mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-23 07:19:15 +00:00
404 lines
16 KiB
EmacsLisp
404 lines
16 KiB
EmacsLisp
;;; webjump.el --- programmable Web hotlist
|
|
|
|
;; Copyright (C) 1996, 1997 Free Software Foundation, Inc.
|
|
|
|
;; Author: Neil W. Van Dyke <nwv@acm.org>
|
|
;; Created: 09-Aug-1996
|
|
;; Keywords: comm www
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is free software; you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation; either version 2, or (at your option)
|
|
;; any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs; see the file COPYING. If not, write to the
|
|
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
;; Boston, MA 02111-1307, USA.
|
|
|
|
;;; Commentary:
|
|
|
|
;; 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 many users, but excluding
|
|
;; those that the GNU project would not want to recommend.
|
|
|
|
;; The `browse-url' package is used to submit URLs to the browser, so any
|
|
;; browser-specific configuration should be done there.
|
|
|
|
;;; Code:
|
|
|
|
;;-------------------------------------------------------- Package Dependencies
|
|
|
|
(require 'browse-url)
|
|
|
|
;;------------------------------------------------------------------- Constants
|
|
|
|
(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.gnu.ai.mit.edu")
|
|
|
|
;; Emacs.
|
|
("Emacs Lisp Archive" .
|
|
"ftp://ftp.cis.ohio-state.edu/pub/gnu/emacs/elisp-archive/")
|
|
|
|
;; 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/")
|
|
("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")
|
|
("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>."
|
|
(interactive)
|
|
(let* ((completion-ignore-case t)
|
|
(item (assoc-ignore-case
|
|
(completing-read "WebJump to site: " webjump-sites nil t)
|
|
webjump-sites))
|
|
(name (car item))
|
|
(expr (cdr item)))
|
|
(browse-url (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
|