sp = " "
hash = "#"
bs = "\\"
tab = "\t"
nl = "\n"
cr = "\r"
x00 = "\x00"
xE4 = "\xe4"
xFF = "\xff"
u2603 = "\u2603"  # SNOWMAN
uFFFF = "\uffff"
U00010905 = "\U00010905"  # PHOENICIAN LETTER WAU
U0010FFFF = "\U0010ffff"  # Biggest valid Unicode character
var = "${non_existing}"
pipe = "|"
