codysnider / tt-rss

lib/phpqrcode/bindings/tcpdf/qrcode.php

Indentation +2732 added lines, -2732 removed lines

@@ -93,168 +93,168 @@ 
 // definitions
 if (!defined('QRCODEDEFS')) {
 
-	/**
-	 * Indicate that definitions for this class are set
-	 */
-	define('QRCODEDEFS', true);
-
-	// -----------------------------------------------------
-
-	// Encoding modes (characters which can be encoded in QRcode)
-
-	/**
-	 * Encoding mode
-	 */
-	define('QR_MODE_NL', -1);
-
-	/**
-	 * Encoding mode numeric (0-9). 3 characters are encoded to 10bit length. In theory, 7089 characters or less can be stored in a QRcode.
-	 */
-	define('QR_MODE_NM', 0);
-
-	/**
-	 * Encoding mode alphanumeric (0-9A-Z $%*+-./:) 45characters. 2 characters are encoded to 11bit length. In theory, 4296 characters or less can be stored in a QRcode.
-	 */
-	define('QR_MODE_AN', 1);
-
-	/**
-	 * Encoding mode 8bit byte data. In theory, 2953 characters or less can be stored in a QRcode.
-	 */
-	define('QR_MODE_8B', 2);
-
-	/**
-	 * Encoding mode KANJI. A KANJI character (multibyte character) is encoded to 13bit length. In theory, 1817 characters or less can be stored in a QRcode.
-	 */
-	define('QR_MODE_KJ', 3);
-
-	/**
-	 * Encoding mode STRUCTURED (currently unsupported)
-	 */
-	define('QR_MODE_ST', 4);
-
-	// -----------------------------------------------------
-
-	// Levels of error correction.
-	// QRcode has a function of an error correcting for miss reading that white is black.
-	// Error correcting is defined in 4 level as below.
-
-	/**
-	 * Error correction level L : About 7% or less errors can be corrected.
-	 */
-	define('QR_ECLEVEL_L', 0);
-
-	/**
-	 * Error correction level M : About 15% or less errors can be corrected.
-	 */
-	define('QR_ECLEVEL_M', 1);
-
-	/**
-	 * Error correction level Q : About 25% or less errors can be corrected.
-	 */
-	define('QR_ECLEVEL_Q', 2);
-
-	/**
-	 * Error correction level H : About 30% or less errors can be corrected.
-	 */
-	define('QR_ECLEVEL_H', 3);
-
-	// -----------------------------------------------------
-
-	// Version. Size of QRcode is defined as version.
-	// Version is from 1 to 40.
-	// Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases.
-	// So version 40 is 177*177 matrix.
-
-	/**
-	 * Maximum QR Code version.
-	 */
-	define('QRSPEC_VERSION_MAX', 40);
-
-	/**
-	 * Maximum matrix size for maximum version (version 40 is 177*177 matrix).
-	 */
+    /**
+     * Indicate that definitions for this class are set
+     */
+    define('QRCODEDEFS', true);
+
+    // -----------------------------------------------------
+
+    // Encoding modes (characters which can be encoded in QRcode)
+
+    /**
+     * Encoding mode
+     */
+    define('QR_MODE_NL', -1);
+
+    /**
+     * Encoding mode numeric (0-9). 3 characters are encoded to 10bit length. In theory, 7089 characters or less can be stored in a QRcode.
+     */
+    define('QR_MODE_NM', 0);
+
+    /**
+     * Encoding mode alphanumeric (0-9A-Z $%*+-./:) 45characters. 2 characters are encoded to 11bit length. In theory, 4296 characters or less can be stored in a QRcode.
+     */
+    define('QR_MODE_AN', 1);
+
+    /**
+     * Encoding mode 8bit byte data. In theory, 2953 characters or less can be stored in a QRcode.
+     */
+    define('QR_MODE_8B', 2);
+
+    /**
+     * Encoding mode KANJI. A KANJI character (multibyte character) is encoded to 13bit length. In theory, 1817 characters or less can be stored in a QRcode.
+     */
+    define('QR_MODE_KJ', 3);
+
+    /**
+     * Encoding mode STRUCTURED (currently unsupported)
+     */
+    define('QR_MODE_ST', 4);
+
+    // -----------------------------------------------------
+
+    // Levels of error correction.
+    // QRcode has a function of an error correcting for miss reading that white is black.
+    // Error correcting is defined in 4 level as below.
+
+    /**
+     * Error correction level L : About 7% or less errors can be corrected.
+     */
+    define('QR_ECLEVEL_L', 0);
+
+    /**
+     * Error correction level M : About 15% or less errors can be corrected.
+     */
+    define('QR_ECLEVEL_M', 1);
+
+    /**
+     * Error correction level Q : About 25% or less errors can be corrected.
+     */
+    define('QR_ECLEVEL_Q', 2);
+
+    /**
+     * Error correction level H : About 30% or less errors can be corrected.
+     */
+    define('QR_ECLEVEL_H', 3);
+
+    // -----------------------------------------------------
+
+    // Version. Size of QRcode is defined as version.
+    // Version is from 1 to 40.
+    // Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases.
+    // So version 40 is 177*177 matrix.
+
+    /**
+     * Maximum QR Code version.
+     */
+    define('QRSPEC_VERSION_MAX', 40);
+
+    /**
+     * Maximum matrix size for maximum version (version 40 is 177*177 matrix).
+     */
     define('QRSPEC_WIDTH_MAX', 177);
 
-	// -----------------------------------------------------
+    // -----------------------------------------------------
 
-	/**
-	 * Matrix index to get width from $capacity array.
-	 */
+    /**
+     * Matrix index to get width from $capacity array.
+     */
     define('QRCAP_WIDTH', 0);
 
     /**
-	 * Matrix index to get number of words from $capacity array.
-	 */
+     * Matrix index to get number of words from $capacity array.
+     */
     define('QRCAP_WORDS', 1);
 
     /**
-	 * Matrix index to get remainder from $capacity array.
-	 */
+     * Matrix index to get remainder from $capacity array.
+     */
     define('QRCAP_REMINDER', 2);
 
     /**
-	 * Matrix index to get error correction level from $capacity array.
-	 */
+     * Matrix index to get error correction level from $capacity array.
+     */
     define('QRCAP_EC', 3);
 
-	// -----------------------------------------------------
+    // -----------------------------------------------------
 
-	// Structure (currently usupported)
+    // Structure (currently usupported)
 
-	/**
-	 * Number of header bits for structured mode
-	 */
+    /**
+     * Number of header bits for structured mode
+     */
     define('STRUCTURE_HEADER_BITS', 20);
 
     /**
-	 * Max number of symbols for structured mode
-	 */
+     * Max number of symbols for structured mode
+     */
     define('MAX_STRUCTURED_SYMBOLS', 16);
 
-	// -----------------------------------------------------
+    // -----------------------------------------------------
 
     // Masks
 
     /**
-	 * Down point base value for case 1 mask pattern (concatenation of same color in a line or a column)
-	 */
+     * Down point base value for case 1 mask pattern (concatenation of same color in a line or a column)
+     */
     define('N1', 3);
 
     /**
-	 * Down point base value for case 2 mask pattern (module block of same color)
-	 */
-	define('N2', 3);
+     * Down point base value for case 2 mask pattern (module block of same color)
+     */
+    define('N2', 3);
 
     /**
-	 * Down point base value for case 3 mask pattern (1:1:3:1:1(dark:bright:dark:bright:dark)pattern in a line or a column)
-	 */
-	define('N3', 40);
+     * Down point base value for case 3 mask pattern (1:1:3:1:1(dark:bright:dark:bright:dark)pattern in a line or a column)
+     */
+    define('N3', 40);
 
     /**
-	 * Down point base value for case 4 mask pattern (ration of dark modules in whole)
-	 */
-	define('N4', 10);
+     * Down point base value for case 4 mask pattern (ration of dark modules in whole)
+     */
+    define('N4', 10);
 
-	// -----------------------------------------------------
+    // -----------------------------------------------------
 
-	// Optimization settings
+    // Optimization settings
 
-	/**
-	 * if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
-	 */
-	define('QR_FIND_BEST_MASK', true);
+    /**
+     * if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+     */
+    define('QR_FIND_BEST_MASK', true);
 
-	/**
-	 * if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
-	 */
-	define('QR_FIND_FROM_RANDOM', 2);
+    /**
+     * if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+     */
+    define('QR_FIND_FROM_RANDOM', 2);
 
-	/**
-	 * when QR_FIND_BEST_MASK === false
-	 */
-	define('QR_DEFAULT_MASK', 2);
+    /**
+     * when QR_FIND_BEST_MASK === false
+     */
+    define('QR_DEFAULT_MASK', 2);
 
-	// -----------------------------------------------------
+    // -----------------------------------------------------
 
