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- ;;; gnus-art.el --- article mode commands for Gnus
- ;; Copyright (C) 1996,97 Free Software Foundation, Inc.
-
- ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
- ;; Keywords: news
-
- ;; 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 2, 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; see the file COPYING. If not, write to the
- ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- ;; Boston, MA 02111-1307, USA.
-
- ;;; Commentary:
-
- ;;; Code:
-
- (eval-when-compile (require 'cl))
-
- (require 'custom)
- (require 'gnus)
- (require 'gnus-sum)
- (require 'gnus-spec)
- (require 'gnus-int)
- (require 'browse-url)
-
- (defgroup gnus-article nil
- "Article display."
- :link '(custom-manual "(gnus)The Article Buffer")
- :group 'gnus)
-
- (defgroup gnus-article-hiding nil
- "Hiding article parts."
- :link '(custom-manual "(gnus)Article Hiding")
- :group 'gnus-article)
-
- (defgroup gnus-article-highlight nil
- "Article highlighting."
- :link '(custom-manual "(gnus)Article Highlighting")
- :group 'gnus-article
- :group 'gnus-visual)
-
- (defgroup gnus-article-signature nil
- "Article signatures."
- :link '(custom-manual "(gnus)Article Signature")
- :group 'gnus-article)
-
- (defgroup gnus-article-headers nil
- "Article headers."
- :link '(custom-manual "(gnus)Hiding Headers")
- :group 'gnus-article)
-
- (defgroup gnus-article-washing nil
- "Special commands on articles."
- :link '(custom-manual "(gnus)Article Washing")
- :group 'gnus-article)
-
- (defgroup gnus-article-emphasis nil
- "Fontisizing articles."
- :link '(custom-manual "(gnus)Article Fontisizing")
- :group 'gnus-article)
-
- (defgroup gnus-article-saving nil
- "Saving articles."
- :link '(custom-manual "(gnus)Saving Articles")
- :group 'gnus-article)
-
- (defgroup gnus-article-mime nil
- "Worshiping the MIME wonder."
- :link '(custom-manual "(gnus)Using MIME")
- :group 'gnus-article)
-
- (defgroup gnus-article-buttons nil
- "Pushable buttons in the article buffer."
- :link '(custom-manual "(gnus)Article Buttons")
- :group 'gnus-article)
-
- (defgroup gnus-article-various nil
- "Other article options."
- :link '(custom-manual "(gnus)Misc Article")
- :group 'gnus-article)
-
- (defcustom gnus-ignored-headers
- '("^Path:" "^Posting-Version:" "^Article-I.D.:" "^Expires:"
- "^Date-Received:" "^References:" "^Control:" "^Xref:" "^Lines:"
- "^Posted:" "^Relay-Version:" "^Message-ID:" "^Nf-ID:" "^Nf-From:"
- "^Approved:" "^Sender:" "^Received:" "^Mail-from:")
- "All headers that match this regexp will be hidden.
- This variable can also be a list of regexps of headers to be ignored.
- If `gnus-visible-headers' is non-nil, this variable will be ignored."
- :type '(choice :custom-show nil
- regexp
- (repeat regexp))
- :group 'gnus-article-hiding)
-
- (defcustom gnus-visible-headers
- "^From:\\|^Newsgroups:\\|^Subject:\\|^Date:\\|^Followup-To:\\|^Reply-To:\\|^Organization:\\|^Summary:\\|^Keywords:\\|^To:\\|^Cc:\\|^Posted-To:\\|^Mail-Copies-To:\\|^Apparently-To:\\|^Gnus-Warning:\\|^Resent-From"
- "All headers that do not match this regexp will be hidden.
- This variable can also be a list of regexp of headers to remain visible.
- If this variable is non-nil, `gnus-ignored-headers' will be ignored."
- :type '(repeat :value-to-internal (lambda (widget value)
- (custom-split-regexp-maybe value))
- :match (lambda (widget value)
- (or (stringp value)
- (widget-editable-list-match widget value)))
- regexp)
- :group 'gnus-article-hiding)
-
- (defcustom gnus-sorted-header-list
- '("^From:" "^Subject:" "^Summary:" "^Keywords:" "^Newsgroups:"
- "^Followup-To:" "^To:" "^Cc:" "^Date:" "^Organization:")
- "This variable is a list of regular expressions.
- If it is non-nil, headers that match the regular expressions will
- be placed first in the article buffer in the sequence specified by
- this list."
- :type '(repeat regexp)
- :group 'gnus-article-hiding)
-
- (defcustom gnus-boring-article-headers '(empty followup-to reply-to)
- "Headers that are only to be displayed if they have interesting data.
- Possible values in this list are `empty', `newsgroups', `followup-to',
- `reply-to', and `date'."
- :type '(set (const :tag "Headers with no content." empty)
- (const :tag "Newsgroups with only one group." newsgroups)
- (const :tag "Followup-to identical to newsgroups." followup-to)
- (const :tag "Reply-to identical to from." reply-to)
- (const :tag "Date less than four days old." date))
- :group 'gnus-article-hiding)
-
- (defcustom gnus-signature-separator '("^-- $" "^-- *$")
- "Regexp matching signature separator.
- This can also be a list of regexps. In that case, it will be checked
- from head to tail looking for a separator. Searches will be done from
- the end of the buffer."
- :type '(repeat string)
- :group 'gnus-article-signature)
-
- (defcustom gnus-signature-limit nil
- "Provide a limit to what is considered a signature.
- If it is a number, no signature may not be longer (in characters) than
- that number. If it is a floating point number, no signature may be
- longer (in lines) than that number. If it is a function, the function
- will be called without any parameters, and if it returns nil, there is
- no signature in the buffer. If it is a string, it will be used as a
- regexp. If it matches, the text in question is not a signature."
- :type '(choice integer number function regexp)
- :group 'gnus-article-signature)
-
- (defcustom gnus-hidden-properties '(invisible t intangible t)
- "Property list to use for hiding text."
- :type 'sexp
- :group 'gnus-article-hiding)
-
- (defcustom gnus-article-x-face-command
- "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | xv -quit -"
- "String or function to be executed to display an X-Face header.
- If it is a string, the command will be executed in a sub-shell
- asynchronously. The compressed face will be piped to this command."
- :type 'string ;Leave function case to Lisp.
- :group 'gnus-article-washing)
-
- (defcustom gnus-article-x-face-too-ugly nil
- "Regexp matching posters whose face shouldn't be shown automatically."
- :type 'regexp
- :group 'gnus-article-washing)
-
- (defcustom gnus-emphasis-alist
- (let ((format
- "\\(\\s-\\|^\\|[-\"]\\|\\s(\\|\\s)\\)\\(%s\\(\\w+\\(\\s-+\\w+\\)*[.,]?\\)%s\\)\\(\\s-\\|[-?!.,;:\"]\\|\\s(\\|\\s)\\)")
- (types
- '(("_" "_" underline)
- ("/" "/" italic)
- ("\\*" "\\*" bold)
- ("_/" "/_" underline-italic)
- ("_\\*" "\\*_" underline-bold)
- ("\\*/" "/\\*" bold-italic)
- ("_\\*/" "/\\*_" underline-bold-italic))))
- `(("\\(\\s-\\|^\\)\\(_\\(\\(\\w\\|_[^_]\\)+\\)_\\)\\(\\s-\\|[?!.,;]\\)"
- 2 3 gnus-emphasis-underline)
- ,@(mapcar
- (lambda (spec)
- (list
- (format format (car spec) (cadr spec))
- 2 3 (intern (format "gnus-emphasis-%s" (caddr spec)))))
- types)))
- "Alist that says how to fontify certain phrases.
- Each item looks like this:
-
- (\"_\\\\(\\\\w+\\\\)_\" 0 1 'underline)
-
- The first element is a regular expression to be matched. The second
- is a number that says what regular expression grouping used to find
- the entire emphasized word. The third is a number that says what
- regexp grouping should be displayed and highlighted. The fourth
- is the face used for highlighting."
- :type '(repeat (list :value ("" 0 0 default)
- regexp
- (integer :tag "Match group")
- (integer :tag "Emphasize group")
- face))
- :group 'gnus-article-emphasis)
-
- (defface gnus-emphasis-bold '((t (:bold t)))
- "Face used for displaying strong emphasized text (*word*)."
- :group 'gnus-article-emphasis)
-
- (defface gnus-emphasis-italic '((t (:italic t)))
- "Face used for displaying italic emphasized text (/word/)."
- :group 'gnus-article-emphasis)
-
- (defface gnus-emphasis-underline '((t (:underline t)))
- "Face used for displaying underlined emphasized text (_word_)."
- :group 'gnus-article-emphasis)
-
- (defface gnus-emphasis-underline-bold '((t (:bold t :underline t)))
- "Face used for displaying underlined bold emphasized text (_*word*_)."
- :group 'gnus-article-emphasis)
-
- (defface gnus-emphasis-underline-italic '((t (:italic t :underline t)))
- "Face used for displaying underlined italic emphasized text (_*word*_)."
- :group 'gnus-article-emphasis)
-
- (defface gnus-emphasis-bold-italic '((t (:bold t :italic t)))
- "Face used for displaying bold italic emphasized text (/*word*/)."
- :group 'gnus-article-emphasis)
-
- (defface gnus-emphasis-underline-bold-italic
- '((t (:bold t :italic t :underline t)))
- "Face used for displaying underlined bold italic emphasized text.
- Esample: (_/*word*/_)."
- :group 'gnus-article-emphasis)
-
- (defcustom gnus-article-time-format "%a, %b %d %Y %T %Z"
- "Format for display of Date headers in article bodies.
- See `format-time-zone' for the possible values."
- :type 'string
- :link '(custom-manual "(gnus)Article Date")
- :group 'gnus-article-washing)
-
- (eval-and-compile
- (autoload 'hexl-hex-string-to-integer "hexl")
- (autoload 'timezone-make-date-arpa-standard "timezone")
- (autoload 'mail-extract-address-components "mail-extr"))
-
- (defcustom gnus-save-all-headers t
- "*If non-nil, don't remove any headers before saving."
- :group 'gnus-article-saving
- :type 'boolean)
-
- (defcustom gnus-prompt-before-saving 'always
- "*This variable says how much prompting is to be done when saving articles.
- If it is nil, no prompting will be done, and the articles will be
- saved to the default files. If this variable is `always', each and
- every article that is saved will be preceded by a prompt, even when
- saving large batches of articles. If this variable is neither nil not
- `always', there the user will be prompted once for a file name for
- each invocation of the saving commands."
- :group 'gnus-article-saving
- :type '(choice (item always)
- (item :tag "never" nil)
- (sexp :tag "once" :format "%t" :value t)))
-
- (defcustom gnus-saved-headers gnus-visible-headers
- "Headers to keep if `gnus-save-all-headers' is nil.
- If `gnus-save-all-headers' is non-nil, this variable will be ignored.
- If that variable is nil, however, all headers that match this regexp
- will be kept while the rest will be deleted before saving."
- :group 'gnus-article-saving
- :type '(repeat string))
-
- (defcustom gnus-default-article-saver 'gnus-summary-save-in-rmail
- "A function to save articles in your favourite format.
- The function must be interactively callable (in other words, it must
- be an Emacs command).
-
- Gnus provides the following functions:
-
- * gnus-summary-save-in-rmail (Rmail format)
- * gnus-summary-save-in-mail (Unix mail format)
- * gnus-summary-save-in-folder (MH folder)
- * gnus-summary-save-in-file (article format)
- * gnus-summary-save-in-vm (use VM's folder format)
- * gnus-summary-write-to-file (article format -- overwrite)."
- :group 'gnus-article-saving
- :type '(radio (function-item gnus-summary-save-in-rmail)
- (function-item gnus-summary-save-in-mail)
- (function-item gnus-summary-save-in-folder)
- (function-item gnus-summary-save-in-file)
- (function-item gnus-summary-save-in-vm)
- (function-item gnus-summary-write-to-file)))
-
- (defcustom gnus-rmail-save-name 'gnus-plain-save-name
- "A function generating a file name to save articles in Rmail format.
- The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
- :group 'gnus-article-saving
- :type 'function)
-
- (defcustom gnus-mail-save-name 'gnus-plain-save-name
- "A function generating a file name to save articles in Unix mail format.
- The function is called with NEWSGROUP, HEADERS, and optional LAST-FILE."
- :group 'gnus-article-saving
- :type 'function)
-
- (defcustom gnus-folder-save-name 'gnus-folder-save-name
- "A function generating a file name to save articles in MH folder.
- The function is called with NEWSGROUP, HEADERS, and optional LAST-FOLDER."
- :group 'gnus-article-saving
- :type 'function)
-
- (defcustom gnus-file-save-name 'gnus-numeric-save-name
- "A function generating a file name to save articles in article format.
- The function is called with NEWSGROUP, HEADERS, and optional
- LAST-FILE."
- :group 'gnus-article-saving
- :type 'function)
-
- (defcustom gnus-split-methods
- '((gnus-article-archive-name)
- (gnus-article-nndoc-name))
- "Variable used to suggest where articles are to be saved.
- For instance, if you would like to save articles related to Gnus in
- the file \"gnus-stuff\", and articles related to VM in \"vm-stuff\",
- you could set this variable to something like:
-
- '((\"^Subject:.*gnus\\|^Newsgroups:.*gnus\" \"gnus-stuff\")
- (\"^Subject:.*vm\\|^Xref:.*vm\" \"vm-stuff\"))
-
- This variable is an alist where the where the key is the match and the
- value is a list of possible files to save in if the match is non-nil.
-
- If the match is a string, it is used as a regexp match on the
- article. If the match is a symbol, that symbol will be funcalled
- from the buffer of the article to be saved with the newsgroup as the
- parameter. If it is a list, it will be evaled in the same buffer.
-
- If this form or function returns a string, this string will be used as
- a possible file name; and if it returns a non-nil list, that list will
- be used as possible file names."
- :group 'gnus-article-saving
- :type '(repeat (choice (list function)
- (cons regexp (repeat string))
- sexp)))
-
- (defcustom gnus-strict-mime t
- "*If nil, MIME-decode even if there is no Mime-Version header."
- :group 'gnus-article-mime
- :type 'boolean)
-
- (defcustom gnus-show-mime-method 'metamail-buffer
- "Function to process a MIME message.
- The function is called from the article buffer."
- :group 'gnus-article-mime
- :type 'function)
-
- (defcustom gnus-decode-encoded-word-method 'gnus-article-de-quoted-unreadable
- "*Function to decode MIME encoded words.
- The function is called from the article buffer."
