sub print
{
    print $value unless $value eq '-';
}

[download]
...

Incidentally, why does this  print sub [not] simply call itself recursively??

Its a namespace problem (feature? artifact?). Your new  print is defined in  main and the built-in  print is defined in  CORE and the  CORE namespace has search precedence. Try the following: 

>perl -wMstrict -le
"sub print { CORE::print('foo') }
 ::print;
"
foo

>perl -wMstrict -le
"sub print { ::print('foo') }
 ::print;
"
Deep recursion on subroutine "main::print" at -e line 1.
Terminating on signal SIGINT(2)

[download]

In reply to Re^2: Entry Widget - validatecommand by AnomalousMonk
in thread Entry Widget - validatecommand by shortyfw06

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