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   1  <?php
   2  
   3  /*
   4   * Copyright (C) 2016 Nicolas Grekas - p@tchwork.com
   5   *
   6   * This library is free software; you can redistribute it and/or modify it
   7   * under the terms of the (at your option):
   8   * Apache License v2.0 (http://apache.org/licenses/LICENSE-2.0.txt), or
   9   * GNU General Public License v2.0 (http://gnu.org/licenses/gpl-2.0.txt).
  10   */
  11  
  12  namespace Patchwork;
  13  
  14  /**
  15   * Turkish locale specialized version of Patchwork\Utf8.
  16   */
  17  class TurkishUtf8 extends Utf8
  18  {
  19      public static function strtocasefold($s, $full = true)
  20      {
  21          if (false !== strpos($s, 'İ')) {
  22              $s = str_replace('İ', 'i', $s);
  23          }
  24  
  25          return parent::strtocasefold($s, $full);
  26      }
  27  
  28      public static function stripos($s, $needle, $offset = 0)
  29      {
  30          if (false !== strpos($needle, 'I')) {
  31              $needle = str_replace('I', 'ı', $needle);
  32          }
  33          if (false !== strpos($needle, 'İ')) {
  34              $needle = str_replace('İ', 'i', $needle);
  35          }
  36          if (false !== strpos($s, 'I')) {
  37              $s = str_replace('I', 'ı', $s);
  38          }
  39          if (false !== strpos($s, 'İ')) {
  40              $s = str_replace('İ', 'i', $s);
  41          }
  42  
  43          return parent::stripos($s, $needle, $offset);
  44      }
  45  
  46      public static function strripos($s, $needle, $offset = 0)
  47      {
  48          if (false !== strpos($needle, 'I')) {
  49              $needle = str_replace('I', 'ı', $needle);
  50          }
  51          if (false !== strpos($needle, 'İ')) {
  52              $needle = str_replace('İ', 'i', $needle);
  53          }
  54          if (false !== strpos($s, 'I')) {
  55              $s = str_replace('I', 'ı', $s);
  56          }
  57          if (false !== strpos($s, 'İ')) {
  58              $s = str_replace('İ', 'i', $s);
  59          }
  60  
  61          return parent::strripos($s, $needle, $offset);
  62      }
  63  
  64      public static function stristr($s, $needle, $before_needle = false)
  65      {
  66          $needle = self::stripos($s, $needle);
  67          if (false === $needle) {
  68              return false;
  69          }
  70          if ($before_needle) {
  71              return self::substr($s, 0, $needle);
  72          }
  73  
  74          return self::substr($s, $needle);
  75      }
  76  
  77      public static function strrichr($s, $needle, $before_needle = false)
  78      {
  79          $needle = self::strripos($s, $needle);
  80          if (false === $needle) {
  81              return false;
  82          }
  83          if ($before_needle) {
  84              return self::substr($s, 0, $needle);
  85          }
  86  
  87          return self::substr($s, $needle);
  88      }
  89  
  90      public static function strtolower($s)
  91      {
  92          if (false !== strpos($s, 'İ')) {
  93              $s = str_replace('İ', 'i', $s);
  94          }
  95          if (false !== strpos($s, 'I')) {
  96              $s = str_replace('I', 'ı', $s);
  97          }
  98  
  99          return parent::strtolower($s);
 100      }
 101  
 102      public static function strtoupper($s)
 103      {
 104          if (false !== strpos($s, 'i')) {
 105              $s = str_replace('i', 'İ', $s);
 106          }
 107  
 108          return parent::strtoupper($s);
 109      }
 110  
 111      public static function str_ireplace($search, $replace, $subject, &$count = null)
 112      {
 113          $search = (array) $search;
 114  
 115          foreach ($search as $i => $s) {
 116              if ('' === $s .= '') {
 117                  $s = '/^(?<=.)$/';
 118              } else {
 119                  $s = preg_quote($s, '/');
 120                  $s = strtr($s, array(
 121                      'i' => '(?-i:[iİ])',
 122                      'İ' => '(?-i:[iİ])',
 123                      'ı' => '(?-i:[ıI])',
 124                      'I' => '(?-i:[ıI])',
 125                  ));
 126                  $s = "/{$s}/ui";
 127              }
 128  
 129              $search[$i] = $s;
 130          }
 131  
 132          $subject = preg_replace($search, $replace, $subject, -1, $replace);
 133          $count = $replace;
 134  
 135          return $subject;
 136      }
 137  
 138      public static function ucfirst($s)
 139      {
 140          if ('i' === substr($s, 0, 1)) {
 141              return 'İ'.substr($s, 1);
 142          } else {
 143              return parent::ucfirst($s);
 144          }
 145      }
 146  
 147      public static function ucwords($s)
 148      {
 149          if (false !== strpos($s, 'i')) {
 150              $s = preg_replace('/\bi/u', 'İ', $s);
 151          }
 152  
 153          return parent::ucwords($s);
 154      }
 155  }