lisp/net/webjump.el

   1 ;;; webjump.el --- programmable Web hotlist
   2
   3 ;; Copyright (C) 1996-1997, 2001-2012 Free Software Foundation, Inc.
   4
   5 ;; Author:    Neil W. Van Dyke <nwv@acm.org>
   6 ;; Created:   09-Aug-1996
   7 ;; Keywords:  comm www
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25
  26 ;; WebJump provides a sort of ``programmable hotlist'' of Web sites that can
  27 ;; quickly be invoked in your Web browser.  Each Web site in the hotlist has a
  28 ;; name, and you select the desired site name via a completing string prompt in
  29 ;; the minibuffer.  The URL for each Web site is defined as a static string or
  30 ;; a built-in or custom function, allowing interactive prompting for
  31 ;; site-specific queries and options.
  32
  33 ;; Note that WebJump was originally intended to complement your conventional
  34 ;; browser-based hotlist, not replace it.  (Though there's no reason you
  35 ;; couldn't use WebJump for your entire hotlist if you were so inclined.)
  36
  37 ;; The `webjump-sites' variable, which defines the hotlist, defaults to some
  38 ;; example sites.  You'll probably want to override it with your own favorite
  39 ;; sites.  The documentation for the variable describes the syntax.
  40
  41 ;; You may wish to add something like the following to your init file:
  42 ;;
  43 ;;   (require 'webjump)
  44 ;;   (global-set-key "\C-cj" 'webjump)
  45 ;;   (setq webjump-sites
  46 ;;         (append '(
  47 ;;                   ("My Home Page" . "www.someisp.net/users/joebobjr/")
  48 ;;                   ("Pop's Site"   . "www.joebob-and-son.com/")
  49 ;;                   )
  50 ;;                 webjump-sample-sites))
  51 ;;
  52 ;; The above loads this package, binds `C-c j' to invoke WebJump, and adds your
  53 ;; personal favorite sites to the hotlist.
  54
  55 ;; The `webjump-sample-sites' variable mostly contains some site entries that
  56 ;; are expected to be generally relevant to many users, but excluding
  57 ;; those that the GNU project would not want to recommend.
  58
  59 ;; The `browse-url' package is used to submit URLs to the browser, so any
  60 ;; browser-specific configuration should be done there.
  61
  62 ;;; Code:
  63
  64 ;;-------------------------------------------------------- Package Dependencies
  65
  66 (require 'browse-url)
  67
  68 ;;------------------------------------------------------------------- Constants
  69
  70 (defvar webjump-sample-sites
  71   '(
  72     ;; FSF, not including Emacs-specific.
  73     ("GNU Project FTP Archive" .
  74      ;; GNU FTP Mirror List from http://www.gnu.org/order/ftp.html
  75      [mirrors "ftp://ftp.gnu.org/pub/gnu/"
  76               ;; United States
  77               "ftp://mirrors.kernel.org/gnu"
  78               "ftp://gatekeeper.dec.com/pub/GNU/"
  79               "ftp://ftp.keystealth.org/pub/gnu/"
  80               "ftp://mirrors.usc.edu/pub/gnu/"
  81               "ftp://cudlug.cudenver.edu/pub/mirrors/ftp.gnu.org/"
  82               "ftp://ftp.cise.ufl.edu/pub/mirrors/GNU/"
  83               "ftp://uiarchive.cso.uiuc.edu/pub/ftp/ftp.gnu.org/gnu/"
  84               "ftp://gnu.cs.lewisu.edu/gnu/"
  85               "ftp://ftp.in-span.net/pub/mirrors/ftp.gnu.org/"
  86               "ftp://gnu.ms.uky.edu/pub/mirrors/gnu/"