- :group 'gnus-article-mime
- :type 'function)
-
- (defcustom gnus-page-delimiter "^\^L"
- "*Regexp describing what to use as article page delimiters.
- The default value is \"^\^L\", which is a form linefeed at the
- beginning of a line."
- :type 'regexp
- :group 'gnus-article-various)
-
- (defcustom gnus-article-mode-line-format "Gnus: %%b %S"
- "*The format specification for the article mode line.
- See `gnus-summary-mode-line-format' for a closer description."
- :type 'string
- :group 'gnus-article-various)
-
- (defcustom gnus-article-mode-hook nil
- "*A hook for Gnus article mode."
- :type 'hook
- :group 'gnus-article-various)
-
- (defcustom gnus-article-menu-hook nil
- "*Hook run after the creation of the article mode menu."
- :type 'hook
- :group 'gnus-article-various)
-
- (defcustom gnus-article-prepare-hook nil
- "*A hook called after an article has been prepared in the article buffer.
- If you want to run a special decoding program like nkf, use this hook."
- :type 'hook
- :group 'gnus-article-various)
-
- (defcustom gnus-article-hide-pgp-hook nil
- "*A hook called after successfully hiding a PGP signature."
- :type 'hook
- :group 'gnus-article-various)
-
- (defcustom gnus-article-button-face 'bold
- "Face used for highlighting buttons in the article buffer.
-
- An article button is a piece of text that you can activate by pressing
- `RET' or `mouse-2' above it."
- :type 'face
- :group 'gnus-article-buttons)
-
- (defcustom gnus-article-mouse-face 'highlight
- "Face used for mouse highlighting in the article buffer.
-
- Article buttons will be displayed in this face when the cursor is
- above them."
- :type 'face
- :group 'gnus-article-buttons)
-
- (defcustom gnus-signature-face 'gnus-signature-face
- "Face used for highlighting a signature in the article buffer.
- Obsolete; use the face `gnus-signature-face' for customizations instead."
- :type 'face
- :group 'gnus-article-highlight
- :group 'gnus-article-signature)
-
- (defface gnus-signature-face
- '((((type x))
- (:italic t)))
- "Face used for highlighting a signature in the article buffer."
- :group 'gnus-article-highlight
- :group 'gnus-article-signature)
-
- (defface gnus-header-from-face
- '((((class color)
- (background dark))
- (:foreground "spring green" :bold t))
- (((class color)
- (background light))
- (:foreground "red3" :bold t))
- (t
- (:bold t :italic t)))
- "Face used for displaying from headers."
- :group 'gnus-article-headers
- :group 'gnus-article-highlight)
-
- (defface gnus-header-subject-face
- '((((class color)
- (background dark))
- (:foreground "SeaGreen3" :bold t))
- (((class color)
- (background light))
- (:foreground "red4" :bold t))
- (t
- (:bold t :italic t)))
- "Face used for displaying subject headers."
- :group 'gnus-article-headers
- :group 'gnus-article-highlight)
-
- (defface gnus-header-newsgroups-face
- '((((class color)
- (background dark))
- (:foreground "yellow" :bold t :italic t))
- (((class color)
- (background light))
- (:foreground "MidnightBlue" :bold t :italic t))
- (t
- (:bold t :italic t)))
- "Face used for displaying newsgroups headers."
- :group 'gnus-article-headers
- :group 'gnus-article-highlight)
-
- (defface gnus-header-name-face
- '((((class color)
- (background dark))
- (:foreground "SeaGreen"))
- (((class color)
- (background light))
- (:foreground "maroon"))
- (t
- (:bold t)))
- "Face used for displaying header names."
- :group 'gnus-article-headers
- :group 'gnus-article-highlight)
-
- (defface gnus-header-content-face
- '((((class color)
- (background dark))
- (:foreground "forest green" :italic t))
- (((class color)
- (background light))
- (:foreground "indianred4" :italic t))
- (t
- (:italic t))) "Face used for displaying header content."
- :group 'gnus-article-headers
- :group 'gnus-article-highlight)
-
- (defcustom gnus-header-face-alist
- '(("From" nil gnus-header-from-face)
- ("Subject" nil gnus-header-subject-face)
- ("Newsgroups:.*," nil gnus-header-newsgroups-face)
- ("" gnus-header-name-face gnus-header-content-face))
- "Controls highlighting of article header.
-
- An alist of the form (HEADER NAME CONTENT).
-
- HEADER is a regular expression which should match the name of an
- header header and NAME and CONTENT are either face names or nil.
-
- The name of each header field will be displayed using the face
- specified by the first element in the list where HEADER match the
- header name and NAME is non-nil. Similarly, the content will be
- displayed by the first non-nil matching CONTENT face."
- :group 'gnus-article-headers
- :group 'gnus-article-highlight
- :type '(repeat (list (regexp :tag "Header")
- (choice :tag "Name"
- (item :tag "skip" nil)
- (face :value default))
- (choice :tag "Content"
- (item :tag "skip" nil)
- (face :value default)))))
-
- ;;; Internal variables
-
- (defvar gnus-article-mode-syntax-table
- (let ((table (copy-syntax-table text-mode-syntax-table)))
- (modify-syntax-entry ?- "w" table)
- (modify-syntax-entry ?> ")" table)
- (modify-syntax-entry ?< "(" table)
- table)
- "Syntax table used in article mode buffers.
- Initialized from `text-mode-syntax-table.")
-
- (defvar gnus-save-article-buffer nil)
-
- (defvar gnus-article-mode-line-format-alist
- (nconc '((?w (gnus-article-wash-status) ?s))
- gnus-summary-mode-line-format-alist))
-
- (defvar gnus-number-of-articles-to-be-saved nil)
-
- (defvar gnus-inhibit-hiding nil)
-
- (defsubst gnus-article-hide-text (b e props)
- "Set text PROPS on the B to E region, extending `intangible' 1 past B."
- (add-text-properties b e props)
- (when (memq 'intangible props)
- (put-text-property
- (max (1- b) (point-min))
- b 'intangible (cddr (memq 'intangible props)))))
-
- (defsubst gnus-article-unhide-text (b e)
- "Remove hidden text properties from region between B and E."
- (remove-text-properties b e gnus-hidden-properties)
- (when (memq 'intangible gnus-hidden-properties)
- (put-text-property (max (1- b) (point-min))
- b 'intangible nil)))
-
- (defun gnus-article-hide-text-type (b e type)
- "Hide text of TYPE between B and E."
- (gnus-article-hide-text
- b e (cons 'article-type (cons type gnus-hidden-properties))))
-
- (defun gnus-article-unhide-text-type (b e type)
- "Hide text of TYPE between B and E."
- (remove-text-properties
- b e (cons 'article-type (cons type gnus-hidden-properties)))
- (when (memq 'intangible gnus-hidden-properties)
- (put-text-property (max (1- b) (point-min))
- b 'intangible nil)))
-
- (defun gnus-article-hide-text-of-type (type)
- "Hide text of TYPE in the current buffer."
- (save-excursion
- (let ((b (point-min))
- (e (point-max)))
- (while (setq b (text-property-any b e 'article-type type))
- (add-text-properties b (incf b) gnus-hidden-properties)))))
-
- (defun gnus-article-delete-text-of-type (type)
- "Delete text of TYPE in the current buffer."
- (save-excursion
- (let ((b (point-min)))
- (while (setq b (text-property-any b (point-max) 'article-type type))
- (delete-region
- b (or (text-property-not-all b (point-max) 'article-type type)
- (point-max)))))))
-
- (defun gnus-article-delete-invisible-text ()
- "Delete all invisible text in the current buffer."
- (save-excursion
- (let ((b (point-min)))
- (while (setq b (text-property-any b (point-max) 'invisible t))
- (delete-region
- b (or (text-property-not-all b (point-max) 'invisible t)
- (point-max)))))))
-
- (defun gnus-article-text-type-exists-p (type)
- "Say whether any text of type TYPE exists in the buffer."
- (text-property-any (point-min) (point-max) 'article-type type))
-
- (defsubst gnus-article-header-rank ()
- "Give the rank of the string HEADER as given by `gnus-sorted-header-list'."
- (let ((list gnus-sorted-header-list)
- (i 0))
- (while list
- (when (looking-at (car list))
- (setq list nil))
- (setq list (cdr list))
- (incf i))
- i))
-
- (defun article-hide-headers (&optional arg delete)
- "Toggle whether to hide unwanted headers and possibly sort them as well.
- If given a negative prefix, always show; if given a positive prefix,
- always hide."
- (interactive (gnus-article-hidden-arg))
- (if (gnus-article-check-hidden-text 'headers arg)
- ;; Show boring headers as well.
- (gnus-article-show-hidden-text 'boring-headers)
- ;; This function might be inhibited.
- (unless gnus-inhibit-hiding
- (save-excursion
- (save-restriction
- (let ((buffer-read-only nil)
- (props (nconc (list 'article-type 'headers)
- gnus-hidden-properties))
- (max (1+ (length gnus-sorted-header-list)))
- (ignored (when (not gnus-visible-headers)
- (cond ((stringp gnus-ignored-headers)
- gnus-ignored-headers)
- ((listp gnus-ignored-headers)
- (mapconcat 'identity gnus-ignored-headers
- "\\|")))))
- (visible
- (cond ((stringp gnus-visible-headers)
- gnus-visible-headers)
- ((and gnus-visible-headers
- (listp gnus-visible-headers))
- (mapconcat 'identity gnus-visible-headers "\\|"))))
- (inhibit-point-motion-hooks t)
- want-list beg)
- ;; First we narrow to just the headers.
- (widen)
- (goto-char (point-min))
- ;; Hide any "From " lines at the beginning of (mail) articles.
- (while (looking-at "From ")
- (forward-line 1))
- (unless (bobp)
- (if delete
- (delete-region (point-min) (point))
- (gnus-article-hide-text (point-min) (point) props)))
- ;; Then treat the rest of the header lines.
- (narrow-to-region
- (point)
- (if (search-forward "\n\n" nil t) ; if there's a body
- (progn (forward-line -1) (point))
- (point-max)))
- ;; Then we use the two regular expressions
- ;; `gnus-ignored-headers' and `gnus-visible-headers' to
- ;; select which header lines is to remain visible in the
- ;; article buffer.
- (goto-char (point-min))
- (while (re-search-forward "^[^ \t]*:" nil t)
- (beginning-of-line)
- ;; Mark the rank of the header.
- (put-text-property
- (point) (1+ (point)) 'message-rank
- (if (or (and visible (looking-at visible))
- (and ignored
- (not (looking-at ignored))))
- (gnus-article-header-rank)
- (+ 2 max)))
- (forward-line 1))
- (message-sort-headers-1)
- (when (setq beg (text-property-any
- (point-min) (point-max) 'message-rank (+ 2 max)))
- ;; We make the unwanted headers invisible.
- (if delete
- (delete-region beg (point-max))
- ;; Suggested by Sudish Joseph <joseph@cis.ohio-state.edu>.
- (gnus-article-hide-text-type beg (point-max) 'headers))
- ;; Work around XEmacs lossage.
- (put-text-property (point-min) beg 'invisible nil))))))))
-
- (defun article-hide-boring-headers (&optional arg)
- "Toggle hiding of headers that aren't very interesting.
- If given a negative prefix, always show; if given a positive prefix,
- always hide."
- (interactive (gnus-article-hidden-arg))
- (when (and (not (gnus-article-check-hidden-text 'boring-headers arg))
- (not gnus-show-all-headers))
- (save-excursion
- (save-restriction
- (let ((buffer-read-only nil)
- (list gnus-boring-article-headers)
- (inhibit-point-motion-hooks t)
- elem)
- (nnheader-narrow-to-headers)
- (while list
- (setq elem (pop list))
- (goto-char (point-min))
- (cond
- ;; Hide empty headers.
- ((eq elem 'empty)
- (while (re-search-forward "^[^:]+:[ \t]*\n[^ \t]" nil t)
- (forward-line -1)
- (gnus-article-hide-text-type
- (progn (beginning-of-line) (point))
- (progn
- (end-of-line)
- (if (re-search-forward "^[^ \t]" nil t)
- (match-beginning 0)
- (point-max)))
- 'boring-headers)))
- ;; Hide boring Newsgroups header.
- ((eq elem 'newsgroups)
- (when (equal (gnus-fetch-field "newsgroups")
- (gnus-group-real-name
- (if (boundp 'gnus-newsgroup-name)
- gnus-newsgroup-name
- "")))
- (gnus-article-hide-header "newsgroups")))
- ((eq elem 'followup-to)
- (when (equal (message-fetch-field "followup-to")
- (message-fetch-field "newsgroups"))
- (gnus-article-hide-header "followup-to")))
- ((eq elem 'reply-to)
- (let ((from (message-fetch-field "from"))
- (reply-to (message-fetch-field "reply-to")))
- (when (and
- from reply-to
- (ignore-errors
- (equal
- (nth 1 (mail-extract-address-components from))
- (nth 1 (mail-extract-address-components reply-to)))))
- (gnus-article-hide-header "reply-to"))))
- ((eq elem 'date)
- (let ((date (message-fetch-field "date")))
- (when (and date
- (< (gnus-days-between (current-time-string) date)
- 4))
- (gnus-article-hide-header "date")))))))))))
-
- (defun gnus-article-hide-header (header)
- (save-excursion
- (goto-char (point-min))
- (when (re-search-forward (concat "^" header ":") nil t)
- (gnus-article-hide-text-type
- (progn (beginning-of-line) (point))
- (progn
- (end-of-line)
- (if (re-search-forward "^[^ \t]" nil t)
- (match-beginning 0)
- (point-max)))
- 'boring-headers))))
-
- ;; Written by Per Abrahamsen <amanda@iesd.auc.dk>.
- (defun article-treat-overstrike ()
- "Translate overstrikes into bold text."
- (interactive)
- (save-excursion
- (goto-char (point-min))
- (when (search-forward "\n\n" nil t)
- (let ((buffer-read-only nil))
- (while (search-forward "\b" nil t)
- (let ((next (following-char))
- (previous (char-after (- (point) 2))))
- ;; We do the boldification/underlining by hiding the
- ;; overstrikes and putting the proper text property
- ;; on the letters.
- (cond
- ((eq next previous)
- (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
- (put-text-property (point) (1+ (point)) 'face 'bold))
- ((eq next ?_)
- (gnus-article-hide-text-type
- (1- (point)) (1+ (point)) 'overstrike)
- (put-text-property
- (- (point) 2) (1- (point)) 'face 'underline))
- ((eq previous ?_)
- (gnus-article-hide-text-type (- (point) 2) (point) 'overstrike)
- (put-text-property
- (point) (1+ (point)) 'face 'underline)))))))))
-
- (defun article-fill ()
- "Format too long lines."
