Re: can understand one line of code

Break it down:

grep( expression, @{ ... } )
The expression s#$#$RegObj->{DELIM}#
start with 's', so it is a substitution.
The #s are delimiters so the two sides are: $ and $RegObj->{DELIM}
So it is substituting the module defined delimiter for ~~any '$'s~~ every end of line.
The array: @{ $RegObj->{MEMBERS}= [ @{$RegObj->{SUBKEYS}} ] }
Contains an assignment: $RegObj->{MEMBERS}= [ @{$RegObj->{SUBKEYS}} ]
It copies the array of subkeys : @{ $RegObj->{SUBKEYS} } into an anonymous array [ ... ]
And assigns its reference to $RegObj->{MEMBERS} = ...
Then it dereferences that to supply the subkeys to grep.

Thus, that one line is equivalent to:

my @temp = @{ $RegObj->{SUBKEYS} };
$RegObj->{MEMBERS} =  \@temp;
grep s[$][$RegObj->{DELIM}], @temp;
[download]

Without the need for @temp; but less efficient.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'

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