TypeScript Parser Combinators (parser-ts)

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library 0.7.0 ·javascript
verified May 27, 2026

`parser-ts` is a library providing string parser combinators for TypeScript, heavily influenced by the `purescript-eulalie` library and built upon the foundational `fp-ts` functional programming toolkit. It enables developers to construct complex parsers by combining simpler parsing functions in a declarative manner, leveraging `fp-ts`'s algebraic data types and functional patterns. The current stable version is 0.7.0, with releases occurring periodically to address bugs, introduce new combinators, and align with `fp-ts` peer dependency updates. Its key differentiators include its strong TypeScript typing, functional purity, and close integration with the `fp-ts` ecosystem, making it suitable for applications requiring robust and composable parsing logic within a functional TypeScript codebase. The library primarily focuses on string parsing and is often used for creating DSLs, configuration file parsers, or simple language frontends.

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