- (interactive)
- (save-excursion
- (let ((buffer-read-only nil))
- (widen)
- (goto-char (point-min))
- (search-forward "\n\n" nil t)
- (end-of-line 1)
- (let ((paragraph-start "^[>|#:<;* ]*[ \t]*$")
- (adaptive-fill-regexp "[ \t]*\\([|#:<;>*]+ *\\)?")
- (adaptive-fill-mode t))
- (while (not (eobp))
- (and (>= (current-column) (min fill-column (window-width)))
- (/= (preceding-char) ?:)
- (fill-paragraph nil))
- (end-of-line 2))))))
-
- (defun article-remove-cr ()
- "Remove carriage returns from an article."
- (interactive)
- (save-excursion
- (let ((buffer-read-only nil))
- (goto-char (point-min))
- (while (search-forward "\r" nil t)
- (replace-match "" t t)))))
-
- (defun article-remove-trailing-blank-lines ()
- "Remove all trailing blank lines from the article."
- (interactive)
- (save-excursion
- (let ((buffer-read-only nil))
- (goto-char (point-max))
- (delete-region
- (point)
- (progn
- (while (and (not (bobp))
- (looking-at "^[ \t]*$"))
- (forward-line -1))
- (forward-line 1)
- (point))))))
-
- (defun article-display-x-face (&optional force)
- "Look for an X-Face header and display it if present."
- (interactive (list 'force))
- (save-excursion
- ;; Delete the old process, if any.
- (when (process-status "article-x-face")
- (delete-process "article-x-face"))
- (let ((inhibit-point-motion-hooks t)
- (case-fold-search nil)
- from)
- (save-restriction
- (nnheader-narrow-to-headers)
- (setq from (message-fetch-field "from"))
- (goto-char (point-min))
- (while (and gnus-article-x-face-command
- (or force
- ;; Check whether this face is censored.
- (not gnus-article-x-face-too-ugly)
- (and gnus-article-x-face-too-ugly from
- (not (string-match gnus-article-x-face-too-ugly
- from))))
- ;; Has to be present.
- (re-search-forward "^X-Face: " nil t))
- ;; We now have the area of the buffer where the X-Face is stored.
- (save-excursion
- (let ((beg (point))
- (end (1- (re-search-forward "^\\($\\|[^ \t]\\)" nil t))))
- ;; We display the face.
- (if (symbolp gnus-article-x-face-command)
- ;; The command is a lisp function, so we call it.
- (if (gnus-functionp gnus-article-x-face-command)
- (funcall gnus-article-x-face-command beg end)
- (error "%s is not a function" gnus-article-x-face-command))
- ;; The command is a string, so we interpret the command
- ;; as a, well, command, and fork it off.
- (let ((process-connection-type nil))
- (process-kill-without-query
- (start-process
- "article-x-face" nil shell-file-name shell-command-switch
- gnus-article-x-face-command))
- (process-send-region "article-x-face" beg end)
- (process-send-eof "article-x-face"))))))))))
-
- (defun gnus-hack-decode-rfc1522 ()
- "Emergency hack function for avoiding problems when decoding."
- (let ((buffer-read-only nil))
- (goto-char (point-min))
- ;; Remove encoded TABs.
- (while (search-forward "=09" nil t)
- (replace-match " " t t))
- ;; Remove encoded newlines.
- (goto-char (point-min))
- (while (search-forward "=10" nil t)
- (replace-match " " t t))))
-
- (defalias 'gnus-decode-rfc1522 'article-decode-rfc1522)
- (defalias 'gnus-article-decode-rfc1522 'article-decode-rfc1522)
- (defun article-decode-rfc1522 ()
- "Hack to remove QP encoding from headers."
- (let ((case-fold-search t)
- (inhibit-point-motion-hooks t)
- (buffer-read-only nil)
- string)
- (save-restriction
- (narrow-to-region
- (goto-char (point-min))
- (or (search-forward "\n\n" nil t) (point-max)))
- (goto-char (point-min))
- (while (re-search-forward
- "=\\?iso-8859-1\\?q\\?\\([^?\t\n]*\\)\\?=" nil t)
- (setq string (match-string 1))
- (save-restriction
- (narrow-to-region (match-beginning 0) (match-end 0))
- (delete-region (point-min) (point-max))
- (insert string)
- (article-mime-decode-quoted-printable
- (goto-char (point-min)) (point-max))
- (subst-char-in-region (point-min) (point-max) ?_ ? )
- (goto-char (point-max)))
- (goto-char (point-min))))))
-
- (defun article-de-quoted-unreadable (&optional force)
- "Do a naive translation of a quoted-printable-encoded article.
- This is in no way, shape or form meant as a replacement for real MIME
- processing, but is simply a stop-gap measure until MIME support is
- written.
- If FORCE, decode the article whether it is marked as quoted-printable
- or not."
- (interactive (list 'force))
- (save-excursion
- (let ((case-fold-search t)
- (buffer-read-only nil)
- (type (gnus-fetch-field "content-transfer-encoding")))
- (gnus-article-decode-rfc1522)
- (when (or force
- (and type (string-match "quoted-printable" (downcase type))))
- (goto-char (point-min))
- (search-forward "\n\n" nil 'move)
- (article-mime-decode-quoted-printable (point) (point-max))))))
-
- (defun article-mime-decode-quoted-printable-buffer ()
- "Decode Quoted-Printable in the current buffer."
- (article-mime-decode-quoted-printable (point-min) (point-max)))
-
- (defun article-mime-decode-quoted-printable (from to)
- "Decode Quoted-Printable in the region between FROM and TO."
- (interactive "r")
- (goto-char from)
- (while (search-forward "=" to t)
- (cond ((eq (following-char) ?\n)
- (delete-char -1)
- (delete-char 1))
- ((looking-at "[0-9A-F][0-9A-F]")
- (subst-char-in-region
- (1- (point)) (point) ?=
- (hexl-hex-string-to-integer
- (buffer-substring (point) (+ 2 (point)))))
- (delete-char 2))
- ((looking-at "=")
- (delete-char 1))
- ((gnus-message 3 "Malformed MIME quoted-printable message")))))
-
- (defun article-hide-pgp (&optional arg)
- "Toggle hiding of any PGP headers and signatures in the current article.
- If given a negative prefix, always show; if given a positive prefix,
- always hide."
- (interactive (gnus-article-hidden-arg))
- (unless (gnus-article-check-hidden-text 'pgp arg)
- (save-excursion
- (let ((inhibit-point-motion-hooks t)
- buffer-read-only beg end)
- (widen)
- (goto-char (point-min))
- ;; Hide the "header".
- (when (search-forward "\n-----BEGIN PGP SIGNED MESSAGE-----\n" nil t)
- (gnus-article-hide-text-type (1+ (match-beginning 0))
- (match-end 0) 'pgp)
- (setq beg (point))
- ;; Hide the actual signature.
- (and (search-forward "\n-----BEGIN PGP SIGNATURE-----\n" nil t)
- (setq end (1+ (match-beginning 0)))
- (gnus-article-hide-text-type
- end
- (if (search-forward "\n-----END PGP SIGNATURE-----\n" nil t)
- (match-end 0)
- ;; Perhaps we shouldn't hide to the end of the buffer
- ;; if there is no end to the signature?
- (point-max))
- 'pgp))
- ;; Hide "- " PGP quotation markers.
- (when (and beg end)
- (narrow-to-region beg end)
- (goto-char (point-min))
- (while (re-search-forward "^- " nil t)
- (gnus-article-hide-text-type
- (match-beginning 0) (match-end 0) 'pgp))
- (widen))
- (run-hooks 'gnus-article-hide-pgp-hook))))))
-
- (defun article-hide-pem (&optional arg)
- "Toggle hiding of any PEM headers and signatures in the current article.
- If given a negative prefix, always show; if given a positive prefix,
- always hide."
- (interactive (gnus-article-hidden-arg))
- (unless (gnus-article-check-hidden-text 'pem arg)
- (save-excursion
- (let (buffer-read-only end)
- (widen)
- (goto-char (point-min))
- ;; hide the horrendously ugly "header".
- (and (search-forward "\n-----BEGIN PRIVACY-ENHANCED MESSAGE-----\n"
- nil
- t)
- (setq end (1+ (match-beginning 0)))
- (gnus-article-hide-text-type
- end
- (if (search-forward "\n\n" nil t)
- (match-end 0)
- (point-max))
- 'pem))
- ;; hide the trailer as well
- (and (search-forward "\n-----END PRIVACY-ENHANCED MESSAGE-----\n"
- nil
- t)
- (gnus-article-hide-text-type
- (match-beginning 0) (match-end 0) 'pem))))))
-
- (defun article-hide-signature (&optional arg)
- "Hide the signature in the current article.
- If given a negative prefix, always show; if given a positive prefix,
- always hide."
- (interactive (gnus-article-hidden-arg))
- (unless (gnus-article-check-hidden-text 'signature arg)
- (save-excursion
- (save-restriction
- (let ((buffer-read-only nil))
- (when (gnus-article-narrow-to-signature)
- (gnus-article-hide-text-type
- (point-min) (point-max) 'signature)))))))
-
- (defun article-strip-leading-blank-lines ()
- "Remove all blank lines from the beginning of the article."
- (interactive)
- (save-excursion
- (let ((inhibit-point-motion-hooks t)
- buffer-read-only)
- (goto-char (point-min))
- (when (search-forward "\n\n" nil t)
- (while (and (not (eobp))
- (looking-at "[ \t]*$"))
- (gnus-delete-line))))))
-
- (defun article-strip-multiple-blank-lines ()
- "Replace consecutive blank lines with one empty line."
- (interactive)
- (save-excursion
- (let ((inhibit-point-motion-hooks t)
- buffer-read-only)
- ;; First make all blank lines empty.
- (goto-char (point-min))
- (search-forward "\n\n" nil t)
- (while (re-search-forward "^[ \t]+$" nil t)
- (replace-match "" nil t))
- ;; Then replace multiple empty lines with a single empty line.
- (goto-char (point-min))
- (search-forward "\n\n" nil t)
- (while (re-search-forward "\n\n\n+" nil t)
- (replace-match "\n\n" t t)))))
-
- (defun article-strip-leading-space ()
- "Remove all white space from the beginning of the lines in the article."
- (interactive)
- (save-excursion
- (let ((inhibit-point-motion-hooks t)
- buffer-read-only)
- (goto-char (point-min))
- (search-forward "\n\n" nil t)
- (while (re-search-forward "^[ \t]+" nil t)
- (replace-match "" t t)))))
-
- (defun article-strip-blank-lines ()
- "Strip leading, trailing and multiple blank lines."
- (interactive)
- (article-strip-leading-blank-lines)
- (article-remove-trailing-blank-lines)
- (article-strip-multiple-blank-lines))
-
- (defvar mime::preview/content-list)
- (defvar mime::preview-content-info/point-min)
- (defun gnus-article-narrow-to-signature ()
- "Narrow to the signature; return t if a signature is found, else nil."
- (widen)
- (when (and (boundp 'mime::preview/content-list)
- mime::preview/content-list)
- ;; We have a MIMEish article, so we use the MIME data to narrow.
- (let ((pcinfo (car (last mime::preview/content-list))))
- (ignore-errors
- (narrow-to-region
- (funcall (intern "mime::preview-content-info/point-min") pcinfo)
- (point-max)))))
-
- (when (gnus-article-search-signature)
- (forward-line 1)
- ;; Check whether we have some limits to what we consider
- ;; to be a signature.
- (let ((limits (if (listp gnus-signature-limit) gnus-signature-limit
- (list gnus-signature-limit)))
- limit limited)
- (while (setq limit (pop limits))
- (if (or (and (integerp limit)
- (< (- (point-max) (point)) limit))
- (and (floatp limit)
- (< (count-lines (point) (point-max)) limit))
- (and (gnus-functionp limit)
- (funcall limit))
- (and (stringp limit)
- (not (re-search-forward limit nil t))))
- () ; This limit did not succeed.
- (setq limited t
- limits nil)))
- (unless limited
- (narrow-to-region (point) (point-max))
- t))))
-
- (defun gnus-article-search-signature ()
- "Search the current buffer for the signature separator.
- Put point at the beginning of the signature separator."
- (let ((cur (point)))
- (goto-char (point-max))
- (if (if (stringp gnus-signature-separator)
- (re-search-backward gnus-signature-separator nil t)
- (let ((seps gnus-signature-separator))
- (while (and seps
- (not (re-search-backward (car seps) nil t)))
- (pop seps))
- seps))
- t
- (goto-char cur)
- nil)))
-
- (eval-and-compile
- (autoload 'w3-display "w3-parse")
- (autoload 'w3-do-setup "w3" "" t))
-
- (defun gnus-article-treat-html ()
- "Render HTML."
- (interactive)
- (let ((cbuf (current-buffer)))
- (set-buffer gnus-article-buffer)
- (let (buf buffer-read-only b e)
- (w3-do-setup)
- (goto-char (point-min))
- (narrow-to-region
- (if (search-forward "\n\n" nil t)
- (setq b (point))
- (point-max))
- (setq e (point-max)))
- (nnheader-temp-write nil
- (insert-buffer-substring gnus-article-buffer b e)
- (require 'url)
- (save-window-excursion
- (w3-region (point-min) (point-max))
- (setq buf (buffer-substring-no-properties (point-min) (point-max)))))
- (when buf
- (delete-region (point-min) (point-max))
- (insert buf))
- (widen)
- (goto-char (point-min))
- (set-window-start (get-buffer-window (current-buffer)) (point-min))
- (set-buffer cbuf))))
-
- (defun gnus-article-hidden-arg ()
- "Return the current prefix arg as a number, or 0 if no prefix."
- (list (if current-prefix-arg
- (prefix-numeric-value current-prefix-arg)
- 0)))
-
- (defun gnus-article-check-hidden-text (type arg)
- "Return nil if hiding is necessary.
- Arg can be nil or a number. Nil and positive means hide, negative
- means show, 0 means toggle."
- (save-excursion
- (save-restriction
- (widen)
- (let ((hide (gnus-article-hidden-text-p type)))
- (cond
- ((or (null arg)
- (> arg 0))
- nil)
- ((< arg 0)
- (gnus-article-show-hidden-text type))
- (t
- (if (eq hide 'hidden)
- (gnus-article-show-hidden-text type)
- nil)))))))
-
- (defun gnus-article-hidden-text-p (type)
- "Say whether the current buffer contains hidden text of type TYPE."