 } // end of definitions
 
@@ -262,2614 +262,2614 @@ 
 
 if (!class_exists('QRcode', false)) {
 
-	// for compaibility with PHP4
-	if (!function_exists('str_split')) {
-    	/**
-    	 * Convert a string to an array (needed for PHP4 compatibility)
-    	 * @param string $string The input string.
-    	 * @param int $split_length Maximum length of the chunk.
-    	 * @return  If the optional split_length  parameter is specified, the returned array will be broken down into chunks with each being split_length  in length, otherwise each chunk will be one character in length. FALSE is returned if split_length is less than 1. If the split_length length exceeds the length of string , the entire string is returned as the first (and only) array element.
-    	 */
-		function str_split($string, $split_length = 1) {
-			if ((strlen($string) > $split_length) or (!$split_length)) {
-				do {
-					$c = strlen($string);
-					$parts[] = substr($string, 0, $split_length);
-					$string = substr($string, $split_length);
-				} while ($string !== false);
-			} else {
-				$parts = array($string);
-			}
-			return $parts;
-		}
-	}
-
-	// #####################################################
-
-	/**
-	 * Class to create QR-code arrays for TCPDF class.
-	 * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
-	 * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
-	 * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
-	 * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
-	 *
-	 * This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
-	 * Please read comments on this class source file for full copyright and license information.
-	 *
-	 * @name QRcode
-	 * @package com.tecnick.tcpdf
-	 * @abstract Class for generating QR-code array for TCPDF.
-	 * @author Nicola Asuni
-	 * @copyright 2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
-	 * @link http://www.tcpdf.org
-	 * @license http://www.gnu.org/copyleft/lesser.html LGPL
-	 * @version 1.0.002
-	 */
-	class QRcode {
-
-		/**
-		 * @var barcode array to be returned which is readable by TCPDF
-		 * @access protected
-		 */
-		protected $barcode_array = array();
-
-		/**
-		 * @var QR code version. Size of QRcode is defined as version. Version is from 1 to 40. Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases. So version 40 is 177*177 matrix.
-		 * @access protected
-		 */
-		protected $version = 0;
-
-		/**
-		 * @var Levels of error correction. See definitions for possible values.
-		 * @access protected
-		 */
-		protected $level = QR_ECLEVEL_L;
-
-		/**
-		 * @var Encoding mode
-		 * @access protected
-		 */
-		protected $hint = QR_MODE_8B;
-
-		/**
-		 * @var if true the input string will be converted to uppercase
-		 * @access protected
-		 */
-		protected $casesensitive = true;
-
-		/**
-		 * @var structured QR code (not supported yet)
-		 * @access protected
-		 */
-		protected $structured = 0;
-
-		/**
-		 * @var mask data
-		 * @access protected
-		 */
-		protected $data;
-
-		// FrameFiller
-
-		/**
-		 * @var width
-		 * @access protected
-		 */
-		protected $width;
-
-		/**
-		 * @var frame
-		 * @access protected
-		 */
-		protected $frame;
-
-		/**
-		 * @var X position of bit
-		 * @access protected
-		 */
-		protected $x;
-
-		/**
-		 * @var Y position of bit
-		 * @access protected
-		 */
-		protected $y;
-
-		/**
-		 * @var direction
-		 * @access protected
-		 */
-		protected $dir;
-
-		/**
-		 * @var single bit
-		 * @access protected
-		 */
-		protected $bit;
-
-		// ---- QRrawcode ----
-
-		/**
-		 * @var data code
-		 * @access protected
-		 */
-		protected $datacode = array();
-
-		/**
-		 * @var error correction code
-		 * @access protected
-		 */
-		protected $ecccode = array();
-
-		/**
-		 * @var blocks
-		 * @access protected
-		 */
-		protected $blocks;
-
-		/**
-		 * @var Reed-Solomon blocks
-		 * @access protected
-		 */
-		protected $rsblocks = array(); //of RSblock
-
-		/**
-		 * @var counter
-		 * @access protected
-		 */
-		protected $count;
-
-		/**
-		 * @var data length
-		 * @access protected
-		 */
-		protected $dataLength;
-
-		/**
-		 * @var error correction length
-		 * @access protected
-		 */
-		protected $eccLength;
-
-		/**
-		 * @var b1
-		 * @access protected
-		 */
-		protected $b1;
-
-		// ---- QRmask ----
-
-		/**
-		 * @var run length
-		 * @access protected
-		 */
-		protected $runLength = array();
-
-		// ---- QRsplit ----
-
-		/**
-		 * @var input data string
-		 * @access protected
-		 */
-		protected $dataStr = '';
-
-		/**
-		 * @var input items
-		 * @access protected
-		 */
-		protected $items;
-
-		// Reed-Solomon items
-
-		/**
-		 * @var Reed-Solomon items
-		 * @access protected
-		 */
-		protected $rsitems = array();
-
-		/**
-		 * @var array of frames
-		 * @access protected
-		 */
-		protected $frames = array();
-
-		/**
-		 * @var alphabet-numeric convesion table
-		 * @access protected
-		 */
-		protected $anTable = array(
-			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
-			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
-			36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43, //
-			 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 44, -1, -1, -1, -1, -1, //
-			-1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, //
-			25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, //
-			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
-			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1  //
-			);
-
-		/**
-		 * @var array Table of the capacity of symbols
-		 * See Table 1 (pp.13) and Table 12-16 (pp.30-36), JIS X0510:2004.
-		 * @access protected
-		 */
-		protected $capacity = array(
-			array(0, 0, 0, array(0, 0, 0, 0)), //
-			array(21, 26, 0, array(7, 10, 13, 17)), //  1
-			array(25, 44, 7, array(10, 16, 22, 28)), //
-			array(29, 70, 7, array(15, 26, 36, 44)), //
-			array(33, 100, 7, array(20, 36, 52, 64)), //
-			array(37, 134, 7, array(26, 48, 72, 88)), //  5
-			array(41, 172, 7, array(36, 64, 96, 112)), //
-			array(45, 196, 0, array(40, 72, 108, 130)), //
-			array(49, 242, 0, array(48, 88, 132, 156)), //
-			array(53, 292, 0, array(60, 110, 160, 192)), //
-			array(57, 346, 0, array(72, 130, 192, 224)), // 10
-			array(61, 404, 0, array(80, 150, 224, 264)), //
-			array(65, 466, 0, array(96, 176, 260, 308)), //
-			array(69, 532, 0, array(104, 198, 288, 352)), //
-			array(73, 581, 3, array(120, 216, 320, 384)), //
-			array(77, 655, 3, array(132, 240, 360, 432)), // 15
-			array(81, 733, 3, array(144, 280, 408, 480)), //
-			array(85, 815, 3, array(168, 308, 448, 532)), //
-			array(89, 901, 3, array(180, 338, 504, 588)), //
-			array(93, 991, 3, array(196, 364, 546, 650)), //
-			array(97, 1085, 3, array(224, 416, 600, 700)), // 20
-			array(101, 1156, 4, array(224, 442, 644, 750)), //
-			array(105, 1258, 4, array(252, 476, 690, 816)), //
-			array(109, 1364, 4, array(270, 504, 750, 900)), //
-			array(113, 1474, 4, array(300, 560, 810, 960)), //
-			array(117, 1588, 4, array(312, 588, 870, 1050)), // 25
-			array(121, 1706, 4, array(336, 644, 952, 1110)), //
-			array(125, 1828, 4, array(360, 700, 1020, 1200)), //
-			array(129, 1921, 3, array(390, 728, 1050, 1260)), //
-			array(133, 2051, 3, array(420, 784, 1140, 1350)), //
-			array(137, 2185, 3, array(450, 812, 1200, 1440)), // 30
-			array(141, 2323, 3, array(480, 868, 1290, 1530)), //
-			array(145, 2465, 3, array(510, 924, 1350, 1620)), //
-			array(149, 2611, 3, array(540, 980, 1440, 1710)), //
-			array(153, 2761, 3, array(570, 1036, 1530, 1800)), //
-			array(157, 2876, 0, array(570, 1064, 1590, 1890)), // 35
-			array(161, 3034, 0, array(600, 1120, 1680, 1980)), //
-			array(165, 3196, 0, array(630, 1204, 1770, 2100)), //
-			array(169, 3362, 0, array(660, 1260, 1860, 2220)), //
-			array(173, 3532, 0, array(720, 1316, 1950, 2310)), //
-			array(177, 3706, 0, array(750, 1372, 2040, 2430))  // 40
-		);
-
-		/**
-		 * @var array Length indicator
-		 * @access protected
-		 */
-		protected $lengthTableBits = array(
-			array(10, 12, 14),
-			array(9, 11, 13),
-			array(8, 16, 16),
-			array(8, 10, 12)
-		);
-
-		/**
-		 * @var array Table of the error correction code (Reed-Solomon block)
-		 * See Table 12-16 (pp.30-36), JIS X0510:2004.
-		 * @access protected
-		 */
-		protected $eccTable = array(
-			array(array(0, 0), array(0, 0), array(0, 0), array(0, 0)), //
-			array(array(1, 0), array(1, 0), array(1, 0), array(1, 0)), //  1
-			array(array(1, 0), array(1, 0), array(1, 0), array(1, 0)), //
-			array(array(1, 0), array(1, 0), array(2, 0), array(2, 0)), //
-			array(array(1, 0), array(2, 0), array(2, 0), array(4, 0)), //
-			array(array(1, 0), array(2, 0), array(2, 2), array(2, 2)), //  5
-			array(array(2, 0), array(4, 0), array(4, 0), array(4, 0)), //
-			array(array(2, 0), array(4, 0), array(2, 4), array(4, 1)), //
-			array(array(2, 0), array(2, 2), array(4, 2), array(4, 2)), //
-			array(array(2, 0), array(3, 2), array(4, 4), array(4, 4)), //
-			array(array(2, 2), array(4, 1), array(6, 2), array(6, 2)), // 10
-			array(array(4, 0), array(1, 4), array(4, 4), array(3, 8)), //
-			array(array(2, 2), array(6, 2), array(4, 6), array(7, 4)), //
-			array(array(4, 0), array(8, 1), array(8, 4), array(12, 4)), //
-			array(array(3, 1), array(4, 5), array(11, 5), array(11, 5)), //
-			array(array(5, 1), array(5, 5), array(5, 7), array(11, 7)), // 15
-			array(array(5, 1), array(7, 3), array(15, 2), array(3, 13)), //
-			array(array(1, 5), array(10, 1), array(1, 15), array(2, 17)), //
-			array(array(5, 1), array(9, 4), array(17, 1), array(2, 19)), //
-			array(array(3, 4), array(3, 11), array(17, 4), array(9, 16)), //
-			array(array(3, 5), array(3, 13), array(15, 5), array(15, 10)), // 20
-			array(array(4, 4), array(17, 0), array(17, 6), array(19, 6)), //
-			array(array(2, 7), array(17, 0), array(7, 16), array(34, 0)), //
-			array(array(4, 5), array(4, 14), array(11, 14), array(16, 14)), //
-			array(array(6, 4), array(6, 14), array(11, 16), array(30, 2)), //
-			array(array(8, 4), array(8, 13), array(7, 22), array(22, 13)), // 25
-			array(array(10, 2), array(19, 4), array(28, 6), array(33, 4)), //
-			array(array(8, 4), array(22, 3), array(8, 26), array(12, 28)), //
-			array(array(3, 10), array(3, 23), array(4, 31), array(11, 31)), //
-			array(array(7, 7), array(21, 7), array(1, 37), array(19, 26)), //
-			array(array(5, 10), array(19, 10), array(15, 25), array(23, 25)), // 30
-			array(array(13, 3), array(2, 29), array(42, 1), array(23, 28)), //
-			array(array(17, 0), array(10, 23), array(10, 35), array(19, 35)), //
-			array(array(17, 1), array(14, 21), array(29, 19), array(11, 46)), //
-			array(array(13, 6), array(14, 23), array(44, 7), array(59, 1)), //
-			array(array(12, 7), array(12, 26), array(39, 14), array(22, 41)), // 35
-			array(array(6, 14), array(6, 34), array(46, 10), array(2, 64)), //
-			array(array(17, 4), array(29, 14), array(49, 10), array(24, 46)), //
-			array(array(4, 18), array(13, 32), array(48, 14), array(42, 32)), //
-			array(array(20, 4), array(40, 7), array(43, 22), array(10, 67)), //
-			array(array(19, 6), array(18, 31), array(34, 34), array(20, 61))  // 40
-		);
-
-		/**
-		 * @var array Positions of alignment patterns.
-		 * This array includes only the second and the third position of the alignment patterns. Rest of them can be calculated from the distance between them.
-		 * See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
-		 * @access protected
-		 */
-		protected $alignmentPattern = array(
-			array(0, 0),
-			array(0, 0), array(18, 0), array(22, 0), array(26, 0), array(30, 0), //  1- 5
-			array(34, 0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), //  6-10
-			array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), // 11-15
-			array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), // 16-20
-			array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), // 21-25
-			array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), // 26-30
-			array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), // 31-35
-			array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58)  // 35-40
-		);
-
-		/**
-		 * @var array Version information pattern (BCH coded).
-		 * See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
-		 * size: [QRSPEC_VERSION_MAX - 6]
-		 * @access protected
-		 */
-		protected $versionPattern = array(
-			0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d, //
-			0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9, //
-			0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75, //
-			0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64, //
-			0x27541, 0x28c69
-		);
-
-		/**
-		 * @var array Format information
-		 * @access protected
-		 */
-		protected $formatInfo = array(
-			array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976), //
-			array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0), //
-			array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed), //
-			array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)  //
-		);
-
-
-		// -------------------------------------------------
-		// -------------------------------------------------
-
-
-		/**
-		 * This is the class constructor.
-		 * Creates a QRcode object
-		 * @param string $code code to represent using QRcode
-		 * @param string $eclevel error level: <ul><li>L : About 7% or less errors can be corrected.</li><li>M : About 15% or less errors can be corrected.</li><li>Q : About 25% or less errors can be corrected.</li><li>H : About 30% or less errors can be corrected.</li></ul>
-		 * @access public
-		 * @since 1.0.000
-		 */
-		public function __construct($code, $eclevel = 'L') {
-			$barcode_array = array();
-			if ((is_null($code)) or ($code == '\0') or ($code == '')) {
-				return false;
-			}
-			// set error correction level
-			$this->level = array_search($eclevel, array('L', 'M', 'Q', 'H'));
-			if ($this->level === false) {
-				$this->level = QR_ECLEVEL_L;
-			}
-			if (($this->hint != QR_MODE_8B) and ($this->hint != QR_MODE_KJ)) {
-				return false;
-			}
-			if (($this->version < 0) or ($this->version > QRSPEC_VERSION_MAX)) {
-				return false;
-			}
-			$this->items = array();
-			$this->encodeString($code);
-			$qrTab = $this->binarize($this->data);
-			$size = count($qrTab);
-			$barcode_array['num_rows'] = $size;
-			$barcode_array['num_cols'] = $size;
-			$barcode_array['bcode'] = array();
-			foreach ($qrTab as $line) {
-				$arrAdd = array();
-				foreach (str_split($line) as $char) {
-					$arrAdd[] = ($char == '1') ? 1 : 0;
-				}
-				$barcode_array['bcode'][] = $arrAdd;
-			}
-			$this->barcode_array = $barcode_array;
-		}
-
-		/**
-		 * Returns a barcode array which is readable by TCPDF
-		 * @return array barcode array readable by TCPDF;
-		 * @access public
-		 */
-		public function getBarcodeArray() {
-			return $this->barcode_array;
-		}
-
-		/**
-		 * Convert the frame in binary form
-		 * @param array $frame array to binarize
-		 * @return array frame in binary form
-		 */
-		protected function binarize($frame) {
-			$len = count($frame);
-			// the frame is square (width = height)
-			foreach ($frame as &$frameLine) {
-				for ($i = 0; $i < $len; $i++) {
-					$frameLine[$i] = (ord($frameLine[$i]) & 1) ? '1' : '0';
-				}
-			}
-			return $frame;
-		}
-
-		/**
-		 * Encode the input string to QR code
-		 * @param string $string input string to encode
-		 */
-		protected function encodeString($string) {
-			$this->dataStr = $string;
-			if (!$this->casesensitive) {
-				$this->toUpper();
-			}
-			$ret = $this->splitString();
-			if ($ret < 0) {
-				return null;
-			}
-			$this->encodeMask(-1);
-		}
-
-		/**
-		 * Encode mask
-		 * @param int $mask masking mode
-		 */
-		protected function encodeMask($mask) {
-			$spec = array(0, 0, 0, 0, 0);
-			$this->datacode = $this->getByteStream($this->items);
-			if (is_null($this->datacode)) {
-				return null;
-			}
-			$spec = $this->getEccSpec($this->version, $this->level, $spec);
-			$this->b1 = $this->rsBlockNum1($spec);
-			$this->dataLength = $this->rsDataLength($spec);
-			$this->eccLength = $this->rsEccLength($spec);
-			$this->ecccode = array_fill(0, $this->eccLength, 0);
-			$this->blocks = $this->rsBlockNum($spec);
-			$ret = $this->init($spec);
-			if ($ret < 0) {
-				return null;
-			}
-			$this->count = 0;
-			$this->width = $this->getWidth($this->version);
-			$this->frame = $this->newFrame($this->version);
-			$this->x = $this->width - 1;
-			$this->y = $this->width - 1;
-			$this->dir = -1;
-			$this->bit = -1;
-			// inteleaved data and ecc codes
-			for ($i = 0; $i < ($this->dataLength + $this->eccLength); $i++) {
-				$code = $this->getCode();
-				$bit = 0x80;
-				for ($j = 0; $j < 8; $j++) {
-					$addr = $this->getNextPosition();
-					$this->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
-					$bit = $bit >> 1;
-				}
-			}
-			// remainder bits
-			$j = $this->getRemainder($this->version);
-			for ($i = 0; $i < $j; $i++) {
-				$addr = $this->getNextPosition();
-				$this->setFrameAt($addr, 0x02);
-			}
-			// masking
-			$this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
-			if ($mask < 0) {
-				if (QR_FIND_BEST_MASK) {
-					$masked = $this->mask($this->width, $this->frame, $this->level);
-				} else {
-					$masked = $this->makeMask($this->width, $this->frame, (intval(QR_DEFAULT_MASK) % 8), $this->level);
-				}
-			} else {
-				$masked = $this->makeMask($this->width, $this->frame, $mask, $this->level);
-			}
-			if ($masked == null) {
-				return null;
-			}
-			$this->data = $masked;
-		}
-
-		// - - - - - - - - - - - - - - - - - - - - - - - - -
-
-		// FrameFiller
-
-		/**
-		 * Set frame value at specified position
-		 * @param array $at x,y position
-		 * @param int $val value of the character to set
-		 */
-		protected function setFrameAt($at, $val) {
-			$this->frame[$at['y']][$at['x']] = chr($val);
-		}
-
-		/**
-		 * Get frame value at specified position
-		 * @param array $at x,y position
-		 * @return value at specified position
-		 */
-		protected function getFrameAt($at) {
-			return ord($this->frame[$at['y']][$at['x']]);
-		}
-
-		/**
-		 * Return the next frame position
-		 * @return array of x,y coordinates
-		 */
-		protected function getNextPosition() {
-			do {
-				if ($this->bit == -1) {
-					$this->bit = 0;
-					return array('x'=>$this->x, 'y'=>$this->y);
-				}
-				$x = $this->x;
-				$y = $this->y;
-				$w = $this->width;
-				if ($this->bit == 0) {
-					$x--;
-					$this->bit++;
-				} else {
-					$x++;
-					$y += $this->dir;
-					$this->bit--;
-				}
-				if ($this->dir < 0) {
-					if ($y < 0) {
-						$y = 0;
-						$x -= 2;
-						$this->dir = 1;
-						if ($x == 6) {
-							$x--;
-							$y = 9;
-						}
-					}
-				} else {
-					if ($y == $w) {
-						$y = $w - 1;
-						$x -= 2;
-						$this->dir = -1;
-						if ($x == 6) {
-							$x--;
-							$y -= 8;
-						}
-					}
-				}
-				if (($x < 0) or ($y < 0)) {
-					return null;
-				}
-				$this->x = $x;
-				$this->y = $y;
-			} while (ord($this->frame[$y][$x]) & 0x80);
-			return array('x'=>$x, 'y'=>$y);
-		}
-
-		// - - - - - - - - - - - - - - - - - - - - - - - - -
-
-		// QRrawcode
-
-		/**
-		 * Initialize code.
-		 * @param array $spec array of ECC specification
-		 * @return 0 in case of success, -1 in case of error
-		 */
-		protected function init($spec) {
-			$dl = $this->rsDataCodes1($spec);
-			$el = $this->rsEccCodes1($spec);
-			$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
-			$blockNo = 0;
-			$dataPos = 0;
-			$eccPos = 0;
-			$endfor = $this->rsBlockNum1($spec);
-			for ($i = 0; $i < $endfor; ++$i) {
-				$ecc = array_slice($this->ecccode, $eccPos);
-				$this->rsblocks[$blockNo] = array();
-				$this->rsblocks[$blockNo]['dataLength'] = $dl;
-				$this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
-				$this->rsblocks[$blockNo]['eccLength'] = $el;
-				$ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
-				$this->rsblocks[$blockNo]['ecc'] = $ecc;
-				$this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
-				$dataPos += $dl;
-				$eccPos += $el;
-				$blockNo++;
-			}
-			if ($this->rsBlockNum2($spec) == 0) {
-				return 0;
-			}
-			$dl = $this->rsDataCodes2($spec);
-			$el = $this->rsEccCodes2($spec);
-			$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
-			if ($rs == null) {
-				return -1;
-			}
-			$endfor = $this->rsBlockNum2($spec);
-			for ($i = 0; $i < $endfor; ++$i) {
-				$ecc = array_slice($this->ecccode, $eccPos);
-				$this->rsblocks[$blockNo] = array();
-				$this->rsblocks[$blockNo]['dataLength'] = $dl;
-				$this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
-				$this->rsblocks[$blockNo]['eccLength'] = $el;
-				$ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
-				$this->rsblocks[$blockNo]['ecc'] = $ecc;
-				$this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
-				$dataPos += $dl;
-				$eccPos += $el;
-				$blockNo++;
-			}
-			return 0;
-		}
-
-		/**
-		 * Return Reed-Solomon block code.
-		 * @return array rsblocks
-		 */
-		protected function getCode() {
-			if ($this->count < $this->dataLength) {
-				$row = $this->count % $this->blocks;
-				$col = $this->count / $this->blocks;
-				if ($col >= $this->rsblocks[0]['dataLength']) {
-					$row += $this->b1;
-				}
-				$ret = $this->rsblocks[$row]['data'][$col];
-			} elseif ($this->count < $this->dataLength + $this->eccLength) {
-				$row = ($this->count - $this->dataLength) % $this->blocks;
-				$col = ($this->count - $this->dataLength) / $this->blocks;
-				$ret = $this->rsblocks[$row]['ecc'][$col];
-			} else {
-				return 0;
-			}
-			$this->count++;
-			return $ret;
-		}
-
-		// - - - - - - - - - - - - - - - - - - - - - - - - -
-
-		// QRmask
-
-		/**
-		 * Write Format Information on frame and returns the number of black bits
-		 * @param int $width frame width
-		 * @param array $frame frame
-		 * @param array $mask masking mode
-		 * @param int $level error correction level
-		 * @return int blacks
-		 */
-		 protected function writeFormatInformation($width, &$frame, $mask, $level) {
-			$blacks = 0;
-			$format = $this->getFormatInfo($mask, $level);
-			for ($i = 0; $i < 8; ++$i) {
-				if ($format & 1) {
-					$blacks += 2;
-					$v = 0x85;
-				} else {
-					$v = 0x84;
-				}
-				$frame[8][$width - 1 - $i] = chr($v);
-				if ($i < 6) {
-					$frame[$i][8] = chr($v);
-				} else {
-					$frame[$i + 1][8] = chr($v);
-				}
-				$format = $format >> 1;
-			}
-			for ($i = 0; $i < 7; ++$i) {
-			if ($format & 1) {
-				$blacks += 2;
-				$v = 0x85;
-			} else {
-				$v = 0x84;
-			}
-			$frame[$width - 7 + $i][8] = chr($v);
-			if ($i == 0) {
-				$frame[8][7] = chr($v);
-			} else {
-				$frame[8][6 - $i] = chr($v);
-			}
-			$format = $format >> 1;
-			}
-			return $blacks;
-		}
-
-		/**
-		 * mask0
-		 * @param int $x X position
-		 * @param int $y Y position
-		 * @return int mask
-		 */
-		 protected function mask0($x, $y) {
-			return ($x + $y) & 1;
-		}
-
-		/**
-		 * mask1
-		 * @param int $x X position
-		 * @param int $y Y position
-		 * @return int mask
-		 */
-		 protected function mask1($x, $y) {
-			return ($y & 1);
-		}
-
-		/**
-		 * mask2
-		 * @param int $x X position
-		 * @param int $y Y position
-		 * @return int mask
-		 */
-		 protected function mask2($x, $y) {
-			return ($x % 3);
-		}
-
-		/**
-		 * mask3
-		 * @param int $x X position
-		 * @param int $y Y position
-		 * @return int mask
-		 */
-		 protected function mask3($x, $y) {
-			return ($x + $y) % 3;
-		}
-
-		/**
-		 * mask4
-		 * @param int $x X position
-		 * @param int $y Y position
-		 * @return int mask
-		 */
-		 protected function mask4($x, $y) {
-			return (((int) ($y / 2)) + ((int) ($x / 3))) & 1;
-		}
-
-		/**
-		 * mask5
-		 * @param int $x X position
-		 * @param int $y Y position
-		 * @return int mask
-		 */
-		 protected function mask5($x, $y) {
-			return (($x * $y) & 1) + ($x * $y) % 3;
-		}
-
-		/**
-		 * mask6
-		 * @param int $x X position
-		 * @param int $y Y position
-		 * @return int mask
-		 */
-		 protected function mask6($x, $y) {
-			return ((($x * $y) & 1) + ($x * $y) % 3) & 1;
-		}
-
-		/**
-		 * mask7
-		 * @param int $x X position
-		 * @param int $y Y position
-		 * @return int mask
-		 */
-		 protected function mask7($x, $y) {
-			return ((($x * $y) % 3) + (($x + $y) & 1)) & 1;
-		}
-
-		/**
-		 * Return bitmask
-		 * @param int $maskNo mask number
-		 * @param int $width width
-		 * @param array $frame frame
-		 * @return array bitmask
-		 */
-		protected function generateMaskNo($maskNo, $width, $frame) {
-			$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
-			for ($y = 0; $y < $width; ++$y) {
-				for ($x = 0; $x < $width; ++$x) {
-					if (ord($frame[$y][$x]) & 0x80) {
-						$bitMask[$y][$x] = 0;
-					} else {
-						$maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
-						$bitMask[$y][$x] = ($maskFunc == 0) ? 1 : 0;
-					}
-				}
-			}
-			return $bitMask;
-		}
-
-		/**
-		 * makeMaskNo
-		 * @param int $maskNo
-		 * @param int $width
-		 * @param int $s
-		 * @param int $d
-		 * @param boolean $maskGenOnly
-		 * @return int b
-		 */
-		 protected function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) {
-			$b = 0;
-			$bitMask = array();
-			$bitMask = $this->generateMaskNo($maskNo, $width, $s);
-			if ($maskGenOnly) {
-				return;
-			}
-			$d = $s;
-			for ($y = 0; $y < $width; ++$y) {
-				for ($x = 0; $x < $width; ++$x) {
-					if ($bitMask[$y][$x] == 1) {
-						$d[$y][$x] = chr(ord($s[$y][$x]) ^ (int) $bitMask[$y][$x]);
-					}
-					$b += (int) (ord($d[$y][$x]) & 1);
-				}
-			}
-			return $b;
-		}
-
-		/**
-		 * makeMask
-		 * @param int $width
-		 * @param array $frame
-		 * @param int $maskNo
-		 * @param int $level
-		 * @return array mask
-		 */
-		 protected function makeMask($width, $frame, $maskNo, $level) {
-			$masked = array_fill(0, $width, str_repeat("\0", $width));
-			$this->makeMaskNo($maskNo, $width, $frame, $masked);
-			$this->writeFormatInformation($width, $masked, $maskNo, $level);
-			return $masked;
-		}
-
-		/**
-		 * calcN1N3
-		 * @param int $length
-		 * @return int demerit
-		 */
-		 protected function calcN1N3($length) {
-			$demerit = 0;
-			for ($i = 0; $i < $length; ++$i) {
-				if ($this->runLength[$i] >= 5) {
-					$demerit += (N1 + ($this->runLength[$i] - 5));
-				}
-				if ($i & 1) {
-					if (($i >= 3) and ($i < ($length - 2)) and ($this->runLength[$i] % 3 == 0)) {
-						$fact = (int) ($this->runLength[$i] / 3);
-						if (($this->runLength[$i - 2] == $fact)
-							and ($this->runLength[$i - 1] == $fact)
-							and ($this->runLength[$i + 1] == $fact)
-							and ($this->runLength[$i + 2] == $fact)) {
-							if (($this->runLength[$i - 3] < 0) or ($this->runLength[$i - 3] >= (4 * $fact))) {
-								$demerit += N3;
-							} elseif ((($i + 3) >= $length) or ($this->runLength[$i + 3] >= (4 * $fact))) {
-								$demerit += N3;
-							}
-						}
-					}
-				}
-			}
-			return $demerit;
-		}
-
-		/**
-		 * evaluateSymbol
-		 * @param int $width
-		 * @param array $frame
-		 * @return int demerit
-		 */
-		 protected function evaluateSymbol($width, $frame) {
-			$head = 0;
-			$demerit = 0;
-			for ($y = 0; $y < $width; ++$y) {
-				$head = 0;
-				$this->runLength[0] = 1;
-				$frameY = $frame[$y];
-				if ($y > 0) {
-					$frameYM = $frame[$y - 1];
-				}
-				for ($x = 0; $x < $width; ++$x) {
-					if (($x > 0) and ($y > 0)) {
-						$b22 = ord($frameY[$x]) & ord($frameY[$x - 1]) & ord($frameYM[$x]) & ord($frameYM[$x - 1]);
-						$w22 = ord($frameY[$x]) | ord($frameY[$x - 1]) | ord($frameYM[$x]) | ord($frameYM[$x - 1]);
-						if (($b22 | ($w22 ^ 1)) & 1) {
-							$demerit += N2;
-						}
-					}
-					if (($x == 0) and (ord($frameY[$x]) & 1)) {
-						$this->runLength[0] = -1;
-						$head = 1;
-						$this->runLength[$head] = 1;
-					} elseif ($x > 0) {
-						if ((ord($frameY[$x]) ^ ord($frameY[$x - 1])) & 1) {
-							$head++;
-							$this->runLength[$head] = 1;
-						} else {
-							$this->runLength[$head]++;
-						}
-					}
-				}
-				$demerit += $this->calcN1N3($head + 1);
-			}
-			for ($x = 0; $x < $width; ++$x) {
-				$head = 0;
-				$this->runLength[0] = 1;
-				for ($y = 0; $y < $width; ++$y) {
-					if (($y == 0) and (ord($frame[$y][$x]) & 1)) {
-						$this->runLength[0] = -1;
-						$head = 1;
-						$this->runLength[$head] = 1;
-					} elseif ($y > 0) {
-						if ((ord($frame[$y][$x]) ^ ord($frame[$y - 1][$x])) & 1) {
-							$head++;
-							$this->runLength[$head] = 1;
-						} else {
-							$this->runLength[$head]++;
-						}
-					}
-				}
-				$demerit += $this->calcN1N3($head + 1);
-			}
