Sorry but some syntaxic piece of code are really obscur. i am not as comfortable as you with perl. do you mind giving me a short explanation on the elements hereunder?

sub perl_mouse {
    my %HoH = %{+shift}; # I know @_ to get the parameter but not this
+ one
}

$saw{lc,} # what is lc,?
[download]

As a general rule if you see a bareword like those, chances are that they may be built in functions. So, always as a general rule, you'll find that perl ('s excellent documentation) may already give you an answer; just check e.g. (in this case):

• perldoc -f shift
• perldoc -f li

But since there's a subtle issue involved here, please read also the following replies, including mine to Hue-Bond's.

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