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w3m.el
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;;; w3m.el --- an Emacs interface to w3m -*- coding: utf-8; lexical-binding: t -*-
;; Copyright (C) 2000-2021 TSUCHIYA Masatoshi <[email protected]>
;; Authors: TSUCHIYA Masatoshi <[email protected]>,
;; Shun-ichi GOTO <[email protected]>,
;; Satoru Takabayashi <[email protected]>,
;; Hideyuki SHIRAI <[email protected]>,
;; Keisuke Nishida <[email protected]>,
;; Yuuichi Teranishi <[email protected]>,
;; Akihiro Arisawa <[email protected]>,
;; Katsumi Yamaoka <[email protected]>,
;; Tsuyoshi CHO <[email protected]>
;; Keywords: w3m, WWW, hypermedia
;; This file is the main part of emacs-w3m.
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; Emacs-w3m is an Emacs interface to the w3m program. For more
;; detail about w3m, see:
;;
;; http://w3m.sourceforge.net/
;;; How to install:
;; See the README file in any case. We also recommend you check
;; whether a newer version of w3m is released.
;;
;; The outline of installation is: run the `configure' script and type
;; `make install' in the top directory of the emacs-w3m distribution.
;;; Code:
(require 'cl-lib) ;; cl-decf, cl-incf, cl-labels, cl-remove-if
(require 'w3m-util)
(require 'w3m-proc)
(defvar w3m-use-tab-line)
(defvar tab-line-exclude-modes) ;; 27.1
;; `w3m-use-tab-line' refers to this variable.
(eval-and-compile
(defcustom w3m-use-tab t
"Use emacs-w3m in \"Tabbed\" display mode.
This variable is now DEPRECATED! Please use `w3m-display-mode'
instead. When non-nil, emacs-w3m will make a reasonable effort to
display all its buffers in a single window, which has a clickable
tab bar along the top.
See also `w3m-use-tab-line' and `w3m-use-tab-menubar'."
:group 'w3m
:type 'boolean
:set (lambda (symbol value)
(prog1
(custom-set-default symbol value)
(when (boundp 'w3m-use-tab-line)
;; w3m.elc has already been loaded
;; or `w3m-use-tab-line' has already been set.
(if (and value w3m-use-tab-line)
(progn
(require 'tab-line nil t)
(when (boundp 'tab-line-exclude-modes)
(add-to-list 'tab-line-exclude-modes 'w3m-mode)))
(when (boundp 'tab-line-exclude-modes)
(setq tab-line-exclude-modes
(delq 'w3m-mode tab-line-exclude-modes)))))))))
;; Why the two variable `w3m-select-buffer-hook' and `w3m-use-tab-line'
;; are here is because w3m-ems.el uses.
(defcustom w3m-select-buffer-hook nil
"Hook run when a different emacs-w3m buffer is selected."
:group 'w3m
:type 'hook)
(eval-and-compile
(defcustom w3m-use-tab-line (boundp 'tab-line-format)
"Use `tab-line-format' instead of `header-line-format' to display tabs.
See also `w3m-use-tab'."
:group 'w3m
:type 'boolean
:set (lambda (symbol value)
(prog1
(setq value (and (boundp 'tab-line-format) value))
(if (boundp symbol)
(unless (equal (symbol-value symbol) value)
(custom-set-default symbol value)
(when (featurep 'w3m-ems)
(defvar w3m-tab-separator-map)
(setcar (cadr w3m-tab-separator-map)
(if value 'tab-line 'header-line))
(let ((cur (cons (selected-frame) (selected-window)))
window)
(dolist (buffer (let (w3m-fb-mode) (ignore w3m-fb-mode)
(w3m-list-buffers t)))
(with-current-buffer buffer
(w3m-setup-tab-line)
(w3m-tab-make-keymap t)
;; Redisplay window in order to redraw tabs
;; (`force-mode-line-update', `redraw-display', etc.
;; didn't work but is this really necessary?).
(when (setq window
(get-buffer-window buffer 'visible))
(unwind-protect
(progn
(select-frame (window-frame window))
(select-window window t)
(with-temp-buffer
(switch-to-buffer (current-buffer))
(sit-for 0)))
(select-frame (car cur))
(select-window (cdr cur)))))))))
(custom-set-default symbol value))
(if (and value w3m-use-tab)
(progn
(require 'tab-line)
(when (boundp 'tab-line-exclude-modes)
(add-to-list 'tab-line-exclude-modes 'w3m-mode)))
(when (boundp 'tab-line-exclude-modes)
(setq tab-line-exclude-modes
(delq 'w3m-mode tab-line-exclude-modes))))))))
(eval-and-compile (require 'w3m-ems))
(add-hook 'w3m-select-buffer-hook #'w3m-set-buffer-seen)
(require 'bookmark-w3m)
(require 'w3m-fb)
(require 'w3m-hist)
(require 'timezone)
(require 'image-mode)
;; Add-on programs:
(eval-and-compile
(autoload 'w3m-bookmark-view "w3m-bookmark"
"Display the bookmark" t)
(autoload 'w3m-bookmark-view-new-session "w3m-bookmark"
"Display the bookmark on a new session" t)
(autoload 'w3m-bookmark-add-this-url "w3m-bookmark"
"Add a link under point to the bookmark." t)
(autoload 'w3m-bookmark-add-current-url "w3m-bookmark"
"Add a url of the current page to the bookmark." t)
(autoload 'w3m-bookmark-add-all-urls "w3m-bookmark"
"Add urls of all pages being visited to the bookmark." t)
(autoload 'w3m-bookmark-add "w3m-bookmark" "Add URL to bookmark.")