- (let ((start (point-min))
- (pos (text-property-any (point-min) (point-max) 'article-type type)))
- (while (and pos
- (not (get-text-property pos 'invisible)))
- (setq pos
- (text-property-any (1+ pos) (point-max) 'article-type type)))
- (if pos
- 'hidden
- 'shown)))
-
- (defun gnus-article-show-hidden-text (type &optional hide)
- "Show all hidden text of type TYPE.
- If HIDE, hide the text instead."
- (save-excursion
- (let ((buffer-read-only nil)
- (inhibit-point-motion-hooks t)
- (end (point-min))
- beg)
- (while (setq beg (text-property-any end (point-max) 'article-type type))
- (goto-char beg)
- (setq end (or
- (text-property-not-all beg (point-max) 'article-type type)
- (point-max)))
- (if hide
- (gnus-article-hide-text beg end gnus-hidden-properties)
- (gnus-article-unhide-text beg end))
- (goto-char end))
- t)))
-
- (defconst article-time-units
- `((year . ,(* 365.25 24 60 60))
- (week . ,(* 7 24 60 60))
- (day . ,(* 24 60 60))
- (hour . ,(* 60 60))
- (minute . 60)
- (second . 1))
- "Mapping from time units to seconds.")
-
- (defun article-date-ut (&optional type highlight header)
- "Convert DATE date to universal time in the current article.
- If TYPE is `local', convert to local time; if it is `lapsed', output
- how much time has lapsed since DATE."
- (interactive (list 'ut t))
- (let* ((header (or header
- (mail-header-date gnus-current-headers)
- (message-fetch-field "date")
- ""))
- (date (if (vectorp header) (mail-header-date header)
- header))
- (date-regexp "^Date:[ \t]\\|^X-Sent:[ \t]")
- (inhibit-point-motion-hooks t)
- bface eface)
- (when (and date (not (string= date "")))
- (save-excursion
- (save-restriction
- (nnheader-narrow-to-headers)
- (let ((buffer-read-only nil))
- ;; Delete any old Date headers.
- (if (re-search-forward date-regexp nil t)
- (progn
- (setq bface (get-text-property (gnus-point-at-bol) 'face)
- eface (get-text-property (1- (gnus-point-at-eol))
- 'face))
- (message-remove-header date-regexp t)
- (beginning-of-line))
- (goto-char (point-max)))
- (insert (article-make-date-line date type))
- ;; Do highlighting.
- (forward-line -1)
- (when (looking-at "\\([^:]+\\): *\\(.*\\)$")
- (put-text-property (match-beginning 1) (match-end 1)
- 'face bface)
- (put-text-property (match-beginning 2) (match-end 2)
- 'face eface))))))))
-
- (defun article-make-date-line (date type)
- "Return a DATE line of TYPE."
- (cond
- ;; Convert to the local timezone. We have to slap a
- ;; `condition-case' round the calls to the timezone
- ;; functions since they aren't particularly resistant to
- ;; buggy dates.
- ((eq type 'local)
- (concat "Date: " (condition-case ()
- (timezone-make-date-arpa-standard date)
- (error date))
- "\n"))
- ;; Convert to Universal Time.
- ((eq type 'ut)
- (concat "Date: "
- (condition-case ()
- (timezone-make-date-arpa-standard date nil "UT")
- (error date))
- "\n"))
- ;; Get the original date from the article.
- ((eq type 'original)
- (concat "Date: " date "\n"))
- ;; Let the user define the format.
- ((eq type 'user)
- (concat
- "Date: "
- (format-time-string gnus-article-time-format
- (ignore-errors
- (gnus-encode-date
- (timezone-make-date-arpa-standard
- date nil "UT"))))
- "\n"))
- ;; Do an X-Sent lapsed format.
- ((eq type 'lapsed)
- ;; If the date is seriously mangled, the timezone functions are
- ;; liable to bug out, so we ignore all errors.
- (let* ((now (current-time))
- (real-time
- (ignore-errors
- (gnus-time-minus
- (gnus-encode-date
- (timezone-make-date-arpa-standard
- (current-time-string now)
- (current-time-zone now) "UT"))
- (gnus-encode-date
- (timezone-make-date-arpa-standard
- date nil "UT")))))
- (real-sec (and real-time
- (+ (* (float (car real-time)) 65536)
- (cadr real-time))))
- (sec (and real-time (abs real-sec)))
- num prev)
- (cond
- ((null real-time)
- "X-Sent: Unknown\n")
- ((zerop sec)
- "X-Sent: Now\n")
- (t
- (concat
- "X-Sent: "
- ;; This is a bit convoluted, but basically we go
- ;; through the time units for years, weeks, etc,
- ;; and divide things to see whether that results
- ;; in positive answers.
- (mapconcat
- (lambda (unit)
- (if (zerop (setq num (ffloor (/ sec (cdr unit)))))
- ;; The (remaining) seconds are too few to
- ;; be divided into this time unit.
- ""
- ;; It's big enough, so we output it.
- (setq sec (- sec (* num (cdr unit))))
- (prog1
- (concat (if prev ", " "") (int-to-string
- (floor num))
- " " (symbol-name (car unit))
- (if (> num 1) "s" ""))
- (setq prev t))))
- article-time-units "")
- ;; If dates are odd, then it might appear like the
- ;; article was sent in the future.
- (if (> real-sec 0)
- " ago\n"
- " in the future\n"))))))
- (t
- (error "Unknown conversion type: %s" type))))
-
- (defun article-date-local (&optional highlight)
- "Convert the current article date to the local timezone."
- (interactive (list t))
- (article-date-ut 'local highlight))
-
- (defun article-date-original (&optional highlight)
- "Convert the current article date to what it was originally.
- This is only useful if you have used some other date conversion
- function and want to see what the date was before converting."
- (interactive (list t))
- (article-date-ut 'original highlight))
-
- (defun article-date-lapsed (&optional highlight)
- "Convert the current article date to time lapsed since it was sent."
- (interactive (list t))
- (article-date-ut 'lapsed highlight))
-
- (defun article-date-user (&optional highlight)
- "Convert the current article date to the user-defined format.
- This format is defined by the `gnus-article-time-format' variable."
- (interactive (list t))
- (article-date-ut 'user highlight))
-
- (defun article-show-all ()
- "Show all hidden text in the article buffer."
- (interactive)
- (save-excursion
- (let ((buffer-read-only nil))
- (gnus-article-unhide-text (point-min) (point-max)))))
-
- (defun article-emphasize (&optional arg)
- "Emphasize text according to `gnus-emphasis-alist'."
- (interactive (gnus-article-hidden-arg))
- (unless (gnus-article-check-hidden-text 'emphasis arg)
- (save-excursion
- (let ((alist gnus-emphasis-alist)
- (buffer-read-only nil)
- (props (append '(article-type emphasis)
- gnus-hidden-properties))
- regexp elem beg invisible visible face)
- (goto-char (point-min))
- (search-forward "\n\n" nil t)
- (setq beg (point))
- (while (setq elem (pop alist))
- (goto-char beg)
- (setq regexp (car elem)
- invisible (nth 1 elem)
- visible (nth 2 elem)
- face (nth 3 elem))
- (while (re-search-forward regexp nil t)
- (when (and (match-beginning visible) (match-beginning invisible))
- (gnus-article-hide-text
- (match-beginning invisible) (match-end invisible) props)
- (gnus-article-unhide-text-type
- (match-beginning visible) (match-end visible) 'emphasis)
- (gnus-put-text-property-excluding-newlines
- (match-beginning visible) (match-end visible) 'face face)
- (goto-char (match-end invisible)))))))))
-
- (defvar gnus-summary-article-menu)
- (defvar gnus-summary-post-menu)
-
- ;;; Saving functions.
-
- (defun gnus-article-save (save-buffer file &optional num)
- "Save the currently selected article."
- (unless gnus-save-all-headers
- ;; Remove headers according to `gnus-saved-headers'.
- (let ((gnus-visible-headers
- (or gnus-saved-headers gnus-visible-headers))
- (gnus-article-buffer save-buffer))
- (gnus-article-hide-headers 1 t)))
- (save-window-excursion
- (if (not gnus-default-article-saver)
- (error "No default saver is defined")
- ;; !!! Magic! The saving functions all save
- ;; `gnus-original-article-buffer' (or so they think), but we
- ;; bind that variable to our save-buffer.
- (set-buffer gnus-article-buffer)
- (let* ((gnus-save-article-buffer save-buffer)
- (filename
- (cond
- ((not gnus-prompt-before-saving) 'default)
- ((eq gnus-prompt-before-saving 'always) nil)
- (t file)))
- (gnus-number-of-articles-to-be-saved
- (when (eq gnus-prompt-before-saving t)
- num))) ; Magic
- (set-buffer gnus-summary-buffer)
- (funcall gnus-default-article-saver filename)))))
-
- (defun gnus-read-save-file-name (prompt &optional filename
- function group headers variable)
- (let ((default-name
- (funcall function group headers (symbol-value variable)))
- result)
- (setq
- result
- (cond
- ((eq filename 'default)
- default-name)
- ((eq filename t)
- default-name)
- (filename filename)
- (t
- (let* ((split-name (gnus-get-split-value gnus-split-methods))
- (prompt
- (format prompt
- (if (and gnus-number-of-articles-to-be-saved
- (> gnus-number-of-articles-to-be-saved 1))
- (format "these %d articles"
- gnus-number-of-articles-to-be-saved)
- "this article")))
- (file
- ;; Let the split methods have their say.
- (cond
- ;; No split name was found.
- ((null split-name)
- (read-file-name
- (concat prompt " (default "
- (file-name-nondirectory default-name) ") ")
- (file-name-directory default-name)
- default-name))
- ;; A single group name is returned.
- ((stringp split-name)
- (setq default-name
- (funcall function split-name headers
- (symbol-value variable)))
- (read-file-name
- (concat prompt " (default "
- (file-name-nondirectory default-name) ") ")
- (file-name-directory default-name)
- default-name))
- ;; A single split name was found
- ((= 1 (length split-name))
- (let* ((name (expand-file-name
- (car split-name) gnus-article-save-directory))
- (dir (cond ((file-directory-p name)
- (file-name-as-directory name))
- ((file-exists-p name) name)
- (t gnus-article-save-directory))))
- (read-file-name
- (concat prompt " (default " name ") ")
- dir name)))
- ;; A list of splits was found.
- (t
- (setq split-name (nreverse split-name))
- (let (result)
- (let ((file-name-history
- (nconc split-name file-name-history)))
- (setq result
- (expand-file-name
- (read-file-name
- (concat prompt " (`M-p' for defaults) ")
- gnus-article-save-directory
- (car split-name))
- gnus-article-save-directory)))
- (car (push result file-name-history)))))))
- ;; Create the directory.
- (gnus-make-directory (file-name-directory file))
- ;; If we have read a directory, we append the default file name.
- (when (file-directory-p file)
- (setq file (concat (file-name-as-directory file)
- (file-name-nondirectory default-name))))
- ;; Possibly translate some characters.
- (nnheader-translate-file-chars file)))))
- (gnus-make-directory (file-name-directory result))
- (set variable result)))
-
- (defun gnus-article-archive-name (group)
- "Return the first instance of an \"Archive-name\" in the current buffer."
- (let ((case-fold-search t))
- (when (re-search-forward "archive-name: *\\([^ \n\t]+\\)[ \t]*$" nil t)
- (nnheader-concat gnus-article-save-directory
- (match-string 1)))))
-
- (defun gnus-article-nndoc-name (group)
- "If GROUP is an nndoc group, return the name of the parent group."
- (when (eq (car (gnus-find-method-for-group group)) 'nndoc)
- (gnus-group-get-parameter group 'save-article-group)))
-
- (defun gnus-summary-save-in-rmail (&optional filename)
- "Append this article to Rmail file.
- Optional argument FILENAME specifies file name.
- Directory to save to is default to `gnus-article-save-directory'."
- (interactive)
- (gnus-set-global-variables)
- (setq filename (gnus-read-save-file-name
- "Save %s in rmail file:" filename
- gnus-rmail-save-name gnus-newsgroup-name
- gnus-current-headers 'gnus-newsgroup-last-rmail))
- (gnus-eval-in-buffer-window gnus-save-article-buffer
- (save-excursion
- (save-restriction
- (widen)
- (gnus-output-to-rmail filename)))))
-
- (defun gnus-summary-save-in-mail (&optional filename)
- "Append this article to Unix mail file.
- Optional argument FILENAME specifies file name.
- Directory to save to is default to `gnus-article-save-directory'."
- (interactive)
- (gnus-set-global-variables)
- (setq filename (gnus-read-save-file-name
- "Save %s in Unix mail file:" filename
- gnus-mail-save-name gnus-newsgroup-name
- gnus-current-headers 'gnus-newsgroup-last-mail))
- (gnus-eval-in-buffer-window gnus-save-article-buffer
- (save-excursion
- (save-restriction
- (widen)
- (if (and (file-readable-p filename)
- (mail-file-babyl-p filename))
- (gnus-output-to-rmail filename t)
- (gnus-output-to-mail filename))))))
-
- (defun gnus-summary-save-in-file (&optional filename overwrite)
- "Append this article to file.
- Optional argument FILENAME specifies file name.
- Directory to save to is default to `gnus-article-save-directory'."
- (interactive)
- (gnus-set-global-variables)
- (setq filename (gnus-read-save-file-name
- "Save %s in file:" filename
- gnus-file-save-name gnus-newsgroup-name
- gnus-current-headers 'gnus-newsgroup-last-file))
- (gnus-eval-in-buffer-window gnus-save-article-buffer
- (save-excursion
- (save-restriction
- (widen)
- (when (and overwrite
- (file-exists-p filename))
- (delete-file filename))
- (gnus-output-to-file filename)))))
-
- (defun gnus-summary-write-to-file (&optional filename)
- "Write this article to a file.
- Optional argument FILENAME specifies file name.
- The directory to save in defaults to `gnus-article-save-directory'."
- (interactive)
- (gnus-summary-save-in-file nil t))
-
- (defun gnus-summary-save-body-in-file (&optional filename)
- "Append this article body to a file.
- Optional argument FILENAME specifies file name.
- The directory to save in defaults to `gnus-article-save-directory'."
- (interactive)
- (gnus-set-global-variables)
- (setq filename (gnus-read-save-file-name
- "Save %s body in file:" filename
- gnus-file-save-name gnus-newsgroup-name
- gnus-current-headers 'gnus-newsgroup-last-file))
- (gnus-eval-in-buffer-window gnus-save-article-buffer
- (save-excursion
- (save-restriction
- (widen)
- (goto-char (point-min))
- (when (search-forward "\n\n" nil t)
- (narrow-to-region (point) (point-max)))
- (gnus-output-to-file filename)))))
-
- (defun gnus-summary-save-in-pipe (&optional command)
- "Pipe this article to subprocess."
