On Aug 3, 2005, at 10:01 AM, Louis Pouzin wrote:
To avoid cluttering scripts with intricate expressions I tried
references,
with mixed results. e.g. instead of:
delete $H{one}{two}{three}[0]{four} if exists
$H{one}{two}{three}[0]{four};
I'd prefer to write:
$ref = \$H{one}{two}{three}[0]{four};
delete $$ref if exists $$ref; # or somesuch.
While I could get each, keys, and values, out of references, I haven't
figured
out a working syntax for exists, delete, and growing hashes.
Perhaps someone could suggest a right way. Thanks.
my $ref = \$H{one}{two}{three}[0];
# Either of these should work
delete %$ref{four} if exists %$ref{four};
delete $ref->{four} if exists $ref->{four};
But there may be a clearer way to design the code in the first place.
Josh
--
Joshua Juran
Metamage Software Creations - Mac Software and Consulting
http://www.metamage.com/
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