views/tag/field/number.html
{% import './help.html' as helpMacro %}
<div id="field-{{ name }}" class="form-group {% if errors[name] %}has-error{% endif %}">
<label for="f-{{ name }}">{{ label or placeholder or name }}</label>
<div>
<input name="{{ name }}" id="f-{{ name }}" type="number" class="form-control {{ class or '' }}" value="{{ data[name] }}" placeholder="{{ placeholder or name }}" />
{{ helpMacro.parse(name, help, errors, errorClass) }}
</div>
</div>