datamatrix.php
1465 lines
| 1 | <?php |
| 2 | |
| 3 | namespace { |
| 4 | //============================================================+ |
| 5 | // File name : datamatrix.php |
| 6 | // Version : 1.0.008 |
| 7 | // Begin : 2010-06-07 |
| 8 | // Last Update : 2014-05-06 |
| 9 | // Author : Nicola Asuni - Tecnick.com LTD - www.tecnick.com - info@tecnick.com |
| 10 | // License : GNU-LGPL v3 (https://www.gnu.org/copyleft/lesser.html) |
| 11 | // ------------------------------------------------------------------- |
| 12 | // Copyright (C) 2010-2014 2026 Nicola Asuni - Tecnick.com LTD |
| 13 | // |
| 14 | // This file is part of TCPDF software library. |
| 15 | // |
| 16 | // TCPDF is free software: you can redistribute it and/or modify it |
| 17 | // under the terms of the GNU Lesser General Public License as |
| 18 | // published by the Free Software Foundation, either version 3 of the |
| 19 | // License, or (at your option) any later version. |
| 20 | // |
| 21 | // TCPDF is distributed in the hope that it will be useful, but |
| 22 | // WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 24 | // See the GNU Lesser General Public License for more details. |
| 25 | // |
| 26 | // You should have received a copy of the GNU Lesser General Public License |
| 27 | // along with TCPDF. If not, see <https://www.gnu.org/licenses/>. |
| 28 | // |
| 29 | // See LICENSE.TXT file for more information. |
| 30 | // ------------------------------------------------------------------- |
| 31 | // |
| 32 | // DESCRIPTION : |
| 33 | // |
| 34 | // Class to create DataMatrix ECC 200 barcode arrays for TCPDF class. |
| 35 | // DataMatrix (ISO/IEC 16022:2006) is a 2-dimensional bar code. |
| 36 | //============================================================+ |
| 37 | /** |
| 38 | * @file |
| 39 | * Class to create DataMatrix ECC 200 barcode arrays for TCPDF class. |
| 40 | * DataMatrix (ISO/IEC 16022:2006) is a 2-dimensional bar code. |
| 41 | * |
| 42 | * @package com.tecnick.tcpdf |
| 43 | * @author Nicola Asuni |
| 44 | * @version 1.0.008 |
| 45 | */ |
| 46 | // custom definitions |
| 47 | if (!\defined('DATAMATRIXDEFS')) { |
| 48 | /** |
| 49 | * Indicate that definitions for this class are set |
| 50 | */ |
| 51 | \define('DATAMATRIXDEFS', \true); |
| 52 | // ----------------------------------------------------- |
| 53 | } |
| 54 | // end of custom definitions |
| 55 | // #*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*# |
| 56 | /** |
| 57 | * ASCII encoding: ASCII character 0 to 127 (1 byte per CW) |
| 58 | */ |
| 59 | \define('ENC_ASCII', 0); |
| 60 | /** |
