From: Richard M. Stallman Date: Fri, 13 Oct 1995 19:18:29 +0000 (+0000) Subject: Initial revision X-Git-Tag: emacs-19.34~2652 X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=a69315a1b93c31a8d6bd5a8329d7cb101e71e706;p=emacs.git Initial revision --- diff --git a/lisp/browse-url.el b/lisp/browse-url.el new file mode 100644 index 00000000000..e99462a0e4d --- /dev/null +++ b/lisp/browse-url.el @@ -0,0 +1,598 @@ +;;; browse-url.el --- ask a WWW browser to load a URL +;; Copyright 1995 Free Software Foundation, Inc. + +;; Author: Denis Howe +;; Maintainer: Denis Howe +;; Created: 03 Apr 1995 +;; Keywords: hypertext +;; X-Home page: http://wombat.doc.ic.ac.uk/ + +;; This file is part of GNU Emacs. + +;; GNU Emacs is free software; you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published +;; by the Free Software Foundation; either version 2, or (at your +;; option) any later version. + +;; GNU Emacs is distributed in the hope that it will be useful, but +;; WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +;; General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs; see the file COPYING. If not, write to the +;; Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;;; Commentary: + +;; The latest version of this package should be available from +;; . + +;; This package provides functions which read a URL (Uniform Resource +;; Locator) from the minibuffer, defaulting to the URL around point, +;; and ask a World-Wide Web browser to load it. It can also load the +;; URL associated with the current buffer. Different browsers use +;; different methods of remote control so there is one function for +;; each supported browser. If the chosen browser is not running, it +;; is started. Currently there is support for: + +;; Function Browser Earliest version +;; browse-url-netscape Netscape 1.1b1 +;; browse-url-mosaic XMosaic <= 2.4 +;; browse-url-cci XMosaic 2.5 +;; browse-url-w3 w3 0 +;; browse-url-iximosaic IXI Mosaic ? + +;; Note that versions of Netscape before 1.1b1 did not have remote +;; control. +;; and . + +;; Netscape can cache Web pages so it may be necessary to tell it to +;; reload the current page if it has changed (eg. if you have edited +;; it). There is currently no perfect automatic solution to this. + +;; Netscape allows you to specify the id of the window you want to +;; control but which window DO you want to control and how do you +;; discover its id? + +;; If using XMosaic before version 2.5, check the definition of +;; browse-url-usr1-signal below. +;; + +;; XMosaic version 2.5 introduced Common Client Interface allowing you +;; to control mosaic through Unix sockets. +;; + +;; William M. Perry's excellent "w3" WWW browser for +;; Emacs +;; has a function w3-follow-url-at-point, but that +;; doesn't let you edit the URL like browse-url. + +;; I recommend Nelson Minar 's excellent +;; html-helper-mode.el for editing HTML and thank Nelson for +;; his many useful comments on this code. +;; + +;; This package generalises function html-previewer-process in Marc +;; Andreessen 's html-mode (LCD +;; modes/html-mode.el.Z) and provides better versions of the URL +;; functions in Michelangelo Grigni 's ffap.el +;; (find-file-at-point) . The huge +;; hyperbole package also contains similar functions. + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Help! + +;; Can you write and test some code for the Macintrash and Windoze +;; Netscape remote control APIs? (See the URL above). + +;; Do any other browsers have remote control? + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Installation + +;; Put the following in your ~/.emacs file: +;; +;; (autoload 'browse-url-at-point "browse-url" +;; "Ask a WWW browser to load the URL at or before point." t) +;; (autoload 'browse-url-at-mouse "browse-url" +;; "Ask a WWW browser to load a URL clicked with the mouse." t) +;; (autoload 'browse-url-of-buffer "browse-url" +;; "Ask a WWW browser to display BUFFER." t) +;; (autoload 'browse-url-of-file "browse-url" +;; "Ask a WWW browser to display FILE." t) +;; (autoload 'browse-url-of-dired-file "browse-url" +;; "In Dired, ask a WWW browser to display