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28 lines
986 B
28 lines
986 B
8 months ago
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from __future__ import annotations
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def split_index_msg(entry_type: str, value: str) -> list[str]:
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# new entry types must be listed in util/nodes.py!
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if entry_type == 'single':
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try:
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return _split_into(2, 'single', value)
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except ValueError:
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return _split_into(1, 'single', value)
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if entry_type == 'pair':
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return _split_into(2, 'pair', value)
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if entry_type == 'triple':
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return _split_into(3, 'triple', value)
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if entry_type in {'see', 'seealso'}:
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return _split_into(2, 'see', value)
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msg = f'invalid {entry_type} index entry {value!r}'
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raise ValueError(msg)
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def _split_into(n: int, type: str, value: str) -> list[str]:
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"""Split an index entry into a given number of parts at semicolons."""
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parts = [x.strip() for x in value.split(';', n - 1)]
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if len(list(filter(None, parts))) < n:
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msg = f'invalid {type} index entry {value!r}'
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raise ValueError(msg)
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return parts
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