o @Bi(@sdZdZdZdZz ddlmZWdSeyCddlZejr.e eZ Gddde ZYdSd dd eDZ Gd dde ZYdSw) ) Utf8Validator(rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr r r r r r r r r r r r r r r r rrrrrrrrrrrrrrr r rrrrrr r rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr rr rrrrrrrr rrrrrr rr rrrrrrrr rrrrrrrrrrrrrrrrNc@4eZdZdZdZddZddZddZd d Zd S) r Incremental UTF-8 validator with constant memory consumption (minimal state). Implements the algorithm "Flexible and Economical UTF-8 Decoder" by Bjoern Hoehrmann (http://bjoern.hoehrmann.de/utf-8/decoder/dfa/).  _codepoint_state_indexcCd|_d|_d|_|dSNrrrresetselfr`/var/www/html/Trade-python/venv/lib/python3.10/site-packages/autobahn/websocket/utf8validator.py__init__Z Utf8Validator.__init__cCsTt|}|jtkr|d@|jd>B|_nd|?|@|_td|jd||_|jSa Eat one UTF-8 octet, and validate on the fly. Returns ``UTF8_ACCEPT`` when enough octets have been consumed, in which case ``self.codepoint`` contains the decoded Unicode code point. Returns ``UTF8_REJECT`` when invalid UTF-8 was encountered. Returns some other positive integer when more octets need to be eaten. ?r )UTF8VALIDATOR_DFA_Sr UTF8_ACCEPTrrbttrrrdecode`s  Utf8Validator.decodecCt|_d|_d|_dSzc Reset validator to start new incremental UTF-8 decode/validation. rNr%rrrrrrrrs Utf8Validator.resetcCst|}d}|j}||kr8td|d>t||}|tkr0||_|j|7_dd||jfS|d7}||ks ||_|j|7_d|tk||jfSa Incrementally validate a chunk of bytes provided as string. Will return a quad ``(valid?, endsOnCodePoint?, currentIndex, totalIndex)``. As soon as an octet is encountered which renders the octet sequence invalid, a quad with ``valid? == False`` is returned. ``currentIndex`` returns the index within the currently consumed chunk, and ``totalIndex`` the index within the total consumed sequence that was the point of bail out. When ``valid? == True``, currentIndex will be ``len(ba)`` and ``totalIndex`` the total amount of consumed bytes. rr"r FrT)lenrr$ UTF8_REJECTrr%rbalistaterrrvalidate{sUtf8Validator.validateN __name__ __module__ __qualname____doc__ __slots__rr)rr8rrrrrL rcCsg|]}t|qSr)chr).0crrr srEc@r) rrrcCrrrrrrrrrrcCs\tt|}|jtkr|d@|jd>B|_nd|?|@|_ttd|jd||_|jSr)ordr$rr%rr&rrrr)s r*cCr+r,r-rrrrrr.r/cCst|}d}|j}||kr>ttd|d>ttt||}|tkr6||_|j|7_dd||jfS|d7}||ks ||_|j|7_d|tk||jfSr0)r1rrFr$r2rr%r3rrrr8s(r9Nr:rrrrrr@) __all__UTF8VALIDATOR_DFAr%r2wsaccel.utf8validatorr ImportErrorsixPY3bytesr$objectjoinrrrrs R