+(defcustom mm-uu-diff-groups-regexp
+ "\\(gmane\\|gnu\\)\\..*\\(diff\\|commit\\|cvs\\|bug\\|devel\\)"
+ "Regexp matching diff groups."
+ :version "22.1"
+ :type 'regexp
+ :group 'gnus-article-mime)
+
+(defcustom mm-uu-tex-groups-regexp "\\.tex\\>"
+ "*Regexp matching TeX groups."
+ :version "23.1"
+ :type 'regexp
+ :group 'gnus-article-mime)
+
+(defvar mm-uu-type-alist
+ '((postscript
+ "^%!PS-"
+ "^%%EOF$"
+ mm-uu-postscript-extract
+ nil)
+ (uu ;; Maybe we should have a more strict test here.
+ "^begin[ \t]+0?[0-7][0-7][0-7][ \t]+"
+ "^end[ \t]*$"
+ mm-uu-uu-extract
+ mm-uu-uu-filename)
+ (binhex
+ "^:.\\{63,63\\}$"
+ ":$"
+ mm-uu-binhex-extract
+ nil
+ mm-uu-binhex-filename)
+ (yenc
+ "^=ybegin.*size=[0-9]+.*name=.*$"
+ "^=yend.*size=[0-9]+"
+ mm-uu-yenc-extract
+ mm-uu-yenc-filename)
+ (shar
+ "^#! */bin/sh"
+ "^exit 0$"
+ mm-uu-shar-extract)
+ (forward
+ ;; Thanks to Edward J. Sabol <sabol@alderaan.gsfc.nasa.gov> and
+ ;; Peter von der Ah\'e <pahe@daimi.au.dk>
+ "^-+ \\(Start of \\)?Forwarded message"
+ "^-+ End \\(of \\)?forwarded message"
+ mm-uu-forward-extract
+ nil
+ mm-uu-forward-test)
+ (gnatsweb
+ "^----gnatsweb-attachment----"
+ nil
+ mm-uu-gnatsweb-extract)
+ (pgp-signed
+ "^-----BEGIN PGP SIGNED MESSAGE-----"
+ "^-----END PGP SIGNATURE-----"
+ mm-uu-pgp-signed-extract
+ nil
+ nil)
+ (pgp-encrypted
+ "^-----BEGIN PGP MESSAGE-----"
+ "^-----END PGP MESSAGE-----"
+ mm-uu-pgp-encrypted-extract
+ nil
+ nil)
+ (pgp-key
+ "^-----BEGIN PGP PUBLIC KEY BLOCK-----"
+ "^-----END PGP PUBLIC KEY BLOCK-----"
+ mm-uu-pgp-key-extract
+ mm-uu-gpg-key-skip-to-last
+ nil)
+ (emacs-sources
+ "^;;;?[ \t]*[^ \t]+\\.el[ \t]*--"
+ "^;;;?[ \t]*\\([^ \t]+\\.el\\)[ \t]+ends here"
+ mm-uu-emacs-sources-extract
+ nil
+ mm-uu-emacs-sources-test)
+ (diff
+ "^Index: "
+ nil
+ mm-uu-diff-extract
+ nil
+ mm-uu-diff-test)
+ (diff
+ "^=== modified file "
+ nil
+ mm-uu-diff-extract
+ nil
+ mm-uu-diff-test)
+ (git-format-patch
+ "^diff --git "
+ "^-- "
+ mm-uu-diff-extract
+ nil
+ mm-uu-diff-test)
+ (message-marks
+ ;; Text enclosed with tags similar to `message-mark-insert-begin' and
+ ;; `message-mark-insert-end'. Don't use those variables to avoid
+ ;; dependency on `message.el'.
