| /* |
| * searchtools.js_t |
| * ~~~~~~~~~~~~~~~~ |
| * |
| * Sphinx JavaScript utilities for the full-text search. |
| * |
| * :copyright: Copyright 2007-2017 by the Sphinx team, see AUTHORS. |
| * :license: BSD, see LICENSE for details. |
| * |
| */ |
| |
| |
| /* Non-minified version JS is _stemmer.js if file is provided */ |
| /** |
| * Porter Stemmer |
| */ |
| var Stemmer = function() { |
| |
| var step2list = { |
| ational: 'ate', |
| tional: 'tion', |
| enci: 'ence', |
| anci: 'ance', |
| izer: 'ize', |
| bli: 'ble', |
| alli: 'al', |
| entli: 'ent', |
| eli: 'e', |
| ousli: 'ous', |
| ization: 'ize', |
| ation: 'ate', |
| ator: 'ate', |
| alism: 'al', |
| iveness: 'ive', |
| fulness: 'ful', |
| ousness: 'ous', |
| aliti: 'al', |
| iviti: 'ive', |
| biliti: 'ble', |
| logi: 'log' |
| }; |
| |
| var step3list = { |
| icate: 'ic', |
| ative: '', |
| alize: 'al', |
| iciti: 'ic', |
| ical: 'ic', |
| ful: '', |
| ness: '' |
| }; |
| |
| var c = "[^aeiou]"; // consonant |
| var v = "[aeiouy]"; // vowel |
| var C = c + "[^aeiouy]*"; // consonant sequence |
| var V = v + "[aeiou]*"; // vowel sequence |
| |
| var mgr0 = "^(" + C + ")?" + V + C; // [C]VC... is m>0 |
| var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$"; // [C]VC[V] is m=1 |
| var mgr1 = "^(" + C + ")?" + V + C + V + C; // [C]VCVC... is m>1 |
| var s_v = "^(" + C + ")?" + v; // vowel in stem |
| |
| this.stemWord = function (w) { |
| var stem; |
| var suffix; |
| var firstch; |
| var origword = w; |
| |
| if (w.length < 3) |
| return w; |
| |
| var re; |
| var re2; |
| var re3; |
| var re4; |
| |
| firstch = w.substr(0,1); |
| if (firstch == "y") |
| w = firstch.toUpperCase() + w.substr(1); |
| |
| // Step 1a |
| re = /^(.+?)(ss|i)es$/; |
| re2 = /^(.+?)([^s])s$/; |
| |
| if (re.test(w)) |
| w = w.replace(re,"$1$2"); |
| else if (re2.test(w)) |
| w = w.replace(re2,"$1$2"); |
| |
| // Step 1b |
| re = /^(.+?)eed$/; |
| re2 = /^(.+?)(ed|ing)$/; |
| if (re.test(w)) { |
| var fp = re.exec(w); |
| re = new RegExp(mgr0); |
| if (re.test(fp[1])) { |
| re = /.$/; |
| w = w.replace(re,""); |
| } |
| } |
| else if (re2.test(w)) { |
| var fp = re2.exec(w); |
| stem = fp[1]; |
| re2 = new RegExp(s_v); |
| if (re2.test(stem)) { |
| w = stem; |
| re2 = /(at|bl|iz)$/; |
| re3 = new RegExp("([^aeiouylsz])\\1$"); |
| re4 = new RegExp("^" + C + v + "[^aeiouwxy]$"); |
| if (re2.test(w)) |
| w = w + "e"; |
| else if (re3.test(w)) { |
| re = /.$/; |
| w = w.replace(re,""); |
| } |
| else if (re4.test(w)) |
| w = w + "e"; |
| } |
| } |
| |
| // Step 1c |
| re = /^(.+?)y$/; |
| if (re.test(w)) { |
| var fp = re.exec(w); |
| stem = fp[1]; |
| re = new RegExp(s_v); |
| if (re.test(stem)) |
| w = stem + "i"; |
| } |
| |
| // Step 2 |
| re = /^(.+?)(ational|tional|enci|anci|izer|bli|alli|entli|eli|ousli|ization|ation|ator|alism|iveness|fulness|ousness|aliti|iviti|biliti|logi)$/; |
| if (re.test(w)) { |
| var fp = re.exec(w); |
| stem = fp[1]; |
| suffix = fp[2]; |
| re = new RegExp(mgr0); |
| if (re.test(stem)) |
| w = stem + step2list[suffix]; |
| } |
| |
| // Step 3 |
| re = /^(.+?)(icate|ative|alize|iciti|ical|ful|ness)$/; |
| if (re.test(w)) { |
| var fp = re.exec(w); |
| stem = fp[1]; |
| suffix = fp[2]; |
| re = new RegExp(mgr0); |
| if (re.test(stem)) |
| w = stem + step3list[suffix]; |
| } |
| |
| // Step 4 |
| re = /^(.+?)(al|ance|ence|er|ic|able|ible|ant|ement|ment|ent|ou|ism|ate|iti|ous|ive|ize)$/; |