  87               "ftp://ftp.algx.net/pub/gnu/"
  88               "ftp://aeneas.mit.edu/pub/gnu/"
  89               "ftp://ftp.egr.msu.edu/pub/gnu/"
  90               "ftp://ftp.wayne.edu/pub/gnu/"
  91               "ftp://wuarchive.wustl.edu/mirrors/gnu/"
  92               "ftp://gnu.teleglobe.net/ftp.gnu.org/"
  93               "ftp://ftp.cs.columbia.edu/archives/gnu/prep/"
  94               "ftp://ftp.ece.cornell.edu/pub/mirrors/gnu/"
  95               "ftp://ftp.ibiblio.org/pub/mirrors/gnu/"
  96               "ftp://ftp.cis.ohio-state.edu/mirror/gnu/"
  97               "ftp://ftp.club.cc.cmu.edu/gnu/"
  98               "ftp://ftp.sunsite.utk.edu/pub/gnu/ftp/"
  99               "ftp://thales.memphis.edu/pub/gnu/"
 100               "ftp://gnu.wwc.edu"
 101               "ftp://ftp.twtelecom.net/pub/GNU/"
 102               ;; Africa
 103               "ftp://ftp.sun.ac.za/mirrorsites/ftp.gnu.org"
 104               ;; The Americas
 105               "ftp://ftp.unicamp.br/pub/gnu/"
 106               "ftp://master.softaplic.com.br/pub/gnu/"
 107               "ftp://ftp.matrix.com.br/pub/gnu/"
 108               "ftp://ftp.pucpr.br/gnu"
 109               "ftp://ftp.linorg.usp.br/gnu"
 110               "ftp://ftp.cs.ubc.ca/mirror2/gnu/"
 111               "ftp://cs.ubishops.ca/pub/ftp.gnu.org/"
 112               "ftp://ftp.inf.utfsm.cl/pub/gnu/"
 113               "ftp://sunsite.ulatina.ac.cr/Mirrors/GNU/"
 114               "ftp://www.gnu.unam.mx/pub/gnu/software/"
 115               "ftp://gnu.cem.itesm.mx/pub/mirrors/gnu.org/"
 116               "ftp://ftp.azc.uam.mx/mirrors/gnu/"
 117               ;; Australia
 118               "ftp://mirror.aarnet.edu.au/pub/gnu/"
 119               "ftp://gnu.mirror.pacific.net.au/gnu/"
 120               ;; Asia
 121               "ftp://ftp.cs.cuhk.edu.hk/pub/gnu/gnu/"
 122               "ftp://sunsite.ust.hk/pub/gnu/"
 123               "ftp://ftp.gnupilgrims.org/pub/gnu"
 124               "ftp://www.imtech.res.in/mirror/gnuftp/"
 125               "ftp://kambing.vlsm.org/gnu"
 126               "ftp://ftp.cs.huji.ac.il/mirror/GNU/"
 127               "ftp://tron.um.u-tokyo.ac.jp/pub/GNU/"
 128               "ftp://core.ring.gr.jp/pub/GNU/"
 129               "ftp://ftp.ring.gr.jp/pub/GNU/"
 130               "ftp://mirrors.hbi.co.jp/gnu/"
 131               "ftp://ftp.cs.titech.ac.jp/pub/gnu/"
 132               "ftp://ftpmirror.hanyang.ac.kr/GNU/"
 133               "ftp://ftp.linux.sarang.net/mirror/gnu/gnu/"
 134               "ftp://ftp.xgate.co.kr/pub/mirror/gnu/"
 135               "ftp://ftp://gnu.xinicks.com/"
 136               "ftp://ftp.isu.net.sa/pub/gnu/"
 137               "ftp://ftp.nctu.edu.tw/UNIX/gnu/"
 138               "ftp://coda.nctu.edu.tw/UNIX/gnu/"
 139               "ftp://ftp1.sinica.edu.tw/pub3/GNU/gnu/"
 140               "ftp://gnu.cdpa.nsysu.edu.tw/gnu"
 141               "ftp://ftp.nectec.or.th/pub/mirrors/gnu/"
 142               ;; Europe
 143               "ftp://ftp.gnu.vbs.at/"
 144               "ftp://ftp.univie.ac.at/packages/gnu/"
 145               "ftp://gd.tuwien.ac.at/gnu/gnusrc/"
 146               "ftp://ftp.belnet.be/mirror/ftp.gnu.org/"
 147               "ftp://gnu.blic.net/pub/gnu/"
 148               "ftp://ftp.fi.muni.cz/pub/gnu/"
