@synindex fn cp
@synindex vr cp
@synindex pg cp
-@dircategory Emacs
-@direntry
-* Emacs MIME: (emacs-mime). The MIME de/composition library.
-@end direntry
-@documentencoding ISO-8859-1
-@iftex
-@finalout
-@end iftex
-@setchapternewpage odd
-
-@ifnottex
+@copying
This file documents the Emacs MIME interface functionality.
-Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004
+Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
+@quotation
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.1 or
any later version published by the Free Software Foundation; with no
Documentation License. If you want to distribute this document
separately from the collection, you can do so by adding a copy of the
license to the document, as described in section 6 of the license.
-@end ifnottex
+@end quotation
+@end copying
-@tex
+@dircategory Emacs
+@direntry
+* Emacs MIME: (emacs-mime). Emacs MIME de/composition library.
+@end direntry
+@iftex
+@finalout
+@end iftex
+@setchapternewpage odd
@titlepage
@title Emacs MIME Manual
@author by Lars Magne Ingebrigtsen
@page
-
@vskip 0pt plus 1filll
-Copyright @copyright{} 1998, 1999, 2000, 2001, 2002, 2003 Free Software
-Foundation, Inc.
-
-Permission is granted to copy, distribute and/or modify this document
-under the terms of the GNU Free Documentation License, Version 1.1 or
-any later version published by the Free Software Foundation; with the
-Invariant Sections being none, with the Front-Cover texts being ``A GNU
-Manual'', and with the Back-Cover Texts as in (a) below. A copy of the
-license is included in the section entitled ``GNU Free Documentation
-License'' in the Emacs manual.
-
-(a) The FSF's Back-Cover Text is: ``You have freedom to copy and modify
-this GNU Manual, like GNU software. Copies published by the Free
-Software Foundation raise funds for GNU development.''
-
-This document is part of a collection distributed under the GNU Free
-Documentation License. If you want to distribute this document
-separately from the collection, you can do so by adding a copy of the
-license to the document, as described in section 6 of the license.
+@insertcopying
@end titlepage
-@page
-
-@end tex
@node Top
@top Emacs MIME
@item mm-inline-large-images
@vindex mm-inline-large-images
-When displaying inline images that are larger than the window, XEmacs
+When displaying inline images that are larger than the window, Emacs
does not enable scrolling, which means that you cannot see the whole
image. To prevent this, the library tries to determine the image size
before displaying it inline, and if it doesn't fit the window, the
@vindex mm-coding-system-priorities
Prioritize coding systems to use for outgoing messages. The default
is @code{nil}, which means to use the defaults in Emacs. It is a list of
-coding system symbols (aliases of coding systems does not work, use
-@kbd{M-x describe-coding-system} to make sure you are not specifying
-an alias in this variable). For example, if you have configured Emacs
+coding system symbols (aliases of coding systems are also allowed, use
+@kbd{M-x describe-coding-system} to make sure you are specifying correct
+coding system names). For example, if you have configured Emacs
to prefer UTF-8, but wish that outgoing messages should be sent in
ISO-8859-1 if possible, you can set this variable to
-@code{(iso-latin-1)}. You can override this setting on a per-message
+@code{(iso-8859-1)}. You can override this setting on a per-message
basis by using the @code{charset} @acronym{MML} tag (@pxref{MML Definition}).
@item mm-content-transfer-encoding-defaults
(digitally signed messages require 7bit encoding). Besides the normal
@acronym{MIME} encodings, @code{qp-or-base64} may be used to indicate that for
each case the most efficient of quoted-printable and base64 should be
-used. You can override this setting on a per-message basis by using
-the @code{encoding} @acronym{MML} tag (@pxref{MML Definition}).
+used.
+
+@code{qp-or-base64} has another effect. It will fold long lines so that
+MIME parts may not be broken by MTA. So do @code{quoted-printable} and
+@code{base64}.
+
+Note that it affects body encoding only when a part is a raw forwarded
+message (which will be made by @code{gnus-summary-mail-forward} with the
+arg 2 for example) or is neither the @samp{text/*} type nor the
+@samp{message/*} type. Even though in those cases, you can override
+this setting on a per-message basis by using the @code{encoding}
+@acronym{MML} tag (@pxref{MML Definition}).
@item mm-use-ultra-safe-encoding
@vindex mm-use-ultra-safe-encoding
The following variables are tweakable:
@table @code
-@item rfc2047-default-charset
-@vindex rfc2047-default-charset
-Characters in this charset should not be decoded by this library.
-This defaults to @code{iso-8859-1}.
-
@item rfc2047-header-encoding-alist
@vindex rfc2047-header-encoding-alist
This is an alist of header / encoding-type pairs. Its main purpose is
The keys can either be header regexps, or @code{t}.
-The values can be either @code{nil}, in which case the header(s) in
-question won't be encoded, or @code{mime}, which means that they will be
-encoded.
+The values can be @code{nil}, in which case the header(s) in question
+won't be encoded, @code{mime}, which means that they will be encoded, or
+@code{address-mime}, which means the header(s) will be encoded carefully
+assuming they contain addresses.
@item rfc2047-charset-encoding-alist
@vindex rfc2047-charset-encoding-alist
Quoted-Printable-like encoding) and @code{B} (base64). This alist
specifies which charset should use which encoding.
-@item rfc2047-encoding-function-alist
-@vindex rfc2047-encoding-function-alist
+@item rfc2047-encode-function-alist
+@vindex rfc2047-encode-function-alist
This is an alist of encoding / function pairs. The encodings are
@code{Q}, @code{B} and @code{nil}.
-@item rfc2047-q-encoding-alist
-@vindex rfc2047-q-encoding-alist
-The @code{Q} encoding isn't quite the same for all headers. Some
-headers allow a narrower range of characters, and that is what this
-variable is for. It's an alist of header regexps / allowable character
-ranges.
-
@item rfc2047-encoded-word-regexp
@vindex rfc2047-encoded-word-regexp
When decoding words, this library looks for matches to this regexp.
+@item rfc2047-encode-encoded-words
+@vindex rfc2047-encode-encoded-words
+The boolean variable specifies whether encoded words
+(e.g. @samp{=?hello?=}) should be encoded again.
+
@end table
Those were the variables, and these are this functions:
@findex rfc2047-decode-string
Decode a string and return the results.
+@item rfc2047-encode-parameter
+@findex rfc2047-encode-parameter
+Encode a parameter in the RFC2047-like style. This is a replacement for
+the @code{rfc2231-encode-string} function. @xref{rfc2231}.
+
+When attaching files as @acronym{MIME} parts, we should use the RFC2231
+encoding to specify the file names containing non-@acronym{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
+@file{~/.gnus.el} file:
+
+@lisp
+(defalias 'mail-header-encode-parameter 'rfc2047-encode-parameter)
+@end lisp
+
@end table
@c mode: texinfo
@c coding: iso-8859-1
@c End:
+
+@ignore
+ arch-tag: c7ef2fd0-a91c-4e10-aa52-c1a2b11b1a8d
+@end ignore
projects / elisp / gnus.git- / blobdiff