import { Parser } from "@siteimprove/alfa-parser" ; import { Slice } from "@siteimprove/alfa-slice" ; import { Token } from "../../syntax/token" ; import { Keyword } from "../keyword" ; /**
 *  https public export type System = Keyword < System . Keyword > ; public export namespace System { export type Keyword = "canvas" | "canvastext" | "linktext" | "visitedtext" | "activetext" | "buttonface" | "buttontext" | "field" | "fieldtext" | "highlight" | "highlighttext" | "graytext" ; /**
     *  https export const parse = Keyword . parse ( "canvas" , "canvastext" , "linktext" , "visitedtext" , "activetext" , "buttonface" , "buttontext" , "field" , "fieldtext" , "highlight" , "highlighttext" , "graytext" ) ; }