<span ng-show="ex.t=='exp'">
        (<span ng-repeat="ex in ex.exp">
            {{ex}}
            <span edit-in-place-var-value='ex.v' type='type'></span>
            </span> 
            <span class="dropdown">
            <button class="btn btn-mini" data-toggle="dropdown"><i class="icon icon-align-justify"></i></button>
            <ul class="dropdown-menu" role="menu" aria-labelledby="dLabel">
                <li><a role="menuitem" ng-click="addElVar(ex.exp)">Variável</a></li>
                <li><a role="menuitem" ng-click="addElVal(ex.exp)">Valor</a></li>
                <li><a role="menuitem" ng-click="addElExpB(ex.exp)">Expressão Booleana</a></li>
            </ul>
    </span>)
    </span>
    <span ng-hide="ex.o==''">&nbsp;<span select-operator="ex.o" ex="ex" select-model="ex.v" select-vars="program.functions[currentFunction].vars" type="type"></span>&nbsp;</span>

    <span ng-show="ex.t=='val'">
        <span edit-in-place-var-value='ex.v' type='type'></span>
    </span>
    <span ng-show="ex.t=='var'">
        <span select-variable-expression="ex.v" ex="ex" vars="vars" type="type"></span>
    </span>
    <span ng-show="ex.t=='expB'">
        <span boolean-expression="ex.v" ex="ex" vars="vars"></span>
    </span>