Okay, here is one way to populate the hash:
#!/usr/bin/perl -w
use strict;
my %hash;
while( <> ) {
chomp $_;
my @trib= grep { "" ne $_ } split /(...)/, $_;
my $ref= \\%hash;
while( @trib ) {
$ref= \$$ref->{shift @trib};
}
$$ref++;
}
Note how I avoided having to save shift @trib
to index into the next subhash by keeping a reference to
the slot for the hash value instead of a reference to the
hash.
If that code makes sense to you right away, then you are
either sick, overlooking something, or do way too much work
with Perl references. (:
P.S. I was seriously disappointed that
my @trib= split /(?<=\G...)/, $_;
doesn't work because split doesn't set
pos($_) the way /(?<=\G...)/g
would.
-
tye
(but my friends call me "Tye")
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