U ~fh@sdZddlmZddlZddlmZmZmZmZm Z m Z ddl m Z m Z ddlmZddd d d Ze d eeZGd ddeeZdS)z3Tools for representing MongoDB regular expressions.) annotationsN)AnyGenericPatternTypeTypeVarUnion)_getstate_slots_setstate_slots)RE_TYPEstrint) str_flagsreturncCstd}d|kr|tjO}d|kr(|tjO}d|kr:|tjO}d|krL|tjO}d|kr^|tjO}d|krp|tjO}|S)Nrilmsux)re IGNORECASELOCALE MULTILINEDOTALLUNICODEVERBOSE)rflagsr./tmp/pip-unpacked-wheel-36gvocj8/bson/regex.pystr_flags_to_ints      r _Tc@seZdZdZdZeZeZdZ e dddddd Z dd d d dddZ dddddZ dZdddddZddddZddddZdS) RegexzBSON regular expression data.patternr zType[Regex[Any]]z Pattern[_T]z Regex[_T])clsregexrcCs(t|tstdt|t|j|jS)aConvert a Python regular expression into a ``Regex`` instance. Note that in Python 3, a regular expression compiled from a :class:`str` has the ``re.UNICODE`` flag set. If it is undesirable to store this flag in a BSON regular expression, unset it first:: >>> pattern = re.compile('.*') >>> regex = Regex.from_native(pattern) >>> regex.flags ^= re.UNICODE >>> db.collection.insert_one({'pattern': regex}) :param regex: A regular expression object from ``re.compile()``. .. warning:: Python regular expressions use a different syntax and different set of flags than MongoDB, which uses `PCRE`_. A regular expression retrieved from the server may not compile in Python, or may match a different set of strings in Python than when used in a MongoDB query. .. _PCRE: http://www.pcre.org/ z3regex must be a compiled regular expression, not %s) isinstancer TypeErrortyper"r$r)r&r'rrr from_native8s zRegex.from_nativerr!zUnion[str, int]None)r$rrcCs`t|ttfstdt|||_t|tr:t||_n"t|trL||_ntdt|dS)aRBSON regular expression data. This class is useful to store and retrieve regular expressions that are incompatible with Python's regular expression dialect. :param pattern: string :param flags: an integer bitmask, or a string of flag characters like "im" for IGNORECASE and MULTILINE z pattern must be a string, not %sz%flags must be a string or int, not %sN) r(r bytesr)r*r$r rr )selfr$rrrr__init__Us    zRegex.__init__rbool)otherrcCs*t|tr"|j|jko |j|jkStSdSN)r(r"r$rNotImplementedr.r1rrr__eq__js z Regex.__eq__NcCs ||k Sr2rr4rrr__ne__rsz Regex.__ne__r )rcCsd|jd|jdS)NzRegex(z, )r#r.rrr__repr__uszRegex.__repr__cCst|j|jS)aCompile this :class:`Regex` as a Python regular expression. .. warning:: Python regular expressions use a different syntax and different set of flags than MongoDB, which uses `PCRE`_. A regular expression retrieved from the server may not compile in Python, or may match a different set of strings in Python than when used in a MongoDB query. :meth:`try_compile()` may raise :exc:`re.error`. .. _PCRE: http://www.pcre.org/ )rcompiler$rr8rrr try_compilexs zRegex.try_compile)r)__name__ __module__ __qualname____doc__ __slots__r __getstate__r __setstate__Z _type_marker classmethodr+r/r5__hash__r6r9r;rrrrr".sr")r? __future__rrtypingrrrrrrZ bson._helpersr r Zbson.sonr r r r-r!r"rrrrs