39 lines
945 B
Python
39 lines
945 B
Python
"""
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>>> clip('banana ', 6)
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'banana'
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>>> clip('banana ', 7)
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'banana'
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>>> clip('banana ', 5)
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'banana'
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>>> clip('banana split', 6)
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'banana'
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>>> clip('banana split', 7)
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'banana'
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>>> clip('banana split', 10)
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'banana'
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>>> clip('banana split', 11)
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'banana'
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>>> clip('banana split', 12)
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'banana split'
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"""
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# tag::CLIP_ANNOT[]
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def clip(text: str, max_len: int = 80) -> str:
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"""Return new ``str`` clipped at last space before or after ``max_len``.
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Return full ``text`` if no space found.
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"""
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end = None
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if len(text) > max_len:
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space_before = text.rfind(' ', 0, max_len)
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if space_before >= 0:
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end = space_before
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else:
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space_after = text.rfind(' ', max_len)
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if space_after >= 0:
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end = space_after
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if end is None:
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end = len(text)
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return text[:end].rstrip()
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# end::CLIP_ANNOT[]
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