Search code examples
perlterminalcursor-positiontermcap

terminal: where am I?


Is there a variable or a function, which can tell me the actual position of the cursor?

#!/usr/bin/env perl
use warnings;
use 5.012;

use Term::ReadKey;
use Term::Cap;
use POSIX;

my( $col, $row ) = GetTerminalSize();

my $termios = new POSIX::Termios;
$termios->getattr;
my $ospeed = $termios->getospeed;

my $terminal = Tgetent Term::Cap { TERM => undef, OSPEED => $ospeed };

# some movement ...

# at which position (x/y) is the cursor now?

Solution

  • I don't think you can determine the cursor position using termcap.

    The termutils manual says:

    If you plan to use the relative cursor motion commands in an application program, you must know what the starting cursor position is. To do this, you must keep track of the cursor position and update the records each time anything is output to the terminal, including graphic characters.