system/core/utf8/str_pad.php

   1 <?php defined('SYSPATH') OR die('No direct access allowed.');
   2 /**
   3  * utf8::str_pad
   4  *
   5  * @package    Core
   6  * @author     Kohana Team
   7  * @copyright  (c) 2007 Kohana Team
   8  * @copyright  (c) 2005 Harry Fuecks
   9  * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
  10  */
  11 function _str_pad($str, $final_str_length, $pad_str = ' ', $pad_type = STR_PAD_RIGHT)
  12 {
  13         if (utf8::is_ascii($str) AND utf8::is_ascii($pad_str))
  14         {
  15                 return str_pad($str, $final_str_length, $pad_str, $pad_type);
  16         }
  17
  18         $str_length = utf8::strlen($str);
  19
  20         if ($final_str_length <= 0 OR $final_str_length <= $str_length)
  21         {
  22                 return $str;
  23         }
  24
  25         $pad_str_length = utf8::strlen($pad_str);
  26         $pad_length = $final_str_length - $str_length;
  27
  28         if ($pad_type == STR_PAD_RIGHT)
  29         {
  30                 $repeat = ceil($pad_length / $pad_str_length);
  31                 return utf8::substr($str.str_repeat($pad_str, $repeat), 0, $final_str_length);
  32         }
  33
  34         if ($pad_type == STR_PAD_LEFT)
  35         {
  36                 $repeat = ceil($pad_length / $pad_str_length);
  37                 return utf8::substr(str_repeat($pad_str, $repeat), 0, floor($pad_length)).$str;
  38         }
  39
  40         if ($pad_type == STR_PAD_BOTH)
  41         {
  42                 $pad_length /= 2;
  43                 $pad_length_left = floor($pad_length);
  44                 $pad_length_right = ceil($pad_length);
  45                 $repeat_left = ceil($pad_length_left / $pad_str_length);
  46                 $repeat_right = ceil($pad_length_right / $pad_str_length);
  47
  48                 $pad_left = utf8::substr(str_repeat($pad_str, $repeat_left), 0, $pad_length_left);
  49                 $pad_right = utf8::substr(str_repeat($pad_str, $repeat_right), 0, $pad_length_left);
  50                 return $pad_left.$str.$pad_right;
  51         }
  52
  53         trigger_error('utf8::str_pad: Unknown padding type (' . $type . ')', E_USER_ERROR);
  54 }