Function split

worklenz-backend/src/public/tinymce/tinymce.js:4782–4807

(parentElm, splitElm, replacementElm)

      };
      const createRng = () => doc.createRange();
      const split = (parentElm, splitElm, replacementElm) => {
        let range = createRng();
        let beforeFragment;
        let afterFragment;
        if (parentElm && splitElm && parentElm.parentNode && splitElm.parentNode) {
          const parentNode = parentElm.parentNode;
          range.setStart(parentNode, findNodeIndex(parentElm));
          range.setEnd(splitElm.parentNode, findNodeIndex(splitElm));
          beforeFragment = range.extractContents();
          range = createRng();
          range.setStart(splitElm.parentNode, findNodeIndex(splitElm) + 1);
          range.setEnd(parentNode, findNodeIndex(parentElm) + 1);
          afterFragment = range.extractContents();
          parentNode.insertBefore(trimNode(self, beforeFragment, schema), parentElm);
          if (replacementElm) {
            parentNode.insertBefore(replacementElm, parentElm);
          } else {
            parentNode.insertBefore(splitElm, parentElm);
          }
          parentNode.insertBefore(trimNode(self, afterFragment, schema), parentElm);
          remove(parentElm);
          return replacementElm || splitElm;
        } else {
          return undefined;
        }
      };
      const bind = (target, name, func, scope) => {
        if (isArray$1(target)) {
          let i = target.length;