# Kommentar 1
NONE = '.*' : 'expected anything' # definition of NONE
# Kommentar 2
NUMERIC = "0|[1-9][0-9]*" : "expected a number" # definition of NUMERIC
# Kommentar 3
+NONE(OPT_XY=~"a\"b'\\\\c\"d") = '.*' : 'expected anything' # extension of NONE
# Kommentar 4
