I tried to do it with ref, but than the only solution I can think of is:
if ( ref($a) && ref($a) !~ /HASH|ARRAY/ ) {
    $a->blabla(...) ;
}

[download]
According to the answers to this post I assume this is the answer ?!

Thanks
Luca

In reply to Re^2: How to tell if a variable is blessed ? by jeanluca
in thread How to tell if a variable is blessed ? by jeanluca

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