| re2 = /^(.+?)(s|t)(ion)$/; |
| if (re.test(w)) { |
| var fp = re.exec(w); |
| stem = fp[1]; |
| re = new RegExp(mgr1); |
| if (re.test(stem)) |
| w = stem; |
| } |
| else if (re2.test(w)) { |
| var fp = re2.exec(w); |
| stem = fp[1] + fp[2]; |
| re2 = new RegExp(mgr1); |
| if (re2.test(stem)) |
| w = stem; |
| } |
| |
| // Step 5 |
| re = /^(.+?)e$/; |
| if (re.test(w)) { |
| var fp = re.exec(w); |
| stem = fp[1]; |
| re = new RegExp(mgr1); |
| re2 = new RegExp(meq1); |
| re3 = new RegExp("^" + C + v + "[^aeiouwxy]$"); |
| if (re.test(stem) || (re2.test(stem) && !(re3.test(stem)))) |
| w = stem; |
| } |
| re = /ll$/; |
| re2 = new RegExp(mgr1); |
| if (re.test(w) && re2.test(w)) { |
| re = /.$/; |
| w = w.replace(re,""); |
| } |
| |
| // and turn initial Y back to y |
| if (firstch == "y") |
| w = firstch.toLowerCase() + w.substr(1); |
| return w; |
| } |
| } |
| |
| |
| |
| /** |
| * Simple result scoring code. |
| */ |
| var Scorer = { |
| // Implement the following function to further tweak the score for each result |
| // The function takes a result array [filename, title, anchor, descr, score] |
| // and returns the new score. |
| /* |
| score: function(result) { |
| return result[4]; |
| }, |
| */ |
| |
| // query matches the full name of an object |
| objNameMatch: 11, |
| // or matches in the last dotted part of the object name |
| objPartialMatch: 6, |
| // Additive scores depending on the priority of the object |
| objPrio: {0: 15, // used to be importantResults |
| 1: 5, // used to be objectResults |
| 2: -5}, // used to be unimportantResults |
| // Used when the priority is not in the mapping. |
| objPrioDefault: 0, |
| |
| // query found in title |
| title: 15, |
| // query found in terms |
| term: 5 |
| }; |
| |
| |
| |
| |
| |
| var splitChars = (function() { |
| var result = {}; |
| var singles = [96, 180, 187, 191, 215, 247, 749, 885, 903, 907, 909, 930, 1014, 1648, |
| 1748, 1809, 2416, 2473, 2481, 2526, 2601, 2609, 2612, 2615, 2653, 2702, |
| 2706, 2729, 2737, 2740, 2857, 2865, 2868, 2910, 2928, 2948, 2961, 2971, |
| 2973, 3085, 3089, 3113, 3124, 3213, 3217, 3241, 3252, 3295, 3341, 3345, |
| 3369, 3506, 3516, 3633, 3715, 3721, 3736, 3744, 3748, 3750, 3756, 3761, |
| 3781, 3912, 4239, 4347, 4681, 4695, 4697, 4745, 4785, 4799, 4801, 4823, |
| 4881, 5760, 5901, 5997, 6313, 7405, 8024, 8026, 8028, 8030, 8117, 8125, |
| 8133, 8181, 8468, 8485, 8487, 8489, 8494, 8527, 11311, 11359, 11687, 11695, |
| 11703, 11711, 11719, 11727, 11735, 12448, 12539, 43010, 43014, 43019, 43587, |
| 43696, 43713, 64286, 64297, 64311, 64317, 64319, 64322, 64325, 65141]; |
| var i, j, start, end; |
| for (i = 0; i < singles.length; i++) { |
| result[singles[i]] = true; |
| } |
| var ranges = [[0, 47], [58, 64], [91, 94], [123, 169], [171, 177], [182, 184], [706, 709], |
| [722, 735], [741, 747], [751, 879], [888, 889], [894, 901], [1154, 1161], |
| [1318, 1328], [1367, 1368], [1370, 1376], [1416, 1487], [1515, 1519], [1523, 1568], |
| [1611, 1631], [1642, 1645], [1750, 1764], [1767, 1773], [1789, 1790], [1792, 1807], |
| [1840, 1868], [1958, 1968], [1970, 1983], [2027, 2035], [2038, 2041], [2043, 2047], |
| [2070, 2073], [2075, 2083], [2085, 2087], [2089, 2307], [2362, 2364], [2366, 2383], |
| [2385, 2391], [2402, 2405], [2419, 2424], [2432, 2436], [2445, 2446], [2449, 2450], |
| [2483, 2485], [2490, 2492], [2494, 2509], [2511, 2523], [2530, 2533], [2546, 2547], |
