import v2.0.0.0_RC3 | 2012-07-01
https://github.com/lucanos/CommunityID -> http://www.itadmins.net/archives/357
This commit is contained in:
@ -16,14 +16,13 @@
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* @package Zend_Pdf
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: String.php 16541 2009-07-07 06:59:03Z bkarwin $
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* @version $Id: String.php 18993 2009-11-15 17:09:16Z alexander $
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*/
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/** Zend_Pdf_Element */
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require_once 'Zend/Pdf/Element.php';
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/**
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* PDF file 'string' element implementation
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*
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@ -78,170 +77,187 @@ class Zend_Pdf_Element_String extends Zend_Pdf_Element
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/**
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* Escape string according to the PDF rules
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*
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* @param string $inStr
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* @param string $str
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* @return string
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*/
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public static function escape($inStr)
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public static function escape($str)
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{
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$outStr = '';
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$lastNL = 0;
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$outEntries = array();
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for ($count = 0; $count < strlen($inStr); $count++) {
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if (strlen($outStr) - $lastNL > 128) {
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$outStr .= "\\\n";
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$lastNL = strlen($outStr);
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foreach (str_split($str, 128) as $chunk) {
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// Collect sequence of unescaped characters
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$offset = strcspn($chunk, "\n\r\t\x08\x0C()\\");
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$chunkOut = substr($chunk, 0, $offset);
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while ($offset < strlen($chunk)) {
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$nextCode = ord($chunk[$offset++]);
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switch ($nextCode) {
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// "\n" - line feed (LF)
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case 10:
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$chunkOut .= '\\n';
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break;
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// "\r" - carriage return (CR)
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case 13:
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$chunkOut .= '\\r';
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break;
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// "\t" - horizontal tab (HT)
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case 9:
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$chunkOut .= '\\t';
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break;
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// "\b" - backspace (BS)
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case 8:
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$chunkOut .= '\\b';
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break;
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// "\f" - form feed (FF)
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case 12:
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$chunkOut .= '\\f';
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break;
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// '(' - left paranthesis
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case 40:
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$chunkOut .= '\\(';
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break;
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// ')' - right paranthesis
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case 41:
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$chunkOut .= '\\)';
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break;
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// '\' - backslash
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case 92:
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$chunkOut .= '\\\\';
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break;
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default:
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// This code is never executed extually
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//
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// Don't use non-ASCII characters escaping
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// if ($nextCode >= 32 && $nextCode <= 126 ) {
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// // Visible ASCII symbol
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// $chunkEntries[] = chr($nextCode);
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// } else {
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// $chunkEntries[] = sprintf('\\%03o', $nextCode);
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// }
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break;
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}
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// Collect sequence of unescaped characters
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$start = $offset;
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$offset += strcspn($chunk, "\n\r\t\x08\x0C()\\", $offset);
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$chunkOut .= substr($chunk, $start, $offset - $start);
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}
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$nextCode = ord($inStr[$count]);
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switch ($nextCode) {
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// "\n" - line feed (LF)
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case 10:
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$outStr .= '\\n';
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break;
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// "\r" - carriage return (CR)
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case 13:
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$outStr .= '\\r';
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break;
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// "\t" - horizontal tab (HT)
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case 9:
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$outStr .= '\\t';
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break;
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// "\b" - backspace (BS)
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case 8:
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$outStr .= '\\b';
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break;
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// "\f" - form feed (FF)
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case 12:
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$outStr .= '\\f';
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break;
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// '(' - left paranthesis
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case 40:
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$outStr .= '\\(';
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break;
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// ')' - right paranthesis
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case 41:
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$outStr .= '\\)';
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break;
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// '\' - backslash
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case 92:
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$outStr .= '\\\\';
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break;
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default:
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// Don't use non-ASCII characters escaping
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// if ($nextCode >= 32 && $nextCode <= 126 ) {
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// // Visible ASCII symbol
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// $outStr .= $inStr[$count];
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// } else {
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// $outStr .= sprintf('\\%03o', $nextCode);
