--- /dev/null
+;;; mm-uu.el --- Return uu stuff as mm handles
+
+;; Copyright (C) 1998-2016 Free Software Foundation, Inc.
+
+;; Author: Shenghuo Zhu <zsh@cs.rochester.edu>
+;; Keywords: postscript uudecode binhex shar forward gnatsweb pgp
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+
+(eval-when-compile (require 'cl))
+(require 'mail-parse)
+(require 'nnheader)
+(require 'mm-decode)
+(require 'mailcap)
+(require 'mml2015)
+
+(autoload 'uudecode-decode-region "uudecode")
+(autoload 'uudecode-decode-region-external "uudecode")
+(autoload 'uudecode-decode-region-internal "uudecode")
+
+(autoload 'binhex-decode-region "binhex")
+(autoload 'binhex-decode-region-external "binhex")
+(autoload 'binhex-decode-region-internal "binhex")
+
+(autoload 'yenc-decode-region "yenc")
+(autoload 'yenc-extract-filename "yenc")
+
+(defcustom mm-uu-decode-function 'uudecode-decode-region
+ "*Function to uudecode.
+Internal function is done in Lisp by default, therefore decoding may
+appear to be horribly slow. You can make Gnus use an external
+decoder, such as uudecode."
+ :type '(choice
+ (function-item :tag "Auto detect" uudecode-decode-region)
+ (function-item :tag "Internal" uudecode-decode-region-internal)
+ (function-item :tag "External" uudecode-decode-region-external))
+ :group 'gnus-article-mime)
+
+(defcustom mm-uu-binhex-decode-function 'binhex-decode-region
+ "*Function to binhex decode.
+Internal function is done in elisp by default, therefore decoding may
+appear to be horribly slow . You can make Gnus use the external Unix
+decoder, such as hexbin."
+ :type '(choice (function-item :tag "Auto detect" binhex-decode-region)
+ (function-item :tag "Internal" binhex-decode-region-internal)
+ (function-item :tag "External" binhex-decode-region-external))
+ :group 'gnus-article-mime)
+
+(defvar mm-uu-yenc-decode-function 'yenc-decode-region)
+
+(defvar mm-uu-beginning-regexp nil)
+
+(defvar mm-dissect-disposition "inline"
+ "The default disposition of uu parts.
+This can be either \"inline\" or \"attachment\".")
+
+(defcustom mm-uu-emacs-sources-regexp "\\.emacs\\.sources"
+ "The regexp of Emacs sources groups."
+ :version "22.1"
+ :type 'regexp
+ :group 'gnus-article-mime)
+
+(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 Ahé <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://slrn.sourceforge.net/docs/slrn-manual-6.html#process_verbatim_marks
+ "^#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)
+ (skip-chars-forward "\n")
+ (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
+ (gnus-format-message
+ "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"))
+ (save-restriction
+ (narrow-to-region (point-min) (point))
+ (setq charset (mail-fetch-field "charset")))
+ (if (and (mm-uu-pgp-encrypted-test)
+ (progn
+ (mml2015-clean-buffer)
+ (funcall (mml2015-clear-decrypt-function))
+ (equal (mm-handle-multipart-ctl-parameter mm-security-handle
+ 'gnus-info)
+ "OK")))
+ (progn
+ ;; Decode charset.
+ (if (and (or charset
+ (setq charset gnus-newsgroup-charset))
+ (setq charset (mm-charset-to-coding-system charset))
+ (not (eq charset 'ascii)))
+ ;; Assume that buffer's multibyteness is turned off.
+ ;; See `mml2015-pgg-clear-decrypt'.
+ (insert (mm-decode-coding-string (prog1
+ (buffer-string)
+ (erase-buffer)
+ (mm-enable-multibyte))
+ charset))
+ (mm-enable-multibyte))
+ (list (mm-make-handle buf mm-uu-text-plain-type)))
+ (list (mm-make-handle buf '("application/pgp-encrypted")))))))
+
+(defun mm-uu-pgp-encrypted-extract ()
+ (let ((mm-security-handle (list (format "multipart/encrypted"))))
+ (mm-set-handle-multipart-parameter
+ mm-security-handle 'protocol "application/x-gnus-pgp-encrypted")
+ (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-encrypted-extract-1 nil
+ mm-security-handle)))
+ mm-security-handle))
+
+(defun mm-uu-gpg-key-skip-to-last ()
+ (let ((point (point))
+ (end-regexp (mm-uu-end-regexp entry))
+ (beginning-regexp (mm-uu-beginning-regexp entry)))
+ (when (and end-regexp
+ (not (mm-uu-configure-p (mm-uu-type entry) 'disabled)))
+ (while (re-search-forward end-regexp nil t)
+ (skip-chars-forward " \t\n\r")
+ (if (looking-at beginning-regexp)
+ (setq point (match-end 0)))))
+ (goto-char point)))
+
+(defun mm-uu-pgp-key-extract ()
+ (let ((buf (mm-uu-copy-to-buffer start-point end-point)))
+ (mm-make-handle buf
+ '("application/pgp-keys"))))
+
+;;;###autoload
+(defun mm-uu-dissect (&optional noheader mime-type)
+ "Dissect the current buffer and return a list of uu handles.
+The optional NOHEADER means there's no header in the buffer.
+MIME-TYPE specifies a MIME type and parameters, which defaults to the
+value of `mm-uu-text-plain-type'."
