<form method="post" role="form" ng-submit="doSubmit(token)" ng-disabled="hasError()" novalidate>
    <div class="main-error" ng-if="error">{{error}}</div>
    <fieldset>
        <div class="token">
            <label for="token">Token</label>
            <input type="text" id="token" placeholder="Dein 16-stelliger Token" ng-model="token" />
            <span class="feedback" ng-if="hasError()">
                Das Token ist ein 16-stelliger Wert bestehend aus 0-9 und a-f.
            </span>
        </div>
        <div class="buttons">
            <button class="submit" type="submit" ng-disabled="!token || hasError()">
                <i class="fa fa-pencil"></i> Knotendaten ändern
            </button>
            <button class="cancel" type="reset" ng-click="onCancel()">
                <i class="fa fa-times"></i> Abbrechen
            </button>
        </div>
    </fieldset>
</form>