Crate ferth 

A safe, native sized Forth.

Features

• std: Add support for standard input and output.
• repl: Build the REPL.
• unsafe: Enable unchecked stack access optimizations.

use ferth::Ferth;
use ferth::host::NullHost;

let mut fe = Ferth::new([0u8; 65536], NullHost).unwrap();
fe.evaluate("
: square ( n -- n ) dup * ;
2 dup square dup square dup square
").unwrap();
assert_eq!(fe.stack().count(), 4);
assert_eq!(fe.stack().collect::<Vec<_>>(), vec![2, 4, 16, 256]);

Re-exports

pub use error::Error;

pub use error::Result;

Modules

double

Forth double types, sized for the target system.

error

Error and result types.

host

Host traits and implementations.

time

Date and time.

Structs

Config

System environment configuration.

Ferth

The Forth system.

Constants

FALSE

Boolean false. A cell with no bits set (0).

SIZE

The size of a cell in bytes.

TRUE

Boolean true. A cell with all bits set (usize::MAX).