the file named on this line." +t) + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Usage + +;; To display the URL at or before point: +;; M-x browse-url-at-point RET + +;; To display a URL by shift-clicking on it, put this in your ~/.emacs +;; file: +;; (global-set-key [S-mouse-1] 'browse-url-at-mouse) + +;; To display the current buffer in a web browser: +;; M-x browse-url-of-buffer RET + +;; In Dired, to display the file named on the current line: +;; M-x browse-url-of-dired-file RET + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Customisation (~/.emacs) + +;; To see what variables are available for customization, type `M-x +;; set-variable browse-url TAB'. + +;; To bind the browse-url commands to keys with the `C-c u' prefix: +;; (global-set-key "\C-cu." 'browse-url-at-point) +;; (global-set-key "\C-cub" 'browse-url-of-buffer) +;; (global-set-key "\C-cuf" 'browse-url-of-file) +;; (add-hook 'dired-mode-hook +;; (function (lambda () +;; (local-set-key "\C-cuf" +'browse-url-of-dired-file)))) +;; (if (boundp 'browse-url-browser-function) +;; (global-set-key "\C-cuu" browse-url-browser-function) +;; (eval-after-load +;; "browse-url" +;; '(global-set-key "\C-cuu" browse-url-browser-function))) + +;; To use the Emacs w3 browser when not running under X11: +;; (if (not (eq window-system 'x)) +;; (setq browse-url-browser-function 'browse-url-w3)) + +;; To always save modified buffers before displaying the file in a browser: +;; (setq browse-url-save-file t) + +;; To get round the Netscape caching problem, you could try either of +;; the following (but not both). EITHER write-file in +;; html-helper-mode makes Netscape reload document: +;; +;; (autoload 'browse-url-netscape-reload "browse-url" +;; "Ask a WWW browser to redisplay the current file." t) +;; (add-hook 'html-helper-mode-hook +;; (function (lambda () +;; (add-hook 'local-write-file-hooks +;; (function (lambda () +;; (let ((local-write-file-hooks)) +;; (save-buffer)) +;; (browse-url-netscape-reload) +;; t)) ; => file written +by hook +;; t)))) ; append to +l-w-f-hooks +;; +;; [Does this work for html-mode too?] +;; +;; OR browse-url-of-file ask Netscape to load and then reload the +;; file: +;; +;; (add-hook 'browse-url-of-file-hook 'browse-url-netscape-reload) + +;; You may also want to customise browse-url-netscape-arguments, eg. +;; +;; (setq browse-url-netscape-arguments '("-install")) +;; +;; or similarly for the other browsers. + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;;; Change Log: + +;; 0.00 03 Apr 1995 Denis Howe +;; Created. + +;; 0.01 04 Apr 1995 +;; All names start with "browse-url-". Added provide. + +;; 0.02 05 Apr 1995 +;; Save file at start of browse-url-of-file. +;; Use start-process instead of start-process-shell-command. + +;; 0.03 06 Apr 1995 +;; Add browse-url-netscape-reload, browse-url-netscape-command. +;; browse-url-of-file save file option. + +;; 0.04 08 Apr 1995 +;; b-u-file-url separate function. Change b-u-filename-alist +;; default. + +;; 0.05 09 Apr 1995 +;; Added b-u-of-file-hook. + +;; 0.06 11 Apr 1995 +;; Improved .emacs suggestions and documentation. + +;; 0.07 13 Apr 1995 +;; Added browse-url-interactive-arg optional prompt. + +;; 0.08 18 Apr 1995 +;; Exclude final "." from browse-url-regexp. + +;; 0.09 21 Apr 1995 +;; Added mouse-set-point to browse-url-interactive-arg. + +;; 0.10 24 Apr 1995 +;; Added Mosaic signal sending variations. +;; Thanks Brian K Servis . +;; Don't use xprop for Netscape. + +;; 0.11 25 Apr 1995 +;; Fix reading of ~/.mosaicpid. Thanks Dag.H.Wanvik@kvatro.no. + +;; 0.12 27 Apr 1995 +;; Interactive prefix arg => URL *after* point. +;; Thanks Michelangelo Grigni . +;; Added IXI Mosaic support. +;; Thanks David Karr . + +;; 0.13 28 Apr 1995 +;; Exclude final [,;] from browse-url-regexp. + +;; 0.14 02 May 1995 +;; Provide browser argument variables. + +;; 0.15 07 May 1995 +;; More Netscape options. Thanks Peter Arius +;; . + +;; 0.16 17 May 1995 +;; Added browse-url-at-mouse. +;; Thanks Wayne Mesard + +;; 0.17 27 Jun 1995 +;; Renamed browse-url-at-point to browse-url-url-at-point. +;; Added browse-url-at-point. +;; Thanks