ANSI escape code
The ANSI escape codes (or ANSI codes, control codes, control sequences, etc.) are a set of standard byte sequences which cause special things to happen when interpreted by certain character-based terminals and other output devices. For example, a code might change the text color, or move the cursor. These codes (or some subset of them) are used in ANSI Art and similar types of files.
Most codes produce graphical effects, but a few are intended for sound, or other functions. There are also codes used for input (e.g. keyboard input), but such codes are unlikely to be found in data files.
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Extended colors
The Unix terminal world and the ANSI Art world unfortunately decided on different ways of extending ANSI codes to support more colors.
ANSI Art uses codes like "Esc [ ... t". See [1].
Terminal software uses codes like "Esc [ 38; ... m" and "Esc [ 48; ... m". See [2], and the Wikipedia article.
See also
Specifications
- ANSI control sequences
- ANSI code list
- BBS Documentary Library: Programs: Graphics: ANSI
- Wikipedia: ANSI escape code
- EMCA-48: Control Functions for Coded Character Sets
