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Postings from February 2013
On Tue, Feb 19, 2013 at 10:37 PM, Rafael Garcia-Suarez <rgs@consttype.org>wrote:
> No, it's not dynamic scoping: (I specified "for a definition of
> scope..." because I'm aware of the weird lexical scoping rules applied
> there)
>
> ~ยง perl -E'sub foo { say $1 || "nothing" } { "foo" =~ /(.)/ } foo'
> nothing
>
That's outside of the dynamic scope, so as should be expected. Compare:
~$ perl -E'sub foo { say $1 || "nothing" } { "foo" =~ /(.)/; foo }'
f
This time the $1 is inside the dynamic scope of the bare block (and so
see the localized $1), but outside of the lexical scope (and so could not
have seen that $1, if it were lexically scoped).
Eirik
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