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- ;;; webjump.el --- programmable Web hotlist
-
- ;; Copyright (C) 1996-1997 Free Software Foundation
-
- ;; Author: Neil W. Van Dyke <nwv@acm.org>
- ;; Created: 09-Aug-1996
- ;; Keywords: comm www
- ;; X-URL: http://www.cs.brown.edu/people/nwv/
-
- ;; This file is part of GNU Emacs.
-
- ;; GNU Emacs is free software; you can redistribute it and/or modify
- ;; it under the terms of the GNU General Public License as published by
- ;; the Free Software Foundation; either version 2, or (at your option)
- ;; any later version.
-
- ;; GNU Emacs is distributed in the hope that it will be useful,
- ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
- ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ;; GNU General Public License for more details.
-
- ;; You should have received a copy of the GNU General Public License
- ;; along with GNU Emacs; see the file COPYING. If not, write to the
- ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- ;; Boston, MA 02111-1307, USA.
-
- ;;; Change Log:
-
- ;; [Version 1.5, 02-Jun-1997, nwv@acm.org] Prepared for first inclusion in GNU
- ;; Emacs distribution by merging in RMS' minor changes and moving some sample
- ;; Web site entries out. Also updated Lycos and Yahoo sample entries.
-
- ;; [Version 1.4, 17-Sep-1996, nwv@acm.org] Removed the evil "defconst-TEST"
- ;; that slipped into 1.3. Organized webjump-sample-sites and modified the
- ;; content a bit.
-
- ;; [Version 1.3, 30-Aug-1996, nwv@acm.org] Fixed broken `if' function in
- ;; `webjump-to-javaapi' (bugfix already posted). Added `webjump-to-iwin'.
- ;; Added comment on purpose of `webjump-sample-sites'. Added
- ;; `webjump-read-choice'.
-
- ;; [Version 1.2, 16-Aug-1996, nwv@acm.org] Oops, got Gamelan mixed up with
- ;; Digital Espresso somehow. Added `mirrors' builtin and used it for the
- ;; sample GNU Archive site. Added some other sample sites. Split sample sites
- ;; out into separate constant. Misc. small changes. Copyright has been
- ;; transferred to the FSF.
-
- ;; [Version 1.1, 10-Aug-1996, nwv@acm.org] Added missing call to
- ;; `webjump-url-fix' (thanks to Istvan Marko <mi@bgytf.hu> for pointing this
- ;; out). Added ``builtins'' concept in order to support `simple-query' builtin
- ;; for covering the majority of cases. Added a couple more sample sites.
-
- ;; [Version 1.0, 09-Aug-1996, nwv@acm.org] Wrote initial version and posted to
- ;; gnu.emacs.sources.
-
- ;;; Commentary:
-
- ;; WebJump provides a sort of ``programmable hotlist'' of Web sites that can
- ;; quickly be invoked in your Web browser. Each Web site in the hotlist has a
- ;; name, and you select the desired site name via a completing string prompt in
- ;; the minibuffer. The URL for each Web site is defined as a static string or
- ;; a built-in or custom function, allowing interactive prompting for
- ;; site-specific queries and options.
-
- ;; Note that WebJump was originally intended to complement your conventional
- ;; browser-based hotlist, not replace it. (Though there's no reason you
- ;; couldn't use WebJump for your entire hotlist if you were so inclined.)
-
- ;; The `webjump-sites' variable, which defines the hotlist, defaults to some
- ;; example sites. You'll probably want to override it with your own favorite
- ;; sites. The documentation for the variable describes the syntax.
-
- ;; You may wish to add something like the following to your `.emacs' file:
- ;;
- ;; (require 'webjump)
- ;; (global-set-key "\C-cj" 'webjump)
- ;; (setq webjump-sites
- ;; (append '(
- ;; ("My Home Page" . "www.someisp.net/users/joebobjr/")
- ;; ("Pop's Site" . "www.joebob-and-son.com/")
- ;; )
- ;; webjump-sample-sites))
- ;;
- ;; The above loads this package, binds `C-c j' to invoke WebJump, and adds your
- ;; personal favorite sites to the hotlist.
