reghex | The magical sticky regex-based parser generator | Regex library

In your .babelrc, babel.config.js, or package.json:babel add:. Alternatively, you can set up babel-plugin-macros and import reghex from "reghex/macro" instead. This step is optional. reghex can also generate its optimised JS code during runtime. This will only incur a tiny parsing cost on initialisation, but due to the JIT of modern JS engines there won't be any difference in performance between pre-compiled and compiled versions otherwise. Since the reghex runtime is rather small, for larger grammars it may even make sense not to precompile the matchers at all. For this case you may pass the { "codegen": false } option to the Babel plugin, which will minify the reghex matcher templates without precompiling them.