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<div id="page-content"><div id="preamble"><h1>Apache模块 mod_charset_lite</h1>
<table border="1" cellpadding="0" cellspacing="0" bordercolor="#AAAAAA" class="module">
<tr><th><a href="module-dict.html#Description">说明</a></th><td>允许对页面进行字符集转换</td></tr>
<tr><th><a href="module-dict.html#Status">状态</a></th><td>实验(X)</td></tr>
<tr><th><a href="module-dict.html#ModuleIdentifier">模块名</a></th><td>charset_lite_module</td></tr>
<tr><th><a href="module-dict.html#SourceFile">源文件</a></th><td>mod_charset_lite.c</td></tr>
</table>
<h3>概述</h3>
<p>This is an <strong>experimental</strong> module and should
be used with care. Experiment with your
<code class="module"><a href="../mod/mod_charset_lite.html">mod_charset_lite</a></code> configuration to ensure that it
performs the desired function.</p>
<p><code class="module"><a href="../mod/mod_charset_lite.html">mod_charset_lite</a></code> allows the administrator to
specify the source character set of objects as well as the
character set they should be translated into before sending to the
client. <code class="module"><a href="../mod/mod_charset_lite.html">mod_charset_lite</a></code> does not translate the
data itself but instead tells Apache what translation to
perform. <code class="module"><a href="../mod/mod_charset_lite.html">mod_charset_lite</a></code> is applicable to EBCDIC
and ASCII host environments. In an EBCDIC environment, Apache
normally translates text content from the code page of the Apache
process locale to ISO-8859-1. <code class="module"><a href="../mod/mod_charset_lite.html">mod_charset_lite</a></code>
can be used to specify that a different translation is to be
performed. In an ASCII environment, Apache normally performs no
translation, so <code class="module"><a href="../mod/mod_charset_lite.html">mod_charset_lite</a></code> is needed in
order for any translation to take place.</p>
<p>This module provides a small subset of configuration
mechanisms implemented by Russian Apache and its associated
<code>mod_charset</code>.</p>
</div>
<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="section">
<h2><a name="problems" id="problems">Common Problems</a></h2>
<h3>Invalid character set names</h3>
<p>The character set name parameters of <code class="directive"><a href="#charsetsourceenc">CharsetSourceEnc</a></code>和<code class="directive"><a href="#charsetdefault">CharsetDefault</a></code>
must be acceptable to the translation mechanism used by
<a class="glossarylink" href="../glossary.html#apr" title="see glossary">APR</a> on the system where
<code class="module"><a href="../mod/mod_charset_lite.html">mod_charset_lite</a></code> is deployed. These character
set names are not standardized and are usually not the same as
the corresponding values used in http headers. Currently, APR
can only use iconv(3), so you can easily test your character set
names using the iconv(1) program, as follows:</p>
<div class="example"><p><code>
iconv -f charsetsourceenc-value -t charsetdefault-value
</code></p></div>
<h3>Mismatch between character set of content and translation
rules</h3>
<p>If the translation rules don't make sense for the content,
translation can fail in various ways, including:</p>
<ul>
<li>The translation mechanism may return a bad return code,
and the connection will be aborted.</li>
<li>The translation mechanism may silently place special
characters (e.g., question marks) in the output buffer when
it cannot translate the input buffer.</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="CharsetDefault" id="CharsetDefault">CharsetDefault</a> <a name="charsetdefault" id="charsetdefault">指令</a></h2>
<table border="1" cellpadding="0" cellspacing="0" bordercolor="#AAAAAA" class="directive">
<tr><th><a href="directive-dict.html#Description">说明</a></th><td>Charset to translate into</td></tr>
<tr><th><a href="directive-dict.html#Syntax">语法</a></th><td><code>CharsetDefault <var>charset</var></code></td></tr>
<tr><th><a href="directive-dict.html#Context">作用域</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Override">覆盖项</a></th><td>FileInfo</td></tr>
<tr><th><a href="directive-dict.html#Status">状态</a></th><td>实验(X)</td></tr>
<tr><th><a href="directive-dict.html#Module">模块</a></th><td>mod_charset_lite</td></tr>
</table>
<p><code class="directive">CharsetDefault</code> directive specifies the
charset that content in the associated container should be
translated to.</p>
<p>The value of the <var>charset</var> argument must be accepted