-
- ;; The `webjump-sample-sites' variable mostly contains some site entries that
- ;; are expected to be generally relevant to most Emacs users. Some additional
- ;; site entries are defined in the separate and more frequently updated
- ;; `webjump-plus' package, which is available from the author's Web site.
-
- ;; The `browse-url' package is used to submit URLs to the browser, so any
- ;; browser-specific configuration should be done there.
-
- ;; WebJump inherits a small amount code from my `altavista.el' package, and is
- ;; intended to obsolete that package.
-
- ;;; Code:
-
- ;;-------------------------------------------------------- Package Dependencies
-
- (require 'browse-url)
-
- ;;------------------------------------------------------------------- Constants
-
- (defvar webjump-version "1.5")
-
- (defvar webjump-sample-sites
- '(
-
- ;; FSF, not including Emacs-specific.
- ("GNU Project FTP Archive" .
- [mirrors "ftp://prep.ai.mit.edu/pub/gnu/"
- ;; ASIA:
- "ftp://ftp.cs.titech.ac.jp"
- "ftp://tron.um.u-tokyo.ac.jp/pub/GNU/prep"
- "ftp://cair-archive.kaist.ac.kr/pub/gnu"
- "ftp://ftp.nectec.or.th/pub/mirrors/gnu"
- ;; AUSTRALIA:
- "ftp://archie.au/gnu"
- "ftp://archie.oz/gnu"
- "ftp://archie.oz.au/gnu"
- ;; AFRICA:
- "ftp://ftp.sun.ac.za/pub/gnu"
- ;; MIDDLE-EAST:
- "ftp://ftp.technion.ac.il/pub/unsupported/gnu"
- ;; EUROPE:
- "ftp://irisa.irisa.fr/pub/gnu"
- "ftp://ftp.univ-lyon1.fr/pub/gnu"
- "ftp://ftp.mcc.ac.uk"
- "ftp://unix.hensa.ac.uk/mirrors/uunet/systems/gnu"
- "ftp://src.doc.ic.ac.uk/gnu"
- "ftp://ftp.ieunet.ie/pub/gnu"
- "ftp://ftp.eunet.ch"
- "ftp://nic.switch.ch/mirror/gnu"
- "ftp://ftp.informatik.rwth-aachen.de/pub/gnu"
- "ftp://ftp.informatik.tu-muenchen.de"
- "ftp://ftp.win.tue.nl/pub/gnu"
- "ftp://ftp.nl.net"
- "ftp://ftp.etsimo.uniovi.es/pub/gnu"
- "ftp://ftp.funet.fi/pub/gnu"
- "ftp://ftp.denet.dk"
- "ftp://ftp.stacken.kth.se"
- "ftp://isy.liu.se"
- "ftp://ftp.luth.se/pub/unix/gnu"
- "ftp://ftp.sunet.se/pub/gnu"
- "ftp://archive.eu.net"
- ;; SOUTH AMERICA:
- "ftp://ftp.inf.utfsm.cl/pub/gnu"
- "ftp://ftp.unicamp.br/pub/gnu"
- ;; WESTERN CANADA:
- "ftp://ftp.cs.ubc.ca/mirror2/gnu"
- ;; USA:
- "ftp://wuarchive.wustl.edu/systems/gnu"
- "ftp://labrea.stanford.edu"
- "ftp://ftp.digex.net/pub/gnu"
- "ftp://ftp.kpc.com/pub/mirror/gnu"
- "ftp://f.ms.uky.edu/pub3/gnu"
- "ftp://jaguar.utah.edu/gnustuff"
- "ftp://ftp.hawaii.edu/mirrors/gnu"
- "ftp://uiarchive.cso.uiuc.edu/pub/gnu"
- "ftp://ftp.cs.columbia.edu/archives/gnu/prep"
- "ftp://gatekeeper.dec.com/pub/GNU"
- "ftp://ftp.uu.net/systems/gnu"])
- ("GNU Project Home Page" . "www.fsf.org")
-
- ;; Emacs.
- ("Eieio" . "ftp.ultranet.com/pub/zappo/")
- ("Emacs Lisp Archive" .