 149               "ftp://ftp.dkuug.dk/pub/gnu/"
 150               "ftp://sunsite.dk/mirrors/gnu"
 151               "ftp://ftp.funet.fi/pub/gnu/prep/"
 152               "ftp://ftp.irisa.fr/pub/gnu/"
 153               "ftp://ftp.cs.univ-paris8.fr/mirrors/ftp.gnu.org/"
 154               "ftp://ftp.cs.tu-berlin.de/pub/gnu/"
 155               "ftp://ftp.leo.org/pub/comp/os/unix/gnu/"
 156               "ftp://ftp.informatik.rwth-aachen.de/pub/gnu/"
 157               "ftp://ftp.de.uu.net/pub/gnu/"
 158               "ftp://ftp.freenet.de/pub/ftp.gnu.org/gnu/"
 159               "ftp://ftp.cs.uni-bonn.de/pub/gnu/"
 160               "ftp://ftp-stud.fht-esslingen.de/pub/Mirrors/ftp.gnu.org/"
 161               "ftp://ftp.stw-bonn.de/pub/mirror/ftp.gnu.org/"
 162               "ftp://ftp.math.uni-bremen.de/pub/gnu"
 163               "ftp://ftp.forthnet.gr/pub/gnu/"
 164               "ftp://ftp.ntua.gr/pub/gnu/"
 165               "ftp://ftp.duth.gr/pub/gnu/"
 166               "ftp://ftp.physics.auth.gr/pub/gnu/"
 167               "ftp://ftp.esat.net/pub/gnu/"
 168               "ftp://ftp.heanet.ie/mirrors/ftp.gnu.org"
 169               "ftp://ftp.lugroma2.org/pub/gnu/"
 170               "ftp://ftp.gnu.inetcosmos.org/pub/gnu/"
 171               "ftp://ftp.digitaltrust.it/pub/gnu"
 172               "ftp://ftp://rm.mirror.garr.it/mirrors/gnuftp"
 173               "ftp://ftp.nluug.nl/pub/gnu/"
 174               "ftp://ftp.mirror.nl/pub/mirror/gnu/"
 175               "ftp://ftp.nl.uu.net/pub/gnu/"
 176               "ftp://mirror.widexs.nl/pub/gnu/"
 177               "ftp://ftp.easynet.nl/mirror/GNU/"
 178               "ftp://ftp.win.tue.nl/pub/gnu"
 179               "ftp://gnu.mirror.vuurwerk.net/pub/GNU/"
 180               "ftp://gnu.kookel.org/pub/ftp.gnu.org/"
 181               "ftp://ftp.uninett.no/pub/gnu/"
 182               "ftp://ftp.task.gda.pl/pub/gnu/"
 183               "ftp://sunsite.icm.edu.pl/pub/gnu/"
 184               "ftp://ftp.man.poznan.pl/pub/gnu"
 185               "ftp://ftp.ist.utl.pt/pub/GNU/gnu/"
 186               "ftp://ftp.telepac.pt/pub/gnu/"
 187               "ftp://ftp.timisoara.roedu.net/mirrors/ftp.gnu.org/pub/gnu"
 188               "ftp://ftp.chg.ru/pub/gnu/"
 189               "ftp://gnuftp.axitel.ru/"
 190               "ftp://ftp.arnes.si/software/gnu/"
 191               "ftp://ftp.etsimo.uniovi.es/pub/gnu/"
 192               "ftp://ftp.rediris.es/pub/gnu/"
 193               "ftp://ftp.chl.chalmers.se/pub/gnu/"
 194               "ftp://ftp.isy.liu.se/pub/gnu/"
 195               "ftp://ftp.luth.se/pub/unix/gnu/"
 196               "ftp://ftp.stacken.kth.se/pub/gnu/"
 197               "ftp://ftp.sunet.se/pub/gnu/"
 198               "ftp://sunsite.cnlab-switch.ch/mirror/gnu/"
 199               "ftp://ftp.ulak.net.tr/gnu/"
 200               "ftp://ftp.gnu.org.ua"
 201               "ftp://ftp.mcc.ac.uk/pub/gnu/"
 202               "ftp://ftp.mirror.ac.uk/sites/ftp.gnu.org/gnu/"
 203               "ftp://ftp.warwick.ac.uk/pub/gnu/"
 204               "ftp://ftp.hands.com/ftp.gnu.org/"
 205               "ftp://gnu.teleglobe.net/ftp.gnu.org/"])
 206     ("GNU Project Home Page" . "www.gnu.org")
 207
 208     ;; Emacs.
 209     ("Emacs Home Page" .
 210      "www.gnu.org/software/emacs/emacs.html")
 211     ("Savannah Emacs page" .
