Life & fun · November 11, 2015
Parinfer – a simpler way to write Lisp
Parinfer - simpler Lisp editing
Parinfer – a simpler way to write Lisp launched on November 11, 2015 with 674 votes, #3 of 4,110 launches that month and more than 99% of that year's launches. The site was still online in September 2026, 10 years on.
In plain words
Parinfer is a tool designed to simplify writing Lisp code by automatically managing parentheses. It infers bracket placement based on indentation, reducing the manual syntax burden that typically makes Lisp challenging for newcomers. The tool is intended for programmers learning or working with Lisp who want a more streamlined coding experience. It stands out by automating parenthesis handling, letting developers focus on logic rather than bracket matching.
written from the facts on this page · September 2026
From the sources
Parinfer is a proof-of-concept editor mode for Lisp programming languages. It simplifies the way we write Lisp by auto-adjusting parens when indentation changes and vice versa. The hope is to make basic Lisp-editing easier for newcomers and experts alike, while still allowing existing plugins like Paredit to satisfy the need for more advanced operations. Lisp is often dismissed as an undesirable programming syntax due to excessive parentheses. Those who have adopted Lisp have long recognized its amazing strengths, but there is still a widely held uncertainty among newcomers about how or even why we must manage so many parens. As a result, Lisp's unique power remains invisible to most under…from shaunlebron.github.io
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