(eval-when-compile (require 'cl))
(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:" "^Expires:" "^Date-Received:" "^References:" "^Xref:" "^Lines:"
"^Relay-Version:" "^Message-ID:" "^Approved:" "^Sender:" "^Received:"
"^X-UIDL:" "^MIME-Version:" "^Return-Path:" "^In-Reply-To:"
"^Content-Type:" "^Content-Transfer-Encoding:" "^X-WebTV-Signature:"
"^X-MimeOLE:" "^X-MSMail-Priority:" "^X-Priority:" "^X-Loop:"
"^X-Authentication-Warning:" "^X-MIME-Autoconverted:" "^X-Face:"
"^X-Attribution:" "^X-Originating-IP:" "^Delivered-To:"
"^NNTP-[-A-Za-z]+:" "^Distribution:" "^X-no-archive:" "^X-Trace:"
"^X-Complaints-To:" "^X-NNTP-Posting-Host:" "^X-Orig.*:"
"^Abuse-Reports-To:" "^Cache-Post-Path:" "^X-Article-Creation-Date:"
"^X-Poster:" "^X-Mail2News-Path:" "^X-Server-Date:" "^X-Cache:"
"^Originator:" "^X-Problems-To:" "^X-Auth-User:" "^X-Post-Time:"
"^X-Admin:" "^X-UID:" "^Resent-[-A-Za-z]+:" "^X-Mailing-List:"
"^Precedence:" "^Original-[-A-Za-z]+:" "^X-filename:" "^X-Orcpt:"
"^Old-Received:" "^X-Pgp-Fingerprint:" "^X-Pgp-Key-Id:"
"^X-Pgp-Public-Key-Url:" "^X-Auth:" "^X-From-Line:"
"^X-Gnus-Article-Number:" "^X-Majordomo:" "^X-Url:" "^X-Sender:"
"^X-Mailing-List:" "^MBOX-Line" "^Priority:" "^X-Pgp" "^X400-[-A-Za-z]+:"
"^Status:")
"*All headers that start with 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:\\|X-Sent:"
"*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', `date', `long-to', and `many-to'."
: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)
(const :tag "Very long To header." long-to)
(const :tag "Multiple To headers." many-to))
: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 :value 200)
(number :value 4.0)
(function :value fun)
(regexp :value ".*"))
: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 :group 'gnus-article-washing)
(defcustom gnus-article-x-face-too-ugly nil
"Regexp matching posters whose face shouldn't be shown automatically."
:type '(choice regexp (const nil))
: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" (nth 2 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-string' for the possible values.
The variable can also be function, which should return a complete Date
header. The function is called with one argument, the time, which can
be fed to `format-time-string'."
:type '(choice string symbol)
: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\n" :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 'regexp)
(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 :value (fun) function)
(cons :value ("" "") regexp (repeat string))
(sexp :value nil))))
(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-show-traditional-method
(if (and (featurep 'mule)
(boundp 'enable-multibyte-characters))
(lambda ()
(if enable-multibyte-characters (gnus-mule-decode-article)))
(lambda ()))
"Function to decode ``localized RFC 822 messages''.
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"))
(((class color)
(background light))
(:foreground "red3"))
(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"))
(((class color)
(background light))
(:foreground "red4"))
(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" :italic t))
(((class color)
(background light))
(:foreground "MidnightBlue" :italic t))
(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)))))
(defvar article-lapsed-timer nil)
(defvar gnus-article-current-summary nil)
(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)
"Unhide 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))
(current-buffer)
(if (gnus-article-check-hidden-text 'headers arg)
(gnus-article-show-hidden-text 'boring-headers)
(unless gnus-inhibit-hiding
(save-excursion
(save-restriction
(let ((buffer-read-only nil)
(case-fold-search t)
(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)
beg)
(widen)
(goto-char (point-min))
(while (looking-at "From ")
(forward-line 1))
(unless (bobp)
(if delete
(delete-region (point-min) (point))
(gnus-article-hide-text (point-min) (point) props)))
(narrow-to-region
(point)
(if (search-forward "\n\n" nil t) (progn (forward-line -1) (point))
(point-max)))
(goto-char (point-min))
(while (re-search-forward "^[^ \t]*:" nil t)
(beginning-of-line)
(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)))
(if delete
(delete-region beg (point-max))
(gnus-article-hide-text-type beg (point-max) 'headers))
(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
((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)))
((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"))))
((eq elem 'long-to)
(let ((to (message-fetch-field "to")))
(when (> (length to) 1024)
(gnus-article-hide-header "to"))))
((eq elem 'many-to)
(let ((to-count 0))
(goto-char (point-min))
(while (re-search-forward "^to:" nil t)
(setq to-count (1+ to-count)))
(when (> to-count 1)
(while (> to-count 0)
(goto-char (point-min))
(save-restriction
(re-search-forward "^to:" nil nil to-count)
(forward-line -1)
(narrow-to-region (point) (point-max))
(gnus-article-hide-header "to"))
(setq to-count (1- to-count)))))))))))))
(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))))
(defun article-treat-dumbquotes ()
"Translate M******** sm*rtq**t*s into proper text."
