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   1  <?php
   2  
   3  declare(strict_types=1);
   4  
   5  namespace Doctrine\Inflector\Rules;
   6  
   7  use Doctrine\Inflector\WordInflector;
   8  
   9  use function strtolower;
  10  use function strtoupper;
  11  use function substr;
  12  
  13  class Substitutions implements WordInflector
  14  {
  15      /** @var Substitution[] */
  16      private $substitutions;
  17  
  18      public function __construct(Substitution ...$substitutions)
  19      {
  20          foreach ($substitutions as $substitution) {
  21              $this->substitutions[$substitution->getFrom()->getWord()] = $substitution;
  22          }
  23      }
  24  
  25      public function getFlippedSubstitutions(): Substitutions
  26      {
  27          $substitutions = [];
  28  
  29          foreach ($this->substitutions as $substitution) {
  30              $substitutions[] = new Substitution(
  31                  $substitution->getTo(),
  32                  $substitution->getFrom()
  33              );
  34          }
  35  
  36          return new Substitutions(...$substitutions);
  37      }
  38  
  39      public function inflect(string $word): string
  40      {
  41          $lowerWord = strtolower($word);
  42  
  43          if (isset($this->substitutions[$lowerWord])) {
  44              $firstLetterUppercase = $lowerWord[0] !== $word[0];
  45  
  46              $toWord = $this->substitutions[$lowerWord]->getTo()->getWord();
  47  
  48              if ($firstLetterUppercase) {
  49                  return strtoupper($toWord[0]) . substr($toWord, 1);
  50              }
  51  
  52              return $toWord;
  53          }
  54  
  55          return $word;
  56      }
  57  }