This package defines a grammar for the Atom text editor which describes the Wolfram Language (used in Mathematica).
The list of built-in keywords was calculated using all the symbol names in the System` context of Mathematica 11.3.0.
Contributions are greatly appreciated. Please fork this repository and open a pull request to add snippets, make grammar tweaks, etc.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.