-			return $demerit;
-		}
-
-		/**
-		 * mask
-		 * @param int $width
-		 * @param array $frame
-		 * @param int $level
-		 * @return array best mask
-		 */
-		 protected function mask($width, $frame, $level) {
-			$minDemerit = PHP_INT_MAX;
-			$bestMaskNum = 0;
-			$bestMask = array();
-			$checked_masks = array(0, 1, 2, 3, 4, 5, 6, 7);
-			if (QR_FIND_FROM_RANDOM !== false) {
-				$howManuOut = 8 - (QR_FIND_FROM_RANDOM % 9);
-				for ($i = 0; $i < $howManuOut; ++$i) {
-					$remPos = rand(0, count($checked_masks) - 1);
-					unset($checked_masks[$remPos]);
-					$checked_masks = array_values($checked_masks);
-				}
-			}
-			$bestMask = $frame;
-			foreach ($checked_masks as $i) {
-				$mask = array_fill(0, $width, str_repeat("\0", $width));
-				$demerit = 0;
-				$blacks = 0;
-				$blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
-				$blacks += $this->writeFormatInformation($width, $mask, $i, $level);
-				$blacks  = (int) (100 * $blacks / ($width * $width));
-				$demerit = (int) ((int) (abs($blacks - 50) / 5) * N4);
-				$demerit += $this->evaluateSymbol($width, $mask);
-				if ($demerit < $minDemerit) {
-					$minDemerit = $demerit;
-					$bestMask = $mask;
-					$bestMaskNum = $i;
-				}
-			}
-			return $bestMask;
-		}
-
-		// - - - - - - - - - - - - - - - - - - - - - - - - -
-
-		// QRsplit
-
-		/**
-		 * Return true if the character at specified position is a number
-		 * @param string $str string
-		 * @param int $pos characted position
-		 * @return boolean true of false
-		 */
-		 protected function isdigitat($str, $pos) {
-			if ($pos >= strlen($str)) {
-				return false;
-			}
-			return ((ord($str[$pos]) >= ord('0')) && (ord($str[$pos]) <= ord('9')));
-		}
-
-		/**
-		 * Return true if the character at specified position is an alphanumeric character
-		 * @param string $str string
-		 * @param int $pos characted position
-		 * @return boolean true of false
-		 */
-		 protected function isalnumat($str, $pos) {
-			if ($pos >= strlen($str)) {
-				return false;
-			}
-			return ($this->lookAnTable(ord($str[$pos])) >= 0);
-		}
-
-		/**
-		 * identifyMode
-		 * @param int $pos
-		 * @return int mode
-		 */
-		 protected function identifyMode($pos) {
-			if ($pos >= strlen($this->dataStr)) {
-				return QR_MODE_NL;
-			}
-			$c = $this->dataStr[$pos];
-			if ($this->isdigitat($this->dataStr, $pos)) {
-				return QR_MODE_NM;
-			} elseif ($this->isalnumat($this->dataStr, $pos)) {
-				return QR_MODE_AN;
-			} elseif ($this->hint == QR_MODE_KJ) {
-				if ($pos + 1 < strlen($this->dataStr)) {
-					$d = $this->dataStr[$pos + 1];
-					$word = (ord($c) << 8) | ord($d);
-					if (($word >= 0x8140 && $word <= 0x9ffc) or ($word >= 0xe040 && $word <= 0xebbf)) {
-						return QR_MODE_KJ;
-					}
-				}
-			}
-			return QR_MODE_8B;
-		}
-
-		/**
-		 * eatNum
-		 * @return int run
-		 */
-		 protected function eatNum() {
-			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
-			$p = 0;
-			while ($this->isdigitat($this->dataStr, $p)) {
-				$p++;
-			}
-			$run = $p;
-			$mode = $this->identifyMode($p);
-			if ($mode == QR_MODE_8B) {
-				$dif = $this->estimateBitsModeNum($run) + 4 + $ln
-				+ $this->estimateBitsMode8(1)         // + 4 + l8
-				- $this->estimateBitsMode8($run + 1); // - 4 - l8
-				if ($dif > 0) {
-					return $this->eat8();
-				}
-			}
-			if ($mode == QR_MODE_AN) {
-				$dif = $this->estimateBitsModeNum($run) + 4 + $ln
-				+ $this->estimateBitsModeAn(1)        // + 4 + la
-				- $this->estimateBitsModeAn($run + 1); // - 4 - la
-				if ($dif > 0) {
-					return $this->eatAn();
-				}
-			}
-			$this->items = $this->appendNewInputItem($this->items, QR_MODE_NM, $run, str_split($this->dataStr));
-			return $run;
-		}
-
-		/**
-		 * eatAn
-		 * @return int run
-		 */
-		 protected function eatAn() {
-			$la = $this->lengthIndicator(QR_MODE_AN, $this->version);
-			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
-			$p = 0;
-			while ($this->isalnumat($this->dataStr, $p)) {
-				if ($this->isdigitat($this->dataStr, $p)) {
-					$q = $p;
-					while ($this->isdigitat($this->dataStr, $q)) {
-						$q++;
-					}
-					$dif = $this->estimateBitsModeAn($p) // + 4 + la
-					+ $this->estimateBitsModeNum($q - $p) + 4 + $ln
-					- $this->estimateBitsModeAn($q); // - 4 - la
-					if ($dif < 0) {
-						break;
-					} else {
-						$p = $q;
-					}
-				} else {
-					$p++;
-				}
-			}
-			$run = $p;
-			if (!$this->isalnumat($this->dataStr, $p)) {
-				$dif = $this->estimateBitsModeAn($run) + 4 + $la
-				+ $this->estimateBitsMode8(1) // + 4 + l8
-				- $this->estimateBitsMode8($run + 1); // - 4 - l8
-				if ($dif > 0) {
-					return $this->eat8();
-				}
-			}
-			$this->items = $this->appendNewInputItem($this->items, QR_MODE_AN, $run, str_split($this->dataStr));
-			return $run;
-		}
-
-		/**
-		 * eatKanji
-		 * @return int run
-		 */
-		 protected function eatKanji() {
-			$p = 0;
-			while ($this->identifyMode($p) == QR_MODE_KJ) {
-				$p += 2;
-			}
-			$this->items = $this->appendNewInputItem($this->items, QR_MODE_KJ, $p, str_split($this->dataStr));
-			return $p;
-		}
-
-		/**
-		 * eat8
-		 * @return int run
-		 */
-		 protected function eat8() {
-			$la = $this->lengthIndicator(QR_MODE_AN, $this->version);
-			$ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
-			$p = 1;
-			$dataStrLen = strlen($this->dataStr);
-			while ($p < $dataStrLen) {
-				$mode = $this->identifyMode($p);
-				if ($mode == QR_MODE_KJ) {
-					break;
-				}
-				if ($mode == QR_MODE_NM) {
-					$q = $p;
-					while ($this->isdigitat($this->dataStr, $q)) {
-						$q++;
-					}
-					$dif = $this->estimateBitsMode8($p) // + 4 + l8
-					+ $this->estimateBitsModeNum($q - $p) + 4 + $ln
-					- $this->estimateBitsMode8($q); // - 4 - l8
-					if ($dif < 0) {
-						break;
-					} else {
-						$p = $q;
-					}
-				} elseif ($mode == QR_MODE_AN) {
-					$q = $p;
-					while ($this->isalnumat($this->dataStr, $q)) {
-						$q++;
-					}
-					$dif = $this->estimateBitsMode8($p)  // + 4 + l8
-					+ $this->estimateBitsModeAn($q - $p) + 4 + $la
-					- $this->estimateBitsMode8($q); // - 4 - l8
-					if ($dif < 0) {
-						break;
-					} else {
-						$p = $q;
-					}
-				} else {
-					$p++;
-				}
-			}
-			$run = $p;
-			$this->items = $this->appendNewInputItem($this->items, QR_MODE_8B, $run, str_split($this->dataStr));
-			return $run;
-		}
-
-		/**
-		 * splitString
-		 */
-		 protected function splitString() {
-			while (strlen($this->dataStr) > 0) {
-				if ($this->dataStr == '') {
-					return 0;
-				}
-				$mode = $this->identifyMode(0);
-				switch ($mode) {
-					case QR_MODE_NM: {
-						$length = $this->eatNum();
-						break;
-					}
-					case QR_MODE_AN: {
-						$length = $this->eatAn();
-						break;
-					}
-					case QR_MODE_KJ: {
-						if ($this->hint == QR_MODE_KJ) {
-							$length = $this->eatKanji();
-						} else {
-							$length = $this->eat8();
-						}
-						break;
-					}
-					default: {
-						$length = $this->eat8();
-						break;
-					}
-				}
-				if ($length == 0) {
-					return 0;
-				}
-				if ($length < 0) {
-					return -1;
-				}
-				$this->dataStr = substr($this->dataStr, $length);
-			}
-		}
-
-		/**
-		 * toUpper
-		 */
-		 protected function toUpper() {
-			$stringLen = strlen($this->dataStr);
-			$p = 0;
-			while ($p < $stringLen) {
-				$mode = $this->identifyMode(substr($this->dataStr, $p));
-				if ($mode == QR_MODE_KJ) {
-					$p += 2;
-				} else {
-					if ((ord($this->dataStr[$p]) >= ord('a')) and (ord($this->dataStr[$p]) <= ord('z'))) {
-						$this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
-					}
-					$p++;
-				}
-			}
-			return $this->dataStr;
-		}
-
-		// - - - - - - - - - - - - - - - - - - - - - - - - -
-
-		// QRinputItem
-
-		/**
-		 * newInputItem
-		 * @param int $mode
-		 * @param int $size
-		 * @param array $data
-		 * @param array $bstream
-		 * @return array input item
-		 */
-		 protected function newInputItem($mode, $size, $data, $bstream = null) {
-			$setData = array_slice($data, 0, $size);
-			if (count($setData) < $size) {
-				$setData = array_merge($setData, array_fill(0, ($size - count($setData)), 0));
-			}
-			if (!$this->check($mode, $size, $setData)) {
-				return null;
-			}
-			$inputitem = array();
-			$inputitem['mode'] = $mode;
-			$inputitem['size'] = $size;
-			$inputitem['data'] = $setData;
-			$inputitem['bstream'] = $bstream;
-			return $inputitem;
-		}
-
-		/**
-		 * encodeModeNum
-		 * @param array $inputitem
-		 * @param int $version
-		 * @return array input item
-		 */
-		 protected function encodeModeNum($inputitem, $version) {
-			$words = (int) ($inputitem['size'] / 3);
-			$inputitem['bstream'] = array();
-			$val = 0x1;
-			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
-			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_NM, $version), $inputitem['size']);
-			for ($i = 0; $i < $words; ++$i) {
-				$val  = (ord($inputitem['data'][$i * 3]) - ord('0')) * 100;
-				$val += (ord($inputitem['data'][$i * 3 + 1]) - ord('0')) * 10;
-				$val += (ord($inputitem['data'][$i * 3 + 2]) - ord('0'));
-				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 10, $val);
-			}
-			if ($inputitem['size'] - $words * 3 == 1) {
-				$val = ord($inputitem['data'][$words * 3]) - ord('0');
-				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
-			} elseif (($inputitem['size'] - ($words * 3)) == 2) {
-				$val  = (ord($inputitem['data'][$words * 3]) - ord('0')) * 10;
-				$val += (ord($inputitem['data'][$words * 3 + 1]) - ord('0'));
-				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 7, $val);
-			}
-			return $inputitem;
-		}
-
-		/**
-		 * encodeModeAn
-		 * @param array $inputitem
-		 * @param int $version
-		 * @return array input item
-		 */
-		 protected function encodeModeAn($inputitem, $version) {
-			$words = (int) ($inputitem['size'] / 2);
-			$inputitem['bstream'] = array();
-			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x02);
-			$inputitem['bstream'] = $this->appendNum(v, $this->lengthIndicator(QR_MODE_AN, $version), $inputitem['size']);
-			for ($i = 0; $i < $words; ++$i) {
-				$val  = (int) $this->lookAnTable(ord($inputitem['data'][$i * 2])) * 45;
-				$val += (int) $this->lookAnTable(ord($inputitem['data'][$i * 2 + 1]));
-				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 11, $val);
-			}
-			if ($inputitem['size'] & 1) {
-				$val = $this->lookAnTable(ord($inputitem['data'][($words * 2)]));
-				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 6, $val);
-			}
-			return $inputitem;
-		}
-
-		/**
-		 * encodeMode8
-		 * @param array $inputitem
-		 * @param int $version
-		 * @return array input item
-		 */
-		 protected function encodeMode8($inputitem, $version) {
-			$inputitem['bstream'] = array();
-			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x4);
-			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_8B, $version), $inputitem['size']);
-			for ($i = 0; $i < $inputitem['size']; ++$i) {
-				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][$i]));
-			}
-			return $inputitem;
-		}
-
-		/**
-		 * encodeModeKanji
-		 * @param array $inputitem
-		 * @param int $version
-		 * @return array input item
-		 */
-		 protected function encodeModeKanji($inputitem, $version) {
-			$inputitem['bstream'] = array();
-			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x8);
-			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_KJ, $version), (int) ($inputitem['size'] / 2));
-			for ($i = 0; $i < $inputitem['size']; $i += 2) {
-				$val = (ord($inputitem['data'][$i]) << 8) | ord($inputitem['data'][$i + 1]);
-				if ($val <= 0x9ffc) {
-					$val -= 0x8140;
-				} else {
-					$val -= 0xc140;
-				}
-				$h = ($val >> 8) * 0xc0;
-				$val = ($val & 0xff) + $h;
-				$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 13, $val);
-			}
-			return $inputitem;
-		}
-
-		/**
-		 * encodeModeStructure
-		 * @param array $inputitem
-		 * @return array input item
-		 */
-		 protected function encodeModeStructure($inputitem) {
-			$inputitem['bstream'] = array();
-			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x03);
-			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][1]) - 1);
-			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][0]) - 1);
-			$inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][2]));
-			return $inputitem;
-		}
-
-		/**
-		 * encodeBitStream
-		 * @param array $inputitem
-		 * @param int $version
-		 * @return array input item
-		 */
-		 protected function encodeBitStream($inputitem, $version) {
-			$inputitem['bstream'] = array();
-			$words = $this->maximumWords($inputitem['mode'], $version);
-			if ($inputitem['size'] > $words) {
-				$st1 = $this->newInputItem($inputitem['mode'], $words, $inputitem['data']);
-				$st2 = $this->newInputItem($inputitem['mode'], $inputitem['size'] - $words, array_slice($inputitem['data'], $words));
-				$st1 = $this->encodeBitStream($st1, $version);
-				$st2 = $this->encodeBitStream($st2, $version);
-				$inputitem['bstream'] = array();
-				$inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st1['bstream']);
-				$inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st2['bstream']);
-			} else {
-				switch ($inputitem['mode']) {
-					case QR_MODE_NM: {
-						$inputitem = $this->encodeModeNum($inputitem, $version);
-						break;
-					}
-					case QR_MODE_AN: {
-						$inputitem = $this->encodeModeAn($inputitem, $version);
-						break;
-					}
-					case QR_MODE_8B: {
-						$inputitem = $this->encodeMode8($inputitem, $version);
-						break;
-					}
-					case QR_MODE_KJ: {
-						$inputitem = $this->encodeModeKanji($inputitem, $version);
-						break;
-					}
-					case QR_MODE_ST: {
-						$inputitem = $this->encodeModeStructure($inputitem);
-						break;
-					}
-					default: {
-						break;
-					}
-				}
-			}
-			return $inputitem;
-		}
-
-		// - - - - - - - - - - - - - - - - - - - - - - - - -
-
-		// QRinput
-
-		/**
-		 * Append data to an input object.
-		 * The data is copied and appended to the input object.
-		 * @param array items input items
-		 * @param int $mode encoding mode.
-		 * @param int $size size of data (byte).
-		 * @param array $data array of input data.
-		 * @return items
-		 *
-		 */
-		protected function appendNewInputItem($items, $mode, $size, $data) {
-			$items[] = $this->newInputItem($mode, $size, $data);
-			return $items;
-		}
-
-		/**
-		 * insertStructuredAppendHeader
-		 * @param array $items
-		 * @param int $size
-		 * @param int $index
-		 * @param int $parity
-		 * @return array items
-		 */
-		 protected function insertStructuredAppendHeader($items, $size, $index, $parity) {
-			if ($size > MAX_STRUCTURED_SYMBOLS) {
-				return -1;
-			}
-			if (($index <= 0) or ($index > MAX_STRUCTURED_SYMBOLS)) {
-				return -1;
-			}
-			$buf = array($size, $index, $parity);
-			$entry = $this->newInputItem(QR_MODE_ST, 3, buf);
-			array_unshift($items, $entry);
-			return $items;
-		}
-
-		/**
-		 * calcParity
-		 * @param array $items
-		 * @return int parity
-		 */
-		 protected function calcParity($items) {
-			$parity = 0;
-			foreach ($items as $item) {
-				if ($item['mode'] != QR_MODE_ST) {
-					for ($i = $item['size'] - 1; $i >= 0; --$i) {
-						$parity ^= $item['data'][$i];
-					}
-				}
-			}
-			return $parity;
-		}
-
-		/**
-		 * checkModeNum
-		 * @param int $size
-		 * @param array $data
-		 * @return boolean true or false
-		 */
-		 protected function checkModeNum($size, $data) {
-			for ($i = 0; $i < $size; ++$i) {
-				if ((ord($data[$i]) < ord('0')) or (ord($data[$i]) > ord('9'))) {
-					return false;
-				}
-			}
-			return true;
-		}
-
-		/**
-		 * estimateBitsModeNum
-		 * @param int $size
-		 * @return int number of bits
-		 */
-		 protected function estimateBitsModeNum($size) {
-			$w = (int) $size / 3;
-			$bits = $w * 10;
-			switch ($size - $w * 3) {
-				case 1: {
-					$bits += 4;
-					break;
-				}
-				case 2: {
-					$bits += 7;
-					break;
-				}
-				default: {
-					break;
-				}
-			}
-			return $bits;
-		}
-
-		/**
-		 * Look up the alphabet-numeric convesion table (see JIS X0510:2004, pp.19).
-		 * @param int $c character value
-		 * @return value
-		 */
-		protected function lookAnTable($c) {
-			return (($c > 127) ?-1 : $this->anTable[$c]);
-		}
-
-		/**
-		 * checkModeAn
-		 * @param int $size
-		 * @param array $data
-		 * @return boolean true or false
-		 */
-		 protected function checkModeAn($size, $data) {
-			for ($i = 0; $i < $size; ++$i) {
-				if ($this->lookAnTable(ord($data[$i])) == -1) {
-					return false;
-				}
-			}
-			return true;
-		}
-
-		/**
-		 * estimateBitsModeAn
-		 * @param int $size
-		 * @return int number of bits
-		 */
-		 protected function estimateBitsModeAn($size) {
-			$w = (int) ($size / 2);
-			$bits = $w * 11;
-			if ($size & 1) {
-				$bits += 6;
-			}
-			return $bits;
-		}
-
-		/**
-		 * estimateBitsMode8
-		 * @param int $size
-		 * @return int number of bits
-		 */
-		 protected function estimateBitsMode8($size) {
-			return $size * 8;
-		}
-
-		/**
-		 * estimateBitsModeKanji
-		 * @param int $size
-		 * @return int number of bits
-		 */
-		 protected function estimateBitsModeKanji($size) {
-			return (int) (($size / 2) * 13);
-		}
-
-		/**
-		 * checkModeKanji
-		 * @param int $size
-		 * @param array $data
-		 * @return boolean true or false
-		 */
-		 protected function checkModeKanji($size, $data) {
-			if ($size & 1) {
-				return false;
-			}
-			for ($i = 0; $i < $size; $i += 2) {
-				$val = (ord($data[$i]) << 8) | ord($data[$i + 1]);
-				if (($val < 0x8140) or (($val > 0x9ffc) and ($val < 0xe040)) or ($val > 0xebbf)) {
-					return false;
-				}
-			}
-			return true;
-		}
-
-		/**
-		 * Validate the input data.
-		 * @param int $mode encoding mode.
-		 * @param int $size size of data (byte).
-		 * @param array data data to validate
-		 * @return boolean true in case of valid data, false otherwise
-		 */
-		protected function check($mode, $size, $data) {
-			if ($size <= 0) {
-				return false;
-			}
-			switch ($mode) {
-				case QR_MODE_NM: {
-					return $this->checkModeNum($size, $data);
-				}
-				case QR_MODE_AN: {
-					return $this->checkModeAn($size, $data);
-				}
-				case QR_MODE_KJ: {
-					return $this->checkModeKanji($size, $data);
-				}
-				case QR_MODE_8B: {
-					return true;
-				}
-				case QR_MODE_ST: {
-					return true;
-				}
-				default: {
-					break;
-				}
-			}
-			return false;
-		}
-
-		/**
-		 * estimateBitStreamSize
-		 * @param array $items
-		 * @param int $version
-		 * @return int bits
-		 */
-		 protected function estimateBitStreamSize($items, $version) {
-			$bits = 0;
-			if ($version == 0) {
-				$version = 1;
-			}
-			foreach ($items as $item) {
-				switch ($item['mode']) {
-					case QR_MODE_NM: {
-						$bits = $this->estimateBitsModeNum($item['size']);
-						break;
-					}
-					case QR_MODE_AN: {
-						$bits = $this->estimateBitsModeAn($item['size']);
-						break;
-					}
-					case QR_MODE_8B: {
-						$bits = $this->estimateBitsMode8($item['size']);
-						break;
-					}
-					case QR_MODE_KJ: {
-						$bits = $this->estimateBitsModeKanji($item['size']);
-						break;
-					}
-					case QR_MODE_ST: {
-						return STRUCTURE_HEADER_BITS;
-					}
-					default: {
-						return 0;
-					}
-				}
-				$l = $this->lengthIndicator($item['mode'], $version);
-				$m = 1 << $l;
-				$num = (int) (($item['size'] + $m - 1) / $m);
-				$bits += $num * (4 + $l);
-			}
-			return $bits;
-		}
-
-		/**
-		 * estimateVersion
-		 * @param array $items
-		 * @return int version
-		 */
-		 protected function estimateVersion($items) {
-			$version = 0;
-			$prev = 0;
-			do {
-				$prev = $version;
-				$bits = $this->estimateBitStreamSize($items, $prev);
-				$version = $this->getMinimumVersion((int) (($bits + 7) / 8), $this->level);
-				if ($version < 0) {
-					return -1;
-				}
-			} while ($version > $prev);
-			return $version;
-		}
-
-		/**
-		 * lengthOfCode
-		 * @param int $mode
-		 * @param int $version
-		 * @param int $bits
-		 * @return int size
-		 */
-		 protected function lengthOfCode($mode, $version, $bits) {
-			$payload = $bits - 4 - $this->lengthIndicator($mode, $version);
-			switch ($mode) {
-				case QR_MODE_NM: {
-					$chunks = (int) ($payload / 10);
-					$remain = $payload - $chunks * 10;
-					$size = $chunks * 3;
-					if ($remain >= 7) {
-						$size += 2;
-					} elseif ($remain >= 4) {
-						$size += 1;
-					}
-					break;
-				}
-				case QR_MODE_AN: {
-					$chunks = (int) ($payload / 11);
-					$remain = $payload - $chunks * 11;
-					$size = $chunks * 2;
-					if ($remain >= 6) {
-						++$size;
-					}
-					break;
-				}
-				case QR_MODE_8B: {
-					$size = (int) ($payload / 8);
-					break;
-				}
-				case QR_MODE_KJ: {
-					$size = (int) (($payload / 13) * 2);
-					break;
-				}
-				case QR_MODE_ST: {
-					$size = (int) ($payload / 8);
-					break;
-				}
-				default: {
-					$size = 0;
-					break;
-				}
-			}
-			$maxsize = $this->maximumWords($mode, $version);
-			if ($size < 0) {
-				$size = 0;
-			}
-			if ($size > $maxsize) {
-				$size = $maxsize;
-			}
-			return $size;
-		}
-
-		/**
-		 * createBitStream
-		 * @param array $items
-		 * @return array of items and total bits
-		 */
-		 protected function createBitStream($items) {
-			$total = 0;
-			foreach ($items as $key => $item) {
-				$items[$key] = $this->encodeBitStream($item, $this->version);
-				$bits = count($items[$key]['bstream']);
-				$total += $bits;
-			}
-			return array($items, $total);
-		}
-
-		/**
-		 * convertData
-		 * @param array $items
-		 * @return array items
-		 */
-		 protected function convertData($items) {
-			$ver = $this->estimateVersion($items);
-			if ($ver > $this->version) {
-				$this->version = $ver;
-			}
-			for (;;) {
-				$cbs = $this->createBitStream($items);
-				$items = $cbs[0];
-				$bits = $cbs[1];
-				if ($bits < 0) {
-					return -1;
-				}
-				$ver = $this->getMinimumVersion((int) (($bits + 7) / 8), $this->level);
-				if ($ver < 0) {
-					return -1;
-				} elseif ($ver > $this->version) {
-					$this->version = $ver;
-				} else {
-					break;
-				}
-			}
-			return $items;
-		}
-
-		/**
-		 * Append Padding Bit to bitstream
-		 * @param array $bstream
-		 * @return array bitstream
-		 */
-		 protected function appendPaddingBit($bstream) {
-			$bits = count($bstream);
-			$maxwords = $this->getDataLength($this->version, $this->level);
-			$maxbits = $maxwords * 8;
-			if ($maxbits == $bits) {
-				return 0;
-			}
-			if ($maxbits - $bits < 5) {
-				return $this->appendNum($bstream, $maxbits - $bits, 0);
-			}
-			$bits += 4;
-			$words = (int) (($bits + 7) / 8);
-			$padding = array();
-			$padding = $this->appendNum($padding, $words * 8 - $bits + 4, 0);
-			$padlen = $maxwords - $words;
-			if ($padlen > 0) {
-				$padbuf = array();
-				for ($i = 0; $i < $padlen; ++$i) {
-					$padbuf[$i] = ($i & 1) ? 0x11 : 0xec;
-				}
-				$padding = $this->appendBytes($padding, $padlen, $padbuf);
-			}
-			return $this->appendBitstream($bstream, $padding);
-		}
-
-		/**
-		 * mergeBitStream
-		 * @param array $bstream
-		 * @return array bitstream
-		 */
-		 protected function mergeBitStream($items) {
-			$items = $this->convertData($items);
-			$bstream = array();
-			foreach ($items as $item) {
-				$bstream = $this->appendBitstream($bstream, $item['bstream']);
-			}
-			return $bstream;
-		}
-
-		/**
-		 * Returns a stream of bits.
-		 * @param int $items
-		 * @return array padded merged byte stream
-		 */
-		protected function getBitStream($items) {
-			$bstream = $this->mergeBitStream($items);
-			return $this->appendPaddingBit($bstream);
-		}
-
-		/**
-		 * Pack all bit streams padding bits into a byte array.
-		 * @param int $items
-		 * @return array padded merged byte stream
-		 */
-		protected function getByteStream($items) {
-			$bstream = $this->getBitStream($items);
-			return $this->bitstreamToByte($bstream);
-		}
-
-		// - - - - - - - - - - - - - - - - - - - - - - - - -
-
-		// QRbitstream
-
-		/**
-		 * Return an array with zeros
-		 * @param int $setLength array size
-		 * @return array
-		 */
-		 protected function allocate($setLength) {
-			return array_fill(0, $setLength, 0);
-		}
-
-		/**
-		 * Return new bitstream from number
-		 * @param int $bits number of bits
-		 * @param int $num number
-		 * @return array bitstream
-		 */
-		 protected function newFromNum($bits, $num) {
-			$bstream = $this->allocate($bits);
-			$mask = 1 << ($bits - 1);
-			for ($i = 0; $i < $bits; ++$i) {
-				if ($num & $mask) {
-					$bstream[$i] = 1;
-				} else {
-					$bstream[$i] = 0;
-				}
-				$mask = $mask >> 1;
-			}
-			return $bstream;
-		}
-
-		/**
-		 * Return new bitstream from bytes
-		 * @param int $size size
-		 * @param array $data bytes
-		 * @return array bitstream
-		 */
-		 protected function newFromBytes($size, $data) {
-			$bstream = $this->allocate($size * 8);
-			$p = 0;
-			for ($i = 0; $i < $size; ++$i) {
-				$mask = 0x80;
-				for ($j = 0; $j < 8; ++$j) {
-					if ($data[$i] & $mask) {
-						$bstream[$p] = 1;
-					} else {
-						$bstream[$p] = 0;
-					}
-					$p++;
-					$mask = $mask >> 1;
-				}
-			}
-			return $bstream;
-		}
-
-		/**
-		 * Append one bitstream to another
-		 * @param array $bitstream original bitstream
-		 * @param array $append bitstream to append
-		 * @return array bitstream
-		 */
-		 protected function appendBitstream($bitstream, $append) {
-			if ((!is_array($append)) or (count($append) == 0)) {
-				return $bitstream;
-			}
-			if (count($bitstream) == 0) {
-				return $append;
-			}
-			return array_values(array_merge($bitstream, $append));
-		}
-
-		/**
-		 * Append one bitstream created from number to another
-		 * @param array $bitstream original bitstream
-		 * @param int $bits number of bits
-		 * @param int $num number
-		 * @return array bitstream
-		 */
-		 protected function appendNum($bitstream, $bits, $num) {
-			if ($bits == 0) {
-				return 0;
-			}
-			$b = $this->newFromNum($bits, $num);
-			return $this->appendBitstream($bitstream, $b);
-		}
-
-		/**
-		 * Append one bitstream created from bytes to another
-		 * @param array $bitstream original bitstream
-		 * @param int $size size
-		 * @param array $data bytes
-		 * @return array bitstream
-		 */
-		 protected function appendBytes($bitstream, $size, $data) {
-			if ($size == 0) {
-				return 0;
-			}
-			$b = $this->newFromBytes($size, $data);
-			return $this->appendBitstream($bitstream, $b);
-		}
-
-		/**
-		 * Convert bitstream to bytes
-		 * @param array $bitstream original bitstream
-		 * @return array of bytes
-		 */
-		 protected function bitstreamToByte($bstream) {
-			$size = count($bstream);
-			if ($size == 0) {
-				return array();
-			}
-			$data = array_fill(0, (int) (($size + 7) / 8), 0);
-			$bytes = (int) ($size / 8);
-			$p = 0;
-			for ($i = 0; $i < $bytes; $i++) {
-				$v = 0;
-				for ($j = 0; $j < 8; $j++) {
-					$v = $v << 1;
-					$v |= $bstream[$p];
-					$p++;
-				}
-				$data[$i] = $v;
-			}
-			if ($size & 7) {
-				$v = 0;
-				for ($j = 0; $j < ($size & 7); $j++) {
-					$v = $v << 1;
-					$v |= $bstream[$p];
-					$p++;
-				}
-				$data[$bytes] = $v;
-			}
-			return $data;
-		}
-
-		// - - - - - - - - - - - - - - - - - - - - - - - - -
-
-		// QRspec
-
-		/**
-		 * Replace a value on the array at the specified position
-		 * @param array $srctab
-		 * @param int $x X position
-		 * @param int $y Y position
-		 * @param string $repl value to replace
-		 * @param int $replLen length of the repl string
-		 * @return array srctab
-		 */
-		 protected function qrstrset($srctab, $x, $y, $repl, $replLen = false) {
-			$srctab[$y] = substr_replace($srctab[$y], ($replLen !== false) ?substr($repl, 0, $replLen) : $repl, $x, ($replLen !== false) ? $replLen : strlen($repl));
-			return $srctab;
-		}
-
-		/**
-		 * Return maximum data code length (bytes) for the version.
-		 * @param int $version version
-		 * @param int $level error correction level
-		 * @return int maximum size (bytes)
-		 */
-		protected function getDataLength($version, $level) {
-			return $this->capacity[$version][QRCAP_WORDS] - $this->capacity[$version][QRCAP_EC][$level];
-		}
-
-		/**
-		 * Return maximum error correction code length (bytes) for the version.
-		 * @param int $version version
-		 * @param int $level error correction level
-		 * @return int ECC size (bytes)
-		 */
-		protected function getECCLength($version, $level) {
-			return $this->capacity[$version][QRCAP_EC][$level];
-		}
-
-		/**
-		 * Return the width of the symbol for the version.
-		 * @param int $version version
-		 * @return int width
