I\'m parsing some nasty files - you know, mix comma, space and tab delimiters in a single line, and then run it through a text editor that word wraps at column 65 with
The ~ means "thru"; thus, U000A, B, C, and D.
The phrase "General Category Z*" is shorthand for "any character whose General Category property is one of the three categories that start with Z." Thus, various forms of space (0020, 00A0, 1680, 2000 thru 200A, 202F, 205F, 3000), plus the line separator (2028) and the paragraph separator (2029).