From 824f8c45edb20e27221e92805b0090f1768a2756 Mon Sep 17 00:00:00 2001 From: tcit Date: Sat, 27 Sep 2014 19:34:17 +0200 Subject: changed mpdf with tcpdf --- .../tcpdf/include/barcodes/datamatrix.php | 1176 ++++++++++++++++++++ 1 file changed, 1176 insertions(+) create mode 100644 inc/3rdparty/libraries/tcpdf/include/barcodes/datamatrix.php (limited to 'inc/3rdparty/libraries/tcpdf/include/barcodes/datamatrix.php') diff --git a/inc/3rdparty/libraries/tcpdf/include/barcodes/datamatrix.php b/inc/3rdparty/libraries/tcpdf/include/barcodes/datamatrix.php new file mode 100644 index 00000000..c1067299 --- /dev/null +++ b/inc/3rdparty/libraries/tcpdf/include/barcodes/datamatrix.php @@ -0,0 +1,1176 @@ +. +// +// See LICENSE.TXT file for more information. +// ------------------------------------------------------------------- +// +// DESCRIPTION : +// +// Class to create DataMatrix ECC 200 barcode arrays for TCPDF class. +// DataMatrix (ISO/IEC 16022:2006) is a 2-dimensional bar code. +//============================================================+ + +/** +* @file +* Class to create DataMatrix ECC 200 barcode arrays for TCPDF class. +* DataMatrix (ISO/IEC 16022:2006) is a 2-dimensional bar code. +* +* @package com.tecnick.tcpdf +* @author Nicola Asuni +* @version 1.0.008 +*/ + +// custom definitions +if (!defined('DATAMATRIXDEFS')) { + + /** + * Indicate that definitions for this class are set + */ + define('DATAMATRIXDEFS', true); + + // ----------------------------------------------------- + +} // end of custom definitions + +// #*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*# + + +/** +* ASCII encoding: ASCII character 0 to 127 (1 byte per CW) +*/ +define('ENC_ASCII', 0); + +/** +* C40 encoding: Upper-case alphanumeric (3/2 bytes per CW) +*/ +define('ENC_C40', 1); + +/** +* TEXT encoding: Lower-case alphanumeric (3/2 bytes per CW) +*/ +define('ENC_TXT', 2); + +/** +* X12 encoding: ANSI X12 (3/2 byte per CW) +*/ +define('ENC_X12', 3); + +/** +* EDIFACT encoding: ASCII character 32 to 94 (4/3 bytes per CW) +*/ +define('ENC_EDF', 4); + +/** +* BASE 256 encoding: ASCII character 0 to 255 (1 byte per CW) +*/ +define('ENC_BASE256', 5); + +/** +* ASCII extended encoding: ASCII character 128 to 255 (1/2 byte per CW) +*/ +define('ENC_ASCII_EXT', 6); + +/** +* ASCII number encoding: ASCII digits (2 bytes per CW) +*/ +define('ENC_ASCII_NUM', 7); + +/** +* @class Datamatrix +* Class to create DataMatrix ECC 200 barcode arrays for TCPDF class. +* DataMatrix (ISO/IEC 16022:2006) is a 2-dimensional bar code. +* +* @package com.tecnick.tcpdf +* @author Nicola Asuni +* @version 1.0.004 +*/ +class Datamatrix { + + /** + * Barcode array to be returned which is readable by TCPDF. + * @protected + */ + protected $barcode_array = array(); + + /** + * Store last used encoding for data codewords. + * @protected + */ + protected $last_enc = ENC_ASCII; + + /** + * Table of Data Matrix ECC 200 Symbol Attributes: + * @protected + */ + protected $symbattr = array( + // square form --------------------------------------------------------------------------------------- + array(0x00a,0x00a,0x008,0x008,0x00a,0x00a,0x008,0x008,0x001,0x001,0x001,0x003,0x005,0x001,0x003,0x005), // 10x10 + array(0x00c,0x00c,0x00a,0x00a,0x00c,0x00c,0x00a,0x00a,0x001,0x001,0x001,0x005,0x007,0x001,0x005,0x007), // 12x12 + array(0x00e,0x00e,0x00c,0x00c,0x00e,0x00e,0x00c,0x00c,0x001,0x001,0x001,0x008,0x00a,0x001,0x008,0x00a), // 14x14 + array(0x010,0x010,0x00e,0x00e,0x010,0x010,0x00e,0x00e,0x001,0x001,0x001,0x00c,0x00c,0x001,0x00c,0x00c), // 16x16 + array(0x012,0x012,0x010,0x010,0x012,0x012,0x010,0x010,0x001,0x001,0x001,0x012,0x00e,0x001,0x012,0x00e), // 18x18 + array(0x014,0x014,0x012,0x012,0x014,0x014,0x012,0x012,0x001,0x001,0x001,0x016,0x012,0x001,0x016,0x012), // 20x20 + array(0x016,0x016,0x014,0x014,0x016,0x016,0x014,0x014,0x001,0x001,0x001,0x01e,0x014,0x001,0x01e,0x014), // 22x22 + array(0x018,0x018,0x016,0x016,0x018,0x018,0x016,0x016,0x001,0x001,0x001,0x024,0x018,0x001,0x024,0x018), // 24x24 + array(0x01a,0x01a,0x018,0x018,0x01a,0x01a,0x018,0x018,0x001,0x001,0x001,0x02c,0x01c,0x001,0x02c,0x01c), // 26x26 + array(0x020,0x020,0x01c,0x01c,0x010,0x010,0x00e,0x00e,0x002,0x002,0x004,0x03e,0x024,0x001,0x03e,0x024), // 32x32 + array(0x024,0x024,0x020,0x020,0x012,0x012,0x010,0x010,0x002,0x002,0x004,0x056,0x02a,0x001,0x056,0x02a), // 36x36 + array(0x028,0x028,0x024,0x024,0x014,0x014,0x012,0x012,0x002,0x002,0x004,0x072,0x030,0x001,0x072,0x030), // 40x40 + array(0x02c,0x02c,0x028,0x028,0x016,0x016,0x014,0x014,0x002,0x002,0x004,0x090,0x038,0x001,0x090,0x038), // 44x44 + array(0x030,0x030,0x02c,0x02c,0x018,0x018,0x016,0x016,0x002,0x002,0x004,0x0ae,0x044,0x001,0x0ae,0x044), // 48x48 + array(0x034,0x034,0x030,0x030,0x01a,0x01a,0x018,0x018,0x002,0x002,0x004,0x0cc,0x054,0x002,0x066,0x02a), // 52x52 + array(0x040,0x040,0x038,0x038,0x010,0x010,0x00e,0x00e,0x004,0x004,0x010,0x118,0x070,0x002,0x08c,0x038), // 64x64 + array(0x048,0x048,0x040,0x040,0x012,0x012,0x010,0x010,0x004,0x004,0x010,0x170,0x090,0x004,0x05c,0x024), // 72x72 + array(0x050,0x050,0x048,0x048,0x014,0x014,0x012,0x012,0x004,0x004,0x010,0x1c8,0x0c0,0x004,0x072,0x030), // 80x80 + array(0x058,0x058,0x050,0x050,0x016,0x016,0x014,0x014,0x004,0x004,0x010,0x240,0x0e0,0x004,0x090,0x038), // 88x88 + array(0x060,0x060,0x058,0x058,0x018,0x018,0x016,0x016,0x004,0x004,0x010,0x2b8,0x110,0x004,0x0ae,0x044), // 96x96 + array(0x068,0x068,0x060,0x060,0x01a,0x01a,0x018,0x018,0x004,0x004,0x010,0x330,0x150,0x006,0x088,0x038), // 104x104 + array(0x078,0x078,0x06c,0x06c,0x014,0x014,0x012,0x012,0x006,0x006,0x024,0x41a,0x198,0x006,0x0af,0x044), // 120x120 + array(0x084,0x084,0x078,0x078,0x016,0x016,0x014,0x014,0x006,0x006,0x024,0x518,0x1f0,0x008,0x0a3,0x03e), // 132x132 + array(0x090,0x090,0x084,0x084,0x018,0x018,0x016,0x016,0x006,0x006,0x024,0x616,0x26c,0x00a,0x09c,0x03e), // 144x144 + // rectangular form (currently unused) --------------------------------------------------------------------------- + array(0x008,0x012,0x006,0x010,0x008,0x012,0x006,0x010,0x001,0x001,0x001,0x005,0x007,0x001,0x005,0x007), // 8x18 + array(0x008,0x020,0x006,0x01c,0x008,0x010,0x006,0x00e,0x001,0x002,0x002,0x00a,0x00b,0x001,0x00a,0x00b), // 8x32 + array(0x00c,0x01a,0x00a,0x018,0x00c,0x01a,0x00a,0x018,0x001,0x001,0x001,0x010,0x00e,0x001,0x010,0x00e), // 12x26 + array(0x00c,0x024,0x00a,0x020,0x00c,0x012,0x00a,0x010,0x001,0x002,0x002,0x00c,0x012,0x001,0x00c,0x012), // 12x36 + array(0x010,0x024,0x00e,0x020,0x010,0x012,0x00e,0x010,0x001,0x002,0x002,0x020,0x018,0x001,0x020,0x018), // 16x36 + array(0x010,0x030,0x00e,0x02c,0x010,0x018,0x00e,0x016,0x001,0x002,0x002,0x031,0x01c,0x001,0x031,0x01c) // 16x48 + ); + + /** + * Map encodation modes whit character sets. + * @protected + */ + protected $chset_id = array(ENC_C40 => 'C40', ENC_TXT => 'TXT', ENC_X12 =>'X12'); + + /** + * Basic set of characters for each encodation mode. + * @protected + */ + protected $chset = array( + 'C40' => array( // Basic set for C40 ---------------------------------------------------------------------------- + 'S1'=>0x00,'S2'=>0x01,'S3'=>0x02,0x20=>0x03,0x30=>0x04,0x31=>0x05,0x32=>0x06,0x33=>0x07,0x34=>0x08,0x35=>0x09, // + 0x36=>0x0a,0x37=>0x0b,0x38=>0x0c,0x39=>0x0d,0x41=>0x0e,0x42=>0x0f,0x43=>0x10,0x44=>0x11,0x45=>0x12,0x46=>0x13, // + 0x47=>0x14,0x48=>0x15,0x49=>0x16,0x4a=>0x17,0x4b=>0x18,0x4c=>0x19,0x4d=>0x1a,0x4e=>0x1b,0x4f=>0x1c,0x50=>0x1d, // + 0x51=>0x1e,0x52=>0x1f,0x53=>0x20,0x54=>0x21,0x55=>0x22,0x56=>0x23,0x57=>0x24,0x58=>0x25,0x59=>0x26,0x5a=>0x27),// + 'TXT' => array( // Basic set for TEXT --------------------------------------------------------------------------- + 'S1'=>0x00,'S2'=>0x01,'S3'=>0x02,0x20=>0x03,0x30=>0x04,0x31=>0x05,0x32=>0x06,0x33=>0x07,0x34=>0x08,0x35=>0x09, // + 0x36=>0x0a,0x37=>0x0b,0x38=>0x0c,0x39=>0x0d,0x61=>0x0e,0x62=>0x0f,0x63=>0x10,0x64=>0x11,0x65=>0x12,0x66=>0x13, // + 0x67=>0x14,0x68=>0x15,0x69=>0x16,0x6a=>0x17,0x6b=>0x18,0x6c=>0x19,0x6d=>0x1a,0x6e=>0x1b,0x6f=>0x1c,0x70=>0x1d, // + 0x71=>0x1e,0x72=>0x1f,0x73=>0x20,0x74=>0x21,0x75=>0x22,0x76=>0x23,0x77=>0x24,0x78=>0x25,0x79=>0x26,0x7a=>0x27),// + 'SH1' => array( // Shift 1 set ---------------------------------------------------------------------------------- + 0x00=>0x00,0x01=>0x01,0x02=>0x02,0x03=>0x03,0x04=>0x04,0x05=>0x05,0x06=>0x06,0x07=>0x07,0x08=>0x08,0x09=>0x09, // + 0x0a=>0x0a,0x0b=>0x0b,0x0c=>0x0c,0x0d=>0x0d,0x0e=>0x0e,0x0f=>0x0f,0x10=>0x10,0x11=>0x11,0x12=>0x12,0x13=>0x13, // + 0x14=>0x14,0x15=>0x15,0x16=>0x16,0x17=>0x17,0x18=>0x18,0x19=>0x19,0x1a=>0x1a,0x1b=>0x1b,0x1c=>0x1c,0x1d=>0x1d, // + 0x1e=>0x1e,0x1f=>0x1f), // + 'SH2' => array( // Shift 2 set ---------------------------------------------------------------------------------- + 0x21=>0x00,0x22=>0x01,0x23=>0x02,0x24=>0x03,0x25=>0x04,0x26=>0x05,0x27=>0x06,0x28=>0x07,0x29=>0x08,0x2a=>0x09, // + 0x2b=>0x0a,0x2c=>0x0b,0x2d=>0x0c,0x2e=>0x0d,0x2f=>0x0e,0x3a=>0x0f,0x3b=>0x10,0x3c=>0x11,0x3d=>0x12,0x3e=>0x13, // + 0x3f=>0x14,0x40=>0x15,0x5b=>0x16,0x5c=>0x17,0x5d=>0x18,0x5e=>0x19,0x5f=>0x1a,'F1'=>0x1b,'US'=>0x1e), // + 'S3C' => array( // Shift 3 set for C40 -------------------------------------------------------------------------- + 0x60=>0x00,0x61=>0x01,0x62=>0x02,0x63=>0x03,0x64=>0x04,0x65=>0x05,0x66=>0x06,0x67=>0x07,0x68=>0x08,0x69=>0x09, // + 0x6a=>0x0a,0x6b=>0x0b,0x6c=>0x0c,0x6d=>0x0d,0x6e=>0x0e,0x6f=>0x0f,0x70=>0x10,0x71=>0x11,0x72=>0x12,0x73=>0x13, // + 0x74=>0x14,0x75=>0x15,0x76=>0x16,0x77=>0x17,0x78=>0x18,0x79=>0x19,0x7a=>0x1a,0x7b=>0x1b,0x7c=>0x1c,0x7d=>0x1d, // + 0x7e=>0x1e,0x7f=>0x1f), + 'S3T' => array( // Shift 3 set for TEXT ------------------------------------------------------------------------- + 0x60=>0x00,0x41=>0x01,0x42=>0x02,0x43=>0x03,0x44=>0x04,0x45=>0x05,0x46=>0x06,0x47=>0x07,0x48=>0x08,0x49=>0x09, // + 0x4a=>0x0a,0x4b=>0x0b,0x4c=>0x0c,0x4d=>0x0d,0x4e=>0x0e,0x4f=>0x0f,0x50=>0x10,0x51=>0x11,0x52=>0x12,0x53=>0x13, // + 