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_importNZ0123456789ABCDEFstrictcCs tdd|Dt|fS)'40 41 42' -> b'@ab'cSg|]}t|dqSint.0hr (zhex_encode..)serialto_bytessplitlendataerrorsr r r hex_encode&s rcCs&tdddt|Dt|fS)b'@ab' -> '40 41 42'cs|] }dt|VqdSz{:02X} Nformatordr br r r -zhex_decode..)unicodejoinr iterbytesrrr r r hex_decode+s&r'c@s eZdZdddZdddZdS)CodecrcCstdd|DS)rcSrrrr r r rr3rz Codec.encode..)rrrselfrrr r rencode1sz Codec.encodecCtdddt|DS)rrcsrrrr r r rr"7r#zCodec.decode..r$r%rr&r)r r rdecode5sz Codec.decodeNr)__name__ __module__ __qualname__r+r.r r r rr(0s r(c@s<eZdZdZdddZddZddZd d Zdd d ZdS)IncrementalEncoderzIncremental hex encoderrcCs||_d|_dSNr)rstate)r*rr r r__init__=s zIncrementalEncoder.__init__cCs d|_dSr4r5r*r r rresetA zIncrementalEncoder.resetcCs|jSNr7r8r r rgetstateDszIncrementalEncoder.getstatecCs ||_dSr;r7)r*r5r r rsetstateGr:zIncrementalEncoder.setstateFcCs|j}g}|D]>}|tvr)t|}|r"|||d@d}q d|d>}q |dkr;|r8|jdkr8tdd}q |jdkrGtd|q ||_t |S) z Incremental encode, keep track of digits and emit a byte when a pair of hex digits is found. The space is optional unless the error handling is defined to be 'strict'. r rzodd number of hex digitsznon-hex digit found: {!r}) r5upper HEXDIGITSindexappendr UnicodeErrorrrr)r*rfinalr5Zencodedczr r rr+Js$    zIncrementalEncoder.encodeNr/F) r0r1r2__doc__r6r9r<r=r+r r r rr3:s r3c@seZdZdZdddZdS)IncrementalDecoderzIncremental decoderFcCr,)Nrcsrrrr r r rr"hr#z,IncrementalDecoder.decode..r-)r*rrGr r rr.gszIncrementalDecoder.decodeNrJ)r0r1r2rKr.r r r rrLesrLc@eZdZdZdS) StreamWriterz-Combination of hexlify codec and StreamWriterNr0r1r2rKr r r rrNkrNc@rM) StreamReaderz-Combination of hexlify codec and StreamReaderNrOr r r rrQorPrQc CstjdttttttdS)zencodings module APIZhexlify)namer+r.incrementalencoderincrementaldecoder streamwriter streamreader)codecs CodecInforr'r3rLrNrQr r r r getregentryssrYr/)rKZ __future__rrWrr$ NameErrorAttributeErrorstrrCrr'r(r3rLrNrQrYr r r rs$    +