| [2554, 2564], [2571, 2574], [2577, 2578], [2618, 2648], [2655, 2661], [2672, 2673], |
| [2677, 2692], [2746, 2748], [2750, 2767], [2769, 2783], [2786, 2789], [2800, 2820], |
| [2829, 2830], [2833, 2834], [2874, 2876], [2878, 2907], [2914, 2917], [2930, 2946], |
| [2955, 2957], [2966, 2968], [2976, 2978], [2981, 2983], [2987, 2989], [3002, 3023], |
| [3025, 3045], [3059, 3076], [3130, 3132], [3134, 3159], [3162, 3167], [3170, 3173], |
| [3184, 3191], [3199, 3204], [3258, 3260], [3262, 3293], [3298, 3301], [3312, 3332], |
| [3386, 3388], [3390, 3423], [3426, 3429], [3446, 3449], [3456, 3460], [3479, 3481], |
| [3518, 3519], [3527, 3584], [3636, 3647], [3655, 3663], [3674, 3712], [3717, 3718], |
| [3723, 3724], [3726, 3731], [3752, 3753], [3764, 3772], [3774, 3775], [3783, 3791], |
| [3802, 3803], [3806, 3839], [3841, 3871], [3892, 3903], [3949, 3975], [3980, 4095], |
| [4139, 4158], [4170, 4175], [4182, 4185], [4190, 4192], [4194, 4196], [4199, 4205], |
| [4209, 4212], [4226, 4237], [4250, 4255], [4294, 4303], [4349, 4351], [4686, 4687], |
| [4702, 4703], [4750, 4751], [4790, 4791], [4806, 4807], [4886, 4887], [4955, 4968], |
| [4989, 4991], [5008, 5023], [5109, 5120], [5741, 5742], [5787, 5791], [5867, 5869], |
| [5873, 5887], [5906, 5919], [5938, 5951], [5970, 5983], [6001, 6015], [6068, 6102], |
| [6104, 6107], [6109, 6111], [6122, 6127], [6138, 6159], [6170, 6175], [6264, 6271], |
| [6315, 6319], [6390, 6399], [6429, 6469], [6510, 6511], [6517, 6527], [6572, 6592], |
| [6600, 6607], [6619, 6655], [6679, 6687], [6741, 6783], [6794, 6799], [6810, 6822], |
| [6824, 6916], [6964, 6980], [6988, 6991], [7002, 7042], [7073, 7085], [7098, 7167], |
| [7204, 7231], [7242, 7244], [7294, 7400], [7410, 7423], [7616, 7679], [7958, 7959], |
| [7966, 7967], [8006, 8007], [8014, 8015], [8062, 8063], [8127, 8129], [8141, 8143], |
| [8148, 8149], [8156, 8159], [8173, 8177], [8189, 8303], [8306, 8307], [8314, 8318], |
| [8330, 8335], [8341, 8449], [8451, 8454], [8456, 8457], [8470, 8472], [8478, 8483], |
| [8506, 8507], [8512, 8516], [8522, 8525], [8586, 9311], [9372, 9449], [9472, 10101], |
| [10132, 11263], [11493, 11498], [11503, 11516], [11518, 11519], [11558, 11567], |
| [11622, 11630], [11632, 11647], [11671, 11679], [11743, 11822], [11824, 12292], |
| [12296, 12320], [12330, 12336], [12342, 12343], [12349, 12352], [12439, 12444], |
| [12544, 12548], [12590, 12592], [12687, 12689], [12694, 12703], [12728, 12783], |
| [12800, 12831], [12842, 12880], [12896, 12927], [12938, 12976], [12992, 13311], |
| [19894, 19967], [40908, 40959], [42125, 42191], [42238, 42239], [42509, 42511], |
| [42540, 42559], [42592, 42593], [42607, 42622], [42648, 42655], [42736, 42774], |
| [42784, 42785], [42889, 42890], [42893, 43002], [43043, 43055], [43062, 43071], |
| [43124, 43137], [43188, 43215], [43226, 43249], [43256, 43258], [43260, 43263], |
| [43302, 43311], [43335, 43359], [43389, 43395], [43443, 43470], [43482, 43519], |
| [43561, 43583], [43596, 43599], [43610, 43615], [43639, 43641], [43643, 43647], |
| [43698, 43700], [43703, 43704], [43710, 43711], [43715, 43738], [43742, 43967], |
| [44003, 44015], [44026, 44031], [55204, 55215], [55239, 55242], [55292, 55295], |
| [57344, 63743], [64046, 64047], [64110, 64111], [64218, 64255], [64263, 64274], |
| [64280, 64284], [64434, 64466], [64830, 64847], [64912, 64913], [64968, 65007], |