- "ftp://archive.cis.ohio-state.edu/pub/gnu/emacs/elisp-archive/")
- ("Insidious Big Brother Database" . "home.netscape.com/people/jwz/bbdb/")
- ("Mailcrypt" . "cag-www.lcs.mit.edu/mailcrypt/")
- ("WebJump" . "http://www.cs.brown.edu/people/nwv/projects/webjump/")
- ("XEmacs Home" . "www.xemacs.org")
- ("Yahoo: Emacs" .
- "www.yahoo.com/Computers_and_Internet/Software/Text_Editors/Emacs/")
-
- ;; Internet search engines.
- ("AltaVista" .
- [simple-query
- "www.altavista.digital.com"
- "www.altavista.digital.com/cgi-bin/query?pg=aq&what=web&fmt=.&q="
- "&r=&d0=&d1="])
- ("Archie" .
- [simple-query "hoohoo.ncsa.uiuc.edu/cgi-bin/AA.pl"
- "hoohoo.ncsa.uiuc.edu/cgi-bin/AA.pl?query=" ""])
- ("Lycos" .
- [simple-query "www.lycos.com"
- "www.lycos.com/cgi-bin/pursuit?cat=lycos&query=" ""])
- ("Yahoo" .
- [simple-query "www.yahoo.com" "search.yahoo.com/bin/search?p=" ""])
-
- ;; Misc. general interest.
- ("Interactive Weather Information Network" . webjump-to-iwin)
- ("Usenet FAQs" .
- [simple-query "www.cis.ohio-state.edu/hypertext/faq/usenet/FAQ-List.html"
- "www.cis.ohio-state.edu/htbin/search-usenet-faqs/form?find="
- ""])
- ("RTFM Usenet FAQs by Group" .
- "ftp://rtfm.mit.edu/pub/usenet-by-group/")
- ("RTFM Usenet FAQs by Hierachy" .
- "ftp://rtfm.mit.edu/pub/usenet-by-hierarchy/")
- ("Webster" .
- [simple-query "c.gp.cs.cmu.edu:5103/prog/webster"
- "gs213.sp.cs.cmu.edu/prog/webster?" ""])
- ("X Consortium Archive". "ftp.x.org")
- ("Yahoo: Reference" . "www.yahoo.com/Reference/")
-
- ;; Computer social issues, privacy, professionalism.
- ("Association for Computing Machinery" . "www.acm.org")
- ("Computer Professionals for Social Responsibility" . "www.cpsr.org/dox/")
- ("Electronic Frontier Foundation" . "www.eff.org")
- ("IEEE Computer Society" . "www.computer.org")
- ("Pretty Good Privacy" . "web.mit.edu/network/pgp.html")
- ("Risks Digest" . webjump-to-risks)
-
- ;; Fun.
- ("Bastard Operator from Hell" . "www.replay.com/bofh/")
-
- )
- "Sample hotlist for WebJump. See the documentation for the `webjump'
- function and the `webjump-sites' variable.")
-
- (defvar webjump-state-to-postal-alist
- '(("Alabama" . "al") ("Alaska" . "ak") ("Arizona" . "az") ("Arkansas" . "ar")
- ("California" . "ca") ("Colorado" . "co") ("Connecticut" . "ct")
- ("Delaware" . "de") ("Florida" . "fl") ("Georgia" . "ga") ("Hawaii" . "hi")
- ("Idaho" . "id") ("Illinois" . "il") ("Indiana" . "in") ("Iowa" . "ia")
- ("Kansas" . "ks") ("Kentucky" . "ky") ("Louisiana" . "la") ("Maine" . "me")
- ("Maryland" . "md") ("Massachusetts" . "ma") ("Michigan" . "mi")
- ("Minnesota" . "mn") ("Mississippi" . "ms") ("Missouri" . "mo")
- ("Montana" . "mt") ("Nebraska" . "ne") ("Nevada" . "nv")
- ("New Hampshire" . "nh") ("New Jersey" . "nj") ("New Mexico" . "nm")
- ("New York" . "ny") ("North Carolina" . "nc") ("North Dakota" . "nd")
- ("Ohio" . "oh") ("Oklahoma" . "ok") ("Oregon" . "or")
- ("Pennsylvania" . "pa") ("Rhode Island" . "ri") ("South Carolina" . "sc")
- ("South Dakota" . "sd") ("Tennessee" . "tn") ("Texas" . "tx")
- ("Utah" . "ut") ("Vermont" . "vt") ("Virginia" . "va")
- ("Washington" . "wa") ("West Virginia" . "wv") ("Wisconsin" . "wi")
- ("Wyoming" . "wy")))
-
- ;;------------------------------------------------------------ Option Variables
-
- (defvar webjump-sites
- webjump-sample-sites
- "*Hotlist for WebJump.