(interactive)
(article-translate-characters "\221\222\223\223" "`'\"\""))
(defun article-translate-characters (from to)
"Translate all characters in the body of the article according to FROM and TO.
FROM is a string of characters to translate from; to is a string of
characters to translate to."
(save-excursion
(goto-char (point-min))
(when (search-forward "\n\n" nil t)
(let ((buffer-read-only nil)
(x (make-string 225 ?x))
(i -1))
(while (< (incf i) (length x))
(aset x i i))
(setq i 0)
(while (< i (length from))
(aset x (aref from i) (aref to i))
(incf i))
(translate-region (point) (point-max) x)))))
(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))))
(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
(when (process-status "article-x-face")
(delete-process "article-x-face"))
(let ((inhibit-point-motion-hooks t)
(case-fold-search t)
from last)
(save-restriction
(nnheader-narrow-to-headers)
(setq from (message-fetch-field "from"))
(goto-char (point-min))
(while (and gnus-article-x-face-command
(not last)
(or force
(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))))
(re-search-forward "^X-Face: " nil t))
(when (stringp gnus-article-x-face-command)
(setq last t))
(save-excursion
(let ((beg (point))
(end (1- (re-search-forward "^\\($\\|[^ \t]\\)" nil t))))
(if (symbolp gnus-article-x-face-command)
(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))
(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))
(while (search-forward "=09" nil t)
(replace-match " " t t))
(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))
(when (search-forward "\n-----BEGIN PGP SIGNED MESSAGE-----\n" nil t)
(delete-region (1+ (match-beginning 0)) (match-end 0))
(setq beg (point))
(and (search-forward "\n-----BEGIN PGP SIGNATURE-----\n" nil t)
(setq end (1+ (match-beginning 0)))
(delete-region
end
(if (search-forward "\n-----END PGP SIGNATURE-----\n" nil t)
(match-end 0)
(point-max))))
(when (and beg end)
(narrow-to-region beg end)
(goto-char (point-min))
(while (re-search-forward "^- " nil t)
(delete-region
(match-beginning 0) (match-end 0)))
(widen))
(gnus-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))
(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))
(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)
(goto-char (point-min))
(search-forward "\n\n" nil t)
(while (re-search-forward "^[ \t]+$" nil t)
(replace-match "" nil t))
(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))
(defun article-strip-all-blank-lines ()
"Strip all blank lines."
(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]*\n" nil t)
(replace-match "" t t)))))
(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)
(let ((inhibit-point-motion-hooks t))
(when (and (boundp 'mime::preview/content-list)
mime::preview/content-list)
(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)
(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))))
() (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)
(autoload 'w3-region "w3-display" "" 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 ((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 newline)
(when (and date (not (string= date "")))
(save-excursion
(save-restriction
(nnheader-narrow-to-headers)
(let ((buffer-read-only nil))
(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))
(delete-region (progn (beginning-of-line) (point))
(progn (end-of-line) (point)))
(beginning-of-line))
(goto-char (point-max))
(setq newline t))
(insert (article-make-date-line date type))
(beginning-of-line)
(when (looking-at "\\([^:]+\\): *\\(.*\\)$")
(put-text-property (match-beginning 1) (1+ (match-end 1))
'face bface)
(put-text-property (match-beginning 2) (match-end 2)
'face eface))
(when newline
(end-of-line)
(insert "\n"))))))))
(defun article-make-date-line (date type)
"Return a DATE line of TYPE."
