45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
"""
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.. codeauthor:: Tsuyoshi Hombashi <tsuyoshi.hombashi@gmail.com>
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"""
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import re
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from ._common import preprocess, validate_pathtype
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from .error import InvalidCharError
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__RE_INVALID_LTSV_LABEL = re.compile("[^0-9A-Za-z_.-]", re.UNICODE)
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def validate_ltsv_label(label: str) -> None:
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"""
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Verifying whether ``label`` is a valid
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`Labeled Tab-separated Values (LTSV) <http://ltsv.org/>`__ label or not.
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:param label: Label to validate.
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:raises pathvalidate.ValidationError:
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If invalid character(s) found in the ``label`` for a LTSV format label.
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"""
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validate_pathtype(label, allow_whitespaces=False, error_msg="label is empty")
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match_list = __RE_INVALID_LTSV_LABEL.findall(preprocess(label))
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if match_list:
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raise InvalidCharError(
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"invalid character found for a LTSV format label: {}".format(match_list)
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)
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def sanitize_ltsv_label(label: str, replacement_text: str = "") -> str:
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"""
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Replace all of the symbols in text.
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:param label: Input text.
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:param replacement_text: Replacement text.
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:return: A replacement string.
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:rtype: str
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"""
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validate_pathtype(label, allow_whitespaces=False, error_msg="label is empty")
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return __RE_INVALID_LTSV_LABEL.sub(replacement_text, preprocess(label))
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