/[web]/doc/installer/2/en/content/search/nwSearchFnt.js

Diff of /doc/installer/2/en/content/search/nwSearchFnt.js

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-revision 1413 by grenoya,
Thu Jul  5 20:27:42 2012 UTC
+revision 1414 by grenoya,
Mon Jul  9 16:04:10 2012 UTC
 Line 1
  /*----------------------------------------------------------------------------
   * JavaScript for webhelp search
   *----------------------------------------------------------------------------
   This file is part of the webhelpsearch plugin for DocBook WebHelp
   Copyright (c) 2007-2008 NexWave Solutions All Rights Reserved.
   www.nexwave.biz Nadege Quaine
   http://kasunbg.blogspot.com/ Kasun Gajasinghe
   */
  //string initialization
  var htmlfileList = "htmlFileList.js";
  var htmlfileinfoList = "htmlFileInfoList.js";
  var useCJKTokenizing = false;
  /* Cette fonction verifie la validite de la recherche entrre par l utilisateur */
  function Verifie(ditaSearch_Form) {
      // Check browser compatibitily
      if (navigator.userAgent.indexOf("Konquerer") > -1) {
          alert(txt_browser_not_supported);
          return;
      }
      var expressionInput = document.ditaSearch_Form.textToSearch.value;
      //Set a cookie to store the searched keywords
      $.cookie('textToSearch', expressionInput);
      if (expressionInput.length < 1) {
          // expression is invalid
          alert(txt_enter_at_least_1_char);
          // reactive la fenetre de search (utile car cadres)
          document.ditaSearch_Form.textToSearch.focus();
      }
      else {
          // Effectuer la recherche
          Effectuer_recherche(expressionInput);
          // reactive la fenetre de search (utile car cadres)
          document.ditaSearch_Form.textToSearch.focus();
      }
  }
  var stemQueryMap = new Array();  // A hashtable which maps stems to query words
  /* This function parses the search expression, loads the indices and displays the results*/
  function Effectuer_recherche(expressionInput) {
      /* Display a waiting message */
      //DisplayWaitingMessage();
      /*data initialisation*/
      var searchFor = "";       // expression en lowercase et sans les caracte    res speciaux
      //w = new Object();  // hashtable, key=word, value = list of the index of the html files
      scriptLetterTab = new Scriptfirstchar(); // Array containing the first letter of each word to look for
      var wordsList = new Array(); // Array with the words to look for
      var finalWordsList = new Array(); // Array with the words to look for after removing spaces
      var linkTab = new Array();
      var fileAndWordList = new Array();
      var txt_wordsnotfound = "";
      /*nqu: expressionInput, la recherche est lower cased, plus remplacement des char speciaux*/
      searchFor = expressionInput.toLowerCase().replace(/<\//g, "_st_").replace(/\$_/g, "_di_").replace(/\.|%2C|%3B|%21|%3A|@|\/|\*/g, " ").replace(/(%20)+/g, " ").replace(/_st_/g, "</").replace(/_di_/g, "%24_");
      searchFor = searchFor.replace(/  +/g, " ");
      searchFor = searchFor.replace(/ $/, "").replace(/^ /, "");
      wordsList = searchFor.split(" ");
      wordsList.sort();
      //set the tokenizing method
      if(typeof indexerLanguage != "undefined" && (indexerLanguage=="zh" || indexerLanguage=="ja" ||indexerLanguage=="ko")){
          useCJKTokenizing=true;
      } else {
          useCJKTokenizing=false;
      }
      //If Lucene CJKTokenizer was used as the indexer, then useCJKTokenizing will be true. Else, do normal tokenizing.
      // 2-gram tokenizinghappens in CJKTokenizing,
      if(useCJKTokenizing){
          finalWordsList = cjkTokenize(wordsList);
      } else {
          finalWordsList = tokenize(wordsList);
      }
      //load the scripts with the indices: the following lines do not work on the server. To be corrected
      /*if (IEBrowser) {
       scriptsarray = loadTheIndexScripts (scriptLetterTab);
       } */
      /**
       * Compare with the indexed words (in the w[] array), and push words that are in it to tempTab.
