[Templates] how does META work?

[Randal L. Schwartz]

>>>>> "Mark" == Mark Anderson <mda@discerning.com> writes:

Mark> So how does META work exactly?

META values are pulled out when the template is compiled, but
before it is executed.

Mark> Is it only constants that can be used for values?

Constant expressions seem to work, if I recall.  But nothing
needing variables.   It can't.  There are no variables at
that point. :)

It's like the BEGIN {} block of Template. :)

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