mod_sed.html.en 11.9 KB
Newer Older
powelld's avatar
powelld committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head>
<meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type" />
<!--
        XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
              This file is generated from xml source: DO NOT EDIT
        XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
      -->
<title>mod_sed - Apache HTTP Server Version 2.4</title>
<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="../style/css/prettify.css" />
<script src="../style/scripts/prettify.min.js" type="text/javascript">
</script>

<link href="../images/favicon.ico" rel="shortcut icon" /></head>
<body>
<div id="page-header">
<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
<p class="apache">Apache HTTP Server Version 2.4</p>
<img alt="" src="../images/feather.png" /></div>
<div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div>
<div id="path">
<a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs/">Documentation</a> &gt; <a href="../">Version 2.4</a> &gt; <a href="./">Modules</a></div>
<div id="page-content">
<div id="preamble"><h1>Apache Module mod_sed</h1>
<div class="toplang">
<p><span>Available Languages: </span><a href="../en/mod/mod_sed.html" title="English">&nbsp;en&nbsp;</a> |
<a href="../fr/mod/mod_sed.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a></p>
</div>
<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Filter Input (request) and Output (response) content using <code>sed</code> syntax</td></tr>
<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>sed_module</td></tr>
<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_sed.c sed0.c sed1.c regexp.c regexp.h sed.h</td></tr>
<tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.3 and later</td></tr></table>
<h3>Summary</h3>

<p>
<code class="module"><a href="../mod/mod_sed.html">mod_sed</a></code> is an in-process content filter. The <code class="module"><a href="../mod/mod_sed.html">mod_sed</a></code> filter implements the <code>sed</code> editing
commands implemented by the Solaris 10 <code>sed</code>
program as described in the <a href="http://www.gnu.org/software/sed/manual/sed.txt">manual
page</a>. However, unlike <code>sed</code>, <code class="module"><a href="../mod/mod_sed.html">mod_sed</a></code> doesn't take data from
standard
input. Instead, the filter acts on the entity data sent between client and
server. <code class="module"><a href="../mod/mod_sed.html">mod_sed</a></code> can be used as an input or output filter. <code class="module"><a href="../mod/mod_sed.html">mod_sed</a></code> is a
content filter, which means that it cannot be used to modify client or
server http headers.
</p>
<p>
The <code class="module"><a href="../mod/mod_sed.html">mod_sed</a></code> output filter accepts a chunk of data, executes the <code>sed</code> scripts on the data, and generates the output which is passed to the next filter in the chain.
</p>

<p>
The <code class="module"><a href="../mod/mod_sed.html">mod_sed</a></code> input filter reads the data from the next filter in the chain, executes the <code>sed</code> scripts, and returns the generated data to the caller filter in the filter chain.
</p>

<p>
Both the input and output filters only process the data if newline characters are seen in the content. At the end of the data, the rest of the data is treated as the last line.
</p>

<p>A tutorial article on <code class="module"><a href="../mod/mod_sed.html">mod_sed</a></code>, and why it is more powerful than simple
string or regular expression search and replace, is available <a href="https://blogs.oracle.com/basant/entry/using_mod_sed_to_filter">on
the author's blog</a>.</p>

</div>
<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3>Topics</h3>
<ul id="topics">
<li><img alt="" src="../images/down.gif" /> <a href="#sampleconf">Sample Configuration</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#sed_commands">Sed Commands</a></li>
</ul><h3 class="directives">Directives</h3>
<ul id="toc">
<li><img alt="" src="../images/down.gif" /> <a href="#inputsed">InputSed</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#outputsed">OutputSed</a></li>
</ul>
<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&amp;list_id=144532&amp;product=Apache%20httpd-2&amp;query_format=specific&amp;order=changeddate%20DESC%2Cpriority%2Cbug_severity&amp;component=mod_sed">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&amp;component=mod_sed">Report a bug</a></li></ul><h3>See also</h3>
<ul class="seealso">
<li><a href="#comments_section">Comments</a></li></ul></div>
<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="section">
<h2><a name="sampleconf" id="sampleconf">Sample Configuration</a></h2>
    <div class="example"><h3>Adding an output filter </h3><pre class="prettyprint lang-config"># In the following example, the sed filter will change the string
# "monday" to "MON" and the string "sunday" to SUN in html documents
# before sending to the client.
&lt;Directory "/var/www/docs/sed"&gt; 
    AddOutputFilter Sed html 
    OutputSed "s/monday/MON/g" 
    OutputSed "s/sunday/SUN/g" 
&lt;/Directory&gt;</pre>
</div>