+ "^-+[8<>]*-\\{9,\\}[a-z ]+-\\{9,\\}[a-z ]+-\\{9,\\}[8<>]*-+$"
+ "^-+[8<>]*-\\{9,\\}[a-z ]+-\\{9,\\}[a-z ]+-\\{9,\\}[8<>]*-+$"
+ (lambda () (mm-uu-verbatim-marks-extract 0 0 1 -1))
+ nil)
+ ;; Omitting [a-z8<] leads to false positives (bogus signature separators
+ ;; and mailing list banners).
+ (insert-marks
+ "^ *\\(-\\|_\\)\\{30,\\}.*[a-z8<].*\\(-\\|_\\)\\{30,\\} *$"
+ "^ *\\(-\\|_\\)\\{30,\\}.*[a-z8<].*\\(-\\|_\\)\\{30,\\} *$"
+ (lambda () (mm-uu-verbatim-marks-extract 0 0 1 -1))
+ nil)
+ (verbatim-marks
+ ;; slrn-style verbatim marks, see
+ ;; http://www.slrn.org/manual/slrn-manual-6.html#ss6.81
+ "^#v\\+"
+ "^#v\\-$"
+ (lambda () (mm-uu-verbatim-marks-extract 0 0))
+ nil)
+ (LaTeX
+ "^\\([\\\\%][^\n]+\n\\)*\\\\documentclass.*[[{%]"
+ "^\\\\end{document}"
+ mm-uu-latex-extract
+ nil
+ mm-uu-latex-test)
+ (org-src-code-block
+ "^[ \t]*#\\+begin_"
+ "^[ \t]*#\\+end_"
+ mm-uu-org-src-code-block-extract)
+ (org-meta-line
+ "^[ \t]*#\\+[[:alpha:]]+: "
+ "$"
+ mm-uu-org-src-code-block-extract))
+ "A list of specifications for non-MIME attachments.
+Each element consist of the following entries: label,
+start-regexp, end-regexp, extract-function, test-function.
+
+After modifying this list you must run \\[mm-uu-configure].
+
+You can disable elements from this list by customizing
+`mm-uu-configure-list'.")
+
+(defcustom mm-uu-configure-list '((shar . disabled))
+ "A list of mm-uu configuration.
+To disable dissecting shar codes, for instance, add
+`(shar . disabled)' to this list."
+ :type 'alist
+ :options (mapcar (lambda (entry)
+ (list (car entry) '(const disabled)))
+ mm-uu-type-alist)
+ :group 'gnus-article-mime)
+
+(defvar mm-uu-text-plain-type '("text/plain" (charset . gnus-decoded))
+ "MIME type and parameters for text/plain parts.
+`gnus-decoded' is a fake charset, which means no further decoding.")
+
+;; functions
+
+(defsubst mm-uu-type (entry)
+ (car entry))
+
+(defsubst mm-uu-beginning-regexp (entry)
+ (nth 1 entry))
+
+(defsubst mm-uu-end-regexp (entry)
+ (nth 2 entry))
+
+(defsubst mm-uu-function-extract (entry)
+ (nth 3 entry))
+
+(defsubst mm-uu-function-1 (entry)
+ (nth 4 entry))
+
+(defsubst mm-uu-function-2 (entry)
+ (nth 5 entry))
+
+;; In Emacs 22, we could use `min-colors' in the face definition. But Emacs
+;; 21 and XEmacs don't support it.
+(defcustom mm-uu-hide-markers
+ (< 16 (or (and (fboundp 'defined-colors)
+ (length (defined-colors)))
+ (and (fboundp 'device-color-cells)
+ (device-color-cells))
+ 0))
+ "If non-nil, hide verbatim markers.
+The value should be nil on displays where the face
+`mm-uu-extract' isn't distinguishable to the face `default'."
