; Keywords [  "alias"  "and"  "begin"  "break"  "case"  "class"  "def"  "do"  "else"  "elsif"  "end"  "ensure"  "for"  "if"  "in"  "module"  "next"  "or"  "rescue"  "retry"  "return"  "then"  "unless"  "until"  "when"  "while"  "yield"] @keyword ((identifier) @keyword (#match? @keyword "^(private|protected|public)$")) ; Function calls ((identifier) @function.method.builtin (#eq? @function.method.builtin "require")) "defined?" @function.method.builtin (call  method: [(identifier) (constant)] @function.method) ; Function definitions (alias (identifier) @function.method)(setter (identifier) @function.method)(method name: [(identifier) (constant)] @function.method)(singleton_method name: [(identifier) (constant)] @function.method)(method_parameters [  (identifier) @variable.parameter  (optional_parameter name: (identifier) @variable.parameter)  (keyword_parameter [name: (identifier) (":")] @variable.parameter)  ]) ; Identifiers ((identifier) @constant.builtin (#match? @constant.builtin "^__(FILE|LINE|ENCODING)__$")) (file) @constant.builtin(line) @constant.builtin(encoding) @constant.builtin (hash_splat_nil  "**" @operator) @constant.builtin ((constant) @constant (#match? @constant "^[A-Z\\d_]+$")) (global_variable) @constant (constant) @type (superclass  (constant) @type.super) (superclass  (scope_resolution    (constant) @type.super)) (superclass  (scope_resolution    (scope_resolution      (constant) @type.super))) (self) @variable.special(super) @variable.special [  (class_variable)  (instance_variable)] @variable.member  ; Literals [  (string)  (bare_string)  (subshell)  (heredoc_body)  (heredoc_beginning)] @string [  (simple_symbol)  (delimited_symbol)  (hash_key_symbol)  (bare_symbol)] @string.special.symbol (regex) @string.regex(escape_sequence) @escape [  (integer)  (float)] @number [  (nil)  (true)  (false)] @constant.builtin (comment) @comment ; Operators [  "!"  "~"  "+"  "-"  "**"  "*"  "/"  "%"  "<<"  ">>"  "&"  "|"  "^"  ">"  "<"  "<="  ">="  "=="  "!="  "=~"  "!~"  "<=>"  "||"  "&&"  ".."  "..."  "="  "**="  "*="  "/="  "%="  "+="  "-="  "<<="  ">>="  "&&="  "&="  "||="  "|="  "^="  "=>"  "->"  (operator)] @operator [  ","  ";"  "."  "::"] @punctuation.delimiter [  "("  ")"  "["  "]"  "{"  "}"  "%w("  "%i("] @punctuation.bracket (interpolation  "#{" @punctuation.special  "}" @punctuation.special) @embedded