0x54=>0x14,0x55=>0x15,0x56=>0x16,0x57=>0x17,0x58=>0x18,0x59=>0x19,0x5a=>0x1a,0x7b=>0x1b,0x7c=>0x1c,0x7d=>0x1d, // + 0x7e=>0x1e,0x7f=>0x1f), // + 'X12' => array( // Set for X12 ---------------------------------------------------------------------------------- + 0x0d=>0x00,0x2a=>0x01,0x3e=>0x02,0x20=>0x03,0x30=>0x04,0x31=>0x05,0x32=>0x06,0x33=>0x07,0x34=>0x08,0x35=>0x09, // + 0x36=>0x0a,0x37=>0x0b,0x38=>0x0c,0x39=>0x0d,0x41=>0x0e,0x42=>0x0f,0x43=>0x10,0x44=>0x11,0x45=>0x12,0x46=>0x13, // + 0x47=>0x14,0x48=>0x15,0x49=>0x16,0x4a=>0x17,0x4b=>0x18,0x4c=>0x19,0x4d=>0x1a,0x4e=>0x1b,0x4f=>0x1c,0x50=>0x1d, // + 0x51=>0x1e,0x52=>0x1f,0x53=>0x20,0x54=>0x21,0x55=>0x22,0x56=>0x23,0x57=>0x24,0x58=>0x25,0x59=>0x26,0x5a=>0x27) // + ); + +// ----------------------------------------------------------------------------- + + /** + * This is the class constructor. + * Creates a datamatrix object + * @param $code (string) Code to represent using Datamatrix. + * @public + */ + public function __construct($code) { + $barcode_array = array(); + if ((is_null($code)) OR ($code == '\0') OR ($code == '')) { + return false; + } + // get data codewords + $cw = $this->getHighLevelEncoding($code); + // number of data codewords + $nd = count($cw); + // check size + if ($nd > 1558) { + return false; + } + // get minimum required matrix size. + foreach ($this->symbattr as $params) { + if ($params[11] >= $nd) { + break; + } + } + if ($params[11] < $nd) { + // too much data + return false; + } elseif ($params[11] > $nd) { + // add padding + if ((($params[11] - $nd) > 1) AND ($cw[($nd - 1)] != 254)) { + if ($this->last_enc == ENC_EDF) { + // switch to ASCII encoding + $cw[] = 124; + ++$nd; + } elseif (($this->last_enc != ENC_ASCII) AND ($this->last_enc != ENC_BASE256)) { + // switch to ASCII encoding + $cw[] = 254; + ++$nd; + } + } + if ($params[11] > $nd) { + // add first pad + $cw[] = 129; + ++$nd; + // add remaining pads + for ($i = $nd; $i < $params[11]; ++$i) { + $cw[] = $this->get253StateCodeword(129, $i); + } + } + } + // add error correction codewords + $cw = $this->getErrorCorrection($cw, $params[13], $params[14], $params[15]); + // initialize empty arrays + $grid = array_fill(0, ($params[2] * $params[3]), 0); + // get placement map + $places = $this->getPlacementMap($params[2], $params[3]); + // fill the grid with data + $grid = array(); + $i = 0; + // region data row max index + $rdri = ($params[4] - 1); + // region data column max index + $rdci = ($params[5] - 1); + // for each vertical region + for ($vr = 0; $vr < $params[9]; ++$vr) { + // for each row on region + for ($r = 0; $r < $params[4]; ++$r) { + // get row + $row = (($vr * $params[4]) + $r); + // for each horizontal region + for ($hr = 0; $hr < $params[8]; ++$hr) { + // for each column on region + for ($c = 0; $c < $params[5]; ++$c) { + // get column + $col = (($hr * $params[5]) + $c); + // braw bits by case + if ($r == 0) { + // top finder pattern + if ($c % 2) { + $grid[$row][$col] = 0; + } else { + $grid[$row][$col] = 1; + } + } elseif ($r == $rdri) { + // bottom finder pattern + $grid[$row][$col] = 1; + } elseif ($c == 0) { + // left finder pattern + $grid[$row][$col] = 1; + } elseif ($c == $rdci) { + // right finder pattern + if ($r % 2) { + $grid[$row][$col] = 1; + } else { + $grid[$row][$col] = 0; + } + } else { // data bit + if ($places[$i] < 2) { + $grid[$row][$col] = $places[$i]; + } else { + // codeword ID + $cw_id = (floor($places[$i] / 10) - 1); + // codeword BIT mask + $cw_bit = pow(2, (8 - ($places[$i] % 10))); + $grid[$row][$col] = (($cw[$cw_id] & $cw_bit) == 0) ? 0 : 1; + } + ++$i; + } + } + } + } + } + $this->barcode_array['num_rows'] = $params[0]; + $this->barcode_array['num_cols'] = $params[1]; + $this->barcode_array['bcode'] = $grid; + } + + /** + * Returns a barcode array which is readable by TCPDF + * @return array barcode array readable by TCPDF; + * @public + */ + public function getBarcodeArray() { + return $this->barcode_array; + } + + /** + * Product of two numbers in a Power-of-Two Galois Field + * @param $a (int) first number to multiply. + * @param $b (int) second number to multiply. + * @param $log (array) Log table. + * @param $alog (array) Anti-Log table. + * @param $gf (array) Number of Factors of the Reed-Solomon polynomial. + * @return int product + * @protected + */ + protected function getGFProduct($a, $b, $log, $alog, $gf) { + if (($a == 0) OR ($b == 0)) { + return 0; + } + return ($alog[($log[$a] + $log[$b]) % ($gf - 1)]); + } + + /** + * Add error correction codewords to data codewords array (ANNEX E). + * @param $wd (array) Array of datacodewords. + * @param $nb (int) Number of blocks. + * @param $nd (int) Number of data codewords per block. + * @param $nc (int) Number of correction codewords per block. + * @param $gf (int) numner of fields on log/antilog table (power of 2). + * @param $pp (int) The value of its prime modulus polynomial (301 for