+ :type '(choice (const :tag "Hide" t)
+ (const :tag "Don't hide" nil))
+ :version "23.1" ;; No Gnus
+ :group 'gnus-article-mime)
+
+(defface mm-uu-extract '(;; Inspired by `gnus-cite-3'
+ (((type tty)
+ (class color)
+ (background dark))
+ (:background "dark blue"))
+ (((class color)
+ (background dark))
+ (:foreground "light yellow"
+ :background "dark green"))
+ (((type tty)
+ (class color)
+ (background light))
+ (:foreground "dark blue"))
+ (((class color)
+ (background light))
+ (:foreground "dark green"
+ :background "light yellow"))
+ (t
+ ()))
+ "Face for extracted buffers."
+ ;; See `mm-uu-verbatim-marks-extract'.
+ :version "23.1" ;; No Gnus
+ :group 'gnus-article-mime)
+
+(defun mm-uu-copy-to-buffer (&optional from to properties)
+ "Copy the contents of the current buffer to a fresh buffer.
+Return that buffer.
+
+If PROPERTIES is non-nil, PROPERTIES are applied to the buffer,
+see `set-text-properties'. If PROPERTIES equals t, this means to
+apply the face `mm-uu-extract'."
+ (let ((obuf (current-buffer))
+ (multi (and (boundp 'enable-multibyte-characters)
+ enable-multibyte-characters))
+ (coding-system
+ ;; Might not exist in non-MULE XEmacs
+ (when (boundp 'buffer-file-coding-system)
+ buffer-file-coding-system)))
+ (with-current-buffer (generate-new-buffer " *mm-uu*")
+ (if multi (mm-enable-multibyte) (mm-disable-multibyte))
+ (setq buffer-file-coding-system coding-system)
+ (insert-buffer-substring obuf from to)
+ (cond ((eq properties t)
+ (set-text-properties (point-min) (point-max)
+ '(face mm-uu-extract)))
+ (properties
+ (set-text-properties (point-min) (point-max) properties)))
+ (current-buffer))))
+
+(defun mm-uu-configure-p (key val)
+ (member (cons key val) mm-uu-configure-list))
+
+(defun mm-uu-configure (&optional symbol value)
+ "Configure detection of non-MIME attachments."
+ (interactive)
+ (if symbol (set-default symbol value))
+ (setq mm-uu-beginning-regexp nil)
+ (mapcar (lambda (entry)
+ (if (mm-uu-configure-p (mm-uu-type entry) 'disabled)
+ nil
+ (setq mm-uu-beginning-regexp
+ (concat mm-uu-beginning-regexp
+ (if mm-uu-beginning-regexp "\\|")
+ (mm-uu-beginning-regexp entry)))))
+ mm-uu-type-alist))
+
+(mm-uu-configure)
+
+(defvar file-name)
+(defvar start-point)
+(defvar end-point)
+(defvar entry)
+
+(defun mm-uu-uu-filename ()
+ (if (looking-at ".+")
+ (setq file-name
+ (let ((nnheader-file-name-translation-alist
+ '((?/ . ?,) (?\ . ?_) (?* . ?_) (?$ . ?_))))
+ (nnheader-translate-file-chars (match-string 0))))))
+
+(defun mm-uu-binhex-filename ()
+ (setq file-name
+ (ignore-errors
+ (binhex-decode-region start-point end-point t))))
+
+(defun mm-uu-yenc-filename ()
+ (goto-char start-point)
+ (setq file-name
+ (ignore-errors
+ (yenc-extract-filename))))
+
+(defun mm-uu-forward-test ()
+ (save-excursion
+ (goto-char start-point)
+ (forward-line)
+ (looking-at "[\r\n]*[a-zA-Z][a-zA-Z0-9-]*:")))
+
+(defun mm-uu-postscript-extract ()
+ (mm-make-handle (mm-uu-copy-to-buffer start-point end-point)
+ '("application/postscript")))
+
+(defun mm-uu-verbatim-marks-extract (start-offset end-offset
+ &optional
+ start-hide
+ end-hide)
+ (let ((start (or (and mm-uu-hide-markers
+ start-hide)
+ start-offset
+ 1))
+ (end (or (and mm-uu-hide-markers
+ end-hide)
+ end-offset
+ -1)))
+ (mm-make-handle
+ (mm-uu-copy-to-buffer
+ (progn (goto-char start-point)
+ (forward-line start)
+ (point))
+ (progn (goto-char end-point)
+ (forward-line end)
+ (point))
+ t)
+ '("text/x-verbatim" (charset . gnus-decoded)))))
+
+(defun mm-uu-latex-extract ()
+ (mm-make-handle
+ (mm-uu-copy-to-buffer start-point end-point t)
+ ;; application/x-tex?
