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<div id="preamble"><h1>Apache Module mod_speling</h1>
<div class="toplang">
<p><span>Available Languages: </span><a href="../en/mod/mod_speling.html" title="English">&nbsp;en&nbsp;</a> |
<a href="../ja/mod/mod_speling.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
<a href="../ko/mod/mod_speling.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a></p>
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<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Attempts to correct mistaken URLs that
users might have entered by ignoring capitalization and by
allowing up to one misspelling</td></tr>
<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr>
<tr><th><a href="module-dict.html#ModuleIdentifier">Module�Identifier:</a></th><td>speling_module</td></tr>
<tr><th><a href="module-dict.html#SourceFile">Source�File:</a></th><td>mod_speling.c</td></tr></table>
<h3>Summary</h3>


    <p>Requests to documents sometimes cannot be served by the core
    apache server because the request was misspelled or
    miscapitalized. This module addresses this problem by trying to
    find a matching document, even after all other modules gave up.
    It does its work by comparing each document name in the
    requested directory against the requested document name
    <strong>without regard to case</strong>, and allowing
    <strong>up to one misspelling</strong> (character insertion /
    omission / transposition or wrong character). A list is built
    with all document names which were matched using this
    strategy.</p>

    <p>If, after scanning the directory,</p>

    <ul>
      <li>no matching document was found, Apache will proceed as
      usual and return a "document not found" error.</li>

      <li>only one document is found that "almost" matches the
      request, then it is returned in the form of a redirection
      response.</li>

      <li>more than one document with a close match was found, then
      the list of the matches is returned to the client, and the
      client can select the correct candidate.</li>
    </ul>

</div>
<div id="quickview"><h3 class="directives">Directives</h3>
<ul id="toc">
<li><img alt="" src="../images/down.gif" /> <a href="#checkspelling">CheckSpelling</a></li>
</ul>
</div>

<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="directive-section"><h2><a name="CheckSpelling" id="CheckSpelling">CheckSpelling</a> <a name="checkspelling" id="checkspelling">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Enables the spelling 
module</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>CheckSpelling on|off</code></td></tr>
<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>CheckSpelling Off</code></td></tr>
<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Options</td></tr>
<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_speling</td></tr>
<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>CheckSpelling was available as a separately available
module for Apache 1.1, but was limited to miscapitalizations. As
of Apache 1.3, it is part of the Apache distribution. Prior to Apache
1.3.2, the <code>CheckSpelling</code> directive was only available in the
"server" and "virtual host" contexts.</td></tr>
</table>

    <p>This directive enables or disables the spelling module. When
    enabled, keep in mind that</p>

    <ul>
      <li>the directory scan which is necessary for the spelling
      correction will have an impact on the server's performance
      when many spelling corrections have to be performed at the
      same time.</li>

      <li>the document trees should not contain sensitive files
      which could be matched inadvertently by a spelling
      "correction".</li>

      <li>the module is unable to correct misspelled user names (as
      in <code>http://my.host/~apahce/</code>), just file names or
      directory names.</li>

      <li>spelling corrections apply strictly to existing files, so
      a request for the <code>&lt;Location /status&gt;</code> may
      get incorrectly treated as the negotiated file
      "<code>/stats.html</code>".</li>
    </ul>

</div>
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<p><span>Available Languages: </span><a href="../en/mod/mod_speling.html" title="English">&nbsp;en&nbsp;</a> |
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