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provinzkraut
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Nov 11, 2025
| from . import inspect | ||
| from . import structs | ||
| from ._version import __version__ | ||
| from ._utils import RegexPatternProtocol |
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Do we want to publish this?
provinzkraut
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Nov 11, 2025
| static bool | ||
| ensure_is_re_pattern_compatible (PyObject *val, const char *param) { | ||
| if (PyUnicode_CheckExact(val)) return true; | ||
| if (PyObject_HasAttrString(val, "pattern") && PyObject_HasAttrString(val, "search")) { |
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This check is currently very rudimentary. How strict do we want to be with this? Another option would be to make the RegexPatternProtocol runtime checkable and then do an isinstance check here. That would certainly be more robust, but is it desirable?
provinzkraut
commented
Nov 11, 2025
| return cls(**kwargs) | ||
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| class RegexPatternProtocol(typing.Protocol): |
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I've kept the required API as minimal as possible here.
provinzkraut
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Nov 11, 2025
| string: str, | ||
| pos: int = 0, | ||
| endpos: int = sys.maxsize, | ||
| ) -> object | None: ... |
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Returning object | None reflects how it's being used internally. This allows greater flexibility, since regex engines mustn't also comply with the re.Match protocol, and we're not doing anything with the match anyway
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Implement #860.