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ANSI escape sequences are a standard for in-band signaling to control cursor location, color, font styling, and other options on video text terminals and terminal emulators. Certain sequences of bytes , most starting with an ASCII escape character and a bracket character, are embedded into text.
Escape \e [e] Alters the meaning of a limited number of following bytes. Nowadays this is almost always used to introduce an ANSI escape sequence. ^\ 28: 1C: IS 4, FS ␜ File Separator: Can be used as delimiters to mark fields of data structures. US is the lowest level, while RS, GS, and FS are of increasing level to divide groups made up of ...
This was later developed into ANSI escape codes covered by the ANSI X3.64 standard. The escape character also starts each command sequence in the Hewlett-Packard Printer Command Language. An early reference to the term "escape character" is found in Bob Bemer's IBM technical publications, who is credited with inventing this mechanism during his ...
Pages for logged out editors learn more. Contributions; Talk; ANSI escape sequences
In version 13.0, Unicode was extended with another block containing many graphics characters, Symbols for Legacy Computing, which includes a few box-drawing characters and other symbols used by obsolete operating systems (mostly from the 1980s).
The "escape" character (ESC, code 27), for example, was intended originally to allow sending of other control characters as literals instead of invoking their meaning, an "escape sequence". This is the same meaning of "escape" encountered in URL encodings, C language strings, and other systems where certain characters have a reserved meaning.
0x1B (escape, ESC, \e (GCC only), ^[). Introduces an escape sequence. Control characters may be described as doing something when the user inputs them, such as code 3 (End-of-Text character, ETX, ^C) to interrupt the running process, or code 4 (End-of-Transmission character, EOT, ^D), used to end text input on Unix or to exit a Unix shell ...
Some three-digit octal escape sequences are too large to fit in a single byte. This results in an implementation-defined value for the resulting byte. The escape sequence \0 is a commonly used octal escape sequence, which denotes the null character, with value zero in ASCII and most encoding systems.