Escape Characters

' for a single quote
" for a double quote
 for a backslash
\0 for a null character
a for an alert character
b for a backspace
f for a form feed
n for a new line
r for a carriage return
t for a horizontal tab
v for a vertical tab
uxxxx for a unicode character hex value (e.g. u0020)
x is the same as u, but you don't need leading zeroes (.g. x20)
Uxxxxxxxx for a unicode character hex value (longer form needed for generating surrogates)