Removes a previously defined tag, container tag or define.
Attributes
- name
-
Undefine this define.
- tag
-
Undefine this tag.
- container
-
Undefine this container tag.
Example
<define container=h1>
<gtext><contents></gtext>
</define>
<h1>Hello</h1>
<undefine container=h1>
<h1>World</h1>
World
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