Numbers in decimal notation are represented by decimal digits, namely 0 to 9.
Numbers in hexadecimal notation are represented by hexadecimal digits, namely 0 to 9 and A to F, shown in parentheses. For instance, the hexadecimal number D0 shall be written as (D0).
A literal sequence of ASCII characters will be represented by those characters within single quotes. For instance, 'ABC' means the byte sequence (41)(42)(43).
References to characters in the ISO 2022 escape sequence will be given in comma-separated decimal nibble/nibble format, in hexadecimal format, and as ASCII characters, with equal signs between each format, all enclosed within parenthesis. For instance, the 3-byte ISO 2022 escape sequence for Shift-JIS is (2/4, 2/11, 3/10 = (24)(2B)(3A) = '$+:').