Bold text (in terminal) from Ada?

Bold text (in terminal) from Ada?

[reinert]

Any simple way to print out bold text from an Ada program?
In case, how?

Assume linux.

reinert

Re: Bold text (in terminal) from Ada?

[Jeffrey R.Carter]

On 2022-10-11 10:06, reinert wrote:
> Any simple way to print out bold text from an Ada program?
> In case, how?
> 
> Assume linux.

Looking at PragmARC.Ansi_Tty_Control 
(https://github.com/jrcarter/PragmARC/blob/Ada-12/pragmarc-ansi_tty_control.ads) 
we can see that sending

PragmARC.Ansi_Tty_Control.Bold_Mode

to most Linux terminal emulators initiates bold mode.

-- 
Jeff Carter
"Simplicity and elegance are unpopular because
they require hard work and discipline to
achieve and education to be appreciated."
Edsger Dijkstra
170

Re: Bold text (in terminal) from Ada?

[Niklas Holsti]

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;

Re: Bold text (in terminal) from Ada?

[Stephen Leake]

reinert <reinkor@gmail.com> writes:

> Any simple way to print out bold text from an Ada program?
> In case, how?

Totally depends on what device you are printing to.

Others have posted solutions for terminals that respect certain control
codes.

If you are printing to paper or a pdf file, you'll need to use some
typesetting program like latex or Open Office document.

> Assume linux.

Not enough information.

-- 
-- Stephe

Re: Bold text (in terminal) from Ada?

[reinert]

No partly general solution? 

reinert

onsdag 12. oktober 2022 kl. 02:11:25 UTC+2 skrev Stephen Leake:
> reinert <rei...@gmail.com> writes: 
> 
> > Any simple way to print out bold text from an Ada program? 
> > In case, how?
> Totally depends on what device you are printing to. 
> 
> Others have posted solutions for terminals that respect certain control 
> codes. 
> 
> If you are printing to paper or a pdf file, you'll need to use some 
> typesetting program like latex or Open Office document. 
> 
> > Assume linux. 
> 
> Not enough information. 
> 
> -- 
> -- Stephe

Re: Bold text (in terminal) from Ada?

[Emmanuel Briot]

Another candidate is GNATCOLL.Terminal
It supports the ANSI sequences and the Windows historical terminal (the newer Windows Terminal supports the ANSI sequences)

Re: Bold text (in terminal) from Ada?

[onox]

If you're using Alire, try Mosteo's ansiada crate. Add it to your own project with `alr with ansiada`. See https://ada-lang.io/ to get started.