On Fri, Mar 07, 2008 at 01:54:24PM +0000, Alastair Douglas wrote:
> Does seem slightly mucky, but it does do the job. Thanks. I take it
> this is expected behaviour then? And it does lead me to wonder quite
> how it works if an empty list works but an empty scalar doesn't ...
Replace "an empty list" with "an empty list of key/value pairs", and "an empty
scalar" (no such thing, btw) with "a single key with an undefined value", and
it should be clearer.
<%args> must work this way, because otherwise this would never work:
<%args>
$foo => 17
</%args>
if (defined $foo) {
# do some foo stuff
}
# elsewhere
# does some foo stuff
<& mycomp, foo => 0 &>
# doesn't do some foo stuff
<& mycomp, foo => undef &>
hdp.
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