; Identifiers

[
  (field)
  (field_identifier)
] @variable.other.member

(variable) @variable

; Function calls

(function_call
  function: (identifier) @function)

(method_call
  method: (selector_expression
    field: (field_identifier) @function))

; Operators

"|" @operator
":=" @operator

; Builtin functions

((identifier) @function.builtin
 (#match? @function.builtin "^(and|call|html|index|slice|js|len|not|or|print|printf|println|urlquery|eq|ne|lt|ge|gt|ge)$"))

; Delimiters

"." @punctuation.delimiter
"," @punctuation.delimiter

"{{" @punctuation.bracket
"}}" @punctuation.bracket
"{{-" @punctuation.bracket
"-}}" @punctuation.bracket
")" @punctuation.bracket
"(" @punctuation.bracket

; Keywords

"else" @keyword
"if" @keyword
"range" @keyword
"with" @keyword
"end" @keyword
"template" @keyword
"define" @keyword
"block" @keyword

; Literals

[
  (interpreted_string_literal)
  (raw_string_literal)
  (rune_literal)
] @string

(escape_sequence) @string.special

[
  (int_literal)
  (float_literal)
  (imaginary_literal)
] @constant.numeric.integer

[
  (true)
  (false)
] @constant.builtin.boolean

(nil) @constant.builtin

(comment) @comment
(ERROR) @error