40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
import re
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from typing import Pattern, Union
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from hamcrest.core.base_matcher import BaseMatcher
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from hamcrest.core.description import Description
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from hamcrest.core.matcher import Matcher
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__author__ = "Chris Rose"
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__copyright__ = "Copyright 2011 hamcrest.org"
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__license__ = "BSD, see License.txt"
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class StringMatchesPattern(BaseMatcher[str]):
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def __init__(self, pattern) -> None:
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self.pattern = pattern
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def describe_to(self, description: Description) -> None:
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description.append_text("a string matching '").append_text(
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self.pattern.pattern
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).append_text("'")
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def _matches(self, item: str) -> bool:
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return self.pattern.search(item) is not None
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def matches_regexp(pattern: Union[str, Pattern[str]]) -> Matcher[str]:
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"""Matches if object is a string containing a match for a given regular
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expression.
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:param pattern: The regular expression to search for.
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This matcher first checks whether the evaluated object is a string. If so,
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it checks if the regular expression ``pattern`` matches anywhere within the
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evaluated object.
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"""
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if isinstance(pattern, str):
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pattern = re.compile(pattern)
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return StringMatchesPattern(pattern)
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