@hackage / graph-rewriting-lambdascope

Lambdascope is an optimal evaluator of the λβ-calculus described in the paper "Lambdascope - Another optimal implementation of the lambda-calculus" by Vincent van Oostrom, Kees-Jan van de Looij, and Marijn Zwitserlood. This package contains an interactive application, which implements Lambdascope as a port-graph rewriting system. Call "lambdascope" with one of the files from the "examples" directory as an argument. For usage of the GUI see GraphRewriting.GL.UI. Use the "--lmo" flag for leftmost outermost evalution and "--bench" for non-graphical evaluation to weak head normal form.