24 lines
679 B
Python
24 lines
679 B
Python
import hypothesis.strategies as st
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from hypothesis_cfg import ContextFreeGrammarStrategy
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import stl
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GRAMMAR = {
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'phi': (
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('Unary', 'phi'),
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('(', 'phi', 'Binary', 'phi', ')'),
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('AP', ), ('0', ), ('1', )
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),
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'Unary': (('~', ), ('G', 'Interval'), ('F', 'Interval'), ('X', )),
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'Interval': (('', ), ('[1, 3]', )),
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'Binary': (
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(' | ', ), (' & ', ), (' -> ', ), (' <-> ',), (' ^ ',),
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(' U ',),
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),
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'AP': (('ap1', ), ('ap2', ), ('ap3', ), ('ap4', ), ('ap5', )),
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}
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SignalTemporalLogicStrategy = st.builds(
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lambda term: stl.parse(''.join(term)),
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ContextFreeGrammarStrategy(GRAMMAR, max_length=14, start='phi')
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)
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