(date) @field
(txn) @attribute

(account) @type

(amount) @number
(incomplete_amount) @number
(amount_tolerance) @number

(currency) @property

(key) @label
(string) @string

(tag) @constant
(link) @constant

(comment) @comment

[
    (BALANCE) (OPEN) (CLOSE) (COMMODITY) (PAD)
    (EVENT) (PRICE) (NOTE) (DOCUMENT) (QUERY)
    (CUSTOM) (PUSHTAG) (POPTAG) (PUSHMETA)
    (POPMETA) (OPTION) (INCLUDE) (PLUGIN)
] @keyword