    <div class="example"><h3>Adding an input filter </h3><pre class="prettyprint lang-config"># In the following example, the sed filter will change the string
# "monday" to "MON" and the string "sunday" to SUN in the POST data
# sent to PHP.
&lt;Directory "/var/www/docs/sed"&gt; 
    AddInputFilter Sed php 
    InputSed "s/monday/MON/g" 
    InputSed "s/sunday/SUN/g" 
&lt;/Directory&gt;</pre>
</div>
</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="section">
<h2><a name="sed_commands" id="sed_commands">Sed Commands</a></h2>
    <p>
    Complete details of the <code>sed</code> command can be found from the
   <a href="http://www.gnu.org/software/sed/manual/sed.txt">sed manual
page</a>.
    </p>
    <dl>
        <dt><code>b</code></dt>
        <dd>Branch to the label specified (similar to goto).</dd>
        <dt><code>h</code></dt>
        <dd>Copy the current line to the hold buffer.</dd>
        <dt><code>H</code></dt>
        <dd>Append the current line to the hold buffer.</dd>
        <dt><code>g</code></dt>
        <dd>Copy the hold buffer to the current line.</dd>
        <dt><code>G</code></dt>
        <dd>Append the hold buffer to the current line.</dd>
        <dt><code>x</code></dt>
        <dd>Swap the contents of the hold buffer and the current line.</dd>
    </dl>
</div>
<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="directive-section"><h2><a name="InputSed" id="InputSed">InputSed</a> <a name="inputsed" id="inputsed">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sed command to filter request data (typically <code>POST</code> data)</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>InputSed <var>sed-command</var></code></td></tr>
<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_sed</td></tr>
</table>
    <p>The <code class="directive">InputSed</code> directive specifies the <code>sed</code> command
    to execute on the request data e.g., <code>POST</code> data.
    </p>

</div>
<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="directive-section"><h2><a name="OutputSed" id="OutputSed">OutputSed</a> <a name="outputsed" id="outputsed">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Sed command for filtering response content</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>OutputSed <var>sed-command</var></code></td></tr>
<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_sed</td></tr>
</table>
    <p>The <code class="directive">OutputSed</code> directive specifies the <code>sed</code>
    command to execute on the response.
    </p>

</div>
</div>
<div class="bottomlang">
<p><span>Available Languages: </span><a href="../en/mod/mod_sed.html" title="English">&nbsp;en&nbsp;</a> |
<a href="../fr/mod/mod_sed.html" hreflang="fr" rel="alternate" title="Français">&nbsp;fr&nbsp;</a></p>
</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&amp;A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed again by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Freenode, or sent to our <a href="http://httpd.apache.org/lists.html">mailing lists</a>.</div>
<script type="text/javascript"><!--//--><![CDATA[//><!--
var comments_shortname = 'httpd';
var comments_identifier = 'http://httpd.apache.org/docs/2.4/mod/mod_sed.html';
(function(w, d) {
    if (w.location.hostname.toLowerCase() == "httpd.apache.org") {
        d.write('<div id="comments_thread"><\/div>');
        var s = d.createElement('script');
        s.type = 'text/javascript';
        s.async = true;
        s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier;
        (d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s);
    }
    else { 
        d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>');
    }
})(window, document);
//--><!]]></script></div><div id="footer">
<p class="apache">Copyright 2017 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>
<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div><script type="text/javascript"><!--//--><![CDATA[//><!--
if (typeof(prettyPrint) !== 'undefined') {
    prettyPrint();
}
//--><!]]></script>
</body></html>