-		 */
-		protected function getWidth($version) {
-			return $this->capacity[$version][QRCAP_WIDTH];
-		}
-
-		/**
-		 * Return the numer of remainder bits.
-		 * @param int $version version
-		 * @return int number of remainder bits
-		 */
-		protected function getRemainder($version) {
-			return $this->capacity[$version][QRCAP_REMINDER];
-		}
-
-		/**
-		 * Return a version number that satisfies the input code length.
-		 * @param int $size input code length (byte)
-		 * @param int $level error correction level
-		 * @return int version number
-		 */
-		protected function getMinimumVersion($size, $level) {
-			for ($i = 1; $i <= QRSPEC_VERSION_MAX; ++$i) {
-				$words = $this->capacity[$i][QRCAP_WORDS] - $this->capacity[$i][QRCAP_EC][$level];
-				if ($words >= $size) {
-					return $i;
-				}
-			}
-			return -1;
-		}
-
-		/**
-		 * Return the size of length indicator for the mode and version.
-		 * @param int $mode encoding mode
-		 * @param int $version version
-		 * @return int the size of the appropriate length indicator (bits).
-		 */
-		protected function lengthIndicator($mode, $version) {
-			if ($mode == QR_MODE_ST) {
-				return 0;
-			}
-			if ($version <= 9) {
-				$l = 0;
-			} elseif ($version <= 26) {
-				$l = 1;
-			} else {
-				$l = 2;
-			}
-			return $this->lengthTableBits[$mode][$l];
-		}
-
-		/**
-		 * Return the maximum length for the mode and version.
-		 * @param int $mode encoding mode
-		 * @param int $version version
-		 * @return int the maximum length (bytes)
-		 */
-		protected function maximumWords($mode, $version) {
-			if ($mode == QR_MODE_ST) {
-				return 3;
-			}
-			if ($version <= 9) {
-				$l = 0;
-			} else if ($version <= 26) {
-				$l = 1;
-			} else {
-				$l = 2;
-			}
-			$bits = $this->lengthTableBits[$mode][$l];
-			$words = (1 << $bits) - 1;
-			if ($mode == QR_MODE_KJ) {
-				$words *= 2; // the number of bytes is required
-			}
-			return $words;
-		}
-
-		/**
-		 * Return an array of ECC specification.
-		 * @param int $version version
-		 * @param int $level error correction level
-		 * @param array $spec an array of ECC specification contains as following: {# of type1 blocks, # of data code, # of ecc code, # of type2 blocks, # of data code}
-		 * @return array spec
-		 */
-		protected function getEccSpec($version, $level, $spec) {
-			if (count($spec) < 5) {
-				$spec = array(0, 0, 0, 0, 0);
-			}
-			$b1 = $this->eccTable[$version][$level][0];
-			$b2 = $this->eccTable[$version][$level][1];
-			$data = $this->getDataLength($version, $level);
-			$ecc = $this->getECCLength($version, $level);
-			if ($b2 == 0) {
-				$spec[0] = $b1;
-				$spec[1] = (int) ($data / $b1);
-				$spec[2] = (int) ($ecc / $b1);
-				$spec[3] = 0;
-				$spec[4] = 0;
-			} else {
-				$spec[0] = $b1;
-				$spec[1] = (int) ($data / ($b1 + $b2));
-				$spec[2] = (int) ($ecc / ($b1 + $b2));
-				$spec[3] = $b2;
-				$spec[4] = $spec[1] + 1;
-			}
-			return $spec;
-		}
-
-		/**
-		 * Put an alignment marker.
-		 * @param array $frame frame
-		 * @param int $width width
-		 * @param int $ox X center coordinate of the pattern
-		 * @param int $oy Y center coordinate of the pattern
-		 * @return array frame
-		 */
-		protected function putAlignmentMarker($frame, $ox, $oy) {
-			$finder = array(
-				"\xa1\xa1\xa1\xa1\xa1",
-				"\xa1\xa0\xa0\xa0\xa1",
-				"\xa1\xa0\xa1\xa0\xa1",
-				"\xa1\xa0\xa0\xa0\xa1",
-				"\xa1\xa1\xa1\xa1\xa1"
-				);
-			$yStart = $oy - 2;
-			$xStart = $ox - 2;
-			for ($y = 0; $y < 5; $y++) {
-				$frame = $this->qrstrset($frame, $xStart, $yStart + $y, $finder[$y]);
-			}
-			return $frame;
-		}
-
-		/**
-		 * Put an alignment pattern.
-		 * @param int $version version
-		 * @param array $fram frame
-		 * @param int $width width
-		 * @return array frame
-		 */
-		 protected function putAlignmentPattern($version, $frame, $width) {
-			if ($version < 2) {
-				return $frame;
-			}
-			$d = $this->alignmentPattern[$version][1] - $this->alignmentPattern[$version][0];
-			if ($d < 0) {
-				$w = 2;
-			} else {
-				$w = (int) (($width - $this->alignmentPattern[$version][0]) / $d + 2);
-			}
-			if ($w * $w - 3 == 1) {
-				$x = $this->alignmentPattern[$version][0];
-				$y = $this->alignmentPattern[$version][0];
-				$frame = $this->putAlignmentMarker($frame, $x, $y);
-				return $frame;
-			}
-			$cx = $this->alignmentPattern[$version][0];
-			$wo = $w - 1;
-			for ($x = 1; $x < $wo; ++$x) {
-				$frame = $this->putAlignmentMarker($frame, 6, $cx);
-				$frame = $this->putAlignmentMarker($frame, $cx, 6);
-				$cx += $d;
-			}
-			$cy = $this->alignmentPattern[$version][0];
-			for ($y = 0; $y < $wo; ++$y) {
-				$cx = $this->alignmentPattern[$version][0];
-				for ($x = 0; $x < $wo; ++$x) {
-					$frame = $this->putAlignmentMarker($frame, $cx, $cy);
-					$cx += $d;
-				}
-				$cy += $d;
-			}
-			return $frame;
-		}
-
-		/**
-		 * Return BCH encoded version information pattern that is used for the symbol of version 7 or greater. Use lower 18 bits.
-		 * @param int $version version
-		 * @return BCH encoded version information pattern
-		 */
-		protected function getVersionPattern($version) {
-			if (($version < 7) or ($version > QRSPEC_VERSION_MAX)) {
-				return 0;
-			}
-			return $this->versionPattern[($version - 7)];
-		}
-
-		/**
-		 * Return BCH encoded format information pattern.
-		 * @param array $mask
-		 * @param int $level error correction level
-		 * @return BCH encoded format information pattern
-		 */
-		protected function getFormatInfo($mask, $level) {
-			if (($mask < 0) or ($mask > 7)) {
-				return 0;
-			}
-			if (($level < 0) or ($level > 3)) {
-				return 0;
-			}
-			return $this->formatInfo[$level][$mask];
-		}
-
-		/**
-		 * Put a finder pattern.
-		 * @param array $frame frame
-		 * @param int $width width
-		 * @param int $ox X center coordinate of the pattern
-		 * @param int $oy Y center coordinate of the pattern
-		 * @return array frame
-		 */
-		protected function putFinderPattern($frame, $ox, $oy) {
-			$finder = array(
-			"\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
-			"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
-			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
-			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
-			"\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
-			"\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
-			"\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
-			);
-			for ($y = 0; $y < 7; $y++) {
-				$frame = $this->qrstrset($frame, $ox, ($oy + $y), $finder[$y]);
-			}
-			return $frame;
-		}
-
-		/**
-		 * Return a copy of initialized frame.
-		 * @param int $version version
-		 * @return Array of unsigned char.
-		 */
-		protected function createFrame($version) {
-			$width = $this->capacity[$version][QRCAP_WIDTH];
-			$frameLine = str_repeat("\0", $width);
-			$frame = array_fill(0, $width, $frameLine);
-			// Finder pattern
-			$frame = $this->putFinderPattern($frame, 0, 0);
-			$frame = $this->putFinderPattern($frame, $width - 7, 0);
-			$frame = $this->putFinderPattern($frame, 0, $width - 7);
-			// Separator
-			$yOffset = $width - 7;
-			for ($y = 0; $y < 7; ++$y) {
-				$frame[$y][7] = "\xc0";
-				$frame[$y][$width - 8] = "\xc0";
-				$frame[$yOffset][7] = "\xc0";
-				++$yOffset;
-			}
-			$setPattern = str_repeat("\xc0", 8);
-			$frame = $this->qrstrset($frame, 0, 7, $setPattern);
-			$frame = $this->qrstrset($frame, $width - 8, 7, $setPattern);
-			$frame = $this->qrstrset($frame, 0, $width - 8, $setPattern);
-			// Format info
-			$setPattern = str_repeat("\x84", 9);
-			$frame = $this->qrstrset($frame, 0, 8, $setPattern);
-			$frame = $this->qrstrset($frame, $width - 8, 8, $setPattern, 8);
-			$yOffset = $width - 8;
-			for ($y = 0; $y < 8; ++$y, ++$yOffset) {
-				$frame[$y][8] = "\x84";
-				$frame[$yOffset][8] = "\x84";
-			}
-			// Timing pattern
-			$wo = $width - 15;
-			for ($i = 1; $i < $wo; ++$i) {
-				$frame[6][7 + $i] = chr(0x90 | ($i & 1));
-				$frame[7 + $i][6] = chr(0x90 | ($i & 1));
-			}
-			// Alignment pattern
-			$frame = $this->putAlignmentPattern($version, $frame, $width);
-			// Version information
-			if ($version >= 7) {
-				$vinf = $this->getVersionPattern($version);
-				$v = $vinf;
-				for ($x = 0; $x < 6; ++$x) {
-					for ($y = 0; $y < 3; ++$y) {
-						$frame[($width - 11) + $y][$x] = chr(0x88 | ($v & 1));
-						$v = $v >> 1;
-					}
-				}
-				$v = $vinf;
-				for ($y = 0; $y < 6; ++$y) {
-					for ($x = 0; $x < 3; ++$x) {
-						$frame[$y][$x + ($width - 11)] = chr(0x88 | ($v & 1));
-						$v = $v >> 1;
-					}
-				}
-			}
-			// and a little bit...
-			$frame[$width - 8][8] = "\x81";
-			return $frame;
-		}
-
-		/**
-		 * Set new frame for the specified version.
-		 * @param int $version version
-		 * @return Array of unsigned char.
-		 */
-		protected function newFrame($version) {
-			if (($version < 1) or ($version > QRSPEC_VERSION_MAX)) {
-				return null;
-			}
-			if (!isset($this->frames[$version])) {
-				$this->frames[$version] = $this->createFrame($version);
-			}
-			if (is_null($this->frames[$version])) {
-				return null;
-			}
-			return $this->frames[$version];
-		}
-
-		/**
-		 * Return block number 0
-		 * @param array $spec
-		 * @return int value
-		 */
-		 protected function rsBlockNum($spec) {
-			return ($spec[0] + $spec[3]);
-		}
-
-		/**
-		* Return block number 1
-		 * @param array $spec
-		 * @return int value
-		 */
-		 protected function rsBlockNum1($spec) {
-			return $spec[0];
-		}
-
-		/**
-		 * Return data codes 1
-		 * @param array $spec
-		 * @return int value
-		 */
-		 protected function rsDataCodes1($spec) {
-			return $spec[1];
-		}
-
-		/**
-		 * Return ecc codes 1
-		 * @param array $spec
-		 * @return int value
-		 */
-		 protected function rsEccCodes1($spec) {
-			return $spec[2];
-		}
-
-		/**
-		 * Return block number 2
-		 * @param array $spec
-		 * @return int value
-		 */
-		 protected function rsBlockNum2($spec) {
-			return $spec[3];
-		}
-
-		/**
-		 * Return data codes 2
-		 * @param array $spec
-		 * @return int value
-		 */
-		 protected function rsDataCodes2($spec) {
-			return $spec[4];
-		}
-
-		/**
-		 * Return ecc codes 2
-		 * @param array $spec
-		 * @return int value
-		 */
-		 protected function rsEccCodes2($spec) {
-			return $spec[2];
-		}
-
-		/**
-		 * Return data length
-		 * @param array $spec
-		 * @return int value
-		 */
-		 protected function rsDataLength($spec) {
-			return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);
-		}
-
-		/**
-		 * Return ecc length
-		 * @param array $spec
-		 * @return int value
-		 */
-		 protected function rsEccLength($spec) {
-			return ($spec[0] + $spec[3]) * $spec[2];
-		}
-
-		// - - - - - - - - - - - - - - - - - - - - - - - - -
-
-		// QRrs
-
-		/**
-		 * Initialize a Reed-Solomon codec and add it to existing rsitems
-		 * @param int $symsize symbol size, bits
-		 * @param int $gfpoly  Field generator polynomial coefficients
-		 * @param int $fcr  first root of RS code generator polynomial, index form
-		 * @param int $prim  primitive element to generate polynomial roots
-		 * @param int $nroots RS code generator polynomial degree (number of roots)
-		 * @param int $pad  padding bytes at front of shortened block
-		 * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
-		 */
-		 protected function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
-			foreach ($this->rsitems as $rs) {
-				if (($rs['pad'] != $pad) or ($rs['nroots'] != $nroots) or ($rs['mm'] != $symsize)
-					or ($rs['gfpoly'] != $gfpoly) or ($rs['fcr'] != $fcr) or ($rs['prim'] != $prim)) {
-					continue;
-				}
-				return $rs;
-			}
-			$rs = $this->init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
-			array_unshift($this->rsitems, $rs);
-			return $rs;
-		}
-
-		// - - - - - - - - - - - - - - - - - - - - - - - - -
-
-		// QRrsItem
-
-		/**
-		 * modnn
-		 * @param array RS values
-		 * @param int $x X position
-		 * @return int X osition
-		 */
-		 protected function modnn($rs, $x) {
-			while ($x >= $rs['nn']) {
-				$x -= $rs['nn'];
-				$x = ($x >> $rs['mm']) + ($x & $rs['nn']);
-			}
-			return $x;
-		}
-
-		/**
-		 * Initialize a Reed-Solomon codec and returns an array of values.
-		 * @param int $symsize symbol size, bits
-		 * @param int $gfpoly  Field generator polynomial coefficients
-		 * @param int $fcr  first root of RS code generator polynomial, index form
-		 * @param int $prim  primitive element to generate polynomial roots
-		 * @param int $nroots RS code generator polynomial degree (number of roots)
-		 * @param int $pad  padding bytes at front of shortened block
-		 * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
-		 */
-		protected function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
-			// Based on Reed solomon encoder by Phil Karn, KA9Q (GNU-LGPLv2)
-			$rs = null;
-			// Check parameter ranges
-			if (($symsize < 0) or ($symsize > 8)) {
-				return $rs;
-			}
-			if (($fcr < 0) or ($fcr >= (1 << $symsize))) {
-				return $rs;
-			}
-			if (($prim <= 0) or ($prim >= (1 << $symsize))) {
-				return $rs;
-			}
-			if (($nroots < 0) or ($nroots >= (1 << $symsize))) {
-				return $rs;
-			}
-			if (($pad < 0) or ($pad >= ((1 << $symsize) - 1 - $nroots))) {
-				return $rs;
-			}
-			$rs = array();
-			$rs['mm'] = $symsize;
-			$rs['nn'] = (1 << $symsize) - 1;
-			$rs['pad'] = $pad;
-			$rs['alpha_to'] = array_fill(0, ($rs['nn'] + 1), 0);
-			$rs['index_of'] = array_fill(0, ($rs['nn'] + 1), 0);
-			// PHP style macro replacement ;)
-			$NN = & $rs['nn'];
-			$A0 = & $NN;
-			// Generate Galois field lookup tables
-			$rs['index_of'][0] = $A0; // log(zero) = -inf
-			$rs['alpha_to'][$A0] = 0; // alpha**-inf = 0
-			$sr = 1;
-			for ($i = 0; $i < $rs['nn']; ++$i) {
-				$rs['index_of'][$sr] = $i;
-				$rs['alpha_to'][$i] = $sr;
-				$sr <<= 1;
-				if ($sr & (1 << $symsize)) {
-					$sr ^= $gfpoly;
-				}
-				$sr &= $rs['nn'];
-			}
-			if ($sr != 1) {
-				// field generator polynomial is not primitive!
-				return null;
-			}
-			// Form RS code generator polynomial from its roots
-			$rs['genpoly'] = array_fill(0, ($nroots + 1), 0);
-			$rs['fcr'] = $fcr;
-			$rs['prim'] = $prim;
-			$rs['nroots'] = $nroots;
-			$rs['gfpoly'] = $gfpoly;
-			// Find prim-th root of 1, used in decoding
-			for ($iprim = 1; ($iprim % $prim) != 0; $iprim += $rs['nn']) {
-				; // intentional empty-body loop!
-			}
-			$rs['iprim'] = (int) ($iprim / $prim);
-			$rs['genpoly'][0] = 1;
-
-
-			for ($i = 0, $root = $fcr * $prim; $i < $nroots; $i++, $root += $prim) {
-				$rs['genpoly'][$i + 1] = 1;
-				// Multiply rs->genpoly[] by  @**(root + x)
-				for ($j = $i; $j > 0; --$j) {
-					if ($rs['genpoly'][$j] != 0) {
-						$rs['genpoly'][$j] = $rs['genpoly'][$j - 1] ^ $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][$j]] + $root)];
-					} else {
-						$rs['genpoly'][$j] = $rs['genpoly'][$j - 1];
-					}
-				}
-				// rs->genpoly[0] can never be zero
-				$rs['genpoly'][0] = $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][0]] + $root)];
-			}
-			// convert rs->genpoly[] to index form for quicker encoding
-			for ($i = 0; $i <= $nroots; ++$i) {
-				$rs['genpoly'][$i] = $rs['index_of'][$rs['genpoly'][$i]];
-			}
-			return $rs;
-		}
-
-		/**
-		 * Encode a Reed-Solomon codec and returns the parity array
-		 * @param array $rs RS values
-		 * @param array $data data
-		 * @param array $parity parity
-		 * @return parity array
-		 */
-		 protected function encode_rs_char($rs, $data, $parity) {
-			$MM       = & $rs['mm']; // bits per symbol
-			$NN       = & $rs['nn']; // the total number of symbols in a RS block
-			$ALPHA_TO = & $rs['alpha_to']; // the address of an array of NN elements to convert Galois field elements in index (log) form to polynomial form
-			$INDEX_OF = & $rs['index_of']; // the address of an array of NN elements to convert Galois field elements in polynomial form to index (log) form
-			$GENPOLY  = & $rs['genpoly']; // an array of NROOTS+1 elements containing the generator polynomial in index form
-			$NROOTS   = & $rs['nroots']; // the number of roots in the RS code generator polynomial, which is the same as the number of parity symbols in a block
-			$FCR      = & $rs['fcr']; // first consecutive root, index form
-			$PRIM     = & $rs['prim']; // primitive element, index form
-			$IPRIM    = & $rs['iprim']; // prim-th root of 1, index form
-			$PAD      = & $rs['pad']; // the number of pad symbols in a block
-			$A0       = & $NN;
-			$parity = array_fill(0, $NROOTS, 0);
-			for ($i = 0; $i < ($NN - $NROOTS - $PAD); $i++) {
-				$feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
-				if ($feedback != $A0) {
-					// feedback term is non-zero
-					// This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
-					// always be for the polynomials constructed by init_rs()
-					$feedback = $this->modnn($rs, $NN - $GENPOLY[$NROOTS] + $feedback);
-					for ($j = 1; $j < $NROOTS; ++$j) {
-					$parity[$j] ^= $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[($NROOTS - $j)])];
-					}
-				}
-				// Shift
-				array_shift($parity);
-				if ($feedback != $A0) {
-					array_push($parity, $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[0])]);
-				} else {
-					array_push($parity, 0);
-				}
-			}
-			return $parity;
-		}
-
-	} // end QRcode class
+    // for compaibility with PHP4
+    if (!function_exists('str_split')) {
+        /**
+         * Convert a string to an array (needed for PHP4 compatibility)
+         * @param string $string The input string.
+         * @param int $split_length Maximum length of the chunk.
+         * @return  If the optional split_length  parameter is specified, the returned array will be broken down into chunks with each being split_length  in length, otherwise each chunk will be one character in length. FALSE is returned if split_length is less than 1. If the split_length length exceeds the length of string , the entire string is returned as the first (and only) array element.
+         */
+        function str_split($string, $split_length = 1) {
+            if ((strlen($string) > $split_length) or (!$split_length)) {
+                do {
+                    $c = strlen($string);
+                    $parts[] = substr($string, 0, $split_length);
+                    $string = substr($string, $split_length);
+                } while ($string !== false);
+            } else {
+                $parts = array($string);
+            }
+            return $parts;
+        }
+    }
+
+    // #####################################################
+
+    /**
+     * Class to create QR-code arrays for TCPDF class.
+     * QR Code symbol is a 2D barcode that can be scanned by handy terminals such as a mobile phone with CCD.
+     * The capacity of QR Code is up to 7000 digits or 4000 characters, and has high robustness.
+     * This class supports QR Code model 2, described in JIS (Japanese Industrial Standards) X0510:2004 or ISO/IEC 18004.
+     * Currently the following features are not supported: ECI and FNC1 mode, Micro QR Code, QR Code model 1, Structured mode.
+     *
+     * This class is derived from "PHP QR Code encoder" by Dominik Dzienia (http://phpqrcode.sourceforge.net/) based on "libqrencode C library 3.1.1." by Kentaro Fukuchi (http://megaui.net/fukuchi/works/qrencode/index.en.html), contains Reed-Solomon code written by Phil Karn, KA9Q. QR Code is registered trademark of DENSO WAVE INCORPORATED (http://www.denso-wave.com/qrcode/index-e.html).
+     * Please read comments on this class source file for full copyright and license information.
+     *
+     * @name QRcode
+     * @package com.tecnick.tcpdf
+     * @abstract Class for generating QR-code array for TCPDF.
+     * @author Nicola Asuni
+     * @copyright 2010 Nicola Asuni - Tecnick.com S.r.l (www.tecnick.com) Via Della Pace, 11 - 09044 - Quartucciu (CA) - ITALY - www.tecnick.com - info@tecnick.com
+     * @link http://www.tcpdf.org
+     * @license http://www.gnu.org/copyleft/lesser.html LGPL
+     * @version 1.0.002
+     */
+    class QRcode {
+
+        /**
+         * @var barcode array to be returned which is readable by TCPDF
+         * @access protected
+         */
+        protected $barcode_array = array();
+
+        /**
+         * @var QR code version. Size of QRcode is defined as version. Version is from 1 to 40. Version 1 is 21*21 matrix. And 4 modules increases whenever 1 version increases. So version 40 is 177*177 matrix.
+         * @access protected
+         */
+        protected $version = 0;
+
+        /**
+         * @var Levels of error correction. See definitions for possible values.
+         * @access protected
+         */
+        protected $level = QR_ECLEVEL_L;
+
+        /**
+         * @var Encoding mode
+         * @access protected
+         */
+        protected $hint = QR_MODE_8B;
+
+        /**
+         * @var if true the input string will be converted to uppercase
+         * @access protected
+         */
+        protected $casesensitive = true;
+
+        /**
+         * @var structured QR code (not supported yet)
+         * @access protected
+         */
+        protected $structured = 0;
+
+        /**
+         * @var mask data
+         * @access protected
+         */
+        protected $data;
+
+        // FrameFiller
+
+        /**
+         * @var width
+         * @access protected
+         */
+        protected $width;
+
+        /**
+         * @var frame
+         * @access protected
+         */
+        protected $frame;
+
+        /**
+         * @var X position of bit
+         * @access protected
+         */
+        protected $x;
+
+        /**
+         * @var Y position of bit
+         * @access protected
+         */
+        protected $y;
+
+        /**
+         * @var direction
+         * @access protected
+         */
+        protected $dir;
+
+        /**
+         * @var single bit
+         * @access protected
+         */
+        protected $bit;
+
+        // ---- QRrawcode ----
+
+        /**
+         * @var data code
+         * @access protected
+         */
+        protected $datacode = array();
+
+        /**
+         * @var error correction code
+         * @access protected
+         */
+        protected $ecccode = array();
+
+        /**
+         * @var blocks
+         * @access protected
+         */
+        protected $blocks;
+
+        /**
+         * @var Reed-Solomon blocks
+         * @access protected
+         */
+        protected $rsblocks = array(); //of RSblock
+
+        /**
+         * @var counter
+         * @access protected
+         */
+        protected $count;
+
+        /**
+         * @var data length
+         * @access protected
+         */
+        protected $dataLength;
+
+        /**
+         * @var error correction length
+         * @access protected
+         */
+        protected $eccLength;
+
+        /**
+         * @var b1
+         * @access protected
+         */
+        protected $b1;
+
+        // ---- QRmask ----
+
+        /**
+         * @var run length
+         * @access protected
+         */
+        protected $runLength = array();
+
+        // ---- QRsplit ----
+
+        /**
+         * @var input data string
+         * @access protected
+         */
+        protected $dataStr = '';
+
+        /**
+         * @var input items
+         * @access protected
+         */
+        protected $items;
+
+        // Reed-Solomon items
+
+        /**
+         * @var Reed-Solomon items
+         * @access protected
+         */
+        protected $rsitems = array();
+
+        /**
+         * @var array of frames
+         * @access protected
+         */
+        protected $frames = array();
+
+        /**
+         * @var alphabet-numeric convesion table
+         * @access protected
+         */
+        protected $anTable = array(
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+            36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43, //
+                0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 44, -1, -1, -1, -1, -1, //
+            -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, //
+            25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, //
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, //
+            -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1  //
+            );
+
+        /**
+         * @var array Table of the capacity of symbols
+         * See Table 1 (pp.13) and Table 12-16 (pp.30-36), JIS X0510:2004.
+         * @access protected
+         */
+        protected $capacity = array(
+            array(0, 0, 0, array(0, 0, 0, 0)), //
+            array(21, 26, 0, array(7, 10, 13, 17)), //  1
+            array(25, 44, 7, array(10, 16, 22, 28)), //
+            array(29, 70, 7, array(15, 26, 36, 44)), //
+            array(33, 100, 7, array(20, 36, 52, 64)), //
+            array(37, 134, 7, array(26, 48, 72, 88)), //  5
+            array(41, 172, 7, array(36, 64, 96, 112)), //
+            array(45, 196, 0, array(40, 72, 108, 130)), //
+            array(49, 242, 0, array(48, 88, 132, 156)), //
+            array(53, 292, 0, array(60, 110, 160, 192)), //
+            array(57, 346, 0, array(72, 130, 192, 224)), // 10
+            array(61, 404, 0, array(80, 150, 224, 264)), //
+            array(65, 466, 0, array(96, 176, 260, 308)), //
+            array(69, 532, 0, array(104, 198, 288, 352)), //
+            array(73, 581, 3, array(120, 216, 320, 384)), //
+            array(77, 655, 3, array(132, 240, 360, 432)), // 15
+            array(81, 733, 3, array(144, 280, 408, 480)), //
+            array(85, 815, 3, array(168, 308, 448, 532)), //
+            array(89, 901, 3, array(180, 338, 504, 588)), //
+            array(93, 991, 3, array(196, 364, 546, 650)), //
+            array(97, 1085, 3, array(224, 416, 600, 700)), // 20
+            array(101, 1156, 4, array(224, 442, 644, 750)), //
+            array(105, 1258, 4, array(252, 476, 690, 816)), //
+            array(109, 1364, 4, array(270, 504, 750, 900)), //
+            array(113, 1474, 4, array(300, 560, 810, 960)), //
+            array(117, 1588, 4, array(312, 588, 870, 1050)), // 25
+            array(121, 1706, 4, array(336, 644, 952, 1110)), //
+            array(125, 1828, 4, array(360, 700, 1020, 1200)), //
+            array(129, 1921, 3, array(390, 728, 1050, 1260)), //
+            array(133, 2051, 3, array(420, 784, 1140, 1350)), //
+            array(137, 2185, 3, array(450, 812, 1200, 1440)), // 30
+            array(141, 2323, 3, array(480, 868, 1290, 1530)), //
+            array(145, 2465, 3, array(510, 924, 1350, 1620)), //
+            array(149, 2611, 3, array(540, 980, 1440, 1710)), //
+            array(153, 2761, 3, array(570, 1036, 1530, 1800)), //
+            array(157, 2876, 0, array(570, 1064, 1590, 1890)), // 35
+            array(161, 3034, 0, array(600, 1120, 1680, 1980)), //
+            array(165, 3196, 0, array(630, 1204, 1770, 2100)), //
+            array(169, 3362, 0, array(660, 1260, 1860, 2220)), //
+            array(173, 3532, 0, array(720, 1316, 1950, 2310)), //
+            array(177, 3706, 0, array(750, 1372, 2040, 2430))  // 40
+        );
+
+        /**
+         * @var array Length indicator
+         * @access protected
+         */
+        protected $lengthTableBits = array(
+            array(10, 12, 14),
+            array(9, 11, 13),
+            array(8, 16, 16),
+            array(8, 10, 12)
+        );
+
+        /**
+         * @var array Table of the error correction code (Reed-Solomon block)
+         * See Table 12-16 (pp.30-36), JIS X0510:2004.
+         * @access protected
+         */
+        protected $eccTable = array(
+            array(array(0, 0), array(0, 0), array(0, 0), array(0, 0)), //
+            array(array(1, 0), array(1, 0), array(1, 0), array(1, 0)), //  1
+            array(array(1, 0), array(1, 0), array(1, 0), array(1, 0)), //
+            array(array(1, 0), array(1, 0), array(2, 0), array(2, 0)), //
+            array(array(1, 0), array(2, 0), array(2, 0), array(4, 0)), //
+            array(array(1, 0), array(2, 0), array(2, 2), array(2, 2)), //  5
+            array(array(2, 0), array(4, 0), array(4, 0), array(4, 0)), //
+            array(array(2, 0), array(4, 0), array(2, 4), array(4, 1)), //
+            array(array(2, 0), array(2, 2), array(4, 2), array(4, 2)), //
+            array(array(2, 0), array(3, 2), array(4, 4), array(4, 4)), //
+            array(array(2, 2), array(4, 1), array(6, 2), array(6, 2)), // 10
+            array(array(4, 0), array(1, 4), array(4, 4), array(3, 8)), //
