/framework/vendor/zend/Zend/Pdf/FileParserDataSource/String.php
PHP | 128 lines | 39 code | 16 blank | 73 comment | 2 complexity | fdd78e14ab43cb42d737b6b0cbb634e9 MD5 | raw file
Possible License(s): BSD-3-Clause, LGPL-2.1
- <?php
- /**
- * Zend Framework
- *
- * LICENSE
- *
- * This source file is subject to the new BSD license that is bundled
- * with this package in the file LICENSE.txt.
- * It is also available through the world-wide-web at this URL:
- * http://framework.zend.com/license/new-bsd
- * If you did not receive a copy of the license and are unable to
- * obtain it through the world-wide-web, please send an email
- * to license@zend.com so we can send you a copy immediately.
- *
- * @category Zend
- * @package Zend_Pdf
- * @subpackage FileParser
- * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- * @version $Id: String.php 20096 2010-01-06 02:05:09Z bkarwin $
- */
- /** Zend_Pdf_FileParserDataSource */
- require_once 'Zend/Pdf/FileParserDataSource.php';
- /**
- * Concrete subclass of {@link Zend_Pdf_FileParserDataSource} that provides an
- * interface to binary strings.
- *
- * @package Zend_Pdf
- * @subpackage FileParser
- * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- */
- class Zend_Pdf_FileParserDataSource_String extends Zend_Pdf_FileParserDataSource
- {
- /**** Instance Variables ****/
- /**
- * The string to parse.
- * @var string
- */
- protected $_string = '';
- /**** Public Interface ****/
- /* Concrete Class Implementation */
- /**
- * Object constructor.
- *
- * Verifies that the string is not empty.
- *
- * @param string $string String to parse.
- */
- public function __construct($string)
- {
- if (empty($string)) {
- require_once 'Zend/Pdf/Exception.php';
- throw new Zend_Pdf_Exception('String is empty',
- Zend_Pdf_Exception::PARAMETER_VALUE_OUT_OF_RANGE);
- }
- $this->_size = strlen($string);
- $this->_string = $string;
- }
- /**
- * Object destructor.
- */
- public function __destruct()
- {
- $this->_string = '';
- }
- /**
- * Returns the specified number of raw bytes from the string at the byte
- * offset of the current read position.
- *
- * Advances the read position by the number of bytes read.
- *
- * Throws an exception if there is insufficient data to completely fulfill
- * the request.
- *
- * @param integer $byteCount Number of bytes to read.
- * @return string
- * @throws Zend_Pdf_Exception
- */
- public function readBytes($byteCount)
- {
- if (($this->_offset + $byteCount) > $this->_size) {
- require_once 'Zend/Pdf/Exception.php';
- throw new Zend_Pdf_Exception("Insufficient data to read $byteCount bytes",
- Zend_Pdf_Exception::INSUFFICIENT_DATA);
- }
- $bytes = substr($this->_string, $this->_offset, $byteCount);
- $this->_offset += $byteCount;
- return $bytes;
- }
- /**
- * Returns the entire string.
- *
- * Preserves the current read position.
- *
- * @return string
- */
- public function readAllBytes()
- {
- return $this->_string;
- }
- /* Object Magic Methods */
- /**
- * Returns a string containing the parsed string's length.
- *
- * @return string
- */
- public function __toString()
- {
- return "String ($this->_size bytes)";
- }
- }