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- <link rel="stylesheet" type="text/css" href="../common/css/ie.css"/>
- <![endif]--><script type="text/javascript" src="common/browserDetect.js"></script><script type="text/javascript" src="common/jquery/jquery-1.7.2.min.js"></script><script type="text/javascript" src="common/jquery/jquery.ui.all.js"></script><script type="text/javascript" src="common/jquery/jquery.cookie.js"></script><script type="text/javascript" src="common/jquery/treeview/jquery.treeview.min.js"></script><script type="text/javascript" src="common/jquery/layout/jquery.layout.js"></script><script type="text/javascript" src="search/l10n.js"></script><script type="text/javascript" src="search/htmlFileInfoList.js"></script><script type="text/javascript" src="search/nwSearchFnt.js"></script><script type="text/javascript" src="search/stemmers/en_stemmer.js"><!--//make this scalable to other languages as well.--></script><script type="text/javascript" src="search/index-1.js"></script><script type="text/javascript" src="search/index-2.js"></script><script type="text/javascript" src="search/index-3.js"></script></head><body><noscript><div id="noscript">JavaScript is disabled on your browser. Please enable JavaScript to enjoy all the features of this site.</div></noscript><div id="header"><a href="index.html"><img style="margin-right: 2px; height: 59px; padding-right: 25px; padding-top: 8px" align="right" src="common/images/logo.png" alt=" Documentation"></img></a><h1>README: Web-based Help from DocBook XML<br></br>Developer Docs</h1><div id="navheader"><table class="navLinks"><tr><td><a id="showHideButton" href="#" onclick="myLayout.toggle('west')" class="pointLeft" tabindex="5" title="Hide TOC tree">Sidebar
- </a></td><td><a accesskey="p" class="navLinkPrevious" tabindex="5" href="ch03s01.html">Prev</a>
- |
- <a accesskey="u" class="navLinkUp" tabindex="5" href="ch03.html">Up</a>
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- <a accesskey="n" class="navLinkNext" tabindex="5" href="ch03s02s01.html">Next</a></td></tr></table></div></div><div id="content"><div class="section"><div xmlns="" class="titlepage"><div><div><h2 xmlns="http://www.w3.org/1999/xhtml" class="title" style="clear: both"><a id="idp282832"></a>Search</h2></div></div></div>
- <div class="toc"><dl class="toc"><dt><span class="section"><a href="ch03s02s01.html">New Stemmers</a></span></dt></dl></div><p class="summary">Overview design of Search mechanism.</p><p>The serching is a fully client-side implementation of querying texts for content
- searching. There's no server involved. So, the search queries by the users are processed by
- JavaScript inside the browser, and displays the matching results by comparing the query with
- a simplified 'index' that too resides in JavaScript. Mainly the search mechanism has two
- parts. </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Indexing: First we need to traverse the content in
- the docs folder and index the words in it. This is done
- by <code class="filename">webhelpindexer.jar</code> in
- <code class="filename">xsl/extentions/</code> folder. You can
- invoke it by <code class="code">ant index</code> command from the
- root of webhelp of directory. The source of
- webhelpindexer is now moved to it's own location at
- <code class="filename">trunk/xsl-webhelpindexer/</code>.
- Checkout the Docbook trunk svn directory to get this
- source. Then, do your changes and recompile it by simply
- running <code class="code">ant</code> command. My assumption is that
- it can be opened by Netbeans IDE by one click. Or if you
- are using IntelliJ Idea, you can simply create a new
- project from existing sources. Indexer has extensive
- support for features such as word scoring, stemming of
- words, and support for languages English, German,
- French. For CJK (Chinese, Japanese, Korean) languages,
- it uses bi-gram tokenizing to break up the words (since
- CJK languages does not have spaces between
- words).</p><p> When <code class="code">ant index</code> is run, it generates five output files: </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p><code class="filename">htmlFileList.js</code> - This contains an array named
- <code class="code">fl</code> which stores details all the files indexed by the indexer.
