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On linux, console applications have the ability to format their output. They can set font color, set background color and can place signs everywehre on the console. Using that it is, for example, possible to implement a tetris game right into the console.
I´m wondering how one can do that. I think they use a output markup language or something else. Can anyone tell me where I can learn more about this?
Thanks very much!
It’s not so much a markup language as a series of escape sequences that trigger the terminal viewer to format in a certain way.
You can send ANSI escape sequences before your output to indicate that the following output should be a certain color, weight, background. You can also send sequences that jump the cursor to specific locations to continue writing output.
If you are going to do a full blown app you should consider using some library such as ncurses which makes these manageable.