difftastic/vendored_parsers/tree-sitter-gleam/test/highlight/expressions.gleam

case "12345" {
  "123" <> rest -> rest
  // <- string
  //    ^ operator
  //        ^ variable
  _ -> ""
  //   ^ string
}

   -x
// ^ operator
//  ^ variable
panic as "aaah!"
// <- keyword
//    ^ keyword
//         ^ string