- Further, the doStem in it defines whether stemming should be used. It defaults
- to false.</p></li><li class="listitem"><p><code class="filename">htmlFileInfoList.js</code> -
- This includes some meta data about the indexed
- files in an array named <code class="code">fil</code>. It
- includes details about file name, file (html)
- title, a summary of the content. Format would look
- like, <code class="code">fil["4"]= "ch03.html@@@Developer
- Docs@@@This chapter provides an overview of how
- webhelp is implemented.";</code>
- </p></li><li class="listitem"><p><code class="filename">index-*.js</code> (Three index files) - These three files
- actually stores the index of the content. Index is added to an array named
- <code class="code">w</code>.</p></li></ul></div></li><li class="listitem"><p> Querying: Query processing happens totally in client side. Following JavaScript
- files handles them. </p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"><p><code class="filename">nwSearchFnt.js</code> - This handles the user query and
- returns the search results. It does query word tokenizing, drop unnecessary
- punctuations and common words, do stemming if docbook language supports it,
- etc.</p></li><li class="listitem"><p><code class="filename">{$indexer-language-code}_stemmer.js</code> - This includes the
- stemming library. <code class="filename">nwSearchFnt.js</code> file calls
- <code class="code">stemmer</code> method in this file for stemming. ex: <code class="code">var stem =
- stemmer(foobar);</code>
- </p></li></ul></div><p>
- </p></li></ul></div><p>
- <a id="idp304304" class="indexterm"></a></p></div><script type="text/javascript" src="common/main.js"></script><script type="text/javascript" src="common/splitterInit.js"></script><div class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch03s01.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch03.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="ch03s02s01.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> </td></tr></table></div></div><div id="sidebar"><div id="leftnavigation" style="padding-top:3px;"><div id="tabs"><ul><li><a href="#treeDiv" style="outline:0;" tabindex="1"><span class="contentsTab">Contents</span></a></li><li><a href="#searchDiv" style="outline:0;" tabindex="1" onclick="doSearch()"><span class="searchTab">Search</span></a></li></ul><div id="treeDiv"><img src="common/images/loading.gif" alt="loading table of contents..." id="tocLoading" style="display:block;"></img><div id="ulTreeDiv" style="display:none"><ul id="tree" class="filetree"><li><span class="file"><a href="ch01.html" tabindex="1">Introduction</a></span></li><li><span class="file"><a href="ch02.html" tabindex="1">Using the package</a></span><ul><li><span class="file"><a href="ch02s01.html" tabindex="1">Generating webhelp output using the Ant build.xml
- file</a></span></li><li><span class="file"><a href="ch02s02.html" tabindex="1">Using and customizing the output</a></span><ul><li><span class="file"><a href="ch02s02s01.html" tabindex="1">Recommended Apache configurations</a></span></li></ul></li><li><span class="file"><a href="ch02s03.html" tabindex="1">Search indexing</a></span></li><li><span class="file"><a href="ch02s04.html" tabindex="1">Adding support for other (non-CJKV) languages</a></span></li><li><span class="file"><a href="ch02s05.html" tabindex="1">Adding images</a></span></li></ul></li><li><span class="file"><a href="ch03.html" tabindex="1">Developer Docs</a></span><ul><li><span class="file"><a href="ch03s01.html" tabindex="1">Design</a></span></li><li id="webhelp-currentid"><span class="file"><a href="ch03s02.html" tabindex="1">Search</a></span><ul><li><span class="file"><a href="ch03s02s01.html" tabindex="1">New Stemmers</a></span></li></ul></li></ul></li><li><span class="file"><a href="ch04.html" tabindex="1">FAQ</a></span></li><li><span class="file"><a href="ch05.html" tabindex="1">Test section</a></span><ul><li><span class="file"><a href="ch05s01.html" tabindex="1">Some search words for testing</a></span></li><li><span class="file"><a href="ch05s02.html" tabindex="1">Some search words for testing (inflected)</a></span></li></ul></li><li><span class="file"><a href="ix01.html" tabindex="1">Index</a></span></li></ul></div></div><div id="searchDiv"><div id="search"><form onsubmit="Verifie(searchForm);return false" name="searchForm" class="searchForm"><div><input id="textToSearch" name="textToSearch" type="search" placeholder="Search" class="searchText" tabindex="1"></input> <input onclick="Verifie(searchForm)" type="button" class="searchButton" value="Go" id="doSearch" tabindex="1"></input></div></form></div><div id="searchResults"><center></center></div><p class="searchHighlight"><a href="#" onclick="toggleHighlight()">Search Highlighter (On/Off)</a></p></div></div></div></div></body></html>
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