       */
      var tempTab = new Array();
      for (var t in finalWordsList) {
          if (w[finalWordsList[t].toString()] == undefined) {
              txt_wordsnotfound += finalWordsList[t] + " ";
          } else {
              tempTab.push(finalWordsList[t]);
          }
      }
      finalWordsList = tempTab;
      if (finalWordsList.length) {
          //search 'and' and 'or' one time
          fileAndWordList = SortResults(finalWordsList);
          var cpt = fileAndWordList.length;
          for (var i = cpt - 1; i >= 0; i--) {
              if (fileAndWordList[i] != undefined) {
                  linkTab.push("<p>" + txt_results_for + " " + "<span class=\"searchExpression\">" + fileAndWordList[i][0].motslisteDisplay + "</span>" + "</p>");
                  linkTab.push("<ul class='searchresult'>");
                  for (t in fileAndWordList[i]) {
                      //DEBUG: alert(": "+ fileAndWordList[i][t].filenb+" " +fileAndWordList[i][t].motsliste);
                      //linkTab.push("<li><a href=\"../"+fl[fileAndWordList[i][t].filenb]+"\">"+fl[fileAndWordList[i][t].filenb]+"</a></li>");
                      var tempInfo = fil[fileAndWordList[i][t].filenb];
                      var pos1 = tempInfo.indexOf("@@@");
                      var pos2 = tempInfo.lastIndexOf("@@@");
                      var tempPath = tempInfo.substring(0, pos1);
                      var tempTitle = tempInfo.substring(pos1 + 3, pos2);
                      var tempShortdesc = tempInfo.substring(pos2 + 3, tempInfo.length);
                      //file:///home/kasun/docbook/WEBHELP/webhelp-draft-output-format-idea/src/main/resources/web/webhelp/installation.html
                      var linkString = "<li><a href=" + tempPath + ">" + tempTitle + "</a>";
                      // var linkString = "<li><a href=\"installation.html\">" + tempTitle + "</a>";
                      if ((tempShortdesc != "null")) {
                          linkString += "\n<div class=\"shortdesclink\">" + tempShortdesc + "</div>";
                      }
                      linkString += "</li>";
                      linkTab.push(linkString);
                  }
                  linkTab.push("</ul>");
              }
          }
      }
      var results = "";
      if (linkTab.length > 0) {
          /*writeln ("<p>" + txt_results_for + " " + "<span class=\"searchExpression\">"  + cleanwordsList + "</span>" + "<br/>"+"</p>");*/
          results = "<p>";
          //write("<ul class='searchresult'>");
          for (t in linkTab) {
              results += linkTab[t].toString();
          }
          results += "</p>";
      } else {
          results = "<p>" + "Your search returned no results for " + "<span class=\"searchExpression\">" + txt_wordsnotfound + "</span>" + "</p>";
      }
      //alert(results);
      document.getElementById('searchResults').innerHTML = results;
  }
  function tokenize(wordsList){
      var stemmedWordsList = new Array(); // Array with the words to look for after removing spaces
      var cleanwordsList = new Array(); // Array with the words to look for
      for(var j in wordsList){
          var word = wordsList[j];
          if(typeof stemmer != "undefined" ){
              stemQueryMap[stemmer(word)] = word;
          } else {
              stemQueryMap[word] = word;
          }
      }
       //stemmedWordsList is the stemmed list of words separated by spaces.
      for (var t in wordsList) {
          wordsList[t] = wordsList[t].replace(/(%22)|^-/g, "");
          if (wordsList[t] != "%20") {
              scriptLetterTab.add(wordsList[t].charAt(0));
              cleanwordsList.push(wordsList[t]);
          }
      }
      if(typeof stemmer != "undefined" ){
          //Do the stemming using Porter's stemming algorithm
          for (var i = 0; i < cleanwordsList.length; i++) {
              var stemWord = stemmer(cleanwordsList[i]);
              stemmedWordsList.push(stemWord);
          }
      } else {
          stemmedWordsList = cleanwordsList;
      }
      return stemmedWordsList;
  }
  //Invoker of CJKTokenizer class methods.
  function cjkTokenize(wordsList){
      var allTokens= new Array();
      var notCJKTokens= new Array();
      var j=0;
      for(j=0;j<wordsList.length;j++){
          var word = wordsList[j];
          if(getAvgAsciiValue(word) < 127){
              notCJKTokens.push(word);
          } else {
              var tokenizer = new CJKTokenizer(word);
              var tokensTmp = tokenizer.getAllTokens();
              allTokens = allTokens.concat(tokensTmp);
          }
      }
      allTokens = allTokens.concat(tokenize(notCJKTokens));
      return allTokens;
  }
  //A simple way to determine whether the query is in english or not.
