voku\helper\UTF8::str_transliterate()

Complexity

Conditions	21
Paths	499

Size

Total Lines	92
Code Lines	50

Duplication

Lines	6
Ratio	6.52 %

Code Coverage

Tests	22
CRAP Score	43.5924

Importance

Changes	5
Bugs	1	Features	0

<?php
  public static function str_transliterate($str, $unknown = '?')
  {
    static $UTF8_TO_ASCII;

    $str = (string)$str;

    if (!isset($str[0])) {
      return '';
    }

    $str = self::clean($str);

    preg_match_all('/.{1}|[^\x00]{1,1}$/us', $str, $ar);
    $chars = $ar[0];
    foreach ($chars as &$c) {

      $ordC0 = ord($c[0]);

      if ($ordC0 >= 0 && $ordC0 <= 127) {
        continue;
      }

      $ordC1 = ord($c[1]);

      // ASCII - next please
      if ($ordC0 >= 192 && $ordC0 <= 223) {
        $ord = ($ordC0 - 192) * 64 + ($ordC1 - 128);
      }

      if ($ordC0 >= 224) {
        $ordC2 = ord($c[2]);

        if ($ordC0 <= 239) {
          $ord = ($ordC0 - 224) * 4096 + ($ordC1 - 128) * 64 + ($ordC2 - 128);
        }

        if ($ordC0 >= 240) {
          $ordC3 = ord($c[3]);

          if ($ordC0 <= 247) {
            $ord = ($ordC0 - 240) * 262144 + ($ordC1 - 128) * 4096 + ($ordC2 - 128) * 64 + ($ordC3 - 128);
          }

          if ($ordC0 >= 248) {
            $ordC4 = ord($c[4]);

            if ($ordC0 <= 251) {

This code seems to be duplicated across your project.

              $ord = ($ordC0 - 248) * 16777216 + ($ordC1 - 128) * 262144 + ($ordC2 - 128) * 4096 + ($ordC3 - 128) * 64 + ($ordC4 - 128);
            }

            if ($ordC0 >= 252) {
              $ordC5 = ord($c[5]);

              if ($ordC0 <= 253) {

This code seems to be duplicated across your project.

                $ord = ($ordC0 - 252) * 1073741824 + ($ordC1 - 128) * 16777216 + ($ordC2 - 128) * 262144 + ($ordC3 - 128) * 4096 + ($ordC4 - 128) * 64 + ($ordC5 - 128);
              }
            }
          }
        }
      }

      if ($ordC0 >= 254 && $ordC0 <= 255) {
        $c = $unknown;
        continue;
      }

      if (!isset($ord)) {
        $c = $unknown;
        continue;
      }

      $bank = $ord >> 8;
      if (!array_key_exists($bank, (array)$UTF8_TO_ASCII)) {
        $bankfile = __DIR__ . '/data/' . sprintf('x%02x', $bank) . '.php';
        if (file_exists($bankfile)) {
          /** @noinspection PhpIncludeInspection */
          require $bankfile;
        } else {
          $UTF8_TO_ASCII[$bank] = array();
        }
      }

      $newchar = $ord & 255;
      if (array_key_exists($newchar, $UTF8_TO_ASCII[$bank])) {
        $c = $UTF8_TO_ASCII[$bank][$newchar];
      } else {
        $c = $unknown;
      }
    }

    return implode('', $chars);
  }