(cond
((eq type 'local)
(concat "Date: " (condition-case ()
(timezone-make-date-arpa-standard date)
(error date))))
((eq type 'ut)
(concat "Date: "
(condition-case ()
(timezone-make-date-arpa-standard date nil "UT")
(error date))))
((eq type 'original)
(concat "Date: " date))
((eq type 'user)
(if (gnus-functionp gnus-article-time-format)
(funcall
gnus-article-time-format
(ignore-errors
(gnus-encode-date
(timezone-make-date-arpa-standard
date nil "UT"))))
(concat
"Date: "
(format-time-string gnus-article-time-format
(ignore-errors
(gnus-encode-date
(timezone-make-date-arpa-standard
date nil "UT")))))))
((eq type 'iso8601)
(concat
"Date: "
(format-time-string "%Y%M%DT%h%m%s"
(ignore-errors
(gnus-encode-date
(timezone-make-date-arpa-standard
date nil "UT"))))))
((eq type 'lapsed)
(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")
((zerop sec)
"X-Sent: Now")
(t
(concat
"X-Sent: "
(mapconcat
(lambda (unit)
(if (zerop (setq num (ffloor (/ sec (cdr unit)))))
""
(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 (> real-sec 0)
" ago"
" in the future"))))))
(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-update-date-lapsed ()
"Function to be run from a timer to update the lapsed time line."
(let (deactivate-mark)
(save-excursion
(ignore-errors
(when (gnus-buffer-live-p gnus-article-buffer)
(set-buffer gnus-article-buffer)
(goto-char (point-min))
(when (re-search-forward "^X-Sent:" nil t)
(article-date-lapsed t)))))))
(defun gnus-start-date-timer (&optional n)
"Start a timer to update the X-Sent header in the article buffers.
The numerical prefix says how frequently (in seconds) the function
is to run."
(interactive "p")
(unless n
(setq n 1))
(gnus-stop-date-timer)
(setq article-lapsed-timer
(nnheader-run-at-time 1 n 'article-update-date-lapsed)))
(defun gnus-stop-date-timer ()
"Stop the X-Sent timer."
(interactive)
(when article-lapsed-timer
(nnheader-cancel-timer article-lapsed-timer)
(setq article-lapsed-timer nil)))
(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-date-iso8601 (&optional highlight)
"Convert the current article date to ISO8601."
(interactive (list t))
(article-date-ut 'iso8601 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)
(defun gnus-article-save (save-buffer file &optional num)
"Save the currently selected article."
(unless gnus-save-all-headers
(let ((gnus-visible-headers
(or gnus-saved-headers gnus-visible-headers))
(gnus-article-buffer save-buffer))
(save-excursion
(set-buffer save-buffer)
(article-hide-headers 1 t))))
(save-window-excursion
(if (not gnus-default-article-saver)
(error "No default saver is defined")
(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))) (set-buffer gnus-article-current-summary)
(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
(cond
((null split-name)
(read-file-name
(concat prompt " (default "
(file-name-nondirectory default-name) ") ")
(file-name-directory default-name)
default-name))
((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))
((= 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)))
(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)))))))
(gnus-make-directory (file-name-directory file))
(when (file-directory-p file)
(setq file (concat (file-name-as-directory file)
(file-name-nondirectory default-name))))
(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'."
(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))))
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'."
(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)))))
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'."
(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))))
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'."
(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'."
(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))))
filename)
(defun gnus-summary-save-in-pipe (&optional command)
"Pipe this article to subprocess."
