define-macro: Define a macro

  Syntax

    'metal:define-macro' syntax::

      argument ::= Name

  Description

    The 'metal:define-macro' statement defines a macro. The macro is
    named by the statement expression, and is defined as the element
    and its sub-tree.

    In Zope, a macro definition is available as a sub-object of a
    template's 'macros' object. For example, to access a macro named
    'header' in a template named 'master.html', you could use the path
    expression 'master.html/macros/header'.

  Examples

    Simple macro definition::

      <p metal:define-macro="copyright">
        Copyright 2001, <em>Foobar</em> Inc.
      </p>

  See Also

    "metal:use-macro":metal-use-macro.stx

    "metal:define-slot":metal-define-slot.stx