1<?php 2 3namespace dokuwiki\plugin\config\core\Setting; 4 5/** 6 * Class setting_numericopt 7 */ 8class SettingNumericopt extends SettingNumeric { 9 // just allow an empty config 10 protected $pattern = '/^(|[-]?[0-9]+(?:[-+*][0-9]+)*)$/'; 11 12 /** 13 * @inheritdoc 14 * Empty string is valid for numericopt 15 */ 16 public function update($input) { 17 if($input === '') { 18 return true; 19 } 20 21 return parent::update($input); 22 } 23} 24