+            array(array(2, 2), array(6, 2), array(4, 6), array(7, 4)), //
+            array(array(4, 0), array(8, 1), array(8, 4), array(12, 4)), //
+            array(array(3, 1), array(4, 5), array(11, 5), array(11, 5)), //
+            array(array(5, 1), array(5, 5), array(5, 7), array(11, 7)), // 15
+            array(array(5, 1), array(7, 3), array(15, 2), array(3, 13)), //
+            array(array(1, 5), array(10, 1), array(1, 15), array(2, 17)), //
+            array(array(5, 1), array(9, 4), array(17, 1), array(2, 19)), //
+            array(array(3, 4), array(3, 11), array(17, 4), array(9, 16)), //
+            array(array(3, 5), array(3, 13), array(15, 5), array(15, 10)), // 20
+            array(array(4, 4), array(17, 0), array(17, 6), array(19, 6)), //
+            array(array(2, 7), array(17, 0), array(7, 16), array(34, 0)), //
+            array(array(4, 5), array(4, 14), array(11, 14), array(16, 14)), //
+            array(array(6, 4), array(6, 14), array(11, 16), array(30, 2)), //
+            array(array(8, 4), array(8, 13), array(7, 22), array(22, 13)), // 25
+            array(array(10, 2), array(19, 4), array(28, 6), array(33, 4)), //
+            array(array(8, 4), array(22, 3), array(8, 26), array(12, 28)), //
+            array(array(3, 10), array(3, 23), array(4, 31), array(11, 31)), //
+            array(array(7, 7), array(21, 7), array(1, 37), array(19, 26)), //
+            array(array(5, 10), array(19, 10), array(15, 25), array(23, 25)), // 30
+            array(array(13, 3), array(2, 29), array(42, 1), array(23, 28)), //
+            array(array(17, 0), array(10, 23), array(10, 35), array(19, 35)), //
+            array(array(17, 1), array(14, 21), array(29, 19), array(11, 46)), //
+            array(array(13, 6), array(14, 23), array(44, 7), array(59, 1)), //
+            array(array(12, 7), array(12, 26), array(39, 14), array(22, 41)), // 35
+            array(array(6, 14), array(6, 34), array(46, 10), array(2, 64)), //
+            array(array(17, 4), array(29, 14), array(49, 10), array(24, 46)), //
+            array(array(4, 18), array(13, 32), array(48, 14), array(42, 32)), //
+            array(array(20, 4), array(40, 7), array(43, 22), array(10, 67)), //
+            array(array(19, 6), array(18, 31), array(34, 34), array(20, 61))  // 40
+        );
+
+        /**
+         * @var array Positions of alignment patterns.
+         * This array includes only the second and the third position of the alignment patterns. Rest of them can be calculated from the distance between them.
+         * See Table 1 in Appendix E (pp.71) of JIS X0510:2004.
+         * @access protected
+         */
+        protected $alignmentPattern = array(
+            array(0, 0),
+            array(0, 0), array(18, 0), array(22, 0), array(26, 0), array(30, 0), //  1- 5
+            array(34, 0), array(22, 38), array(24, 42), array(26, 46), array(28, 50), //  6-10
+            array(30, 54), array(32, 58), array(34, 62), array(26, 46), array(26, 48), // 11-15
+            array(26, 50), array(30, 54), array(30, 56), array(30, 58), array(34, 62), // 16-20
+            array(28, 50), array(26, 50), array(30, 54), array(28, 54), array(32, 58), // 21-25
+            array(30, 58), array(34, 62), array(26, 50), array(30, 54), array(26, 52), // 26-30
+            array(30, 56), array(34, 60), array(30, 58), array(34, 62), array(30, 54), // 31-35
+            array(24, 50), array(28, 54), array(32, 58), array(26, 54), array(30, 58)  // 35-40
+        );
+
+        /**
+         * @var array Version information pattern (BCH coded).
+         * See Table 1 in Appendix D (pp.68) of JIS X0510:2004.
+         * size: [QRSPEC_VERSION_MAX - 6]
+         * @access protected
+         */
+        protected $versionPattern = array(
+            0x07c94, 0x085bc, 0x09a99, 0x0a4d3, 0x0bbf6, 0x0c762, 0x0d847, 0x0e60d, //
+            0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6, 0x15683, 0x168c9, //
+            0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75, //
+            0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64, //
+            0x27541, 0x28c69
+        );
+
+        /**
+         * @var array Format information
+         * @access protected
+         */
+        protected $formatInfo = array(
+            array(0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976), //
+            array(0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0), //
+            array(0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed), //
+            array(0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b)  //
+        );
+
+
+        // -------------------------------------------------
+        // -------------------------------------------------
+
+
+        /**
+         * This is the class constructor.
+         * Creates a QRcode object
+         * @param string $code code to represent using QRcode
+         * @param string $eclevel error level: <ul><li>L : About 7% or less errors can be corrected.</li><li>M : About 15% or less errors can be corrected.</li><li>Q : About 25% or less errors can be corrected.</li><li>H : About 30% or less errors can be corrected.</li></ul>
+         * @access public
+         * @since 1.0.000
+         */
+        public function __construct($code, $eclevel = 'L') {
+            $barcode_array = array();
+            if ((is_null($code)) or ($code == '\0') or ($code == '')) {
+                return false;
+            }
+            // set error correction level
+            $this->level = array_search($eclevel, array('L', 'M', 'Q', 'H'));
+            if ($this->level === false) {
+                $this->level = QR_ECLEVEL_L;
+            }
+            if (($this->hint != QR_MODE_8B) and ($this->hint != QR_MODE_KJ)) {
+                return false;
+            }
+            if (($this->version < 0) or ($this->version > QRSPEC_VERSION_MAX)) {
+                return false;
+            }
+            $this->items = array();
+            $this->encodeString($code);
+            $qrTab = $this->binarize($this->data);
+            $size = count($qrTab);
+            $barcode_array['num_rows'] = $size;
+            $barcode_array['num_cols'] = $size;
+            $barcode_array['bcode'] = array();
+            foreach ($qrTab as $line) {
+                $arrAdd = array();
+                foreach (str_split($line) as $char) {
+                    $arrAdd[] = ($char == '1') ? 1 : 0;
+                }
+                $barcode_array['bcode'][] = $arrAdd;
+            }
+            $this->barcode_array = $barcode_array;
+        }
+
+        /**
+         * Returns a barcode array which is readable by TCPDF
+         * @return array barcode array readable by TCPDF;
+         * @access public
+         */
+        public function getBarcodeArray() {
+            return $this->barcode_array;
+        }
+
+        /**
+         * Convert the frame in binary form
+         * @param array $frame array to binarize
+         * @return array frame in binary form
+         */
+        protected function binarize($frame) {
+            $len = count($frame);
+            // the frame is square (width = height)
+            foreach ($frame as &$frameLine) {
+                for ($i = 0; $i < $len; $i++) {
+                    $frameLine[$i] = (ord($frameLine[$i]) & 1) ? '1' : '0';
+                }
+            }
+            return $frame;
+        }
+
+        /**
+         * Encode the input string to QR code
+         * @param string $string input string to encode
+         */
+        protected function encodeString($string) {
+            $this->dataStr = $string;
+            if (!$this->casesensitive) {
+                $this->toUpper();
+            }
+            $ret = $this->splitString();
+            if ($ret < 0) {
+                return null;
+            }
+            $this->encodeMask(-1);
+        }
+
+        /**
+         * Encode mask
+         * @param int $mask masking mode
+         */
+        protected function encodeMask($mask) {
+            $spec = array(0, 0, 0, 0, 0);
+            $this->datacode = $this->getByteStream($this->items);
+            if (is_null($this->datacode)) {
+                return null;
+            }
+            $spec = $this->getEccSpec($this->version, $this->level, $spec);
+            $this->b1 = $this->rsBlockNum1($spec);
+            $this->dataLength = $this->rsDataLength($spec);
+            $this->eccLength = $this->rsEccLength($spec);
+            $this->ecccode = array_fill(0, $this->eccLength, 0);
+            $this->blocks = $this->rsBlockNum($spec);
+            $ret = $this->init($spec);
+            if ($ret < 0) {
+                return null;
+            }
+            $this->count = 0;
+            $this->width = $this->getWidth($this->version);
+            $this->frame = $this->newFrame($this->version);
+            $this->x = $this->width - 1;
+            $this->y = $this->width - 1;
+            $this->dir = -1;
+            $this->bit = -1;
+            // inteleaved data and ecc codes
+            for ($i = 0; $i < ($this->dataLength + $this->eccLength); $i++) {
+                $code = $this->getCode();
+                $bit = 0x80;
+                for ($j = 0; $j < 8; $j++) {
+                    $addr = $this->getNextPosition();
+                    $this->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
+                    $bit = $bit >> 1;
+                }
+            }
+            // remainder bits
+            $j = $this->getRemainder($this->version);
+            for ($i = 0; $i < $j; $i++) {
+                $addr = $this->getNextPosition();
+                $this->setFrameAt($addr, 0x02);
+            }
+            // masking
+            $this->runLength = array_fill(0, QRSPEC_WIDTH_MAX + 1, 0);
+            if ($mask < 0) {
+                if (QR_FIND_BEST_MASK) {
+                    $masked = $this->mask($this->width, $this->frame, $this->level);
+                } else {
+                    $masked = $this->makeMask($this->width, $this->frame, (intval(QR_DEFAULT_MASK) % 8), $this->level);
+                }
+            } else {
+                $masked = $this->makeMask($this->width, $this->frame, $mask, $this->level);
+            }
+            if ($masked == null) {
+                return null;
+            }
+            $this->data = $masked;
+        }
+
+        // - - - - - - - - - - - - - - - - - - - - - - - - -
+
+        // FrameFiller
+
+        /**
+         * Set frame value at specified position
+         * @param array $at x,y position
+         * @param int $val value of the character to set
+         */
+        protected function setFrameAt($at, $val) {
+            $this->frame[$at['y']][$at['x']] = chr($val);
+        }
+
+        /**
+         * Get frame value at specified position
+         * @param array $at x,y position
+         * @return value at specified position
+         */
+        protected function getFrameAt($at) {
+            return ord($this->frame[$at['y']][$at['x']]);
+        }
+
+        /**
+         * Return the next frame position
+         * @return array of x,y coordinates
+         */
+        protected function getNextPosition() {
+            do {
+                if ($this->bit == -1) {
+                    $this->bit = 0;
+                    return array('x'=>$this->x, 'y'=>$this->y);
+                }
+                $x = $this->x;
+                $y = $this->y;
+                $w = $this->width;
+                if ($this->bit == 0) {
+                    $x--;
+                    $this->bit++;
+                } else {
+                    $x++;
+                    $y += $this->dir;
+                    $this->bit--;
+                }
+                if ($this->dir < 0) {
+                    if ($y < 0) {
+                        $y = 0;
+                        $x -= 2;
+                        $this->dir = 1;
+                        if ($x == 6) {
+                            $x--;
+                            $y = 9;
+                        }
+                    }
+                } else {
+                    if ($y == $w) {
+                        $y = $w - 1;
+                        $x -= 2;
+                        $this->dir = -1;
+                        if ($x == 6) {
+                            $x--;
+                            $y -= 8;
+                        }
+                    }
+                }
+                if (($x < 0) or ($y < 0)) {
+                    return null;
+                }
+                $this->x = $x;
+                $this->y = $y;
+            } while (ord($this->frame[$y][$x]) & 0x80);
+            return array('x'=>$x, 'y'=>$y);
+        }
+
+        // - - - - - - - - - - - - - - - - - - - - - - - - -
+
+        // QRrawcode
+
+        /**
+         * Initialize code.
+         * @param array $spec array of ECC specification
+         * @return 0 in case of success, -1 in case of error
+         */
+        protected function init($spec) {
+            $dl = $this->rsDataCodes1($spec);
+            $el = $this->rsEccCodes1($spec);
+            $rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            $blockNo = 0;
+            $dataPos = 0;
+            $eccPos = 0;
+            $endfor = $this->rsBlockNum1($spec);
+            for ($i = 0; $i < $endfor; ++$i) {
+                $ecc = array_slice($this->ecccode, $eccPos);
+                $this->rsblocks[$blockNo] = array();
+                $this->rsblocks[$blockNo]['dataLength'] = $dl;
+                $this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
+                $this->rsblocks[$blockNo]['eccLength'] = $el;
+                $ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
+                $this->rsblocks[$blockNo]['ecc'] = $ecc;
+                $this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+            if ($this->rsBlockNum2($spec) == 0) {
+                return 0;
+            }
+            $dl = $this->rsDataCodes2($spec);
+            $el = $this->rsEccCodes2($spec);
+            $rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
+            if ($rs == null) {
+                return -1;
+            }
+            $endfor = $this->rsBlockNum2($spec);
+            for ($i = 0; $i < $endfor; ++$i) {
+                $ecc = array_slice($this->ecccode, $eccPos);
+                $this->rsblocks[$blockNo] = array();
+                $this->rsblocks[$blockNo]['dataLength'] = $dl;
+                $this->rsblocks[$blockNo]['data'] = array_slice($this->datacode, $dataPos);
+                $this->rsblocks[$blockNo]['eccLength'] = $el;
+                $ecc = $this->encode_rs_char($rs, $this->rsblocks[$blockNo]['data'], $ecc);
+                $this->rsblocks[$blockNo]['ecc'] = $ecc;
+                $this->ecccode = array_merge(array_slice($this->ecccode, 0, $eccPos), $ecc);
+                $dataPos += $dl;
+                $eccPos += $el;
+                $blockNo++;
+            }
+            return 0;
+        }
+
+        /**
+         * Return Reed-Solomon block code.
+         * @return array rsblocks
+         */
+        protected function getCode() {
+            if ($this->count < $this->dataLength) {
+                $row = $this->count % $this->blocks;
+                $col = $this->count / $this->blocks;
+                if ($col >= $this->rsblocks[0]['dataLength']) {
+                    $row += $this->b1;
+                }
+                $ret = $this->rsblocks[$row]['data'][$col];
+            } elseif ($this->count < $this->dataLength + $this->eccLength) {
+                $row = ($this->count - $this->dataLength) % $this->blocks;
+                $col = ($this->count - $this->dataLength) / $this->blocks;
+                $ret = $this->rsblocks[$row]['ecc'][$col];
+            } else {
+                return 0;
+            }
+            $this->count++;
+            return $ret;
+        }
+
+        // - - - - - - - - - - - - - - - - - - - - - - - - -
+
+        // QRmask
+
+        /**
+         * Write Format Information on frame and returns the number of black bits
+         * @param int $width frame width
+         * @param array $frame frame
+         * @param array $mask masking mode
+         * @param int $level error correction level
+         * @return int blacks
+         */
+            protected function writeFormatInformation($width, &$frame, $mask, $level) {
+            $blacks = 0;
+            $format = $this->getFormatInfo($mask, $level);
+            for ($i = 0; $i < 8; ++$i) {
+                if ($format & 1) {
+                    $blacks += 2;
+                    $v = 0x85;
+                } else {
+                    $v = 0x84;
+                }
+                $frame[8][$width - 1 - $i] = chr($v);
+                if ($i < 6) {
+                    $frame[$i][8] = chr($v);
+                } else {
+                    $frame[$i + 1][8] = chr($v);
+                }
+                $format = $format >> 1;
+            }
+            for ($i = 0; $i < 7; ++$i) {
+            if ($format & 1) {
+                $blacks += 2;
+                $v = 0x85;
+            } else {
+                $v = 0x84;
+            }
+            $frame[$width - 7 + $i][8] = chr($v);
+            if ($i == 0) {
+                $frame[8][7] = chr($v);
+            } else {
+                $frame[8][6 - $i] = chr($v);
+            }
+            $format = $format >> 1;
+            }
+            return $blacks;
+        }
+
+        /**
+         * mask0
+         * @param int $x X position
+         * @param int $y Y position
+         * @return int mask
+         */
+            protected function mask0($x, $y) {
+            return ($x + $y) & 1;
+        }
+
+        /**
+         * mask1
+         * @param int $x X position
+         * @param int $y Y position
+         * @return int mask
+         */
+            protected function mask1($x, $y) {
+            return ($y & 1);
+        }
+
+        /**
+         * mask2
+         * @param int $x X position
+         * @param int $y Y position
+         * @return int mask
+         */
+            protected function mask2($x, $y) {
+            return ($x % 3);
+        }
+
+        /**
+         * mask3
+         * @param int $x X position
+         * @param int $y Y position
+         * @return int mask
+         */
+            protected function mask3($x, $y) {
+            return ($x + $y) % 3;
+        }
+
+        /**
+         * mask4
+         * @param int $x X position
+         * @param int $y Y position
+         * @return int mask
+         */
+            protected function mask4($x, $y) {
+            return (((int) ($y / 2)) + ((int) ($x / 3))) & 1;
+        }
+
+        /**
+         * mask5
+         * @param int $x X position
+         * @param int $y Y position
+         * @return int mask
+         */
+            protected function mask5($x, $y) {
+            return (($x * $y) & 1) + ($x * $y) % 3;
+        }
+
+        /**
+         * mask6
+         * @param int $x X position
+         * @param int $y Y position
+         * @return int mask
+         */
+            protected function mask6($x, $y) {
+            return ((($x * $y) & 1) + ($x * $y) % 3) & 1;
+        }
+
+        /**
+         * mask7
+         * @param int $x X position
+         * @param int $y Y position
+         * @return int mask
+         */
+            protected function mask7($x, $y) {
+            return ((($x * $y) % 3) + (($x + $y) & 1)) & 1;
+        }
+
+        /**
+         * Return bitmask
+         * @param int $maskNo mask number
+         * @param int $width width
+         * @param array $frame frame
+         * @return array bitmask
+         */
+        protected function generateMaskNo($maskNo, $width, $frame) {
+            $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+            for ($y = 0; $y < $width; ++$y) {
+                for ($x = 0; $x < $width; ++$x) {
+                    if (ord($frame[$y][$x]) & 0x80) {
+                        $bitMask[$y][$x] = 0;
+                    } else {
+                        $maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
+                        $bitMask[$y][$x] = ($maskFunc == 0) ? 1 : 0;
+                    }
+                }
+            }
+            return $bitMask;
+        }
+
+        /**
+         * makeMaskNo
+         * @param int $maskNo
+         * @param int $width
+         * @param int $s
+         * @param int $d
+         * @param boolean $maskGenOnly
+         * @return int b
+         */
+            protected function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) {
+            $b = 0;
+            $bitMask = array();
+            $bitMask = $this->generateMaskNo($maskNo, $width, $s);
+            if ($maskGenOnly) {
+                return;
+            }
+            $d = $s;
+            for ($y = 0; $y < $width; ++$y) {
+                for ($x = 0; $x < $width; ++$x) {
+                    if ($bitMask[$y][$x] == 1) {
+                        $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int) $bitMask[$y][$x]);
+                    }
+                    $b += (int) (ord($d[$y][$x]) & 1);
+                }
+            }
+            return $b;
+        }
+
+        /**
+         * makeMask
+         * @param int $width
+         * @param array $frame
+         * @param int $maskNo
+         * @param int $level
+         * @return array mask
+         */
+            protected function makeMask($width, $frame, $maskNo, $level) {
+            $masked = array_fill(0, $width, str_repeat("\0", $width));
+            $this->makeMaskNo($maskNo, $width, $frame, $masked);
+            $this->writeFormatInformation($width, $masked, $maskNo, $level);
+            return $masked;
+        }
+
+        /**
+         * calcN1N3
+         * @param int $length
+         * @return int demerit
+         */
+            protected function calcN1N3($length) {
+            $demerit = 0;
+            for ($i = 0; $i < $length; ++$i) {
+                if ($this->runLength[$i] >= 5) {
+                    $demerit += (N1 + ($this->runLength[$i] - 5));
+                }
+                if ($i & 1) {
+                    if (($i >= 3) and ($i < ($length - 2)) and ($this->runLength[$i] % 3 == 0)) {
+                        $fact = (int) ($this->runLength[$i] / 3);
+                        if (($this->runLength[$i - 2] == $fact)
+                            and ($this->runLength[$i - 1] == $fact)
+                            and ($this->runLength[$i + 1] == $fact)
+                            and ($this->runLength[$i + 2] == $fact)) {
+                            if (($this->runLength[$i - 3] < 0) or ($this->runLength[$i - 3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            } elseif ((($i + 3) >= $length) or ($this->runLength[$i + 3] >= (4 * $fact))) {
+                                $demerit += N3;
+                            }
+                        }
+                    }
+                }
+            }
+            return $demerit;
+        }
+
+        /**
+         * evaluateSymbol
+         * @param int $width
+         * @param array $frame
+         * @return int demerit
+         */
+            protected function evaluateSymbol($width, $frame) {
+            $head = 0;
+            $demerit = 0;
+            for ($y = 0; $y < $width; ++$y) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                $frameY = $frame[$y];
+                if ($y > 0) {
+                    $frameYM = $frame[$y - 1];
+                }
+                for ($x = 0; $x < $width; ++$x) {
+                    if (($x > 0) and ($y > 0)) {
+                        $b22 = ord($frameY[$x]) & ord($frameY[$x - 1]) & ord($frameYM[$x]) & ord($frameYM[$x - 1]);
+                        $w22 = ord($frameY[$x]) | ord($frameY[$x - 1]) | ord($frameYM[$x]) | ord($frameYM[$x - 1]);
+                        if (($b22 | ($w22 ^ 1)) & 1) {
+                            $demerit += N2;
+                        }
+                    }
+                    if (($x == 0) and (ord($frameY[$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } elseif ($x > 0) {
+                        if ((ord($frameY[$x]) ^ ord($frameY[$x - 1])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+                $demerit += $this->calcN1N3($head + 1);
+            }
+            for ($x = 0; $x < $width; ++$x) {
+                $head = 0;
+                $this->runLength[0] = 1;
+                for ($y = 0; $y < $width; ++$y) {
+                    if (($y == 0) and (ord($frame[$y][$x]) & 1)) {
+                        $this->runLength[0] = -1;
+                        $head = 1;
+                        $this->runLength[$head] = 1;
+                    } elseif ($y > 0) {
+                        if ((ord($frame[$y][$x]) ^ ord($frame[$y - 1][$x])) & 1) {
+                            $head++;
+                            $this->runLength[$head] = 1;
+                        } else {
+                            $this->runLength[$head]++;
+                        }
+                    }
+                }
+                $demerit += $this->calcN1N3($head + 1);
+            }
+            return $demerit;
+        }
+
+        /**
+         * mask
+         * @param int $width
+         * @param array $frame
+         * @param int $level
+         * @return array best mask
+         */
+            protected function mask($width, $frame, $level) {
+            $minDemerit = PHP_INT_MAX;
+            $bestMaskNum = 0;
+            $bestMask = array();
+            $checked_masks = array(0, 1, 2, 3, 4, 5, 6, 7);
+            if (QR_FIND_FROM_RANDOM !== false) {
+                $howManuOut = 8 - (QR_FIND_FROM_RANDOM % 9);
+                for ($i = 0; $i < $howManuOut; ++$i) {
+                    $remPos = rand(0, count($checked_masks) - 1);
+                    unset($checked_masks[$remPos]);
+                    $checked_masks = array_values($checked_masks);
+                }
+            }
+            $bestMask = $frame;
+            foreach ($checked_masks as $i) {
+                $mask = array_fill(0, $width, str_repeat("\0", $width));
+                $demerit = 0;
+                $blacks = 0;
+                $blacks  = $this->makeMaskNo($i, $width, $frame, $mask);
+                $blacks += $this->writeFormatInformation($width, $mask, $i, $level);
+                $blacks  = (int) (100 * $blacks / ($width * $width));
+                $demerit = (int) ((int) (abs($blacks - 50) / 5) * N4);
+                $demerit += $this->evaluateSymbol($width, $mask);
+                if ($demerit < $minDemerit) {
+                    $minDemerit = $demerit;
+                    $bestMask = $mask;
+                    $bestMaskNum = $i;
+                }
+            }
+            return $bestMask;
+        }
+
+        // - - - - - - - - - - - - - - - - - - - - - - - - -
+
+        // QRsplit
+
+        /**
+         * Return true if the character at specified position is a number
+         * @param string $str string
+         * @param int $pos characted position
+         * @return boolean true of false
+         */
+            protected function isdigitat($str, $pos) {
+            if ($pos >= strlen($str)) {
+                return false;
+            }
+            return ((ord($str[$pos]) >= ord('0')) && (ord($str[$pos]) <= ord('9')));
+        }
+
+        /**
+         * Return true if the character at specified position is an alphanumeric character
+         * @param string $str string
+         * @param int $pos characted position
+         * @return boolean true of false
+         */
+            protected function isalnumat($str, $pos) {
+            if ($pos >= strlen($str)) {
+                return false;
+            }
+            return ($this->lookAnTable(ord($str[$pos])) >= 0);
+        }
+
+        /**
+         * identifyMode
+         * @param int $pos
+         * @return int mode
+         */
+            protected function identifyMode($pos) {
+            if ($pos >= strlen($this->dataStr)) {
+                return QR_MODE_NL;
+            }
+            $c = $this->dataStr[$pos];
+            if ($this->isdigitat($this->dataStr, $pos)) {
+                return QR_MODE_NM;
+            } elseif ($this->isalnumat($this->dataStr, $pos)) {
+                return QR_MODE_AN;
+            } elseif ($this->hint == QR_MODE_KJ) {
+                if ($pos + 1 < strlen($this->dataStr)) {
+                    $d = $this->dataStr[$pos + 1];
