* Re: gnus doesn't encode non-ascii attachment filenames
[not found] <8764njdbxi.fsf@emacsfans.org>
@ 2006-02-14 22:49 ` Katsumi Yamaoka
0 siblings, 0 replies; only message in thread
From: Katsumi Yamaoka @ 2006-02-14 22:49 UTC (permalink / raw)
Cc: bugs, ding
>>>>> In <8764njdbxi.fsf@emacsfans.org> Zhang Wei wrote:
> While composing mail, if I attach a file with non-ascii(chinese
> actually) filename, it's failed to correctly encode the filename.
> --
> Zhang Wei or Brep
> <brep@smth.org>
How is it incorrect? Gnus does the RFC2231 encoding, that is
very correct. However, in fact, many mail softwares don't
understand it. They likely use the RFC2047-like encoding that
can understand only them. That has not been standardized. Gnus
can handle such an encoding, though.
Here's an extract from the Emacs MIME manual. Does it help?
`rfc2047-encode-parameter'
Encode a parameter in the RFC2047-like style. This is a
replacement for the `rfc2231-encode-string' function. *Note
rfc2231::.
When attaching files as MIME parts, we should use the RFC2231
encoding to specify the file names containing non-ASCII
characters. However, many mail softwares don't support it in
practice and recipients won't be able to extract files with
correct names. Instead, the RFC2047-like encoding is acceptable
generally. This function provides the very RFC2047-like encoding,
resigning to such a regrettable trend. To use it, put the
following line in your `~/.gnus.el' file:
(defalias 'mail-header-encode-parameter 'rfc2047-encode-parameter)
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