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Standard HTML text input with angular data binding.

## Directive Info

- This directive executes at priority level 0.

## Usage

    <input type="text"
           ng-model=""
           [name=""]
           [required=""]
           [ng-required=""]
           [ng-minlength=""]
           [ng-maxlength=""]
           [ng-pattern=""]
           [ng-change=""]
           [ng-trim=""]>

### Arguments

Param | Type | Details
--- | --- | ---
ngModel | string | Assignable angular expression to data-bind to.
name (optional) | string | Property name of the form under which the control is published.
required (optional) | string | Adds `required` validation error key if the value is not entered.
ngRequired (optional) | string | Adds `required` attribute and `required` validation constraint to the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of `required` when you want to data-bind to the `required` attribute.
ngMinlength (optional) | number | Sets `minlength` validation error key if the value is shorter than minlength.
ngMaxlength (optional) | number | Sets `maxlength` validation error key if the value is longer than maxlength.
ngPattern (optional) | string | Sets `pattern` validation error key if the value does not match the RegExp pattern expression. Expected value is `/regexp/` for inline patterns or `regexp` for patterns defined as scope expressions.
ngChange (optional) | string | Angular expression to be executed when input changes due to user interaction with the input element.
ngTrim (optional) | boolean | If set to false Angular will not automatically trim the input.

## Example

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    <script>
      function Ctrl($scope) {
        $scope.text = 'guest';
        $scope.word = /^\s*\w*\s*$/;
      }
    </script>
    <form name="myForm" ng-controller="Ctrl">
      Single word: <input type="text" name="input" ng-model="text"
                          ng-pattern="word" required ng-trim="false">
      <span class="error" ng-show="myForm.input.$error.required">
        Required!</span>
      <span class="error" ng-show="myForm.input.$error.pattern">
        Single word only!</span>

      <tt>text = {{text}}</tt><br/>
      <tt>myForm.input.$valid = {{myForm.input.$valid}}</tt><br/>
      <tt>myForm.input.$error = {{myForm.input.$error}}</tt><br/>
      <tt>myForm.$valid = {{myForm.$valid}}</tt><br/>
      <tt>myForm.$error.required = {{!!myForm.$error.required}}</tt><br/>
     </form>

    var text = element(by.binding('text'));
    var valid = element(by.binding('myForm.input.$valid'));
    var input = element(by.model('text'));

    it('should initialize to model', function() {
      expect(text.getText()).toContain('guest');
      expect(valid.getText()).toContain('true');
    });

    it('should be invalid if empty', function() {
      input.clear();
      input.sendKeys('');

      expect(text.getText()).toEqual('text =');
      expect(valid.getText()).toContain('false');
    });

    it('should be invalid if multi word', function() {
      input.clear();
      input.sendKeys('hello world');

      expect(valid.getText()).toContain('false');
    });