(autoload 'w3m-bookmark-iterator "w3m-bookmark"
"Iteration bookmark groups/entries.")
(autoload 'w3m-search "w3m-search"
"Search a word using search engines." t)
(autoload 'w3m-search-new-session "w3m-search"
"Search a word using search engines in a new session." t)
(autoload 'w3m-search-uri-replace "w3m-search")
(autoload 'w3m-weather "w3m-weather"
"Display a weather report." t)
(autoload 'w3m-about-weather "w3m-weather")
(autoload 'w3m-antenna "w3m-antenna"
"Report changes of web sites." t)
(autoload 'w3m-antenna-add-current-url "w3m-antenna"
"Add a link address of the current page to the antenna database." t)
(autoload 'w3m-about-antenna "w3m-antenna")
(autoload 'w3m-dtree "w3m-dtree"
"Display a directory tree." t)
(autoload 'w3m-about-dtree "w3m-dtree")
(autoload 'w3m-namazu "w3m-namazu"
"Search files with Namazu." t)
(autoload 'w3m-about-namazu "w3m-namazu")
(autoload 'w3m-perldoc "w3m-perldoc"
"View Perl documents" t)
(autoload 'w3m-about-perldoc "w3m-perldoc")
(autoload 'w3m-fontify-forms "w3m-form")
(autoload 'w3m-fontify-textareas "w3m-form")
(autoload 'w3m-form-textarea-file-cleanup "w3m-form")
(autoload 'w3m-form-textarea-files-remove "w3m-form")
(autoload 'w3m-form-kill-buffer "w3m-form")
(autoload 'w3m-form-set-number "w3m-form")
(autoload 'w3m-form-expand-form "w3m-form")
(autoload 'w3m-form-unexpand-form "w3m-form")
(autoload 'w3m-form-make-form-data "w3m-form")
(autoload 'w3m-filter "w3m-filter")
(autoload 'w3m-toggle-filtering "w3m-filter"
"Toggle whether to modify html source by the filters before rendering." t)
(autoload 'w3m-setup-tab-menu "w3m-tabmenu")
(autoload 'w3m-setup-bookmark-menu "w3m-bookmark")
(autoload 'w3m-switch-buffer "w3m-tabmenu")
(autoload 'w3m-cookie-set "w3m-cookie")
(autoload 'w3m-cookie-get "w3m-cookie")
(autoload 'w3m-cookie "w3m-cookie")
(autoload 'w3m-about-cookie "w3m-cookie")
(autoload 'w3m-cookie-shutdown "w3m-cookie" nil t)
(autoload 'report-emacs-w3m-bug "w3m-bug" nil t)
(autoload 'w3m-replace-symbol "w3m-symbol" nil t)
(autoload 'w3m-mail "w3m-mail" nil t)
(autoload 'w3m-lnum-mode "w3m-lnum" nil t)
(autoload 'w3m-lnum-follow "w3m-lnum" nil t)
(autoload 'w3m-lnum-goto "w3m-lnum" nil t)
(autoload 'w3m-lnum-universal "w3m-lnum" nil t)
(autoload 'w3m-lnum-toggle-inline-image "w3m-lnum" nil t)
(autoload 'w3m-lnum-view-image "w3m-lnum" nil t)
(autoload 'w3m-lnum-external-view-this-url "w3m-lnum" nil t)
(autoload 'w3m-lnum-edit-this-url "w3m-lnum" nil t)
(autoload 'w3m-lnum-print-this-url "w3m-lnum" nil t)
(autoload 'w3m-lnum-download-this-url "w3m-lnum" nil t)
(autoload 'w3m-lnum-bookmark-add-this-url "w3m-lnum" nil t)
(autoload 'w3m-lnum-zoom-in-image "w3m-lnum" nil t)
(autoload 'w3m-lnum-zoom-out-image "w3m-lnum" nil t)
(autoload 'w3m-session-select "w3m-session"
"Select session from session list." t)
(autoload 'w3m-session-save "w3m-session"
"Save list of displayed session." t)
(autoload 'w3m-setup-session-menu "w3m-session")
(autoload 'w3m-session-automatic-save "w3m-session")
(autoload 'w3m-session-deleted-save "w3m-session")
(autoload 'w3m-session-last-autosave-session "w3m-session")
(autoload 'w3m-session-goto-session "w3m-session")
(autoload 'w3m-session-crash-recovery-save "w3m-session")
(autoload 'w3m-session-last-crashed-session "w3m-session")
(autoload 'w3m-save-buffer "w3m-save"
"Save the current page and its image data locally."))
