U d@s|dZddlZddlmZmZmZmZmZmZddl m Z m Z ddl m Z eedddZed eeZGd d d eeZdS) z3Tools for representing MongoDB regular expressions.N)AnyGenericPatternTypeTypeVarUnion)_getstate_slots_setstate_slots)RE_TYPE) 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)r flagsr./tmp/pip-unpacked-wheel-oblwsawz/bson/regex.pystr_flags_to_ints      r_Tc@seZdZdZdZeZeZdZ e e ddddddZ de eeefd d d d ZeedddZd ZeedddZedddZddddZd S)RegexzBSON regular expression data.patternr z Pattern[_T]z Regex[_T])clsregexr cCs(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}) :Parameters: - `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 TypeErrortyperr!r)r#r$rrr from_native7s zRegex.from_nativerN)r!rr cCs`t|ttfstdt|||_t|tr:t||_n"t|trL||_ntdt|dS)apBSON regular expression data. This class is useful to store and retrieve regular expressions that are incompatible with Python's regular expression dialect. :Parameters: - `pattern`: string - `flags`: (optional) 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%strbytesr&r'r!rrint)selfr!rrrr__init__Us    zRegex.__init__)otherr cCs*t|tr"|j|jko |j|jkStSdSN)r%rr!rNotImplementedr,r.rrr__eq__ks z Regex.__eq__cCs ||k Sr/rr1rrr__ne__ssz Regex.__ne__)r cCsd|jd|jdS)NzRegex(z, )r r,rrr__repr__vszRegex.__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!rr5rrr try_compileys zRegex.try_compile)r)__name__ __module__ __qualname____doc__ __slots__r __getstate__r __setstate__Z _type_marker classmethodrr(rrr)r+r-rboolr2__hash__r3r6r8rrrrr-sr)r<rtypingrrrrrrZ bson._helpersrr Zbson.sonr r)r+rr*rrrrrrs