froth-package {froth} | R Documentation |
froth
is a Forth implementation that runs on top of R. This allows users to enjoy the fun of stack-oriented program from within the comfort of R.
You can start a REPL by running froth()
in the terminal. Future additions will add the ability to execute forth scripts.
Running on top of R provides a few key differences relative to other FORTH implementations:
Data can contain arbitrary R objects. Froth searches its dictionary, user-defined words, variables, and then R session variables when deciding how to handle each input word.
R handling of objects. This means that all numerical inputs are inherently identical to R numbers. No need for double-size values, and division operators use R methods by default (so 3 2 /
will return 1.5
, not 1
)
Interpreted loops, meaning loops are supported both inside and outside definitions.
No direct memory access.
Support for saving arbitrary R objects in variable arrays.
Support for R print methods using the .R
word.
## Start a froth REPL
froth()
None; operations within the REPL will only modify the internal froth
stack.
Maintainer: Aidan Lakshman ahl27@pitt.edu
Useful links:
Report bugs at https://github.com/ahl27/froth/issues