mod_include.html.en

最新apache的源代码

      implemented by the <a href="http://www.pcre.org">PCRE</a> engine and
      have the same syntax as those in <a href="http://www.perl.com">perl
      5</a>.</p>

      <p>If you are matching positive (<code>=</code>), you can capture
      grouped parts of the regular expression. The captured parts are
      stored in the special variables <code>$1</code> ..
      <code>$9</code>.</p>

      <div class="example"><h3>Example</h3><p><code>
        &lt;!--#if expr="$QUERY_STRING = /^sid=([a-zA-Z0-9]+)/" --&gt;<br />
        <span class="indent">
          &lt;!--#set var="session" value="$1" --&gt;<br />
        </span>
        &lt;!--#endif --&gt;
      </code></p></div>
      </dd>

      <dt><code><var>string1</var> &lt; <var>string2</var><br />
       <var>string1</var> &lt;= <var>string2</var><br />
       <var>string1</var> &gt; <var>string2</var><br />
       <var>string1</var> &gt;= <var>string2</var></code></dt>

      <dd>Compare <var>string1</var> with <var>string2</var>. Note, that
      strings are compared <em>literally</em> (using
      <code>strcmp(3)</code>). Therefore the string "100" is less than
      "20".</dd>

      <dt><code>( <var>test_condition</var> )</code></dt>
      <dd>true if <var>test_condition</var> is true</dd>

      <dt><code>! <var>test_condition</var></code></dt>
      <dd>true if <var>test_condition</var> is false</dd>

      <dt><code><var>test_condition1</var> &amp;&amp;
        <var>test_condition2</var></code></dt>
      <dd>true if both <var>test_condition1</var> and
      <var>test_condition2</var> are true</dd>

      <dt><code><var>test_condition1</var> ||
        <var>test_condition2</var></code></dt>
      <dd>true if either <var>test_condition1</var> or
      <var>test_condition2</var> is true</dd>
    </dl>

    <p>"<code>=</code>" and "<code>!=</code>" bind more tightly than
    "<code>&amp;&amp;</code>" and "<code>||</code>". "<code>!</code>" binds
    most tightly. Thus, the following are equivalent:</p>

    <div class="example"><p><code>
      &lt;!--#if expr="$a = test1 &amp;&amp; $b = test2" --&gt;<br />
      &lt;!--#if expr="($a = test1) &amp;&amp; ($b = test2)" --&gt;
    </code></p></div>

    <p>The boolean operators <code>&amp;&amp;</code> and <code>||</code>
    share the same priority. So if you want to bind such an operator more
    tightly, you should use parentheses.</p>

    <p>Anything that's not recognized as a variable or an operator
    is treated as a string. Strings can also be quoted:
    <code>'string'</code>. Unquoted strings can't contain whitespace
    (blanks and tabs) because it is used to separate tokens such as
    variables. If multiple strings are found in a row, they are
    concatenated using blanks. So,</p>

    <div class="example"><p><code><var>string1</var>&nbsp;&nbsp;&nbsp;&nbsp;<var>string2</var></code> results in <code><var>string1</var>&nbsp;<var>string2</var></code><br />
      <br />
      and<br />
      <br />
      <code>'<var>string1</var>&nbsp;&nbsp;&nbsp;&nbsp;<var>string2</var>'</code> results in <code><var>string1</var>&nbsp;&nbsp;&nbsp;&nbsp;<var>string2</var></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="SSIEndTag" id="SSIEndTag">SSIEndTag</a> <a name="ssiendtag" id="ssiendtag">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>String that ends an include element</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>SSIEndTag <var>tag</var></code></td></tr>
<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>SSIEndTag "--&gt;"</code></td></tr>
<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_include</td></tr>
<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in version 2.0.30 and later.</td></tr>
</table>
    <p>This directive changes the string that <code class="module"><a href="../mod/mod_include.html">mod_include</a></code>
    looks for to mark the end of an include element.</p>

    <div class="example"><h3>Example</h3><p><code>
      SSIEndTag "%&gt;"
    </code></p></div>


<h3>See also</h3>
<ul>
<li><code class="directive"><a href="#ssistarttag">SSIStartTag</a></code></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="SSIErrorMsg" id="SSIErrorMsg">SSIErrorMsg</a> <a name="ssierrormsg" id="ssierrormsg">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Error message displayed when there is an SSI
error</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>SSIErrorMsg <var>message</var></code></td></tr>
<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>SSIErrorMsg "[an error occurred while processing this
directive]"</code></td></tr>
<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>All</td></tr>
<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_include</td></tr>
<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in version 2.0.30 and later.</td></tr>
</table>
    <p>The <code class="directive">SSIErrorMsg</code> directive changes the error
    message displayed when <code class="module"><a href="../mod/mod_include.html">mod_include</a></code> encounters an
    error. For production servers you may consider changing the default
    error message to <code>"&lt;!-- Error --&gt;"</code> so that
    the message is not presented to the user.</p>

