Are you familiar with globs? Skip the next paragraph if you are and I will answer the question.

You are familiar with the concept that we can have $I, @I, %I, sub I {}, and a file handle called I? A glob ( indicated by the *I ) is a convenient way of referring to all of them at once.

Basically, the *I{HASH} construct means we are only referring to the HASH part if the glob. When the assignment is done ( *I = getSlashConf() ), we are certain that only the HASH portion of the glob will be reassigned. After the assignment, %I now refers to whatever getSlashConf returns and we can treat it like a normal hash, or in this case, a hash of hashes. It is a clever way of returning a reference without returning a reference.

If you are not familiar with globs, get yourself a copy of Conway's Object Oriented Perl, because he explains what globs are, how they work and what this kind of assignment is doing in a very clear and concise way.

Mik
Mik Firestone ( perlus bigotus maximus )

In reply to Re: I just can't figure this out... by mikfire
in thread I just can't figure this out... by azaidi

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