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Differences Between: [Versions 310 and 311] [Versions 310 and 400] [Versions 310 and 401] [Versions 310 and 402] [Versions 310 and 403]

   1  <?php
   2  /**
   3   * This file is part of FPDI
   4   *
   5   * @package   setasign\Fpdi
   6   * @copyright Copyright (c) 2019 Setasign - Jan Slabon (https://www.setasign.com)
   7   * @license   http://opensource.org/licenses/mit-license The MIT License
   8   */
   9  
  10  namespace setasign\Fpdi\PdfParser\Type;
  11  
  12  use setasign\Fpdi\PdfParser\StreamReader;
  13  
  14  /**
  15   * Class representing a hexadecimal encoded PDF string object
  16   *
  17   * @package setasign\Fpdi\PdfParser\Type
  18   */
  19  class PdfHexString extends PdfType
  20  {
  21      /**
  22       * Parses a hexadecimal string object from the stream reader.
  23       *
  24       * @param StreamReader $streamReader
  25       * @return bool|self
  26       */
  27      public static function parse(StreamReader $streamReader)
  28      {
  29          $bufferOffset = $streamReader->getOffset();
  30  
  31          /**
  32           * @var string $buffer
  33           * @var int $pos
  34           */
  35          while (true) {
  36              $buffer = $streamReader->getBuffer(false);
  37              $pos = \strpos($buffer, '>', $bufferOffset);
  38              if ($pos === false) {
  39                  if (!$streamReader->increaseLength()) {
  40                      return false;
  41                  }
  42                  continue;
  43              }
  44  
  45              break;
  46          }
  47  
  48          $result = \substr($buffer, $bufferOffset, $pos - $bufferOffset);
  49          $streamReader->setOffset($pos + 1);
  50  
  51          $v = new self;
  52          $v->value = $result;
  53  
  54          return $v;
  55      }
  56  
  57      /**
  58       * Helper method to create an instance.
  59       *
  60       * @param string $string The hex encoded string.
  61       * @return self
  62       */
  63      public static function create($string)
  64      {
  65          $v = new self;
  66          $v->value = $string;
  67  
  68          return $v;
  69      }
  70  
  71      /**
  72       * Ensures that the passed value is a PdfHexString instance.
  73       *
  74       * @param mixed $hexString
  75       * @return self
  76       * @throws PdfTypeException
  77       */
  78      public static function ensure($hexString)
  79      {
  80          return PdfType::ensureType(self::class, $hexString, 'Hex string value expected.');
  81      }
  82  }