-
- The hotlist is represented as an association list, with the CAR of each cell
- being the name of the Web site, and the CDR being the definition for the URL of
- that site. The URL definition can be a string (the URL), a vector (specifying
- a special \"builtin\" which returns a URL), a symbol (name of a function which
- returns a URL), or a list (which when `eval'ed yields a URL).
-
- If the URL definition is a vector, then a \"builtin\" is used. A builtin has a
- Lisp-like syntax, with the name as the first element of the vector, and any
- arguments as the following elements. The three current builtins are `name',
- which returns the name of the site as the URL, `simple-query', which
- returns a URL that is a function of a query entered by the user, and `mirrors',
- which allows the user to select from among multiple mirror sites for the same
- content.
-
- The first argument to the `simple-query' builtin is a static URL to use if the
- user enters a blank query. The second and third arguments are the prefix and
- suffix, respectively, to add to the encoded query the user enters. This
- builtin covers Web sites that have single-string searches with the query
- embedded in the URL.
-
- The arguments to the `mirrors' builtin are URLs of mirror sites.
-
- If the symbol of a function is given, then the function will be called with the
- Web site name (the one you specified in the CAR of the alist cell) as a
- parameter. This might come in handy for various kludges.
-
- For convenience, if the `http://', `ftp://', or `file://' prefix is missing
- from a URL, WebJump will make a guess at what you wanted and prepend it before
- submitting the URL.")
-
- ;;------------------------------------------------------- Sample Site Functions
-
- (defun webjump-to-iwin (name)
- (let ((prefix "http://iwin.nws.noaa.gov/")
- (state (webjump-read-choice name "state"
- (append '(("Puerto Rico" . "pr"))
- webjump-state-to-postal-alist))))
- (if state
- (concat prefix "iwin/" state "/"
- (webjump-read-choice name "option"
- '(("Hourly Report" . "hourly")
- ("State Forecast" . "state")
- ("Local Forecast" . "local")
- ("Zone Forecast" . "zone")
- ("Short-Term Forecast" . "shortterm")
- ("Weather Summary" . "summary")
- ("Public Information" . "public")
- ("Climatic Data" . "climate")
- ("Aviation Products" . "aviation")
- ("Hydro Products" . "hydro")
- ("Special Weather" . "special")
- ("Watches and Warnings" . "warnings"))
- "zone")
- ".html")
- prefix)))
-
- (defun webjump-to-risks (name)
- (let (issue volume)
- (if (and (setq volume (webjump-read-number (concat name " volume")))
- (setq issue (webjump-read-number (concat name " issue"))))
- (format "catless.ncl.ac.uk/Risks/%d.%02d.html" volume issue)
- "catless.ncl.ac.uk/Risks/")))
-
- ;;-------------------------------------------------------------- Core Functions
-
- ;;;###autoload
- (defun webjump ()
- "Jumps to a Web site from a programmable hotlist.
-
- See the documentation for the `webjump-sites' variable for how to customize the
- hotlist.
-
- Please submit bug reports and other feedback to the author, Neil W. Van Dyke
- <nwv@acm.org>.
-
- The latest version can be gotten from `http://www.cs.brown.edu/people/nwv/'.
- That Web site also contains `webjump-plus.el', a larger and more frequently
- updated sample WebJump hotlist."
- (interactive)
- (let* ((completion-ignore-case t)
- (item (assoc (completing-read "WebJump to site: " webjump-sites nil t)
- webjump-sites))
- (name (car item))
- (expr (cdr item)))
- (funcall browse-url-browser-function
- (webjump-url-fix
- (cond ((not expr) "")
- ((stringp expr) expr)
- ((vectorp expr) (webjump-builtin expr name))
- ((listp expr) (eval expr))
- ((symbolp expr)
- (if (fboundp expr)
- (funcall expr name)
- (error "WebJump URL function \"%s\" undefined." expr)))
- (t (error "WebJump URL expression for \"%s\" invalid."
