Entering content frame

Character 

A character is an element of a character string or keyword.

Syntax

<character> ::= <digit>
             | <letter>
             | <extended_letter>
             | <hex_digit>
             | <language_specific_character>
             | <special_character>

digit, letter, extended_letter, hex_digit, language_specific_character, special_character

Leaving content frame