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git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@421086 13f79535-47bb-0310-9956-ffa450edef68
151 lines
7.9 KiB
XML
151 lines
7.9 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!--
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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This file is generated from xml source: DO NOT EDIT
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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
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-->
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<title>mod_version - Apache HTTP Server</title>
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<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
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<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
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<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" />
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<link href="../images/favicon.ico" rel="shortcut icon" /></head>
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<body>
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<div id="page-header">
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<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
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<p class="apache">Apache HTTP Server Version 2.3</p>
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<img alt="" src="../images/feather.gif" /></div>
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<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
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<div id="path">
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<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.3</a> > <a href="./">Modules</a></div>
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<div id="page-content">
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<div id="preamble"><h1>Apache Module mod_version</h1>
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<div class="toplang">
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<p><span>Available Languages: </span><a href="../en/mod/mod_version.html" title="English"> en </a> |
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<a href="../ja/mod/mod_version.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
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<a href="../ko/mod/mod_version.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
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</div>
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<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Version dependent configuration</td></tr>
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<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr>
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<tr><th><a href="module-dict.html#ModuleIdentifier">Module<EFBFBD>Identifier:</a></th><td>version_module</td></tr>
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<tr><th><a href="module-dict.html#SourceFile">Source<EFBFBD>File:</a></th><td>mod_version.c</td></tr>
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<tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in version 2.0.56 and later</td></tr></table>
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<h3>Summary</h3>
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<p>This module is designed for the use in test suites and large
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networks which have to deal with different httpd versions and
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different configurations. It provides a new container -- <code class="directive"><a href="#ifversion"><IfVersion></a></code>, which
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allows a flexible version checking including numeric comparisons and
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regular expressions.</p>
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<div class="example"><h3>Examples</h3><p><code>
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<IfVersion 2.1.0><br />
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<span class="indent">
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# current httpd version is exactly 2.1.0<br />
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</span>
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</IfVersion><br />
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<br />
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<IfVersion >= 2.2><br />
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<span class="indent">
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# use really new features :-)<br />
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</span>
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</IfVersion>
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</code></p></div>
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<p>See below for further possibilities.</p>
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</div>
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<div id="quickview"><h3 class="directives">Directives</h3>
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<ul id="toc">
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<li><img alt="" src="../images/down.gif" /> <a href="#ifversion"><IfVersion></a></li>
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</ul>
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</div>
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<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="directive-section"><h2><a name="IfVersion" id="IfVersion"><IfVersion></a> <a name="ifversion" id="ifversion">Directive</a></h2>
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<table class="directive">
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<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>contains version dependent configuration</td></tr>
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<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code><IfVersion [[!]<var>operator</var>] <var>version</var>> ...
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</IfVersion></code></td></tr>
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<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
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<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>All</td></tr>
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<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
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<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_version</td></tr>
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</table>
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<p>The <code class="directive"><IfVersion></code> section encloses
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configuration directives which are executed only if the
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<code class="program"><a href="../programs/httpd.html">httpd</a></code> version
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matches the desired criteria. For normal (numeric) comparisons the
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<var>version</var> argument has the format
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<code><var>major</var>[.<var>minor</var>[.<var>patch</var>]]</code>, e.g.
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<code>2.1.0</code> or <code>2.2</code>. <var>minor</var> and
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<var>patch</var> are optional. If these numbers are omitted, they are
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assumed to be zero. The following numerical <var>operator</var>s are
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possible:</p>
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<table class="bordered"><tr class="header"><th><var>operator</var></th><th>description</th></tr>
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<tr><td><code>=</code> or <code>==</code></td>
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<td>httpd version is equal</td></tr>
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<tr class="odd"><td><code>></code></td>
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<td>httpd version is greater than</td></tr>
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<tr><td><code>>=</code></td>
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<td>httpd version is greater or equal</td></tr>
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<tr class="odd"><td><code><</code></td>
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<td>httpd version is less than</td></tr>
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<tr><td><code><=</code></td>
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<td>httpd version is less or equal</td></tr>
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</table>
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<div class="example"><h3>Example</h3><p><code>
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<IfVersion >= 2.1><br />
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<span class="indent">
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# this happens only in versions greater or<br />
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# equal 2.1.0.<br />
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</span>
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</IfVersion>
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</code></p></div>
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<p>Besides the numerical comparison it is possible to match a
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<a class="glossarylink" href="../glossary.html#regex" title="see glossary">regular expression</a>
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against the httpd version. There are two ways to write it:</p>
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<table class="bordered"><tr class="header"><th><var>operator</var></th><th>description</th></tr>
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<tr><td><code>=</code> or <code>==</code></td>
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<td><var>version</var> has the form
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<code>/<var>regex</var>/</code></td></tr>
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<tr class="odd"><td><code>~</code></td>
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<td><var>version</var> has the form
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<code><var>regex</var></code></td></tr>
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</table>
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<div class="example"><h3>Example</h3><p><code>
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<IfVersion = /^2.1.[01234]$/><br />
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<span class="indent">
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# e.g. workaround for buggy versions
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</span>
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</IfVersion>
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</code></p></div>
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<p>In order to reverse the meaning, all operators can be preceded by an
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exclamation mark (<code>!</code>):</p>
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<div class="example"><p><code>
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<IfVersion !~ ^2.1.[01234]$><br />
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<span class="indent">
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# not for those versions<br />
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</span>
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</IfVersion>
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</code></p></div>
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<p>If the <var>operator</var> is omitted, it is assumed to be
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<code>=</code>.</p>
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</div>
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</div>
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<div class="bottomlang">
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<p><span>Available Languages: </span><a href="../en/mod/mod_version.html" title="English"> en </a> |
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<a href="../ja/mod/mod_version.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
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<a href="../ko/mod/mod_version.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
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</div><div id="footer">
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<p class="apache">Copyright 2006 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
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<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div>
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</body></html> |