  function getAvgAsciiValue(word){
      var tmp = 0;
      var num = word.length < 5 ? word.length:5;
      for(var i=0;i<num;i++){
          if(i==5) break;
          tmp += word.charCodeAt(i);
      }
      return tmp/num;
  }
  //CJKTokenizer
  function CJKTokenizer(input){
      this.input = input;
      this.offset=-1;
      this.tokens = new Array();
      this.incrementToken = incrementToken;
      this.tokenize = tokenize;
      this.getAllTokens = getAllTokens;
      this.unique = unique;
      function incrementToken(){
                  if(this.input.length - 2 <= this.offset){
                  //      console.log("false "+offset);
                          return false;
                  }
                  else {
                          this.offset+=1;
                          return true;
                  }
          }
          function tokenize(){
                  //document.getElementById("content").innerHTML += x.substring(offset,offset+2)+"<br>";
                  return this.input.substring(this.offset,this.offset+2);
          }
          function getAllTokens(){
                  while(this.incrementToken()){
                          var tmp = this.tokenize();
                          this.tokens.push(tmp);
                  }
          return this.unique(this.tokens);
  //              document.getElementById("content").innerHTML += tokens+" ";
  //              document.getElementById("content").innerHTML += "<br>dada"+sortedTokens+" ";
  //              console.log(tokens.length+"dsdsds");
                  /*for(i=0;i<tokens.length;i++){
                          console.log(tokens[i]);
                          var ss = tokens[i] == sortedTokens[i];
  //                      document.getElementById("content").innerHTML += "<br>dada"+un[i]+"- "+stems[i]+"&nbsp;&nbsp;&nbsp;"+ ss;
                          document.getElementById("content").innerHTML += "<br>"+sortedTokens[i];
                  }*/
          }
          function unique(a)
          {
             var r = new Array();
             o:for(var i = 0, n = a.length; i < n; i++)
             {
                for(var x = 0, y = r.length; x < y; x++)
                {
                   if(r[x]==a[i]) continue o;
                }
                r[r.length] = a[i];
             }
             return r;
          }
  }
  /* Scriptfirstchar: to gather the first letter of index js files to upload */
  function Scriptfirstchar() {
      this.strLetters = "";
      this.add = addLettre;
  }
  function addLettre(caract) {
      if (this.strLetters == 'undefined') {
          this.strLetters = caract;
      } else if (this.strLetters.indexOf(caract) < 0) {
          this.strLetters += caract;
      }
      return 0;
  }
  /* end of scriptfirstchar */
  /*main loader function*/
  /*tab contains the first letters of each word looked for*/
  function loadTheIndexScripts(tab) {
      //alert (tab.strLetters);
      var scriptsarray = new Array();
      for (var i = 0; i < tab.strLetters.length; i++) {
          scriptsarray[i] = "..\/search" + "\/" + tab.strLetters.charAt(i) + ".js";
      }
      // add the list of html files
      i++;
      scriptsarray[i] = "..\/search" + "\/" + htmlfileList;
      //debug
      for (var t in scriptsarray) {
          //alert (scriptsarray[t]);
      }
      tab = new ScriptLoader();
      for (t in scriptsarray) {
          tab.add(scriptsarray[t]);
      }
      tab.load();
      //alert ("scripts loaded");
      return (scriptsarray);
  }
  /* ScriptLoader: to load the scripts and wait that it's finished */
  function ScriptLoader() {
      this.cpt = 0;
      this.scriptTab = new Array();
      this.add = addAScriptInTheList;
      this.load = loadTheScripts;
      this.onScriptLoaded = onScriptLoadedFunc;
  }
  function addAScriptInTheList(scriptPath) {
      this.scriptTab.push(scriptPath);
  }
  function loadTheScripts() {
      var script;
      var head;
      head = document.getElementsByTagName('head').item(0);
      //script = document.createElement('script');
      for (var el in this.scriptTab) {
          //alert (el+this.scriptTab[el]);
          script = document.createElement('script');
          script.src = this.scriptTab[el];
          script.type = 'text/javascript';
          script.defer = false;
          head.appendChild(script);
      }
  }
