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<![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>Recoll user manual<br></br>Anchored searches and wildcards</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
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<a accesskey="n" class="navLinkNext" tabindex="5" href="RCL.SEARCH.WILDCARDS.PATH.html">Next</a></td></tr></table></div></div><div id="content"><div class="sect2"><div class="titlepage"><div><div><h3 class="title"><a id="RCL.SEARCH.WILDCARDS"></a>More about wildcards</h3></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect3"><a href="RCL.SEARCH.WILDCARDS.PATH.html">Wildcards and path filtering</a></span></dt></dl></div><p>All words entered in <span class="application">Recoll</span> search fields will be processed
for wildcard expansion before the request is finally
executed.</p><p>The wildcard characters are:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p><code class="literal">*</code> which matches 0 or more
characters.</p></li><li class="listitem"><p><code class="literal">?</code> which matches
a single character.</p></li><li class="listitem"><p><code class="literal">[]</code> which allow
defining sets of characters to be matched (ex:
<code class="literal">[</code><strong class="userinput"><code>abc</code></strong><code class="literal">]</code>
matches a single character which may be 'a' or 'b' or 'c',
<code class="literal">[</code><strong class="userinput"><code>0-9</code></strong><code class="literal">]</code>
matches any number.</p></li></ul></div><p>You should be aware of a few things when using
wildcards.</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>Using a wildcard character at the beginning of
a word can make for a slow search because <span class="application">Recoll</span> will have to
scan the whole index term list to find the
matches. However, this is much less a problem for field
searches, and queries
like <em class="replaceable"><code>author:*@domain.com</code></em> can
sometimes be very useful.</p></li><li class="listitem"><p>For <span class="application">Recoll</span> version 18 only, when working with a
raw index (preserving character case and diacritics), the
literal part of a wildcard expression will be matched
exactly for case and diacritics. This is not true any
more for versions 19 and later.</p></li><li class="listitem"><p>Using a <code class="literal">*</code> at the end of a
word can produce more matches than you would think, and
strange search results. You can use the
<a class="link" href="RCL.SEARCH.GUI.TERMEXPLORER.html" title="The term explorer tool">term
explorer</a> tool to check what completions exist for
a given term. You can also see exactly what search was
performed by clicking on the link at the top of the result
list. In general, for natural language terms, stem
expansion will produce better results than an
ending <code class="literal">*</code> (stem expansion is turned off
when any wildcard character appears in the
term).</p></li></ul></div></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="RCL.SEARCH.ANCHORWILD.html">Prev</a>��</td><td width="20%" align="center"><a accesskey="u" href="RCL.SEARCH.ANCHORWILD.html">Up</a></td><td width="40%" align="right">��<a accesskey="n" href="RCL.SEARCH.WILDCARDS.PATH.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="RCL.INTRODUCTION.html" tabindex="1">Introduction</a></span><ul><li><span class="file"><a href="RCL.INTRODUCTION.TRYIT.html" tabindex="1">Giving it a try</a></span></li><li><span class="file"><a href="RCL.INTRODUCTION.SEARCH.html" tabindex="1">Full text search</a></span></li><li><span class="file"><a href="RCL.INTRODUCTION.RECOLL.html" tabindex="1">Recoll overview</a></span></li></ul></li><li><span class="file"><a href="RCL.INDEXING.html" tabindex="1">Indexing</a></span><ul><li><span class="file"><a href="RCL.INDEXING.INTRODUCTION.html" tabindex="1">Introduction</a></span><ul><li><span class="file"><a href="RCL.INDEXING.INTRODUCTION.MODES.html" tabindex="1">Indexing modes</a></span></li><li><span class="file"><a href="RCL.INDEXING.INTRODUCTION.CONFIG.html" tabindex="1">Configurations, multiple indexes</a></span></li><li><span class="file"><a href="ch02s01s03.html" tabindex="1">Document types</a></span></li><li><span class="file"><a href="ch02s01s04.html" tabindex="1">Indexing failures</a></span></li><li><span class="file"><a href="ch02s01s05.html" tabindex="1">Recovery</a></span></li></ul></li><li><span class="file"><a href="RCL.INDEXING.STORAGE.html" tabindex="1">Index storage</a></span><ul><li><span class="file"><a href="RCL.INDEXING.STORAGE.FORMAT.html" tabindex="1">Xapian index formats</a></span></li><li><span class="file"><a href="RCL.INDEXING.STORAGE.SECURITY.html" tabindex="1">Security aspects</a></span></li></ul></li><li><span class="file"><a href="RCL.INDEXING.CONFIG.html" tabindex="1">Index configuration</a></span><ul><li><span class="file"><a href="RCL.INDEXING.CONFIG.MULTIPLE.html" tabindex="1">Multiple indexes</a></span></li><li><span class="file"><a href="RCL.INDEXING.CONFIG.SENS.html" tabindex="1">Index case and diacritics sensitivity</a></span></li><li><span class="file"><a href="RCL.INDEXING.CONFIG.GUI.html" tabindex="1">The index configuration GUI</a></span></li></ul></li><li><span class="file"><a href="RCL.INDEXING.WEBQUEUE.html" tabindex="1">Indexing WEB pages you wisit</a></span></li><li><span class="file"><a href="RCL.INDEXING.EXTATTR.html" tabindex="1">Extended attributes data</a></span></li><li><span class="file"><a href="RCL.INDEXING.EXTTAGS.html" tabindex="1">Importing external tags</a></span></li><li><span class="file"><a href="RCL.INDEXING.PERIODIC.html" tabindex="1">Periodic indexing</a></span><ul><li><span class="file"><a href="RCL.INDEXING.PERIODIC.EXEC.html" tabindex="1">Running indexing</a></span></li><li><span class="file"><a href="RCL.INDEXING.PERIODIC.AUTOMAT.html" tabindex="1">Using cron to automate
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