Jonathan Cano . + +;; 0.18 16 Aug 1995 +;; Fixed call to browse-url-url-at-point in browse-url-at-point. +;; Thanks Eric Ding . + +;; 0.19 24 Aug 1995 +;; Improved documentation. +;; Thanks Kevin Rodgers . + +;; 0.20 31 Aug 1995 +;; browse-url-of-buffer to handle file-less buffers. +;; browse-url-of-dired-file browses current file in dired. +;; Thanks Kevin Rodgers . + +;; 0.21 09 Sep 1995 +;; XMosaic CCI functions. +;; Thanks Marc Furrer . + +;; 0.22 13 Sep 1995 +;; Fixed new-window documentation and added to browse-url-cci. +;; Thanks Dilip Sequeira . + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;;; Code: + +(defvar browse-url-regexp + "\\(https?://\\|ftp://\\|gopher://\\|telnet://\\|wais://\\|file:/\\|s?news:\\|mai +lto:\\)[^]\t\n \"'()<>[^`{}]*[^]\t\n \"'()<>[^`{}.,;]+" + "A regular expression probably matching a URL.") + +(defvar browse-url-browser-function + 'browse-url-netscape + "*Function to display the current buffer in a WWW browser. +Used by the `browse-url-at-point', `browse-url-at-mouse', and +`browse-url-of-file' commands.") + +(defvar browse-url-netscape-arguments nil + "*A list of strings to pass to Netscape as arguments.") + +(defvar browse-url-new-window-p nil + "*If non-nil, always open a new browser window. +Passing an interactive argument to \\[browse-url-netscape] or +\\[browse-url-cci] reverses the effect of this variable. Requires +Netscape version 1.1N or later or XMosaic version 2.5 or later.") + +(defvar browse-url-mosaic-arguments nil + "*A list of strings to pass to Mosaic as arguments.") + +(defvar browse-url-filename-alist + '(("^/+" . "file:/")) + "An alist of (REGEXP . STRING) pairs. +Any substring of a filename matching one of the REGEXPs is replaced by +the corresponding STRING. All pairs are applied in the order given. +Used by the `browse-url-of-file' command.") + +(defvar browse-url-save-file nil + "If non-nil, save the buffer before displaying its file. +Used by the `browse-url-of-file' command.") + +(defvar browse-url-of-file-hook nil + "A hook to be run with run-hook after `browse-url-of-file' has asked +a browser to load a file. + +Set this to `browse-url-netscape-reload' to force Netscape to load the +file rather than displaying a cached copy.") + +(defvar browse-url-usr1-signal + (if (and (boundp 'emacs-major-version) + (or (> emacs-major-version 19) (>= emacs-minor-version 29))) + 'sigusr1 + 30) ; Check /usr/include/signal.h. + "The argument to `signal-process' for sending SIGUSR1 to XMosaic. +Emacs 19.29 accepts 'sigusr1, earlier versions require an integer +which is 30 on SunOS and 16 on HP-UX and Solaris.") + +(defvar browse-url-CCI-port 3003 + "Port to access XMosaic via CCI. +This can be any number between 1024 and 65535 but must correspond to +the value set in the browser.") + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; URL input + +;; thingatpt.el doesn't work for complex regexps. + +(defun browse-url-url-at-point () + "Return the URL around or before point. +Then search backwards for the start of a URL. If no URL found, return +the empty string." + (if (or (looking-at browse-url-regexp) ; Already at start + (let ((eol (save-excursion (end-of-line) (point)))) + ;; Search forwards for the next URL or end of line in case + ;; we're in the middle of one. + (and (re-search-forward browse-url-regexp eol 'lim) + (goto-char (match-beginning 0))) + ;; Now back to where we started or earlier. + (re-search-backward browse-url-regexp nil t))) + (buffer-substring (match-beginning 0) (match-end 0)) + "")) ; No match + +;; Todo: restrict to around or immediately before point. Expand bare +;; hostname to URL. + +(defun browse-url-interactive-arg (&optional prompt) + "Read a URL from the minibuffer, optionally prompting with PROMPT. +Default to the URL at or before point. If bound to a mouse button, +set point to the position clicked. Return the result as a list for +use in `interactive'." + (let ((event (elt (this-command-keys) 0))) + (and (listp event) (mouse-set-point event))) + (list (read-string (or prompt "URL: ") (browse-url-url-at-point)))) + +(defun browse-url-at-point () + "Ask a WWW browser