- (interactive)
- (gnus-set-global-variables)
- (setq command
- (cond ((eq command 'default)
- gnus-last-shell-command)
- (command command)
- (t (read-string
- (format
- "Shell command on %s: "
- (if (and gnus-number-of-articles-to-be-saved
- (> gnus-number-of-articles-to-be-saved 1))
- (format "these %d articles"
- gnus-number-of-articles-to-be-saved)
- "this article"))
- gnus-last-shell-command))))
- (when (string-equal command "")
- (setq command gnus-last-shell-command))
- (gnus-eval-in-buffer-window gnus-article-buffer
- (save-restriction
- (widen)
- (shell-command-on-region (point-min) (point-max) command nil)))
- (setq gnus-last-shell-command command))
-
- ;;; Article file names when saving.
-
- (defun gnus-capitalize-newsgroup (newsgroup)
- "Capitalize NEWSGROUP name."
- (when (not (zerop (length newsgroup)))
- (concat (char-to-string (upcase (aref newsgroup 0)))
- (substring newsgroup 1))))
-
- (defun gnus-Numeric-save-name (newsgroup headers &optional last-file)
- "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
- If variable `gnus-use-long-file-name' is non-nil, it is ~/News/News.group/num.
- Otherwise, it is like ~/News/news/group/num."
- (let ((default
- (expand-file-name
- (concat (if (gnus-use-long-file-name 'not-save)
- (gnus-capitalize-newsgroup newsgroup)
- (gnus-newsgroup-directory-form newsgroup))
- "/" (int-to-string (mail-header-number headers)))
- gnus-article-save-directory)))
- (if (and last-file
- (string-equal (file-name-directory default)
- (file-name-directory last-file))
- (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
- default
- (or last-file default))))
-
- (defun gnus-numeric-save-name (newsgroup headers &optional last-file)
- "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
- If variable `gnus-use-long-file-name' is non-nil, it is
- ~/News/news.group/num. Otherwise, it is like ~/News/news/group/num."
- (let ((default
- (expand-file-name
- (concat (if (gnus-use-long-file-name 'not-save)
- newsgroup
- (gnus-newsgroup-directory-form newsgroup))
- "/" (int-to-string (mail-header-number headers)))
- gnus-article-save-directory)))
- (if (and last-file
- (string-equal (file-name-directory default)
- (file-name-directory last-file))
- (string-match "^[0-9]+$" (file-name-nondirectory last-file)))
- default
- (or last-file default))))
-
- (defun gnus-Plain-save-name (newsgroup headers &optional last-file)
- "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
- If variable `gnus-use-long-file-name' is non-nil, it is
- ~/News/News.group. Otherwise, it is like ~/News/news/group/news."
- (or last-file
- (expand-file-name
- (if (gnus-use-long-file-name 'not-save)
- (gnus-capitalize-newsgroup newsgroup)
- (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
- gnus-article-save-directory)))
-
- (defun gnus-plain-save-name (newsgroup headers &optional last-file)
- "Generate file name from NEWSGROUP, HEADERS, and optional LAST-FILE.
- If variable `gnus-use-long-file-name' is non-nil, it is
- ~/News/news.group. Otherwise, it is like ~/News/news/group/news."
- (or last-file
- (expand-file-name
- (if (gnus-use-long-file-name 'not-save)
- newsgroup
- (concat (gnus-newsgroup-directory-form newsgroup) "/news"))
- gnus-article-save-directory)))
-
- (eval-and-compile
- (mapcar
- (lambda (func)
- (let (afunc gfunc)
- (if (consp func)
- (setq afunc (car func)
- gfunc (cdr func))
- (setq afunc func
- gfunc (intern (format "gnus-%s" func))))
- (fset gfunc
- (if (not (fboundp afunc))
- nil
- `(lambda (&optional interactive &rest args)
- ,(documentation afunc t)
- (interactive (list t))
- (save-excursion
- (set-buffer gnus-article-buffer)
- (if interactive
- (call-interactively ',afunc)
- (apply ',afunc args))))))))
- '(article-hide-headers
- article-hide-boring-headers
- article-treat-overstrike
- (article-fill . gnus-article-word-wrap)
- article-remove-cr
- article-display-x-face
- article-de-quoted-unreadable
- article-mime-decode-quoted-printable
- article-hide-pgp
- article-hide-pem
- article-hide-signature
- article-remove-trailing-blank-lines
- article-strip-leading-blank-lines
- article-strip-multiple-blank-lines
- article-strip-leading-space
- article-strip-blank-lines
- article-date-local
- article-date-original
- article-date-ut
- article-date-user
- article-date-lapsed
- article-emphasize
- (article-show-all . gnus-article-show-all-headers))))
-
- ;;;
- ;;; Gnus article mode
- ;;;
-
- (put 'gnus-article-mode 'mode-class 'special)
-
- (gnus-define-keys gnus-article-mode-map
- " " gnus-article-goto-next-page
- "\177" gnus-article-goto-prev-page
- [delete] gnus-article-goto-prev-page
- "\C-c^" gnus-article-refer-article
- "h" gnus-article-show-summary
- "s" gnus-article-show-summary
- "\C-c\C-m" gnus-article-mail
- "?" gnus-article-describe-briefly
- gnus-mouse-2 gnus-article-push-button
- "\r" gnus-article-press-button
- "\t" gnus-article-next-button
- "\M-\t" gnus-article-prev-button
- "e" gnus-article-edit
- "<" beginning-of-buffer
- ">" end-of-buffer
- "\C-c\C-i" gnus-info-find-node
- "\C-c\C-b" gnus-bug
-
- "\C-d" gnus-article-read-summary-keys
- "\M-*" gnus-article-read-summary-keys
- "\M-#" gnus-article-read-summary-keys
- "\M-^" gnus-article-read-summary-keys
- "\M-g" gnus-article-read-summary-keys)
-
- (substitute-key-definition
- 'undefined 'gnus-article-read-summary-keys gnus-article-mode-map)
-
- (defun gnus-article-make-menu-bar ()
- (gnus-turn-off-edit-menu 'article)
- (unless (boundp 'gnus-article-article-menu)
- (easy-menu-define
- gnus-article-article-menu gnus-article-mode-map ""
- '("Article"
- ["Scroll forwards" gnus-article-goto-next-page t]
- ["Scroll backwards" gnus-article-goto-prev-page t]
- ["Show summary" gnus-article-show-summary t]
- ["Fetch Message-ID at point" gnus-article-refer-article t]
- ["Mail to address at point" gnus-article-mail t]))
-
- (easy-menu-define
- gnus-article-treatment-menu gnus-article-mode-map ""
- '("Treatment"
- ["Hide headers" gnus-article-hide-headers t]
- ["Hide signature" gnus-article-hide-signature t]
- ["Hide citation" gnus-article-hide-citation t]
- ["Treat overstrike" gnus-article-treat-overstrike t]
- ["Remove carriage return" gnus-article-remove-cr t]
- ["Remove quoted-unreadable" gnus-article-de-quoted-unreadable t]))
-
- (when nil
- (when (boundp 'gnus-summary-article-menu)
- (define-key gnus-article-mode-map [menu-bar commands]
- (cons "Commands" gnus-summary-article-menu))))
-
- (when (boundp 'gnus-summary-post-menu)
- (define-key gnus-article-mode-map [menu-bar post]
- (cons "Post" gnus-summary-post-menu)))
-
- (run-hooks 'gnus-article-menu-hook)))
-
- (defun gnus-article-mode ()
- "Major mode for displaying an article.
-
- All normal editing commands are switched off.
-
- The following commands are available in addition to all summary mode
- commands:
- \\<gnus-article-mode-map>
- \\[gnus-article-next-page]\t Scroll the article one page forwards
- \\[gnus-article-prev-page]\t Scroll the article one page backwards
- \\[gnus-article-refer-article]\t Go to the article referred to by an article id near point
- \\[gnus-article-show-summary]\t Display the summary buffer
- \\[gnus-article-mail]\t Send a reply to the address near point
- \\[gnus-article-describe-briefly]\t Describe the current mode briefly
- \\[gnus-info-find-node]\t Go to the Gnus info node"
- (interactive)
- (when (gnus-visual-p 'article-menu 'menu)
- (gnus-article-make-menu-bar))
- (kill-all-local-variables)
- (gnus-simplify-mode-line)
- (setq mode-name "Article")
- (setq major-mode 'gnus-article-mode)
- (make-local-variable 'minor-mode-alist)
- (unless (assq 'gnus-show-mime minor-mode-alist)
- (push (list 'gnus-show-mime " MIME") minor-mode-alist))
- (use-local-map gnus-article-mode-map)
- (gnus-update-format-specifications nil 'article-mode)
- (set (make-local-variable 'page-delimiter) gnus-page-delimiter)
- (set (make-local-variable 'gnus-page-broken) nil)
- (set (make-local-variable 'gnus-button-marker-list) nil)
- (gnus-set-default-directory)
- (buffer-disable-undo (current-buffer))
- (setq buffer-read-only t)
- (set-syntax-table gnus-article-mode-syntax-table)
- (run-hooks 'gnus-article-mode-hook))
-
- (defun gnus-article-setup-buffer ()
- "Initialize the article buffer."
- (let* ((name (if gnus-single-article-buffer "*Article*"
- (concat "*Article " gnus-newsgroup-name "*")))
- (original
- (progn (string-match "\\*Article" name)
- (concat " *Original Article"
- (substring name (match-end 0))))))
- (setq gnus-article-buffer name)
- (setq gnus-original-article-buffer original)
- ;; This might be a variable local to the summary buffer.
- (unless gnus-single-article-buffer
- (save-excursion
- (set-buffer gnus-summary-buffer)
- (setq gnus-article-buffer name)
- (setq gnus-original-article-buffer original)
- (gnus-set-global-variables)))
- ;; Init original article buffer.
- (save-excursion
- (set-buffer (get-buffer-create gnus-original-article-buffer))
- (buffer-disable-undo (current-buffer))
- (setq major-mode 'gnus-original-article-mode)
- (gnus-add-current-to-buffer-list)
- (make-local-variable 'gnus-original-article))
- (if (get-buffer name)
- (save-excursion
- (set-buffer name)
- (buffer-disable-undo (current-buffer))
- (setq buffer-read-only t)
- (gnus-add-current-to-buffer-list)
- (unless (eq major-mode 'gnus-article-mode)
- (gnus-article-mode))
- (current-buffer))
- (save-excursion
- (set-buffer (get-buffer-create name))
- (gnus-add-current-to-buffer-list)
- (gnus-article-mode)
- (make-local-variable 'gnus-summary-buffer)
- (current-buffer)))))
-
- ;; Set article window start at LINE, where LINE is the number of lines
- ;; from the head of the article.
- (defun gnus-article-set-window-start (&optional line)
- (set-window-start
- (get-buffer-window gnus-article-buffer t)
- (save-excursion
- (set-buffer gnus-article-buffer)
- (goto-char (point-min))
- (if (not line)
- (point-min)
- (gnus-message 6 "Moved to bookmark")
- (search-forward "\n\n" nil t)
- (forward-line line)
- (point)))))
-
- (defun gnus-article-prepare (article &optional all-headers header)
- "Prepare ARTICLE in article mode buffer.
- ARTICLE should either be an article number or a Message-ID.
- If ARTICLE is an id, HEADER should be the article headers.
- If ALL-HEADERS is non-nil, no headers are hidden."
- (save-excursion
- ;; Make sure we start in a summary buffer.
- (unless (eq major-mode 'gnus-summary-mode)
- (set-buffer gnus-summary-buffer))
- (setq gnus-summary-buffer (current-buffer))
- ;; Make sure the connection to the server is alive.
- (unless (gnus-server-opened
- (gnus-find-method-for-group gnus-newsgroup-name))
- (gnus-check-server (gnus-find-method-for-group gnus-newsgroup-name))
- (gnus-request-group gnus-newsgroup-name t))
- (let* ((gnus-article (if header (mail-header-number header) article))
- (summary-buffer (current-buffer))
- (internal-hook gnus-article-internal-prepare-hook)
- (group gnus-newsgroup-name)
- result)
- (save-excursion
- (gnus-article-setup-buffer)
- (set-buffer gnus-article-buffer)
- ;; Deactivate active regions.
- (when (and (boundp 'transient-mark-mode)
- transient-mark-mode)
- (setq mark-active nil))
- (if (not (setq result (let ((buffer-read-only nil))
- (gnus-request-article-this-buffer
- article group))))
- ;; There is no such article.
- (save-excursion
- (when (and (numberp article)
- (not (memq article gnus-newsgroup-sparse)))
- (setq gnus-article-current
- (cons gnus-newsgroup-name article))
- (set-buffer gnus-summary-buffer)
- (setq gnus-current-article article)
- (gnus-summary-mark-article article gnus-canceled-mark))
- (unless (memq article gnus-newsgroup-sparse)
- (gnus-error
- 1 "No such article (may have expired or been canceled)")))
- (if (or (eq result 'pseudo) (eq result 'nneething))
- (progn
- (save-excursion
- (set-buffer summary-buffer)
- (setq gnus-last-article gnus-current-article
- gnus-newsgroup-history (cons gnus-current-article
- gnus-newsgroup-history)
- gnus-current-article 0
- gnus-current-headers nil
- gnus-article-current nil)
- (if (eq result 'nneething)
- (gnus-configure-windows 'summary)
- (gnus-configure-windows 'article))
- (gnus-set-global-variables))
- (gnus-set-mode-line 'article))
- ;; The result from the `request' was an actual article -
- ;; or at least some text that is now displayed in the
- ;; article buffer.
- (when (and (numberp article)
- (not (eq article gnus-current-article)))
- ;; Seems like a new article has been selected.
- ;; `gnus-current-article' must be an article number.
- (save-excursion
- (set-buffer summary-buffer)
- (setq gnus-last-article gnus-current-article
- gnus-newsgroup-history (cons gnus-current-article
- gnus-newsgroup-history)
- gnus-current-article article
- gnus-current-headers
- (gnus-summary-article-header gnus-current-article)
- gnus-article-current
- (cons gnus-newsgroup-name gnus-current-article))
- (unless (vectorp gnus-current-headers)
- (setq gnus-current-headers nil))
- (gnus-summary-show-thread)
- (run-hooks 'gnus-mark-article-hook)
- (gnus-set-mode-line 'summary)
- (when (gnus-visual-p 'article-highlight 'highlight)
- (run-hooks 'gnus-visual-mark-article-hook))
- ;; Set the global newsgroup variables here.
