     <span ng-switch-default>
            <span data-drop="true" data-jqyoui-options jqyoui-droppable="{onDrop:'onDropFormula(::formula)'}" ng-model="dropped">{{::formula.name}}</span>
            <span ng-repeat="formula in ::formula.children track by formula.id" ng-include="'formula-renderer.html'"></span>
        </span>
    </span>
    <!--<span ng-if="!highlight" id="::formula.id">-->
        <!-- TODO copy from above -->
    <!--</span>-->
</script>

<span ng-include="'formula-renderer.html'"></span>