to load the URL at or before point. +The URL is loaded according to the value of `browse-url-browser-function'." + (interactive) + (funcall browse-url-browser-function (browse-url-url-at-point))) + +(defun browse-url-at-mouse (event) + "Ask a WWW browser to load a URL clicked with the mouse. +The URL is the one around or before the position of the mouse click +but point is not changed. The URL is loaded according to the value of +`browse-url-browser-function'." + (interactive "e") + (save-excursion + (let ((posn (event-start event))) + (set-buffer (window-buffer (posn-window posn))) + (goto-char (posn-point posn)) + (let ((url (browse-url-url-at-point))) + (if (string-equal url "") + (error "No URL found")) + (funcall browse-url-browser-function url))))) + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Browse current buffer + +(defun browse-url-of-file (&optional file) + "Ask a WWW browser to display FILE. +Display the current buffer's file if FILE is nil or if called +interactively. Turn the filename into a URL by performing +replacements given in variable `browse-url-filename-alist'. Pass the +URL to a browser using variable `browse-url-browser-function' then run +`browse-url-of-file-hook'." + (interactive) + (setq file + (or file + (buffer-file-name) + (error "Current buffer has no file"))) + (let ((buf (get-file-buffer file))) + (if buf + (save-excursion + (set-buffer buf) + (cond ((not (buffer-modified-p))) + (browse-url-save-file (save-buffer)) + (t (message "%s modified since last save" file)))))) + (funcall browse-url-browser-function (browse-url-file-url file)) + (run-hooks 'browse-url-of-file-hook)) + +(defun browse-url-file-url (file) + "Return the URL corresponding to FILE. +Uses variable `browse-url-filename-alist' to map filenames to URLs." + (let ((maps browse-url-filename-alist)) + (while maps + (let* ((map (car maps)) + (from-re (car map)) + (to-string (cdr map))) + (setq maps (cdr maps)) + (if (string-match from-re file) + (setq file (concat (substring file 0 (match-beginning 0)) + to-string + (substring file (match-end 0)))))))) + file) + +(defvar browse-url-temp-file-name nil) +(make-variable-buffer-local 'browse-url-temp-file-name) + +(defvar browse-url-temp-file-list '()) + +(defun browse-url-of-buffer (&optional buffer) + "Ask a WWW browser to display BUFFER. +Display the current buffer if BUFFER is nil." + (interactive) + (save-excursion + (set-buffer (or buffer (current-buffer))) + (let ((file-name + (or buffer-file-name + (and (boundp 'dired-directory) dired-directory)))) + (if (null file-name) + (progn + (if (null browse-url-temp-file-name) + (progn + (setq browse-url-temp-file-name + (make-temp-name + (expand-file-name (buffer-name) + (or (getenv "TMPDIR") "/tmp")))) + (setq browse-url-temp-file-list + (cons browse-url-temp-file-name + browse-url-temp-file-list)))) + (write-region (point-min) (point-max) browse-url-temp-file-name + nil 'no-message))) + (browse-url-of-file (or file-name browse-url-temp-file-name))))) + +(defun browse-url-delete-temp-file (&optional temp-file-name) + ;; Delete browse-url-temp-file-name from the file system and from + ;; browse-url-temp-file-list. If optional arg TEMP-FILE-NAME is + ;; non-nil, delete it instead, but only from the file system -- + ;; browse-url-temp-file-list is not affected. + (let ((file-name (or temp-file-name browse-url-temp-file-name))) + (if (and file-name (file-exists-p file-name)) + (progn + (delete-file file-name) + (if (null temp-file-name) + (setq browse-url-temp-file-list + (delete browse-url-temp-file-name + browse-url-temp-file-list))))))) + +(defun browse-url-delete-temp-file-list () + ;; Delete all elements of browse-url-temp-file-list. + (while browse-url-temp-file-list + (browse-url-delete-temp-file (car browse-url-temp-file-list)) + (setq browse-url-temp-file-list + (cdr browse-url-temp-file-list)))) + +(add-hook 'kill-buffer-hook 'browse-url-delete-temp-file) +(add-hook 'kill-emacs-hook 'browse-url-delete-temp-file-list) + +(defun browse-url-of-dired-file () + "In Dired, ask a WWW browser to display the file named on this line." + (interactive) + (browse-url-of-file (dired-get-filename))) + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Browser-specific functions + +(defun browse-url-netscape (url &optional new-window) + "Ask the Netscape WWW browser to load URL. + +Default to the URL around or before point. The strings in variable +`browse-url-netscape-arguments' are also passed to Netscape. + +When called interactively, if variable `browse-url-new-window-p' is +non-nil, load the document in a new Netscape window, otherwise use a +random existing one. A non-nil interactive prefix argument reverses +the effect of browse-url-new-window-p. + +When called non-interactively, optional second argument NEW-WINDOW is +used instead of browse-url-new-window-p." + + (interactive (append (browse-url-interactive-arg "Netscape URL: ") + (list (not (eq (null browse-url-new-window-p) + (null current-prefix-arg)))))) + (or (zerop + (apply 'call-process "netscape" nil nil nil + (append browse-url-netscape-arguments + (if new-window '("-noraise")) + (list "-remote" + (concat "openURL(" url + (if new-window ",new-window") + ")"))))) + (progn ; Netscape not running - start it + (message "Starting Netscape...") + (apply 'start-process "netscape" nil "netscape" + (append browse-url-netscape-arguments (list url)))))) + +(defun browse-url-netscape-reload () + "Ask Netscape to reload its current document." + (interactive) + (browse-url-netscape-command "reload")) + +(defun browse-url-netscape-command (command) + "Send a remote control command to Netscape." + (apply 'start-process "netscape" nil "netscape" + (append browse-url-netscape-arguments + (list "-remote" command)))) + +(defun browse-url-mosaic (url) + "Ask the XMosaic WWW browser to load URL. +Default to the URL around or before point." + (interactive (browse-url-interactive-arg "Mosaic URL: ")) + (let ((pidfile (expand-file-name "~/.mosaicpid")) + pid pidbuf) + (if (file-readable-p pidfile) + (save-excursion + (find-file pidfile) + (goto-char (point-min)) + (setq pid (read (current-buffer))) + (kill-buffer nil))) + (if (and pid (zerop (signal-process pid 0))) ; Mosaic running + (save-excursion + (find-file (format "/tmp/Mosaic.%d" pid)) + (erase-buffer) + (insert "goto\n" url "\n") + (save-buffer) + (kill-buffer nil) + ;; Send signal SIGUSR to Mosaic + (message "Signalling Mosaic...") + (signal-process pid browse-url-usr1-signal) + ;; Or you could try: + ;; (call-process "kill" nil 0 nil "-USR1" (int-to-string pid)) + ) + ;; Mosaic not running - start it + (message "Starting Mosaic...") + (apply 'start-process "xmosaic" nil "xmosaic" + (append browse-url-mosaic-arguments (list url)))))) + +(defun browse-url-cci (url &optional new-window) + "Ask the XMosaic WWW browser to load URL. +Default to the URL around or before point. + +This function only works for XMosaic version 2.5 or later. You must +select `CCI' from XMosaic's File menu, set the CCI Port Address to the +value of variable `browse-url-CCI-port', and enable `Accept requests'. + +When called interactively, if variable `browse-url-new-window-p' is +non-nil, load the document in a new browser window, otherwise use a +random existing one. A non-nil interactive prefix argument reverses +the effect of browse-url-new-window-p. + +When called non-interactively, optional second argument NEW-WINDOW is +used instead of browse-url-new-window-p." + (interactive (append (browse-url-interactive-arg "Mosaic URL: ") + (list (not (eq (null browse-url-new-window-p) + (null current-prefix-arg)))))) + (open-network-stream "browse-url" " *browse-url*" + "localhost" browse-url-CCI-port) + ;; Todo: start browser if fails + (process-send-string "browse-url" + (concat "get url (" url ") output " + (if new-window "new" "current") "\r\n")) + (process-send-string "browse-url" "disconnect\r\n") + (delete-process "browse-url")) + +(defun browse-url-iximosaic (url) + "Ask the IXIMosaic WWW browser to load URL. +Default to the URL around or before point." + (interactive (browse-url-interactive-arg "IXI Mosaic URL: ")) + (start-process "tellw3b" nil "tellw3b" + "-service WWW_BROWSER ixi_showurl " url)) + +(defun browse-url-w3 (url) + "Ask the w3 