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From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Newsgroups: comp.lang.ada
Subject: Re: Bold text (in terminal) from Ada?
Date: Tue, 11 Oct 2022 11:49:09 +0300
Organization: Tidorum Ltd
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On 2022-10-11 11:06, reinert wrote:
> Any simple way to print out bold text from an Ada program?
> In case, how?
> 
> Assume linux.
> 
> reinert


Print the corresponding ANSI control sequence to turn on bold mode 
before you print the text, then print the ANSI control sequence to turn 
off bold mode.

See https://www.linux.org/threads/ansi-codes-and-colorized-terminals.11706/.

Example:

with Ada.Characters.Latin_1;
with Ada.Text_IO;
procedure Be_Bold
is
    use Ada.Characters, Ada.Text_IO;
begin
    Put ("This is a very ");
    -- Bold mode:
    Put (Latin_1.ESC); Put ("[1m");
    Put ("bold");
    -- Normal mode:
    Put (Latin_1.ESC); Put ("[0m");
    Put_Line (" program.");
end Be_Bold;