(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))
(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-strip-all-blank-lines
article-date-local
article-date-iso8601
article-date-original
article-date-ut
article-date-user
article-date-lapsed
article-emphasize
article-treat-dumbquotes
(article-show-all . gnus-article-show-all-headers))))
(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]
["Send a bug report" gnus-bug 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 (boundp 'gnus-summary-post-menu)
(define-key gnus-article-mode-map [menu-bar post]
(cons "Post" gnus-summary-post-menu)))
(gnus-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))
(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)
(make-local-variable 'gnus-page-broken)
(make-local-variable 'gnus-button-marker-list)
(make-local-variable 'gnus-article-current-summary)
(gnus-set-default-directory)
(buffer-disable-undo (current-buffer))
(setq buffer-read-only t)
(set-syntax-table gnus-article-mode-syntax-table)
(gnus-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)
(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)))
(save-excursion
(set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
(buffer-disable-undo (current-buffer))
(setq major-mode 'gnus-original-article-mode)
(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)
(unless (eq major-mode 'gnus-article-mode)
(gnus-article-mode))
(current-buffer))
(save-excursion
(set-buffer (gnus-get-buffer-create name))
(gnus-article-mode)
(make-local-variable 'gnus-summary-buffer)
(current-buffer)))))
(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
(unless (eq major-mode 'gnus-summary-mode)
(set-buffer gnus-summary-buffer))
(setq gnus-summary-buffer (current-buffer))
(let* ((gnus-article (if header (mail-header-number header) article))
(summary-buffer (current-buffer))
(gnus-tmp-internal-hook gnus-article-internal-prepare-hook)
(group gnus-newsgroup-name)
result)
(save-excursion
(gnus-article-setup-buffer)
(set-buffer gnus-article-buffer)
(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))))
(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)
(if (eq (gnus-article-mark article) gnus-undownloaded-mark)
(progn
(gnus-summary-set-agent-mark article)
(message "Message marked for downloading"))
(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)
(push article gnus-newsgroup-history)
(setq gnus-last-article gnus-current-article
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))
(when (and (numberp article)
(not (eq article gnus-current-article)))
(save-excursion
(set-buffer summary-buffer)
(push article gnus-newsgroup-history)
(setq gnus-last-article gnus-current-article
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-goto-subject gnus-current-article)
(when (gnus-summary-show-thread)
(gnus-summary-goto-subject gnus-current-article))
(gnus-run-hooks 'gnus-mark-article-hook)
(gnus-set-mode-line 'summary)
(when (gnus-visual-p 'article-highlight 'highlight)
(gnus-run-hooks 'gnus-visual-mark-article-hook))
(gnus-set-global-variables)
(setq gnus-have-all-headers
(or all-headers gnus-show-all-headers))))
(when (or (numberp article)
(stringp article))
(let (buffer-read-only)
(gnus-run-hooks 'gnus-tmp-internal-hook)
(gnus-run-hooks 'gnus-article-prepare-hook)
(if gnus-show-mime
(if (or (not gnus-strict-mime)
(gnus-fetch-field "Mime-Version"))
(let ((coding-system-for-write 'binary)
(coding-system-for-read 'binary))
(funcall gnus-show-mime-method))
(funcall gnus-decode-encoded-word-method))
(funcall gnus-show-traditional-method))
(gnus-run-hooks 'gnus-article-display-hook))
(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))
(search-forward "\n\n" nil t)
(set-window-point (get-buffer-window (current-buffer)) (point))
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 ? )))))
(fset 'gnus-article-hide-headers-if-wanted 'gnus-article-maybe-hide-headers)
(defun gnus-article-maybe-hide-headers ()
"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)))
(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)
(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)
(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)))))
(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) (eobp)))
(if (or (not gnus-page-broken)
(save-excursion
(save-restriction
(widen) (forward-line 1) (eobp)))) t (gnus-narrow-to-page 1) nil)
(let ((scroll-in-place nil))
(condition-case ()
(scroll-up lines)
(end-of-buffer
(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)))) (progn
(gnus-narrow-to-page -1) (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) (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)
(gnus-summary-position-point)))
(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-article-current-summary '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-article-current-summary '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"))
(up-to-top
'("n" "Gn" "p" "Gp"))
keys new-sum-point)
(save-excursion
(set-buffer gnus-article-current-summary)
(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-article-current-summary 'norecord)
(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-article-current-summary))
(call-interactively func)
(setq new-sum-point (point)))
(when (member keys nosave-but-article)
(pop-to-buffer gnus-article-buffer 'norecord)))
(let ((obuf (current-buffer))
(owin (current-window-configuration))
(opoint (point))
(summary gnus-article-current-summary)
func in-buffer selected)
(if not-restore-window
(pop-to-buffer summary 'norecord)
(switch-to-buffer summary 'norecord))
(setq in-buffer (current-buffer))
(if (setq func (let (gnus-pick-mode)
(lookup-key (current-local-map) keys)))
(progn
(call-interactively func)
(setq new-sum-point (point)))
(ding))
(when (eq in-buffer (current-buffer))
(setq selected (gnus-summary-select-article))
(set-buffer obuf)
(unless not-restore-window
(set-window-configuration owin))
(unless (or (not (eq selected 'old)) (member keys up-to-top))
(set-window-point (get-buffer-window (current-buffer))
opoint))
(let ((win (get-buffer-window gnus-article-current-summary)))
(when win
(set-window-point win new-sum-point))))))))
(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 (append (gnus-article-hidden-arg) (list '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 highlighting is requested."
