[659] | 1 | /* |
---|
| 2 | * searchtools.js_t |
---|
| 3 | * ~~~~~~~~~~~~~~~~ |
---|
| 4 | * |
---|
| 5 | * Sphinx JavaScript utilties for the full-text search. |
---|
| 6 | * |
---|
| 7 | * :copyright: Copyright 2007-2015 by the Sphinx team, see AUTHORS. |
---|
| 8 | * :license: BSD, see LICENSE for details. |
---|
| 9 | * |
---|
| 10 | */ |
---|
| 11 | |
---|
| 12 | |
---|
| 13 | /** |
---|
| 14 | * Porter Stemmer |
---|
| 15 | */ |
---|
| 16 | var Stemmer = function() { |
---|
| 17 | |
---|
| 18 | var step2list = { |
---|
| 19 | ational: 'ate', |
---|
| 20 | tional: 'tion', |
---|
| 21 | enci: 'ence', |
---|
| 22 | anci: 'ance', |
---|
| 23 | izer: 'ize', |
---|
| 24 | bli: 'ble', |
---|
| 25 | alli: 'al', |
---|
| 26 | entli: 'ent', |
---|
| 27 | eli: 'e', |
---|
| 28 | ousli: 'ous', |
---|
| 29 | ization: 'ize', |
---|
| 30 | ation: 'ate', |
---|
| 31 | ator: 'ate', |
---|
| 32 | alism: 'al', |
---|
| 33 | iveness: 'ive', |
---|
| 34 | fulness: 'ful', |
---|
| 35 | ousness: 'ous', |
---|
| 36 | aliti: 'al', |
---|
| 37 | iviti: 'ive', |
---|
| 38 | biliti: 'ble', |
---|
| 39 | logi: 'log' |
---|
| 40 | }; |
---|
| 41 | |
---|
| 42 | var step3list = { |
---|
| 43 | icate: 'ic', |
---|
| 44 | ative: '', |
---|
| 45 | alize: 'al', |
---|
| 46 | iciti: 'ic', |
---|
| 47 | ical: 'ic', |
---|
| 48 | ful: '', |
---|
| 49 | ness: '' |
---|
| 50 | }; |
---|
| 51 | |
---|
| 52 | var c = "[^aeiou]"; // consonant |
---|
| 53 | var v = "[aeiouy]"; // vowel |
---|
| 54 | var C = c + "[^aeiouy]*"; // consonant sequence |
---|
| 55 | var V = v + "[aeiou]*"; // vowel sequence |
---|
| 56 | |
---|
| 57 | var mgr0 = "^(" + C + ")?" + V + C; // [C]VC... is m>0 |
---|
| 58 | var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$"; // [C]VC[V] is m=1 |
---|
| 59 | var mgr1 = "^(" + C + ")?" + V + C + V + C; // [C]VCVC... is m>1 |
---|
| 60 | var s_v = "^(" + C + ")?" + v; // vowel in stem |
---|
| 61 | |
---|
| 62 | this.stemWord = function (w) { |
---|
| 63 | var stem; |
---|
| 64 | var suffix; |
---|
| 65 | var firstch; |
---|
| 66 | var origword = w; |
---|
| 67 | |
---|
| 68 | if (w.length < 3) |
---|
| 69 | return w; |
---|
| 70 | |
---|
| 71 | var re; |
---|
| 72 | var re2; |
---|
| 73 | var re3; |
---|
| 74 | var re4; |
---|
| 75 | |
---|
| 76 | firstch = w.substr(0,1); |
---|
| 77 | if (firstch == "y") |
---|
| 78 | w = firstch.toUpperCase() + w.substr(1); |
---|
| 79 | |
---|
| 80 | // Step 1a |
---|
| 81 | re = /^(.+?)(ss|i)es$/; |
---|
| 82 | re2 = /^(.+?)([^s])s$/; |
---|
| 83 | |
---|
| 84 | if (re.test(w)) |
---|
| 85 | w = w.replace(re,"$1$2"); |
---|
| 86 | else if (re2.test(w)) |
---|
| 87 | w = w.replace(re2,"$1$2"); |
---|
| 88 | |
---|
| 89 | // Step 1b |
---|
| 90 | re = /^(.+?)eed$/; |
---|
| 91 | re2 = /^(.+?)(ed|ing)$/; |
---|
| 92 | if (re.test(w)) { |
---|
| 93 | var fp = re.exec(w); |
---|
| 94 | re = new RegExp(mgr0); |
---|
| 95 | if (re.test(fp[1])) { |
---|
| 96 | re = /.$/; |
---|
| 97 | w = w.replace(re,""); |
---|
| 98 | } |
---|
| 99 | } |
---|
| 100 | else if (re2.test(w)) { |
---|
| 101 | var fp = re2.exec(w); |
---|
| 102 | stem = fp[1]; |
---|
| 103 | re2 = new RegExp(s_v); |
---|
| 104 | if (re2.test(stem)) { |
---|
| 105 | w = stem; |
---|
| 106 | re2 = /(at|bl|iz)$/; |
---|
| 107 | re3 = new RegExp("([^aeiouylsz])\\1$"); |
---|
| 108 | re4 = new RegExp("^" + C + v + "[^aeiouwxy]$"); |
