*matches any number of characters from the set below:
\sany whitespace character
a-zone character from a (9710) to z (12210) (case sensitive)
A-Zone character from A (6510) to Z (9010) (case sensitive)
\da digit
\'the literal ' (3910 / 478 / 2716)
\=the literal = (6110 / 758 / 3D16)
\;the literal ; (5910 / 738 / 3B16)
\:the literal : (5810 / 728 / 3A16)