Method parse

www/js/_hyperscript.esm.js:5418–5458

(parser)

    this.args = { thing: thingElt, from, inElt, withinElt };
  }
  static parse(parser) {
    var op = parser.matchAnyToken("next", "previous");
    if (!op) return;
    var forwardSearch = op.value === "next";
    var thingElt = parser.parseElement("leaf");
    if (parser.matchToken("from")) {
      parser.pushFollow("in");
      try {
        var from = parser.requireElement("unaryExpression");
      } finally {
        parser.popFollow();
      }
    } else {
      var from = parser.requireElement("implicitMeTarget");
    }
    var inSearch = false;
    var withinElt;
    if (parser.matchToken("in")) {
      inSearch = true;
      var inElt = parser.requireElement("unaryExpression");
    } else if (parser.matchToken("within")) {
      withinElt = parser.requireElement("unaryExpression");
    } else {
      withinElt = null;
    }
    var wrapping = false;
    if (parser.matchToken("with")) {
      parser.requireToken("wrapping");
      wrapping = true;
    }
    return new _RelativePositionalExpression(
      thingElt,
      from,
      forwardSearch,
      inSearch,
      wrapping,
      inElt,
      withinElt,
      op.value
    );
  }
  scanForwardQuery(start, root, match, wrap) {
    var results = root.querySelectorAll(match);
    for (var i = 0; i < results.length; i++) {