escape sequence

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escape sequence

(character)
(Or "escape code") A series of characters starting with the escape character (ASCII 27). Escape sequences are often used to control display devices such as VDUs. An escape sequence might change the colour of subsequent text, reassign keys on the keyboard, change printer settings or reposition the cursor. The escape sequences of the DEC vt100 video terminal have become a de facto standard for this purpose.

The term is also used for any sequence of characters that temporarily suspends normal processing of a stream of characters to perform some special function. For example, the Hayes modem uses the sequence "+++" to escape to command mode in which characters are interpreted as commands to the modem itself rather than as data to pass through.

escape sequence

(1) A text command that begins with an escape code. Printers are often commanded by escape sequences. See escape code.

(2) In a modem, a unique sequence of characters that precedes a command. It allows modem commands (dial, hang up, etc.) to be transmitted with the data. See TIES and Hayes Smartmodem.
References in periodicals archive ?
You are soon met with alert guards who chase you down in escape sequences as well as stealth situations where you must make little noise and stay out of sight of patrols by using your ears to map out where enemies are going and use your cunning to create openings.
Chicken Run makes explicit references to the film, most notably through the tunnel escape sequences and Ginger's defiant belief that she can free the whole prisoner population.
The current implementation of LPWA replaces certain escape sequences in the user input by the appropriate component of the alias identity.
When a Web site asks a user to supply her username, password, or email address, the user simply types the appropriate two character escape sequence (\u, \p or \@, respectively), and LPWA supplies the appropriate alias.
Telnet provides a way of sending escape sequences that can be used to break the connection to a remote computer, but each version of Telnet seems to use a different key, from ALT-X to CTRL-Q to F10.
Billy Barron at the University of North Texas produces UNT's "Accessing On-Line Bibliographic Databases," which not only lists library OPACs on the Internet (along with some databases), but also provides details on using the various library systems and even an appendix of Telnet escape sequences.
Other new features include support for ODBC/JDBC escape sequences, such as outer joins, scalar functions, and date, time, and timestamp literals; support for retrieving connection information from Oracle's TNSNames file and the Sybase Interfaces file; and support for Oracle 9iR2.
Information about which Escape sequences control which functions is to be found in your printer manual.
NYSE: LXK) today announced the Visual Bar Code Designer for easy creation of PCL escape sequences or PostScript commands to print bar codes using the Optra Bar Code SIMM.
To place the proper ANSI command in the batch file, you will need a text editor or word processor that will allow you to enter escape sequences.
Tun EMUL continues to boast emulations for an extensive list of UNIX, DEC, HP and IBM hosts, as well as fully customizable escape sequences, function keys and character tables.
The InterLynx/3287Plus asynchronous passthrough feature eliminates switching and escape sequences, permitting the active sharing of an ASCII parallel printer between the mainframe and PC or LAN.