utf8/str_pad.php

   1 <?php defined('SYSPATH') or die('No direct script access.');
   2 /**
   3  * UTF8::str_pad
   4  *
   5  * @package    Kohana
   6  * @author     Kohana Team
   7  * @copyright  (c) 2007-2011 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($pad_str))
  14                 return str_pad($str, $final_str_length, $pad_str, $pad_type);
  15
  16         $str_length = UTF8::strlen($str);
  17
  18         if ($final_str_length <= 0 OR $final_str_length <= $str_length)
  19                 return $str;
  20
  21         $pad_str_length = UTF8::strlen($pad_str);
  22         $pad_length = $final_str_length - $str_length;
  23
  24         if ($pad_type == STR_PAD_RIGHT)
  25         {
  26                 $repeat = ceil($pad_length / $pad_str_length);
  27                 return UTF8::substr($str.str_repeat($pad_str, $repeat), 0, $final_str_length);
  28         }
  29
  30         if ($pad_type == STR_PAD_LEFT)
  31         {
  32                 $repeat = ceil($pad_length / $pad_str_length);
  33                 return UTF8::substr(str_repeat($pad_str, $repeat), 0, floor($pad_length)).$str;
  34         }
  35
  36         if ($pad_type == STR_PAD_BOTH)
  37         {
  38                 $pad_length /= 2;
  39                 $pad_length_left = floor($pad_length);
  40                 $pad_length_right = ceil($pad_length);
  41                 $repeat_left = ceil($pad_length_left / $pad_str_length);
  42                 $repeat_right = ceil($pad_length_right / $pad_str_length);
  43
  44                 $pad_left = UTF8::substr(str_repeat($pad_str, $repeat_left), 0, $pad_length_left);
  45                 $pad_right = UTF8::substr(str_repeat($pad_str, $repeat_right), 0, $pad_length_right);
  46                 return $pad_left.$str.$pad_right;
  47         }
  48
  49         trigger_error('UTF8::str_pad: Unknown padding type ('.$pad_type.')', E_USER_ERROR);
  50 }