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8749abea | 1 | ;;; webjump.el --- programmable Web hotlist |
a1506d29 | 2 | |
acaf905b | 3 | ;; Copyright (C) 1996-1997, 2001-2012 Free Software Foundation, Inc. |
8749abea GM |
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 | ||
874a927a | 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
8749abea | 12 | ;; it under the terms of the GNU General Public License as published by |
874a927a GM |
13 | ;; the Free Software Foundation, either version 3 of the License, or |
14 | ;; (at your option) any later version. | |
8749abea GM |
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 | |
874a927a | 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
8749abea GM |
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 `.emacs' 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 | '( | |
8749abea GM |
72 | ;; FSF, not including Emacs-specific. |
73 | ("GNU Project FTP Archive" . | |
2122c750 | 74 | ;; GNU FTP Mirror List from http://www.gnu.org/order/ftp.html |
8749abea | 75 | [mirrors "ftp://ftp.gnu.org/pub/gnu/" |
2122c750 JL |
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/" | |
8749abea | 178 | "ftp://ftp.win.tue.nl/pub/gnu" |
2122c750 JL |
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/"]) | |
8749abea GM |
206 | ("GNU Project Home Page" . "www.gnu.org") |
207 | ||
208 | ;; Emacs. | |
2122c750 JL |
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/" ""]) | |
8749abea GM |
218 | |
219 | ;; Internet search engines. | |
2122c750 JL |
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=" ""]) | |
a1506d29 | 226 | ("Yahoo" . |
2122c750 JL |
227 | [simple-query "www.yahoo.com" "search.yahoo.com/search?p=" ""]) |
228 | ("Yahoo: Reference" . "www.yahoo.com/Reference/") | |
924e26eb JB |
229 | ("Wikipedia" . |
230 | [simple-query "wikipedia.org" "wikipedia.org/wiki/" ""]) | |
8749abea GM |
231 | |
232 | ;; Misc. general interest. | |
233 | ("Interactive Weather Information Network" . webjump-to-iwin) | |
a1506d29 | 234 | ("Usenet FAQs" . |
2122c750 | 235 | "www.faqs.org/faqs/") |
8749abea GM |
236 | ("RTFM Usenet FAQs by Group" . |
237 | "ftp://rtfm.mit.edu/pub/usenet-by-group/") | |
f6b1b0a8 | 238 | ("RTFM Usenet FAQs by Hierarchy" . |
8749abea GM |
239 | "ftp://rtfm.mit.edu/pub/usenet-by-hierarchy/") |
240 | ("X Consortium Archive" . "ftp.x.org") | |
8749abea GM |
241 | |
242 | ;; Computer social issues, privacy, professionalism. | |
243 | ("Association for Computing Machinery" . "www.acm.org") | |
2122c750 | 244 | ("Computer Professionals for Social Responsibility" . "www.cpsr.org") |
8749abea GM |
245 | ("Electronic Frontier Foundation" . "www.eff.org") |
246 | ("IEEE Computer Society" . "www.computer.org") | |
247 | ("Risks Digest" . webjump-to-risks) | |
248 | ||
2122c750 JL |
249 | ;; More. |
250 | ("Supplemental Web site list for webjump" . | |
251 | "www.neilvandyke.org/webjump/") | |
8749abea GM |
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) | |
af2c6038 | 357 | (item (assoc-string |
8749abea | 358 | (completing-read "WebJump to site: " webjump-sites nil t) |
af2c6038 | 359 | webjump-sites t)) |
8749abea GM |
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) | |
a1506d29 | 370 | (error "WebJump URL function \"%s\" undefined" |
8749abea | 371 | expr))) |
e8af40ee | 372 | (t (error "WebJump URL expression for \"%s\" invalid" |
8749abea GM |
373 | name))))))) |
374 | ||
375 | (defun webjump-builtin (expr name) | |
376 | (if (< (length expr) 1) | |
e8af40ee | 377 | (error "WebJump URL builtin for \"%s\" empty" name)) |
8749abea GM |
378 | (let ((builtin (aref expr 0))) |
379 | (cond | |
380 | ((eq builtin 'mirrors) | |
381 | (if (= (length expr) 1) | |
382 | (error | |
d7f9eef0 AS |
383 | "WebJump URL builtin \"mirrors\" for \"%s\" needs at least 1 arg" |
384 | name)) | |
8749abea GM |
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))) | |
e8af40ee | 391 | (t (error "WebJump URL builtin \"%s\" for \"%s\" invalid" |
8749abea GM |
392 | builtin name))))) |
393 | ||
394 | (defun webjump-builtin-check-args (expr name count) | |
395 | (or (= (length expr) (1+ count)) | |
e8af40ee | 396 | (error "WebJump URL builtin \"%s\" for \"%s\" needs %d args" |
8749abea GM |
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)))) | |
a1506d29 | 427 | |
8749abea GM |
428 | (defun webjump-read-string (prompt) |
429 | (let ((input (read-string (concat prompt ": ")))) | |
430 | (if (webjump-null-or-blank-string-p input) nil input))) | |
a1506d29 | 431 | |
8749abea GM |
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]*$" str))) | |
448 | ||
449 | (defun webjump-url-encode (str) | |
4f91a816 SM |
450 | (mapconcat (lambda (c) |
451 | (let ((s (char-to-string c))) | |
452 | (cond ((string= s " ") "+") | |
453 | ((string-match "[a-zA-Z_.-/]" s) s) | |
454 | (t (upcase (format "%%%02x" c)))))) | |
80f462b7 KH |
455 | (encode-coding-string str 'utf-8) |
456 | "")) | |
8749abea GM |
457 | |
458 | (defun webjump-url-fix (url) | |
459 | (if (webjump-null-or-blank-string-p url) | |
460 | "" | |
461 | (webjump-url-fix-trailing-slash | |
462 | (cond | |
463 | ((string-match "^[a-zA-Z]+:" url) url) | |
464 | ((string-match "^/" url) (concat "file://" url)) | |
465 | ((string-match "^\\([^\\./]+\\)" url) | |
466 | (concat (if (string= (downcase (match-string 1 url)) "ftp") | |
467 | "ftp" | |
468 | "http") | |
469 | "://" | |
470 | url)) | |
471 | (t url))))) | |
472 | ||
473 | (defun webjump-url-fix-trailing-slash (url) | |
474 | (if (string-match "^[a-zA-Z]+://[^/]+$" url) | |
475 | (concat url "/") | |
476 | url)) | |
477 | ||
478 | ;;----------------------------------------------------------------------------- | |
479 | ||
480 | (provide 'webjump) | |
481 | ||
e8af40ee | 482 | ;;; webjump.el ends here |