public/ckeditor/4.4dev/core/htmlparser/fragment.js
function possiblySibling( tag1, tag2 ) {

			if ( tag1 in CKEDITOR.dtd.$listItem || tag1 in CKEDITOR.dtd.$tableContent )
				return tag1 == tag2 || tag1 == 'dt' && tag2 == 'dd' || tag1 == 'dd' && tag2 == 'dt';

			return false;
		}
function possiblySibling( tag1, tag2 ) {

			if ( tag1 in CKEDITOR.dtd.$listItem || tag1 in CKEDITOR.dtd.$tableContent )
				return tag1 == tag2 || tag1 == 'dt' && tag2 == 'dd' || tag1 == 'dd' && tag2 == 'dt';

			return false;
		}
function possiblySibling ( tag1 , tag2 ) { if ( tag1 in CKEDITOR . dtd . $listItem || tag1 in CKEDITOR . dtd . $tableContent ) return tag1 == tag2 || tag1 == 'dt' && tag2 == 'dd' || tag1 == 'dd' && tag2 == 'dt' ; return false ; }
Judge whether two element tag names are likely the siblings from the same structural element.
Judge whether two element tag names are likely the siblings from the same structural element .