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escape character

   Also found in: Acronyms, Wikipedia 0.01 sec.

A control character that precedes a string of one or more other characters that forms a command to a printer or display device. The escape character can be the escape (Esc) character itself (hex 1B in ASCII; hex 27 in EBCDIC) or some arbitrary character. The "escape sequence" causes the device to execute a command rather than print or display the characters. For example, the Escape character followed by &l10, sets the LaserJet printer to landscape mode.

The escape character may be used to achieve the opposite effect, causing a command to be displayed rather than executed. For example, in HTML, an ampersand (&) followed by lt stipulates that the less than symbol (<) should be printed. This is necessary to prevent the browser from executing commands when they are meant to be displayed online for educational purposes.



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Function keys on a terminal may either generate short fixed sequences of characters, often beginning with the escape character (ASCII 27), or the characters they generate may be configured by sending special character
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Function keys on a terminal may either generate short fixed sequences of characters, often beginning with the escape character (ASCII 27), or the characters they generate may be configured by sending special character
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