characters occurring in the string are 8-bit raw bytes.
In hexadecimal and octal escape sequences, the escaped character
-code may contain any number of digits, so the first subsequent
+code may contain a variable number of digits, so the first subsequent
character which is not a valid hexadecimal or octal digit terminates
the escape sequence. If the next character in a string could be
interpreted as a hexadecimal or octal digit, write @w{@samp{\ }}