| [65020, 65135], [65277, 65295], [65306, 65312], [65339, 65344], [65371, 65381], |
| [65471, 65473], [65480, 65481], [65488, 65489], [65496, 65497]]; |
| for (i = 0; i < ranges.length; i++) { |
| start = ranges[i][0]; |
| end = ranges[i][1]; |
| for (j = start; j <= end; j++) { |
| result[j] = true; |
| } |
| } |
| return result; |
| })(); |
| |
| function splitQuery(query) { |
| var result = []; |
| var start = -1; |
| for (var i = 0; i < query.length; i++) { |
| if (splitChars[query.charCodeAt(i)]) { |
| if (start !== -1) { |
| result.push(query.slice(start, i)); |
| start = -1; |
| } |
| } else if (start === -1) { |
| start = i; |
| } |
| } |
| if (start !== -1) { |
| result.push(query.slice(start)); |
| } |
| return result; |
| } |
| |
| |
| |
| |
| /** |
| * Search Module |
| */ |
| var Search = { |
| |
| _index : null, |
| _queued_query : null, |
| _pulse_status : -1, |
| |
| init : function() { |
| var params = $.getQueryParameters(); |
| if (params.q) { |
| var query = params.q[0]; |
| $('input[name="q"]')[0].value = query; |
| this.performSearch(query); |
| } |
| }, |
| |
| loadIndex : function(url) { |
| $.ajax({type: "GET", url: url, data: null, |
| dataType: "script", cache: true, |
| complete: function(jqxhr, textstatus) { |
| if (textstatus != "success") { |
| document.getElementById("searchindexloader").src = url; |
| } |
| }}); |
| }, |
| |
| setIndex : function(index) { |
| var q; |
| this._index = index; |
| if ((q = this._queued_query) !== null) { |
| this._queued_query = null; |
| Search.query(q); |
| } |
| }, |
| |
| hasIndex : function() { |
| return this._index !== null; |
| }, |
| |
| deferQuery : function(query) { |
| this._queued_query = query; |
| }, |
| |
| stopPulse : function() { |
| this._pulse_status = 0; |
| }, |
| |
| startPulse : function() { |
| if (this._pulse_status >= 0) |
| return; |
| function pulse() { |
| var i; |
| Search._pulse_status = (Search._pulse_status + 1) % 4; |
| var dotString = ''; |
| for (i = 0; i < Search._pulse_status; i++) |
| dotString += '.'; |
| Search.dots.text(dotString); |
| if (Search._pulse_status > -1) |
| window.setTimeout(pulse, 500); |
| } |
| pulse(); |
| }, |
| |
| /** |
| * perform a search for something (or wait until index is loaded) |
| */ |
| performSearch : function(query) { |
| // create the required interface elements |
| this.out = $('#search-results'); |
| this.title = $('<h2>' + _('Searching') + '</h2>').appendTo(this.out); |
| this.dots = $('<span></span>').appendTo(this.title); |
| this.status = $('<p style="display: none"></p>').appendTo(this.out); |
| this.output = $('<ul class="search"/>').appendTo(this.out); |
| |
| $('#search-progress').text(_('Preparing search...')); |
| this.startPulse(); |
| |
| // index already loaded, the browser was quick! |
| if (this.hasIndex()) |
| this.query(query); |
| else |
| this.deferQuery(query); |
| }, |
| |
| /** |
| * execute search (requires search index to be loaded) |
| */ |
| query : function(query) { |
| var i; |
| var stopwords = ["a","and","are","as","at","be","but","by","for","if","in","into","is","it","near","no","not","of","on","or","such","that","the","their","then","there","these","they","this","to","was","will","with"]; |
| |
| // stem the searchterms and add them to the correct list |
| var stemmer = new Stemmer(); |
| var searchterms = []; |
| var excluded = []; |
| var hlterms = []; |
| var tmp = splitQuery(query); |