---|
| 109 | if (re2.test(w)) |
---|
| 110 | w = w + "e"; |
---|
| 111 | else if (re3.test(w)) { |
---|
| 112 | re = /.$/; |
---|
| 113 | w = w.replace(re,""); |
---|
| 114 | } |
---|
| 115 | else if (re4.test(w)) |
---|
| 116 | w = w + "e"; |
---|
| 117 | } |
---|
| 118 | } |
---|
| 119 | |
---|
| 120 | // Step 1c |
---|
| 121 | re = /^(.+?)y$/; |
---|
| 122 | if (re.test(w)) { |
---|
| 123 | var fp = re.exec(w); |
---|
| 124 | stem = fp[1]; |
---|
| 125 | re = new RegExp(s_v); |
---|
| 126 | if (re.test(stem)) |
---|
| 127 | w = stem + "i"; |
---|
| 128 | } |
---|
| 129 | |
---|
| 130 | // Step 2 |
---|
| 131 | re = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/; |
---|
| 132 | if (re.test(w)) { |
---|
| 133 | var fp = re.exec(w); |
---|
| 134 | stem = fp[1]; |
---|
| 135 | suffix = fp[2]; |
---|
| 136 | re = new RegExp(mgr0); |
---|
| 137 | if (re.test(stem)) |
---|
| 138 | w = stem + step2list[suffix]; |
---|
| 139 | } |
---|
| 140 | |
---|
| 141 | // Step 3 |
---|
| 142 | re = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/; |
---|
| 143 | if (re.test(w)) { |
---|
| 144 | var fp = re.exec(w); |
---|
| 145 | stem = fp[1]; |
---|
| 146 | suffix = fp[2]; |
---|
| 147 | re = new RegExp(mgr0); |
---|
| 148 | if (re.test(stem)) |
---|
| 149 | w = stem + step3list[suffix]; |
---|
| 150 | } |
---|
| 151 | |
---|
| 152 | // Step 4 |
---|
| 153 | re = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/; |
---|
| 154 | re2 = /^(.+?)(s|t)(ion)$/; |
---|
| 155 | if (re.test(w)) { |
---|
| 156 | var fp = re.exec(w); |
---|
| 157 | stem = fp[1]; |
---|
| 158 | re = new RegExp(mgr1); |
---|
| 159 | if (re.test(stem)) |
---|
| 160 | w = stem; |
---|
| 161 | } |
---|
| 162 | else if (re2.test(w)) { |
---|
| 163 | var fp = re2.exec(w); |
---|
| 164 | stem = fp[1] + fp[2]; |
---|
| 165 | re2 = new RegExp(mgr1); |
---|
| 166 | if (re2.test(stem)) |
---|
| 167 | w = stem; |
---|
| 168 | } |
---|
| 169 | |
---|
| 170 | // Step 5 |
---|
| 171 | re = /^(.+?)e$/; |
---|
| 172 | if (re.test(w)) { |
---|
| 173 | var fp = re.exec(w); |
---|
| 174 | stem = fp[1]; |
---|
| 175 | re = new RegExp(mgr1); |
---|
| 176 | re2 = new RegExp(meq1); |
---|
| 177 | re3 = new RegExp("^" + C + v + "[^aeiouwxy]$"); |
---|
| 178 | if (re.test(stem) || (re2.test(stem) && !(re3.test(stem)))) |
---|
| 179 | w = stem; |
---|
| 180 | } |
---|
| 181 | re = /ll$/; |
---|
| 182 | re2 = new RegExp(mgr1); |
---|
| 183 | if (re.test(w) && re2.test(w)) { |
---|
| 184 | re = /.$/; |
---|
| 185 | w = w.replace(re,""); |
---|
| 186 | } |
---|
| 187 | |
---|
| 188 | // and turn initial Y back to y |
---|
| 189 | if (firstch == "y") |
---|
| 190 | w = firstch.toLowerCase() + w.substr(1); |
---|
| 191 | return w; |
---|
| 192 | } |
---|
| 193 | } |
---|
| 194 | |
---|
| 195 | |
---|
| 196 | |
---|
| 197 | /** |
---|
| 198 | * Simple result scoring code. |
---|
| 199 | */ |
---|
| 200 | var Scorer = { |
---|
| 201 | // Implement the following function to further tweak the score for each result |
---|
| 202 | // The function takes a result array [filename, title, anchor, descr, score] |
---|
| 203 | // and returns the new score. |
---|
| 204 | /* |
---|
| 205 | score: function(result) { |
---|
| 206 | return result[4]; |
---|
| 207 | }, |
---|
| 208 | */ |
---|
| 209 | |
---|
| 210 | // query matches the full name of an object |
