I have a line of text that looks like this: 
 
ch i_DEL ts a k u_DEL s i_DEL #

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I for each letter marked by the _DEL suffix, I want to print two entries, one with just the vowel (not the _DEL tag) and the other as nothing (i.e., delete the vowel and the _DEL tag). I want an end result that looks like this: 
ch i ts a k u s i #
ch i ts a k u s #
ch i ts a k s #
ch i ts a k s i #
ch ts a k u s i #
ch ts a k u s #
ch ts a k s # 
ch ts a k s i #

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i.e., all possible variations. I have thought of a very convoluted way to do this, but I would like something nice and elegant - is there a way to make a regexp, perhaps?

In reply to Combinatorics in Perl by wouldbewarrior

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