WWW browser to load URL. +Default to the URL around or before point." + (interactive (browse-url-interactive-arg "W3 URL: ")) + (w3-fetch url)) + +(provide 'browse-url) + +;;; browse-url.el ends here diff --git a/lisp/goto-addr.el b/lisp/goto-addr.el new file mode 100644 index 00000000000..f338cdcf10e --- /dev/null +++ b/lisp/goto-addr.el @@ -0,0 +1,223 @@ +;;; goto-addr.el --- click to browse URL or to send to e-mail address +;; Copyright (C) 1995 Free Software Foundation, Inc. + +;; Maintainer: Eric Ding +;; Created: 15 Aug 1995 +;; Keywords: mh-e, www, mouse, mail + +;; This file is part of GNU Emacs. + +;; GNU Emacs is free software; you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation; either version 2, or (at your option) +;; any later version. + +;; GNU Emacs is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs; see the file COPYING. If not, write to +;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + +;;; Commentary: + +;; This package allows you to click or hit a key sequence while on a +;; URL or e-mail address, and either load the URL into a browser of +;; your choice using the browse-url package, or if it's an e-mail +;; address, to send an e-mail to that address. By default, we bind to +;; the [S-mouse-1] and the [C-c return] key sequences. +;; +;; You will also need the browse-url.el package to use goto-address. +;; You can find it at . + +;; INSTALLATION +;; +;; To install goto-address, put goto-addr.el somewhere in +;; your load-path and add the following to your .emacs file: +;; +;; (autoload 'goto-address "goto-addr" +;; "Set up buffer to click to browse URL or to send to e-mail address" t) +;; +;; To use it in a particular mode (for example, while reading mail in +;; mh-e), add something like this in your .emacs file: +;; +;; (add-hook 'mh-show-mode-hook 'goto-address) +;; +;; By default, goto-address now sends using `mail' instead of `mh-send'. +;; To use mh-e to send mail, add the following to your .emacs file: +;; +;; (setq goto-address-mail-method 'goto-address-send-using-mhe) +;; +;; To rebind, for example, the mouse click method to [mouse-2] in +;; mh-show-mode, add the following (instead of the first add-hook example +;; above) to your .emacs file: +;; +;; (defun my-goto-address () +;; (goto-address) +;; (local-unset-key [S-mouse-1]) +;; (local-set-key [mouse-2] 'goto-address-at-mouse)) +;; +;; (add-hook 'mh-show-mode-hook 'my-goto-address) +;; +;; [mouse-2] is not the default mouse binding because I use goto-address in +;; some editable buffers, where [mouse-2] means mouse-yank-at-click, as well +;; as in some modes where [mouse-2] is bound to other useful functions. + +;; BUG REPORTS +;; +;; Please send bug reports to me at ericding@mit.edu. + +;; Known bugs/features: +;; * goto-address-mail-regexp only catches foo@bar.org style addressing, +;; not stuff like X.400 addresses, etc. +;; * regexp also catches Message-Id line, since it is in the format of +;; an Internet e-mail address (like Compuserve addresses) +;; * If show buffer is fontified after goto-address-fontify is run +;; (say, using font-lock-fontify-buffer), then font-lock face will +;; override goto-address faces. + +;;; Change log: + +;;; Code: + +(require 'browse-url) + +(defvar goto-address-fontify-p t + "*If t, URL's and e-mail address in buffer are fontified.") + +(defvar goto-address-fontify-maximum-size 30000 + "*Maximum size of file in which to fontify URL's.") + +(defvar goto-address-mail-regexp + "[-a-zA-Z0-9._]+@\\([-a-zA-z0-9_]+\\.\\)+[a-zA-Z0-9]+" + "A regular expression probably matching an e-mail address.") + +(defvar goto-address-url-regexp + (concat "\\b\\(s?https?\\|ftp\\|file\\|gopher\\|news\\|" + "telnet\\|wais\\):\\(//[-a-zA-Z0-9_.]+:" + "[0-9]*\\)?[-a-zA-Z0-9_=?