| var objectterms = []; |
| for (i = 0; i < tmp.length; i++) { |
| if (tmp[i] !== "") { |
| objectterms.push(tmp[i].toLowerCase()); |
| } |
| |
| if ($u.indexOf(stopwords, tmp[i].toLowerCase()) != -1 || tmp[i].match(/^\d+$/) || |
| tmp[i] === "") { |
| // skip this "word" |
| continue; |
| } |
| // stem the word |
| var word = stemmer.stemWord(tmp[i].toLowerCase()); |
| // prevent stemmer from cutting word smaller than two chars |
| if(word.length < 3 && tmp[i].length >= 3) { |
| word = tmp[i]; |
| } |
| var toAppend; |
| // select the correct list |
| if (word[0] == '-') { |
| toAppend = excluded; |
| word = word.substr(1); |
| } |
| else { |
| toAppend = searchterms; |
| hlterms.push(tmp[i].toLowerCase()); |
| } |
| // only add if not already in the list |
| if (!$u.contains(toAppend, word)) |
| toAppend.push(word); |
| } |
| var highlightstring = '?highlight=' + $.urlencode(hlterms.join(" ")); |
| |
| // console.debug('SEARCH: searching for:'); |
| // console.info('required: ', searchterms); |
| // console.info('excluded: ', excluded); |
| |
| // prepare search |
| var terms = this._index.terms; |
| var titleterms = this._index.titleterms; |
| |
| // array of [filename, title, anchor, descr, score] |
| var results = []; |
| $('#search-progress').empty(); |
| |
| // lookup as object |
| for (i = 0; i < objectterms.length; i++) { |
| var others = [].concat(objectterms.slice(0, i), |
| objectterms.slice(i+1, objectterms.length)); |
| results = results.concat(this.performObjectSearch(objectterms[i], others)); |
| } |
| |
| // lookup as search terms in fulltext |
| results = results.concat(this.performTermsSearch(searchterms, excluded, terms, titleterms)); |
| |
| // let the scorer override scores with a custom scoring function |
| if (Scorer.score) { |
| for (i = 0; i < results.length; i++) |
| results[i][4] = Scorer.score(results[i]); |
| } |
| |
| // now sort the results by score (in opposite order of appearance, since the |
| // display function below uses pop() to retrieve items) and then |
| // alphabetically |
| results.sort(function(a, b) { |
| var left = a[4]; |
| var right = b[4]; |
| if (left > right) { |
| return 1; |
| } else if (left < right) { |
| return -1; |
| } else { |
| // same score: sort alphabetically |
| left = a[1].toLowerCase(); |
| right = b[1].toLowerCase(); |
| return (left > right) ? -1 : ((left < right) ? 1 : 0); |
| } |
| }); |
| |
| // for debugging |
| //Search.lastresults = results.slice(); // a copy |
| //console.info('search results:', Search.lastresults); |
| |
| // print the results |
| var resultCount = results.length; |
| function displayNextItem() { |
| // results left, load the summary and display it |
| if (results.length) { |
| var item = results.pop(); |
| var listItem = $('<li style="display:none"></li>'); |
| if (DOCUMENTATION_OPTIONS.FILE_SUFFIX === '') { |
| // dirhtml builder |
| var dirname = item[0] + '/'; |
| if (dirname.match(/\/index\/$/)) { |
| dirname = dirname.substring(0, dirname.length-6); |
| } else if (dirname == 'index/') { |
| dirname = ''; |
| } |
| listItem.append($('<a/>').attr('href', |
| DOCUMENTATION_OPTIONS.URL_ROOT + dirname + |
| highlightstring + item[2]).html(item[1])); |
| } else { |
| // normal html builders |
| listItem.append($('<a/>').attr('href', |
| item[0] + DOCUMENTATION_OPTIONS.FILE_SUFFIX + |
| highlightstring + item[2]).html(item[1])); |
| } |