ECC200). + * @return array data codewords + error codewords + * @protected + */ + protected function getErrorCorrection($wd, $nb, $nd, $nc, $gf=256, $pp=301) { + // generate the log ($log) and antilog ($alog) tables + $log[0] = 0; + $alog[0] = 1; + for ($i = 1; $i < $gf; ++$i) { + $alog[$i] = ($alog[($i - 1)] * 2); + if ($alog[$i] >= $gf) { + $alog[$i] ^= $pp; + } + $log[$alog[$i]] = $i; + } + ksort($log); + // generate the polynomial coefficients (c) + $c = array_fill(0, ($nc + 1), 0); + $c[0] = 1; + for ($i = 1; $i <= $nc; ++$i) { + $c[$i] = $c[($i-1)]; + for ($j = ($i - 1); $j >= 1; --$j) { + $c[$j] = $c[($j - 1)] ^ $this->getGFProduct($c[$j], $alog[$i], $log, $alog, $gf); + } + $c[0] = $this->getGFProduct($c[0], $alog[$i], $log, $alog, $gf); + } + ksort($c); + // total number of data codewords + $num_wd = ($nb * $nd); + // total number of error codewords + $num_we = ($nb * $nc); + // for each block + for ($b = 0; $b < $nb; ++$b) { + // create interleaved data block + $block = array(); + for ($n = $b; $n < $num_wd; $n += $nb) { + $block[] = $wd[$n]; + } + // initialize error codewords + $we = array_fill(0, ($nc + 1), 0); + // calculate error correction codewords for this block + for ($i = 0; $i < $nd; ++$i) { + $k = ($we[0] ^ $block[$i]); + for ($j = 0; $j < $nc; ++$j) { + $we[$j] = ($we[($j + 1)] ^ $this->getGFProduct($k, $c[($nc - $j - 1)], $log, $alog, $gf)); + } + } + // add error codewords at the end of data codewords + $j = 0; + for ($i = $b; $i < $num_we; $i += $nb) { + $wd[($num_wd + $i)] = $we[$j]; + ++$j; + } + } + // reorder codewords + ksort($wd); + return $wd; + } + + /** + * Return the 253-state codeword + * @param $cwpad (int) Pad codeword. + * @param $cwpos (int) Number of data codewords from the beginning of encoded data. + * @return pad codeword + * @protected + */ + protected function get253StateCodeword($cwpad, $cwpos) { + $pad = ($cwpad + (((149 * $cwpos) % 253) + 1)); + if ($pad > 254) { + $pad -= 254; + } + return $pad; + } + + /** + * Return the 255-state codeword + * @param $cwpad (int) Pad codeword. + * @param $cwpos (int) Number of data codewords from the beginning of encoded data. + * @return pad codeword + * @protected + */ + protected function get255StateCodeword($cwpad, $cwpos) { + $pad = ($cwpad + (((149 * $cwpos) % 255) + 1)); + if ($pad > 255) { + $pad -= 256; + } + return $pad; + } + + /** + * Returns true if the char belongs to the selected mode + * @param $chr (int) Character (byte) to check. + * @param $mode (int) Current encoding mode. + * @return boolean true if the char is of the selected mode. + * @protected + */ + protected function isCharMode($chr, $mode) { + $status = false; + switch ($mode) { + case ENC_ASCII: { // ASCII character 0 to 127 + $status = (($chr >= 0) AND ($chr <= 127)); + break; + } + case ENC_C40: { // Upper-case alphanumeric + $status = (($chr == 32) OR (($chr >= 48) AND ($chr <= 57)) OR (($chr >= 65) AND ($chr <= 90))); + break; + } + case ENC_TXT: { // Lower-case alphanumeric + $status = (($chr == 32) OR (($chr >= 48) AND ($chr <= 57)) OR (($chr >= 97) AND ($chr <= 122))); + break; + } + case ENC_X12: { // ANSI X12 + $status = (($chr == 13) OR ($chr == 42) OR ($chr == 62)); + break; + } + case ENC_EDF: { // ASCII character 32 to 94 + $status = (($chr >= 32) AND ($chr <= 94)); + break; + } + case ENC_BASE256: { // Function character (FNC1, Structured Append, Reader Program, or Code Page) + $status = (($chr == 232) OR ($chr == 233) OR ($chr == 234) OR ($chr == 241)); + break; + } + case ENC_ASCII_EXT: { // ASCII character 128 to 255 + $status = (($chr >= 128) AND ($chr <= 255)); + break; + } + case ENC_ASCII_NUM: { // ASCII digits + $status = (($chr >= 48) AND ($chr <= 57)); + break; + } + } + return $status; + } + + /** + * The look-ahead test scans the data to be encoded to find the best mode (Annex P - steps from J to S). + * @param $data (string) data to encode + * @param $pos (int) current position + * @param $mode (int) current encoding mode + * @return int encoding mode + * @protected + */ + protected function lookAheadTest($data, $pos, $mode) { + $data_length = strlen($data); + if ($pos >= $data_length) { + return $mode; + } + $charscount = 0; // count processed chars + // STEP J + if ($mode == ENC_ASCII) { + $numch = array(0, 1, 1, 1, 1, 1.25); + } else { + $numch = array(1, 2, 2, 2, 2, 2.25); + $numch[$mode] = 0; + } + while (true) { + // STEP K + if (($pos + $charscount) == $data_length) { + if ($numch[ENC_ASCII] <= ceil(min($numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_EDF], $numch[ENC_BASE256]))) { + return ENC_ASCII; + } + if ($numch[ENC_BASE256] < ceil(min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_EDF]))) { + return ENC_BASE256; + } + if ($numch[ENC_EDF] < ceil(min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_BASE256]))) { + return ENC_EDF; + } + if ($numch[ENC_TXT] < ceil(min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_X12], $numch[ENC_EDF], $numch[ENC_BASE256]))) { + return