#$@~`%&*+|\\/.,]*" + "[-a-zA-Z0-9_=#$@~`%&*+|\\/]") + "A regular expression probably matching a URL.") + +(defvar goto-address-mail-method + 'goto-address-send-using-mail + "*Function to compose mail. +Two pre-made functions are `goto-address-send-using-mail' (sendmail); +and `goto-address-send-using-mhe' (MH-E).") + +(defun goto-address-fontify () + "Fontify the URL's and e-mail addresses in the current buffer." + (save-excursion + (let ((inhibit-read-only t) + (modified (buffer-modified-p))) + (goto-char (point-min)) + (if (< (- (point-max) (point)) goto-address-fontify-maximum-size) + (progn + (while (re-search-forward goto-address-url-regexp nil t) + ;; if text is invisible, we ignore it + (and (goto-address-skip-invisible (match-beginning 0)) + (progn + (goto-char (match-end 0)) + (put-text-property (match-beginning 0) (match-end 0) + 'face 'bold) + (put-text-property (match-beginning 0) (match-end 0) + 'mouse-face 'highlight)))) + (goto-char (point-min)) + (while (re-search-forward goto-address-mail-regexp nil t) + ;; if text is invisible, we ignore it + (and (goto-address-skip-invisible (match-beginning 0)) + (progn + (goto-char (match-end 0)) + (put-text-property (match-beginning 0) (match-end 0) + 'face 'italic) + (put-text-property (match-beginning 0) (match-end 0) + 'mouse-face 'secondary-selection)))))) + (and (buffer-modified-p) + (not modified) + (set-buffer-modified-p nil))))) + +(defun goto-address-skip-invisible (char) + "If char is not invisible, then return t. Otherwise, move forward in buffer +until a non-invisible char is found, goto that position, and return nil." + (if (get-text-property char 'invisible) + (let ((char (1+ char))) + (while (get-text-property char 'invisible) + (setq char (1+ char)) + (goto-char char))) + t)) + +;;; code to find and goto addresses; much of this has been blatantly +;;; snarfed from browse-url.el + +(defun goto-address-at-mouse (event) + "Send to the e-mail address or load the URL clicked with the mouse. +Send mail to address at position of mouse click. See documentation for +`goto-address-find-address-at-point'. If no address is found +there, then load the URL at or before the position of the mouse click." + (interactive "e") + (save-excursion + (let ((posn (event-start event))) + (set-buffer (window-buffer (posn-window posn))) + (goto-char (posn-point posn)) + (let ((address + (save-excursion (goto-address-find-address-at-point)))) + (if (string-equal address "") + (let ((url (browse-url-url-at-point))) + (if (string-equal url "") + (error "No e-mail address or URL found") + (funcall browse-url-browser-function url))) + (funcall goto-address-mail-method address)))))) + +(defun goto-address-at-point () + "Send to the e-mail address or load the URL at point. +Send mail to address at point. See documentation for +`goto-address-find-address-at-point'. If no address is found +there, then load the URL at or before point." + (interactive) + (save-excursion + (let ((address (save-excursion (goto-address-find-address-at-point)))) + (if (string-equal address "") + (let ((url (browse-url-url-at-point))) + (if (string-equal url "") + (error "No e-mail address or URL found") + (funcall browse-url-browser-function url))) + (funcall goto-address-mail-method address))))) + +(defun goto-address-find-address-at-point () + "Find e-mail address around or before point. +Then search backwards to beginning of line for the start of an e-mail +address. If no e-mail address found, return the empty string." + (let ((bol (save-excursion (beginning-of-line) (point)))) + (re-search-backward "[^-_A-z0-9.@]" bol 'lim) + (if (or (looking-at goto-address-mail-regexp) ; already at start + (let ((eol (save-excursion (end-of-line) (point)))) + (and (re-search-forward goto-address-mail-regexp eol 'lim) + (goto-char (match-beginning 0))))) + (buffer-substring (match-beginning 0) (match-end 0)) + ""))) + +(defun goto-address-send-using-mhe (to) + (mh-find-path) + (let ((cc (mh-read-address "Cc: ")) + (subject (read-string "Subject: ")) + (config (current-window-configuration))) + (delete-other-windows) + (mh-send-sub to cc subject config))) + +(defun goto-address-send-using-mail (to) + (mail-other-window nil to) + (and (goto-char (point-min)) + (end-of-line 2))) + +(defun goto-address () + (interactive) + (local-set-key [S-mouse-1] 'goto-address-at-mouse) + (local-set-key "\C-c\r" 'goto-address-at-point) + (if goto-address-fontify-p + (goto-address-fontify))) + +(provide 'goto-addr) + +;;; goto-addr.el ends here.