  function onScriptLoadedFunc(e) {
      e = e || window.event;
      var target = e.target || e.srcElement;
      var isComplete = true;
      if (typeof target.readyState != undefined) {
          isComplete = (target.readyState == "complete" || target.readyState == "loaded");
      }
      if (isComplete) {
          ScriptLoader.cpt++;
          if (ScriptLoader.cpt == ScriptLoader.scripts.length) {
              ScriptLoader.onLoadComplete();
          }
      }
  }
  /*
  function onLoadComplete() {
      alert("loaded !!");
  } */
  /* End of scriptloader functions */
  // Array.unique( strict ) - Remove duplicate values
  function unique(tab) {
      var a = new Array();
      var i;
      var l = tab.length;
      if (tab[0] != undefined) {
          a[0] = tab[0];
      }
      else {
          return -1
      }
      for (i = 1; i < l; i++) {
          if (indexof(a, tab[i], 0) < 0) {
              a.push(tab[i]);
          }
      }
      return a;
  }
  function indexof(tab, element, begin) {
      for (var i = begin; i < tab.length; i++) {
          if (tab[i] == element) {
              return i;
          }
      }
      return -1;
  }
  /* end of Array functions */
  /*
   Param: mots= list of words to look for.
   This function creates an hashtable:
   - The key is the index of a html file which contains a word to look for.
   - The value is the list of all words contained in the html file.
   Return value: the hashtable fileAndWordList
   */
  function SortResults(mots) {
      var fileAndWordList = new Object();
      if (mots.length == 0) {
          return null;
      }
      for (var t in mots) {
          // get the list of the indices of the files.
          var listNumerosDesFicStr = w[mots[t].toString()];
          //alert ("listNumerosDesFicStr "+listNumerosDesFicStr);
          var tab = listNumerosDesFicStr.split(",");
          //for each file (file's index):
          for (var t2 in tab) {
              var temp = tab[t2].toString();
              if (fileAndWordList[temp] == undefined) {
                  fileAndWordList[temp] = "" + mots[t];
              } else {
                  fileAndWordList[temp] += "," + mots[t];
              }
          }
      }
      var fileAndWordListValuesOnly = new Array();
      // sort results according to values
      var temptab = new Array();
      for (t in fileAndWordList) {
          tab = fileAndWordList[t].split(',');
          var tempDisplay = new Array();
          for (var x in tab) {
              if(stemQueryMap[tab[x]] != undefined){
                  tempDisplay.push(stemQueryMap[tab[x]]); //get the original word from the stem word.
              } else {
                  tempDisplay.push(tab[x]); //no stem is available. (probably a CJK language)
              }
          }
          var tempDispString = tempDisplay.join(", ");
          temptab.push(new resultPerFile(t, fileAndWordList[t], tab.length, tempDispString));
          fileAndWordListValuesOnly.push(fileAndWordList[t]);
      }
      //alert("t"+fileAndWordListValuesOnly.toString());
      fileAndWordListValuesOnly = unique(fileAndWordListValuesOnly);
      fileAndWordListValuesOnly = fileAndWordListValuesOnly.sort(compare_nbMots);
      //alert("t: "+fileAndWordListValuesOnly.join(';'));
      var listToOutput = new Array();
      for (var j in fileAndWordListValuesOnly) {
          for (t in temptab) {
              if (temptab[t].motsliste == fileAndWordListValuesOnly[j]) {
                  if (listToOutput[j] == undefined) {
                      listToOutput[j] = new Array(temptab[t]);
                  } else {
                      listToOutput[j].push(temptab[t]);
                  }
              }
          }
      }
      return listToOutput;
  }
  function resultPerFile(filenb, motsliste, motsnb, motslisteDisplay) {
      this.filenb = filenb;
      this.motsliste = motsliste;
      this.motsnb = motsnb;
      this.motslisteDisplay= motslisteDisplay;
  }
  function compare_nbMots(s1, s2) {
      var t1 = s1.split(',');
      var t2 = s2.split(',');
      //alert ("s1:"+t1.length + " " +t2.length)
      if (t1.length == t2.length) {
          return 0;
      } else if (t1.length > t2.length) {
          return 1;
      } else {
          return -1;
      }
      //return t1.length - t2.length);
  }

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