| 1 | ;;; webjump.el --- programmable Web hotlist |
| 2 | |
| 3 | ;; Copyright (C) 1996-1997, 2001-2014 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 | ("DuckDuckGo" . |
| 221 | [simple-query "duckduckgo.com" |
| 222 | "duckduckgo.com/?q=" ""]) |
| 223 | ("Google" . |
| 224 | [simple-query "www.google.com" |
| 225 | "www.google.com/search?q=" ""]) |
| 226 | ("Google Groups" . |
| 227 | [simple-query "groups.google.com" |
| 228 | "groups.google.com/groups?q=" ""]) |
| 229 | ("Yahoo" . |
| 230 | [simple-query "www.yahoo.com" "search.yahoo.com/search?p=" ""]) |
| 231 | ("Yahoo: Reference" . "www.yahoo.com/Reference/") |
| 232 | ("Wikipedia" . |
| 233 | [simple-query "wikipedia.org" "wikipedia.org/wiki/" ""]) |
| 234 | |
| 235 | ;; Misc. general interest. |
| 236 | ("Interactive Weather Information Network" . webjump-to-iwin) |
| 237 | ("Usenet FAQs" . |
| 238 | "www.faqs.org/faqs/") |
| 239 | ("RTFM Usenet FAQs by Group" . |
| 240 | "ftp://rtfm.mit.edu/pub/usenet-by-group/") |
| 241 | ("RTFM Usenet FAQs by Hierarchy" . |
| 242 | "ftp://rtfm.mit.edu/pub/usenet-by-hierarchy/") |
| 243 | ("X Consortium Archive" . "ftp.x.org") |
| 244 | |
| 245 | ;; Computer social issues, privacy, professionalism. |
| 246 | ("Association for Computing Machinery" . "www.acm.org") |
| 247 | ("Computer Professionals for Social Responsibility" . "www.cpsr.org") |
| 248 | ("Electronic Frontier Foundation" . "www.eff.org") |
| 249 | ("IEEE Computer Society" . "www.computer.org") |
| 250 | ("Risks Digest" . webjump-to-risks) |
| 251 | |
| 252 | ;; More. |
| 253 | ("Supplemental Web site list for webjump" . |
| 254 | "www.neilvandyke.org/webjump/") |
| 255 | |
| 256 | ) |
| 257 | "Sample hotlist for WebJump. See the documentation for the `webjump' |
| 258 | function and the `webjump-sites' variable.") |
| 259 | |
| 260 | (defvar webjump-state-to-postal-alist |
| 261 | '(("Alabama" . "al") ("Alaska" . "ak") ("Arizona" . "az") ("Arkansas" . "ar") |
| 262 | ("California" . "ca") ("Colorado" . "co") ("Connecticut" . "ct") |
| 263 | ("Delaware" . "de") ("Florida" . "fl") ("Georgia" . "ga") ("Hawaii" . "hi") |
| 264 | ("Idaho" . "id") ("Illinois" . "il") ("Indiana" . "in") ("Iowa" . "ia") |
| 265 | ("Kansas" . "ks") ("Kentucky" . "ky") ("Louisiana" . "la") ("Maine" . "me") |
| 266 | ("Maryland" . "md") ("Massachusetts" . "ma") ("Michigan" . "mi") |
| 267 | ("Minnesota" . "mn") ("Mississippi" . "ms") ("Missouri" . "mo") |
| 268 | ("Montana" . "mt") ("Nebraska" . "ne") ("Nevada" . "nv") |
| 269 | ("New Hampshire" . "nh") ("New Jersey" . "nj") ("New Mexico" . "nm") |
| 270 | ("New York" . "ny") ("North Carolina" . "nc") ("North Dakota" . "nd") |
| 271 | ("Ohio" . "oh") ("Oklahoma" . "ok") ("Oregon" . "or") |
| 272 | ("Pennsylvania" . "pa") ("Rhode Island" . "ri") ("South Carolina" . "sc") |
| 273 | ("South Dakota" . "sd") ("Tennessee" . "tn") ("Texas" . "tx") |
| 274 | ("Utah" . "ut") ("Vermont" . "vt") ("Virginia" . "va") |
| 275 | ("Washington" . "wa") ("West Virginia" . "wv") ("Wisconsin" . "wi") |
| 276 | ("Wyoming" . "wy"))) |
| 277 | |
| 278 | ;;------------------------------------------------------------ Option Variables |
| 279 | |
| 280 | (defvar webjump-sites |
| 281 | webjump-sample-sites |
| 282 | "Hotlist for WebJump. |
| 283 | |
| 284 | The hotlist is represented as an association list, with the CAR of each cell |
| 285 | being the name of the Web site, and the CDR being the definition for the URL of |
| 286 | that site. The URL definition can be a string (the URL), a vector (specifying |
| 287 | a special \"builtin\" which returns a URL), a symbol (name of a function which |
| 288 | returns a URL), or a list (which when `eval'ed yields a URL). |
| 289 | |
| 290 | If the URL definition is a vector, then a \"builtin\" is used. A builtin has a |
| 291 | Lisp-like syntax, with the name as the first element of the vector, and any |
| 292 | arguments as the following elements. The three current builtins are `name', |