| if (item[3]) { |
| listItem.append($('<span> (' + item[3] + ')</span>')); |
| Search.output.append(listItem); |
| listItem.slideDown(5, function() { |
| displayNextItem(); |
| }); |
| } else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) { |
| var suffix = DOCUMENTATION_OPTIONS.SOURCELINK_SUFFIX; |
| $.ajax({url: DOCUMENTATION_OPTIONS.URL_ROOT + '_sources/' + item[5] + (item[5].slice(-suffix.length) === suffix ? '' : suffix), |
| dataType: "text", |
| complete: function(jqxhr, textstatus) { |
| var data = jqxhr.responseText; |
| if (data !== '' && data !== undefined) { |
| listItem.append(Search.makeSearchSummary(data, searchterms, hlterms)); |
| } |
| Search.output.append(listItem); |
| listItem.slideDown(5, function() { |
| displayNextItem(); |
| }); |
| }}); |
| } else { |
| // no source available, just display title |
| Search.output.append(listItem); |
| listItem.slideDown(5, function() { |
| displayNextItem(); |
| }); |
| } |
| } |
| // search finished, update title and status message |
| else { |
| Search.stopPulse(); |
| Search.title.text(_('Search Results')); |
| if (!resultCount) |
| 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.')); |
| else |
| Search.status.text(_('Search finished, found %s page(s) matching the search query.').replace('%s', resultCount)); |
| Search.status.fadeIn(500); |
| } |
| } |
| displayNextItem(); |
| }, |
| |
| /** |
| * search for object names |
| */ |
| performObjectSearch : function(object, otherterms) { |
| var filenames = this._index.filenames; |
| var docnames = this._index.docnames; |
| var objects = this._index.objects; |
| var objnames = this._index.objnames; |
| var titles = this._index.titles; |
| |
| var i; |
| var results = []; |
| |
| for (var prefix in objects) { |
| for (var name in objects[prefix]) { |
| var fullname = (prefix ? prefix + '.' : '') + name; |
| if (fullname.toLowerCase().indexOf(object) > -1) { |
| var score = 0; |
| var parts = fullname.split('.'); |
| // check for different match types: exact matches of full name or |
| // "last name" (i.e. last dotted part) |
| if (fullname == object || parts[parts.length - 1] == object) { |
| score += Scorer.objNameMatch; |
| // matches in last name |
| } else if (parts[parts.length - 1].indexOf(object) > -1) { |
| score += Scorer.objPartialMatch; |
| } |
| var match = objects[prefix][name]; |
| var objname = objnames[match[1]][2]; |
| var title = titles[match[0]]; |
| // If more than one term searched for, we require other words to be |
| // found in the name/title/description |
| if (otherterms.length > 0) { |
| var haystack = (prefix + ' ' + name + ' ' + |
| objname + ' ' + title).toLowerCase(); |
| var allfound = true; |
| for (i = 0; i < otherterms.length; i++) { |
| if (haystack.indexOf(otherterms[i]) == -1) { |
| allfound = false; |
| break; |
| } |
| } |
| if (!allfound) { |
| continue; |
| } |
| } |
| var descr = objname + _(', in ') + title; |
| |
| var anchor = match[3]; |
| if (anchor === '') |
| anchor = fullname; |
| else if (anchor == '-') |
| anchor = objnames[match[1]][1] + '-' + fullname; |
| // add custom score for some objects according to scorer |
| if (Scorer.objPrio.hasOwnProperty(match[2])) { |
| score += Scorer.objPrio[match[2]]; |
| } else { |
| score += Scorer.objPrioDefault; |
| } |
| results.push([docnames[match[0]], fullname, '#'+anchor, descr, score, filenames[match[0]]]); |
| } |
| } |
| } |
| |