;; Avoid byte-compile warnings.
(declare-function doc-view-mode "doc-view")
(declare-function doc-view-mode-p "doc-view" (type))
(declare-function image-backward-hscroll "image-mode" (&optional n))
(declare-function image-bol "image-mode" (arg))
(declare-function image-eol "image-mode" (arg))
(declare-function image-forward-hscroll "image-mode" (&optional n))
(declare-function image-mode-setup-winprops "image-mode")
(declare-function image-scroll-down "image-mode" (&optional n))
(declare-function image-scroll-up "image-mode" (&optional n))
(declare-function quit-window "window" (&optional kill window))
(declare-function rfc2368-parse-mailto-url "rfc2368" (mailto-url)) ;; Emacs<=27
(declare-function rfc6068-parse-mailto-url "rfc6068" (mailto-url)) ;; Emacs>=28
(declare-function w3m-search-escape-query-string "w3m-search"
(str &optional coding))
(declare-function widget-convert-button "wid-edit" (type from to &rest args))
(declare-function widget-forward "wid-edit" (arg))
(declare-function widget-get "wid-edit" (widget property))
(declare-function zone-call "zone" (program &optional timeout))
(defvar bidi-paragraph-direction)
(defvar doc-view-mode-map)
(defvar w3m-bookmark-mode)
(defvar w3m-bookmark-menu-items)
(defvar w3m-bookmark-menu-items-pre)
(defvar w3m-tab-menubar-make-items-preitems)
(defvar w3m-search-engine-alist)
(defvar w3m-session-menu-items-pre)
(defvar w3m-session-menu-items)
;; The version is decided by the final revision 1.1717 which was
;; hosted by the CVS repository.
(defconst emacs-w3m-version
"1.4.632"
"Version number of this package.
Not to be confused with `w3m-version'.")
(defgroup w3m nil
"Emacs-w3m - the web browser of choice."
:group 'hypermedia)
(defgroup w3m-face nil
"Faces used for emacs-w3m."
:group 'w3m
:prefix "w3m-")
(defcustom w3m-command nil
"Name of the executable file of the w3m command.
You normally don't have to specify the value, since emacs-w3m looks
for the existing commands in order of w3m, w3mmee and w3m-m17n in the
`exec-path' directories in order if it is nil in the beginning.
If you want to use the other w3m command, specify the value of this
variable explicitly in the .emacs file or customize the value and save
it. In this case, you need to restart Emacs and emacs-w3m. That is,
there is currently no way to apply the changing of the w3m command to
all the emacs-w3m programs safely after loading the w3m.elc module."
:group 'w3m
:type '(radio (const :format "Not specified " nil)
(string :format "Command: %v")))
(defcustom w3m-new-session-last nil
"Should new tabs be positioned at end of the list.
When NIL, new tabs will be positioned after the current one."
:group 'w3m
:type 'boolean)
(defcustom w3m-display-ins-del 'auto
"Value of `display_ins_del' option."
:group 'w3m
:type '(radio (const :format "Delect automatically" auto)
(const :format "Use fontify\n" fontify)
(const :format "Use tag" tag)
(const :format "No have option" nil)))
(defvar w3m-type nil
"Type of the w3m command.
The valid values include `w3m', `w3mmee', and `w3m-m17n'.")
(defvar w3m-compile-options nil
"Compile options that the w3m command was built with.")
(defvar w3m-version nil
"Version string of the external w3m command.
Not to be confused with `emacs-w3m-version'.")
;; Set w3m-command, w3m-type, w3m-version and w3m-compile-options
(if noninteractive ;; Don't call the external command when compiling.
(unless w3m-command
(setq w3m-command "w3m"))
(when (or (null w3m-command)
(null w3m-type)
(null w3m-version)
(null w3m-compile-options))
(let ((command (or w3m-command
(w3m-which-command "w3m")
(w3m-which-command "w3mmee")
(w3m-which-command "w3m-m17n"))))
(when command
(setq w3m-command command)
(with-temp-buffer
(call-process command nil t nil "-version")
(goto-char (point-min))
(when (re-search-forward "version \\(w3m/0\\.[3-9]\
\\(?:\\.[0-9\\]\\)*\\(?:rc[0-9]+\\)?\
\\(?:-stable\\|\\(?:\\+cvs\\(?:-[0-9]+\\.[0-9]+\\)?\\)\\)?\
\\(?:-inu\\|\\(-m17n\\|\\(\\+mee\\)\\)\\)?[^,]*\\)" nil t)
(setq w3m-version (match-string 1))
(setq w3m-type
(cond
((match-beginning 3) 'w3mmee)
((match-beginning 2) 'w3m-m17n)
((match-beginning 1) 'w3m)
(t 'other))))
(when (re-search-forward "options +" nil t)
(setq w3m-compile-options
(or (split-string (buffer-substring (match-end 0)
(point-at-eol))
",")
(list nil)))
(when (member "m17n" w3m-compile-options)
(setq w3m-type 'w3m-m17n))))))))
(when (not (stringp w3m-command))
(error "\
Install w3m command in `exec-path' or set `w3m-command' variable correctly"))
(defcustom w3m-user-agent (concat "Emacs-w3m/" emacs-w3m-version
" " w3m-version)
"String used for the User-Agent field. See also `w3m-add-user-agent'."