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// }
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$outStr .= $inStr[$count];
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break;
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}
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$outEntries[] = $chunkOut;
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}
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return $outStr;
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return implode("\\\n", $outEntries);
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}
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/**
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* Unescape string according to the PDF rules
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*
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* @param string $inStr
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* @param string $str
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* @return string
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*/
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public static function unescape($inStr)
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public static function unescape($str)
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{
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$outStr = '';
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$outEntries = array();
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for ($count = 0; $count < strlen($inStr); $count++) {
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if ($inStr[$count] != '\\' || $count == strlen($inStr)-1) {
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$outStr .= $inStr[$count];
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} else { // Escape sequence
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switch ($inStr{++$count}) {
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$offset = 0;
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while ($offset < strlen($str)) {
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// Searche for the next escaped character/sequence
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$escapeCharOffset = strpos($str, '\\', $offset);
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if ($escapeCharOffset === false || $escapeCharOffset == strlen($str) - 1) {
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// There are no escaped characters or '\' char has came at the end of string
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$outEntries[] = substr($str, $offset);
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break;
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} else {
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// Collect unescaped characters sequence
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$outEntries[] = substr($str, $offset, $escapeCharOffset - $offset);
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// Go to the escaped character
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$offset = $escapeCharOffset + 1;
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switch ($str[$offset]) {
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// '\\n' - line feed (LF)
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case 'n':
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$outStr .= "\n";
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$outEntries[] = "\n";
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break;
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// '\\r' - carriage return (CR)
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case 'r':
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$outStr .= "\r";
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$outEntries[] = "\r";
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break;
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// '\\t' - horizontal tab (HT)
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case 't':
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$outStr .= "\t";
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$outEntries[] = "\t";
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break;
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// '\\b' - backspace (BS)
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case 'b':
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$outStr .= "\x08";
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$outEntries[] = "\x08";
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break;
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// '\\f' - form feed (FF)
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case 'f':
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$outStr .= "\x0C";
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$outEntries[] = "\x0C";
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break;
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// '\\(' - left paranthesis
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case '(':
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$outStr .= '(';
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$outEntries[] = '(';
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break;
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// '\\)' - right paranthesis
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case ')':
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$outStr .= ')';
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$outEntries[] = ')';
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break;
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// '\\\\' - backslash
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case '\\':
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$outStr .= '\\';
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$outEntries[] = '\\';
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break;
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// "\\\n" or "\\\n\r"
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case "\n":
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// skip new line symbol
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if ($inStr[$count+1] == "\r") {
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$count++;
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if ($str[$offset + 1] == "\r") {
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$offset++;
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}
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break;
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default:
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if (ord($inStr[$count]) >= ord('0') &&
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ord($inStr[$count]) <= ord('9')) {
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if (strpos('0123456789', $str[$offset]) !== false) {
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// Character in octal representation
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// '\\xxx'
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$nextCode = '0' . $inStr[$count];
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$nextCode = '0' . $str[$offset];
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if (ord($inStr[$count+1]) >= ord('0') &&
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ord($inStr[$count+1]) <= ord('9')) {
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$nextCode .= $inStr{++$count};
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if (strpos('0123456789', $str[$offset + 1]) !== false) {
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$nextCode .= $str[++$offset];
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if (ord($inStr[$count+1]) >= ord('0') &&
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ord($inStr[$count+1]) <= ord('9')) {
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$nextCode .= $inStr{++$count};
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if (strpos('0123456789', $str[$offset + 1]) !== false) {
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$nextCode .= $str[++$offset];
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}
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}
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$outStr .= chr($nextCode);
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$outEntries[] = chr($nextCode);
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} else {
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$outStr .= $inStr[$count];
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$outEntries[] = $str[$offset];
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}
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break;
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}
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$offset++;
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}
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}
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return $outStr;
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return implode($outEntries);
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}
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}
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