MakeupCel

A Makeup lexer for Google's Common Expression Language (CEL).

Provides syntax highlighting for CEL expressions in ExDoc, Livebook, and any tool that uses the Makeup highlighting pipeline.

Installation

Add makeup_cel to your list of dependencies in mix.exs:

def deps do
  [
    {:makeup_cel, "~> 0.1.0"}
  ]
end

Usage

ExDoc

CEL code blocks are highlighted automatically once the dependency is added:

```cel
request.auth.claims.email.endsWith("@example.com")
```

Standalone

Makeup.highlight("x > 10 ? 'big' : 'small'", lexer: Makeup.Lexers.CelLexer)

Supported syntax

Covers the full CEL lexical spec:

• Keywords: true, false, null, in
• Reserved words: as, break, const, continue, else, for, function, if, import, let, loop, package, namespace, return, var, void, while
• Literals: integers, unsigned integers, hex integers, floats, strings (single/double/triple-quoted), raw strings, bytes literals
• Operators: +, -, *, /, %, <, <=, >=, >, ==, !=, &&, ||, !
• Comments: // single-line
• Builtin functions and type names

License

Apache-2.0 — see LICENSE.