| 61 | * C40 encoding: Upper-case alphanumeric (3/2 bytes per CW) |
| 62 | */ |
| 63 | \define('ENC_C40', 1); |
| 64 | /** |
| 65 | * TEXT encoding: Lower-case alphanumeric (3/2 bytes per CW) |
| 66 | */ |
| 67 | \define('ENC_TXT', 2); |
| 68 | /** |
| 69 | * X12 encoding: ANSI X12 (3/2 byte per CW) |
| 70 | */ |
| 71 | \define('ENC_X12', 3); |
| 72 | /** |
| 73 | * EDIFACT encoding: ASCII character 32 to 94 (4/3 bytes per CW) |
| 74 | */ |
| 75 | \define('ENC_EDF', 4); |
| 76 | /** |
| 77 | * BASE 256 encoding: ASCII character 0 to 255 (1 byte per CW) |
| 78 | */ |
| 79 | \define('ENC_BASE256', 5); |
| 80 | /** |
| 81 | * ASCII extended encoding: ASCII character 128 to 255 (1/2 byte per CW) |
| 82 | */ |
| 83 | \define('ENC_ASCII_EXT', 6); |
| 84 | /** |
| 85 | * ASCII number encoding: ASCII digits (2 bytes per CW) |
| 86 | */ |
| 87 | \define('ENC_ASCII_NUM', 7); |
| 88 | /** |
| 89 | * @class Datamatrix |
| 90 | * Class to create DataMatrix ECC 200 barcode arrays for TCPDF class. |
| 91 | * DataMatrix (ISO/IEC 16022:2006) is a 2-dimensional bar code. |
| 92 | * |
| 93 | * @package com.tecnick.tcpdf |
| 94 | * @author Nicola Asuni |
| 95 | * @version 1.0.004 |
| 96 | */ |
| 97 | class Datamatrix |
| 98 | { |
| 99 | /** |
| 100 | * Barcode array to be returned which is readable by TCPDF. |
| 101 | * @protected |
| 102 | */ |
| 103 | protected $barcode_array = array(); |
| 104 | /** |
| 105 | * Store last used encoding for data codewords. |
| 106 | * @protected |
| 107 | */ |
| 108 | protected $last_enc = \ENC_ASCII; |
| 109 | /** |
| 110 | * Table of Data Matrix ECC 200 Symbol Attributes:<ul> |
| 111 | * <li>total matrix rows (including finder pattern)</li> |
| 112 | * <li>total matrix cols (including finder pattern)</li> |
| 113 | * <li>total matrix rows (without finder pattern)</li> |
| 114 | * <li>total matrix cols (without finder pattern)</li> |
| 115 | * <li>region data rows (with finder pattern)</li> |
| 116 | * <li>region data col (with finder pattern)</li> |
| 117 | * <li>region data rows (without finder pattern)</li> |
| 118 | * <li>region data col (without finder pattern)</li> |
| 119 | * <li>horizontal regions</li> |
| 120 | * <li>vertical regions</li> |
| 121 | * <li>regions</li> |
| 122 | * <li>data codewords</li> |
| 123 | * <li>error codewords</li> |
| 124 | * <li>blocks</li> |
| 125 | * <li>data codewords per block</li> |
| 126 | * <li>error codewords per block</li> |
| 127 | * </ul> |
| 128 | * @protected |
| 129 | */ |
| 130 | protected $symbattr = array( |
| 131 | // square form --------------------------------------------------------------------------------------- |
