angularjs - Pass expression to directive for transclusion -

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i have directive uses template generate typeahead in form associated label , css classes.

<div class="form-group" ng-class="{ 'has-success': hassuccess(field),                                     'has-error'  : haserror(field) }"> <label class="control-label" for="{{ field }}">     {{ label }} </label> <input type="text"        class="form-control"        ng-model="model"        name="{{ field }}"        id="{{ field }}"        typeahead="{{ items }}"        required> </div>

this created using following markup:

<fe-ta model='model.state2' label='state' items='s in states'></fe-ta>

the problem expression passed items. following exception:

syntax error: token 'in' unexpected token @ column 3 of expression \  [s in states] starting @ [in states].

my directive takes items in isolate scope expression &

 .directive('feta', function() {     return {       restrict: 'e',       require: ['^form', '^feform'],       scope: {           model: '=',           label: '@',           items: '&       },       templateurl: 'typeahead.tmpl.html',       replace: true,       link: function (scope, element, attrs, controllers) {           var feformcontroller = controllers[1];            scope.field = attrs.model.substring(attrs.model.indexof('.') + 1);           scope.hassuccess = feformcontroller.hassuccess;           scope.haserror = feformcontroller.haserror;       }     };       });

how can pass expression directive?

plunker here: http://plnkr.co/edit/ivvjzuoxkgsaqqgzdpl0?p=preview


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