U WW5 @sdZddlZddlZzeWneefk r8eZYnXdZdddZdddZ Gd d d ej Z Gd d d ej Z Gd ddej Z Gddde ej Z Gddde 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. NZ0123456789ABCDEFstrictcCs tdd|Dt|fS)'40 41 42' -> b'@ab'cSsg|]}t|dqSint.0hr &szhex_encode..)serialto_bytessplitlendataerrorsr r r hex_encode$srcCs&tdddt|Dt|fS)b'@ab' -> '40 41 42'css|]}dt|VqdSz{:02X} Nformatordr br r r +szhex_decode..)unicodejoinr iterbytesrrr r r hex_decode)sr"c@s eZdZdddZdddZdS) CodecrcCstdd|DS)rcSsg|]}t|dqSrrrr r r r 1sz Codec.encode..)rrrselfrrr r r encode/sz Codec.encodecCstdddt|DS)rrcss|]}dt|VqdSrrrr r r r5szCodec.decode..rr rr!r$r r r decode3sz Codec.decodeN)r)r)__name__ __module__ __qualname__r&r(r r r r r#.s r#c@s<eZdZdZdddZddZddZd d Zdd d ZdS)IncrementalEncoderzIncremental hex encoderrcCs||_d|_dSNr)rstate)r%rr r r __init__;szIncrementalEncoder.__init__cCs d|_dSr-r.r%r r r reset?szIncrementalEncoder.resetcCs|jSNr0r1r r r getstateBszIncrementalEncoder.getstatecCs ||_dSr3r0)r%r.r r r setstateEszIncrementalEncoder.setstateFcCs|j}g}|D]|}|tkrRt|}|rD|||d@d}qd|d>}q|dkrv|rp|jdkrptdd}q|jdkrtd|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}) r.upper HEXDIGITSindexappendr UnicodeErrorrrr)r%rfinalr.Zencodedczr r r r&Hs"   zIncrementalEncoder.encodeN)r)F) r)r*r+__doc__r/r2r4r5r&r r r r r,8s  r,c@seZdZdZdddZdS)IncrementalDecoderzIncremental decoderFcCstdddt|DS)Nrcss|]}dt|VqdSrrrr r r rfsz,IncrementalDecoder.decode..r')r%rr?r r r r(eszIncrementalDecoder.decodeN)F)r)r*r+rBr(r r r r rCcsrCc@seZdZdZdS) StreamWriterz-Combination of hexlify codec and StreamWriterNr)r*r+rBr r r r rDisrDc@seZdZdZdS) StreamReaderz-Combination of hexlify codec and StreamReaderNrEr r r r rFmsrFc CstjdttttttdS)zencodings module APIZhexlify)namer&r(incrementalencoderincrementaldecoder streamwriter streamreader)codecs CodecInforr"r,rCrDrFr r r r getregentryqsrN)r)r)rBrLrr NameErrorAttributeErrorstrr;rr"r#r,rCrDrFrNr r r r  s     +