- name)))))))
-
- (defun webjump-builtin (expr name)
- (if (< (length expr) 1)
- (error "WebJump URL builtin for \"%s\" empty." name))
- (let ((builtin (aref expr 0)))
- (cond
- ((eq builtin 'mirrors)
- (if (= (length expr) 1)
- (error
- "WebJump URL builtin \"mirrors\" for \"%s\" needs at least 1 arg."))
- (webjump-choose-mirror name (cdr (append expr nil))))
- ((eq builtin 'name)
- name)
- ((eq builtin 'simple-query)
- (webjump-builtin-check-args expr name 3)
- (webjump-do-simple-query name (aref expr 1) (aref expr 2) (aref expr 3)))
- (t (error "WebJump URL builtin \"%s\" for \"%s\" invalid."
- builtin name)))))
-
- (defun webjump-builtin-check-args (expr name count)
- (or (= (length expr) (1+ count))
- (error "WebJump URL builtin \"%s\" for \"%s\" needs %d args."
- (aref expr 0) name count)))
-
- (defun webjump-choose-mirror (name urls)
- (webjump-read-url-choice (concat name " mirror")
- urls
- (webjump-mirror-default urls)))
-
- (defun webjump-do-simple-query (name noquery-url query-prefix query-suffix)
- (let ((query (webjump-read-string (concat name " query"))))
- (if query
- (concat query-prefix (webjump-url-encode query) query-suffix)
- noquery-url)))
-
- (defun webjump-mirror-default (urls)
- ;; Note: This should be modified to apply some simple kludges/heuristics to
- ;; pick a site which is likely "close". As a tie-breaker among candidates
- ;; judged equally desirable, randomness might be used.
- (car urls))
-
- (defun webjump-read-choice (name what choices &optional default)
- (let* ((completion-ignore-case t)
- (choice (completing-read (concat name " " what ": ") choices nil t)))
- (if (webjump-null-or-blank-string-p choice)
- default
- (cdr (assoc choice choices)))))
-
- (defun webjump-read-number (prompt)
- ;; Note: I should make this more robust someday.
- (let ((input (webjump-read-string prompt)))
- (if input (string-to-number input))))
-
- (defun webjump-read-string (prompt)
- (let ((input (read-string (concat prompt ": "))))
- (if (webjump-null-or-blank-string-p input) nil input)))
-
- (defun webjump-read-url-choice (what urls &optional default)
- ;; Note: Convert this to use `webjump-read-choice' someday.
- (let* ((completions (mapcar (function (lambda (n) (cons n n)))
- urls))
- (input (completing-read (concat what
- ;;(if default " (RET for default)" "")
- ": ")
- completions
- nil
- t)))
- (if (webjump-null-or-blank-string-p input)
- default
- (car (assoc input completions)))))
-
- (defun webjump-null-or-blank-string-p (str)
- (or (null str) (string-match "^[ \t]*$" str)))
-
- (defun webjump-url-encode (str)
- (mapconcat '(lambda (c)
- (cond ((= c 32) "+")
- ((or (and (>= c ?a) (<= c ?z))
- (and (>= c ?A) (<= c ?Z))
- (and (>= c ?0) (<= c ?9)))
- (char-to-string c))
- (t (upcase (format "%%%02x" c)))))
- str
- ""))
-
- (defun webjump-url-fix (url)
- (if (webjump-null-or-blank-string-p url)
- ""
- (webjump-url-fix-trailing-slash
- (cond
- ((string-match "^[a-zA-Z]+:" url) url)
- ((string-match "^/" url) (concat "file://" url))
- ((string-match "^\\([^\\./]+\\)" url)
- (concat (if (string= (downcase (match-string 1 url)) "ftp")
- "ftp"
- "http")
- "://"
- url))
- (t url)))))
-
- (defun webjump-url-fix-trailing-slash (url)
- (if (string-match "^[a-zA-Z]+://[^/]+$" url)
- (concat url "/")
- url))
-
- ;;-----------------------------------------------------------------------------
-
- (provide 'webjump)
-
- ;; webjump.el ends here
-