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65 lines
4.9 KiB
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--><title>mod_speling- Apache HTTP Server</title><link href="../style/manual.css" type="text/css" rel="stylesheet"/></head><body><blockquote><div align="center"><img src="../images/sub.gif" alt="[APACHE DOCUMENTATION]"/><h3>Apache HTTP Server Version 2.0</h3></div><h1 align="center">Apache Module mod_speling</h1><table cellspacing="1" cellpadding="0" bgcolor="#cccccc"><tr><td><table bgcolor="#ffffff"><tr><td nowrap="nowrap" valign="top"><span class="help">Description:</span></td><td>Attempts to correct mistaken URLs that
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users might have entered by ignoring capitalization and by
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allowing up to one misspelling</td></tr><tr><td nowrap="nowrap"><a href="module-dict.html#Status" class="help">Status:</a></td><td>Extension</td></tr><tr><td nowrap="nowrap"><a href="module-dict.html#ModuleIdentifier" class="help">Module Identifier:</a></td><td>speling_module</td></tr></table></td></tr></table><h2>Summary</h2>
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<p>Requests to documents sometimes cannot be served by the core
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apache server because the request was misspelled or
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miscapitalized. This module addresses this problem by trying to
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find a matching document, even after all other modules gave up.
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It does its work by comparing each document name in the
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requested directory against the requested document name
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<strong>without regard to case</strong>, and allowing
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<strong>up to one misspelling</strong> (character insertion /
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omission / transposition or wrong character). A list is built
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with all document names which were matched using this
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strategy.</p>
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<p>If, after scanning the directory,</p>
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<ul>
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<li>no matching document was found, Apache will proceed as
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usual and return a "document not found" error.</li>
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<li>only one document is found that "almost" matches the
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request, then it is returned in the form of a redirection
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response.</li>
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<li>more than one document with a close match was found, then
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the list of the matches is returned to the client, and the
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client can select the correct candidate.</li>
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</ul>
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<h2>Directives</h2><ul><li><a href="#checkspelling">CheckSpelling</a></li></ul><hr/><h2><a name="CheckSpelling">CheckSpelling</a> <a name="checkspelling">Directive</a></h2><table cellpadding="1" cellspacing="0" border="0" bgcolor="#cccccc"><tr><td><table bgcolor="#ffffff"><tr><td nowrap="nowrap"><strong>Description: </strong></td><td>Enables the spelling
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module</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Syntax" class="help">Syntax:</a></td><td>CheckSpelling on|off</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Default" class="help">Default:</a></td><td><code>CheckSpelling Off</code></td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Context" class="help">Context:</a></td><td>server config, virtual host, directory, .htaccess</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Override" class="help">Override:</a></td><td>Options</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Status" class="help">Status:</a></td><td>Extension</td></tr><tr><td nowrap="nowrap"><a href="directive-dict.html#Module" class="help">Module:</a></td><td>mod_speling</td></tr><tr><td nowrap="nowrap" align="left" valign="top"><a href="directive-dict.html#Compatibility" class="help">Compatibility:</a></td><td>CheckSpelling was available as a separately available
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module for Apache 1.1, but was limited to miscapitalizations. As
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of Apache 1.3, it is part of the Apache distribution. Prior to Apache
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1.3.2, the CheckSpelling directive was only available in the
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"server" and "virtual host" contexts.</td></tr></table></td></tr></table>
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<p>This directive enables or disables the spelling module. When
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enabled, keep in mind that</p>
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<ul>
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<li>the directory scan which is necessary for the spelling
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correction will have an impact on the server's performance
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when many spelling corrections have to be performed at the
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same time.</li>
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<li>the document trees should not contain sensitive files
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which could be matched inadvertently by a spelling
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"correction".</li>
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<li>the module is unable to correct misspelled user names (as
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in <code>http://my.host/~apahce/</code>), just file names or
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directory names.</li>
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<li>spelling corrections apply strictly to existing files, so
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a request for the <code><Location /status></code> may
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get incorrectly treated as the negotiated file
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"<code>/stats.html</code>".</li>
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</ul>
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<hr/></blockquote><h3 align="center">Apache HTTP Server Version 2.0</h3><a href="./"><img src="../images/index.gif" alt="Index"/></a><a href="../"><img src="../images/home.gif" alt="Home"/></a></body></html> |