| 132 | array(0xa, 0xa, 0x8, 0x8, 0xa, 0xa, 0x8, 0x8, 0x1, 0x1, 0x1, 0x3, 0x5, 0x1, 0x3, 0x5), |
| 133 | // 10x10 |
| 134 | array(0xc, 0xc, 0xa, 0xa, 0xc, 0xc, 0xa, 0xa, 0x1, 0x1, 0x1, 0x5, 0x7, 0x1, 0x5, 0x7), |
| 135 | // 12x12 |
| 136 | array(0xe, 0xe, 0xc, 0xc, 0xe, 0xe, 0xc, 0xc, 0x1, 0x1, 0x1, 0x8, 0xa, 0x1, 0x8, 0xa), |
| 137 | // 14x14 |
| 138 | array(0x10, 0x10, 0xe, 0xe, 0x10, 0x10, 0xe, 0xe, 0x1, 0x1, 0x1, 0xc, 0xc, 0x1, 0xc, 0xc), |
| 139 | // 16x16 |
| 140 | array(0x12, 0x12, 0x10, 0x10, 0x12, 0x12, 0x10, 0x10, 0x1, 0x1, 0x1, 0x12, 0xe, 0x1, 0x12, 0xe), |
| 141 | // 18x18 |
| 142 | array(0x14, 0x14, 0x12, 0x12, 0x14, 0x14, 0x12, 0x12, 0x1, 0x1, 0x1, 0x16, 0x12, 0x1, 0x16, 0x12), |
| 143 | // 20x20 |
| 144 | array(0x16, 0x16, 0x14, 0x14, 0x16, 0x16, 0x14, 0x14, 0x1, 0x1, 0x1, 0x1e, 0x14, 0x1, 0x1e, 0x14), |
| 145 | // 22x22 |
| 146 | array(0x18, 0x18, 0x16, 0x16, 0x18, 0x18, 0x16, 0x16, 0x1, 0x1, 0x1, 0x24, 0x18, 0x1, 0x24, 0x18), |
| 147 | // 24x24 |
| 148 | array(0x1a, 0x1a, 0x18, 0x18, 0x1a, 0x1a, 0x18, 0x18, 0x1, 0x1, 0x1, 0x2c, 0x1c, 0x1, 0x2c, 0x1c), |
| 149 | // 26x26 |
| 150 | array(0x20, 0x20, 0x1c, 0x1c, 0x10, 0x10, 0xe, 0xe, 0x2, 0x2, 0x4, 0x3e, 0x24, 0x1, 0x3e, 0x24), |
| 151 | // 32x32 |
| 152 | array(0x24, 0x24, 0x20, 0x20, 0x12, 0x12, 0x10, 0x10, 0x2, 0x2, 0x4, 0x56, 0x2a, 0x1, 0x56, 0x2a), |
| 153 | // 36x36 |
| 154 | array(0x28, 0x28, 0x24, 0x24, 0x14, 0x14, 0x12, 0x12, 0x2, 0x2, 0x4, 0x72, 0x30, 0x1, 0x72, 0x30), |
| 155 | // 40x40 |
| 156 | array(0x2c, 0x2c, 0x28, 0x28, 0x16, 0x16, 0x14, 0x14, 0x2, 0x2, 0x4, 0x90, 0x38, 0x1, 0x90, 0x38), |
| 157 | // 44x44 |
| 158 | array(0x30, 0x30, 0x2c, 0x2c, 0x18, 0x18, 0x16, 0x16, 0x2, 0x2, 0x4, 0xae, 0x44, 0x1, 0xae, 0x44), |
| 159 | // 48x48 |
| 160 | array(0x34, 0x34, 0x30, 0x30, 0x1a, 0x1a, 0x18, 0x18, 0x2, 0x2, 0x4, 0xcc, 0x54, 0x2, 0x66, 0x2a), |
| 161 | // 52x52 |
| 162 | array(0x40, 0x40, 0x38, 0x38, 0x10, 0x10, 0xe, 0xe, 0x4, 0x4, 0x10, 0x118, 0x70, 0x2, 0x8c, 0x38), |
| 163 | // 64x64 |
| 164 | array(0x48, 0x48, 0x40, 0x40, 0x12, 0x12, 0x10, 0x10, 0x4, 0x4, 0x10, 0x170, 0x90, 0x4, 0x5c, 0x24), |
| 165 | // 72x72 |
| 166 | array(0x50, 0x50, 0x48, 0x48, 0x14, 0x14, 0x12, 0x12, 0x4, 0x4, 0x10, 0x1c8, 0xc0, 0x4, 0x72, 0x30), |
| 167 | // 80x80 |
| 168 | array(0x58, 0x58, 0x50, 0x50, 0x16, 0x16, 0x14, 0x14, 0x4, 0x4, 0x10, 0x240, 0xe0, 0x4, 0x90, 0x38), |
| 169 | // 88x88 |
| 170 | array(0x60, 0x60, 0x58, 0x58, 0x18, 0x18, 0x16, 0x16, 0x4, 0x4, 0x10, 0x2b8, 0x110, 0x4, 0xae, 0x44), |
| 171 | // 96x96 |
