c294a29cb2
Support placeholders with #external declarations
...
This adds support for declaring predicates as placeholders through the
“#external” directive in the input language of clingo.
Placeholders are not subject to completion. This prevents predicates
that represent instance-specific facts from being assumed as universally
false by default negation when translating an encoding.
This stretches clingo’s usual syntax a bit to make the implementation
lightweight. In order to declare a predicate with a specific arity as a
placeholder, the following statement needs to be added to the program:
#external <predicate name>(<arity>).
Multiple unit tests cover cases where placeholders are used or not as
well as a more complex graph coloring example.
2018-04-08 20:28:57 +02:00
a4cd133ba7
Correctly implemented hiding predicates with nested arguments.
2017-06-12 02:25:04 +02:00
bbbd0b65a4
Added new option --parentheses=full to make parsing the output easier.
2017-06-06 02:02:26 +02:00
0285c1cbbb
Renamed internal variables for clarity.
2017-06-06 01:44:44 +02:00
95984f0447
Added warning when attempting to use #show statements without completion.
2017-06-05 04:24:00 +02:00
14abc37116
Implemented #show statements for completed output.
2017-06-05 03:02:22 +02:00
dcc504ebc0
Added another simplification step after completion.
2017-06-04 20:55:24 +02:00
2bc60d3eea
Started implementing support for #show statements.
2017-06-01 04:05:11 +02:00
cdcee897ec
Added missing error message when input file does not exist.
2017-06-01 03:29:09 +02:00
4baed6fbc6
Added back completion support.
2017-06-01 02:37:45 +02:00
7aad8380d1
Refactored logging interface.
2017-05-30 17:19:26 +02:00
1c925d661b
Major refactoring to uniquely link variables to their declarations (breaks simplification and completion).
2017-05-30 03:56:35 +02:00
a716da4af1
Finished implementing completion (unit tests to follow).
2017-04-08 16:21:24 +02:00
27b46ceee1
Added scaffold for implementing completion.
2017-04-05 18:21:38 +02:00
838a68e230
Refactoring to prepare for implementing completion.
2017-04-05 18:15:42 +02:00
09c2674148
Fixed incorrectly translated choice rules with multiple elements in the aggregate.
2017-03-23 02:06:19 +01:00
283cdd2abf
Preparations for returning multiple formulas per input rule (as necessary with head aggregates).
2017-03-23 01:23:17 +01:00
825cd4de39
Refactored formula simplification with Clingo’s variants.
2017-03-23 00:44:10 +01:00
fc538eb7fc
Started implementing output simplifications.
2017-03-16 15:45:55 +01:00
9e6d135781
Implemented explicit syntax tree representation for first-order formulas.
2017-03-15 16:00:43 +01:00
a653556d77
Resolved minor warnings.
2016-11-29 02:29:54 +01:00
5816207af7
Renamed “note” to “info.”
2016-11-24 22:58:13 +01:00
c92de5e461
Removed unwanted newline.
2016-11-24 14:47:02 +01:00
c760edb141
Fixed missing usages of new output format.
2016-11-24 03:36:14 +01:00
018559b8cf
Started implementing color output (currently for head only).
2016-11-24 02:42:32 +01:00
6af3b7b875
Made all visitors consistent in taking an Context object as an argument.
2016-11-24 00:52:28 +01:00
7e7baa1aab
Wrote simple dummy parser.
2016-11-22 03:15:52 +01:00
