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<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.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 2.5</p>
-<img alt="" src="../images/feather.gif" /></div>
+<img alt="" src="../images/feather.png" /></div>
<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
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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 2.5</a> > <a href="./">Modules</a></div>
rest of the configuration file.</p>
</div>
-<div id="quickview"><h3 class="directives">Directives</h3>
+<div id="quickview"><h3>Topics</h3>
+<ul id="topics">
+<li><img alt="" src="../images/down.gif" /> <a href="#usage">Usage</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#tips">Tips</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#examples">Examples</a></li>
+</ul><h3 class="directives">Directives</h3>
<ul id="toc">
<li><img alt="" src="../images/down.gif" /> <a href="#macro"><Macro></a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#macroignorebadnesting">MacroIgnoreBadNesting</a></li>
+<li><img alt="" src="../images/down.gif" /> <a href="#macroignoreemptyargs">MacroIgnoreEmptyArgs</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#undefmacro">UndefMacro</a></li>
<li><img alt="" src="../images/down.gif" /> <a href="#use">Use</a></li>
</ul>
-<h3>Topics</h3>
-<ul id="topics">
-<li><img alt="" src="../images/down.gif" /> <a href="#usage">Usage</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#tips">Tips</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#examples">Examples</a></li>
-</ul><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="directive-section"><h2><a name="Macro" id="Macro"><Macro></a> <a name="macro" id="macro">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Define a configuration file macro</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>
-<Macro <var>name</var> [<var>par1</var> .. <var>parN</var>]>
-... </Macro></code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</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_macro</td></tr>
-</table>
- <p>The <code class="directive">Macro</code> directive controls the definition of
- a macro within the server runtime configuration files.
- The first argument is the name of the macro.
- Other arguments are parameters to the macro. It is good practice to prefix
- parameter names with any of '<code>$%@</code>', and not macro names
- with such characters.
- </p>
-
- <pre class="prettyprint lang-config"><Macro LocalAccessPolicy>
- Require ip 10.2.16.0/24
-</Macro>
-
-<Macro RestrictedAccessPolicy $ipnumbers>
- Require ip $ipnumbers
-</Macro></pre>
-
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="UndefMacro" id="UndefMacro">UndefMacro</a> <a name="undefmacro" id="undefmacro">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Undefine a macro</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>UndefMacro <var>name</var></code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</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_macro</td></tr>
-</table>
- <p>The <code class="directive">UndefMacro</code> directive undefines a macro
- which has been defined before hand.</p>
-
- <pre class="prettyprint lang-config">UndefMacro LocalAccessPolicy
-UndefMacro RestrictedAccessPolicy</pre>
-
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="Use" id="Use">Use</a> <a name="use" id="use">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Use a macro</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>Use <var>name</var> [<var>value1</var> ... <var>valueN</var>]
-</code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</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_macro</td></tr>
-</table>
- <p>The <code class="directive">Use</code> directive controls the use of a macro.
- The specified macro is expanded. It must be given the same number of
- arguments as in the macro definition. The provided values are
- associated to their corresponding initial parameters and are substituted
- before processing.</p>
-
- <pre class="prettyprint lang-config">Use LocalAccessPolicy
-...
-Use RestrictedAccessPolicy "192.54.172.0/24 192.54.148.0/24"</pre>
-
-
- <p>is equivalent, with the macros defined above, to:</p>
-
- <pre class="prettyprint lang-config">Require ip 10.2.16.0/24
-...
-Require ip 192.54.172.0/24 192.54.148.0/24</pre>
-
-
-</div>
+<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__&list_id=144532&product=Apache%20httpd-2&query_format=specific&order=changeddate%20DESC%2Cpriority%2Cbug_severity&component=mod_macro">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&component=mod_macro">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="usage" id="usage">Usage</a></h2>
-<p>Macros are defined using <code class="directive"><Macro></code> blocks, which contain the portion of
+<p>Macros are defined using <code class="directive"><a href="#macro"><Macro></a></code> blocks, which contain the portion of
your configuration that needs to be repeated, complete with variables
for those parts that will need to be substituted.</p>
-<p>For example, you might use a macro to define a <code class="directive"><VirtualHost></code> block, in order to define
+<p>For example, you might use a macro to define a <code class="directive"><a href="../mod/core.html#virtualhost"><VirtualHost></a></code> block, in order to define
multiple similar virtual hosts:</p>
<pre class="prettyprint lang-config"><Macro VHost $name $domain>
ServerName $domain
ServerAlias www.$domain
- DocumentRoot /var/www/vhosts/$name
- ErrorLog /var/log/httpd/$name.error_log
- CustomLog /var/log/httpd/$name.access_log combined
+ DocumentRoot "/var/www/vhosts/$name"
+ ErrorLog "/var/log/httpd/$name.error_log"
+ CustomLog "/var/log/httpd/$name.access_log" combined
</VirtualHost>
</Macro></pre>
UndefMacro VHost</pre>
-<p>At server startup time, each of these <code class="directive">Use</code>
+<p>At server startup time, each of these <code class="directive"><a href="#use">Use</a></code>
invocations would be expanded into a full virtualhost, as
-described by the <code class="directive">Macro</code> definition.</p>
+described by the <code class="directive"><a href="#macro"><Macro></a></code>