---|
| 211 | objNameMatch: 11, |
---|
| 212 | // or matches in the last dotted part of the object name |
---|
| 213 | objPartialMatch: 6, |
---|
| 214 | // Additive scores depending on the priority of the object |
---|
| 215 | objPrio: {0: 15, // used to be importantResults |
---|
| 216 | 1: 5, // used to be objectResults |
---|
| 217 | 2: -5}, // used to be unimportantResults |
---|
| 218 | // Used when the priority is not in the mapping. |
---|
| 219 | objPrioDefault: 0, |
---|
| 220 | |
---|
| 221 | // query found in title |
---|
| 222 | title: 15, |
---|
| 223 | // query found in terms |
---|
| 224 | term: 5 |
---|
| 225 | }; |
---|
| 226 | |
---|
| 227 | |
---|
| 228 | /** |
---|
| 229 | * Search Module |
---|
| 230 | */ |
---|
| 231 | var Search = { |
---|
| 232 | |
---|
| 233 | _index : null, |
---|
| 234 | _queued_query : null, |
---|
| 235 | _pulse_status : -1, |
---|
| 236 | |
---|
| 237 | init : function() { |
---|
| 238 | var params = $.getQueryParameters(); |
---|
| 239 | if (params.q) { |
---|
| 240 | var query = params.q[0]; |
---|
| 241 | $('input[name="q"]')[0].value = query; |
---|
| 242 | this.performSearch(query); |
---|
| 243 | } |
---|
| 244 | }, |
---|
| 245 | |
---|
| 246 | loadIndex : function(url) { |
---|
| 247 | $.ajax({type: "GET", url: url, data: null, |
---|
| 248 | dataType: "script", cache: true, |
---|
| 249 | complete: function(jqxhr, textstatus) { |
---|
| 250 | if (textstatus != "success") { |
---|
| 251 | document.getElementById("searchindexloader").src = url; |
---|
| 252 | } |
---|
| 253 | }}); |
---|
| 254 | }, |
---|
| 255 | |
---|
| 256 | setIndex : function(index) { |
---|
| 257 | var q; |
---|
| 258 | this._index = index; |
---|
| 259 | if ((q = this._queued_query) !== null) { |
---|
| 260 | this._queued_query = null; |
---|
| 261 | Search.query(q); |
---|
| 262 | } |
---|
| 263 | }, |
---|
| 264 | |
---|
| 265 | hasIndex : function() { |
---|
| 266 | return this._index !== null; |
---|
| 267 | }, |
---|
| 268 | |
---|
| 269 | deferQuery : function(query) { |
---|
| 270 | this._queued_query = query; |
---|
| 271 | }, |
---|
| 272 | |
---|
| 273 | stopPulse : function() { |
---|
| 274 | this._pulse_status = 0; |
---|
| 275 | }, |
---|
| 276 | |
---|
| 277 | startPulse : function() { |
---|
| 278 | if (this._pulse_status >= 0) |
---|
| 279 | return; |
---|
| 280 | function pulse() { |
---|
| 281 | var i; |
---|
| 282 | Search._pulse_status = (Search._pulse_status + 1) % 4; |
---|
| 283 | var dotString = ''; |
---|
| 284 | for (i = 0; i < Search._pulse_status; i++) |
---|
| 285 | dotString += '.'; |
---|
| 286 | Search.dots.text(dotString); |
---|
| 287 | if (Search._pulse_status > -1) |
---|
| 288 | window.setTimeout(pulse, 500); |
---|
| 289 | } |
---|
| 290 | pulse(); |
---|
| 291 | }, |
---|
| 292 | |
---|
| 293 | /** |
---|
| 294 | * perform a search for something (or wait until index is loaded) |
---|
| 295 | */ |
---|
| 296 | performSearch : function(query) { |
---|
| 297 | // create the required interface elements |
---|
| 298 | this.out = $('#search-results'); |
---|
| 299 | this.title = $('<h2>' + _('Searching') + '</h2>').appendTo(this.out); |
---|
| 300 | this.dots = $('<span></span>').appendTo(this.title); |
---|
| 301 | this.status = $('<p style="display: none"></p>').appendTo(this.out); |
---|