| return results; |
| }, |
| |
| /** |
| * search for full-text terms in the index |
| */ |
| performTermsSearch : function(searchterms, excluded, terms, titleterms) { |
| var docnames = this._index.docnames; |
| var filenames = this._index.filenames; |
| var titles = this._index.titles; |
| |
| var i, j, file; |
| var fileMap = {}; |
| var scoreMap = {}; |
| var results = []; |
| |
| // perform the search on the required terms |
| for (i = 0; i < searchterms.length; i++) { |
| var word = searchterms[i]; |
| var files = []; |
| var _o = [ |
| {files: terms[word], score: Scorer.term}, |
| {files: titleterms[word], score: Scorer.title} |
| ]; |
| |
| // no match but word was a required one |
| if ($u.every(_o, function(o){return o.files === undefined;})) { |
| break; |
| } |
| // found search word in contents |
| $u.each(_o, function(o) { |
| var _files = o.files; |
| if (_files === undefined) |
| return |
| |
| if (_files.length === undefined) |
| _files = [_files]; |
| files = files.concat(_files); |
| |
| // set score for the word in each file to Scorer.term |
| for (j = 0; j < _files.length; j++) { |
| file = _files[j]; |
| if (!(file in scoreMap)) |
| scoreMap[file] = {} |
| scoreMap[file][word] = o.score; |
| } |
| }); |
| |
| // create the mapping |
| for (j = 0; j < files.length; j++) { |
| file = files[j]; |
| if (file in fileMap) |
| fileMap[file].push(word); |
| else |
| fileMap[file] = [word]; |
| } |
| } |
| |
| // now check if the files don't contain excluded terms |
| for (file in fileMap) { |
| var valid = true; |
| |
| // check if all requirements are matched |
| if (fileMap[file].length != searchterms.length) |
| continue; |
| |
| // ensure that none of the excluded terms is in the search result |
| for (i = 0; i < excluded.length; i++) { |
| if (terms[excluded[i]] == file || |
| titleterms[excluded[i]] == file || |
| $u.contains(terms[excluded[i]] || [], file) || |
| $u.contains(titleterms[excluded[i]] || [], file)) { |
| valid = false; |
| break; |
| } |
| } |
| |
| // if we have still a valid result we can add it to the result list |
| if (valid) { |
| // select one (max) score for the file. |
| // for better ranking, we should calculate ranking by using words statistics like basic tf-idf... |
| var score = $u.max($u.map(fileMap[file], function(w){return scoreMap[file][w]})); |
| results.push([docnames[file], titles[file], '', null, score, filenames[file]]); |
| } |
| } |
| return results; |
| }, |
| |
| /** |
| * helper function to return a node containing the |
| * search summary for a given text. keywords is a list |
| * of stemmed words, hlwords is the list of normal, unstemmed |
| * words. the first one is used to find the occurrence, the |
| * latter for highlighting it. |
| */ |
| makeSearchSummary : function(text, keywords, hlwords) { |
| var textLower = text.toLowerCase(); |
| var start = 0; |
| $.each(keywords, function() { |
| var i = textLower.indexOf(this.toLowerCase()); |
| if (i > -1) |
| start = i; |
| }); |
| start = Math.max(start - 120, 0); |
| var excerpt = ((start > 0) ? '...' : '') + |
| $.trim(text.substr(start, 240)) + |
| ((start + 240 - text.length) ? '...' : ''); |
| var rv = $('<div class="context"></div>').text(excerpt); |
| $.each(hlwords, function() { |
| rv = rv.highlightText(this, 'highlighted'); |
| }); |
| return rv; |
| } |
| }; |
| |
| $(document).ready(function() { |
| Search.init(); |
| }); |