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 $pattern = '/^(|[-]?\d+(?:[-+*]\d+)*)$/'; 11 12 /** 13 * @inheritdoc 14 * Empty string is valid for numericopt 15 */ 16 public function update($input) { 17 if($input === '') { 18 if($input == $this->local) return false; 19 $this->local = $input; 20 return true; 21 } 22 23 return parent::update($input); 24 } 25} 26