| 302 | this.output = $('<ul class="search"/>').appendTo(this.out); |
---|
| 303 | |
---|
| 304 | $('#search-progress').text(_('Preparing search...')); |
---|
| 305 | this.startPulse(); |
---|
| 306 | |
---|
| 307 | // index already loaded, the browser was quick! |
---|
| 308 | if (this.hasIndex()) |
---|
| 309 | this.query(query); |
---|
| 310 | else |
---|
| 311 | this.deferQuery(query); |
---|
| 312 | }, |
---|
| 313 | |
---|
| 314 | /** |
---|
| 315 | * execute search (requires search index to be loaded) |
---|
| 316 | */ |
---|
| 317 | query : function(query) { |
---|
| 318 | var i; |
---|
| 319 | var stopwords = ["a","and","are","as","at","be","but","by","for","if","in","into","is","it","near","no","not","of","on","or","such","that","the","their","then","there","these","they","this","to","was","will","with"]; |
---|
| 320 | |
---|
| 321 | // stem the searchterms and add them to the correct list |
---|
| 322 | var stemmer = new Stemmer(); |
---|
| 323 | var searchterms = []; |
---|
| 324 | var excluded = []; |
---|
| 325 | var hlterms = []; |
---|
| 326 | var tmp = query.split(/\s+/); |
---|
| 327 | var objectterms = []; |
---|
| 328 | for (i = 0; i < tmp.length; i++) { |
---|
| 329 | if (tmp[i] !== "") { |
---|
| 330 | objectterms.push(tmp[i].toLowerCase()); |
---|
| 331 | } |
---|
| 332 | |
---|
| 333 | if ($u.indexOf(stopwords, tmp[i].toLowerCase()) != -1 || tmp[i].match(/^\d+$/) || |
---|
| 334 | tmp[i] === "") { |
---|
| 335 | // skip this "word" |
---|
| 336 | continue; |
---|
| 337 | } |
---|
| 338 | // stem the word |
---|
| 339 | var word = stemmer.stemWord(tmp[i].toLowerCase()); |
---|
| 340 | var toAppend; |
---|
| 341 | // select the correct list |
---|
| 342 | if (word[0] == '-') { |
---|
| 343 | toAppend = excluded; |
---|
| 344 | word = word.substr(1); |
---|
| 345 | } |
---|
| 346 | else { |
---|
| 347 | toAppend = searchterms; |
---|
| 348 | hlterms.push(tmp[i].toLowerCase()); |
---|
| 349 | } |
---|
| 350 | // only add if not already in the list |
---|
| 351 | if (!$u.contains(toAppend, word)) |
---|
| 352 | toAppend.push(word); |
---|
| 353 | } |
---|
| 354 | var highlightstring = '?highlight=' + $.urlencode(hlterms.join(" ")); |
---|
| 355 | |
---|
| 356 | // console.debug('SEARCH: searching for:'); |
---|
| 357 | // console.info('required: ', searchterms); |
---|
| 358 | // console.info('excluded: ', excluded); |
---|
| 359 | |
---|
| 360 | // prepare search |
---|
| 361 | var terms = this._index.terms; |
---|
| 362 | var titleterms = this._index.titleterms; |
---|
| 363 | |
---|
| 364 | // array of [filename, title, anchor, descr, score] |
---|
| 365 | var results = []; |
---|
| 366 | $('#search-progress').empty(); |
---|
| 367 | |
---|
| 368 | // lookup as object |
---|
| 369 | for (i = 0; i < objectterms.length; i++) { |
---|
| 370 | var others = [].concat(objectterms.slice(0, i), |
---|
| 371 | objectterms.slice(i+1, objectterms.length)); |
---|
| 372 | results = results.concat(this.performObjectSearch(objectterms[i], others)); |
---|
| 373 | } |
---|
| 374 | |
---|
| 375 | // lookup as search terms in fulltext |
---|
| 376 | results = results.concat(this.performTermsSearch(searchterms, excluded, terms, Scorer.term)) |
---|
| 377 | .concat(this.performTermsSearch(searchterms, excluded, titleterms, Scorer.title)); |
---|
| 378 | |
---|
| 379 | // let the scorer override scores with a custom scoring function |
