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<?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
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Name.php 18993 2009-11-15 17:09:16Z alexander $
*/
/** Zend_Pdf_Element */
require_once 'Zend/Pdf/Element.php';
/**
* PDF file 'name' element implementation
*
* @category Zend
* @package Zend_Pdf
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Pdf_Element_Name extends Zend_Pdf_Element
{
/**
* Object value
*
* @var string
*/
public $value;
/**
* Object constructor
*
* @param string $val
* @throws Zend_Pdf_Exception
*/
public function __construct($val)
{
settype($val, 'string');
if (strpos($val,"\x00") !== false) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Null character is not allowed in PDF Names');
}
$this->value = (string)$val;
}
/**
* Return type of the element.
*
* @return integer
*/
public function getType()
{
return Zend_Pdf_Element::TYPE_NAME;
}
/**
* Escape string according to the PDF rules
*
* @param string $inStr
* @return string
*/
public static function escape($inStr)
{
$outStr = '';
for ($count = 0; $count < strlen($inStr); $count++) {
$nextCode = ord($inStr[$count]);
switch ($inStr[$count]) {
case '(':
// fall through to next case
case ')':
// fall through to next case
case '<':
// fall through to next case
case '>':
// fall through to next case
case '[':
// fall through to next case
case ']':
// fall through to next case
case '{':
// fall through to next case
case '}':
// fall through to next case
case '/':
// fall through to next case
case '%':
// fall through to next case
case '\\':
// fall through to next case
case '#':
$outStr .= sprintf('#%02X', $nextCode);
break;
default:
if ($nextCode >= 33 && $nextCode <= 126 ) {
// Visible ASCII symbol
$outStr .= $inStr[$count];
} else {
$outStr .= sprintf('#%02X', $nextCode);
}
}
}
return $outStr;
}
/**
* Unescape string according to the PDF rules
*
* @param string $inStr
* @return string
*/
public static function unescape($inStr)
{
$outStr = '';
for ($count = 0; $count < strlen($inStr); $count++) {
if ($inStr[$count] != '#' ) {
$outStr .= $inStr[$count];
} else {
// Escape sequence
$outStr .= chr(base_convert(substr($inStr, $count+1, 2), 16, 10 ));
$count +=2;
}
}
return $outStr;
}
/**
* Return object as string
*
* @param Zend_Pdf_Factory $factory
* @return string
*/
public function toString($factory = null)
{
return '/' . self::escape((string)$this->value);
}
}
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