Hi all, I need to replace all instances of {{ and {} in a string with {empty{ and {empty}.
I tried:
    $foo =~ s/\{\{/\{empty\{/g;  #to do {{
    $foo =~ s/\{\}/\{empty\}/g; #to do {}

But on something like this:
    $foo = "{john{david{mary{{{{martin}"
It only replaces {{ once. So I get the following:
"{john{david{mary{empty{{{martin}" instead of "{john{david{mary{empty{empty{empty{martin}"

Now I've reworked these to lines to the following: 
while ($line =~ /\{\{/|/\{\}/){
    $line =~ s/\{\{/\{NA\{/;
    $line =~ s /\{\}/\{NA\}/;
};

[download]
Everything works fine, but does anyone know if there is a more efficient (less code) way of achieving the proper result? Thanks for your time.

In reply to Help with Substitution by La12

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