_replaceBrs()

in Readability.js [706:760]

• 37 lines of code
• 12 McCabe index (conditional complexity)

  _replaceBrs(elem) {
    this._forEachNode(this._getAllNodesWithTag(elem, ["br"]), function (br) {
      var next = br.nextSibling;

      // Whether 2 or more <br> elements have been found and replaced with a
      // <p> block.
      var replaced = false;

      // If we find a <br> chain, remove the <br>s until we hit another node
      // or non-whitespace. This leaves behind the first <br> in the chain
      // (which will be replaced with a <p> later).
      while ((next = this._nextNode(next)) && next.tagName == "BR") {
        replaced = true;
        var brSibling = next.nextSibling;
        next.remove();
        next = brSibling;
      }

      // If we removed a <br> chain, replace the remaining <br> with a <p>. Add
      // all sibling nodes as children of the <p> until we hit another <br>
      // chain.
      if (replaced) {
        var p = this._doc.createElement("p");
        br.parentNode.replaceChild(p, br);

        next = p.nextSibling;
        while (next) {
          // If we've hit another <br><br>, we're done adding children to this <p>.
          if (next.tagName == "BR") {
            var nextElem = this._nextNode(next.nextSibling);
            if (nextElem && nextElem.tagName == "BR") {
              break;
            }
          }

          if (!this._isPhrasingContent(next)) {
            break;
          }

          // Otherwise, make this node a child of the new <p>.
          var sibling = next.nextSibling;
          p.appendChild(next);
          next = sibling;
        }

        while (p.lastChild && this._isWhitespace(p.lastChild)) {
          p.lastChild.remove();
        }

        if (p.parentNode.tagName === "P") {
          this._setNodeTag(p.parentNode, "DIV");
        }
      }
    });
  },