30 -07:00
Mark Thom
1a9f6f06df consume whitespace before reading a term in loader.pl, modify prolog_load_context at file key to better reflect loading context, use it when reporting singleton variables (#812) 2021-02-22 13:23:22 -07:00
Mark Thom
0ef5f7f9b1 issue singleton variable warnings from loader.pl (#812) 2021-02-21 19:20:42 -07:00
Mark Thom
a323a4dd8e wrap stream instances in one Rc<RefCell<..>>, use Ref/RefMut to access stream options 2021-02-21 19:20:42 -07:00
Mark Thom
cc7e21170f correct faulty removal of clauses in abolish/1 2021-02-08 19:02:26 -07:00
Skgland
5041042925 rename prolog_parser_rebis to prolog_parser 
also remove remaining extern crate statements that slipped through earlier
 2021-02-06 22:13:34 +01:00