| 172 | array(0x68, 0x68, 0x60, 0x60, 0x1a, 0x1a, 0x18, 0x18, 0x4, 0x4, 0x10, 0x330, 0x150, 0x6, 0x88, 0x38), |
| 173 | // 104x104 |
| 174 | array(0x78, 0x78, 0x6c, 0x6c, 0x14, 0x14, 0x12, 0x12, 0x6, 0x6, 0x24, 0x41a, 0x198, 0x6, 0xaf, 0x44), |
| 175 | // 120x120 |
| 176 | array(0x84, 0x84, 0x78, 0x78, 0x16, 0x16, 0x14, 0x14, 0x6, 0x6, 0x24, 0x518, 0x1f0, 0x8, 0xa3, 0x3e), |
| 177 | // 132x132 |
| 178 | array(0x90, 0x90, 0x84, 0x84, 0x18, 0x18, 0x16, 0x16, 0x6, 0x6, 0x24, 0x616, 0x26c, 0xa, 0x9c, 0x3e), |
| 179 | // 144x144 |
| 180 | // rectangular form (currently unused) --------------------------------------------------------------------------- |
| 181 | array(0x8, 0x12, 0x6, 0x10, 0x8, 0x12, 0x6, 0x10, 0x1, 0x1, 0x1, 0x5, 0x7, 0x1, 0x5, 0x7), |
| 182 | // 8x18 |
| 183 | array(0x8, 0x20, 0x6, 0x1c, 0x8, 0x10, 0x6, 0xe, 0x1, 0x2, 0x2, 0xa, 0xb, 0x1, 0xa, 0xb), |
| 184 | // 8x32 |
| 185 | array(0xc, 0x1a, 0xa, 0x18, 0xc, 0x1a, 0xa, 0x18, 0x1, 0x1, 0x1, 0x10, 0xe, 0x1, 0x10, 0xe), |
| 186 | // 12x26 |
| 187 | array(0xc, 0x24, 0xa, 0x20, 0xc, 0x12, 0xa, 0x10, 0x1, 0x2, 0x2, 0xc, 0x12, 0x1, 0xc, 0x12), |
| 188 | // 12x36 |
| 189 | array(0x10, 0x24, 0xe, 0x20, 0x10, 0x12, 0xe, 0x10, 0x1, 0x2, 0x2, 0x20, 0x18, 0x1, 0x20, 0x18), |
| 190 | // 16x36 |
| 191 | array(0x10, 0x30, 0xe, 0x2c, 0x10, 0x18, 0xe, 0x16, 0x1, 0x2, 0x2, 0x31, 0x1c, 0x1, 0x31, 0x1c), |
| 192 | ); |
| 193 | /** |
| 194 | * Map encodation modes whit character sets. |
| 195 | * @protected |
| 196 | */ |
| 197 | protected $chset_id = array(\ENC_C40 => 'C40', \ENC_TXT => 'TXT', \ENC_X12 => 'X12'); |
| 198 | /** |
| 199 | * Basic set of characters for each encodation mode. |
| 200 | * @protected |
| 201 | */ |
| 202 | protected $chset = array( |
| 203 | 'C40' => array( |
| 204 | // Basic set for C40 ---------------------------------------------------------------------------- |
| 205 | 'S1' => 0x0, |
| 206 | 'S2' => 0x1, |
| 207 | 'S3' => 0x2, |
| 208 | 0x20 => 0x3, |
| 209 | 0x30 => 0x4, |
| 210 | 0x31 => 0x5, |
| 211 | 0x32 => 0x6, |
| 212 | 0x33 => 0x7, |
| 213 | 0x34 => 0x8, |
| 214 | 0x35 => 0x9, |
| 215 | // |
| 216 | 0x36 => 0xa, |
| 217 | 0x37 => 0xb, |
| 218 | 0x38 => 0xc, |
| 219 | 0x39 => 0xd, |
| 220 | 0x41 => 0xe, |
| 221 | 0x42 => 0xf, |
| 222 | 0x43 => 0x10, |
| 223 | 0x44 => 0x11, |
| 224 | 0x45 => 0x12, |
| 225 | 0x46 => 0x13, |
| 226 | // |
| 227 | 0x47 => 0x14, |
| 228 | 0x48 => 0x15, |
| 229 | 0x49 => 0x16, |
| 230 | 0x4a => 0x17, |
| 231 | 0x4b => 0x18, |
| 232 | 0x4c => 0x19, |
| 233 | 0x4d => 0x1a, |
| 234 | 0x4e => 0x1b, |
| 235 | 0x4f => 0x1c, |
| 236 | 0x50 => 0x1d, |
| 237 | // |
| 238 | 0x51 => 0x1e, |