ENC_TXT; + } + if ($numch[ENC_X12] < ceil(min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_EDF], $numch[ENC_BASE256]))) { + return ENC_X12; + } + return ENC_C40; + } + // get char + $chr = ord($data[$pos + $charscount]); + $charscount++; + // STEP L + if ($this->isCharMode($chr, ENC_ASCII_NUM)) { + $numch[ENC_ASCII] += (1 / 2); + } elseif ($this->isCharMode($chr, ENC_ASCII_EXT)) { + $numch[ENC_ASCII] = ceil($numch[ENC_ASCII]); + $numch[ENC_ASCII] += 2; + } else { + $numch[ENC_ASCII] = ceil($numch[ENC_ASCII]); + $numch[ENC_ASCII] += 1; + } + // STEP M + if ($this->isCharMode($chr, ENC_C40)) { + $numch[ENC_C40] += (2 / 3); + } elseif ($this->isCharMode($chr, ENC_ASCII_EXT)) { + $numch[ENC_C40] += (8 / 3); + } else { + $numch[ENC_C40] += (4 / 3); + } + // STEP N + if ($this->isCharMode($chr, ENC_TXT)) { + $numch[ENC_TXT] += (2 / 3); + } elseif ($this->isCharMode($chr, ENC_ASCII_EXT)) { + $numch[ENC_TXT] += (8 / 3); + } else { + $numch[ENC_TXT] += (4 / 3); + } + // STEP O + if ($this->isCharMode($chr, ENC_X12) OR $this->isCharMode($chr, ENC_C40)) { + $numch[ENC_X12] += (2 / 3); + } elseif ($this->isCharMode($chr, ENC_ASCII_EXT)) { + $numch[ENC_X12] += (13 / 3); + } else { + $numch[ENC_X12] += (10 / 3); + } + // STEP P + if ($this->isCharMode($chr, ENC_EDF)) { + $numch[ENC_EDF] += (3 / 4); + } elseif ($this->isCharMode($chr, ENC_ASCII_EXT)) { + $numch[ENC_EDF] += (17 / 4); + } else { + $numch[ENC_EDF] += (13 / 4); + } + // STEP Q + if ($this->isCharMode($chr, ENC_BASE256)) { + $numch[ENC_BASE256] += 4; + } else { + $numch[ENC_BASE256] += 1; + } + // STEP R + if ($charscount >= 4) { + if (($numch[ENC_ASCII] + 1) <= min($numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_EDF], $numch[ENC_BASE256])) { + return ENC_ASCII; + } + if ((($numch[ENC_BASE256] + 1) <= $numch[ENC_ASCII]) + OR (($numch[ENC_BASE256] + 1) < min($numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_EDF]))) { + return ENC_BASE256; + } + if (($numch[ENC_EDF] + 1) < min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_BASE256])) { + return ENC_EDF; + } + if (($numch[ENC_TXT] + 1) < min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_X12], $numch[ENC_EDF], $numch[ENC_BASE256])) { + return ENC_TXT; + } + if (($numch[ENC_X12] + 1) < min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_EDF], $numch[ENC_BASE256])) { + return ENC_X12; + } + if (($numch[ENC_C40] + 1) < min($numch[ENC_ASCII], $numch[ENC_TXT], $numch[ENC_EDF], $numch[ENC_BASE256])) { + if ($numch[ENC_C40] < $numch[ENC_X12]) { + return ENC_C40; + } + if ($numch[ENC_C40] == $numch[ENC_X12]) { + $k = ($pos + $charscount + 1); + while ($k < $data_length) { + $tmpchr = ord($data{$k}); + if ($this->isCharMode($tmpchr, ENC_X12)) { + return ENC_X12; + } elseif (!($this->isCharMode($tmpchr, ENC_X12) OR $this->isCharMode($tmpchr, ENC_C40))) { + break; + } + ++$k; + } + return ENC_C40; + } + } + } + } // end of while + } + + /** + * Get the switching codeword to a new encoding mode (latch codeword) + * @param $mode (int) New encoding mode. + * @return (int) Switch codeword. + * @protected + */ + protected function getSwitchEncodingCodeword($mode) { + switch ($mode) { + case ENC_ASCII: { // ASCII character 0 to 127 + $cw = 254; + if ($this->last_enc == ENC_EDF) { + $cw = 124; + } + break; + } + case ENC_C40: { // Upper-case alphanumeric + $cw = 230; + break; + } + case ENC_TXT: { // Lower-case alphanumeric + $cw = 239; + break; + } + case ENC_X12: { // ANSI X12 + $cw = 238; + break; + } + case ENC_EDF: { // ASCII character 32 to 94 + $cw = 240; + break; + } + case ENC_BASE256: { // Function character (FNC1, Structured Append, Reader Program, or Code Page) + $cw = 231; + break; + } + } + return $cw; + } + + /** + * Choose the minimum matrix size and return the max number of data codewords. + * @param $numcw (int) Number of current codewords. + * @return number of data codewords in matrix + * @protected + */ + protected function getMaxDataCodewords($numcw) { + foreach ($this->symbattr as $key => $matrix) { + if ($matrix[11] >= $numcw) { + return $matrix[11]; + } + } + return 0; + } + + /** + * Get high level encoding using the minimum symbol data characters for ECC 200 + * @param $data (string) data to encode + * @return array of codewords + * @protected + */ + protected function getHighLevelEncoding($data) { + // STEP A. Start in ASCII encodation. + $enc = ENC_ASCII; // current encoding mode + $pos = 0; // current position + $cw = array(); // array of codewords to be returned + $cw_num = 0; // number of data codewords + $data_lenght = strlen($data); // number of chars + while ($pos < $data_lenght) { + // set last used encoding + $this->last_enc = $enc; + switch ($enc) { + case ENC_ASCII: { // STEP B. While in ASCII encodation + if (($data_lenght > 1) AND ($pos < ($data_lenght - 1)) AND ($this->isCharMode(ord($data[$pos]), ENC_ASCII_NUM) AND $this->isCharMode(ord($data[$pos + 1]), ENC_ASCII_NUM))) { + // 1. If the next data sequence is at least 2 consecutive digits, encode the next two digits as a double digit in ASCII mode. + $cw[] = (intval(substr($data, $pos, 2)) + 130); + ++$cw_num; + $pos += 2; + } else { + // 2. If the look-ahead test (starting at step J) indicates another mode, switch to that mode. + $newenc = $this->lookAheadTest($data, $pos, $enc); + if ($newenc != $enc) { + // switch to new encoding + $enc = $newenc; + $cw[] = $this->getSwitchEncodingCodeword($enc); + ++$cw_num; + } else { + // get new byte + $chr = ord($data[$pos]); + ++$pos; + if ($this->isCharMode($chr, ENC_ASCII_EXT)) { + // 3. If the next data character is extended ASCII (greater than 127) encode it in ASCII mode first using the Upper Shift (value 235) character. + $cw[] = 235; + $cw[] = ($chr - 127); + $cw_num += 2; + } else { + // 4. Otherwise process the next data character in ASCII encodation. + $cw[] = ($chr + 1); + ++$cw_num; + } + } + } + break; + } + case ENC_C40 : // Upper-case alphanumeric + case ENC_TXT : // Lower-case alphanumeric + case ENC_X12 : { // ANSI X12 + $temp_cw = array(); + $p = 0; + $epos = $pos; + // get charset ID + $set_id = $this->chset_id[$enc]; + // get basic charset for current encoding + $charset = $this->chset[$set_id]; + do { + // 2. process the next character in C40 encodation. + $chr = ord($data[$epos]); + ++$epos; + // check for extended character + if ($chr & 0x80) { + if ($enc == ENC_X12) { + return false; + } + $chr = ($chr & 0x7f); + $temp_cw[] = 1; // shift 2 + $temp_cw[] = 30; // upper shift + $p += 2; + } + if (isset($charset[$chr])) { + $temp_cw[] = $charset[$chr]; + ++$p; + } else { + if (isset($this->chset['SH1'][$chr])) { + $temp_cw[] = 0; // shift 1 + $shiftset = $this->chset['SH1']; + } elseif (isset($chr, $this->chset['SH2'][$chr])) { + $temp_cw[] = 1; // shift 2 + $shiftset = $this->chset['SH2']; + } elseif (($enc == ENC_C40) AND isset($this->chset['S3C'][$chr])) { + $temp_cw[] = 2; // shift 3 + $shiftset = $this->chset['S3C']; + } elseif (($enc == ENC_TXT) AND isset($this->chset['S3T'][$chr])) { + $temp_cw[] = 2; // shift 3 + $shiftset = $this->chset['S3T']; + } else { + return false; + } + $temp_cw[] = $shiftset[$chr]; + $p += 2; + } + if ($p >= 3) { + $c1 = array_shift($temp_cw); + $c2 = array_shift($temp_cw); + $c3 = array_shift($temp_cw); + $p -= 3; + $tmp = ((1600 * $c1) + (40 * $c2) + $c3 + 1); + $cw[] = ($tmp >> 8); + $cw[] = ($tmp % 256); + $cw_num += 2; + $pos = $epos; + // 1. If the C40 encoding is at the point of starting a new double symbol character and if the look-ahead test (starting at step J) indicates another mode, switch to that mode. + $newenc = $this->lookAheadTest($data, $pos, $enc); + if ($newenc != $enc) { + // switch to new encoding + $enc = $newenc; + if ($enc != ENC_ASCII) { + // set unlatch character + $cw[] = $this->getSwitchEncodingCodeword(ENC_ASCII); + ++$cw_num; + } + $cw[] = $this->getSwitchEncodingCodeword($enc); + ++$cw_num; + $pos -= $p; + $p = 0; + break; + } + } + } while (($p > 0) AND ($epos < $data_lenght)); + // process last data (if any) + if ($p > 0) { + // get remaining number of data symbols + $cwr = ($this->getMaxDataCodewords($cw_num) - $cw_num); + if (($cwr == 1) AND ($p == 1)) { + // d. If one symbol character remains and one C40 value (data character) remains to be encoded + $c1 = array_shift($temp_cw); + --$p; + $cw[] = ($chr + 1); + ++$cw_num; + $pos = $epos; + $enc = ENC_ASCII; + $this->last_enc = $enc; + } elseif (($cwr == 2) AND ($p == 1)) { + // c. If two symbol characters remain and only one C40 value (data character) remains to be encoded + $c1 = array_shift($temp_cw); + --$p; + $cw[] = 254; + $cw[] = ($chr + 1); + $cw_num += 2; + $pos = $epos; + $enc = ENC_ASCII; + $this->last_enc = $enc; + } elseif (($cwr == 2) AND ($p == 2)) { + // b. If two symbol characters remain and two C40 values remain to be encoded + $c1 = array_shift($temp_cw); + $c2 = array_shift($temp_cw); + $p -= 2; + $tmp = ((1600 * $c1) + (40 * $c2) + 1); + $cw[] = ($tmp >> 8); + $cw[] = ($tmp % 256); + $cw_num += 2; + $pos = $epos; + $enc = ENC_ASCII; + $this->last_enc = $enc; + } else { + // switch to ASCII encoding + if ($enc != ENC_ASCII) { + $enc = ENC_ASCII; + $this->last_enc = $enc; + $cw[] = $this->getSwitchEncodingCodeword($enc); + ++$cw_num; + $pos = ($epos - $p); + } + } + } + break; + } + case ENC_EDF: { // F. While in EDIFACT (EDF) encodation + // initialize temporary array with 0 lenght + $temp_cw = array(); + $epos = $pos; + $field_lenght = 0; + $newenc = $enc; + do { + // 2. process the next character in EDIFACT encodation. + $chr = ord($data[$epos]); + if ($this->isCharMode($chr, ENC_EDF)) { + ++$epos; + $temp_cw[] = $chr; + ++$field_lenght; + } + if (($field_lenght == 4) OR ($epos == $data_lenght) OR !