:group 'w3m
:type 'string)
(defcustom w3m-add-user-agent t
"Non-nil means add the User-Agent field to the request header.
The value of `w3m-user-agent' is used for the field body."
:group 'w3m
:type 'boolean)
(defvar w3m-user-agent-default-alist
`(("Emacs-w3m (user default)" . ,w3m-user-agent)
("Emacs-w3m (package default)"
. ,(concat "Emacs-w3m/" emacs-w3m-version " " w3m-version)))
"An default alist of user agent strings.
This is used when offering the user the opportunity to change user
agent strings. This should normally not be modified; instead modify
`w3m-user-agent-alist'.")
(defcustom w3m-user-agent-alist
'(("Android" . "Mozilla/5.0 (Linux; Android 11) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.120 Mobile Safari/537.36")
("Apple iOS" . "Mozilla/5.0 (iPhone; CPU iPhone OS 14_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.1 Mobile/15E148 Safari/604.1")
("Linux Chrome" . "Mozilla/5.0 (X11; CrOS armv7l 9592.96.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.114 Safari/537.36")
("Linux Firefox" . "Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0")
("Mac OS Chrome" . "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.75 Safari/537.36")
("Mac OS Firefox" . "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:56.0) Gecko/20100101 Firefox/56.0")
("Mac OS Opera" . "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.78 Safari/537.36 OPR/47.0.2631.55")
("Mac OS Safari" . "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/604.3.5 (KHTML, like Gecko) Version/11.0.1 Safari/604.3.5")
("Windows Chrome" . "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.9 Safari/537.36")
("Windows Edge" . "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36 Edge/15.15063")
("Windows Explorer" . "Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko")
("Windows Firefox" . "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:56.0) Gecko/20100101 Firefox/56.0")
("Windows Opera" . "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36 OPR/48.0.2685.52")
("Windows Safari" . "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.20.25 (KHTML, like Gecko) Version/5.0.4 Safari/533.20.27"))
"An alist of user agent strings.
Each entry should be a cons of a short descriptive string and
the user agent string."
:group 'w3m
:type '(repeat (cons :format "%v" :indent 2
(string :tag "Short Description")
(string :tag "User Agent string"))))
(defcustom w3m-user-agent-site-specific-alist nil
"An alist of user-agent strings to be used for specific URLs.
Each entry should be a CONS, whose CAR is a regexp of the URLs
to be covered by the rule, and whose CDR is either a user-agent
string to be used or a string matching a CAR of variable
`w3m-user-agent-alist'."
:group 'w3m
:type '(repeat (cons :format "%v" :indent 2
(string :tag "URL regexp")
(string :tag "User Agent string"))))
(defcustom w3m-language (if (equal #1="Japanese" current-language-environment)
#1#)
"Your preferred language used in emacs-w3m sessions."
:group 'w3m
:type '(radio
:value-to-internal (lambda (_widget value)
(if (and (stringp value)
(let ((case-fold-search t))
(string-match "\\`japan" value)))
"Japanese"))
:value-to-external (lambda (_widget value)
(if (equal value "Japanese") "Japanese"))
(const :format "%v " "Japanese")
(const :tag "Other" nil)))
(defcustom w3m-command-arguments
(if (eq w3m-type 'w3mmee) '("-o" "concurrent=0" "-F") nil)
"List of the default arguments passed to the w3m command.
See also `w3m-command-arguments-alist'."
:group 'w3m
:type '(repeat (string :format "Argument: %v")))
(defcustom w3m-command-arguments-alist nil
"Alist of regexps matching urls and additional arguments passed to w3m.
A typical usage of this variable is to specify whether to use the proxy
server for the particular hosts. The first match made will be used.
Here is an example of how to set this variable:
(setq w3m-command-arguments-alist
\\='(;; Don't use the proxy server to visit local web pages.
(\"\\\\`http://\\\\(?:[^/]*\\\\.\\\\)*your-company\\\\.com\\\\(?:/\\\\|\\\\'\\\\)\"
\"-no-proxy\")
;; Use the proxy server to visit any foreign urls.
(\"\"
\"-o\" \"http_proxy=http://proxy.your-company.com:8080/\")))
Where the first element matches the url that the scheme is \"http\" and
the hostname is either \"your-company.com\" or a name ended with
\".your-company.com\", and the proxy server is not used for those hosts.
If you are a novice on the regexps, you can use the
`w3m-no-proxy-domains' variable instead."
:group 'w3m
:type '(repeat (cons :format "%v" :indent 4
(regexp :format "%t: %v")
(repeat :tag "Arguments passed to w3m command"
(string :format "Arg: %v")))))
(defcustom w3m-no-proxy-domains nil
"List of domain names with which emacs-w3m will not use a proxy server.
Each element should be exactly a domain name which means the latter
common part of the host names, not a regexp."
