Is there an existing issue for this?

• I have searched the existing issues

What is the missing lexer?

CUE (https://cuelang.org/) is an open source configuration, policy, validation, data and schema language. It has a rich set of APIs and tooling, for defining, generating, and validating all kinds of data: configuration, APIs, database schemas, code, etc.

Links to existing syntax definitions

We are working on various syntax definitions based on the language spec:

https://cuelang.org/docs/references/

The most complete representations to date are:

• https://github.com/eonpatapon/tree-sitter-cue
• https://github.com/monogon-dev/intellij-cue/blob/main/src/grammar/cue.bnf

TextMate grammars will follow.