I was working on something the other day where I had two levels of recursion, like this:
for(1 .. 10){
for(a .. c){
#do something
}
}
and then I realised I had to add another level so it was like this:
for( 1 .. 10 ){
for( a .. c ){
for( x .. z ){
#do something
}
}
}
and I started thinking, is it possible to write code in perl where you could recurse as many times as required? In other words, could you write a sub that would work like this:
do_my_recursion('1 .. 10');
# or
do_my_recursion('1 .. 10','a .. c');
# or
do_my_recursion('1 .. 10','a .. c','x .. y');
# and so on
and if so how?
I don't actually need the answer to this question in any way, I should say, I'm just wondering about it as a purely theoretical thing.
($_='kkvvttuubbooppuuiiffssqqffssmmiibbddllffss')
=~y~b-v~a-z~s; print
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