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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: Can Ada print coloured/styled text to the terminal? (ANSI escape
 sequences?)
Date: Mon, 6 Aug 2018 17:15:03 -0500
Organization: JSA Research & Innovation
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<briot.emmanuel@gmail.com> wrote in message 
news:810948b7-1370-4c0d-aaf3-ed66b7dfbba5@googlegroups.com...

>You can also take a look at GNATCOLL.terminal, in the GNAT
>Components Collection. It will do colors either using ansi escape
>sequences or, on Windows, proper system calls. In terms of
>portability, better to think early on that not all terminals support
>escape sequences...

And they don't all support the same escape sequences, either. But most 
important is that Windows almost never supports escape sequences, so any 
code that you want to be reasonably portable has to avoid them. (If you want 
it really portable, that is to work with other Ada compileers, you have to 
avoid GNATCOLL, too, since it is GNAT-specific.)

                                                   Randy.