---|
| 380 | if (Scorer.score) { |
---|
| 381 | for (i = 0; i < results.length; i++) |
---|
| 382 | results[i][4] = Scorer.score(results[i]); |
---|
| 383 | } |
---|
| 384 | |
---|
| 385 | // now sort the results by score (in opposite order of appearance, since the |
---|
| 386 | // display function below uses pop() to retrieve items) and then |
---|
| 387 | // alphabetically |
---|
| 388 | results.sort(function(a, b) { |
---|
| 389 | var left = a[4]; |
---|
| 390 | var right = b[4]; |
---|
| 391 | if (left > right) { |
---|
| 392 | return 1; |
---|
| 393 | } else if (left < right) { |
---|
| 394 | return -1; |
---|
| 395 | } else { |
---|
| 396 | // same score: sort alphabetically |
---|
| 397 | left = a[1].toLowerCase(); |
---|
| 398 | right = b[1].toLowerCase(); |
---|
| 399 | return (left > right) ? -1 : ((left < right) ? 1 : 0); |
---|
| 400 | } |
---|
| 401 | }); |
---|
| 402 | |
---|
| 403 | // for debugging |
---|
| 404 | //Search.lastresults = results.slice(); // a copy |
---|
| 405 | //console.info('search results:', Search.lastresults); |
---|
| 406 | |
---|
| 407 | // print the results |
---|
| 408 | var resultCount = results.length; |
---|
| 409 | function displayNextItem() { |
---|
| 410 | // results left, load the summary and display it |
---|
| 411 | if (results.length) { |
---|
| 412 | var item = results.pop(); |
---|
| 413 | var listItem = $('<li style="display:none"></li>'); |
---|
| 414 | if (DOCUMENTATION_OPTIONS.FILE_SUFFIX === '') { |
---|
| 415 | // dirhtml builder |
---|
| 416 | var dirname = item[0] + '/'; |
---|
| 417 | if (dirname.match(/\/index\/$/)) { |
---|
| 418 | dirname = dirname.substring(0, dirname.length-6); |
---|
| 419 | } else if (dirname == 'index/') { |
---|
| 420 | dirname = ''; |
---|
| 421 | } |
---|
| 422 | listItem.append($('<a/>').attr('href', |
---|
| 423 | DOCUMENTATION_OPTIONS.URL_ROOT + dirname + |
---|
| 424 | highlightstring + item[2]).html(item[1])); |
---|
| 425 | } else { |
---|
| 426 | // normal html builders |
---|
| 427 | listItem.append($('<a/>').attr('href', |
---|
| 428 | item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX + |
---|
| 429 | highlightstring + item[2]).html(item[1])); |
---|
| 430 | } |
---|
| 431 | if (item[3]) { |
---|
| 432 | listItem.append($('<span> (' + item[3] + ')</span>')); |
---|
| 433 | Search.output.append(listItem); |
---|
| 434 | listItem.slideDown(5, function() { |
---|
| 435 | displayNextItem(); |
---|
| 436 | }); |
---|
| 437 | } else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) { |
---|
| 438 | $.ajax({url: DOCUMENTATION_OPTIONS.URL_ROOT + '_sources/' + item[0] + '.txt', |
---|
| 439 | dataType: "text", |
---|
| 440 | complete: function(jqxhr, textstatus) { |
---|
| 441 | var data = jqxhr.responseText; |
---|
| 442 | if (data !== '' && data !== undefined) { |
---|
| 443 | listItem.append(Search.makeSearchSummary(data, searchterms, hlterms)); |
---|
| 444 | } |
---|
| 445 | Search.output.append(listItem); |
---|
| 446 | listItem.slideDown(5, function() { |
---|
| 447 | displayNextItem(); |
---|
| 448 | }); |
---|
| 449 | }}); |
---|
| 450 | } else { |
---|
| 451 | // no source available, just display title |
---|
| 452 | Search.output.append(listItem); |
---|
| 453 | listItem.slideDown(5, function() { |
---|
| 454 | displayNextItem(); |
---|
| 455 | }); |