- ;; Suggested by Jim Sisolak
- ;; <sisolak@trans4.neep.wisc.edu>.
- (gnus-set-global-variables)
- (setq gnus-have-all-headers
- (or all-headers gnus-show-all-headers))
- (and gnus-use-cache
- (vectorp (gnus-summary-article-header article))
- (gnus-cache-possibly-enter-article
- group article
- (gnus-summary-article-header article)
- (memq article gnus-newsgroup-marked)
- (memq article gnus-newsgroup-dormant)
- (memq article gnus-newsgroup-unreads)))))
- (when (or (numberp article)
- (stringp article))
- ;; Hooks for getting information from the article.
- ;; This hook must be called before being narrowed.
- (let (buffer-read-only)
- (run-hooks 'internal-hook)
- (run-hooks 'gnus-article-prepare-hook)
- ;; Decode MIME message.
- (when gnus-show-mime
- (if (or (not gnus-strict-mime)
- (gnus-fetch-field "Mime-Version"))
- (funcall gnus-show-mime-method)
- (funcall gnus-decode-encoded-word-method)))
- ;; Perform the article display hooks.
- (run-hooks 'gnus-article-display-hook))
- ;; Do page break.
- (goto-char (point-min))
- (setq gnus-page-broken
- (when gnus-break-pages
- (gnus-narrow-to-page)
- t)))
- (gnus-set-mode-line 'article)
- (gnus-configure-windows 'article)
- (goto-char (point-min))
- t))))))
-
- (defun gnus-article-wash-status ()
- "Return a string which display status of article washing."
- (save-excursion
- (set-buffer gnus-article-buffer)
- (let ((cite (gnus-article-hidden-text-p 'cite))
- (headers (gnus-article-hidden-text-p 'headers))
- (boring (gnus-article-hidden-text-p 'boring-headers))
- (pgp (gnus-article-hidden-text-p 'pgp))
- (pem (gnus-article-hidden-text-p 'pem))
- (signature (gnus-article-hidden-text-p 'signature))
- (overstrike (gnus-article-hidden-text-p 'overstrike))
- (emphasis (gnus-article-hidden-text-p 'emphasis))
- (mime gnus-show-mime))
- (format "%c%c%c%c%c%c%c"
- (if cite ?c ? )
- (if (or headers boring) ?h ? )
- (if (or pgp pem) ?p ? )
- (if signature ?s ? )
- (if overstrike ?o ? )
- (if mime ?m ? )
- (if emphasis ?e ? )))))
-
- (defun gnus-article-hide-headers-if-wanted ()
- "Hide unwanted headers if `gnus-have-all-headers' is nil.
- Provided for backwards compatibility."
- (or (save-excursion (set-buffer gnus-summary-buffer) gnus-have-all-headers)
- gnus-inhibit-hiding
- (gnus-article-hide-headers)))
-
- ;;; Article savers.
-
- (defun gnus-output-to-file (file-name)
- "Append the current article to a file named FILE-NAME."
- (let ((artbuf (current-buffer)))
- (nnheader-temp-write nil
- (insert-buffer-substring artbuf)
- ;; Append newline at end of the buffer as separator, and then
- ;; save it to file.
- (goto-char (point-max))
- (insert "\n")
- (append-to-file (point-min) (point-max) file-name)
- t)))
-
- (defun gnus-narrow-to-page (&optional arg)
- "Narrow the article buffer to a page.
- If given a numerical ARG, move forward ARG pages."
- (interactive "P")
- (setq arg (if arg (prefix-numeric-value arg) 0))
- (save-excursion
- (set-buffer gnus-article-buffer)
- (goto-char (point-min))
- (widen)
- ;; Remove any old next/prev buttons.
- (when (gnus-visual-p 'page-marker)
- (let ((buffer-read-only nil))
- (gnus-remove-text-with-property 'gnus-prev)
- (gnus-remove-text-with-property 'gnus-next)))
- (when
- (cond ((< arg 0)
- (re-search-backward page-delimiter nil 'move (1+ (abs arg))))
- ((> arg 0)
- (re-search-forward page-delimiter nil 'move arg)))
- (goto-char (match-end 0)))
- (narrow-to-region
- (point)
- (if (re-search-forward page-delimiter nil 'move)
- (match-beginning 0)
- (point)))
- (when (and (gnus-visual-p 'page-marker)
- (not (= (point-min) 1)))
- (save-excursion
- (goto-char (point-min))
- (gnus-insert-prev-page-button)))
- (when (and (gnus-visual-p 'page-marker)
- (< (+ (point-max) 2) (buffer-size)))
- (save-excursion
- (goto-char (point-max))
- (gnus-insert-next-page-button)))))
-
- ;; Article mode commands
-
- (defun gnus-article-goto-next-page ()
- "Show the next page of the article."
- (interactive)
- (when (gnus-article-next-page)
- (goto-char (point-min))
- (gnus-article-read-summary-keys nil (gnus-character-to-event ?n))))
-
- (defun gnus-article-goto-prev-page ()
- "Show the next page of the article."
- (interactive)
- (if (bobp) (gnus-article-read-summary-keys nil (gnus-character-to-event ?p))
- (gnus-article-prev-page nil)))
-
- (defun gnus-article-next-page (&optional lines)
- "Show the next page of the current article.
- If end of article, return non-nil. Otherwise return nil.
- Argument LINES specifies lines to be scrolled up."
- (interactive "p")
- (move-to-window-line -1)
- (if (save-excursion
- (end-of-line)
- (and (pos-visible-in-window-p) ;Not continuation line.
- (eobp)))
- ;; Nothing in this page.
- (if (or (not gnus-page-broken)
- (save-excursion
- (save-restriction
- (widen) (forward-line 1) (eobp)))) ;Real end-of-buffer?
- t ;Nothing more.
- (gnus-narrow-to-page 1) ;Go to next page.
- nil)
- ;; More in this page.
- (let ((scroll-in-place nil))
- (condition-case ()
- (scroll-up lines)
- (end-of-buffer
- ;; Long lines may cause an end-of-buffer error.
- (goto-char (point-max)))))
- (move-to-window-line 0)
- nil))
-
- (defun gnus-article-prev-page (&optional lines)
- "Show previous page of current article.
- Argument LINES specifies lines to be scrolled down."
- (interactive "p")
- (move-to-window-line 0)
- (if (and gnus-page-broken
- (bobp)
- (not (save-restriction (widen) (bobp)))) ;Real beginning-of-buffer?
- (progn
- (gnus-narrow-to-page -1) ;Go to previous page.
- (goto-char (point-max))
- (recenter -1))
- (let ((scroll-in-place nil))
- (prog1
- (condition-case ()
- (scroll-down lines)
- (beginning-of-buffer
- (goto-char (point-min))))
- (move-to-window-line 0)))))
-
- (defun gnus-article-refer-article ()
- "Read article specified by message-id around point."
- (interactive)
- (let ((point (point)))
- (search-forward ">" nil t) ;Move point to end of "<....>".
- (if (re-search-backward "\\(<[^<> \t\n]+>\\)" nil t)
- (let ((message-id (match-string 1)))
- (goto-char point)
- (set-buffer gnus-summary-buffer)
- (gnus-summary-refer-article message-id))
- (goto-char (point))
- (error "No references around point"))))
-
- (defun gnus-article-show-summary ()
- "Reconfigure windows to show summary buffer."
- (interactive)
- (if (not (gnus-buffer-live-p gnus-summary-buffer))
- (error "There is no summary buffer for this article buffer")
- (gnus-article-set-globals)
- (gnus-configure-windows 'article)
- (gnus-summary-goto-subject gnus-current-article)))
-
- (defun gnus-article-describe-briefly ()
- "Describe article mode commands briefly."
- (interactive)
- (gnus-message 6
- (substitute-command-keys "\\<gnus-article-mode-map>\\[gnus-article-goto-next-page]:Next page \\[gnus-article-goto-prev-page]:Prev page \\[gnus-article-show-summary]:Show summary \\[gnus-info-find-node]:Run Info \\[gnus-article-describe-briefly]:This help")))
-
- (defun gnus-article-summary-command ()
- "Execute the last keystroke in the summary buffer."
- (interactive)
- (let ((obuf (current-buffer))
- (owin (current-window-configuration))
- func)
- (switch-to-buffer gnus-summary-buffer 'norecord)
- (setq func (lookup-key (current-local-map) (this-command-keys)))
- (call-interactively func)
- (set-buffer obuf)
- (set-window-configuration owin)
- (set-window-point (get-buffer-window (current-buffer)) (point))))
-
- (defun gnus-article-summary-command-nosave ()
- "Execute the last keystroke in the summary buffer."
- (interactive)
- (let (func)
- (pop-to-buffer gnus-summary-buffer 'norecord)
- (setq func (lookup-key (current-local-map) (this-command-keys)))
- (call-interactively func)))
-
- (defun gnus-article-read-summary-keys (&optional arg key not-restore-window)
- "Read a summary buffer key sequence and execute it from the article buffer."
- (interactive "P")
- (let ((nosaves
- '("q" "Q" "c" "r" "R" "\C-c\C-f" "m" "a" "f" "F"
- "Zc" "ZC" "ZE" "ZQ" "ZZ" "Zn" "ZR" "ZG" "ZN" "ZP"
- "=" "^" "\M-^" "|"))
- (nosave-but-article
- '("A\r"))
- (nosave-in-article
- '("\C-d"))
- keys)
- (save-excursion
- (set-buffer gnus-summary-buffer)
- (let (gnus-pick-mode)
- (push (or key last-command-event) unread-command-events)
- (setq keys (read-key-sequence nil))))
- (message "")
-
- (if (or (member keys nosaves)
- (member keys nosave-but-article)
- (member keys nosave-in-article))
- (let (func)
- (save-window-excursion
- (pop-to-buffer gnus-summary-buffer 'norecord)
- ;; We disable the pick minor mode commands.
- (let (gnus-pick-mode)
- (setq func (lookup-key (current-local-map) keys))))
- (if (not func)
- (ding)
- (unless (member keys nosave-in-article)
- (set-buffer gnus-summary-buffer))
- (call-interactively func))
- (when (member keys nosave-but-article)
- (pop-to-buffer gnus-article-buffer 'norecord)))
- ;; These commands should restore window configuration.
- (let ((obuf (current-buffer))
- (owin (current-window-configuration))
- (opoint (point))
- func in-buffer)
- (if not-restore-window
- (pop-to-buffer gnus-summary-buffer 'norecord)
- (switch-to-buffer gnus-summary-buffer 'norecord))
- (setq in-buffer (current-buffer))
- ;; We disable the pick minor mode commands.
- (if (setq func (let (gnus-pick-mode)
- (lookup-key (current-local-map) keys)))
- (call-interactively func)
- (ding))
- (when (eq in-buffer (current-buffer))
- (set-buffer obuf)
- (unless not-restore-window
- (set-window-configuration owin))
- (set-window-point (get-buffer-window (current-buffer)) opoint))))))
-
- (defun gnus-article-hide (&optional arg force)
- "Hide all the gruft in the current article.
- This means that PGP stuff, signatures, cited text and (some)
- headers will be hidden.
- If given a prefix, show the hidden text instead."
- (interactive (list current-prefix-arg 'force))
- (gnus-article-hide-headers arg)
- (gnus-article-hide-pgp arg)
- (gnus-article-hide-citation-maybe arg force)
- (gnus-article-hide-signature arg))
-
- (defun gnus-article-maybe-highlight ()
- "Do some article highlighting if `article-visual' is non-nil."
- (when (gnus-visual-p 'article-highlight 'highlight)
- (gnus-article-highlight-some)))
-
- (defun gnus-request-article-this-buffer (article group)
- "Get an article and insert it into this buffer."
- (let (do-update-line)
- (prog1
- (save-excursion
- (erase-buffer)
- (gnus-kill-all-overlays)
- (setq group (or group gnus-newsgroup-name))
-
- ;; Open server if it has closed.
- (gnus-check-server (gnus-find-method-for-group group))
-
- ;; Using `gnus-request-article' directly will insert the article into
- ;; `nntp-server-buffer' - so we'll save some time by not having to
- ;; copy it from the server buffer into the article buffer.
-
- ;; We only request an article by message-id when we do not have the
- ;; headers for it, so we'll have to get those.
- (when (stringp article)
- (let ((gnus-override-method gnus-refer-article-method))
- (gnus-read-header article)))
-
- ;; If the article number is negative, that means that this article
- ;; doesn't belong in this newsgroup (possibly), so we find its
- ;; message-id and request it by id instead of number.
- (when (and (numberp article)
- gnus-summary-buffer
- (get-buffer gnus-summary-buffer)
- (buffer-name (get-buffer gnus-summary-buffer)))
- (save-excursion
- (set-buffer gnus-summary-buffer)
- (let ((header (gnus-summary-article-header article)))
- (when (< article 0)
- (cond
- ((memq article gnus-newsgroup-sparse)
- ;; This is a sparse gap article.
- (setq do-update-line article)
- (setq article (mail-header-id header))
- (let ((gnus-override-method gnus-refer-article-method))
- (gnus-read-header article))
- (setq gnus-newsgroup-sparse
- (delq article gnus-newsgroup-sparse)))
- ((vectorp header)
- ;; It's a real article.
- (setq article (mail-header-id header)))
- (t
- ;; It is an extracted pseudo-article.
- (setq article 'pseudo)
- (gnus-request-pseudo-article header))))
-
- (let ((method (gnus-find-method-for-group
- gnus-newsgroup-name)))
- (if (not (eq (car method) 'nneething))
- ()
- (let ((dir (concat (file-name-as-directory (nth 1 method))
- (mail-header-subject header))))
- (when (file-directory-p dir)
- (setq article 'nneething)
- (gnus-group-enter-directory dir))))))))
-
- (cond
- ;; Refuse to select canceled articles.
- ((and (numberp article)
- gnus-summary-buffer
- (get-buffer gnus-summary-buffer)
- (buffer-name (get-buffer gnus-summary-buffer))
- (eq (cdr (save-excursion
- (set-buffer gnus-summary-buffer)
- (assq article gnus-newsgroup-reads)))
- gnus-canceled-mark))
- nil)
- ;; We first check `gnus-original-article-buffer'.
