* utf-7-imap doesn't shift back to US-ASCII
@ 2008-02-28 9:03 Daiki Ueno
2008-02-28 19:44 ` Stefan Monnier
0 siblings, 1 reply; 2+ messages in thread
From: Daiki Ueno @ 2008-02-28 9:03 UTC (permalink / raw)
To: emacs-devel
Hello,
When I tried to access Gmail's outgoing message folder via IMAP with
Gnus, I encountered a problem. The folder name is localized for
Japanese and encoded in UTF-7 + the RFC2060 modification, but Emacs
doesn't seem to encode correctly in that encoding.
RFC2060 5.1 says:
"&" 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 "-
").
For example, here is a mailbox name which mixes English, Japanese,
and Chinese text: ~peter/mail/&ZeVnLIqe-/&U,BTFw-
(encode-coding-string
(decode-coding-string "~peter/mail/&ZeVnLIqe-/&U,BTFw-" 'utf-7-imap)
'utf-7-imap)
=> "~peter/mail/&ZeVnLIqe-/&U,BTFw"
Here is a patch to fix this.
Index: lisp/international/utf-7.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/international/utf-7.el,v
retrieving revision 1.11
diff -w -c -r1.11 utf-7.el
*** lisp/international/utf-7.el 1 Feb 2008 16:01:18 -0000 1.11
--- lisp/international/utf-7.el 28 Feb 2008 08:58:00 -0000
***************
*** 110,116 ****
;; consistent with iconv, at least regarding `='.
(skip-chars-forward "^= \t\n")
(delete-region (point) (point-max))))
! (unless (eobp)
(insert ?-)))))
nil))
--- 110,116 ----
;; consistent with iconv, at least regarding `='.
(skip-chars-forward "^= \t\n")
(delete-region (point) (point-max))))
! (if (or imap (not (eobp)))
(insert ?-)))))
nil))
Regards,
--
Daiki Ueno
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: utf-7-imap doesn't shift back to US-ASCII
2008-02-28 9:03 utf-7-imap doesn't shift back to US-ASCII Daiki Ueno
@ 2008-02-28 19:44 ` Stefan Monnier
0 siblings, 0 replies; 2+ messages in thread
From: Stefan Monnier @ 2008-02-28 19:44 UTC (permalink / raw)
To: Daiki Ueno; +Cc: emacs-devel
> When I tried to access Gmail's outgoing message folder via IMAP with
> Gnus, I encountered a problem. The folder name is localized for
> Japanese and encoded in UTF-7 + the RFC2060 modification, but Emacs
> doesn't seem to encode correctly in that encoding.
Thanks, installed,
Stefan
^ permalink raw reply [flat|nested] 2+ messages in thread
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