0.0-3 Added as_lower() and as_upper() to control replacement case for Perl regex. Added GRAPHEME, NEWLINE + their functional equivalents. dgt(), spc(), etc. have new default of char_class = FALSE. 0.0-2 Added CLOSE_BRACKET. Fixed wrap_in_char_class. Added whole_word(). More examples and docs. 0.0-1 First release.