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-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
- "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-
-<html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <meta name="generator" content="HTML Tidy, see www.w3.org" />
-
- <title>Apache module mod_speling</title>
- </head>
- <!-- Background white, links blue (unvisited), navy (visited), red (active) -->
-
- <body bgcolor="#FFFFFF" text="#000000" link="#0000FF"
- vlink="#000080" alink="#FF0000">
- <div align="CENTER">
- <img src="../images/sub.gif" alt="[APACHE DOCUMENTATION]" />
-
- <h3>Apache HTTP Server Version 1.3</h3>
- </div>
-
-
- <h1 align="CENTER">Module mod_speling</h1>
-
- <p>This module attempts to correct misspellings of URLs that
- users might have entered, by ignoring capitalization and by
- allowing up to one misspelling.</p>
-
- <p><a href="module-dict.html#Status"
- rel="Help"><strong>Status:</strong></a> Extension<br />
- <a href="module-dict.html#SourceFile"
- rel="Help"><strong>Source File:</strong></a>
- mod_speling.c<br />
- <a href="module-dict.html#ModuleIdentifier"
- rel="Help"><strong>Module Identifier:</strong></a>
- speling_module<br />
- <a href="module-dict.html#Compatibility"
- rel="Help"><strong>Compatibility:</strong></a> Available in
- Apache 1.3 and later. Available as an External module in Apache
- 1.1 and later.</p>
-
- <h2>Summary</h2>
-
- <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>
-
- <h2>Directives</h2>
-
- <ul>
- <li><a href="#checkspelling">CheckSpelling</a></li>
- </ul>
- <hr />
- <!-- the HR is part of the directive description -->
-
- <h2><a id="checkspelling"
- name="checkspelling">CheckSpelling</a> directive</h2>
-
- <a href="directive-dict.html#Syntax"
- rel="Help"><strong>Syntax:</strong></a> CheckSpelling
- on|off<br />
- <a href="directive-dict.html#Default"
- rel="Help"><strong>Default:</strong></a> <code>CheckSpelling
- Off</code><br />
- <a href="directive-dict.html#Context"
- rel="Help"><strong>Context:</strong></a> server config, virtual
- host, directory, .htaccess<br />
- <a href="directive-dict.html#Override"
- rel="Help"><strong>Override:</strong></a> Options <br />
- <a href="directive-dict.html#Status"
- rel="Help"><strong>Status:</strong></a> Base<br />
- <a href="directive-dict.html#Module"
- rel="Help"><strong>Module:</strong></a> mod_speling<br />
- <a href="directive-dict.html#Compatibility"
- rel="Help"><strong>Compatibility:</strong></a> 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
- <samp>CheckSpelling</samp> directive was only available in the
- "server" and "virtual host" contexts.
-
- <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 <samp>&lt;Location /status&gt;</samp> may
- get incorrectly treated as the negotiated file
- "<samp>/stats.html</samp>".</li>
- </ul>
- <hr />
-
- <h3 align="CENTER">Apache HTTP Server Version 1.3</h3>
- <a href="./"><img src="../images/index.gif" alt="Index" /></a>
- <a href="../"><img src="../images/home.gif" alt="Home" /></a>
-
- </body>
-</html>
-