Question

The Scala String method (in class StringOps) stripMargin removes leading whitespace from each line of a multi-line String up to and including the pipe (|) character (or other designated delimiter).

Is there an equivalent method to remove trailing whitespace from each line?

I did a quick look through the Scaladocs, but could not find one.

Answer 1

You can easily use a regex for that:

input.replaceAll("""(?m)\s+$""", "")

The (?m) prefix in the regex makes it a multiline regex. \s+ matches 1 or more whitespace characters and $ the end of the line (because of the multiline flag).