+ (let ((case-fold-search t)
+ (mm-uu-text-plain-type (or mime-type mm-uu-text-plain-type))
+ text-start start-point end-point file-name result entry func)
+ (save-excursion
+ (goto-char (point-min))
+ (cond
+ (noheader)
+ ((looking-at "\n")
+ (forward-line))
+ ((search-forward "\n\n" nil t)
+ t)
+ (t (goto-char (point-max))))
+ (setq text-start (point))
+ (while (re-search-forward mm-uu-beginning-regexp nil t)
+ (setq start-point (match-beginning 0)
+ entry nil)
+ (let ((alist mm-uu-type-alist)
+ (beginning-regexp (match-string 0)))
+ (while (not entry)
+ (if (string-match (mm-uu-beginning-regexp (car alist))
+ beginning-regexp)
+ (setq entry (car alist))
+ (pop alist))))
+ (if (setq func (mm-uu-function-1 entry))
+ (funcall func))
+ (forward-line);; in case of failure
+ (when (and (not (mm-uu-configure-p (mm-uu-type entry) 'disabled))
+ (let ((end-regexp (mm-uu-end-regexp entry)))
+ (if (not end-regexp)
+ (or (setq end-point (point-max)) t)
+ (prog1
+ (re-search-forward end-regexp nil t)
+ (forward-line)
+ (setq end-point (point)))))
+ (or (not (setq func (mm-uu-function-2 entry)))
+ (funcall func)))
+ (if (and (> start-point text-start)
+ (progn
+ (goto-char text-start)
+ (re-search-forward "." start-point t)))
+ (push
+ (mm-make-handle
+ (mm-uu-copy-to-buffer
+ text-start
+ ;; A start-separator is likely accompanied by
+ ;; a leading newline.
+ (if (and (eq (char-before start-point) ?\n)
+ (eq (char-before (1- start-point)) ?\n))
+ (1- start-point)
+ start-point))
+ mm-uu-text-plain-type)
+ result))
+ (push
+ (funcall (mm-uu-function-extract entry))
+ result)
+ (goto-char (setq text-start end-point))))
+ (when result
+ (goto-char text-start)
+ (when (re-search-forward "." nil t)
+ (push (mm-make-handle
+ (mm-uu-copy-to-buffer
+ ;; An end-separator is likely accompanied by
+ ;; a trailing newline.
+ (if (eq (char-after text-start) ?\n)
+ (1+ text-start)
+ text-start)
+ (point-max))
+ mm-uu-text-plain-type)
+ result))
+ (setq result (cons "multipart/mixed" (nreverse result))))
+ result)))
+
+;;;###autoload
+(defun mm-uu-dissect-text-parts (handle &optional decoded)
+ "Dissect text parts and put uu handles into HANDLE.
+Assume text has been decoded if DECODED is non-nil."
+ (let ((buffer (mm-handle-buffer handle)))
+ (cond ((stringp buffer)
+ (dolist (elem (cdr handle))
+ (mm-uu-dissect-text-parts elem decoded)))
+ ((bufferp buffer)
+ (let ((type (mm-handle-media-type handle))
+ (case-fold-search t) ;; string-match
+ children charset encoding)
+ (when (and
+ (stringp type)
+ ;; Mutt still uses application/pgp even though
+ ;; it has already been withdrawn.
+ (string-match "\\`text/\\|\\`application/pgp\\'" type)
+ (equal (car (mm-handle-disposition handle))
+ "inline")
+ (setq
+ children
+ (with-current-buffer buffer
+ (cond
+ ((or decoded
+ (eq (setq charset (mail-content-type-get
+ (mm-handle-type handle)
+ 'charset))
+ 'gnus-decoded))
+ (setq decoded t)
+ (mm-uu-dissect
+ t (cons type '((charset . gnus-decoded)))))
+ (charset
+ (setq decoded t)
+ (mm-with-multibyte-buffer
+ (insert (mm-decode-string (mm-get-part handle)
+ charset))
+ (mm-uu-dissect
+ t (cons type '((charset . gnus-decoded))))))
+ ((setq encoding (mm-handle-encoding handle))
+ (setq decoded nil)
+ ;; Inherit the multibyteness of the `buffer'.
+ (with-temp-buffer
+ (insert-buffer-substring buffer)
+ (mm-decode-content-transfer-encoding
+ encoding type)
+ (mm-uu-dissect t (list type))))
+ (t
+ (setq decoded nil)
+ (mm-uu-dissect t (list type)))))))
+ ;; Ignore it if a given part is dissected into a single
+ ;; part of which the type is the same as the given one.
+ (if (and (<= (length children) 2)
+ (string-equal (mm-handle-media-type (cadr children))
+ type))
+ (kill-buffer (mm-handle-buffer (cadr children)))
+ (kill-buffer buffer)
+ (setcdr handle (cdr children))
+ (setcar handle (car children)) ;; "multipart/mixed"
+ (dolist (elem (cdr children))
+ (mm-uu-dissect-text-parts elem decoded))))))
+ (t
+ (dolist (elem handle)
+ (mm-uu-dissect-text-parts elem decoded))))))
+
+(provide 'mm-uu)
+
+;; Local Variables:
+;; coding: utf-8
+;; End:
+
+;;; mm-uu.el ends here
projects / packages / blobdiff