<if defined></if>

Provided by module: Tags: RXML tags

Tests if a certain RXML define is defined by use of the <define> tag, and in that case tests its value. This is an Eval plugin.

Attributes

defined="define"

Choose what define to test.

The define should be provided as typename-of-define, i.e. the type and the name separated by a NUL (ASCII 0) character. Currently there are two alternatives:

tagname-of-define

ifname-of-define

   <define tag="hello-world">Hello world</define>
   <define container="say-hello">Hello, <contents/></define>
   <define if="person">Matt</define>

   <if defined="tag&#0;hello-world">
     <div><hello-world/>!!</div>
   </if>

   <if defined="tag&#0;say-hello">
     <div><say-hello>Matt</say-hello></div>
   </if>

   <if defined="if&#0;person">
     <div>
       <if person="Matt">Yes, it's Matt!</if>
       <else>No Matt</else>
    </div>
   </if>

   <if defined="tag&#0;non-defined-thing"><non-defined-thing/></if>
   <else><div>&lt;non-defined-thing/&gt; is not defined</div></else>

Hello world!!

Hello, Matt

Yes, it's Matt!

<non-defined-thing/> is not defined