Method parse

www/js/_hyperscript.js:6015–6091

(parser)

      return parser.requireElement("expression");
    }
    static parse(parser) {
      if (!parser.matchToken("pick")) return;
      parser.matchToken("the");
      if (parser.matchToken("first")) {
        var follows = parser.pushFollows("of", "from");
        try {
          var count = parser.requireElement("expression");
        } finally {
          parser.popFollows(follows);
        }
        var root = _PickCommand.parseSource(parser);
        return new _PickCommand("first", root, null, null, null, count);
      }
      if (parser.matchToken("last")) {
        var follows = parser.pushFollows("of", "from");
        try {
          var count = parser.requireElement("expression");
        } finally {
          parser.popFollows(follows);
        }
        var root = _PickCommand.parseSource(parser);
        return new _PickCommand("last", root, null, null, null, count);
      }
      if (parser.matchToken("random")) {
        var count = null;
        if (parser.currentToken().type === "NUMBER") {
          var follows = parser.pushFollows("of", "from");
          try {
            count = parser.requireElement("expression");
          } finally {
            parser.popFollows(follows);
          }
        }
        var root = _PickCommand.parseSource(parser);
        return new _PickCommand("random", root, null, null, null, count);
      }
      if (parser.matchToken("item") || parser.matchToken("items") || parser.matchToken("character") || parser.matchToken("characters")) {
        var follows = parser.pushFollows("of", "from");
        try {
          var range = _PickCommand.parsePickRange(parser);
        } finally {
          parser.popFollows(follows);
        }
        var root = _PickCommand.parseSource(parser);
        return new _PickCommand("range", root, range, null, null);
      }
      if (parser.matchToken("match")) {
        parser.matchToken("of");
        var follows = parser.pushFollows("of", "from");
        try {
          var re = parser.parseElement("expression");
          var flags = "";
          if (parser.matchOpToken("|")) {
            flags = parser.requireTokenType("IDENTIFIER").value;
          }
        } finally {
          parser.popFollows(follows);
        }