:group 'w3m
:type '(repeat (string :format "Domain name: %v")))
(defcustom w3m-command-environment
(delq nil
(list
(if (eq w3m-type 'w3mmee)
(cons "W3MLANG" "ja_JP.kterm"))
(if (eq system-type 'cygwin)
(cons "CYGWIN" "binmode"))
(cons "LC_ALL" "C")))
"Alist of environment variables for subprocesses to inherit."
:group 'w3m
:type '(repeat
(cons :format "%v" :indent 4
(string :format "Name: %v")
(string :format " Value: %v"))))
(defcustom w3m-fill-column -1
"Integer used as the value for `fill-column' in emacs-w3m buffers.
If it is positive, pages will be displayed within the columns of that
number. If it is zero or negative, the number of columns which
subtracted that number from the window width is applied to the maximum
width of pages."
:group 'w3m
:type 'integer)
(defcustom w3m-mailto-url-function nil
"Function used to handle the `mailto' urls.
Function is called with one argument, just a url. If it is nil, a
function specified by the `mail-user-agent' variable will be used for
composing mail messages."
:group 'w3m
:type '(radio (const :tag "Not specified" nil)
(function :format "%t: %v")))
(defcustom w3m-mailto-url-popup-function-alist
'((cmail-mail-mode . pop-to-buffer)
(mail-mode . pop-to-buffer)
(message-mode . pop-to-buffer)
(mew-draft-mode . pop-to-buffer)
(mh-letter-mode . pop-to-buffer)
(wl-draft-mode . pop-to-buffer))
"Alist of (MAJOR-MODE . FUNCTION) pairs used to pop to a mail buffer up.
If a user clicks on a `mailto' url and a mail buffer is composed by
`mail-user-agent' with the MAJOR-MODE, FUNCTION will be called with
a mail buffer as an argument.
Note that the variables `display-buffer-alist',
`same-window-buffer-names' and `same-window-regexps' will be bound to
nil while popping to a buffer up."
:group 'w3m
:type '(repeat (cons :format "%v" :indent 11
(symbol :format "Major-mode: %v")
(function :format "%t: %v"))))
(defcustom w3m-use-ange-ftp nil
"Non-nil means that `ange-ftp' or `efs' is used to access FTP servers."
:group 'w3m
:type 'boolean)
(defcustom w3m-doc-view-content-types
(condition-case nil
(delq nil (mapcar (lambda (type)
(if (doc-view-mode-p type)
(format "application/%s" type)))
'(dvi postscript pdf)))
(error nil))
"List of content types for which to use `doc-view-mode' to view contents.
This overrides `w3m-content-type-alist'."
:group 'w3m
:type '(repeat (string :tag "Type" :value "application/")))
(define-obsolete-variable-alias
'w3m-imitate-widget-button 'w3m-handle-non-anchor-buttons "sometime")
(define-obsolete-function-alias
'w3m-imitate-widget-button 'w3m-handle-non-anchor-buttons "sometime")
(defcustom w3m-handle-non-anchor-buttons '(derived-mode-p 'gnus-article-mode)
"If non-nil, regard non anchor buttons as anchor buttons.
It is useful for moving about in a Gnus article buffer using TAB key.
The value may be a boolean, or a list that will be `eval'd."
:group 'w3m
:type '(radio (const :format "%v " nil) (const :format "%v \n" t)
(sexp :format "Sexp to be eval'd: %v")))
(defcustom w3m-treat-image-size t
"Non-nil means let w3m mind the ratio of the size of images and text.
If it is non-nil, the w3m command will make a halfdump which reserves
rectangle spaces in which images will be put, and also `alt' texts
will be truncated or padded with spaces so that their display width
will be the same as the width of images.
See also `w3m-pixels-per-character' and `w3m-pixels-per-line'. Those
values will be passed to the w3m command in order to compute columns
and lines which images occupy."
:group 'w3m
:type 'boolean)
(defcustom w3m-pixels-per-line 64
"Integer used for the `-ppl' argument of the w3m command.
If nil, the height of the default face is used. It is valid only when
`w3m-treat-image-size' is non-nil. Note that a small value may not
induce a good result. If you want to use emacs-w3m in a character
terminal and make `w3m-treat-image-size' effective, you need to set
this variable properly."
:group 'w3m
:type '(choice (const :tag "Auto Detect" nil)
(integer :tag "Specify Pixels")))
(defcustom w3m-pixels-per-character nil
"Integer used for the `-ppc' argument of the w3m command.
If nil, the width of the default face is used. It is valid only when
`w3m-treat-image-size' is non-nil. If you want to use emacs-w3m in a
character terminal and make `w3m-treat-image-size' effective, you need
to set this variable properly."
:group 'w3m
:type '(radio (const :tag "Auto Detect" nil)
(integer :format "Specify Pixels: %v")))
(defcustom w3m-image-default-background nil
"Color name used as transparent color of image.
Nil means to use the background color of the Emacs frame. Note that
this value is effective only to xbm and monochrome pbm images in Emacs
22 and greater."