+                    $word = (ord($c) << 8) | ord($d);
+                    if (($word >= 0x8140 && $word <= 0x9ffc) or ($word >= 0xe040 && $word <= 0xebbf)) {
+                        return QR_MODE_KJ;
+                    }
+                }
+            }
+            return QR_MODE_8B;
+        }
+
+        /**
+         * eatNum
+         * @return int run
+         */
+            protected function eatNum() {
+            $ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+            $p = 0;
+            while ($this->isdigitat($this->dataStr, $p)) {
+                $p++;
+            }
+            $run = $p;
+            $mode = $this->identifyMode($p);
+            if ($mode == QR_MODE_8B) {
+                $dif = $this->estimateBitsModeNum($run) + 4 + $ln
+                + $this->estimateBitsMode8(1)         // + 4 + l8
+                - $this->estimateBitsMode8($run + 1); // - 4 - l8
+                if ($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+            if ($mode == QR_MODE_AN) {
+                $dif = $this->estimateBitsModeNum($run) + 4 + $ln
+                + $this->estimateBitsModeAn(1)        // + 4 + la
+                - $this->estimateBitsModeAn($run + 1); // - 4 - la
+                if ($dif > 0) {
+                    return $this->eatAn();
+                }
+            }
+            $this->items = $this->appendNewInputItem($this->items, QR_MODE_NM, $run, str_split($this->dataStr));
+            return $run;
+        }
+
+        /**
+         * eatAn
+         * @return int run
+         */
+            protected function eatAn() {
+            $la = $this->lengthIndicator(QR_MODE_AN, $this->version);
+            $ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+            $p = 0;
+            while ($this->isalnumat($this->dataStr, $p)) {
+                if ($this->isdigitat($this->dataStr, $p)) {
+                    $q = $p;
+                    while ($this->isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = $this->estimateBitsModeAn($p) // + 4 + la
+                    + $this->estimateBitsModeNum($q - $p) + 4 + $ln
+                    - $this->estimateBitsModeAn($q); // - 4 - la
+                    if ($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+            $run = $p;
+            if (!$this->isalnumat($this->dataStr, $p)) {
+                $dif = $this->estimateBitsModeAn($run) + 4 + $la
+                + $this->estimateBitsMode8(1) // + 4 + l8
+                - $this->estimateBitsMode8($run + 1); // - 4 - l8
+                if ($dif > 0) {
+                    return $this->eat8();
+                }
+            }
+            $this->items = $this->appendNewInputItem($this->items, QR_MODE_AN, $run, str_split($this->dataStr));
+            return $run;
+        }
+
+        /**
+         * eatKanji
+         * @return int run
+         */
+            protected function eatKanji() {
+            $p = 0;
+            while ($this->identifyMode($p) == QR_MODE_KJ) {
+                $p += 2;
+            }
+            $this->items = $this->appendNewInputItem($this->items, QR_MODE_KJ, $p, str_split($this->dataStr));
+            return $p;
+        }
+
+        /**
+         * eat8
+         * @return int run
+         */
+            protected function eat8() {
+            $la = $this->lengthIndicator(QR_MODE_AN, $this->version);
+            $ln = $this->lengthIndicator(QR_MODE_NM, $this->version);
+            $p = 1;
+            $dataStrLen = strlen($this->dataStr);
+            while ($p < $dataStrLen) {
+                $mode = $this->identifyMode($p);
+                if ($mode == QR_MODE_KJ) {
+                    break;
+                }
+                if ($mode == QR_MODE_NM) {
+                    $q = $p;
+                    while ($this->isdigitat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = $this->estimateBitsMode8($p) // + 4 + l8
+                    + $this->estimateBitsModeNum($q - $p) + 4 + $ln
+                    - $this->estimateBitsMode8($q); // - 4 - l8
+                    if ($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } elseif ($mode == QR_MODE_AN) {
+                    $q = $p;
+                    while ($this->isalnumat($this->dataStr, $q)) {
+                        $q++;
+                    }
+                    $dif = $this->estimateBitsMode8($p)  // + 4 + l8
+                    + $this->estimateBitsModeAn($q - $p) + 4 + $la
+                    - $this->estimateBitsMode8($q); // - 4 - l8
+                    if ($dif < 0) {
+                        break;
+                    } else {
+                        $p = $q;
+                    }
+                } else {
+                    $p++;
+                }
+            }
+            $run = $p;
+            $this->items = $this->appendNewInputItem($this->items, QR_MODE_8B, $run, str_split($this->dataStr));
+            return $run;
+        }
+
+        /**
+         * splitString
+         */
+            protected function splitString() {
+            while (strlen($this->dataStr) > 0) {
+                if ($this->dataStr == '') {
+                    return 0;
+                }
+                $mode = $this->identifyMode(0);
+                switch ($mode) {
+                    case QR_MODE_NM: {
+                        $length = $this->eatNum();
+                        break;
+                    }
+                    case QR_MODE_AN: {
+                        $length = $this->eatAn();
+                        break;
+                    }
+                    case QR_MODE_KJ: {
+                        if ($this->hint == QR_MODE_KJ) {
+                            $length = $this->eatKanji();
+                        } else {
+                            $length = $this->eat8();
+                        }
+                        break;
+                    }
+                    default: {
+                        $length = $this->eat8();
+                        break;
+                    }
+                }
+                if ($length == 0) {
+                    return 0;
+                }
+                if ($length < 0) {
+                    return -1;
+                }
+                $this->dataStr = substr($this->dataStr, $length);
+            }
+        }
+
+        /**
+         * toUpper
+         */
+            protected function toUpper() {
+            $stringLen = strlen($this->dataStr);
+            $p = 0;
+            while ($p < $stringLen) {
+                $mode = $this->identifyMode(substr($this->dataStr, $p));
+                if ($mode == QR_MODE_KJ) {
+                    $p += 2;
+                } else {
+                    if ((ord($this->dataStr[$p]) >= ord('a')) and (ord($this->dataStr[$p]) <= ord('z'))) {
+                        $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
+                    }
+                    $p++;
+                }
+            }
+            return $this->dataStr;
+        }
+
+        // - - - - - - - - - - - - - - - - - - - - - - - - -
+
+        // QRinputItem
+
+        /**
+         * newInputItem
+         * @param int $mode
+         * @param int $size
+         * @param array $data
+         * @param array $bstream
+         * @return array input item
+         */
+            protected function newInputItem($mode, $size, $data, $bstream = null) {
+            $setData = array_slice($data, 0, $size);
+            if (count($setData) < $size) {
+                $setData = array_merge($setData, array_fill(0, ($size - count($setData)), 0));
+            }
+            if (!$this->check($mode, $size, $setData)) {
+                return null;
+            }
+            $inputitem = array();
+            $inputitem['mode'] = $mode;
+            $inputitem['size'] = $size;
+            $inputitem['data'] = $setData;
+            $inputitem['bstream'] = $bstream;
+            return $inputitem;
+        }
+
+        /**
+         * encodeModeNum
+         * @param array $inputitem
+         * @param int $version
+         * @return array input item
+         */
+            protected function encodeModeNum($inputitem, $version) {
+            $words = (int) ($inputitem['size'] / 3);
+            $inputitem['bstream'] = array();
+            $val = 0x1;
+            $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
+            $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_NM, $version), $inputitem['size']);
+            for ($i = 0; $i < $words; ++$i) {
+                $val  = (ord($inputitem['data'][$i * 3]) - ord('0')) * 100;
+                $val += (ord($inputitem['data'][$i * 3 + 1]) - ord('0')) * 10;
+                $val += (ord($inputitem['data'][$i * 3 + 2]) - ord('0'));
+                $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 10, $val);
+            }
+            if ($inputitem['size'] - $words * 3 == 1) {
+                $val = ord($inputitem['data'][$words * 3]) - ord('0');
+                $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, $val);
+            } elseif (($inputitem['size'] - ($words * 3)) == 2) {
+                $val  = (ord($inputitem['data'][$words * 3]) - ord('0')) * 10;
+                $val += (ord($inputitem['data'][$words * 3 + 1]) - ord('0'));
+                $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 7, $val);
+            }
+            return $inputitem;
+        }
+
+        /**
+         * encodeModeAn
+         * @param array $inputitem
+         * @param int $version
+         * @return array input item
+         */
+            protected function encodeModeAn($inputitem, $version) {
+            $words = (int) ($inputitem['size'] / 2);
+            $inputitem['bstream'] = array();
+            $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x02);
+            $inputitem['bstream'] = $this->appendNum(v, $this->lengthIndicator(QR_MODE_AN, $version), $inputitem['size']);
+            for ($i = 0; $i < $words; ++$i) {
+                $val  = (int) $this->lookAnTable(ord($inputitem['data'][$i * 2])) * 45;
+                $val += (int) $this->lookAnTable(ord($inputitem['data'][$i * 2 + 1]));
+                $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 11, $val);
+            }
+            if ($inputitem['size'] & 1) {
+                $val = $this->lookAnTable(ord($inputitem['data'][($words * 2)]));
+                $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 6, $val);
+            }
+            return $inputitem;
+        }
+
+        /**
+         * encodeMode8
+         * @param array $inputitem
+         * @param int $version
+         * @return array input item
+         */
+            protected function encodeMode8($inputitem, $version) {
+            $inputitem['bstream'] = array();
+            $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x4);
+            $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_8B, $version), $inputitem['size']);
+            for ($i = 0; $i < $inputitem['size']; ++$i) {
+                $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][$i]));
+            }
+            return $inputitem;
+        }
+
+        /**
+         * encodeModeKanji
+         * @param array $inputitem
+         * @param int $version
+         * @return array input item
+         */
+            protected function encodeModeKanji($inputitem, $version) {
+            $inputitem['bstream'] = array();
+            $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x8);
+            $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], $this->lengthIndicator(QR_MODE_KJ, $version), (int) ($inputitem['size'] / 2));
+            for ($i = 0; $i < $inputitem['size']; $i += 2) {
+                $val = (ord($inputitem['data'][$i]) << 8) | ord($inputitem['data'][$i + 1]);
+                if ($val <= 0x9ffc) {
+                    $val -= 0x8140;
+                } else {
+                    $val -= 0xc140;
+                }
+                $h = ($val >> 8) * 0xc0;
+                $val = ($val & 0xff) + $h;
+                $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 13, $val);
+            }
+            return $inputitem;
+        }
+
+        /**
+         * encodeModeStructure
+         * @param array $inputitem
+         * @return array input item
+         */
+            protected function encodeModeStructure($inputitem) {
+            $inputitem['bstream'] = array();
+            $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, 0x03);
+            $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][1]) - 1);
+            $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 4, ord($inputitem['data'][0]) - 1);
+            $inputitem['bstream'] = $this->appendNum($inputitem['bstream'], 8, ord($inputitem['data'][2]));
+            return $inputitem;
+        }
+
+        /**
+         * encodeBitStream
+         * @param array $inputitem
+         * @param int $version
+         * @return array input item
+         */
+            protected function encodeBitStream($inputitem, $version) {
+            $inputitem['bstream'] = array();
+            $words = $this->maximumWords($inputitem['mode'], $version);
+            if ($inputitem['size'] > $words) {
+                $st1 = $this->newInputItem($inputitem['mode'], $words, $inputitem['data']);
+                $st2 = $this->newInputItem($inputitem['mode'], $inputitem['size'] - $words, array_slice($inputitem['data'], $words));
+                $st1 = $this->encodeBitStream($st1, $version);
+                $st2 = $this->encodeBitStream($st2, $version);
+                $inputitem['bstream'] = array();
+                $inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st1['bstream']);
+                $inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st2['bstream']);
+            } else {
+                switch ($inputitem['mode']) {
+                    case QR_MODE_NM: {
+                        $inputitem = $this->encodeModeNum($inputitem, $version);
+                        break;
+                    }
+                    case QR_MODE_AN: {
+                        $inputitem = $this->encodeModeAn($inputitem, $version);
+                        break;
+                    }
+                    case QR_MODE_8B: {
+                        $inputitem = $this->encodeMode8($inputitem, $version);
+                        break;
+                    }
+                    case QR_MODE_KJ: {
+                        $inputitem = $this->encodeModeKanji($inputitem, $version);
+                        break;
+                    }
+                    case QR_MODE_ST: {
+                        $inputitem = $this->encodeModeStructure($inputitem);
+                        break;
+                    }
+                    default: {
+                        break;
+                    }
+                }
+            }
+            return $inputitem;
+        }
+
+        // - - - - - - - - - - - - - - - - - - - - - - - - -
+
+        // QRinput
+
+        /**
+         * Append data to an input object.
+         * The data is copied and appended to the input object.
+         * @param array items input items
+         * @param int $mode encoding mode.
+         * @param int $size size of data (byte).
+         * @param array $data array of input data.
+         * @return items
+         *
+         */
+        protected function appendNewInputItem($items, $mode, $size, $data) {
+            $items[] = $this->newInputItem($mode, $size, $data);
+            return $items;
+        }
+
+        /**
+         * insertStructuredAppendHeader
+         * @param array $items
+         * @param int $size
+         * @param int $index
+         * @param int $parity
+         * @return array items
+         */
+            protected function insertStructuredAppendHeader($items, $size, $index, $parity) {
+            if ($size > MAX_STRUCTURED_SYMBOLS) {
+                return -1;
+            }
+            if (($index <= 0) or ($index > MAX_STRUCTURED_SYMBOLS)) {
+                return -1;
+            }
+            $buf = array($size, $index, $parity);
+            $entry = $this->newInputItem(QR_MODE_ST, 3, buf);
+            array_unshift($items, $entry);
+            return $items;
+        }
+
+        /**
+         * calcParity
+         * @param array $items
+         * @return int parity
+         */
+            protected function calcParity($items) {
+            $parity = 0;
+            foreach ($items as $item) {
+                if ($item['mode'] != QR_MODE_ST) {
+                    for ($i = $item['size'] - 1; $i >= 0; --$i) {
+                        $parity ^= $item['data'][$i];
+                    }
+                }
+            }
+            return $parity;
+        }
+
+        /**
+         * checkModeNum
+         * @param int $size
+         * @param array $data
+         * @return boolean true or false
+         */
+            protected function checkModeNum($size, $data) {
+            for ($i = 0; $i < $size; ++$i) {
+                if ((ord($data[$i]) < ord('0')) or (ord($data[$i]) > ord('9'))) {
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        /**
+         * estimateBitsModeNum
+         * @param int $size
+         * @return int number of bits
+         */
+            protected function estimateBitsModeNum($size) {
+            $w = (int) $size / 3;
+            $bits = $w * 10;
+            switch ($size - $w * 3) {
+                case 1: {
+                    $bits += 4;
+                    break;
+                }
+                case 2: {
+                    $bits += 7;
+                    break;
+                }
+                default: {
+                    break;
+                }
+            }
+            return $bits;
+        }
+
+        /**
+         * Look up the alphabet-numeric convesion table (see JIS X0510:2004, pp.19).
+         * @param int $c character value
+         * @return value
+         */
+        protected function lookAnTable($c) {
+            return (($c > 127) ?-1 : $this->anTable[$c]);
+        }
+
+        /**
+         * checkModeAn
+         * @param int $size
+         * @param array $data
+         * @return boolean true or false
+         */
+            protected function checkModeAn($size, $data) {
+            for ($i = 0; $i < $size; ++$i) {
+                if ($this->lookAnTable(ord($data[$i])) == -1) {
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        /**
+         * estimateBitsModeAn
+         * @param int $size
+         * @return int number of bits
+         */
+            protected function estimateBitsModeAn($size) {
+            $w = (int) ($size / 2);
+            $bits = $w * 11;
+            if ($size & 1) {
+                $bits += 6;
+            }
+            return $bits;
+        }
+
+        /**
+         * estimateBitsMode8
+         * @param int $size
+         * @return int number of bits
+         */
+            protected function estimateBitsMode8($size) {
+            return $size * 8;
+        }
+
+        /**
+         * estimateBitsModeKanji
+         * @param int $size
+         * @return int number of bits
+         */
+            protected function estimateBitsModeKanji($size) {
+            return (int) (($size / 2) * 13);
+        }
+
+        /**
+         * checkModeKanji
+         * @param int $size
+         * @param array $data
+         * @return boolean true or false
+         */
+            protected function checkModeKanji($size, $data) {
+            if ($size & 1) {
+                return false;
+            }
+            for ($i = 0; $i < $size; $i += 2) {
+                $val = (ord($data[$i]) << 8) | ord($data[$i + 1]);
+                if (($val < 0x8140) or (($val > 0x9ffc) and ($val < 0xe040)) or ($val > 0xebbf)) {
+                    return false;
+                }
+            }
+            return true;
+        }
+
+        /**
+         * Validate the input data.
+         * @param int $mode encoding mode.
+         * @param int $size size of data (byte).
+         * @param array data data to validate
+         * @return boolean true in case of valid data, false otherwise
+         */
+        protected function check($mode, $size, $data) {
+            if ($size <= 0) {
+                return false;
+            }
+            switch ($mode) {
+                case QR_MODE_NM: {
+                    return $this->checkModeNum($size, $data);
+                }
+                case QR_MODE_AN: {
+                    return $this->checkModeAn($size, $data);
+                }
+                case QR_MODE_KJ: {
+                    return $this->checkModeKanji($size, $data);
+                }
+                case QR_MODE_8B: {
+                    return true;
+                }
+                case QR_MODE_ST: {
+                    return true;
+                }
+                default: {
+                    break;
+                }
+            }
+            return false;
+        }
+
+        /**
+         * estimateBitStreamSize
+         * @param array $items
+         * @param int $version
+         * @return int bits
+         */
+            protected function estimateBitStreamSize($items, $version) {
+            $bits = 0;
+            if ($version == 0) {
+                $version = 1;
+            }
+            foreach ($items as $item) {
+                switch ($item['mode']) {
+                    case QR_MODE_NM: {
+                        $bits = $this->estimateBitsModeNum($item['size']);
+                        break;
+                    }
+                    case QR_MODE_AN: {
+                        $bits = $this->estimateBitsModeAn($item['size']);
+                        break;
+                    }
+                    case QR_MODE_8B: {
+                        $bits = $this->estimateBitsMode8($item['size']);
+                        break;
+                    }
+                    case QR_MODE_KJ: {
+                        $bits = $this->estimateBitsModeKanji($item['size']);
+                        break;
+                    }
+                    case QR_MODE_ST: {
+                        return STRUCTURE_HEADER_BITS;
+                    }
+                    default: {
+                        return 0;
+                    }
+                }
+                $l = $this->lengthIndicator($item['mode'], $version);
+                $m = 1 << $l;
+                $num = (int) (($item['size'] + $m - 1) / $m);
+                $bits += $num * (4 + $l);
+            }
+            return $bits;
+        }
+
+        /**
+         * estimateVersion
+         * @param array $items
+         * @return int version
+         */
+            protected function estimateVersion($items) {
+            $version = 0;
+            $prev = 0;
+            do {
+                $prev = $version;
+                $bits = $this->estimateBitStreamSize($items, $prev);
+                $version = $this->getMinimumVersion((int) (($bits + 7) / 8), $this->level);
+                if ($version < 0) {
+                    return -1;
+                }
+            } while ($version > $prev);
+            return $version;
+        }
+
+        /**
+         * lengthOfCode
+         * @param int $mode
+         * @param int $version
+         * @param int $bits
+         * @return int size
+         */
+            protected function lengthOfCode($mode, $version, $bits) {
+            $payload = $bits - 4 - $this->lengthIndicator($mode, $version);
+            switch ($mode) {
+                case QR_MODE_NM: {
+                    $chunks = (int) ($payload / 10);
+                    $remain = $payload - $chunks * 10;
+                    $size = $chunks * 3;
+                    if ($remain >= 7) {
+                        $size += 2;
+                    } elseif ($remain >= 4) {
+                        $size += 1;
+                    }
+                    break;
+                }
+                case QR_MODE_AN: {
+                    $chunks = (int) ($payload / 11);
+                    $remain = $payload - $chunks * 11;
+                    $size = $chunks * 2;
+                    if ($remain >= 6) {
+                        ++$size;
+                    }
+                    break;
+                }
+                case QR_MODE_8B: {
+                    $size = (int) ($payload / 8);
+                    break;
+                }
+                case QR_MODE_KJ: {
+                    $size = (int) (($payload / 13) * 2);
+                    break;
+                }
+                case QR_MODE_ST: {
+                    $size = (int) ($payload / 8);
+                    break;
+                }
+                default: {
+                    $size = 0;
+                    break;
+                }
+            }
+            $maxsize = $this->maximumWords($mode, $version);
+            if ($size < 0) {
+                $size = 0;
+            }
+            if ($size > $maxsize) {
+                $size = $maxsize;
+            }
+            return $size;
+        }
+
+        /**
+         * createBitStream
+         * @param array $items
+         * @return array of items and total bits
+         */
+            protected function createBitStream($items) {
+            $total = 0;
+            foreach ($items as $key => $item) {
+                $items[$key] = $this->encodeBitStream($item, $this->version);
+                $bits = count($items[$key]['bstream']);
+                $total += $bits;
+            }
+            return array($items, $total);
+        }
+
+        /**
+         * convertData
+         * @param array $items
+         * @return array items
+         */
+            protected function convertData($items) {
+            $ver = $this->estimateVersion($items);
+            if ($ver > $this->version) {
+                $this->version = $ver;
+            }
+            for (;;) {
+                $cbs = $this->createBitStream($items);
+                $items = $cbs[0];
+                $bits = $cbs[1];
+                if ($bits < 0) {
+                    return -1;
+                }
+                $ver = $this->getMinimumVersion((int) (($bits + 7) / 8), $this->level);
+                if ($ver < 0) {
+                    return -1;
+                } elseif ($ver > $this->version) {
+                    $this->version = $ver;
+                } else {
+                    break;
+                }
+            }
+            return $items;
+        }
+
+        /**
+         * Append Padding Bit to bitstream
+         * @param array $bstream
+         * @return array bitstream
+         */
+            protected function appendPaddingBit($bstream) {
+            $bits = count($bstream);
+            $maxwords = $this->getDataLength($this->version, $this->level);
+            $maxbits = $maxwords * 8;
+            if ($maxbits == $bits) {
+                return 0;
+            }
+            if ($maxbits - $bits < 5) {
+                return $this->appendNum($bstream, $maxbits - $bits, 0);
+            }
+            $bits += 4;
+            $words = (int) (($bits + 7) / 8);
+            $padding = array();
+            $padding = $this->appendNum($padding, $words * 8 - $bits + 4, 0);
+            $padlen = $maxwords - $words;
+            if ($padlen > 0) {
+                $padbuf = array();
+                for ($i = 0; $i < $padlen; ++$i) {
+                    $padbuf[$i] = ($i & 1) ? 0x11 : 0xec;
+                }
+                $padding = $this->appendBytes($padding, $padlen, $padbuf);
+            }
+            return $this->appendBitstream($bstream, $padding);
+        }
+
+        /**
+         * mergeBitStream
+         * @param array $bstream
+         * @return array bitstream
+         */
+            protected function mergeBitStream($items) {
+            $items = $this->convertData($items);
+            $bstream = array();
+            foreach ($items as $item) {
+                $bstream = $this->appendBitstream($bstream, $item['bstream']);
+            }
+            return $bstream;
+        }
+
+        /**
+         * Returns a stream of bits.
+         * @param int $items
+         * @return array padded merged byte stream
+         */
+        protected function getBitStream($items) {
+            $bstream = $this->mergeBitStream($items);
+            return $this->appendPaddingBit($bstream);
+        }
+
+        /**
+         * Pack all bit streams padding bits into a byte array.