 212      "savannah.gnu.org/projects/emacs")
 213     ("Emacs Lisp List" .
 214      "www.damtp.cam.ac.uk/user/eglen/emacs/ell.html")
 215     ("Emacs Wiki" .
 216      [simple-query "www.emacswiki.org"
 217                    "www.emacswiki.org/cgi-bin/wiki/" ""])
 218
 219     ;; Internet search engines.
 220     ("Google" .
 221      [simple-query "www.google.com"
 222                    "www.google.com/search?q=" ""])
 223     ("Google Groups" .
 224      [simple-query "groups.google.com"
 225                    "groups.google.com/groups?q=" ""])
 226     ("Yahoo" .
 227      [simple-query "www.yahoo.com" "search.yahoo.com/search?p=" ""])
 228     ("Yahoo: Reference" . "www.yahoo.com/Reference/")
 229     ("Wikipedia" .
 230      [simple-query "wikipedia.org" "wikipedia.org/wiki/" ""])
 231
 232     ;; Misc. general interest.
 233     ("Interactive Weather Information Network" . webjump-to-iwin)
 234     ("Usenet FAQs" .
 235      "www.faqs.org/faqs/")
 236     ("RTFM Usenet FAQs by Group" .
 237      "ftp://rtfm.mit.edu/pub/usenet-by-group/")
 238     ("RTFM Usenet FAQs by Hierarchy" .
 239      "ftp://rtfm.mit.edu/pub/usenet-by-hierarchy/")
 240     ("X Consortium Archive" . "ftp.x.org")
 241
 242     ;; Computer social issues, privacy, professionalism.
 243     ("Association for Computing Machinery" . "www.acm.org")
 244     ("Computer Professionals for Social Responsibility" . "www.cpsr.org")
 245     ("Electronic Frontier Foundation" . "www.eff.org")
 246     ("IEEE Computer Society" . "www.computer.org")
 247     ("Risks Digest" . webjump-to-risks)
 248
 249     ;; More.
 250     ("Supplemental Web site list for webjump" .
 251      "www.neilvandyke.org/webjump/")
 252
 253     )
 254   "Sample hotlist for WebJump.  See the documentation for the `webjump'
 255 function and the `webjump-sites' variable.")
 256
 257 (defvar webjump-state-to-postal-alist
 258   '(("Alabama" . "al") ("Alaska" . "ak") ("Arizona" . "az") ("Arkansas" . "ar")
 259     ("California" . "ca") ("Colorado" . "co") ("Connecticut" . "ct")
 260     ("Delaware" . "de") ("Florida" . "fl") ("Georgia" . "ga") ("Hawaii" . "hi")
 261     ("Idaho" . "id") ("Illinois" . "il") ("Indiana" . "in") ("Iowa" . "ia")
 262     ("Kansas" . "ks") ("Kentucky" . "ky") ("Louisiana" . "la") ("Maine" . "me")
 263     ("Maryland" . "md") ("Massachusetts" . "ma") ("Michigan" . "mi")
 264     ("Minnesota" . "mn") ("Mississippi" . "ms") ("Missouri" . "mo")
 265     ("Montana" . "mt") ("Nebraska" . "ne") ("Nevada" . "nv")
 266     ("New Hampshire" . "nh") ("New Jersey" . "nj") ("New Mexico" . "nm")
 267     ("New York" . "ny") ("North Carolina" . "nc") ("North Dakota" . "nd")
 268     ("Ohio" . "oh") ("Oklahoma" . "ok") ("Oregon" . "or")
 269     ("Pennsylvania" . "pa") ("Rhode Island" . "ri") ("South Carolina" . "sc")
 270     ("South Dakota" . "sd") ("Tennessee" . "tn") ("Texas" . "tx")
 271     ("Utah" . "ut") ("Vermont" . "vt") ("Virginia" . "va")
 272     ("Washington" . "wa") ("West Virginia" . "wv") ("Wisconsin" . "wi")
 273     ("Wyoming" . "wy")))
 274
 275 ;;------------------------------------------------------------ Option Variables
 276
 277 (defvar webjump-sites
 278   webjump-sample-sites
 279   "Hotlist for WebJump.
 280
 281 The hotlist is represented as an association list, with the CAR of each cell
 282 being the name of the Web site, and the CDR being the definition for the URL of
 283 that site.  The URL definition can be a string (the URL), a vector (specifying
 284 a special \"builtin\" which returns a URL), a symbol (name of a function which
 285 returns a URL), or a list (which when `eval'ed yields a URL).
