LARA is a framework written in Java for writing LARA weavers, tools that analyze and transform source code of a given language according to rules written in LARA scripts. LARA scripts can either be plain JavaScript files with the latest EcmaScript syntax (.js files) or EcmaScript 5 (2009) extended with special constructs (.lara files).

[Planned Feature] Currently, the starting point of a LARA weaver is always a .lara file, but we are working on support for the entry point to be either a .lara or .js file.

Quickstart - Introductory video using Kadabra, a Java Weaver (XXmin).

General LARA Tips

Legacy Lara