| 293 | which returns the name of the site as the URL, `simple-query', which |
| 294 | returns a URL that is a function of a query entered by the user, and `mirrors', |
| 295 | which allows the user to select from among multiple mirror sites for the same |
| 296 | content. |
| 297 | |
| 298 | The first argument to the `simple-query' builtin is a static URL to use if the |
| 299 | user enters a blank query. The second and third arguments are the prefix and |
| 300 | suffix, respectively, to add to the encoded query the user enters. This |
| 301 | builtin covers Web sites that have single-string searches with the query |
| 302 | embedded in the URL. |
| 303 | |
| 304 | The arguments to the `mirrors' builtin are URLs of mirror sites. |
| 305 | |
| 306 | If the symbol of a function is given, then the function will be called with the |
| 307 | Web site name (the one you specified in the CAR of the alist cell) as a |
| 308 | parameter. This might come in handy for various kludges. |
| 309 | |
| 310 | For convenience, if the `http://', `ftp://', or `file://' prefix is missing |
| 311 | from a URL, WebJump will make a guess at what you wanted and prepend it before |
| 312 | submitting the URL.") |
| 313 | |
| 314 | ;;------------------------------------------------------- Sample Site Functions |
| 315 | |
| 316 | (defun webjump-to-iwin (name) |
| 317 | (let ((prefix "http://iwin.nws.noaa.gov/") |
| 318 | (state (webjump-read-choice name "state" |
| 319 | (append '(("Puerto Rico" . "pr")) |
| 320 | webjump-state-to-postal-alist)))) |
| 321 | (if state |
| 322 | (concat prefix "iwin/" state "/" |
| 323 | (webjump-read-choice name "option" |
| 324 | '(("Hourly Report" . "hourly") |
| 325 | ("State Forecast" . "state") |
| 326 | ("Local Forecast" . "local") |
| 327 | ("Zone Forecast" . "zone") |
| 328 | ("Short-Term Forecast" . "shortterm") |
| 329 | ("Weather Summary" . "summary") |
| 330 | ("Public Information" . "public") |
| 331 | ("Climatic Data" . "climate") |
| 332 | ("Aviation Products" . "aviation") |
| 333 | ("Hydro Products" . "hydro") |
| 334 | ("Special Weather" . "special") |
| 335 | ("Watches and Warnings" . "warnings")) |
| 336 | "zone") |
| 337 | ".html") |
| 338 | prefix))) |
| 339 | |
| 340 | (defun webjump-to-risks (name) |
| 341 | (let (issue volume) |
| 342 | (if (and (setq volume (webjump-read-number (concat name " volume"))) |
| 343 | (setq issue (webjump-read-number (concat name " issue")))) |
| 344 | (format "catless.ncl.ac.uk/Risks/%d.%02d.html" volume issue) |
| 345 | "catless.ncl.ac.uk/Risks/"))) |
| 346 | |
| 347 | ;;-------------------------------------------------------------- Core Functions |
| 348 | |
| 349 | ;;;###autoload |
| 350 | (defun webjump () |
| 351 | "Jumps to a Web site from a programmable hotlist. |
| 352 | |
| 353 | See the documentation for the `webjump-sites' variable for how to customize the |
| 354 | hotlist. |
| 355 | |
| 356 | Please submit bug reports and other feedback to the author, Neil W. Van Dyke |
| 357 | <nwv@acm.org>." |
| 358 | (interactive) |
| 359 | (let* ((completion-ignore-case t) |
| 360 | (item (assoc-string |
| 361 | (completing-read "WebJump to site: " webjump-sites nil t) |
| 362 | webjump-sites t)) |
| 363 | (name (car item)) |
| 364 | (expr (cdr item))) |
| 365 | (browse-url (webjump-url-fix |
| 366 | (cond ((not expr) "") |
| 367 | ((stringp expr) expr) |
| 368 | ((vectorp expr) (webjump-builtin expr name)) |
| 369 | ((listp expr) (eval expr)) |
| 370 | ((symbolp expr) |
| 371 | (if (fboundp expr) |
| 372 | (funcall expr name) |
| 373 | (error "WebJump URL function \"%s\" undefined" |
| 374 | expr))) |
| 375 | (t (error "WebJump URL expression for \"%s\" invalid" |
| 376 | name))))))) |
| 377 | |
| 378 | (defun webjump-builtin (expr name) |
| 379 | (if (< (length expr) 1) |
| 380 | (error "WebJump URL builtin for \"%s\" empty" name)) |
| 381 | (let ((builtin (aref expr 0))) |
| 382 | (cond |
| 383 | ((eq builtin 'mirrors) |
| 384 | (if (= (length expr) 1) |
| 385 | (error |
