Unicode Control Characters

Many Unicode control characters are used to control the interpretation or display of text, but these characters themselves have no visual or spatial representation. For example, the null character (U+0000 ) is used in C-programming application environments to indicate the end of a string of characters. In this way, these programs only require a single starting memory address for a string (as opposed to a starting address and a length), since the string ends once the program reads the null character.

Read more about Unicode Control Characters:  ISO 6429 Control Characters (C0 and C1), Unicode Introduced Separators, Language Tags, Interlinear Annotation, Bidirectional Text Control, Variation Selectors

Famous quotes containing the words control and/or characters:

    “I think it a much wiser thing to secure for the thousands of mothers in this State the legal control of the children they now have, than to bring others into the world who would not belong to me after they were born.”
    —Susan B. Anthony (1820–1906)

    “I cannot be much pleased without an appearance of truth; at least of possibility—I wish the history to be natural though the sentiments are refined; and the characters to be probable, though their behaviour is excelling.”
    —Frances Burney (1752–1840)