+ '("text/x-verbatim" (charset . gnus-decoded))))
+
+(defun mm-uu-emacs-sources-extract ()
+ (mm-make-handle (mm-uu-copy-to-buffer start-point end-point)
+ '("application/emacs-lisp" (charset . gnus-decoded))
+ nil nil
+ (list mm-dissect-disposition
+ (cons 'filename file-name))))
+
+(defun mm-uu-org-src-code-block-extract ()
+ (mm-make-handle (mm-uu-copy-to-buffer start-point end-point)
+ '("text/x-org")))
+
+(defvar gnus-newsgroup-name)
+
+(defun mm-uu-emacs-sources-test ()
+ (setq file-name (match-string 1))
+ (and gnus-newsgroup-name
+ mm-uu-emacs-sources-regexp
+ (string-match mm-uu-emacs-sources-regexp gnus-newsgroup-name)))
+
+(defun mm-uu-diff-extract ()
+ (mm-make-handle (mm-uu-copy-to-buffer start-point end-point)
+ '("text/x-patch" (charset . gnus-decoded))))
+
+(defun mm-uu-diff-test ()
+ (and gnus-newsgroup-name
+ mm-uu-diff-groups-regexp
+ (string-match mm-uu-diff-groups-regexp gnus-newsgroup-name)))
+
+(defun mm-uu-latex-test ()
+ (and gnus-newsgroup-name
+ mm-uu-tex-groups-regexp
+ (string-match mm-uu-tex-groups-regexp gnus-newsgroup-name)))
+
+(defun mm-uu-forward-extract ()
+ (mm-make-handle (mm-uu-copy-to-buffer
+ (progn (goto-char start-point) (forward-line) (point))
+ (progn (goto-char end-point) (forward-line -1) (point)))
+ '("message/rfc822" (charset . gnus-decoded))))
+
+(defun mm-uu-uu-extract ()
+ (mm-make-handle (mm-uu-copy-to-buffer start-point end-point)
+ (list (or (and file-name
+ (string-match "\\.[^\\.]+$"
+ file-name)
+ (mailcap-extension-to-mime
+ (match-string 0 file-name)))
+ "application/octet-stream"))
+ 'x-uuencode nil
+ (if (and file-name (not (equal file-name "")))
+ (list mm-dissect-disposition
+ (cons 'filename file-name)))))
+
+(defun mm-uu-binhex-extract ()
+ (mm-make-handle (mm-uu-copy-to-buffer start-point end-point)
+ (list (or (and file-name
+ (string-match "\\.[^\\.]+$" file-name)
+ (mailcap-extension-to-mime
+ (match-string 0 file-name)))
+ "application/octet-stream"))
+ 'x-binhex nil
+ (if (and file-name (not (equal file-name "")))
+ (list mm-dissect-disposition
+ (cons 'filename file-name)))))
+
+(defvar gnus-original-article-buffer) ; gnus.el
+
+(defun mm-uu-yenc-extract ()
+ ;; This might not be exactly correct, but we sure can't get the
+ ;; binary data from the article buffer, since that's already in a
+ ;; non-binary charset. So get it from the original article buffer.