(when (gnus-visual-p 'article-highlight 'highlight)
(gnus-article-highlight-some)))
(defun gnus-check-group-server ()
(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)))
(defun gnus-request-article-this-buffer (article group)
"Get an article and insert it into this buffer."
(let (do-update-line sparse-header)
(prog1
(save-excursion
(erase-buffer)
(gnus-kill-all-overlays)
(setq group (or group gnus-newsgroup-name))
(when (stringp article)
(let ((gnus-override-method gnus-refer-article-method))
(gnus-read-header article)))
(when (and (numberp article)
gnus-summary-buffer
(get-buffer gnus-summary-buffer)
(gnus-buffer-exists-p 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)
(setq do-update-line article)
(setq article (mail-header-id header))
(let ((gnus-override-method gnus-refer-article-method))
(setq sparse-header (gnus-read-header article)))
(setq gnus-newsgroup-sparse
(delq article gnus-newsgroup-sparse)))
((vectorp header)
(setq article (mail-header-id header)))
(t
(setq article 'pseudo)
(gnus-request-pseudo-article header))))
(let ((method (gnus-find-method-for-group
gnus-newsgroup-name)))
(when (and (eq (car method) 'nneething)
(vectorp header))
(let ((dir (concat
(file-name-as-directory
(or (cadr (assq 'nneething-address method))
(nth 1 method)))
(mail-header-subject header))))
(when (file-directory-p dir)
(setq article 'nneething)
(gnus-group-enter-directory dir))))))))
(cond
((and (numberp article)
gnus-summary-buffer
(get-buffer gnus-summary-buffer)
(gnus-buffer-exists-p gnus-summary-buffer)
(eq (cdr (save-excursion
(set-buffer gnus-summary-buffer)
(assq article gnus-newsgroup-reads)))
gnus-canceled-mark))
nil)
((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)
((and gnus-keep-backlog
(gnus-backlog-request-article group article (current-buffer)))
'article)
((gnus-async-request-fetched-article group article (current-buffer))
(gnus-async-prefetch-next group article gnus-summary-buffer)
(when (and (numberp article) gnus-keep-backlog)
(gnus-backlog-enter-article group article (current-buffer)))
'article)
((and gnus-use-cache
(numberp article)
(gnus-cache-request-article article group))
'article)
((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)
(gnus-check-group-server)
(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)))
(t article)))
(setq gnus-article-current-summary gnus-summary-buffer)
(when (and (get-buffer gnus-article-buffer)
(equal (buffer-name (current-buffer))
(buffer-name (get-buffer gnus-article-buffer))))
(save-excursion
(if (get-buffer gnus-original-article-buffer)
(set-buffer gnus-original-article-buffer)
(set-buffer (gnus-get-buffer-create gnus-original-article-buffer))
(buffer-disable-undo (current-buffer))
(setq major-mode 'gnus-original-article-mode)
(setq buffer-read-only t))
(let (buffer-read-only)
(erase-buffer)
(insert-buffer-substring gnus-article-buffer))
(setq gnus-original-article (cons group article))))
(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 sparse-header)
(gnus-summary-goto-subject do-update-line nil t)
(set-window-point (get-buffer-window (current-buffer) t)
(point))
(set-buffer buf))))))
(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)
(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)
(gnus-run-hooks 'text-mode-hook '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-date-original)
(gnus-article-edit-article
`(lambda (no-highlight)
(gnus-summary-edit-article-done
,(or (mail-header-references gnus-current-headers) "")
,(gnus-group-read-only-p) ,gnus-summary-buffer no-highlight))))
(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-article-delete-text-of-type 'annotation)
(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 (&optional arg)
"Update the article edits and exit."
