package util

import "strings"

// CollapseWhitespace replaces every run of whitespace in s with a single space
// and removes any whitespace at the start and end. Tabs, newlines and spaces
// outside ASCII such as the non-breaking space all count as whitespace, so a
// block of text comes back as one line with single spaces between the words.
// A string that is nothing but whitespace comes back empty.
func CollapseWhitespace(s string) string {
	return strings.Join(strings.Fields(s), " ")
}