<refentry id="xexpr">

 <refmeta>

 <refentrytitle>xexpr</refentrytitle>

 <manvolnum>1</manvolnum>

 <refmiscinfo class="manual">User Commands</refmiscinfo>

 </refmeta>

 <refnamediv>

 <refname>xexpr</refname>

 <refpurpose>XEXPR Interpreter</refpurpose>

 </refnamediv>

 <refsynopsisdiv>

 <cmdsynopsis>

 <command>xexpr</command>

 <arg choice="opt" rep="repeat">OPTION</arg>

 <arg>script</arg>

 </cmdsynopsis>

 </refsynopsisdiv>

 <refsect1><title>Description</title>

 <para><command>xexpr</command> is an XEXPR interpreter. It loads and executes

 XEXPR programs.

 </para>

 </refsect1>

 <refsect1><title>Options</title>

 <variablelist>

 <varlistentry>

 <term><option>-h</option>, <option>--help</option></term>

 <listitem><para>

 print help and exit

 </para></listitem>

 </varlistentry>

 <varlistentry>

 <term><option>-d</option>, <option>--dump-tree</option></term>

 <listitem><para>

 Instead of executing the XEXPR program, dump the parsed tree after loading

 </para></listitem>

 </varlistentry>

 <varlistentry>

 <term><option>-D</option>, <option>--dump-result</option></term>

 <listitem><para>

 After executing the XEXPR program, dump the result

 </para></listitem>

 </varlistentry>

 <varlistentry>

 <term><option>-t</option>, <option>--test-result</option></term>

 <listitem><para>

 After executing the XEXPR program, test the result and exit 0 if it evaluates

 to <true/> and non-zero if it evaluates to <false/>

 </para></listitem>

 </varlistentry>

 <varlistentry>

 <term><option>-T=<replaceable>id</replaceable></option>, <option>--trace <replaceable>id</replaceable></option></term>

 <listitem><para>

 Adds <replaceable>id</replaceable> to the set of symbols to trace.

 When variables with the name of a traced symbol are created or changed,

 <command>xexpr</command> will output a suitable tracing message and a stack

 dump

 </para></listitem>

 </varlistentry>

 <varlistentry>

 <term><option>--xinclude</option></term>

 <listitem><para>

 Do XInclude processing

 </para></listitem>

 </varlistentry>

 <varlistentry>

 <term><option>--param <replaceable>name</replaceable>,<replaceable>number</replaceable></option></term>

 <listitem><para>

 Set a global XEXPR variable of the given <replaceable>name</replaceable> with a

 numeric value of <replaceable>number</replaceable>. A float or integer type

 will be selected automatically.

 </para></listitem>

 </varlistentry>

 <varlistentry>

 <term><option>--stringparam <replaceable>name</replaceable>,<replaceable>value</replaceable></option></term>

 <listitem><para>

 Set a global XEXPR variable of the given <replaceable>name</replaceable> with a

 string value of <replaceable>value</replaceable>.

 </para></listitem>

 </varlistentry>

 </variablelist>

 </refsect1>

 </refentry>