Re: [Webmacro-devel] #templet directive

[Keats <ke...@ea...>]

I've finally gotten back to work on the #templet an #eval directives.  I
thought I'd give an update and solicit some feedback.

I decided to separate the context from the "templet", so you have to supply
the context with the #eval (or use the current context).  This means that
the templet directive is now equivalent to "#setblock as macro".

Since a templet is just a macro, you can expand it using the current context
by just specifying the variable name.  E.g.,

## templet def
#templet $t {
   Some junk with variables like $x and $y
}
## expand templet with current context
$t

So I think I can simplify the #eval directive to just 2 optional parameters,
"copy context" and "with <map>".

So, the preferred usage would be something like:

## create a new context with the supplied map of variables
#eval $t using { "x" : "foo", "y" : 999 }

But you could also do:

## use copies of $x and $y from the current context
#eval $t copy context

or

## use a copy of $y from the current context and override $x
#eval $t copy context using { "x" : "foo" }

Any thoughts?

Keats