---|
| 456 | } |
---|
| 457 | } |
---|
| 458 | // search finished, update title and status message |
---|
| 459 | else { |
---|
| 460 | Search.stopPulse(); |
---|
| 461 | Search.title.text(_('Search Results')); |
---|
| 462 | if (!resultCount) |
---|
| 463 | Search.status.text(_('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.')); |
---|
| 464 | else |
---|
| 465 | Search.status.text(_('Search finished, found %s page(s) matching the search query.').replace('%s', resultCount)); |
---|
| 466 | Search.status.fadeIn(500); |
---|
| 467 | } |
---|
| 468 | } |
---|
| 469 | displayNextItem(); |
---|
| 470 | }, |
---|
| 471 | |
---|
| 472 | /** |
---|
| 473 | * search for object names |
---|
| 474 | */ |
---|
| 475 | performObjectSearch : function(object, otherterms) { |
---|
| 476 | var filenames = this._index.filenames; |
---|
| 477 | var objects = this._index.objects; |
---|
| 478 | var objnames = this._index.objnames; |
---|
| 479 | var titles = this._index.titles; |
---|
| 480 | |
---|
| 481 | var i; |
---|
| 482 | var results = []; |
---|
| 483 | |
---|
| 484 | for (var prefix in objects) { |
---|
| 485 | for (var name in objects[prefix]) { |
---|
| 486 | var fullname = (prefix ? prefix + '.' : '') + name; |
---|
| 487 | if (fullname.toLowerCase().indexOf(object) > -1) { |
---|
| 488 | var score = 0; |
---|
| 489 | var parts = fullname.split('.'); |
---|
| 490 | // check for different match types: exact matches of full name or |
---|
| 491 | // "last name" (i.e. last dotted part) |
---|
| 492 | if (fullname == object || parts[parts.length - 1] == object) { |
---|
| 493 | score += Scorer.objNameMatch; |
---|
| 494 | // matches in last name |
---|
| 495 | } else if (parts[parts.length - 1].indexOf(object) > -1) { |
---|
| 496 | score += Scorer.objPartialMatch; |
---|
| 497 | } |
---|
| 498 | var match = objects[prefix][name]; |
---|
| 499 | var objname = objnames[match[1]][2]; |
---|
| 500 | var title = titles[match[0]]; |
---|
| 501 | // If more than one term searched for, we require other words to be |
---|
| 502 | // found in the name/title/description |
---|
| 503 | if (otherterms.length > 0) { |
---|
| 504 | var haystack = (prefix + ' ' + name + ' ' + |
---|
| 505 | objname + ' ' + title).toLowerCase(); |
---|
| 506 | var allfound = true; |
---|
| 507 | for (i = 0; i < otherterms.length; i++) { |
---|
| 508 | if (haystack.indexOf(otherterms[i]) == -1) { |
---|
| 509 | allfound = false; |
---|
| 510 | break; |
---|
| 511 | } |
---|
| 512 | } |
---|
| 513 | if (!allfound) { |
---|
| 514 | continue; |
---|
| 515 | } |
---|
| 516 | } |
---|
| 517 | var descr = objname + _(', in ') + title; |
---|
| 518 | |
---|
| 519 | var anchor = match[3]; |
---|
| 520 | if (anchor === '') |
---|
| 521 | anchor = fullname; |
---|
| 522 | else if (anchor == '-') |
---|
| 523 | anchor = objnames[match[1]][1] + '-' + fullname; |
---|
| 524 | // add custom score for some objects according to scorer |
---|
| 525 | if (Scorer.objPrio.hasOwnProperty(match[2])) { |
---|
| 526 | score += Scorer.objPrio[match[2]]; |
---|
| 527 | } else { |
---|
| 528 | score += Scorer.objPrioDefault; |
---|
| 529 | } |
---|
| 530 | results.push([filenames[match[0]], fullname, '#'+anchor, descr, score]); |
---|
| 531 | } |
---|
| 532 | } |
---|
| 533 | } |
---|
| 534 | |
---|
| 535 | return results; |
---|
| 536 | }, |
---|
