modules/webjump.js

   1 /**
   2  * (C) Copyright 2004-2007 Shawn Betts
   3  * (C) Copyright 2007-2008 John J. Foerch
   4  * (C) Copyright 2007-2008 Jeremy Maitin-Shepard
   5  *
   6  * Use, modification, and distribution are subject to the terms specified in the
   7  * COPYING file.
   8 **/
   9
  10 //// web jump stuff
  11
  12 var webjumps = new string_hashmap();
  13
  14 define_keywords("$completer", "$description", "$no_argument");
  15 function define_webjump(key, handler) {
  16     keywords(arguments);
  17
  18     var no_argument = arguments.$no_argument;
  19
  20     if (typeof(handler) == "string") {
  21         let template = handler;
  22         let b = template.indexOf('%s');
  23         if (b == -1)
  24             no_argument = true;
  25         handler = function (arg) {
  26             var a = b + 2;
  27             // Just return the same string if it doesn't contain a %s
  28             if (b == -1)
  29                 return template;
  30             else
  31                 return template.substr(0,b) + encodeURIComponent(arg) + template.substring(a);
  32         };
  33     }
  34     webjumps.put(key,
  35                  {key: key,
  36                   handler: handler, completer: arguments.$completer,
  37                   description: arguments.$description,
  38                   no_argument: no_argument});
  39 }
  40
  41 // Compatibility
  42 var add_webjump = define_webjump;
  43
  44 function add_delicious_webjumps (username)
  45 {
  46     add_webjump("delicious", " http://del.icio.us/" + username);
  47     add_webjump("adelicious", "javascript:location.href='http://del.icio.us/" + username + "?v=2&url='+encodeURIComponent(location.href)+'&title='+encodeURIComponent(document.title);");
  48     add_webjump("sdelicious", " http://del.icio.us/search/?search=%s");
  49     add_webjump("sadelicious", " http://del.icio.us/search/all?search=%s");
  50 }
  51
  52 function clear_webjumps()
  53 {
  54     webjumps = {};
  55 }
  56
  57 // Some built in web jumps
  58 function define_default_webjumps()
  59 {
  60     add_webjump("conkerorwiki",
  61                 "http://conkeror.org/?action=fullsearch&context=60&value=%s&fullsearch=Text");
  62     add_webjump("lucky",      "http://www.google.com/search?q=%s&btnI=I'm Feeling Lucky");
  63     add_webjump("maps",       "http://maps.google.com/?q=%s");
  64     add_webjump("scholar",    "http://scholar.google.com/scholar?q=%s");
  65     add_webjump("clusty",     "http://www.clusty.com/search?query=%s");
  66     add_webjump("slang",      "http://www.urbandictionary.com/define.php?term=%s");
  67     add_webjump("dictionary", "http://dictionary.reference.com/search?q=%s");
  68     add_webjump("xulplanet",  "http://www.google.com/custom?q=%s&cof=S%3A"+
  69                 "http%3A%2F%2Fwww.xulplanet.com%3BAH%3Aleft%3BLH%3A65%3BLC"+
  70                 "%3A4682B4%3BL%3Ahttp%3A%2F%2Fwww.xulplanet.com%2Fimages%2F"+
  71                 "xulplanet.png%3BALC%3Ablue%3BLW%3A215%3BAWFID%3A0979f384d5"+
  72                 "181409%3B&domains=xulplanet.com&sitesearch=xulplanet.com&sa=Go");
  73     add_webjump("image",      "http://images.google.com/images?q=%s");
  74     add_webjump("clhs",       "http://www.xach.com/clhs?q=%s");
  75     add_webjump("emacswiki",  "http://www.emacswiki.org/cgi-bin/wiki?search=%s");
  76     add_webjump("cliki",      "http://www.cliki.net/admin/search?words=%s");
  77     add_webjump("ratpoisonwiki", "http://ratpoison.antidesktop.net/?search=%s");
  78     add_webjump("stumpwmwiki", "http://stumpwm.antidesktop.net/wiki?search=%s");
  79     add_webjump("savannah", "http://savannah.gnu.org/search/?words=%s&type_of_search=soft&Search=Search&exact=1");
  80     add_webjump("sourceforge", "http://sourceforge.net/search/?words=%s");
  81     add_webjump("freshmeat", "http://freshmeat.net/search/?q=%s");
  82     add_webjump("slashdot", "http://slashdot.org/search.pl?query=%s");
  83     add_webjump("kuro5hin", "http://www.kuro5hin.org/?op=search&string=%s");
  84     add_webjump("sheldonbrown",     "http://www.google.com/search?q=site:sheldonbrown.com %s");
  85     add_webjump("youtube", "http://www.youtube.com/results?search_query=%s&search=Search");
  86 }
  87
  88 function match_webjump(str) {
  89     var sp = str.indexOf(' ');
  90
  91     var key, arg;
  92     if (sp == -1) {
  93         key = str;
  94         arg = null;
  95     } else {
  96         key = str.substring(0, sp);
  97         arg = str.substring(sp + 1);
  98     }
  99
 100     // Look for an exact match
 101     var match = webjumps.get(key);
 102
 103     // Look for a partial match
 104     if (!match) {
 105         for (let [k,v] in webjumps.iterator()) {
 106             if (k.substring(0, key.length) == key) {
 107                 if (match) {
 108                     // key is not a unique prefix, as there are multiple partial matches
 109                     return null;
 110                 }
 111                 match = v;
 112             }
 113         }
 114     }
 115
 116     if (match) {
 117         if (arg == null && !match.no_argument) {
 118             throw interactive_error('Webjump '+key+' requires an argument.');
 119         }
 120         return [match, key, arg];
 121     }
 122     return null;
 123 }
 124
 125
 126 function getWebJump(value)
 127 {
 128     var res = match_webjump(value);
 129     if (!res)
 130         return null;
 131     let [match,key,arg] = res;
 132     return match.handler(arg);
 133 }
 134
 135 function get_url_or_webjump(input)
 136 {
 137     var url = getWebJump(input);
 138
 139     if (url != null) {
 140         return url;
 141     } else {
 142         return input;
 143     }
 144 }
 145
 146 define_default_webjumps();
 147
 148 function webjump_completer()
 149 {
 150     let base_completer = prefix_completer(
 151         $completions = [ v for ([k,v] in webjumps.iterator()) ],
 152         $get_string = function (x) x.key + (x.no_argument ? "" : " "),
 153         $get_description = function (x) x.description || "");
 154
 155     return function(input, pos, conservative) {
 156         let str = input.substring(0,pos);
 157         let res;
 158         try { res = match_webjump(str); }
 159         catch (e) { res = null; }
 160         if (res) {
 161             let [match, key, arg] = res;
 162             if (arg != null) { // If there is no argument yet, we use the base completer
 163                 if (match.completer) {
 164                     let c = yield match.completer.call(null, arg, pos - key.length - 1, conservative);
 165                     yield co_return(nest_completions(c, match.key + " "));
 166                 }
 167                 yield co_return(null);
 168             }
 169         }
 170         yield co_return(base_completer(input, pos, conservative));
 171     }
 172 }