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:

    “Physical nature lies at our feet shackled with a hundred chains. What of the control of human nature? Do not point to the triumphs of psychiatry, social services or the war against crime. Domination of human nature can only mean the domination of every man by himself.”
    —Johan Huizinga (1872–1945)

    “White Pond and Walden are great crystals on the surface of the earth, Lakes of Light.... They are too pure to have a market value; they contain no muck. How much more beautiful than our lives, how much more transparent than our characters are they! We never learned meanness of them.”
    —Henry David Thoreau (1817–1862)