+         * @param int $items
+         * @return array padded merged byte stream
+         */
+        protected function getByteStream($items) {
+            $bstream = $this->getBitStream($items);
+            return $this->bitstreamToByte($bstream);
+        }
+
+        // - - - - - - - - - - - - - - - - - - - - - - - - -
+
+        // QRbitstream
+
+        /**
+         * Return an array with zeros
+         * @param int $setLength array size
+         * @return array
+         */
+            protected function allocate($setLength) {
+            return array_fill(0, $setLength, 0);
+        }
+
+        /**
+         * Return new bitstream from number
+         * @param int $bits number of bits
+         * @param int $num number
+         * @return array bitstream
+         */
+            protected function newFromNum($bits, $num) {
+            $bstream = $this->allocate($bits);
+            $mask = 1 << ($bits - 1);
+            for ($i = 0; $i < $bits; ++$i) {
+                if ($num & $mask) {
+                    $bstream[$i] = 1;
+                } else {
+                    $bstream[$i] = 0;
+                }
+                $mask = $mask >> 1;
+            }
+            return $bstream;
+        }
+
+        /**
+         * Return new bitstream from bytes
+         * @param int $size size
+         * @param array $data bytes
+         * @return array bitstream
+         */
+            protected function newFromBytes($size, $data) {
+            $bstream = $this->allocate($size * 8);
+            $p = 0;
+            for ($i = 0; $i < $size; ++$i) {
+                $mask = 0x80;
+                for ($j = 0; $j < 8; ++$j) {
+                    if ($data[$i] & $mask) {
+                        $bstream[$p] = 1;
+                    } else {
+                        $bstream[$p] = 0;
+                    }
+                    $p++;
+                    $mask = $mask >> 1;
+                }
+            }
+            return $bstream;
+        }
+
+        /**
+         * Append one bitstream to another
+         * @param array $bitstream original bitstream
+         * @param array $append bitstream to append
+         * @return array bitstream
+         */
+            protected function appendBitstream($bitstream, $append) {
+            if ((!is_array($append)) or (count($append) == 0)) {
+                return $bitstream;
+            }
+            if (count($bitstream) == 0) {
+                return $append;
+            }
+            return array_values(array_merge($bitstream, $append));
+        }
+
+        /**
+         * Append one bitstream created from number to another
+         * @param array $bitstream original bitstream
+         * @param int $bits number of bits
+         * @param int $num number
+         * @return array bitstream
+         */
+            protected function appendNum($bitstream, $bits, $num) {
+            if ($bits == 0) {
+                return 0;
+            }
+            $b = $this->newFromNum($bits, $num);
+            return $this->appendBitstream($bitstream, $b);
+        }
+
+        /**
+         * Append one bitstream created from bytes to another
+         * @param array $bitstream original bitstream
+         * @param int $size size
+         * @param array $data bytes
+         * @return array bitstream
+         */
+            protected function appendBytes($bitstream, $size, $data) {
+            if ($size == 0) {
+                return 0;
+            }
+            $b = $this->newFromBytes($size, $data);
+            return $this->appendBitstream($bitstream, $b);
+        }
+
+        /**
+         * Convert bitstream to bytes
+         * @param array $bitstream original bitstream
+         * @return array of bytes
+         */
+            protected function bitstreamToByte($bstream) {
+            $size = count($bstream);
+            if ($size == 0) {
+                return array();
+            }
+            $data = array_fill(0, (int) (($size + 7) / 8), 0);
+            $bytes = (int) ($size / 8);
+            $p = 0;
+            for ($i = 0; $i < $bytes; $i++) {
+                $v = 0;
+                for ($j = 0; $j < 8; $j++) {
+                    $v = $v << 1;
+                    $v |= $bstream[$p];
+                    $p++;
+                }
+                $data[$i] = $v;
+            }
+            if ($size & 7) {
+                $v = 0;
+                for ($j = 0; $j < ($size & 7); $j++) {
+                    $v = $v << 1;
+                    $v |= $bstream[$p];
+                    $p++;
+                }
+                $data[$bytes] = $v;
+            }
+            return $data;
+        }
+
+        // - - - - - - - - - - - - - - - - - - - - - - - - -
+
+        // QRspec
+
+        /**
+         * Replace a value on the array at the specified position
+         * @param array $srctab
+         * @param int $x X position
+         * @param int $y Y position
+         * @param string $repl value to replace
+         * @param int $replLen length of the repl string
+         * @return array srctab
+         */
+            protected function qrstrset($srctab, $x, $y, $repl, $replLen = false) {
+            $srctab[$y] = substr_replace($srctab[$y], ($replLen !== false) ?substr($repl, 0, $replLen) : $repl, $x, ($replLen !== false) ? $replLen : strlen($repl));
+            return $srctab;
+        }
+
+        /**
+         * Return maximum data code length (bytes) for the version.
+         * @param int $version version
+         * @param int $level error correction level
+         * @return int maximum size (bytes)
+         */
+        protected function getDataLength($version, $level) {
+            return $this->capacity[$version][QRCAP_WORDS] - $this->capacity[$version][QRCAP_EC][$level];
+        }
+
+        /**
+         * Return maximum error correction code length (bytes) for the version.
+         * @param int $version version
+         * @param int $level error correction level
+         * @return int ECC size (bytes)
+         */
+        protected function getECCLength($version, $level) {
+            return $this->capacity[$version][QRCAP_EC][$level];
+        }
+
+        /**
+         * Return the width of the symbol for the version.
+         * @param int $version version
+         * @return int width
+         */
+        protected function getWidth($version) {
+            return $this->capacity[$version][QRCAP_WIDTH];
+        }
+
+        /**
+         * Return the numer of remainder bits.
+         * @param int $version version
+         * @return int number of remainder bits
+         */
+        protected function getRemainder($version) {
+            return $this->capacity[$version][QRCAP_REMINDER];
+        }
+
+        /**
+         * Return a version number that satisfies the input code length.
+         * @param int $size input code length (byte)
+         * @param int $level error correction level
+         * @return int version number
+         */
+        protected function getMinimumVersion($size, $level) {
+            for ($i = 1; $i <= QRSPEC_VERSION_MAX; ++$i) {
+                $words = $this->capacity[$i][QRCAP_WORDS] - $this->capacity[$i][QRCAP_EC][$level];
+                if ($words >= $size) {
+                    return $i;
+                }
+            }
+            return -1;
+        }
+
+        /**
+         * Return the size of length indicator for the mode and version.
+         * @param int $mode encoding mode
+         * @param int $version version
+         * @return int the size of the appropriate length indicator (bits).
+         */
+        protected function lengthIndicator($mode, $version) {
+            if ($mode == QR_MODE_ST) {
+                return 0;
+            }
+            if ($version <= 9) {
+                $l = 0;
+            } elseif ($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+            return $this->lengthTableBits[$mode][$l];
+        }
+
+        /**
+         * Return the maximum length for the mode and version.
+         * @param int $mode encoding mode
+         * @param int $version version
+         * @return int the maximum length (bytes)
+         */
+        protected function maximumWords($mode, $version) {
+            if ($mode == QR_MODE_ST) {
+                return 3;
+            }
+            if ($version <= 9) {
+                $l = 0;
+            } else if ($version <= 26) {
+                $l = 1;
+            } else {
+                $l = 2;
+            }
+            $bits = $this->lengthTableBits[$mode][$l];
+            $words = (1 << $bits) - 1;
+            if ($mode == QR_MODE_KJ) {
+                $words *= 2; // the number of bytes is required
+            }
+            return $words;
+        }
+
+        /**
+         * Return an array of ECC specification.
+         * @param int $version version
+         * @param int $level error correction level
+         * @param array $spec an array of ECC specification contains as following: {# of type1 blocks, # of data code, # of ecc code, # of type2 blocks, # of data code}
+         * @return array spec
+         */
+        protected function getEccSpec($version, $level, $spec) {
+            if (count($spec) < 5) {
+                $spec = array(0, 0, 0, 0, 0);
+            }
+            $b1 = $this->eccTable[$version][$level][0];
+            $b2 = $this->eccTable[$version][$level][1];
+            $data = $this->getDataLength($version, $level);
+            $ecc = $this->getECCLength($version, $level);
+            if ($b2 == 0) {
+                $spec[0] = $b1;
+                $spec[1] = (int) ($data / $b1);
+                $spec[2] = (int) ($ecc / $b1);
+                $spec[3] = 0;
+                $spec[4] = 0;
+            } else {
+                $spec[0] = $b1;
+                $spec[1] = (int) ($data / ($b1 + $b2));
+                $spec[2] = (int) ($ecc / ($b1 + $b2));
+                $spec[3] = $b2;
+                $spec[4] = $spec[1] + 1;
+            }
+            return $spec;
+        }
+
+        /**
+         * Put an alignment marker.
+         * @param array $frame frame
+         * @param int $width width
+         * @param int $ox X center coordinate of the pattern
+         * @param int $oy Y center coordinate of the pattern
+         * @return array frame
+         */
+        protected function putAlignmentMarker($frame, $ox, $oy) {
+            $finder = array(
+                "\xa1\xa1\xa1\xa1\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa0\xa1\xa0\xa1",
+                "\xa1\xa0\xa0\xa0\xa1",
+                "\xa1\xa1\xa1\xa1\xa1"
+                );
+            $yStart = $oy - 2;
+            $xStart = $ox - 2;
+            for ($y = 0; $y < 5; $y++) {
+                $frame = $this->qrstrset($frame, $xStart, $yStart + $y, $finder[$y]);
+            }
+            return $frame;
+        }
+
+        /**
+         * Put an alignment pattern.
+         * @param int $version version
+         * @param array $fram frame
+         * @param int $width width
+         * @return array frame
+         */
+            protected function putAlignmentPattern($version, $frame, $width) {
+            if ($version < 2) {
+                return $frame;
+            }
+            $d = $this->alignmentPattern[$version][1] - $this->alignmentPattern[$version][0];
+            if ($d < 0) {
+                $w = 2;
+            } else {
+                $w = (int) (($width - $this->alignmentPattern[$version][0]) / $d + 2);
+            }
+            if ($w * $w - 3 == 1) {
+                $x = $this->alignmentPattern[$version][0];
+                $y = $this->alignmentPattern[$version][0];
+                $frame = $this->putAlignmentMarker($frame, $x, $y);
+                return $frame;
+            }
+            $cx = $this->alignmentPattern[$version][0];
+            $wo = $w - 1;
+            for ($x = 1; $x < $wo; ++$x) {
+                $frame = $this->putAlignmentMarker($frame, 6, $cx);
+                $frame = $this->putAlignmentMarker($frame, $cx, 6);
+                $cx += $d;
+            }
+            $cy = $this->alignmentPattern[$version][0];
+            for ($y = 0; $y < $wo; ++$y) {
+                $cx = $this->alignmentPattern[$version][0];
+                for ($x = 0; $x < $wo; ++$x) {
+                    $frame = $this->putAlignmentMarker($frame, $cx, $cy);
+                    $cx += $d;
+                }
+                $cy += $d;
+            }
+            return $frame;
+        }
+
+        /**
+         * Return BCH encoded version information pattern that is used for the symbol of version 7 or greater. Use lower 18 bits.
+         * @param int $version version
+         * @return BCH encoded version information pattern
+         */
+        protected function getVersionPattern($version) {
+            if (($version < 7) or ($version > QRSPEC_VERSION_MAX)) {
+                return 0;
+            }
+            return $this->versionPattern[($version - 7)];
+        }
+
+        /**
+         * Return BCH encoded format information pattern.
+         * @param array $mask
+         * @param int $level error correction level
+         * @return BCH encoded format information pattern
+         */
+        protected function getFormatInfo($mask, $level) {
+            if (($mask < 0) or ($mask > 7)) {
+                return 0;
+            }
+            if (($level < 0) or ($level > 3)) {
+                return 0;
+            }
+            return $this->formatInfo[$level][$mask];
+        }
+
+        /**
+         * Put a finder pattern.
+         * @param array $frame frame
+         * @param int $width width
+         * @param int $ox X center coordinate of the pattern
+         * @param int $oy Y center coordinate of the pattern
+         * @return array frame
+         */
+        protected function putFinderPattern($frame, $ox, $oy) {
+            $finder = array(
+            "\xc1\xc1\xc1\xc1\xc1\xc1\xc1",
+            "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+            "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+            "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+            "\xc1\xc0\xc1\xc1\xc1\xc0\xc1",
+            "\xc1\xc0\xc0\xc0\xc0\xc0\xc1",
+            "\xc1\xc1\xc1\xc1\xc1\xc1\xc1"
+            );
+            for ($y = 0; $y < 7; $y++) {
+                $frame = $this->qrstrset($frame, $ox, ($oy + $y), $finder[$y]);
+            }
+            return $frame;
+        }
+
+        /**
+         * Return a copy of initialized frame.
+         * @param int $version version
+         * @return Array of unsigned char.
+         */
+        protected function createFrame($version) {
+            $width = $this->capacity[$version][QRCAP_WIDTH];
+            $frameLine = str_repeat("\0", $width);
+            $frame = array_fill(0, $width, $frameLine);
+            // Finder pattern
+            $frame = $this->putFinderPattern($frame, 0, 0);
+            $frame = $this->putFinderPattern($frame, $width - 7, 0);
+            $frame = $this->putFinderPattern($frame, 0, $width - 7);
+            // Separator
+            $yOffset = $width - 7;
+            for ($y = 0; $y < 7; ++$y) {
+                $frame[$y][7] = "\xc0";
+                $frame[$y][$width - 8] = "\xc0";
+                $frame[$yOffset][7] = "\xc0";
+                ++$yOffset;
+            }
+            $setPattern = str_repeat("\xc0", 8);
+            $frame = $this->qrstrset($frame, 0, 7, $setPattern);
+            $frame = $this->qrstrset($frame, $width - 8, 7, $setPattern);
+            $frame = $this->qrstrset($frame, 0, $width - 8, $setPattern);
+            // Format info
+            $setPattern = str_repeat("\x84", 9);
+            $frame = $this->qrstrset($frame, 0, 8, $setPattern);
+            $frame = $this->qrstrset($frame, $width - 8, 8, $setPattern, 8);
+            $yOffset = $width - 8;
+            for ($y = 0; $y < 8; ++$y, ++$yOffset) {
+                $frame[$y][8] = "\x84";
+                $frame[$yOffset][8] = "\x84";
+            }
+            // Timing pattern
+            $wo = $width - 15;
+            for ($i = 1; $i < $wo; ++$i) {
+                $frame[6][7 + $i] = chr(0x90 | ($i & 1));
+                $frame[7 + $i][6] = chr(0x90 | ($i & 1));
+            }
+            // Alignment pattern
+            $frame = $this->putAlignmentPattern($version, $frame, $width);
+            // Version information
+            if ($version >= 7) {
+                $vinf = $this->getVersionPattern($version);
+                $v = $vinf;
+                for ($x = 0; $x < 6; ++$x) {
+                    for ($y = 0; $y < 3; ++$y) {
+                        $frame[($width - 11) + $y][$x] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+                $v = $vinf;
+                for ($y = 0; $y < 6; ++$y) {
+                    for ($x = 0; $x < 3; ++$x) {
+                        $frame[$y][$x + ($width - 11)] = chr(0x88 | ($v & 1));
+                        $v = $v >> 1;
+                    }
+                }
+            }
+            // and a little bit...
+            $frame[$width - 8][8] = "\x81";
+            return $frame;
+        }
+
+        /**
+         * Set new frame for the specified version.
+         * @param int $version version
+         * @return Array of unsigned char.
+         */
+        protected function newFrame($version) {
+            if (($version < 1) or ($version > QRSPEC_VERSION_MAX)) {
+                return null;
+            }
+            if (!isset($this->frames[$version])) {
+                $this->frames[$version] = $this->createFrame($version);
+            }
+            if (is_null($this->frames[$version])) {
+                return null;
+            }
+            return $this->frames[$version];
+        }
+
+        /**
+         * Return block number 0
+         * @param array $spec
+         * @return int value
+         */
+            protected function rsBlockNum($spec) {
+            return ($spec[0] + $spec[3]);
+        }
+
+        /**
+         * Return block number 1
+         * @param array $spec
+         * @return int value
+         */
+            protected function rsBlockNum1($spec) {
+            return $spec[0];
+        }
+
+        /**
+         * Return data codes 1
+         * @param array $spec
+         * @return int value
+         */
+            protected function rsDataCodes1($spec) {
+            return $spec[1];
+        }
+
+        /**
+         * Return ecc codes 1
+         * @param array $spec
+         * @return int value
+         */
+            protected function rsEccCodes1($spec) {
+            return $spec[2];
+        }
+
+        /**
+         * Return block number 2
+         * @param array $spec
+         * @return int value
+         */
+            protected function rsBlockNum2($spec) {
+            return $spec[3];
+        }
+
+        /**
+         * Return data codes 2
+         * @param array $spec
+         * @return int value
+         */
+            protected function rsDataCodes2($spec) {
+            return $spec[4];
+        }
+
+        /**
+         * Return ecc codes 2
+         * @param array $spec
+         * @return int value
+         */
+            protected function rsEccCodes2($spec) {
+            return $spec[2];
+        }
+
+        /**
+         * Return data length
+         * @param array $spec
+         * @return int value
+         */
+            protected function rsDataLength($spec) {
+            return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]);
+        }
+
+        /**
+         * Return ecc length
+         * @param array $spec
+         * @return int value
+         */
+            protected function rsEccLength($spec) {
+            return ($spec[0] + $spec[3]) * $spec[2];
+        }
+
+        // - - - - - - - - - - - - - - - - - - - - - - - - -
+
+        // QRrs
+
+        /**
+         * Initialize a Reed-Solomon codec and add it to existing rsitems
+         * @param int $symsize symbol size, bits
+         * @param int $gfpoly  Field generator polynomial coefficients
+         * @param int $fcr  first root of RS code generator polynomial, index form
+         * @param int $prim  primitive element to generate polynomial roots
+         * @param int $nroots RS code generator polynomial degree (number of roots)
+         * @param int $pad  padding bytes at front of shortened block
+         * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
+         */
+            protected function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
+            foreach ($this->rsitems as $rs) {
+                if (($rs['pad'] != $pad) or ($rs['nroots'] != $nroots) or ($rs['mm'] != $symsize)
+                    or ($rs['gfpoly'] != $gfpoly) or ($rs['fcr'] != $fcr) or ($rs['prim'] != $prim)) {
+                    continue;
+                }
+                return $rs;
+            }
+            $rs = $this->init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
+            array_unshift($this->rsitems, $rs);
+            return $rs;
+        }
+
+        // - - - - - - - - - - - - - - - - - - - - - - - - -
+
+        // QRrsItem
+
+        /**
+         * modnn
+         * @param array RS values
+         * @param int $x X position
+         * @return int X osition
+         */
+            protected function modnn($rs, $x) {
+            while ($x >= $rs['nn']) {
+                $x -= $rs['nn'];
+                $x = ($x >> $rs['mm']) + ($x & $rs['nn']);
+            }
+            return $x;
+        }
+
+        /**
+         * Initialize a Reed-Solomon codec and returns an array of values.
+         * @param int $symsize symbol size, bits
+         * @param int $gfpoly  Field generator polynomial coefficients
+         * @param int $fcr  first root of RS code generator polynomial, index form
+         * @param int $prim  primitive element to generate polynomial roots
+         * @param int $nroots RS code generator polynomial degree (number of roots)
+         * @param int $pad  padding bytes at front of shortened block
+         * @return array Array of RS values:<ul><li>mm = Bits per symbol;</li><li>nn = Symbols per block;</li><li>alpha_to = log lookup table array;</li><li>index_of = Antilog lookup table array;</li><li>genpoly = Generator polynomial array;</li><li>nroots = Number of generator;</li><li>roots = number of parity symbols;</li><li>fcr = First consecutive root, index form;</li><li>prim = Primitive element, index form;</li><li>iprim = prim-th root of 1, index form;</li><li>pad = Padding bytes in shortened block;</li><li>gfpoly</ul>.
+         */
+        protected function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad) {
+            // Based on Reed solomon encoder by Phil Karn, KA9Q (GNU-LGPLv2)
+            $rs = null;
+            // Check parameter ranges
+            if (($symsize < 0) or ($symsize > 8)) {
+                return $rs;
+            }
+            if (($fcr < 0) or ($fcr >= (1 << $symsize))) {
+                return $rs;
+            }
+            if (($prim <= 0) or ($prim >= (1 << $symsize))) {
+                return $rs;
+            }
+            if (($nroots < 0) or ($nroots >= (1 << $symsize))) {
+                return $rs;
+            }
+            if (($pad < 0) or ($pad >= ((1 << $symsize) - 1 - $nroots))) {
+                return $rs;
+            }
+            $rs = array();
+            $rs['mm'] = $symsize;
+            $rs['nn'] = (1 << $symsize) - 1;
+            $rs['pad'] = $pad;
+            $rs['alpha_to'] = array_fill(0, ($rs['nn'] + 1), 0);
+            $rs['index_of'] = array_fill(0, ($rs['nn'] + 1), 0);
+            // PHP style macro replacement ;)
+            $NN = & $rs['nn'];
+            $A0 = & $NN;
+            // Generate Galois field lookup tables
+            $rs['index_of'][0] = $A0; // log(zero) = -inf
+            $rs['alpha_to'][$A0] = 0; // alpha**-inf = 0
+            $sr = 1;
+            for ($i = 0; $i < $rs['nn']; ++$i) {
+                $rs['index_of'][$sr] = $i;
+                $rs['alpha_to'][$i] = $sr;
+                $sr <<= 1;
+                if ($sr & (1 << $symsize)) {
+                    $sr ^= $gfpoly;
+                }
+                $sr &= $rs['nn'];
+            }
+            if ($sr != 1) {
+                // field generator polynomial is not primitive!
+                return null;
+            }
+            // Form RS code generator polynomial from its roots
+            $rs['genpoly'] = array_fill(0, ($nroots + 1), 0);
+            $rs['fcr'] = $fcr;
+            $rs['prim'] = $prim;
+            $rs['nroots'] = $nroots;
+            $rs['gfpoly'] = $gfpoly;
+            // Find prim-th root of 1, used in decoding
+            for ($iprim = 1; ($iprim % $prim) != 0; $iprim += $rs['nn']) {
+                ; // intentional empty-body loop!
+            }
+            $rs['iprim'] = (int) ($iprim / $prim);
+            $rs['genpoly'][0] = 1;
+
+
+            for ($i = 0, $root = $fcr * $prim; $i < $nroots; $i++, $root += $prim) {
+                $rs['genpoly'][$i + 1] = 1;
+                // Multiply rs->genpoly[] by  @**(root + x)
+                for ($j = $i; $j > 0; --$j) {
+                    if ($rs['genpoly'][$j] != 0) {
+                        $rs['genpoly'][$j] = $rs['genpoly'][$j - 1] ^ $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][$j]] + $root)];
+                    } else {
+                        $rs['genpoly'][$j] = $rs['genpoly'][$j - 1];
+                    }
+                }
+                // rs->genpoly[0] can never be zero
+                $rs['genpoly'][0] = $rs['alpha_to'][$this->modnn($rs, $rs['index_of'][$rs['genpoly'][0]] + $root)];
+            }
+            // convert rs->genpoly[] to index form for quicker encoding
+            for ($i = 0; $i <= $nroots; ++$i) {
+                $rs['genpoly'][$i] = $rs['index_of'][$rs['genpoly'][$i]];
+            }
+            return $rs;
+        }
+
+        /**
+         * Encode a Reed-Solomon codec and returns the parity array
+         * @param array $rs RS values
+         * @param array $data data
+         * @param array $parity parity
+         * @return parity array
+         */
+            protected function encode_rs_char($rs, $data, $parity) {
+            $MM       = & $rs['mm']; // bits per symbol
+            $NN       = & $rs['nn']; // the total number of symbols in a RS block
+            $ALPHA_TO = & $rs['alpha_to']; // the address of an array of NN elements to convert Galois field elements in index (log) form to polynomial form
+            $INDEX_OF = & $rs['index_of']; // the address of an array of NN elements to convert Galois field elements in polynomial form to index (log) form
+            $GENPOLY  = & $rs['genpoly']; // an array of NROOTS+1 elements containing the generator polynomial in index form
+            $NROOTS   = & $rs['nroots']; // the number of roots in the RS code generator polynomial, which is the same as the number of parity symbols in a block
+            $FCR      = & $rs['fcr']; // first consecutive root, index form
+            $PRIM     = & $rs['prim']; // primitive element, index form
+            $IPRIM    = & $rs['iprim']; // prim-th root of 1, index form
+            $PAD      = & $rs['pad']; // the number of pad symbols in a block
+            $A0       = & $NN;
+            $parity = array_fill(0, $NROOTS, 0);
+            for ($i = 0; $i < ($NN - $NROOTS - $PAD); $i++) {
+                $feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
+                if ($feedback != $A0) {
+                    // feedback term is non-zero
+                    // This line is unnecessary when GENPOLY[NROOTS] is unity, as it must
+                    // always be for the polynomials constructed by init_rs()
+                    $feedback = $this->modnn($rs, $NN - $GENPOLY[$NROOTS] + $feedback);
+                    for ($j = 1; $j < $NROOTS; ++$j) {
+                    $parity[$j] ^= $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[($NROOTS - $j)])];
+                    }
+                }
+                // Shift
+                array_shift($parity);
+                if ($feedback != $A0) {
+                    array_push($parity, $ALPHA_TO[$this->modnn($rs, $feedback + $GENPOLY[0])]);
+                } else {
+                    array_push($parity, 0);
+                }
+            }
+            return $parity;
+        }
+
+    } // end QRcode class
 
