--- /dev/null
+/**
+ * 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 occurance, the
+ * latter for highlighting it.
+ */
+
+jQuery.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);
+ $.each(hlwords, function() {
+ rv = rv.highlightText(this, 'highlight');
+ });
+ return rv;
+}
+
+/**
+ * Porter Stemmer
+ */
+var PorterStemmer = function() {
+
+ var step2list = {
+ ational: 'ate',
+ tional: 'tion',
+ enci: 'ence',
+ anci: 'ance',
+ izer: 'ize',
+ bli: 'ble',
+ alli: 'al',
+ entli: 'ent',
+ eli: 'e',
+ ousli: 'ous',
+ ization: 'ize',
+ ation: 'ate',
+ ator: 'ate',
+ alism: 'al',
+ iveness: 'ive',
+ fulness: 'ful',
+ ousness: 'ous',
+ aliti: 'al',
+ iviti: 'ive',
+ biliti: 'ble',
+ logi: 'log'
+ };
+
+ var step3list = {
+ icate: 'ic',
+ ative: '',
+ alize: 'al',
+ iciti: 'ic',
+ ical: 'ic',
+ ful: '',
+ ness: ''
+ };
+
+ var c = "[^aeiou]"; // consonant
+ var v = "[aeiouy]"; // vowel
+ var C = c + "[^aeiouy]*"; // consonant sequence
+ var V = v + "[aeiou]*"; // vowel sequence
+
+ var mgr0 = "^(" + C + ")?" + V + C; // [C]VC... is m>0
+ var meq1 = "^(" + C + ")?" + V + C + "(" + V + ")?$"; // [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;
+ }
+}
+
+
+/**
+ * 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);
+ }
+ },
+
+ /**
+ * Sets the index
+ */
+ 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() {
+ Search._pulse_status = (Search._pulse_status + 1) % 4;
+ var dotString = '';
+ for (var 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
+ */
+ 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);
+
+ $('#search-progress').text(_('Preparing search...'));
+ this.startPulse();
+
+ // index already loaded, the browser was quick!
+ if (this.hasIndex())
+ this.query(query);
+ else
+ this.deferQuery(query);
+ },
+
+ query : function(query) {
+ // stem the searchterms and add them to the
+ // correct list
+ var stemmer = new PorterStemmer();
+ var searchterms = [];
+ var excluded = [];
+ var hlterms = [];
+ var tmp = query.split(/\s+/);
+ var object = (tmp.length == 1) ? tmp[0].toLowerCase() : null;
+ for (var i = 0; i < tmp.length; i++) {
+ // stem the word
+ var word = stemmer.stemWord(tmp[i]).toLowerCase();
+ // select the correct list
+ if (word[0] == '-') {
+ var toAppend = excluded;
+ word = word.substr(1);
+ }
+ else {
+ var toAppend = searchterms;
+ hlterms.push(tmp[i].toLowerCase());
+ }
+ // only add if not already in the list
+ if (!$.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 filenames = this._index.filenames;
+ var titles = this._index.titles;
+ var terms = this._index.terms;
+ var descrefs = this._index.descrefs;
+ var modules = this._index.modules;
+ var desctypes = this._index.desctypes;
+ var fileMap = {};
+ var files = null;
+ var objectResults = [];
+ var regularResults = [];
+ $('#search-progress').empty();
+
+ // lookup as object
+ if (object != null) {
+ for (var module in modules) {
+ if (module.indexOf(object) > -1) {
+ fn = modules[module];
+ descr = _('module, in ') + titles[fn];
+ objectResults.push([filenames[fn], module, '#module-'+module, descr]);
+ }
+ }
+ for (var prefix in descrefs) {
+ for (var name in descrefs[prefix]) {
+ var fullname = (prefix ? prefix + '.' : '') + name;
+ if (fullname.toLowerCase().indexOf(object) > -1) {
+ match = descrefs[prefix][name];
+ descr = desctypes[match[1]] + _(', in ') + titles[match[0]];
+ objectResults.push([filenames[match[0]], fullname, '#'+fullname, descr]);
+ }
+ }
+ }
+ }
+
+ // sort results descending
+ objectResults.sort(function(a, b) {
+ return (a[1] > b[1]) ? -1 : ((a[1] < b[1]) ? 1 : 0);
+ });
+
+
+ // perform the search on the required terms
+ for (var i = 0; i < searchterms.length; i++) {
+ var word = searchterms[i];
+ // no match but word was a required one
+ if ((files = terms[word]) == null)
+ break;
+ if (files.length == undefined) {
+ files = [files];
+ }
+ // create the mapping
+ for (var j = 0; j < files.length; j++) {
+ var 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 (var 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 (var i = 0; i < excluded.length; i++) {
+ if (terms[excluded[i]] == file ||
+ $.contains(terms[excluded[i]] || [], file)) {
+ valid = false;
+ break;
+ }
+ }
+
+ // if we have still a valid result we can add it
+ // to the result list
+ if (valid)
+ regularResults.push([filenames[file], titles[file], '', null]);
+ }
+
+ // delete unused variables in order to not waste
+ // memory until list is retrieved completely
+ delete filenames, titles, terms;
+
+ // now sort the regular results descending by title
+ regularResults.sort(function(a, b) {
+ var left = a[1].toLowerCase();
+ var right = b[1].toLowerCase();
+ return (left > right) ? -1 : ((left < right) ? 1 : 0);
+ });
+
+ // combine both
+ var results = regularResults.concat(objectResults);
+
+ // 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 = $('<li style="display:none"></li>');
+ listItem.append($('<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) {
+ $.get('_sources/' + item[0] + '.txt', function(data) {
+ listItem.append($.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();
+ }
+}
+
+$(document).ready(function() {
+ Search.init();
+});
projects / ipypbx / blobdiff