|ext:make-case-frob-stream target kind||[Function]|
Returns a stream that sends all output to the stream target, but modifies the case of letters, depending on kind, which should be one of:
- convert to upper case.
- convert to lower case.
- convert the first letter of words to upper case and the rest of the word to lower case.
- convert the first letter of the first word to upper case and everything else to lower case.