A library and skeleton for writing OCaml parsers with beautiful error messages and minimal boilerplate.
Nice Parser is an OCaml library and example skeleton that simplifies writing parsers with high-quality error messages. It consolidates common boilerplate code and provides a clean interface around auto-generated parsers, making parser development more accessible and maintainable.
OCaml developers who need to build parsers, particularly those using Menhir and ocamllex, and who prioritize clear error reporting and reduced boilerplate.
Developers choose Nice Parser for its integration with OCaml's standard toolchain and its focus on generating beautiful, readable error messages using OCaml 4.08+ source highlighting, which reduces debugging time and improves maintainability.
Nice parsers in OCaml without the boilerplate
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Leverages OCaml 4.08+ source highlighting to provide clear, readable parsing errors with token highlighting, as demonstrated in the example output showing precise error locations.
Wraps auto-generated parsers from Menhir in a standardized interface using the Nice_parser.Make functor, eliminating repetitive code and simplifying parser development.
Seamlessly works with OCaml's de-facto standard tools like dune, base, ocamllex, and Menhir, ensuring compatibility and ease of use in modern OCaml projects.
Provides an example project that can be quickly cloned and adapted, allowing developers to start building parsers in seconds with minimal setup, as outlined in the README steps.
Requires OCaml 4.08 or higher for the error highlighting feature, which may exclude projects stuck on older versions or legacy systems.
Involves multiple manual steps like cloning, moving directories, and installing dependencies with opam, which can be cumbersome for those new to the OCaml ecosystem.
Relies solely on Menhir for LR(1) parsing, making it unsuitable for grammars that require more advanced techniques like GLR or PEG parsing.