Ruby

Regrading String.strip (and lstrip, rstrip, and ! versions)

Some text data representations differentiate between what one might call vertical and horizontal white space, and the 'strip' methods currently strip both.

It would be helpful if they had an optional parameter similar to String.delete with a one multi-character selector, so one could do:

t = str.strip " \t"

One can use a regex for this, but this much simpler.