:group 'w3m
:type '(radio (string :format "Color: %v"
:match (lambda (widget value)
(and (stringp value) (> (length value) 0))))
(const :tag "Use the background color of the Emacs frame" nil)
(const :tag "Null string" "")))
(defvar w3m-accept-japanese-characters
(and (not noninteractive)
(or (memq w3m-type '(w3mmee w3m-m17n))
;; Examine whether the w3m command specified by `w3m-command'
;; uses `euc-japan' for the internal character set.
(let ((str
(eval-when-compile
(format
(concat
"<!doctype html public \"-//W3C//DTD HTML 3.2//EN\">"
"<html><head><meta http-equiv=\"Content-Type\" "
"content=\"text/html; charset=ISO-2022-JP\">"
"</head><body>%s</body>\n")
(string 27 36 66 52 65 59 122 27 40 66)))))
(with-temp-buffer
(set-buffer-multibyte nil)
(insert str)
(let ((coding-system-for-write 'binary)
(coding-system-for-read 'binary)
(default-process-coding-system (cons 'binary 'binary)))
(call-process-region (point-min) (point-max) w3m-command
t t nil "-T" "text/html" "-halfdump")
(goto-char (point-min))
(and (re-search-forward (string ?\264 ?\301 ?\273 ?\372)
nil t)
t))))))
"Non-nil means that the w3m command accepts Japanese characters.")
(defcustom w3m-coding-system (if (eq w3m-type 'w3mmee)
'iso-2022-7bit-ss2
'iso-2022-7bit)
"Default coding system used to communicate with the w3m command."
:group 'w3m
:type 'coding-system)
(defcustom w3m-terminal-coding-system (if w3m-accept-japanese-characters
'euc-japan 'iso-8859-1)
"Default coding system used when writing to w3m processes.
It is just a default value to set process' coding system initially.
(This variable name is analogically derived from the behavior of the
w3m command which accepts data from Emacs just like reads from the
terminal.)"
:group 'w3m
:type 'coding-system)
(defcustom w3m-output-coding-system (if (eq w3m-type 'w3mmee) 'ctext 'utf-8)
"Coding system used when reading from w3m processes."
:group 'w3m
:type 'coding-system)
(defcustom w3m-input-coding-system w3m-output-coding-system
"Coding system used when writing to w3m processes.
It overrides `coding-system-for-write' if it is not `binary'.
Otherwise, the value of the `w3m-current-coding-system' variable is
used instead."
:group 'w3m
:type 'coding-system)
(defcustom w3m-file-coding-system 'iso-2022-7bit
"Coding system used when writing configuration files.
This value will be referred to by the `w3m-save-list' function."
:group 'w3m
:type 'coding-system)
(defvar w3m-file-coding-system-for-read nil
"*Coding system used when reading configuration files.
It is strongly recommended that you do not set this variable if there
is no particular reason. The value will be referred to by the
`w3m-load-list' function.")
(defcustom w3m-file-name-coding-system
(if (memq system-type '(windows-nt OS/2 emx))
'shift_jis 'euc-japan)
"Coding system used to convert pathnames when emacs-w3m accesses files."
:group 'w3m
:type 'coding-system)
(defcustom w3m-default-coding-system
(if (equal "Japanese" w3m-language) 'shift_jis 'iso-8859-1)
"Default coding system used to encode url strings and post-data."
:group 'w3m
:type 'coding-system)
(defcustom w3m-coding-system-priority-list
(if (equal "Japanese" w3m-language) '(shift_jis))
"Coding systems in order of priority used for emacs-w3m sessions."
:group 'w3m
:type '(repeat (coding-system :format "%t: %v")))
(defcustom w3m-url-coding-system-alist
'(("\\`https?://\\(?:[^./?#]+\\.\\)+google\\(?:\\.[^./?#]+\\)+/"
. (lambda (url)
(if (string-match "&ie=\\([^&]+\\)" url)
(w3m-charset-to-coding-system (match-string 1 url)))))
(nil . utf-8))
"Alist of url regexps and coding systems used to encode url to retrieve.
The form looks like:
((\"REGEXP\" . CODING) (\"REGEXP\" . CODING)...(nil . CODING))
Where REGEXP is a regular expression that matches a url. REGEXP nil
means any url; element of which the car is nil, that is the default,
has to be the last item of this alist.
CODING is a coding system used to encode a url that REGEXP matches.
CODING nil means using the coding system corresponding to a charset
used to encode the current page. CODING may also be a function that
takes one argument URL and returns a coding system.
If the example.com site requires a browser to use `shift_jis' to encode
url for example, you can add it to this variable as follows:
(add-to-list
\\='w3m-url-coding-system-alist
\\='(\"\\\\\\=`https?://\\\\(?:[^./?#]+\\\\.\\\\)*example\\\\.com/\" . shift_jis))"
:group 'w3m
:type '(repeat (cons :format "\n%v" :indent 2
(radio :format "nil or regexp:\n %v"
(const :format "Any " nil)
regexp)
(radio :format "coding-system or function:\n %v"
(const :format "Page's coding system " nil)
coding-system
function))))
(defcustom w3m-key-binding nil
"Type of key binding set used in emacs-w3m sessions.