- ((and (get-buffer gnus-original-article-buffer)
- (numberp article)
- (save-excursion
- (set-buffer gnus-original-article-buffer)
- (and (equal (car gnus-original-article) group)
- (eq (cdr gnus-original-article) article))))
- (insert-buffer-substring gnus-original-article-buffer)
- 'article)
- ;; Check the backlog.
- ((and gnus-keep-backlog
- (gnus-backlog-request-article group article (current-buffer)))
- 'article)
- ;; Check asynchronous pre-fetch.
- ((gnus-async-request-fetched-article group article (current-buffer))
- (gnus-async-prefetch-next group article gnus-summary-buffer)
- 'article)
- ;; Check the cache.
- ((and gnus-use-cache
- (numberp article)
- (gnus-cache-request-article article group))
- 'article)
- ;; Get the article and put into the article buffer.
- ((or (stringp article) (numberp article))
- (let ((gnus-override-method
- (and (stringp article) gnus-refer-article-method))
- (buffer-read-only nil))
- (erase-buffer)
- (gnus-kill-all-overlays)
- (when (gnus-request-article article group (current-buffer))
- (when (numberp article)
- (gnus-async-prefetch-next group article gnus-summary-buffer)
- (when gnus-keep-backlog
- (gnus-backlog-enter-article
- group article (current-buffer))))
- 'article)))
- ;; It was a pseudo.
- (t article)))
-
- ;; Take the article from the original article buffer
- ;; and place it in the buffer it's supposed to be in.
- (when (and (get-buffer gnus-article-buffer)
- ;;(numberp article)
- (equal (buffer-name (current-buffer))
- (buffer-name (get-buffer gnus-article-buffer))))
- (save-excursion
- (if (get-buffer gnus-original-article-buffer)
- (set-buffer (get-buffer gnus-original-article-buffer))
- (set-buffer (get-buffer-create gnus-original-article-buffer))
- (buffer-disable-undo (current-buffer))
- (setq major-mode 'gnus-original-article-mode)
- (setq buffer-read-only t)
- (gnus-add-current-to-buffer-list))
- (let (buffer-read-only)
- (erase-buffer)
- (insert-buffer-substring gnus-article-buffer))
- (setq gnus-original-article (cons group article))))
-
- ;; Update sparse articles.
- (when (and do-update-line
- (or (numberp article)
- (stringp article)))
- (let ((buf (current-buffer)))
- (set-buffer gnus-summary-buffer)
- (gnus-summary-update-article do-update-line)
- (gnus-summary-goto-subject do-update-line nil t)
- (set-window-point (get-buffer-window (current-buffer) t)
- (point))
- (set-buffer buf))))))
-
- ;;;
- ;;; Article editing
- ;;;
-
- (defcustom gnus-article-edit-mode-hook nil
- "Hook run in article edit mode buffers."
- :group 'gnus-article-various
- :type 'hook)
-
- (defvar gnus-article-edit-done-function nil)
-
- (defvar gnus-article-edit-mode-map nil)
-
- (unless gnus-article-edit-mode-map
- (setq gnus-article-edit-mode-map (copy-keymap text-mode-map))
-
- (gnus-define-keys gnus-article-edit-mode-map
- "\C-c\C-c" gnus-article-edit-done
- "\C-c\C-k" gnus-article-edit-exit)
-
- (gnus-define-keys (gnus-article-edit-wash-map
- "\C-c\C-w" gnus-article-edit-mode-map)
- "f" gnus-article-edit-full-stops))
-
- (defun gnus-article-edit-mode ()
- "Major mode for editing articles.
- This is an extended text-mode.
-
- \\{gnus-article-edit-mode-map}"
- (interactive)
- (kill-all-local-variables)
- (setq major-mode 'gnus-article-edit-mode)
- (setq mode-name "Article Edit")
- (use-local-map gnus-article-edit-mode-map)
- (make-local-variable 'gnus-article-edit-done-function)
- (make-local-variable 'gnus-prev-winconf)
- (setq buffer-read-only nil)
- (buffer-enable-undo)
- (widen)
- (run-hooks 'text-mode 'gnus-article-edit-mode-hook))
-
- (defun gnus-article-edit (&optional force)
- "Edit the current article.
- This will have permanent effect only in mail groups.
- If FORCE is non-nil, allow editing of articles even in read-only
- groups."
- (interactive "P")
- (when (and (not force)
- (gnus-group-read-only-p))
- (error "The current newsgroup does not support article editing"))
- (gnus-article-edit-article
- `(lambda ()
- (gnus-summary-edit-article-done
- ,(or (mail-header-references gnus-current-headers) "")
- ,(gnus-group-read-only-p) ,gnus-summary-buffer))))
-
- (defun gnus-article-edit-article (exit-func)
- "Start editing the contents of the current article buffer."
- (let ((winconf (current-window-configuration)))
- (set-buffer gnus-article-buffer)
- (gnus-article-edit-mode)
- (gnus-set-text-properties (point-min) (point-max) nil)
- (gnus-configure-windows 'edit-article)
- (setq gnus-article-edit-done-function exit-func)
- (setq gnus-prev-winconf winconf)
- (gnus-message 6 "C-c C-c to end edits")))
-
- (defun gnus-article-edit-done ()
- "Update the article edits and exit."
- (interactive)
- (let ((func gnus-article-edit-done-function)
- (buf (current-buffer))
- (start (window-start)))
- (gnus-article-edit-exit)
- (save-excursion
- (set-buffer buf)
- (let ((buffer-read-only nil))
- (funcall func)))
- (set-buffer buf)
- (set-window-start (get-buffer-window buf) start)
- (set-window-point (get-buffer-window buf) (point))))
-
- (defun gnus-article-edit-exit ()
- "Exit the article editing without updating."
- (interactive)
- ;; We remove all text props from the article buffer.
- (let ((buf (format "%s" (buffer-string)))
- (curbuf (current-buffer))
- (p (point))
- (window-start (window-start)))
- (erase-buffer)
- (insert buf)
- (let ((winconf gnus-prev-winconf))
- (gnus-article-mode)
- ;; The cache and backlog have to be flushed somewhat.
- (when gnus-use-cache
- (gnus-cache-update-article
- (car gnus-article-current) (cdr gnus-article-current)))
- (when gnus-keep-backlog
- (gnus-backlog-remove-article
- (car gnus-article-current) (cdr gnus-article-current)))
- ;; Flush original article as well.
- (save-excursion
- (when (get-buffer gnus-original-article-buffer)
- (set-buffer gnus-original-article-buffer)
- (setq gnus-original-article nil)))
- (set-window-configuration winconf)
- ;; Tippy-toe some to make sure that point remains where it was.
- (let ((buf (current-buffer)))
- (set-buffer curbuf)
- (set-window-start (get-buffer-window (current-buffer)) window-start)
- (goto-char p)
- (set-buffer buf)))))
-
- (defun gnus-article-edit-full-stops ()
- "Interactively repair spacing at end of sentences."
- (interactive)
- (save-excursion
- (goto-char (point-min))
- (search-forward-regexp "^$" nil t)
- (let ((case-fold-search nil))
- (query-replace-regexp "\\([.!?][])}]* \\)\\([[({A-Z]\\)" "\\1 \\2"))))
-
- ;;;
- ;;; Article highlights
- ;;;
-
- ;; Written by Per Abrahamsen <abraham@iesd.auc.dk>.
-
- ;;; Internal Variables:
-
- (defcustom gnus-button-url-regexp "\\b\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|telnet\\|wais\\|mailto\\):\\(//[-a-zA-Z0-9_.]+:[0-9]*\\)?\\([-a-zA-Z0-9_=!?#$@~`%&*+|\\/:;.,]\\|\\w\\)+\\([-a-zA-Z0-9_=#$@~`%&*+|\\/]\\|\\w\\)"
- "Regular expression that matches URLs."
- :group 'gnus-article-buttons
- :type 'regexp)
-
- (defcustom gnus-button-alist
- `(("<\\(url: ?\\)?news:\\([^>\n\t ]*@[^>\n\t ]*\\)>" 0 t
- gnus-button-message-id 2)
- ("\\bnews:\\([^>\n\t ]*@[^>\n\t ]*\\)" 0 t gnus-button-message-id 1)
- ("\\(\\b<\\(url: ?\\)?news:\\(//\\)?\\([^>\n\t ]*\\)>\\)" 1 t
- gnus-button-fetch-group 4)
- ("\\bnews:\\(//\\)?\\([^>\n\t ]+\\)" 0 t gnus-button-fetch-group 2)
- ("\\bin\\( +article\\)? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)" 2
- t gnus-button-message-id 3)
- ("\\(<URL: *\\)mailto: *\\([^> \n\t]+\\)>" 0 t gnus-url-mailto 2)
- ("\\bmailto:\\([^ \n\t]+\\)" 0 t gnus-url-mailto 1)
- ;; This is how URLs _should_ be embedded in text...
- ("<URL: *\\([^>]*\\)>" 0 t gnus-button-embedded-url 1)
- ;; Raw URLs.
- (,gnus-button-url-regexp 0 t gnus-button-url 0))
- "Alist of regexps matching buttons in article bodies.
-
- Each entry has the form (REGEXP BUTTON FORM CALLBACK PAR...), where
- REGEXP: is the string matching text around the button,
- BUTTON: is the number of the regexp grouping actually matching the button,
- FORM: is a lisp expression which must eval to true for the button to
- be added,
- CALLBACK: is the function to call when the user push this button, and each
- PAR: is a number of a regexp grouping whose text will be passed to CALLBACK.
-
- CALLBACK can also be a variable, in that case the value of that
- variable it the real callback function."
- :group 'gnus-article-buttons
- :type '(repeat (list regexp
- (integer :tag "Button")
- (sexp :tag "Form")
- (function :tag "Callback")
- (repeat :tag "Par"
- :inline t
- (integer :tag "Regexp group")))))
-
- (defcustom gnus-header-button-alist
- `(("^\\(References\\|Message-I[Dd]\\):" "<[^>]+>"
- 0 t gnus-button-message-id 0)
- ("^\\(From\\|Reply-To\\):" ": *\\(.+\\)$" 1 t gnus-button-reply 1)
- ("^\\(Cc\\|To\\):" "[^ \t\n<>,()\"]+@[^ \t\n<>,()\"]+"
- 0 t gnus-button-mailto 0)
- ("^X-[Uu][Rr][Ll]:" ,gnus-button-url-regexp 0 t gnus-button-url 0)
- ("^Subject:" ,gnus-button-url-regexp 0 t gnus-button-url 0)
- ("^[^:]+:" ,gnus-button-url-regexp 0 t gnus-button-url 0)
- ("^[^:]+:" "\\(<\\(url: \\)?news:\\([^>\n ]*\\)>\\)" 1 t
- gnus-button-message-id 3))
- "Alist of headers and regexps to match buttons in article heads.
-
- This alist is very similar to `gnus-button-alist', except that each
- alist has an additional HEADER element first in each entry:
-
- \(HEADER REGEXP BUTTON FORM CALLBACK PAR)
-
- HEADER is a regexp to match a header. For a fuller explanation, see
- `gnus-button-alist'."
- :group 'gnus-article-buttons
- :group 'gnus-article-headers
- :type '(repeat (list (regexp :tag "Header")
- regexp
- (integer :tag "Button")
- (sexp :tag "Form")
- (function :tag "Callback")
- (repeat :tag "Par"
- :inline t
- (integer :tag "Regexp group")))))
-
- (defvar gnus-button-regexp nil)
- (defvar gnus-button-marker-list nil)
- ;; Regexp matching any of the regexps from `gnus-button-alist'.
-
- (defvar gnus-button-last nil)
- ;; The value of `gnus-button-alist' when `gnus-button-regexp' was build.
-
- ;;; Commands:
-
- (defun gnus-article-push-button (event)
- "Check text under the mouse pointer for a callback function.
- If the text under the mouse pointer has a `gnus-callback' property,
- call it with the value of the `gnus-data' text property."
- (interactive "e")
- (set-buffer (window-buffer (posn-window (event-start event))))
- (let* ((pos (posn-point (event-start event)))
- (data (get-text-property pos 'gnus-data))
- (fun (get-text-property pos 'gnus-callback)))
- (when fun
- (funcall fun data))))
-
- (defun gnus-article-press-button ()
- "Check text at point for a callback function.
- If the text at point has a `gnus-callback' property,
- call it with the value of the `gnus-data' text property."
- (interactive)
- (let* ((data (get-text-property (point) 'gnus-data))
- (fun (get-text-property (point) 'gnus-callback)))
- (when fun
- (funcall fun data))))
-
- (defun gnus-article-prev-button (n)
- "Move point to N buttons backward.
- If N is negative, move forward instead."
- (interactive "p")
- (gnus-article-next-button (- n)))
-
- (defun gnus-article-next-button (n)
- "Move point to N buttons forward.
- If N is negative, move backward instead."
- (interactive "p")
- (let ((function (if (< n 0) 'previous-single-property-change
- 'next-single-property-change))
- (inhibit-point-motion-hooks t)
- (backward (< n 0))
- (limit (if (< n 0) (point-min) (point-max))))
- (setq n (abs n))
- (while (and (not (= limit (point)))
- (> n 0))
- ;; Skip past the current button.
- (when (get-text-property (point) 'gnus-callback)
- (goto-char (funcall function (point) 'gnus-callback nil limit)))
- ;; Go to the next (or previous) button.
- (gnus-goto-char (funcall function (point) 'gnus-callback nil limit))
- ;; Put point at the start of the button.
- (when (and backward (not (get-text-property (point) 'gnus-callback)))
- (goto-char (funcall function (point) 'gnus-callback nil limit)))
- ;; Skip past intangible buttons.
- (when (get-text-property (point) 'intangible)
- (incf n))
- (decf n))
- (unless (zerop n)
- (gnus-message 5 "No more buttons"))
- n))
-
- (defun gnus-article-highlight (&optional force)
- "Highlight current article.
- This function calls `gnus-article-highlight-headers',
- `gnus-article-highlight-citation',
- `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
- do the highlighting. See the documentation for those functions."
- (interactive (list 'force))
- (gnus-article-highlight-headers)
- (gnus-article-highlight-citation force)
- (gnus-article-highlight-signature)
- (gnus-article-add-buttons force)
- (gnus-article-add-buttons-to-head))
-
- (defun gnus-article-highlight-some (&optional force)
- "Highlight current article.
- This function calls `gnus-article-highlight-headers',
- `gnus-article-highlight-signature', and `gnus-article-add-buttons' to
- do the highlighting. See the documentation for those functions."
- (interactive (list 'force))
- (gnus-article-highlight-headers)
- (gnus-article-highlight-signature)
- (gnus-article-add-buttons))
-
- (defun gnus-article-highlight-headers ()
- "Highlight article headers as specified by `gnus-header-face-alist'."
