2.30. Removing Duplicate Characters
Runs of duplicate characters may be removed using the squeeze method:
s1 = "bookkeeper" s2 = s1.squeeze # "bokeper" s3 = "Hello..." s4 = s3.squeeze # "Helo." If a parameter is specified, only those characters will be squeezed. s5 = s3.squeeze(".") # "Hello."
This parameter follows the same rules as the one for the count method (see the section 2.28, "Counting Characters in Strings" earlier in this chapter); that is, it understands the hyphen and the caret.
There is also a squeeze! method.