{
  "begin": "(?=[a-zA-Z0-9_!?]+\\()",
  "end": "(?<=\\))",
  "name": "meta.function-call.ruby",
  "patterns": [
    { "include": "#nest_function_parens" },
    { "include": "#known_function_names" },
    {
      "match": "([a-zA-Z0-9_!?]+)(?=\\()",
      "name": "entity.name.function.ruby"
    },
    { "include": "$self" }
  ]
}