- (interactive)
- (save-excursion
- (set-buffer gnus-article-buffer)
- (save-restriction
- (let ((alist gnus-header-face-alist)
- (buffer-read-only nil)
- (case-fold-search t)
- (inhibit-point-motion-hooks t)
- entry regexp header-face field-face from hpoints fpoints)
- (message-narrow-to-head)
- (while (setq entry (pop alist))
- (goto-char (point-min))
- (setq regexp (concat "^\\("
- (if (string-equal "" (nth 0 entry))
- "[^\t ]"
- (nth 0 entry))
- "\\)")
- header-face (nth 1 entry)
- field-face (nth 2 entry))
- (while (and (re-search-forward regexp nil t)
- (not (eobp)))
- (beginning-of-line)
- (setq from (point))
- (unless (search-forward ":" nil t)
- (forward-char 1))
- (when (and header-face
- (not (memq (point) hpoints)))
- (push (point) hpoints)
- (gnus-put-text-property from (point) 'face header-face))
- (when (and field-face
- (not (memq (setq from (point)) fpoints)))
- (push from fpoints)
- (if (re-search-forward "^[^ \t]" nil t)
- (forward-char -2)
- (goto-char (point-max)))
- (gnus-put-text-property from (point) 'face field-face))))))))
-
- (defun gnus-article-highlight-signature ()
- "Highlight the signature in an article.
- It does this by highlighting everything after
- `gnus-signature-separator' using `gnus-signature-face'."
- (interactive)
- (save-excursion
- (set-buffer gnus-article-buffer)
- (let ((buffer-read-only nil)
- (inhibit-point-motion-hooks t))
- (save-restriction
- (when (and gnus-signature-face
- (gnus-article-narrow-to-signature))
- (gnus-overlay-put (gnus-make-overlay (point-min) (point-max))
- 'face gnus-signature-face)
- (widen)
- (gnus-article-search-signature)
- (let ((start (match-beginning 0))
- (end (set-marker (make-marker) (1+ (match-end 0)))))
- (gnus-article-add-button start (1- end) 'gnus-signature-toggle
- end)))))))
-
- (defun gnus-button-in-region-p (b e prop)
- "Say whether PROP exists in the region."
- (text-property-not-all b e prop nil))
-
- (defun gnus-article-add-buttons (&optional force)
- "Find external references in the article and make buttons of them.
- \"External references\" are things like Message-IDs and URLs, as
- specified by `gnus-button-alist'."
- (interactive (list 'force))
- (save-excursion
- (set-buffer gnus-article-buffer)
- (let ((buffer-read-only nil)
- (inhibit-point-motion-hooks t)
- (case-fold-search t)
- (alist gnus-button-alist)
- beg entry regexp)
- ;; Remove all old markers.
- (let (marker entry)
- (while (setq marker (pop gnus-button-marker-list))
- (goto-char marker)
- (when (setq entry (gnus-button-entry))
- (put-text-property (match-beginning (nth 1 entry))
- (match-end (nth 1 entry))
- 'gnus-callback nil))
- (set-marker marker nil)))
- ;; We skip the headers.
- (goto-char (point-min))
- (unless (search-forward "\n\n" nil t)
- (goto-char (point-max)))
- (setq beg (point))
- (while (setq entry (pop alist))
- (setq regexp (car entry))
- (goto-char beg)
- (while (re-search-forward regexp nil t)
- (let* ((start (and entry (match-beginning (nth 1 entry))))
- (end (and entry (match-end (nth 1 entry))))
- (from (match-beginning 0)))
- (when (and (or (eq t (nth 2 entry))
- (eval (nth 2 entry)))
- (not (gnus-button-in-region-p
- start end 'gnus-callback)))
- ;; That optional form returned non-nil, so we add the
- ;; button.
- (gnus-article-add-button
- start end 'gnus-button-push
- (car (push (set-marker (make-marker) from)
- gnus-button-marker-list))))))))))
-
- ;; Add buttons to the head of an article.
- (defun gnus-article-add-buttons-to-head ()
- "Add buttons to the head of the article."
- (interactive)
- (save-excursion
- (set-buffer gnus-article-buffer)
- (let ((buffer-read-only nil)
- (inhibit-point-motion-hooks t)
- (case-fold-search t)
- (alist gnus-header-button-alist)
- entry beg end)
- (nnheader-narrow-to-headers)
- (while alist
- ;; Each alist entry.
- (setq entry (car alist)
- alist (cdr alist))
- (goto-char (point-min))
- (while (re-search-forward (car entry) nil t)
- ;; Each header matching the entry.
- (setq beg (match-beginning 0))
- (setq end (or (and (re-search-forward "^[^ \t]" nil t)
- (match-beginning 0))
- (point-max)))
- (goto-char beg)
- (while (re-search-forward (nth 1 entry) end t)
- ;; Each match within a header.
- (let* ((entry (cdr entry))
- (start (match-beginning (nth 1 entry)))
- (end (match-end (nth 1 entry)))
- (form (nth 2 entry)))
- (goto-char (match-end 0))
- (when (eval form)
- (gnus-article-add-button
- start end (nth 3 entry)
- (buffer-substring (match-beginning (nth 4 entry))
- (match-end (nth 4 entry)))))))
- (goto-char end))))
- (widen)))
-
- ;;; External functions:
-
- (defun gnus-article-add-button (from to fun &optional data)
- "Create a button between FROM and TO with callback FUN and data DATA."
- (when gnus-article-button-face
- (gnus-overlay-put (gnus-make-overlay from to)
- 'face gnus-article-button-face))
- (gnus-add-text-properties
- from to
- (nconc (and gnus-article-mouse-face
- (list gnus-mouse-face-prop gnus-article-mouse-face))
- (list 'gnus-callback fun)
- (and data (list 'gnus-data data)))))
-
- ;;; Internal functions:
-
- (defun gnus-article-set-globals ()
- (save-excursion
- (set-buffer gnus-summary-buffer)
- (gnus-set-global-variables)))
-
- (defun gnus-signature-toggle (end)
- (save-excursion
- (set-buffer gnus-article-buffer)
- (let ((buffer-read-only nil)
- (inhibit-point-motion-hooks t))
- (if (get-text-property end 'invisible)
- (gnus-article-unhide-text end (point-max))
- (gnus-article-hide-text end (point-max) gnus-hidden-properties)))))
-
- (defun gnus-button-entry ()
- ;; Return the first entry in `gnus-button-alist' matching this place.
- (let ((alist gnus-button-alist)
- (entry nil))
- (while alist
- (setq entry (pop alist))
- (if (looking-at (car entry))
- (setq alist nil)
- (setq entry nil)))
- entry))
-
- (defun gnus-button-push (marker)
- ;; Push button starting at MARKER.
- (save-excursion
- (set-buffer gnus-article-buffer)
- (goto-char marker)
- (let* ((entry (gnus-button-entry))
- (inhibit-point-motion-hooks t)
- (fun (nth 3 entry))
- (args (mapcar (lambda (group)
- (let ((string (match-string group)))
- (gnus-set-text-properties
- 0 (length string) nil string)
- string))
- (nthcdr 4 entry))))
- (cond
- ((fboundp fun)
- (apply fun args))
- ((and (boundp fun)
- (fboundp (symbol-value fun)))
- (apply (symbol-value fun) args))
- (t
- (gnus-message 1 "You must define `%S' to use this button"
- (cons fun args)))))))
-
- (defun gnus-button-message-id (message-id)
- "Fetch MESSAGE-ID."
- (save-excursion
- (set-buffer gnus-summary-buffer)
- (gnus-summary-refer-article message-id)))
-
- (defun gnus-button-fetch-group (address)
- "Fetch GROUP specified by ADDRESS."
- (if (not (string-match "[:/]" address))
- ;; This is just a simple group url.
- (gnus-group-read-ephemeral-group address gnus-select-method)
- (if (not (string-match "^\\([^:/]+\\)\\(:\\([^/]+\\)/\\)?\\(.*\\)$"
- address))
- (error "Can't parse %s" address)
- (gnus-group-read-ephemeral-group
- (match-string 4 address)
- `(nntp ,(match-string 1 address)
- (nntp-address ,(match-string 1 address))
- (nntp-port-number ,(if (match-end 3)
- (match-string 3 address)
- "nntp")))))))
-
- (defun gnus-split-string (string pattern)
- "Return a list of substrings of STRING which are separated by PATTERN."
- (let (parts (start 0))
- (while (string-match pattern string start)
- (setq parts (cons (substring string start (match-beginning 0)) parts)
- start (match-end 0)))
- (nreverse (cons (substring string start) parts))))
-
- (defun gnus-url-parse-query-string (query &optional downcase)
- (let (retval pairs cur key val)
- (setq pairs (gnus-split-string query "&"))
- (while pairs
- (setq cur (car pairs)
- pairs (cdr pairs))
- (if (not (string-match "=" cur))
- nil ; Grace
- (setq key (gnus-url-unhex-string (substring cur 0 (match-beginning 0)))
- val (gnus-url-unhex-string (substring cur (match-end 0) nil)))
- (if downcase
- (setq key (downcase key)))
- (setq cur (assoc key retval))
- (if cur
- (setcdr cur (cons val (cdr cur)))
- (setq retval (cons (list key val) retval)))))
- retval))
-
- (defun gnus-url-unhex (x)
- (if (> x ?9)
- (if (>= x ?a)
- (+ 10 (- x ?a))
- (+ 10 (- x ?A)))
- (- x ?0)))
-
- (defun gnus-url-unhex-string (str &optional allow-newlines)
- "Remove %XXX embedded spaces, etc in a url.
- If optional second argument ALLOW-NEWLINES is non-nil, then allow the
- decoding of carriage returns and line feeds in the string, which is normally
- forbidden in URL encoding."
- (setq str (or str ""))
- (let ((tmp "")
- (case-fold-search t))
- (while (string-match "%[0-9a-f][0-9a-f]" str)
- (let* ((start (match-beginning 0))
- (ch1 (gnus-url-unhex (elt str (+ start 1))))
- (code (+ (* 16 ch1)
- (gnus-url-unhex (elt str (+ start 2))))))
- (setq tmp (concat
- tmp (substring str 0 start)
- (cond
- (allow-newlines
- (char-to-string code))
- ((or (= code ?\n) (= code ?\r))
- " ")
- (t (char-to-string code))))
- str (substring str (match-end 0)))))
- (setq tmp (concat tmp str))
- tmp))
-
- (defun gnus-url-mailto (url)
- ;; Send mail to someone
- (when (string-match "mailto:/*\\(.*\\)" url)
- (setq url (substring url (match-beginning 1) nil)))
- (let (to args source-url subject func)
- (if (string-match (regexp-quote "?") url)
- (setq to (gnus-url-unhex-string (substring url 0 (match-beginning 0)))
- args (gnus-url-parse-query-string
- (substring url (match-end 0) nil) t))
- (setq to (gnus-url-unhex-string url)))
- (setq args (cons (list "to" to) args)
- subject (cdr-safe (assoc "subject" args)))
- (message-mail)
- (while args
- (setq func (intern-soft (concat "message-goto-" (downcase (caar args)))))
- (if (fboundp func)
- (funcall func)
- (message-position-on-field (caar args)))
- (insert (mapconcat 'identity (cdar args) ", "))
- (setq args (cdr args)))
- (if subject
- (message-goto-body)
- (message-goto-subject))))
-
- (defun gnus-button-mailto (address)
- ;; Mail to ADDRESS.
- (set-buffer (gnus-copy-article-buffer))
- (message-reply address))
-
- (defun gnus-button-reply (address)
- ;; Reply to ADDRESS.
- (message-reply address))
-
- (defun gnus-button-url (address)
- "Browse ADDRESS."
- (funcall browse-url-browser-function address))
-
- (defun gnus-button-embedded-url (address)
- "Browse ADDRESS."
- (funcall browse-url-browser-function (gnus-strip-whitespace address)))
-
- ;;; Next/prev buttons in the article buffer.
-
- (defvar gnus-next-page-line-format "%{%(Next page...%)%}\n")
- (defvar gnus-prev-page-line-format "%{%(Previous page...%)%}\n")
-
- (defvar gnus-prev-page-map nil)
- (unless gnus-prev-page-map
- (setq gnus-prev-page-map (make-sparse-keymap))
- (define-key gnus-prev-page-map gnus-mouse-2 'gnus-button-prev-page)
- (define-key gnus-prev-page-map "\r" 'gnus-button-prev-page))
-
- (defun gnus-insert-prev-page-button ()
- (let ((buffer-read-only nil))
- (gnus-eval-format
- gnus-prev-page-line-format nil
- `(gnus-prev t local-map ,gnus-prev-page-map
- gnus-callback gnus-article-button-prev-page))))
-
- (defvar gnus-next-page-map nil)
- (unless gnus-next-page-map
- (setq gnus-next-page-map (make-keymap))
- (suppress-keymap gnus-prev-page-map)
- (define-key gnus-next-page-map gnus-mouse-2 'gnus-button-next-page)
- (define-key gnus-next-page-map "\r" 'gnus-button-next-page))
-
- (defun gnus-button-next-page ()
- "Go to the next page."
- (interactive)
- (let ((win (selected-window)))
- (select-window (get-buffer-window gnus-article-buffer t))
- (gnus-article-next-page)
- (select-window win)))
-
- (defun gnus-button-prev-page ()
- "Go to the prev page."
- (interactive)
- (let ((win (selected-window)))
- (select-window (get-buffer-window gnus-article-buffer t))
- (gnus-article-prev-page)
- (select-window win)))
-
- (defun gnus-insert-next-page-button ()
- (let ((buffer-read-only nil))
- (gnus-eval-format gnus-next-page-line-format nil
- `(gnus-next t local-map ,gnus-next-page-map
- gnus-callback
- gnus-article-button-next-page))))
-
- (defun gnus-article-button-next-page (arg)
- "Go to the next page."
- (interactive "P")
- (let ((win (selected-window)))
- (select-window (get-buffer-window gnus-article-buffer t))
- (gnus-article-next-page)
- (select-window win)))
-
- (defun gnus-article-button-prev-page (arg)
- "Go to the prev page."
- (interactive "P")
- (let ((win (selected-window)))
- (select-window (get-buffer-window gnus-article-buffer t))
- (gnus-article-prev-page)
- (select-window win)))
-
- (gnus-ems-redefine)
-
- (provide 'gnus-art)
-
- (run-hooks 'gnus-art-load-hook)
-
- ;;; gnus-art.el ends here
-