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Life & fun · April 17, 2025

val – An arbitrary precision calculator language

Wrote this to learn more about the `chumsky` parser combinator library, rustyline, and the `ariadne` error reporting crate. Such a nice DX combo for writing new languages. Still a work in progress, but I thought I'd share :)

val – An arbitrary precision calculator language launched on April 17, 2025 with 34 votes, #686 of 7,818 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 1 year on.

Visit github.com ↗Alternativestop 9% of April 2025

In plain words

val is an arbitrary precision calculator language built as a learning project to explore Rust parsing and error reporting tools. It provides a command-line interface for mathematical calculations with high precision arithmetic. The project demonstrates integration of the chumsky parser combinator library, rustyline for interactive input, and ariadne for user-friendly error messages. Designed for developers interested in language design and Rust tooling, val is still under active development.

written from the facts on this page · September 2026

From the sources

An arbitrary precision calculator language. Contribute to terror/val development by creating an account on GitHub.

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