 } // END OF "class_exists QRcode"
 ?>

Switch Indentation +128 added lines, -128 removed lines

@@ -1461,26 +1461,26 @@ 
 				}
 				$mode = $this->identifyMode(0);
 				switch ($mode) {
-					case QR_MODE_NM: {
-						$length = $this->eatNum();
-						break;
-					}
-					case QR_MODE_AN: {
-						$length = $this->eatAn();
-						break;
-					}
-					case QR_MODE_KJ: {
-						if ($this->hint == QR_MODE_KJ) {
-							$length = $this->eatKanji();
-						} else {
-							$length = $this->eat8();
-						}
-						break;
-					}
-					default: {
+				case QR_MODE_NM: {
+					$length = $this->eatNum();
+					break;
+				}
+				case QR_MODE_AN: {
+					$length = $this->eatAn();
+					break;
+				}
+				case QR_MODE_KJ: {
+					if ($this->hint == QR_MODE_KJ) {
+						$length = $this->eatKanji();
+					} else {
 						$length = $this->eat8();
-						break;
 					}
+					break;
+				}
+				default: {
+					$length = $this->eat8();
+					break;
+				}
 				}
 				if ($length == 0) {
 					return 0;
@@ -1665,29 +1665,29 @@ 
 				$inputitem['bstream'] = $this->appendBitstream($inputitem['bstream'], $st2['bstream']);
 			} else {
 				switch ($inputitem['mode']) {
-					case QR_MODE_NM: {
-						$inputitem = $this->encodeModeNum($inputitem, $version);
-						break;
-					}
-					case QR_MODE_AN: {
-						$inputitem = $this->encodeModeAn($inputitem, $version);
-						break;
-					}
-					case QR_MODE_8B: {
-						$inputitem = $this->encodeMode8($inputitem, $version);
-						break;
-					}
-					case QR_MODE_KJ: {
-						$inputitem = $this->encodeModeKanji($inputitem, $version);
-						break;
-					}
-					case QR_MODE_ST: {
-						$inputitem = $this->encodeModeStructure($inputitem);
-						break;
-					}
-					default: {
-						break;
-					}
+				case QR_MODE_NM: {
+					$inputitem = $this->encodeModeNum($inputitem, $version);
+					break;
+				}
+				case QR_MODE_AN: {
+					$inputitem = $this->encodeModeAn($inputitem, $version);
+					break;
+				}
+				case QR_MODE_8B: {
+					$inputitem = $this->encodeMode8($inputitem, $version);
+					break;
+				}
+				case QR_MODE_KJ: {
+					$inputitem = $this->encodeModeKanji($inputitem, $version);
+					break;
+				}
+				case QR_MODE_ST: {
+					$inputitem = $this->encodeModeStructure($inputitem);
+					break;
+				}
+				default: {
+					break;
+				}
 				}
 			}
 			return $inputitem;
@@ -1774,17 +1774,17 @@ 
 			$w = (int) $size / 3;
 			$bits = $w * 10;
 			switch ($size - $w * 3) {
-				case 1: {
-					$bits += 4;
-					break;
-				}
-				case 2: {
-					$bits += 7;
-					break;
-				}
-				default: {
-					break;
-				}
+			case 1: {
+				$bits += 4;
+				break;
+			}
+			case 2: {
+				$bits += 7;
+				break;
+			}
+			default: {
+				break;
+			}
 			}
 			return $bits;
 		}
@@ -1876,24 +1876,24 @@ 
 				return false;
 			}
 			switch ($mode) {
-				case QR_MODE_NM: {
-					return $this->checkModeNum($size, $data);
-				}
-				case QR_MODE_AN: {
-					return $this->checkModeAn($size, $data);
-				}
-				case QR_MODE_KJ: {
-					return $this->checkModeKanji($size, $data);
-				}
-				case QR_MODE_8B: {
-					return true;
-				}
-				case QR_MODE_ST: {
-					return true;
-				}
-				default: {
-					break;
-				}
+			case QR_MODE_NM: {
+				return $this->checkModeNum($size, $data);
+			}
+			case QR_MODE_AN: {
+				return $this->checkModeAn($size, $data);
+			}
+			case QR_MODE_KJ: {
+				return $this->checkModeKanji($size, $data);
+			}
+			case QR_MODE_8B: {
+				return true;
+			}
+			case QR_MODE_ST: {
+				return true;
+			}
+			default: {
+				break;
+			}
 			}
 			return false;
 		}
@@ -1911,28 +1911,28 @@ 
 			}
 			foreach ($items as $item) {
 				switch ($item['mode']) {
-					case QR_MODE_NM: {
-						$bits = $this->estimateBitsModeNum($item['size']);
-						break;
-					}
-					case QR_MODE_AN: {
-						$bits = $this->estimateBitsModeAn($item['size']);
-						break;
-					}
-					case QR_MODE_8B: {
-						$bits = $this->estimateBitsMode8($item['size']);
-						break;
-					}
-					case QR_MODE_KJ: {
-						$bits = $this->estimateBitsModeKanji($item['size']);
-						break;
-					}
-					case QR_MODE_ST: {
-						return STRUCTURE_HEADER_BITS;
-					}
-					default: {
-						return 0;
-					}
+				case QR_MODE_NM: {
+					$bits = $this->estimateBitsModeNum($item['size']);
+					break;
+				}
+				case QR_MODE_AN: {
+					$bits = $this->estimateBitsModeAn($item['size']);
+					break;
+				}
+				case QR_MODE_8B: {
+					$bits = $this->estimateBitsMode8($item['size']);
+					break;
+				}
+				case QR_MODE_KJ: {
+					$bits = $this->estimateBitsModeKanji($item['size']);
+					break;
+				}
+				case QR_MODE_ST: {
+					return STRUCTURE_HEADER_BITS;
+				}
+				default: {
+					return 0;
+				}
 				}
 				$l = $this->lengthIndicator($item['mode'], $version);
 				$m = 1 << $l;
@@ -1971,42 +1971,42 @@ 
 		 protected function lengthOfCode($mode, $version, $bits) {
 			$payload = $bits - 4 - $this->lengthIndicator($mode, $version);
 			switch ($mode) {
-				case QR_MODE_NM: {
-					$chunks = (int) ($payload / 10);
-					$remain = $payload - $chunks * 10;
-					$size = $chunks * 3;
-					if ($remain >= 7) {
-						$size += 2;
-					} elseif ($remain >= 4) {
-						$size += 1;
-					}
-					break;
-				}
-				case QR_MODE_AN: {
-					$chunks = (int) ($payload / 11);
-					$remain = $payload - $chunks * 11;
-					$size = $chunks * 2;
-					if ($remain >= 6) {
-						++$size;
-					}
-					break;
-				}
-				case QR_MODE_8B: {
-					$size = (int) ($payload / 8);
-					break;
-				}
-				case QR_MODE_KJ: {
-					$size = (int) (($payload / 13) * 2);
-					break;
-				}
-				case QR_MODE_ST: {
-					$size = (int) ($payload / 8);
-					break;
-				}
-				default: {
-					$size = 0;
-					break;
-				}
+			case QR_MODE_NM: {
+				$chunks = (int) ($payload / 10);
+				$remain = $payload - $chunks * 10;
+				$size = $chunks * 3;
+				if ($remain >= 7) {
+					$size += 2;
+				} elseif ($remain >= 4) {
+					$size += 1;
+				}
+				break;
+			}
+			case QR_MODE_AN: {
+				$chunks = (int) ($payload / 11);
+				$remain = $payload - $chunks * 11;
+				$size = $chunks * 2;
+				if ($remain >= 6) {
+					++$size;
+				}
+				break;
+			}
+			case QR_MODE_8B: {
+				$size = (int) ($payload / 8);
+				break;
+			}
+			case QR_MODE_KJ: {
+				$size = (int) (($payload / 13) * 2);
+				break;
+			}
+			case QR_MODE_ST: {
+				$size = (int) ($payload / 8);
+				break;
+			}
+			default: {
+				$size = 0;
+				break;
+			}
 			}
 			$maxsize = $this->maximumWords($mode, $version);
 			if ($size < 0) {

lib/phpqrcode/qrrscode.php

Spacing +21 added lines, -21 removed lines

@@ -63,59 +63,59 @@ 
             $rs = null;

             

             // Check parameter ranges

-            if($symsize < 0 || $symsize > 8) {
+            if ($symsize < 0 || $symsize > 8) {
                 return $rs;
             }
-            if($fcr < 0 || $fcr >= (1<<$symsize)) {
+            if ($fcr < 0 || $fcr >= (1 << $symsize)) {
                 return $rs;
             }
-            if($prim <= 0 || $prim >= (1<<$symsize)) {
+            if ($prim <= 0 || $prim >= (1 << $symsize)) {
                 return $rs;
             }
-            if($nroots < 0 || $nroots >= (1<<$symsize)) {
+            if ($nroots < 0 || $nroots >= (1 << $symsize)) {
                 return $rs;
             }
             // Can't have more roots than symbol values!

-            if($pad < 0 || $pad >= ((1<<$symsize) -1 - $nroots)) {
+            if ($pad < 0 || $pad >= ((1 << $symsize) - 1 - $nroots)) {
                 return $rs;
             }
             // Too much padding

 

             $rs = new QRrsItem();

             $rs->mm = $symsize;

-            $rs->nn = (1<<$symsize)-1;

+            $rs->nn = (1 << $symsize) - 1;

             $rs->pad = $pad;

 

-            $rs->alpha_to = array_fill(0, $rs->nn+1, 0);

-            $rs->index_of = array_fill(0, $rs->nn+1, 0);

+            $rs->alpha_to = array_fill(0, $rs->nn + 1, 0);

+            $rs->index_of = array_fill(0, $rs->nn + 1, 0);

           

             // PHP style macro replacement ;)

-            $NN =& $rs->nn;

-            $A0 =& $NN;

+            $NN = & $rs->nn;

+            $A0 = & $NN;

             

             // Generate Galois field lookup tables

             $rs->index_of[0] = $A0; // log(zero) = -inf

             $rs->alpha_to[$A0] = 0; // alpha**-inf = 0

             $sr = 1;

           

-            for($i=0; $i<$rs->nn; $i++) {

+            for ($i = 0; $i < $rs->nn; $i++) {

                 $rs->index_of[$sr] = $i;

                 $rs->alpha_to[$i] = $sr;

                 $sr <<= 1;

-                if($sr & (1<<$symsize)) {

+                if ($sr & (1 << $symsize)) {

                     $sr ^= $gfpoly;

                 }

                 $sr &= $rs->nn;

             }

             

-            if($sr != 1){

+            if ($sr != 1) {

                 // field generator polynomial is not primitive!

                 $rs = null;

                 return $rs;

             }

 

             /* Form RS code generator polynomial from its roots */

-            $rs->genpoly = array_fill(0, $nroots+1, 0);

+            $rs->genpoly = array_fill(0, $nroots + 1, 0);

         

             $rs->fcr = $fcr;

             $rs->prim = $prim;

@@ -204,23 +204,23 @@ 
         //----------------------------------------------------------------------

         public static function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad)

         {

-            foreach(self::$items as $rs) {

-                if($rs->pad != $pad) {
+            foreach (self::$items as $rs) {

+                if ($rs->pad != $pad) {
                     continue;
                 }
-                if($rs->nroots != $nroots) {
+                if ($rs->nroots != $nroots) {
                     continue;
                 }
-                if($rs->mm != $symsize) {
+                if ($rs->mm != $symsize) {
                     continue;
                 }
-                if($rs->gfpoly != $gfpoly) {
+                if ($rs->gfpoly != $gfpoly) {
                     continue;
                 }
-                if($rs->fcr != $fcr) {
+                if ($rs->fcr != $fcr) {
                     continue;
                 }
-                if($rs->prim != $prim) {
+                if ($rs->prim != $prim) {
                     continue;
                 }
 

prefs.php

Indentation +45 added lines, -45 removed lines

@@ -1,31 +1,31 @@ 
 <?php
-	if (file_exists("install") && !file_exists("config.php")) {
-		header("Location: install/");
-	}
+    if (file_exists("install") && !file_exists("config.php")) {
+        header("Location: install/");
+    }
 
-	set_include_path(dirname(__FILE__)."/include".PATH_SEPARATOR.
-		get_include_path());
+    set_include_path(dirname(__FILE__)."/include".PATH_SEPARATOR.
+        get_include_path());
 
-	if (!file_exists("config.php")) {
-		print "<b>Fatal Error</b>: You forgot to copy
+    if (!file_exists("config.php")) {
+        print "<b>Fatal Error</b>: You forgot to copy
 		<b>config.php-dist</b> to <b>config.php</b> and edit it.\n";
-		exit;
-	}
+        exit;
+    }
 
-	require_once "autoload.php";
-	require_once "sessions.php";
-	require_once "functions.php";
-	require_once "sanity_check.php";
-	require_once "config.php";
-	require_once "db-prefs.php";
+    require_once "autoload.php";
+    require_once "sessions.php";
+    require_once "functions.php";
+    require_once "sanity_check.php";
+    require_once "config.php";
+    require_once "db-prefs.php";
 
-	if (!init_plugins()) {
-	    return;
-	}
+    if (!init_plugins()) {
+        return;
+    }
 
-	login_sequence();
+    login_sequence();
 
-	header('Content-Type: text/html; charset=utf-8');
+    header('Content-Type: text/html; charset=utf-8');
 ?>
 <!DOCTYPE html>
 <html>
@@ -34,12 +34,12 @@ 
     <meta name="viewport" content="initial-scale=1,width=device-width" />
 
 	<?php if ($_SESSION["uid"]) {
-		$theme = get_pref("USER_CSS_THEME", false, false);
-		if ($theme && theme_exists("$theme")) {
-			echo stylesheet_tag(get_theme_path($theme), 'theme_css');
-		}
-	}
-	?>
+        $theme = get_pref("USER_CSS_THEME", false, false);
+        if ($theme && theme_exists("$theme")) {
+            echo stylesheet_tag(get_theme_path($theme), 'theme_css');
+        }
+    }
+    ?>
 
 	<?php print_user_stylesheet() ?>
 
@@ -58,17 +58,17 @@ 
 	</script>
 
 	<?php
-	foreach (array("lib/prototype.js",
-				"lib/scriptaculous/scriptaculous.js?load=effects,controls",
-				"lib/dojo/dojo.js",
-				"lib/dojo/tt-rss-layer.js",
-				"js/common.js",
-				"js/prefs.js",
-				"errors.php?mode=js") as $jsfile) {
+    foreach (array("lib/prototype.js",
+                "lib/scriptaculous/scriptaculous.js?load=effects,controls",
+                "lib/dojo/dojo.js",
+                "lib/dojo/tt-rss-layer.js",
+                "js/common.js",
+                "js/prefs.js",
+                "errors.php?mode=js") as $jsfile) {
 
-		echo javascript_tag($jsfile);
+        echo javascript_tag($jsfile);
 
-	} ?>
+    } ?>
 
     <script type="text/javascript">
 		require({cache:{}});
@@ -76,22 +76,22 @@ 
 
 	<script type="text/javascript">
 	<?php
-		foreach (PluginHost::getInstance()->get_plugins() as $n => $p) {
-			if (method_exists($p, "get_prefs_js")) {
-				$script = $p->get_prefs_js();
+        foreach (PluginHost::getInstance()->get_plugins() as $n => $p) {
+            if (method_exists($p, "get_prefs_js")) {
+                $script = $p->get_prefs_js();
 
-				if ($script) {
-					echo "try {
+                if ($script) {
+                    echo "try {
 					    $script
 					} catch (e) {
                         console.warn('failed to initialize plugin JS: $n', e);
                     }";
-				}
-			}
-		}
+                }
+            }
+        }
 
-		init_js_translations();
-	?>
+        init_js_translations();
+    ?>
 	</script>
 
 	<style type="text/css">

lib/phpqrcode/qrconfig.php

Indentation +1 added lines, -1 removed lines

@@ -14,4 +14,4 @@
     define('QR_DEFAULT_MASK', 2); // when QR_FIND_BEST_MASK === false

                                                   

     define('QR_PNG_MAXIMUM_SIZE', 1024); // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images

-                                                  
\ No newline at end of file
+                                                    
\ No newline at end of file