| 386 | "WebJump URL builtin \"mirrors\" for \"%s\" needs at least 1 arg" |
| 387 | name)) |
| 388 | (webjump-choose-mirror name (cdr (append expr nil)))) |
| 389 | ((eq builtin 'name) |
| 390 | name) |
| 391 | ((eq builtin 'simple-query) |
| 392 | (webjump-builtin-check-args expr name 3) |
| 393 | (webjump-do-simple-query name (aref expr 1) (aref expr 2) (aref expr 3))) |
| 394 | (t (error "WebJump URL builtin \"%s\" for \"%s\" invalid" |
| 395 | builtin name))))) |
| 396 | |
| 397 | (defun webjump-builtin-check-args (expr name count) |
| 398 | (or (= (length expr) (1+ count)) |
| 399 | (error "WebJump URL builtin \"%s\" for \"%s\" needs %d args" |
| 400 | (aref expr 0) name count))) |
| 401 | |
| 402 | (defun webjump-choose-mirror (name urls) |
| 403 | (webjump-read-url-choice (concat name " mirror") |
| 404 | urls |
| 405 | (webjump-mirror-default urls))) |
| 406 | |
| 407 | (defun webjump-do-simple-query (name noquery-url query-prefix query-suffix) |
| 408 | (let ((query (webjump-read-string (concat name " query")))) |
| 409 | (if query |
| 410 | (concat query-prefix (webjump-url-encode query) query-suffix) |
| 411 | noquery-url))) |
| 412 | |
| 413 | (defun webjump-mirror-default (urls) |
| 414 | ;; Note: This should be modified to apply some simple kludges/heuristics to |
| 415 | ;; pick a site which is likely "close". As a tie-breaker among candidates |
| 416 | ;; judged equally desirable, randomness might be used. |
| 417 | (car urls)) |
| 418 | |
| 419 | (defun webjump-read-choice (name what choices &optional default) |
| 420 | (let* ((completion-ignore-case t) |
| 421 | (choice (completing-read (concat name " " what ": ") choices nil t))) |
| 422 | (if (webjump-null-or-blank-string-p choice) |
| 423 | default |
| 424 | (cdr (assoc choice choices))))) |
| 425 | |
| 426 | (defun webjump-read-number (prompt) |
| 427 | ;; Note: I should make this more robust someday. |
| 428 | (let ((input (webjump-read-string prompt))) |
| 429 | (if input (string-to-number input)))) |
| 430 | |
| 431 | (defun webjump-read-string (prompt) |
| 432 | (let ((input (read-string (concat prompt ": ")))) |
| 433 | (if (webjump-null-or-blank-string-p input) nil input))) |
| 434 | |
| 435 | (defun webjump-read-url-choice (what urls &optional default) |
| 436 | ;; Note: Convert this to use `webjump-read-choice' someday. |
| 437 | (let* ((completions (mapcar (function (lambda (n) (cons n n))) |
| 438 | urls)) |
| 439 | (input (completing-read (concat what |
| 440 | ;;(if default " (RET for default)" "") |
| 441 | ": ") |
| 442 | completions |
| 443 | nil |
| 444 | t))) |
| 445 | (if (webjump-null-or-blank-string-p input) |
| 446 | default |
| 447 | (car (assoc input completions))))) |
| 448 | |
| 449 | (defun webjump-null-or-blank-string-p (str) |
| 450 | (or (null str) (string-match "^[ \t]*$" str))) |
| 451 | |
| 452 | (defun webjump-url-encode (str) |
| 453 | (mapconcat (lambda (c) |
| 454 | (let ((s (char-to-string c))) |
| 455 | (cond ((string= s " ") "+") |
| 456 | ((string-match "[a-zA-Z_.-/]" s) s) |
| 457 | (t (upcase (format "%%%02x" c)))))) |
| 458 | (encode-coding-string str 'utf-8) |
| 459 | "")) |
| 460 | |
| 461 | (defun webjump-url-fix (url) |
| 462 | (if (webjump-null-or-blank-string-p url) |
| 463 | "" |
| 464 | (webjump-url-fix-trailing-slash |
| 465 | (cond |
| 466 | ((string-match "^[a-zA-Z]+:" url) url) |
| 467 | ((string-match "^/" url) (concat "file://" url)) |
| 468 | ((string-match "^\\([^\\./]+\\)" url) |
| 469 | (concat (if (string= (downcase (match-string 1 url)) "ftp") |
| 470 | "ftp" |
| 471 | "http") |
| 472 | "://" |
| 473 | url)) |
| 474 | (t url))))) |
| 475 | |
| 476 | (defun webjump-url-fix-trailing-slash (url) |
| 477 | (if (string-match "^[a-zA-Z]+://[^/]+$" url) |
| 478 | (concat url "/") |
| 479 | url)) |
| 480 | |
| 481 | ;;----------------------------------------------------------------------------- |
| 482 | |
| 483 | (provide 'webjump) |
| 484 | |
| 485 | ;;; webjump.el ends here |