protected $_strings = [
		'button'         => '<button{:options}>{:title}</button>',
		'checkbox'       => '<input type="checkbox" name="{:name}"{:options} />',
		'checkbox-multi' => '<input type="checkbox" name="{:name}[]"{:options} />',
		'checkbox-multi-group' => '{:raw}',
		'error'          => '<div{:options}>{:content}</div>',
		'errors'         => '{:raw}',
		'input'          => '<input type="{:type}" name="{:name}"{:options} />',
		'file'           => '<input type="file" name="{:name}"{:options} />',
		'form'           => '<form action="{:url}"{:options}>{:append}',
		'form-end'       => '</form>',
		'hidden'         => '<input type="hidden" name="{:name}"{:options} />',
		'field'          => '<div{:wrap}>{:label}{:input}{:datalist}{:error}</div>',
		'field-checkbox' => '<div{:wrap}>{:input}{:label}{:error}</div>',
		'field-radio'    => '<div{:wrap}>{:input}{:label}{:error}</div>',
		'label'          => '<label for="{:id}"{:options}>{:title}</label>',
		'legend'         => '<legend>{:content}</legend>',
		'option-group'   => '<optgroup label="{:label}"{:options}>{:raw}</optgroup>',
		'password'       => '<input type="password" name="{:name}"{:options} />',
		'radio'          => '<input type="radio" name="{:name}"{:options} />',
		'select'         => '<select name="{:name}"{:options}>{:raw}</select>',
		'select-empty'   => '<option value=""{:options}>&nbsp;</option>',
		'select-multi'   => '<select name="{:name}[]"{:options}>{:raw}</select>',
		'select-option'  => '<option value="{:value}"{:options}>{:title}</option>',
		'submit'         => '<input type="submit" value="{:title}"{:options} />',
		'submit-image'   => '<input type="image" src="{:url}"{:options} />',
		'text'           => '<input type="text" name="{:name}"{:options} />',
		'textarea'       => '<textarea name="{:name}"{:options}>{:value}</textarea>',
		'fieldset'       => '<fieldset{:options}><legend>{:content}</legend>{:raw}</fieldset>',
		'datalist'       => '<datalist{:options}>{:raw}</datalist>',
		'datalist-option' => '<option value="{:value}"></option>'
	];