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@ -254,7 +254,7 @@ class Library(Mapping[str, 'Pattern'], metaclass=ABCMeta):
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name: str = '__',
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sanitize: bool = True,
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max_length: int = 32,
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quiet: bool = False,
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quiet: Optional[bool] = None,
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) -> str:
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"""
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Find a unique name for the pattern.
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@ -265,11 +265,15 @@ class Library(Mapping[str, 'Pattern'], metaclass=ABCMeta):
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name: Preferred name for the pattern. Default '__'.
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sanitize: Allows only alphanumeric charaters and _?$. Replaces invalid characters with underscores.
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max_length: Names longer than this will be truncated.
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quiet: If `True`, suppress log messages.
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quiet: If `True`, suppress log messages. Default `None` suppresses messages only if
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the name starts with an underscore.
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Returns:
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Name, unique within this library.
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"""
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if quiet is None:
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quiet = name.startswith('_')
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if sanitize:
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# Remove invalid characters
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sanitized_name = re.compile(r'[^A-Za-z0-9_\?\$]').sub('_', name)
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