+definition.</p>
-<p>The <code class="directive">UndefMacro</code> directive is used so that later
-macros using the same variable names don't result in conflicting
-definitions.</p>
+<p>The <code class="directive"><a href="#undefmacro">UndefMacro</a></code> directive is
+used so that later macros using the same variable names don't result in
+conflicting definitions.</p>
<p>A more elaborate version of this example may be seen below in the
Examples section.</p>
<p>Parameter names should begin with a sigil such as <code>$</code>,
<code>%</code>, or <code>@</code>, so that they are clearly
identifiable, and also in order to help deal with interactions with
-other directives, such as the core <code class="directive"><a href="../mod/core.html#define">Define</a></code> directive. Failure to do so will
+other directives, such as the core <code class="directive"><a href="../mod/core.html#define">Define</a></code> directive. Failure to do so will
result in a warning. Nevertheless, you are encouraged to have a good
knowledge of your entire server configuration in order to avoid reusing
the same variables in different scopes, which can cause confusion.</p>
surround the parameter in braces, to avoid confusion:</p>
<pre class="prettyprint lang-config"><Macro DocRoot ${docroot}>
- DocumentRoot /var/www/${docroot}/htdocs
+ DocumentRoot "/var/www/${docroot}/htdocs"
</Macro></pre>
<VirtualHost *:$port>
ServerName $host
- DocumentRoot $dir
+ DocumentRoot "$dir"
# Public document root
- <Directory $dir>
+ <Directory "$dir">
Require all granted
</Directory>
# limit access to intranet subdir.
- <Directory $dir/intranet>
+ <Directory "$dir/intranet">
Require ip 10.0.0.0/8
</Directory>
</VirtualHost>
conflicts in variable names.</p>
<pre class="prettyprint lang-config"><Macro DirGroup $dir $group>
- <Directory $dir>
+ <Directory "$dir">
Require group $group
</Directory>
</Macro>
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="Macro" id="Macro"><Macro></a> <a name="macro" id="macro">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Define a configuration file macro</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>
+<Macro <var>name</var> [<var>par1</var> .. <var>parN</var>]>
+... </Macro></code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</td></tr>
+<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>All</td></tr>
+<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
+<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_macro</td></tr>
+</table>
+ <p>The <code class="directive"><Macro></code> directive controls the
+ definition of a macro within the server runtime configuration files.
+ The first argument is the name of the macro.
+ Other arguments are parameters to the macro. It is good practice to prefix
+ parameter names with any of '<code>$%@</code>', and not macro names
+ with such characters.
+ </p>
+
+ <pre class="prettyprint lang-config"><Macro LocalAccessPolicy>
+ Require ip 10.2.16.0/24
+</Macro>
+
+<Macro RestrictedAccessPolicy $ipnumbers>
+ Require ip $ipnumbers
+</Macro></pre>
+
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="MacroIgnoreBadNesting" id="MacroIgnoreBadNesting">MacroIgnoreBadNesting</a> <a name="macroignorebadnesting" id="macroignorebadnesting">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore warnings, and does not log, about bad nesting of Macros</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>MacroIgnoreBadNesting</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</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_macro</td></tr>
+</table>
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="MacroIgnoreEmptyArgs" id="MacroIgnoreEmptyArgs">MacroIgnoreEmptyArgs</a> <a name="macroignoreemptyargs" id="macroignoreemptyargs">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Ignore warnings, and does not log, about empty Macro argument(s)</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>MacroIgnoreEmptyArgs</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</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_macro</td></tr>
+</table>
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="UndefMacro" id="UndefMacro">UndefMacro</a> <a name="undefmacro" id="undefmacro">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Undefine a macro</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>UndefMacro <var>name</var></code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</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_macro</td></tr>
+</table>
+ <p>The <code class="directive">UndefMacro</code> directive undefines a macro
+ which has been defined before hand.</p>
+
+ <pre class="prettyprint lang-config">UndefMacro LocalAccessPolicy
+UndefMacro RestrictedAccessPolicy</pre>
+
+
+</div>
+<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
+<div class="directive-section"><h2><a name="Use" id="Use">Use</a> <a name="use" id="use">Directive</a></h2>
+<table class="directive">
+<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Use a macro</td></tr>
+<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>Use <var>name</var> [<var>value1</var> ... <var>valueN</var>]
+</code></td></tr>
+<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</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_macro</td></tr>
+</table>
+ <p>The <code class="directive">Use</code> directive controls the use of a macro.
+ The specified macro is expanded. It must be given the same number of
+ arguments as in the macro definition. The provided values are
+ associated to their corresponding initial parameters and are substituted
+ before processing.</p>
+
+ <pre class="prettyprint lang-config">Use LocalAccessPolicy
+...
+Use RestrictedAccessPolicy "192.54.172.0/24 192.54.148.0/24"</pre>
+
+
+ <p>is equivalent, with the macros defined above, to:</p>
+
+ <pre class="prettyprint lang-config">Require ip 10.2.16.0/24
+...
+Require ip 192.54.172.0/24 192.54.148.0/24</pre>
+
+
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-<p class="apache">Copyright 201
5 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="apache">Copyright 201
7 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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