import highlightjs from "highlight.js";

highlightjs.registerLanguage("graphql", function(e: any): any {
  return {
    aliases: ["gql"],
    keywords: {
      keyword:
        "query mutation subscription|10 type input schema directive interface union scalar fragment|10 enum on ...",
      literal: "true false null"
    },
    contains: [
      e.HASH_COMMENT_MODE,
      e.QUOTE_STRING_MODE,
      e.NUMBER_MODE,
      {
        className: "type",
        begin: "[^\\w][A-Z][a-z]",
        end: "\\W",
        excludeEnd: !0
      },
      {
        className: "literal",
        begin: "[^\\w][A-Z][A-Z]",
        end: "\\W",
        excludeEnd: !0
      },
      {
        className: "variable",
        begin: "\\$",
        end: "\\W",
        excludeEnd: !0
      },
      {
        className: "keyword",
        begin: "[.]{2}",
        end: "\\."
      },
      {
        className: "meta",
        begin: "@",
        end: "\\W",
        excludeEnd: !0
      }
    ],
    illegal: /([;<']|BEGIN)/
  };
});

export default highlightjs;