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 have not ceased being fearful, but I have ceased to let fear control me. I have accepted fear as a part of life, specifically the fear of change, the fear of the unknown, and I have gone ahead despite the pounding in the heart that says: turn back, turn back, you’ll die if you venture too far.”
    —Erica Jong, U.S. author. In an essay in The Writer on Her Work, ch. 13 (1980)

    “No one of the characters in my novels has originated, so far as I know, in real life. If anything, the contrary was the case: persons playing a part in my life—the first twenty years of it—had about them something semi-fictitious.”
    —Elizabeth Bowen (1899–1973)