I've got a simple script which finds words matching a regex in a large list.
There can be a large number of matches, so I wanted to write something like when you do "ls | more" and you get the output in chunks of 20 or so, hitting enter for the next chunk.
My code is a bit of a hack, with "if $x < $#list && $x+20 >= $#list"-type code everywhere. Please don't make me show it to you. It works anyway.
My question is more of a golf one, "what's the best way to work through an array over 20 items long in chunks of 20?"
I was trying to do something like this:
while(@array){
print @array[0 .. 20];
delete @array[0 .. 20];
}
But that doesn't work for various reasons which I'm sure are obvious to most monks (stop laughing!).
So, without the use of termporary vars to progressively get 0 .. 19, then 20 .. 29 and so on, how would you do it?
($_='kkvvttuubbooppuuiiffssqqffssmmiibbddllffss')
=~y~b-v~a-z~s; print
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