A formal specification of the jq language

March 29, 2024 · The Ethereal · 🏛 arXiv.org

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Authors Michael Färber arXiv ID 2403.20132 Category cs.LO: Logic in CS Cross-listed cs.PL Citations 0 Venue arXiv.org Last Checked 5 months ago
Abstract
jq is a widely used tool that provides a programming language to manipulate JSON data. However, the jq language is currently only specified by its implementation, making it difficult to reason about its behaviour. To this end, we provide a formal syntax and denotational semantics for a large subset of the jq language. Our most significant contribution is to provide a new way to interpret updates that allows for more predictable and performant execution.
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