This crate provides a cross platform API for working with the
psuedo terminal (pty) interfaces provided by the system.
Unlike other crates in this space, this crate provides a set
of traits that allow selecting from different implementations
at runtime.
This crate is part of [wezterm](https://github.com/wez/wezterm).
```no_run
use portable_pty::{CommandBuilder, PtySize, native_pty_system, PtySystem};
use anyhow::Error;
// Use the native pty implementation for the system
let pty_system = native_pty_system();
// Create a new pty
let mut pair = pty_system.openpty(PtySize {
rows: 24,
cols: 80,
// Not all systems support pixel_width, pixel_height,
// but it is good practice to set it to something
// that matches the size of the selected font. That
// is more complex than can be shown here in this
// brief example though!
pixel_width: 0,
pixel_height: 0,
})?;
// Spawn a shell into the pty
let cmd = CommandBuilder::new("bash");
let child = pair.slave.spawn_command(cmd)?;
// Read and parse output from the pty with reader
let mut reader = pair.master.try_clone_reader()?;
// Send data to the pty by writing to the master
writeln!(pair.master.take_writer()?, "ls -l\r\n")?;
# Ok::<(), Error>(())
```