o ^] @sdZddlmZddlZddlZzeWn eefy!eZYnwdZ dddZ ddd Z Gd d d ej Z Gd d d ej Z GdddejZGddde ejZGddde ejZddZdS)aLPython 'hex' Codec - 2-digit hex with spaces content transfer encoding. Encode and decode may be a bit missleading at first sight... The textual representation is a hex dump: e.g. "40 41" The "encoded" data of this is the binary form, e.g. b"@A" Therefore decoding is binary to text and thus converting binary data to hex dump. )absolute_importN0123456789ABCDEFstrictcCs tdd|Dt|fS)'40 41 42' -> b'@ab'cSg|]}t|dqSint.0hr(zhex_encode..)serialto_bytessplitlendataerrorsrrr hex_encode&s rcCs&tdddt|Dt|fS)b'@ab' -> '40 41 42'cs|] }dt|VqdSz{:02X} Nformatordr brrr -zhex_decode..)unicodejoinr iterbytesrrrrr hex_decode+s&r(c@s eZdZdddZdddZdS)CodecrcCstdd|DS)rcSrrr r rrrr3rz Codec.encode..)rrrselfrrrrrencode1sz Codec.encodecCtdddt|DS)rrcsrrrr!rrrr#7r$zCodec.decode..r%r&rr'r*rrrdecode5sz Codec.decodeNr)__name__ __module__ __qualname__r,r/rrrrr)0s r)c@s<eZdZdZdddZddZddZd d Zdd d ZdS)IncrementalEncoderzIncremental hex encoderrcCs||_d|_dSNr)rstate)r+rrrr__init__=s zIncrementalEncoder.__init__cCs d|_dSr5r6r+rrrresetA zIncrementalEncoder.resetcCs|jSNr8r9rrrgetstateDszIncrementalEncoder.getstatecCs ||_dSr<r8)r+r6rrrsetstateGr;zIncrementalEncoder.setstateFcCs|j}g}|D]>}|tvr)t|}|r"|||d@d}q d|d>}q |dkr;|r8|jdkr8tdd}q |jdkrGtd|q ||_t |S) z Incremental encode, keep track of digits and emit a byte when a pair of hex digits is found. The space is optional unless the error handling is defined to be 'strict'. r rzodd number of hex digitsznon-hex digit found: {!r}) r6upper HEXDIGITSindexappendr UnicodeErrorrrr)r+rfinalr6encodedczrrrr,Js$    zIncrementalEncoder.encodeNr0F) r1r2r3__doc__r7r:r=r>r,rrrrr4:s r4c@seZdZdZdddZdS)IncrementalDecoderzIncremental decoderFcCr-)Nrcsrrrr!rrrr#hr$z,IncrementalDecoder.decode..r.)r+rrHrrrr/gszIncrementalDecoder.decodeNrL)r1r2r3rMr/rrrrrNesrNc@eZdZdZdS) StreamWriterz-Combination of hexlify codec and StreamWriterNr1r2r3rMrrrrrPkrPc@rO) StreamReaderz-Combination of hexlify codec and StreamReaderNrQrrrrrSorRrSc CstjdttttttdS)zencodings module APIhexlify)namer,r/incrementalencoderincrementaldecoder streamwriter streamreader)codecs CodecInforr(r4rNrPrSrrrr getregentryssr\r0)rM __future__rrZrr% NameErrorAttributeErrorstrrDrr(r)r4rNrPrSr\rrrrs$    +