Attoparsec
Attoparsec is a high-performance parsing combinator library for Haskell, designed for efficient parsing of binary and textual data. It focuses on speed and low memory usage by using incremental input and backtracking control, making it suitable for parsing large or streaming data. The library provides a monadic interface that allows developers to build parsers by combining smaller parsers, similar to other parser combinator libraries like Parsec.
Developers should learn Attoparsec when they need to parse binary formats (e.g., network protocols, file formats) or text in Haskell applications where performance is critical, such as in data processing pipelines or real-time systems. It is particularly useful for handling streaming data due to its incremental parsing capabilities, and its lightweight design makes it a good choice over heavier alternatives when memory efficiency is a priority.