That was actualy a bit of fun there. Not sure how you wanted to handle cleaning up the spaces but here is my go at it. I used a while loop with a regex and the /g modifier. The regex is /(.{10,}?\b)/gThat should be read as find 10 or more occurances of any character followed by a word break ( you could change this to a space or \s, however it suits you, this just works pretty well). Here is the full bit, you would have to change the printing to concating into a new string but thats no challenge.

1234567890123456789
this is just
 a sample
of a string
, there is
 nothing really
 important
 in the scalar
, just a lot
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