Problem with regular expression in asp.net with angularJS (1)

On this site, I got this regex :

@"^\(?\d{2}\)?[\s-]?[\s9]?\d{4}-?\d{4}$"

Then I tried to adapt to my reality, my rule being: Only accept digit (number) in the input. I'm not that stuff with regex , I have trouble with it. I did so:

"^\[1-9]\d{2}\[2-9]\d{4}\[0-9]\d{4}$"

And give me an error of:

  

Error: $ parse: lexerr Lexer Error

I opened the AngularJS page to find out what the error was and I got this:

  

Lexer Error: Unexpected next to column {1} in expression [{2}].   Description Occurs when an expression has a lexical error, for example   a malformed number (0.5-) or an invalid unicode escape.

     

The error message contains more precise error.

     

To solve, learn more about Angular expressions, identify the error   and fix the expression's syntax.

How do I improve my regex , obeying my rule? Only receive number and if there are 11 digits, the third one has to be 9.

My html looks like this:

<label for="celular" class="col-sm-1 control-label">Celular</label>
            <div class="col-sm-2">
                <input id="celular" class="form-control input-sm" name="celular" type="tel" ng-model="vm.data.celular" ng-required="true"
                       ng-pattern="^\[1-9]\d{2}\[2-9]\d{4}\[0-9]\d{4}$" />
                <div class="message" ng-messages="form.celular.$error" ng-show="form.celular.$touched">
                    <div ng-message="required">Por favor, preencha o campo celular!</div>
                    <!--<div ng-message="minlength">O campo celular deve ter no m&iacute;nimo 11 caracteres.</div>
                    <div ng-message="maxlength">O campo celular deve ter no m&aacute;ximo 11 caracteres.</div>-->
                    <div ng-message="pattern">Formato de celular inválido Ex:11988887777</div>
                </div>
            </div>

Before I validated min and max, but it is not necessary with a regex so, since the regex itself already validates.

Even though I put the regex posted by colleague Mariano, I type any number and the cell phone is validated. Here's how it is:

<label for="celular" class="col-sm-1 control-label">Celular</label>
            <div class="col-sm-2">
                <input id="celular" class="form-control input-sm" name="celular" type="tel" ng-model="vm.data.celular" ng-required="true"
                       ng-pattern="[1-9]\d9?\d{8}" />
                <!--@"^\(?\d{2}\)?[\s-]?[\s9]?\d{4}-?\d{4}$"-->
                <div class="message" ng-messages="form.celular.$error" ng-show="form.celular.$touched">
                    <div ng-message="required">Por favor, preencha o campo celular!</div>
                    <!--<div ng-message="minlength">O campo celular deve ter no m&iacute;nimo 11 caracteres.</div>
                    <div ng-message="maxlength">O campo celular deve ter no m&aacute;ximo 11 caracteres.</div>-->
                    <div ng-message="pattern">Formato de celular inválido Ex:11988887777</div>
                </div>
            </div>

If I put it that way, it says invalid format for whatever format I type. ng-pattern="/^[1-9]\d9?\d{11}$/"