+ (mm-make-handle (with-current-buffer gnus-original-article-buffer
+ (mm-uu-copy-to-buffer start-point end-point))
+ (list (or (and file-name
+ (string-match "\\.[^\\.]+$" file-name)
+ (mailcap-extension-to-mime
+ (match-string 0 file-name)))
+ "application/octet-stream"))
+ 'x-yenc nil
+ (if (and file-name (not (equal file-name "")))
+ (list mm-dissect-disposition
+ (cons 'filename file-name)))))
+
+
+(defun mm-uu-shar-extract ()
+ (mm-make-handle (mm-uu-copy-to-buffer start-point end-point)
+ '("application/x-shar")))
+
+(defun mm-uu-gnatsweb-extract ()
+ (save-restriction
+ (goto-char start-point)
+ (forward-line)
+ (narrow-to-region (point) end-point)
+ (mm-dissect-buffer t)))
+
+(defun mm-uu-pgp-signed-test (&rest rest)
+ (and
+ mml2015-use
+ (mml2015-clear-verify-function)
+ (cond
+ ((eq mm-verify-option 'never) nil)
+ ((eq mm-verify-option 'always) t)
+ ((eq mm-verify-option 'known) t)
+ (t (prog1
+ (y-or-n-p "Verify pgp signed part? ")
+ (message ""))))))
+
+(defvar gnus-newsgroup-charset)
+
+(defun mm-uu-pgp-signed-extract-1 (handles ctl)
+ (let ((buf (mm-uu-copy-to-buffer (point-min) (point-max))))
+ (with-current-buffer buf
+ (if (mm-uu-pgp-signed-test)
+ (progn
+ (mml2015-clean-buffer)
+ (let ((coding-system-for-write (or buffer-file-coding-system
+ gnus-newsgroup-charset
+ 'iso-8859-1))
+ (coding-system-for-read (or buffer-file-coding-system
+ gnus-newsgroup-charset
+ 'iso-8859-1)))
+ (funcall (mml2015-clear-verify-function))))
+ (when (and mml2015-use (null (mml2015-clear-verify-function)))
+ (mm-set-handle-multipart-parameter
+ mm-security-handle 'gnus-details
+ (format "Clear verification not supported by `%s'.\n" mml2015-use)))
+ (mml2015-extract-cleartext-signature))
+ (list (mm-make-handle buf mm-uu-text-plain-type)))))
+
+(defun mm-uu-pgp-signed-extract ()
+ (let ((mm-security-handle (list (format "multipart/signed"))))
+ (mm-set-handle-multipart-parameter
+ mm-security-handle 'protocol "application/x-gnus-pgp-signature")
+ (save-restriction
+ (narrow-to-region start-point end-point)
+ (add-text-properties 0 (length (car mm-security-handle))
+ (list 'buffer (mm-uu-copy-to-buffer))
+ (car mm-security-handle))
+ (setcdr mm-security-handle
+ (mm-uu-pgp-signed-extract-1 nil
+ mm-security-handle)))
+ mm-security-handle))
+
+(defun mm-uu-pgp-encrypted-test (&rest rest)
+ (and
+ mml2015-use
+ (mml2015-clear-decrypt-function)
+ (cond
+ ((eq mm-decrypt-option 'never) nil)
+ ((eq mm-decrypt-option 'always) t)
+ ((eq mm-decrypt-option 'known) t)
+ (t (prog1
+ (y-or-n-p "Decrypt pgp encrypted part? ")
+ (message ""))))))
+
+(defun mm-uu-pgp-encrypted-extract-1 (handles ctl)
+ (let ((buf (mm-uu-copy-to-buffer (point-min) (point-max)))
+ (first t)
+ charset)
+ ;; Make sure there's a blank line between header and body.
+ (with-current-buffer buf
+ (goto-char (point-min))
+ (while (prog2
+ (forward-line 1)
+ (if first
+ (looking-at "[^\t\n ]+:")
+ (looking-at "[^\t\n ]+:\\|[\t ]"))
+ (setq first nil)))
+ (unless (memq (char-after) '(?\n nil))
+ (insert "\n"))