ó Ú"wTc@s—dZddlZddlZd„Zd„Zd„Zd„Zd„Zdejfd „ƒYZd ej fd „ƒYZ d „Z ej e ƒdS( sö Modified utf-7 encoding as used in IMAP v4r1 for encoding mailbox names. Code from here; couldn't find a license statement: http://www.koders.com/python/fid744B4E448B1689C0963942A7928FA049084FAC86.aspx From the RFC: 5.1.3. Mailbox International Naming Convention By convention, international mailbox names are specified using a modified version of the UTF-7 encoding described in [UTF-7]. The purpose of these modifications is to correct the following problems with UTF-7: 1) UTF-7 uses the "+" character for shifting; this conflicts with the common use of "+" in mailbox names, in particular USENET newsgroup names. 2) UTF-7's encoding is BASE64 which uses the "/" character; this conflicts with the use of "/" as a popular hierarchy delimiter. 3) UTF-7 prohibits the unencoded usage of ""; this conflicts with the use of "" as a popular hierarchy delimiter. 4) UTF-7 prohibits the unencoded usage of "~"; this conflicts with the use of "~" in some servers as a home directory indicator. 5) UTF-7 permits multiple alternate forms to represent the same string; in particular, printable US-ASCII chararacters can be represented in encoded form. In modified UTF-7, printable US-ASCII characters except for "&" represent themselves; that is, characters with octet values 0x20-0x25 and 0x27-0x7e. The character "&" (0x26) is represented by the two- octet sequence "&-". All other characters (octet values 0x00-0x1f, 0x7f-0xff, and all Unicode 16-bit octets) are represented in modified BASE64, with a further modification from [UTF-7] that "," is used instead of "/". Modified BASE64 MUST NOT be used to represent any printing US-ASCII character which can represent itself. "&" is used to shift to modified BASE64 and "-" to shift back to US- ASCII. All names start in US-ASCII, and MUST end in US-ASCII (that is, a name that ends with a Unicode 16-bit octet MUST end with a "- "). iÿÿÿÿNcCs1|jdƒ}tj|ƒjdƒjddƒS(Nsutf-16bes =t/t,(tencodetbinasciit b2a_base64trstriptreplace(ts((s9/usr/lib/python2.7/dist-packages/getmailcore/imap_utf7.pytmodified_base647scCs1|r-|jdtdj|ƒƒƒ|2ndS(Ns&%s-t(tappendRtjoin(t_intr((s9/usr/lib/python2.7/dist-packages/getmailcore/imap_utf7.pytdoB64;s cCsàg}g}x¥|D]}t|ƒ}d|ko<dkns]d|koXdknrzt||ƒ|j|ƒq|dkr£t||ƒ|jdƒq|j|ƒqWt||ƒtdj|ƒƒt|ƒfS(Ni i%i'i~t&s&-R (tordRR tstrR tlen(RR R tctordC((s9/usr/lib/python2.7/dist-packages/getmailcore/imap_utf7.pytencoder@s  8    cCs,tj|jddƒdƒ}t|dƒS(NRRs===sutf-16be(Rt a2b_base64Rtunicode(Rtb((s9/usr/lib/python2.7/dist-packages/getmailcore/imap_utf7.pytmodified_unbase64SscCsg}g}x±|D]©}|dkr<| r<|jdƒq|dkr™|r™t|ƒdkrp|jdƒn |jtdj|dƒƒƒg}q|r¯|j|ƒq|j|ƒqW|ré|jtdj|dƒƒƒndj|ƒ}|t|ƒfS(NRt-iR (R RRR (RR tdecodeRtbin_str((s9/usr/lib/python2.7/dist-packages/getmailcore/imap_utf7.pytdecoderWs"   #t StreamReadercBseZdd„ZRS(tstrictcCs t|ƒS(N(R(tselfRterrors((s9/usr/lib/python2.7/dist-packages/getmailcore/imap_utf7.pyRns(t__name__t __module__R(((s9/usr/lib/python2.7/dist-packages/getmailcore/imap_utf7.pyRmst StreamWritercBseZdd„ZRS(RcCs t|ƒS(N(R(R RR!((s9/usr/lib/python2.7/dist-packages/getmailcore/imap_utf7.pyRss(R"R#R(((s9/usr/lib/python2.7/dist-packages/getmailcore/imap_utf7.pyR$rscCs |dkrttttfSdS(Ns imap4-utf-7(RRRR$(tname((s9/usr/lib/python2.7/dist-packages/getmailcore/imap_utf7.pyt imap4_utf_7ws ( t__doc__RtcodecsRRRRRRR$R&tregister(((s9/usr/lib/python2.7/dist-packages/getmailcore/imap_utf7.pyt0s