JSONPath support for Ruby

Domain Specific Language for querying NHS NCARDRS datastores

cbor-diag implements diagnostic notation for CBOR, RFC 8949 and RFC 8742

a language for coordinating real world events

A "compiler" for the Delorean programming language

A build tool for Javascript and CSS that takes advantage of best-of-breed helper applications Javascript Lint and JSDoc Toolkit

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A gem to evaluate mathematical equations. Includes support for variables and functions.

Erector is a Builder-like view framework, inspired by Markaby but overcoming some of its flaws. In Erector all views are objects, not template files, which allows the full power of object-oriented programming (inheritance, modular decomposition, encapsulation) in views.

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Fig is a utility for configuring environments and managing dependencies across a team of developers. Given a list of packages and a command to run, Fig builds environment variables named in those packages (e.g., CLASSPATH), then executes the command in that environment. The caller's environment is not affected.

Food products often contain an ingredient list of some sort. This parser tries to recognize the syntax and returns a structured representation of the food ingredients.

Parser for HAProxy logs in the HTTP log format

ice_cube_english provides english time and date parsing for ice_cube.

A reference parser for the Koi language.

Produces truth table and MC/DC test case pairs from parsed logic statement

Lydown is a language and tool for music notation

A markup parser that outputs html and text. Syntax is similar to MediaWiki.