(interactive "P")
(save-excursion
(save-restriction
(widen)
(goto-char (point-min))
(when (search-forward "\n\n" nil 1)
(let ((lines (count-lines (point) (point-max)))
(length (- (point-max) (point)))
(case-fold-search t)
(body (copy-marker (point))))
(goto-char (point-min))
(when (re-search-forward "^content-length:[ \t]\\([0-9]+\\)" body t)
(delete-region (match-beginning 1) (match-end 1))
(insert (number-to-string length)))
(goto-char (point-min))
(when (re-search-forward
"^x-content-length:[ \t]\\([0-9]+\\)" body t)
(delete-region (match-beginning 1) (match-end 1))
(insert (number-to-string length)))
(goto-char (point-min))
(when (re-search-forward "^lines:[ \t]\\([0-9]+\\)" body t)
(delete-region (match-beginning 1) (match-end 1))
(insert (number-to-string lines)))))))
(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 arg)))
(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)
(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)
(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)))
(save-excursion
(when (get-buffer gnus-original-article-buffer)
(set-buffer gnus-original-article-buffer)
(setq gnus-original-article nil)))
(set-window-configuration winconf)
(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"))))
(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:[>\n\t ]*?\\)?news:[>\n\t ]*\\([^>\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:[>\n\t ]*\\)?news:[>\n\t ]*\\(//\\)?\\([^>\n\t ]*\\)>\\)"
1 t
gnus-button-fetch-group 4)
("\\bnews:\\(//\\)?\\([^'\">\n\t ]+\\)" 0 t gnus-button-fetch-group 2)
("\\bin\\( +article\\| +message\\)? +\\(<\\([^\n @<>]+@[^\n @<>]+\\)>\\)" 2
t gnus-button-message-id 3)
("\\(<URL: *\\)mailto: *\\([^> \n\t]+\\)>" 0 t gnus-url-mailto 2)
("mailto:\\([a-zA-Z.-@_+0-9%]+\\)" 0 t gnus-url-mailto 1)
("\\bmailto:\\([^ \n\t]+\\)" 0 t gnus-url-mailto 1)
("<URL: *\\([^>]*\\)>" 0 t gnus-button-embedded-url 1)
(,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)
(defvar gnus-button-last nil)
(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)))
(goto-char pos)
(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))
(when (get-text-property (point) 'gnus-callback)
(goto-char (funcall function (point) 'gnus-callback nil limit)))
(gnus-goto-char (funcall function (point) 'gnus-callback nil limit))
(when (and backward (not (get-text-property (point) 'gnus-callback)))
(goto-char (funcall function (point) 'gnus-callback nil limit)))
(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)
(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)))
(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)))
(gnus-article-add-button
start end 'gnus-button-push
(car (push (set-marker (make-marker) from)
gnus-button-marker-list))))))))))
(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
(setq entry (car alist)
alist (cdr alist))
(goto-char (point-min))
(while (re-search-forward (car entry) nil t)
(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)
(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)))
(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)))))
(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 ()
(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)
(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))
(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-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 (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)
(when (string-match "mailto:/*\\(.*\\)" url)
(setq url (substring url (match-beginning 1) nil)))
(let (to args 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)
(set-buffer (gnus-copy-article-buffer))
(message-reply address))
(defun gnus-button-reply (address)
(message-reply address))
(defun gnus-button-url (address)
"Browse ADDRESS."
(browse-url address))
(defun gnus-button-embedded-url (address)
"Browse ADDRESS."
(browse-url (gnus-strip-whitespace address)))
(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
gnus-type annotation))))
(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
gnus-type annotation))))
(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)