Re^4: regex, find words that occur more than once.

[parv]

*ugh* Never mind the below as I forgot completely that regex was already accounting for the repeated words.

OP wanted to know ...

words that occur more than once

So without a counter as you state ...

... For purposes of answering the question "Has this word repeated" $words{$1} = undef; works just as well and the following increment is not required.

... I fail to see how one can find if a word appears more than once. The best one could know is if a word appears at all.