The valid values include `info' which provides Info-like keys, and
nil which provides Lynx-like keys."
:group 'w3m
:type '(choice
(const :tag "Use Info-like key mapping." info)
(const :tag "Use Lynx-like key mapping." nil))
;; Since the following form won't be byte-compiled, you developers
;; should never use CL macros like `caaaar', `when', `unless' ...
:set (lambda (symbol value)
(prog1
(custom-set-default symbol value)
(if (or noninteractive
;; Loading w3m.elc is just in progress...
(not (featurep 'w3m)))
nil
(if (and;; Some program might bind `w3m-mode-map' for compiling.
(boundp 'w3m-mode-map)
(boundp 'w3m-info-like-map)
(boundp 'w3m-lynx-like-map))
;; It won't be bound at the first time.
(eval
`(setq w3m-mode-map (if (eq ',value 'info)
w3m-info-like-map
w3m-lynx-like-map)
w3m-minor-mode-map (w3m-make-minor-mode-keymap))))
(let ((buffers (buffer-list)))
(save-current-buffer
(while buffers
(set-buffer (car buffers))
(if (eq major-mode 'w3m-mode)
(condition-case nil
(progn
(use-local-map (symbol-value 'w3m-mode-map))
(w3m-setup-toolbar)
(w3m-setup-menu))
(error)))
(setq buffers (cdr buffers)))))))))
(defcustom w3m-use-cygdrive (eq system-type 'cygwin)
"If non-nil, use /cygdrive/ prefix when performing `expand-file-name'."
:group 'w3m
:type 'boolean)
(eval-and-compile
(defconst w3m-treat-drive-letter (memq system-type '(windows-nt OS/2 emx))
"Say whether the system uses drive letters."))
(defcustom w3m-profile-directory
(concat "~/." (file-name-sans-extension
(file-name-nondirectory w3m-command)))
"Directory where emacs-w3m config files are loaded from or saved to."
:group 'w3m
:type 'directory)
(defcustom w3m-init-file "~/.emacs-w3m"
"Your emacs-w3m startup file name.
If a file with the `.el' or `.elc' suffixes exists, it will be read
instead. Nil means no init file will be loaded.
Note: This file is used as the startup configuration *NOT* for the w3m
command but for emacs-w3m. In order to modify configurations for the
w3m command, edit the file named \"~/.w3m/config\" normally."
:group 'w3m
:type '(radio file (const :format "None " nil)))
(defcustom w3m-default-save-directory
(concat "~/." (file-name-sans-extension
(file-name-nondirectory w3m-command)))
"Default directory where downloaded files will be saved to."
:group 'w3m
:type 'directory)
(defcustom w3m-external-view-temp-directory w3m-profile-directory
"Directory where files are saved for the external file viewer."
:group 'w3m
:type 'directory)
(defcustom w3m-default-directory nil
"Directory used as the current directory in emacs-w3m buffers.
The valid values include a string specifying an existing directory,
a symbol of which the value specifies an existing directory,
a function which takes a url as an argument and returns a directory,
and nil. If the specified directory does not exist or it is nil,
the value of `w3m-profile-directory' is used.
Note that there is an exception: if a page visits a local file or
visits a remote file using ftp, the directory in which the file exists
is used as the current directory instead."
:group 'w3m
:type '(radio (directory :format "%{%t%}: %v" :value "~/")
(symbol :format "%{%t%}: %v"
:match (lambda (widget value) value)
:value default-directory)
(function :format "%{%t%}: %v")
(const nil)))
(defcustom w3m-queries-log-file (expand-file-name
"emacs-w3m-queries_log.txt"
w3m-profile-directory)
"File in which to log URL queries."
:group 'w3m
:type 'file)
(defcustom w3m-accept-languages
(let ((file (expand-file-name "config" w3m-profile-directory)))
(or (when (file-readable-p file)
(with-temp-buffer
(insert-file-contents file)
(goto-char (point-min))
(when (re-search-forward "^accept_language[\t ]+\\(.+\\)$" nil t)
(delete "" (split-string (match-string 1)
"[ \t\r\f\n]*,[ \t\r\f\n]*")))))
(when (string= w3m-language "Japanese")
'("ja" "en"))))
"List of acceptable languages in descending order of priority.
The default value is set according to the accept_language entry of the
w3m configuration file (normally \"~/.w3m/config\")."
:group 'w3m
:type '(repeat (string :format "Lang: %v")))
(defcustom w3m-delete-duplicated-empty-lines t
"Non-nil means display two or more continuous empty lines into single."
:group 'w3m
:type 'boolean)
(defvar-local w3m-display-inline-images nil
"Internal variable controls whether to show images in emacs-w3m buffers.
This variable is buffer-local which defaults to the value of
`w3m-default-display-inline-images'. Don't set it directly; modify
the `w3m-default-display-inline-images' variable or use the\
`\\<w3m-mode-map>\\[w3m-toggle-inline-images]' command
to change the appearance of images.
See also `w3m-toggle-inline-images-permanently'.")
(defcustom w3m-default-display-inline-images nil
"Non-nil means display images inline in emacs-w3m buffers.