as a valid character set name by the character set support in
<a class="glossarylink" href="../glossary.html#apr" title="see glossary">APR</a>. Generally, this means that it must be
supported by iconv.</p>
<div class="example"><h3>示例</h3><p><code>
<Directory /export/home/trawick/apacheinst/htdocs/convert><br />
<span class="indent">
CharsetSourceEnc UTF-16BE<br />
CharsetDefault ISO-8859-1<br />
</span>
</Directory>
</code></p></div>
</div>
<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="directive-section"><h2><a name="CharsetOptions" id="CharsetOptions">CharsetOptions</a> <a name="charsetoptions" id="charsetoptions">指令</a></h2>
<table border="1" cellpadding="0" cellspacing="0" bordercolor="#AAAAAA" class="directive">
<tr><th><a href="directive-dict.html#Description">说明</a></th><td>Configures charset translation behavior</td></tr>
<tr><th><a href="directive-dict.html#Syntax">语法</a></th><td><code>CharsetOptions <var>option</var> [<var>option</var>] ...</code></td></tr>
<tr><th><a href="directive-dict.html#Default">默认值</a></th><td><code>CharsetOptions DebugLevel=0 NoImplicitAdd</code></td></tr>
<tr><th><a href="directive-dict.html#Context">作用域</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Override">覆盖项</a></th><td>FileInfo</td></tr>
<tr><th><a href="directive-dict.html#Status">状态</a></th><td>实验(X)</td></tr>
<tr><th><a href="directive-dict.html#Module">模块</a></th><td>mod_charset_lite</td></tr>
</table>
<p><code class="directive">CharsetOptions</code> directive configures certain
behaviors of <code class="module"><a href="../mod/mod_charset_lite.html">mod_charset_lite</a></code>. <var>Option</var> can
be one of</p>
<dl>
<dt><code>DebugLevel=<var>n</var></code></dt>
<dd>The <code>DebugLevel</code> keyword allows you to specify
the level of debug messages generated by
<code class="module"><a href="../mod/mod_charset_lite.html">mod_charset_lite</a></code>. By default, no messages are
generated. This is equivalent to <code>DebugLevel=0</code>.
With higher numbers, more debug messages are generated, and
server performance will be degraded. The actual meanings of
the numeric values are described with the definitions of the
DBGLVL_ constants near the beginning of
<code>mod_charset_lite.c</code>.</dd>
<dt><code>ImplicitAdd | NoImplicitAdd</code></dt>
<dd>The <code>ImplicitAdd</code> keyword specifies that
<code class="module"><a href="../mod/mod_charset_lite.html">mod_charset_lite</a></code> should implicitly insert its
filter when the configuration specifies that the character
set of content should be translated. If the filter chain is
explicitly configured using the <code class="directive"><a href="../mod/mod_mime.html#addoutputfilter">AddOutputFilter</a></code> directive, <code>NoImplicitAdd</code>
should be specified so that <code class="module"><a href="../mod/mod_charset_lite.html">mod_charset_lite</a></code>
doesn't add its filter.</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="CharsetSourceEnc" id="CharsetSourceEnc">CharsetSourceEnc</a> <a name="charsetsourceenc" id="charsetsourceenc">指令</a></h2>
<table border="1" cellpadding="0" cellspacing="0" bordercolor="#AAAAAA" class="directive">
<tr><th><a href="directive-dict.html#Description">说明</a></th><td>Source charset of files</td></tr>
<tr><th><a href="directive-dict.html#Syntax">语法</a></th><td><code>CharsetSourceEnc <var>charset</var></code></td></tr>
<tr><th><a href="directive-dict.html#Context">作用域</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Override">覆盖项</a></th><td>FileInfo</td></tr>
<tr><th><a href="directive-dict.html#Status">状态</a></th><td>实验(X)</td></tr>
<tr><th><a href="directive-dict.html#Module">模块</a></th><td>mod_charset_lite</td></tr>
</table>
<p><code class="directive">CharsetSourceEnc</code> directive specifies the
source charset of files in the associated container.</p>
<p>The value of the <var>charset</var> argument must be accepted
as a valid character set name by the character set support in
<a class="glossarylink" href="../glossary.html#apr" title="see glossary">APR</a>. Generally, this means that it must be
supported by iconv.</p>
<div class="example"><h3>示例</h3><p><code>
<Directory /export/home/trawick/apacheinst/htdocs/convert><br />
<span class="indent">
CharsetSourceEnc UTF-16BE<br />
CharsetDefault ISO-8859-1<br />
</span>
</Directory>
</code></p></div>
<p>The character set names in this example work with the iconv
translation support in Solaris 8.</p>
</div>
</div>
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