| 537 | |
---|
| 538 | /** |
---|
| 539 | * search for full-text terms in the index |
---|
| 540 | */ |
---|
| 541 | performTermsSearch : function(searchterms, excluded, terms, score) { |
---|
| 542 | var filenames = this._index.filenames; |
---|
| 543 | var titles = this._index.titles; |
---|
| 544 | |
---|
| 545 | var i, j, file, files; |
---|
| 546 | var fileMap = {}; |
---|
| 547 | var results = []; |
---|
| 548 | |
---|
| 549 | // perform the search on the required terms |
---|
| 550 | for (i = 0; i < searchterms.length; i++) { |
---|
| 551 | var word = searchterms[i]; |
---|
| 552 | // no match but word was a required one |
---|
| 553 | if ((files = terms[word]) === undefined) |
---|
| 554 | break; |
---|
| 555 | if (files.length === undefined) { |
---|
| 556 | files = [files]; |
---|
| 557 | } |
---|
| 558 | // create the mapping |
---|
| 559 | for (j = 0; j < files.length; j++) { |
---|
| 560 | file = files[j]; |
---|
| 561 | if (file in fileMap) |
---|
| 562 | fileMap[file].push(word); |
---|
| 563 | else |
---|
| 564 | fileMap[file] = [word]; |
---|
| 565 | } |
---|
| 566 | } |
---|
| 567 | |
---|
| 568 | // now check if the files don't contain excluded terms |
---|
| 569 | for (file in fileMap) { |
---|
| 570 | var valid = true; |
---|
| 571 | |
---|
| 572 | // check if all requirements are matched |
---|
| 573 | if (fileMap[file].length != searchterms.length) |
---|
| 574 | continue; |
---|
| 575 | |
---|
| 576 | // ensure that none of the excluded terms is in the search result |
---|
| 577 | for (i = 0; i < excluded.length; i++) { |
---|
| 578 | if (terms[excluded[i]] == file || |
---|
| 579 | $u.contains(terms[excluded[i]] || [], file)) { |
---|
| 580 | valid = false; |
---|
| 581 | break; |
---|
| 582 | } |
---|
| 583 | } |
---|
| 584 | |
---|
| 585 | // if we have still a valid result we can add it to the result list |
---|
| 586 | if (valid) { |
---|
| 587 | results.push([filenames[file], titles[file], '', null, score]); |
---|
| 588 | } |
---|
| 589 | } |
---|
| 590 | return results; |
---|
| 591 | }, |
---|
| 592 | |
---|
| 593 | /** |
---|
| 594 | * helper function to return a node containing the |
---|
| 595 | * search summary for a given text. keywords is a list |
---|
| 596 | * of stemmed words, hlwords is the list of normal, unstemmed |
---|
| 597 | * words. the first one is used to find the occurance, the |
---|
| 598 | * latter for highlighting it. |
---|
| 599 | */ |
---|
| 600 | makeSearchSummary : function(text, keywords, hlwords) { |
---|
| 601 | var textLower = text.toLowerCase(); |
---|
| 602 | var start = 0; |
---|
| 603 | $.each(keywords, function() { |
---|
| 604 | var i = textLower.indexOf(this.toLowerCase()); |
---|
| 605 | if (i > -1) |
---|
| 606 | start = i; |
---|
| 607 | }); |
---|
| 608 | start = Math.max(start - 120, 0); |
---|
| 609 | var excerpt = ((start > 0) ? '...' : '') + |
---|
| 610 | $.trim(text.substr(start, 240)) + |
---|
| 611 | ((start + 240 - text.length) ? '...' : ''); |
---|
| 612 | var rv = $('<div class="context"></div>').text(excerpt); |
---|
| 613 | $.each(hlwords, function() { |
---|
| 614 | rv = rv.highlightText(this, 'highlighted'); |
---|
| 615 | }); |
---|
| 616 | return rv; |
---|
| 617 | } |
---|
| 618 | }; |
---|
| 619 | |
---|
| 620 | $(document).ready(function() { |
---|
| 621 | Search.init(); |
---|
| 622 | }); |
---|