83 lines
2.9 KiB
Python
83 lines
2.9 KiB
Python
"""
|
|
pygments.lexers.pddl
|
|
~~~~~~~~~~~~~~~~~~~~
|
|
|
|
Lexer for the Planning Domain Definition Language.
|
|
|
|
:copyright: Copyright 2006-2025 by the Pygments team, see AUTHORS.
|
|
:license: BSD, see LICENSE for details.
|
|
"""
|
|
|
|
|
|
from pygments.lexer import RegexLexer, words, include
|
|
from pygments.token import Punctuation, Keyword, Whitespace, Name, Comment, \
|
|
Operator, Number
|
|
|
|
|
|
__all__ = ['PddlLexer']
|
|
|
|
|
|
class PddlLexer(RegexLexer):
|
|
"""
|
|
A PDDL lexer.
|
|
|
|
It should support up to PDDL 3.1.
|
|
"""
|
|
|
|
name = 'PDDL'
|
|
aliases = ['pddl']
|
|
filenames = ['*.pddl']
|
|
# there doesn't really seem to be a PDDL homepage.
|
|
url = 'https://en.wikipedia.org/wiki/Planning_Domain_Definition_Language'
|
|
version_added = '2.19'
|
|
|
|
tokens = {
|
|
'root': [
|
|
(r'\s+', Whitespace),
|
|
(r';.*$', Comment.Singleline),
|
|
include('keywords'),
|
|
include('builtins'),
|
|
(r'[()]', Punctuation),
|
|
(r'[=/*+><-]', Operator),
|
|
(r'[a-zA-Z][a-zA-Z0-9_-]*', Name),
|
|
(r'\?[a-zA-Z][a-zA-Z0-9_-]*', Name.Variable),
|
|
(r'[0-9]+\.[0-9]+', Number.Float),
|
|
(r'[0-9]+', Number.Integer),
|
|
],
|
|
'keywords': [
|
|
(words((
|
|
':requirements', ':types', ':constants',
|
|
':predicates', ':functions', ':action', ':agent',
|
|
':parameters', ':precondition', ':effect',
|
|
':durative-action', ':duration', ':condition',
|
|
':derived', ':domain', ':objects', ':init',
|
|
':goal', ':metric', ':length', ':serial', ':parallel',
|
|
# the following are requirements
|
|
':strips', ':typing', ':negative-preconditions',
|
|
':disjunctive-preconditions', ':equality',
|
|
':existential-preconditions', ':universal-preconditions',
|
|
':conditional-effects', ':fluents', ':numeric-fluents',
|
|
':object-fluents', ':adl', ':durative-actions',
|
|
':continuous-effects', ':derived-predicates',
|
|
':time-intial-literals', ':preferences',
|
|
':constraints', ':action-costs', ':multi-agent',
|
|
':unfactored-privacy', ':factored-privacy',
|
|
':non-deterministic'
|
|
), suffix=r'\b'), Keyword)
|
|
],
|
|
'builtins': [
|
|
(words((
|
|
'define', 'domain', 'object', 'either', 'and',
|
|
'forall', 'preference', 'imply', 'or', 'exists',
|
|
'not', 'when', 'assign', 'scale-up', 'scale-down',
|
|
'increase', 'decrease', 'at', 'over', 'start',
|
|
'end', 'all', 'problem', 'always', 'sometime',
|
|
'within', 'at-most-once', 'sometime-after',
|
|
'sometime-before', 'always-within', 'hold-during',
|
|
'hold-after', 'minimize', 'maximize',
|
|
'total-time', 'is-violated'), suffix=r'\b'),
|
|
Name.Builtin)
|
|
]
|
|
}
|
|
|