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Documented feature requirements.

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Patrick Lühne 2016-08-13 17:39:39 +02:00
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doc/output-format.md
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`plasp` 3 translates SAS and PDDL files into the same ASP fact format. `plasp` 3 translates SAS and PDDL files into the same ASP fact format.
## Sections ## Syntax and Semantics
The `plasp` output contains the following sections: `plasp` structures the translated ASP facts into the multiple sections, which are explained in the following.
section | description ### Feature Requirements
--------|------------
feature requirements | advanced features (such as conditional effects or axiom rules) required by the input planning problem Declares advanced features required by the input planning problem, such as conditional effects and axiom rules.
types (PDDL only) | object types used by the planning problem (only if typing is enabled)
variables | fluents used by the planning problem (variables in SAS and predicates in PDDL) and their possible values Feature requirements may be used in meta encodings to warn about features that are unsupported by the encoding.
actions | actions (operators in SAS and actions in PDDL), their preconditions, and effects
mutex groups (SAS only) | sets of mutually exclusive variable assignments syntax | description
axiom rules (SAS only) | special actions that are immediately executed when the preconditions are satisfied -------|------------
objects (PDDL only) | constant objects defined by PDDL domains or problems `requiresFeature(<feature>).` | declares the feature `<feature>` to be required by the input problem
initial state | initial variable assignment
goal | target variable assignment Currently, feature requirements are only recognized with SAS problems.
SAS feature | description
------------|------------
`actionCosts` | actions have associated costs
`axiomRules` | immediate actions used, which are executed as soon as the preconditions are satisfied
`conditionalEffects` | some effects of an action may have additional conditions