You can toggle the visibility of images by the\
`\\<w3m-mode-map>\\[w3m-toggle-inline-images]' command.
See also `w3m-toggle-inline-images-permanently'."
:group 'w3m
:type 'boolean)
(defcustom w3m-toggle-inline-images-permanently t
"Non-nil means let the visibility of images continue permanently.
The visibility of images is initialized according to
`w3m-default-display-inline-images' at the first time, and except that
it may be toggled by the `\\<w3m-mode-map>\\[w3m-toggle-inline-images]'\
command, it does not change hereafter, if
it is non-nil. Otherwise, whether images are visible is initialized
according to `w3m-default-display-inline-images' whenever you visit a
new page or reload the current page in an emacs-w3m buffer."
:group 'w3m
:type 'boolean)
(defcustom w3m-icon-directory
(let (dir)
(or
(catch 'found-dir
(let* ((path (locate-library "w3m"))
(paths (if path
(cons (file-name-directory path) load-path)
load-path)))
(while paths
(setq path (car paths)
paths (cdr paths))
(if path
(progn
(if (file-directory-p
(setq dir
(expand-file-name "../../etc/images/w3m/" path)))
(throw 'found-dir dir))
(if (file-directory-p
(setq dir
(expand-file-name "../etc/images/w3m/" path)))
(throw 'found-dir dir))
(if (file-directory-p
(setq dir
(expand-file-name "../../etc/w3m/icons/" path)))
(throw 'found-dir dir))
(if (file-directory-p
(setq dir
(expand-file-name "../etc/w3m/icons/" path)))
(throw 'found-dir dir)))))))
(and (file-directory-p
(setq dir (expand-file-name "images/w3m/" data-directory)))
dir)
(and (file-directory-p
(setq dir (expand-file-name "w3m/icons/" data-directory)))
dir)))
"Directory where emacs-w3m should find icon files."
:group 'w3m
:type '(radio (const :tag "Not specified")
(directory :format "%t: %v")))
(defcustom w3m-broken-proxy-cache nil
"Set it to t if the proxy server seems not to work properly in caching.
Note that this may be the double-edged sword; setting it to t will
likely be harmful if the proxy server sends bad requests (e.g., not
including the Host header, see RFC2616 section 14.23) to foreign
servers when the w3m command specifies the \"no-cache\" directive. Also
note that it may not be effective if you are using old w3m command."
:group 'w3m
:type 'boolean)
(defcustom w3m-quick-start t
"Non-nil means let emacs-w3m start quickly w/o requiring confirmation.
When you invoke the `w3m' command, it attempts to visit the page of a
string like url around the cursor or the value of `w3m-home-page'.
You won't be asked for the confirmation then if this value is non-nil.
Otherwise, you will be prompted for that url with the editing form."
:group 'w3m
:type 'boolean)
(defcustom w3m-home-page
(or (getenv "HTTP_HOME")
(getenv "WWW_HOME")
"about:")
"This variable specifies the url string to open when emacs-w3m starts.
Don't say HP, which is the abbreviated name of a certain company. ;-)"
:group 'w3m
:type '(radio
:convert-widget w3m-widget-type-convert-widget
`(,@(if (getenv "HTTP_HOME")
`((const :format "HTTP_HOME: \"%v\"\n"
,(getenv "HTTP_HOME"))))
,@(if (getenv "WWW_HOME")
`((const :format "WWW_HOME: \"%v\"\n"
(getenv "WWW_HOME"))))
(const :tag "About emacs-w3m" "about:")
(const :tag "Blank page" "about:blank")
(string :format "URL: %v"))))
(defcustom w3m-arrived-file
(expand-file-name ".arrived" w3m-profile-directory)
"Name of the file to keep the arrived URLs database."
:group 'w3m
:type 'file)
(defcustom w3m-keep-arrived-urls 500
"Maximum number of URLs which the arrived URLs database keeps."
:group 'w3m
:type 'integer)
(defcustom w3m-prefer-cache nil
"Non-nil means that cached contents are used without checking headers."
:group 'w3m
:type 'boolean)
(defcustom w3m-keep-cache-size 300
"Maximum number of pages to be cached in emacs-w3m."
:group 'w3m
:type 'integer)
(defcustom w3m-follow-redirection 9
"Maximum number of redirections which emacs-w3m honors and follows.
If nil, redirections are followed by the w3m command. Don't set it to
nil if you allow to use cookies (i.e., you have set `w3m-use-cookies'
to non-nil) since cookies may be shared among many redirected pages."
:group 'w3m
:type '(radio (const :format "Ignore redirections " nil)
integer))
(defcustom w3m-redirect-with-get t
"If non-nil, use the GET method after redirection.
It controls how emacs-w3m works when a server responds the code 301 or
302. Here is an extract from RFC2616:
Note: RFC 1945 and RFC 2068 specify that the client is not allowed
to change the method on the redirected request. However, most
existing user agent implementations treat 302 as if it were a 303
response, performing a GET on the Location field-value regardless
of the original request method."
:group 'w3m
:type 'boolean)
(defcustom w3m-resize-image-scale 50