A CSS parser, transformer, and minifier written in Rust
...This means that each transformer that wants to do something with these values must interpret them itself, leading to duplicate work and inconsistencies. @parcel/css parses all values using the grammar from the CSS specification and exposes a specific value type for each property. Built on the cssparser and selectors crates created by Mozilla and used by Firefox and Servo. These provide a solid general-purpose CSS-parsing foundation on top of which @parcel/css implements support for all specific CSS rules and properties. One of the main purposes of @parcel/css is to minify CSS to make it smaller. ...
C3PO is a software synthesis tool that provides a solution for building maintainable, reliable and robust software infrastructures and/or compiler frontends from a set of attributed grammar rules in EBNF notation.
A LALR(1) Parser Generator for JavaScript written in JavaScript
JS/CC is a parser generator for JavaScript/ECMAScript, which is entirely written in ECMAScript itself. It produces LALR(1) parsers with integrated lexical analyzers. JS/CC can run as a website or be invoked from a console, and runs on several platforms.
The LALR parser generator (LPG) is a tool for developing scanners and parsers written in Java, C++ or C. Input is specified by BNF rules. LPG supports backtracking (to resolve ambiguity), automatic AST generation and grammar inheritance.
Kaptain is a universal graphical front-end for command line programs. Grammar scripts describe the possible parameters for command lines and Kaptain brings up a user friendly dialog for that. Package contains front-ends for Enscript, Indent, Procmail