How to nest variable/procedure calls?

[vuk]

\procedure dotwrap(str)
.<<str>>.
\end

\procedure slashwrap(str)
/<<str>>/
\end

<<dotwrap foo>>

<<slashwrap foo>>

<$vars my_var="foo">
    <!--
		I want to nest the procedures here, as in
    slashwrap(dotwrap(my_var))
    -->

    my_var = <<my_var>>

    dotwrap(my_var) = <$transclude $variable="dotwrap" str=<<my_var>> />

    slashwrap(dotwrap(my_var)) = <$transclude $variable="slashwrap" str='<$transclude $variable="dotwrap" str=<<my_var>> />
' />

</$vars>

this approach works, but as you can see, with each nest level, copypasted code piles up. Is there a better way?

[pmario]

That’s what we did before we had doc-macros.

The PRE element at the end shows the whole tiddler. It can also be converted to a template or show it inside a DETAILS element.

\procedure test()
some text
\end

`<<test>>` rendered as: <<test>>

<pre><$view/></pre>