 286
 287 If the URL definition is a vector, then a \"builtin\" is used.  A builtin has a
 288 Lisp-like syntax, with the name as the first element of the vector, and any
 289 arguments as the following elements.  The three current builtins are `name',
 290 which returns the name of the site as the URL, `simple-query', which
 291 returns a URL that is a function of a query entered by the user, and `mirrors',
 292 which allows the user to select from among multiple mirror sites for the same
 293 content.
 294
 295 The first argument to the `simple-query' builtin is a static URL to use if the
 296 user enters a blank query.  The second and third arguments are the prefix and
 297 suffix, respectively, to add to the encoded query the user enters.  This
 298 builtin covers Web sites that have single-string searches with the query
 299 embedded in the URL.
 300
 301 The arguments to the `mirrors' builtin are URLs of mirror sites.
 302
 303 If the symbol of a function is given, then the function will be called with the
 304 Web site name (the one you specified in the CAR of the alist cell) as a
 305 parameter.  This might come in handy for various kludges.
 306
 307 For convenience, if the `http://', `ftp://', or `file://' prefix is missing
 308 from a URL, WebJump will make a guess at what you wanted and prepend it before
 309 submitting the URL.")
 310
 311 ;;------------------------------------------------------- Sample Site Functions
 312
 313 (defun webjump-to-iwin (name)
 314   (let ((prefix "http://iwin.nws.noaa.gov/")
 315         (state (webjump-read-choice name "state"
 316                                     (append '(("Puerto Rico" . "pr"))
 317                                             webjump-state-to-postal-alist))))
 318     (if state
 319         (concat prefix "iwin/" state "/"
 320                 (webjump-read-choice name "option"
 321                                      '(("Hourly Report" . "hourly")
 322                                        ("State Forecast" . "state")
 323                                        ("Local Forecast" . "local")
 324                                        ("Zone Forecast" . "zone")
 325                                        ("Short-Term Forecast" . "shortterm")
 326                                        ("Weather Summary" . "summary")
 327                                        ("Public Information" . "public")
 328                                        ("Climatic Data" . "climate")
 329                                        ("Aviation Products" . "aviation")
 330                                        ("Hydro Products" . "hydro")
 331                                        ("Special Weather" . "special")
 332                                        ("Watches and Warnings" . "warnings"))
 333                                      "zone")
 334                 ".html")
 335       prefix)))
 336
 337 (defun webjump-to-risks (name)
 338   (let (issue volume)
 339     (if (and (setq volume (webjump-read-number (concat name " volume")))
 340              (setq issue  (webjump-read-number (concat name " issue"))))
 341         (format "catless.ncl.ac.uk/Risks/%d.%02d.html" volume issue)
 342       "catless.ncl.ac.uk/Risks/")))
 343
 344 ;;-------------------------------------------------------------- Core Functions
 345
 346 ;;;###autoload
 347 (defun webjump ()
 348   "Jumps to a Web site from a programmable hotlist.
 349
 350 See the documentation for the `webjump-sites' variable for how to customize the
 351 hotlist.
 352
 353 Please submit bug reports and other feedback to the author, Neil W. Van Dyke
 354 <nwv@acm.org>."