    <p>This directive has the same effect as the <code>&lt;!--#config
    errmsg=<var>message</var> --&gt;</code> element.</p>

    <div class="example"><h3>Example</h3><p><code>
      SSIErrorMsg "&lt;!-- Error --&gt;"
    </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="SSIStartTag" id="SSIStartTag">SSIStartTag</a> <a name="ssistarttag" id="ssistarttag">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>String that starts an include element</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>SSIStartTag <var>tag</var></code></td></tr>
<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>SSIStartTag "&lt;!--#"</code></td></tr>
<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_include</td></tr>
<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in version 2.0.30 and later.</td></tr>
</table>
    <p>This directive changes the string that <code class="module"><a href="../mod/mod_include.html">mod_include</a></code>
    looks for to mark an include element to process.</p>

    <p>You may want to use this option if you have 2 servers parsing the
    output of a file each processing different commands (possibly at
    different times).</p> 

    <div class="example"><h3>Example</h3><p><code>
      SSIStartTag "&lt;%"<br />
      SSIEndTag   "%&gt;"
    </code></p></div>

    <p>The example given above, which also specifies a matching
    <code class="directive"><a href="#ssiendtag">SSIEndTag</a></code>, will 
    allow you to use SSI directives as shown in the example 
    below:</p>

    <div class="example"><h3>SSI directives with alternate start and end tags</h3><p><code>
      &lt;%printenv %&gt;
    </code></p></div>

<h3>See also</h3>
<ul>
<li><code class="directive"><a href="#ssiendtag">SSIEndTag</a></code></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="SSITimeFormat" id="SSITimeFormat">SSITimeFormat</a> <a name="ssitimeformat" id="ssitimeformat">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Configures the format in which date strings are
displayed</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>SSITimeFormat <var>formatstring</var></code></td></tr>
<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>SSITimeFormat "%A, %d-%b-%Y %H:%M:%S %Z"</code></td></tr>
<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>All</td></tr>
<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_include</td></tr>
<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in version 2.0.30 and later.</td></tr>
</table>
<p>This directive changes the format in which date strings are displayed 
    when echoing <code>DATE</code> environment variables. The
    <var>formatstring</var> is as in <code>strftime(3)</code> from the
    C standard library.</p>

    <p>This directive has the same effect as the <code>&lt;!--#config
    timefmt=<var>formatstring</var> --&gt;</code> element.</p>

    <div class="example"><h3>Example</h3><p><code>
      SSITimeFormat "%R, %B %d, %Y"
    </code></p></div>

    <p>The above directive would cause times to be displayed in the
    format "22:26, June 14, 2002".</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="SSIUndefinedEcho" id="SSIUndefinedEcho">SSIUndefinedEcho</a> <a name="ssiundefinedecho" id="ssiundefinedecho">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>String displayed when an unset variable is echoed</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>SSIUndefinedEcho <var>string</var></code></td></tr>
<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>SSIUndefinedEcho "(none)"</code></td></tr>
<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host</td></tr>
<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_include</td></tr>
<tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in version 2.0.34 and later.</td></tr>
</table>
    <p>This directive changes the string that <code class="module"><a href="../mod/mod_include.html">mod_include</a></code>
    displays when a variable is not set and "echoed".</p>

    <div class="example"><h3>Example</h3><p><code>
      SSIUndefinedEcho "&lt;!-- undef --&gt;"
    </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="XBitHack" id="XBitHack">XBitHack</a> <a name="xbithack" id="xbithack">Directive</a></h2>
<table class="directive">
<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Parse SSI directives in files with the execute bit
set</td></tr>
<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>XBitHack on|off|full</code></td></tr>
<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>XBitHack off</code></td></tr>
<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Options</td></tr>
<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_include</td></tr>
</table>
    <p>The <code class="directive">XBitHack</code> directive controls the parsing
    of ordinary html documents. This directive only affects files associated
    with the MIME type <code>text/html</code>. <code class="directive">XBitHack</code> can take on the following values:</p>

    <dl>
      <dt><code>off</code></dt>
      <dd>No special treatment of executable files.</dd>

      <dt><code>on</code></dt>
      <dd>Any <code>text/html</code> file that has the user-execute bit
      set will be treated as a server-parsed html document.</dd>

      <dt><code>full</code></dt>
      <dd>As for <code>on</code> but also test the group-execute bit.
      If it is set, then set the <code>Last-modified</code> date of the
      returned file to be the last modified time of the file. If
      it is not set, then no last-modified date is sent. Setting
      this bit allows clients and proxies to cache the result of
      the request. 

      <div class="note"><h3>Note</h3>
      <p>You would not want to use the full option, unless you assure the
      group-execute bit is unset for every SSI script which might <code>#include</code> a CGI or otherwise produces different output on
      each hit (or could potentially change on subsequent requests).</p>
      </div>
      </dd>
    </dl>

    
</div>
</div>
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