![]() ![]() Lowercase: a–z, SP, Interpret next digit as uppercase, Change to mixed, Interpret next digit as punctuation.Uppercase: A–Z, SP, Change to lowercase, Change to mixed, Interpret next digit as punctuation.Text: Each code word represents two base-30 digits, which are used by a system of four submodes to represent the printable ASCII characters (plus CR, LF and HT):.Numeric: n digits are encoded in ⌊ n/3⌋+1 code words, up to a maximum of 44 digits in 15 code words. ![]() (Because 900 5 > 256 6.) Additional bytes are encoded one per code word. Byte: each group of 5 code words represents 6 bytes.The three major modes encode different types of data in different ways, and can be mixed as necessary within a single bar code: Of the 929 available code words, 900 are used for data, and 29 for special functions, such as shifting between major modes. ![]()
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