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   1  <?php
   2  
   3  namespace dokuwiki\Utf8;
   4  
   5  /**
   6   * Provides static access to the UTF-8 conversion tables
   7   *
   8   * Lazy-Loads tables on first access
   9   */
  10  class Table
  11  {
  12  
  13      /**
  14       * Get the upper to lower case conversion table
  15       *
  16       * @return array
  17       */
  18      public static function upperCaseToLowerCase()
  19      {
  20          static $table = null;
  21          if ($table === null) $table = include  __DIR__ . '/tables/case.php';
  22          return $table;
  23      }
  24  
  25      /**
  26       * Get the lower to upper case conversion table
  27       *
  28       * @return array
  29       */
  30      public static function lowerCaseToUpperCase()
  31      {
  32          static $table = null;
  33          if ($table === null) {
  34              $uclc = self::upperCaseToLowerCase();
  35              $table = array_flip($uclc);
  36          }
  37          return $table;
  38      }
  39  
  40      /**
  41       * Get the lower case accent table
  42       * @return array
  43       */
  44      public static function lowerAccents()
  45      {
  46          static $table = null;
  47          if ($table === null) {
  48              $table = include  __DIR__ . '/tables/loweraccents.php';
  49          }
  50          return $table;
  51      }
  52  
  53      /**
  54       * Get the lower case accent table
  55       * @return array
  56       */
  57      public static function upperAccents()
  58      {
  59          static $table = null;
  60          if ($table === null) {
  61              $table = include  __DIR__ . '/tables/upperaccents.php';
  62          }
  63          return $table;
  64      }
  65  
  66      /**
  67       * Get the romanization table
  68       * @return array
  69       */
  70      public static function romanization()
  71      {
  72          static $table = null;
  73          if ($table === null) {
  74              $table = include  __DIR__ . '/tables/romanization.php';
  75          }
  76          return $table;
  77      }
  78  
  79      /**
  80       * Get the special chars as a concatenated string
  81       * @return string
  82       */
  83      public static function specialChars()
  84      {
  85          static $string = null;
  86          if ($string === null) {
  87              $table = include  __DIR__ . '/tables/specials.php';
  88              // FIXME should we cache this to file system?
  89              $string = Unicode::toUtf8($table);
  90          }
  91          return $string;
  92      }
  93  }