$this->isCharMode($chr, ENC_EDF)) { + if (($epos == $data_lenght) AND ($field_lenght < 3)) { + $enc = ENC_ASCII; + $cw[] = $this->getSwitchEncodingCodeword($enc); + ++$cw_num; + break; + } + if ($field_lenght < 4) { + // set unlatch character + $temp_cw[] = 0x1f; + ++$field_lenght; + // fill empty characters + for ($i = $field_lenght; $i < 4; ++$i) { + $temp_cw[] = 0; + } + $enc = ENC_ASCII; + $this->last_enc = $enc; + } + // encodes four data characters in three codewords + $tcw = (($temp_cw[0] & 0x3F) << 2) + (($temp_cw[1] & 0x30) >> 4); + if ($tcw > 0) { + $cw[] = $tcw; + $cw_num++; + } + $tcw= (($temp_cw[1] & 0x0F) << 4) + (($temp_cw[2] & 0x3C) >> 2); + if ($tcw > 0) { + $cw[] = $tcw; + $cw_num++; + } + $tcw = (($temp_cw[2] & 0x03) << 6) + ($temp_cw[3] & 0x3F); + if ($tcw > 0) { + $cw[] = $tcw; + $cw_num++; + } + $temp_cw = array(); + $pos = $epos; + $field_lenght = 0; + if ($enc == ENC_ASCII) { + break; // exit from EDIFACT mode + } + } + } while ($epos < $data_lenght); + break; + } + case ENC_BASE256: { // G. While in Base 256 (B256) encodation + // initialize temporary array with 0 lenght + $temp_cw = array(); + $field_lenght = 0; + while (($pos < $data_lenght) AND ($field_lenght <= 1555)) { + $newenc = $this->lookAheadTest($data, $pos, $enc); + if ($newenc != $enc) { + // 1. If the look-ahead test (starting at step J) indicates another mode, switch to that mode. + $enc = $newenc; + break; // exit from B256 mode + } else { + // 2. Otherwise, process the next character in Base 256 encodation. + $chr = ord($data[$pos]); + ++$pos; + $temp_cw[] = $chr; + ++$field_lenght; + } + } + // set field lenght + if ($field_lenght <= 249) { + $cw[] = $this->get255StateCodeword($field_lenght, ($cw_num + 1)); + ++$cw_num; + } else { + $cw[] = $this->get255StateCodeword((floor($field_lenght / 250) + 249), ($cw_num + 1)); + $cw[] = $this->get255StateCodeword(($field_lenght % 250), ($cw_num + 2)); + $cw_num += 2; + } + if (!empty($temp_cw)) { + // add B256 field + foreach ($temp_cw as $p => $cht) { + $cw[] = $this->get255StateCodeword($cht, ($cw_num + $p + 1)); + } + } + break; + } + } // end of switch enc + } // end of while + return $cw; + } + + /** + * Places "chr+bit" with appropriate wrapping within array[]. + * (Annex F - ECC 200 symbol character placement) + * @param $marr (array) Array of symbols. + * @param $nrow (int) Number of rows. + * @param $ncol (int) Number of columns. + * @param $row (int) Row number. + * @param $col (int) Column number. + * @param $chr (int) Char byte. + * @param $bit (int) Bit. + * @return array + * @protected + */ + protected function placeModule($marr, $nrow, $ncol, $row, $col, $chr, $bit) { + if ($row < 0) { + $row += $nrow; + $col += (4 - (($nrow + 4) % 8)); + } + if ($col < 0) { + $col += $ncol; + $row += (4 - (($ncol + 4) % 8)); + } + $marr[(($row * $ncol) + $col)] = ((10 * $chr) + $bit); + return $marr; + } + + /** + * Places the 8 bits of a utah-shaped symbol character. + * (Annex F - ECC 200 symbol character placement) + * @param $marr (array) Array of symbols. + * @param $nrow (int) Number of rows. + * @param $ncol (int) Number of columns. + * @param $row (int) Row number. + * @param $col (int) Column number. + * @param $chr (int) Char byte. + * @return array + * @protected + */ + protected function placeUtah($marr, $nrow, $ncol, $row, $col, $chr) { + $marr = $this->placeModule($marr, $nrow, $ncol, $row-2, $col-2, $chr, 1); + $marr = $this->placeModule($marr, $nrow, $ncol, $row-2, $col-1, $chr, 2); + $marr = $this->placeModule($marr, $nrow, $ncol, $row-1, $col-2, $chr, 3); + $marr = $this->placeModule($marr, $nrow, $ncol, $row-1, $col-1, $chr, 4); + $marr = $this->placeModule($marr, $nrow, $ncol, $row-1, $col, $chr, 5); + $marr = $this->placeModule($marr, $nrow, $ncol, $row, $col-2, $chr, 6); + $marr = $this->placeModule($marr, $nrow, $ncol, $row, $col-1, $chr, 7); + $marr = $this->placeModule($marr, $nrow, $ncol, $row, $col, $chr, 8); + return $marr; + } + + /** + * Places the 8 bits of the first special corner case. + * (Annex F - ECC 200 symbol character placement) + * @param $marr (array) Array of symbols. + * @param $nrow (int) Number of rows. + * @param $ncol (int) Number of columns. + * @param $chr (int) Char byte. + * @return array + * @protected + */ + protected function placeCornerA($marr, $nrow, $ncol, $chr) { + $marr = $this->placeModule($marr, $nrow, $ncol, $nrow-1, 0, $chr, 1); + $marr = $this->placeModule($marr, $nrow, $ncol, $nrow-1, 1, $chr, 2); + $marr = $this->placeModule($marr, $nrow, $ncol, $nrow-1, 2, $chr, 3); + $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol-2, $chr, 4); + $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol-1, $chr, 5); + $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol-1, $chr, 6); + $marr = $this->placeModule($marr, $nrow, $ncol, 2, $ncol-1, $chr, 7); + $marr = $this->placeModule($marr, $nrow, $ncol, 3, $ncol-1, $chr, 8); + return $marr; + } + + /** + * Places the 8 bits of the second special corner case. + * (Annex F - ECC 200 symbol character placement) + * @param $marr (array) Array of symbols. + * @param $nrow (int) Number of rows. + * @param $ncol (int) Number of columns. + * @param $chr (int) Char byte. + * @return array + * @protected + */ + protected function placeCornerB($marr, $nrow, $ncol, $chr) { + $marr = $this->placeModule($marr, $nrow, $ncol, $nrow-3, 0, $chr, 1); + $marr = $this->placeModule($marr, $nrow, $ncol, $nrow-2, 0, $chr, 2); + $marr = $this->placeModule($marr, $nrow, $ncol, $nrow-1, 0, $chr, 3); + $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol-4, $chr, 4); + $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol-3, $chr, 5); + $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol-2, $chr, 6); + $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol-1, $chr, 7); + $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol-1, $chr, 8); + return $marr; + } + + /** + * Places the 8 bits of the third special corner case. + * (Annex F - ECC 200 symbol character placement) + * @param $marr (array) Array of symbols. + * @param $nrow (int) Number of rows. + * @param $ncol (int) Number of columns. + * @param $chr (int) Char byte. + * @return array + * @protected + */ + protected function placeCornerC($marr, $nrow, $ncol, $chr) { + $marr = $this->placeModule($marr, $nrow, $ncol, $nrow-3, 0, $chr, 1); + $marr = $this->placeModule($marr, $nrow, $ncol, $nrow-2, 0, $chr, 2); + $marr = $this->placeModule($marr, $nrow, $ncol, $nrow-1, 0, $chr, 3); + $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol-2, $chr, 4); + $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol-1, $chr, 5); + $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol-1, $chr, 6); + $marr = $this->placeModule($marr, $nrow, $ncol, 2, $ncol-1, $chr, 7); + $marr = $this->placeModule($marr, $nrow, $ncol, 3, $ncol-1, $chr, 8); + return $marr; + } + + /** + * Places the 8 bits of the fourth special corner case. + * (Annex F - ECC 200 symbol character placement) + * @param $marr (array) Array of symbols. + * @param $nrow (int) Number of rows. + * @param $ncol (int) Number of columns. + * @param $chr (int) Char byte. + * @return array + * @protected + */ + protected function placeCornerD($marr, $nrow, $ncol, $chr) { + $marr = $this->placeModule($marr, $nrow, $ncol, $nrow-1, 0, $chr, 1); + $marr = $this->placeModule($marr, $nrow, $ncol, $nrow-1, $ncol-1, $chr, 2); + $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol-3, $chr, 3); + $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol-2, $chr, 4); + $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol-1, $chr, 5); + $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol-3, $chr, 6); + $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol-2, $chr, 7); + $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol-1, $chr, 8); + return $marr; + } + + /** + * Build a placement map. + * (Annex F - ECC 200 symbol character placement) + * @param $nrow (int) Number of rows. + * @param $ncol (int) Number of columns. + * @return array + * @protected + */ + protected function getPlacementMap($nrow, $ncol) { + // initialize array with zeros + $marr = array_fill(0, ($nrow * $ncol), 0); + // set starting values + $chr = 1; + $row = 4; + $col = 0; + do { + // repeatedly first check for one of the special corner cases, then + if (($row == $nrow) AND ($col == 0)) { + $marr = $this->placeCornerA($marr, $nrow, $ncol, $chr); + ++$chr; + } + if (($row == ($nrow - 2)) AND ($col == 0) AND ($ncol % 4)) { + $marr = $this->placeCornerB($marr, $nrow, $ncol, $chr); + ++$chr; + } + if (($row == ($nrow - 2)) AND ($col == 0) AND (($ncol % 8) == 4)) { + $marr = $this->placeCornerC($marr, $nrow, $ncol, $chr); + ++$chr; + } + if (($row == ($nrow + 4)) AND ($col == 2) AND (!($ncol % 8))) { + $marr = $this->placeCornerD($marr, $nrow, $ncol, $chr); + ++$chr; + } + // sweep upward diagonally, inserting successive characters, + do { + if (($row < $nrow) AND ($col >= 0) AND (!$marr[(($row * $ncol) + $col)])) { + $marr = $this->placeUtah($marr, $nrow, $ncol, $row, $col, $chr); + ++$chr; + } + $row -= 2; + $col += 2; + } while (($row >= 0) AND ($col < $ncol)); + ++$row; + $col += 3; + // & then sweep downward diagonally, inserting successive characters,... + do { + if (($row >= 0) AND ($col < $ncol) AND (!$marr[(($row * $ncol) + $col)])) { + $marr = $this->placeUtah($marr, $nrow, $ncol, $row, $col, $chr); + ++$chr; + } + $row += 2; + $col -= 2; + } while (($row < $nrow) AND ($col >= 0)); + $row += 3; + ++$col; + // ... until the entire array is scanned + } while (($row < $nrow) OR ($col < $ncol)); + // lastly, if the lower righthand corner is untouched, fill in fixed pattern + if (!$marr[(($nrow * $ncol) - 1)]) { + $marr[(($nrow * $ncol) - 1)] = 1; + $marr[(($nrow * $ncol) - $ncol - 2)] = 1; + } + return $marr; + } + +} // end DataMatrix class +//============================================================+ +// END OF FILE +//============================================================+ -- cgit v1.2.3