The Escape character reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Escape character

In computing and telecommunication, an escape character is one which has a special meaning in a sequence of characters.

Usually, it signifies that what is to follow is from a different character code, i.e., have meanings other than normal.

• In alphabet coding schemes, a specially designated character, the occurrence of which in the data signifies that one or more of the characters to follow are from a different character code, i.e., have meanings other than normal.
• In a text-control sequence of characters, a control character that indicates the beginning of the sequence and the end of any preceding text. This is for instance used to control character terminals and printers.
• In the ASCII character code, the character ESC with decimal code 27 and hexadecimal code 1B.

Some of this article is based on material from Federal Standard 1037C

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