 355   (interactive)
 356   (let* ((completion-ignore-case t)
 357          (item (assoc-string
 358                 (completing-read "WebJump to site: " webjump-sites nil t)
 359                 webjump-sites t))
 360          (name (car item))
 361          (expr (cdr item)))
 362     (browse-url (webjump-url-fix
 363                  (cond ((not expr) "")
 364                        ((stringp expr) expr)
 365                        ((vectorp expr) (webjump-builtin expr name))
 366                        ((listp expr) (eval expr))
 367                        ((symbolp expr)
 368                         (if (fboundp expr)
 369                             (funcall expr name)
 370                           (error "WebJump URL function \"%s\" undefined"
 371                                  expr)))
 372                        (t (error "WebJump URL expression for \"%s\" invalid"
 373                                  name)))))))
 374
 375 (defun webjump-builtin (expr name)
 376   (if (< (length expr) 1)
 377       (error "WebJump URL builtin for \"%s\" empty" name))
 378   (let ((builtin (aref expr 0)))
 379     (cond
 380      ((eq builtin 'mirrors)
 381       (if (= (length expr) 1)
 382           (error
 383            "WebJump URL builtin \"mirrors\" for \"%s\" needs at least 1 arg"
 384            name))
 385       (webjump-choose-mirror name (cdr (append expr nil))))
 386      ((eq builtin 'name)
 387       name)
 388      ((eq builtin 'simple-query)
 389       (webjump-builtin-check-args expr name 3)
 390       (webjump-do-simple-query name (aref expr 1) (aref expr 2) (aref expr 3)))
 391      (t (error "WebJump URL builtin \"%s\" for \"%s\" invalid"
 392                builtin name)))))
 393
 394 (defun webjump-builtin-check-args (expr name count)
 395   (or (= (length expr) (1+ count))
 396       (error "WebJump URL builtin \"%s\" for \"%s\" needs %d args"
 397              (aref expr 0) name count)))
 398
 399 (defun webjump-choose-mirror (name urls)
 400   (webjump-read-url-choice (concat name " mirror")
 401                            urls
 402                            (webjump-mirror-default urls)))
 403
 404 (defun webjump-do-simple-query (name noquery-url query-prefix query-suffix)
 405   (let ((query (webjump-read-string (concat name " query"))))
 406     (if query
 407         (concat query-prefix (webjump-url-encode query) query-suffix)
 408       noquery-url)))
 409
 410 (defun webjump-mirror-default (urls)
 411   ;; Note: This should be modified to apply some simple kludges/heuristics to
 412   ;; pick a site which is likely "close".  As a tie-breaker among candidates
 413   ;; judged equally desirable, randomness might be used.
 414   (car urls))
 415
 416 (defun webjump-read-choice (name what choices &optional default)
 417   (let* ((completion-ignore-case t)
 418          (choice (completing-read (concat name " " what ": ") choices nil t)))
 419     (if (webjump-null-or-blank-string-p choice)
 420         default
 421       (cdr (assoc choice choices)))))
 422
 423 (defun webjump-read-number (prompt)
 424   ;; Note: I should make this more robust someday.
 425   (let ((input (webjump-read-string prompt)))
 426     (if input (string-to-number input))))
 427
 428 (defun webjump-read-string (prompt)
 429   (let ((input (read-string (concat prompt ": "))))
 430     (if (webjump-null-or-blank-string-p input) nil input)))
 431
 432 (defun webjump-read-url-choice (what urls &optional default)
 433   ;; Note: Convert this to use `webjump-read-choice' someday.
 434   (let* ((completions (mapcar (function (lambda (n) (cons n n)))
 435                               urls))
 436          (input (completing-read (concat what
 437                                          ;;(if default " (RET for default)" "")
 438                                          ": ")
 439                                  completions
 440                                  nil
 441                                  t)))
 442     (if (webjump-null-or-blank-string-p input)
 443         default
 444       (car (assoc input completions)))))
 445
 446 (defun webjump-null-or-blank-string-p (str)
 447   (or (null str) (string-match "^[ \t]*$" str)))
 448
 449 (defun webjump-url-encode (str)
 450   (mapconcat (lambda (c)
 451                (let ((s (char-to-string c)))
 452                  (cond ((string= s " ") "+")
 453                        ((string-match "[a-zA-Z_.-/]" s) s)
 454                        (t (upcase (format "%%%02x" c))))))
 455              (encode-coding-string str 'utf-8)
 456              ""))
 457
 458 (defun webjump-url-fix (url)
 459   (if (webjump-null-or-blank-string-p url)
 460       ""
 461     (webjump-url-fix-trailing-slash
 462      (cond
 463       ((string-match "^[a-zA-Z]+:" url) url)
 464       ((string-match "^/" url) (concat "file://" url))
 465       ((string-match "^\\([^\\./]+\\)" url)
 466        (concat (if (string= (downcase (match-string 1 url)) "ftp")
 467                    "ftp"
 468                  "http")
 469                "://"
 470                url))
 471       (t url)))))
 472
 473 (defun webjump-url-fix-trailing-slash (url)
 474   (if (string-match "^[a-zA-Z]+://[^/]+$" url)
 475       (concat url "/")
 476     url))
 477
 478 ;;-----------------------------------------------------------------------------
 479
 480 (provide 'webjump)
 481
 482 ;;; webjump.el ends here