| 239 | 0x52 => 0x1f, |
| 240 | 0x53 => 0x20, |
| 241 | 0x54 => 0x21, |
| 242 | 0x55 => 0x22, |
| 243 | 0x56 => 0x23, |
| 244 | 0x57 => 0x24, |
| 245 | 0x58 => 0x25, |
| 246 | 0x59 => 0x26, |
| 247 | 0x5a => 0x27, |
| 248 | ), |
| 249 | // |
| 250 | 'TXT' => array( |
| 251 | // Basic set for TEXT --------------------------------------------------------------------------- |
| 252 | 'S1' => 0x0, |
| 253 | 'S2' => 0x1, |
| 254 | 'S3' => 0x2, |
| 255 | 0x20 => 0x3, |
| 256 | 0x30 => 0x4, |
| 257 | 0x31 => 0x5, |
| 258 | 0x32 => 0x6, |
| 259 | 0x33 => 0x7, |
| 260 | 0x34 => 0x8, |
| 261 | 0x35 => 0x9, |
| 262 | // |
| 263 | 0x36 => 0xa, |
| 264 | 0x37 => 0xb, |
| 265 | 0x38 => 0xc, |
| 266 | 0x39 => 0xd, |
| 267 | 0x61 => 0xe, |
| 268 | 0x62 => 0xf, |
| 269 | 0x63 => 0x10, |
| 270 | 0x64 => 0x11, |
| 271 | 0x65 => 0x12, |
| 272 | 0x66 => 0x13, |
| 273 | // |
| 274 | 0x67 => 0x14, |
| 275 | 0x68 => 0x15, |
| 276 | 0x69 => 0x16, |
| 277 | 0x6a => 0x17, |
| 278 | 0x6b => 0x18, |
| 279 | 0x6c => 0x19, |
| 280 | 0x6d => 0x1a, |
| 281 | 0x6e => 0x1b, |
| 282 | 0x6f => 0x1c, |
| 283 | 0x70 => 0x1d, |
| 284 | // |
| 285 | 0x71 => 0x1e, |
| 286 | 0x72 => 0x1f, |
| 287 | 0x73 => 0x20, |
| 288 | 0x74 => 0x21, |
| 289 | 0x75 => 0x22, |
| 290 | 0x76 => 0x23, |
| 291 | 0x77 => 0x24, |
| 292 | 0x78 => 0x25, |
| 293 | 0x79 => 0x26, |
| 294 | 0x7a => 0x27, |
| 295 | ), |
| 296 | // |
| 297 | 'SH1' => array( |
| 298 | // Shift 1 set ---------------------------------------------------------------------------------- |
| 299 | 0x0 => 0x0, |
| 300 | 0x1 => 0x1, |
| 301 | 0x2 => 0x2, |
| 302 | 0x3 => 0x3, |
| 303 | 0x4 => 0x4, |
| 304 | 0x5 => 0x5, |
| 305 | 0x6 => 0x6, |
| 306 | 0x7 => 0x7, |
| 307 | 0x8 => 0x8, |
| 308 | 0x9 => 0x9, |
| 309 | // |
| 310 | 0xa => 0xa, |
| 311 | 0xb => 0xb, |
| 312 | 0xc => 0xc, |
| 313 | 0xd => 0xd, |
| 314 | 0xe => 0xe, |
| 315 | 0xf => 0xf, |
| 316 | 0x10 => 0x10, |
| 317 | 0x11 => 0x11, |
| 318 | 0x12 => 0x12, |
| 319 | 0x13 => 0x13, |
| 320 | // |
| 321 | 0x14 => 0x14, |
| 322 | 0x15 => 0x15, |
| 323 | 0x16 => 0x16, |
| 324 | 0x17 => 0x17, |
| 325 | 0x18 => 0x18, |
| 326 | 0x19 => 0x19, |
| 327 | 0x1a => 0x1a, |
| 328 | 0x1b => 0x1b, |
| 329 | 0x1c => 0x1c, |
| 330 | 0x1d => 0x1d, |
| 331 | // |
| 332 | 0x1e => 0x1e, |
| 333 | 0x1f => 0x1f, |
| 334 | ), |
| 335 | // |
| 336 | 'SH2' => array( |
| 337 | // Shift 2 set ---------------------------------------------------------------------------------- |
| 338 | 0x21 => 0x0, |
| 339 | 0x22 => 0x1, |
| 340 | 0x23 => 0x2, |
| 341 | 0x24 => 0x3, |
| 342 | 0x25 => 0x4, |
| 343 | 0x26 => 0x5, |
| 344 | 0x27 => 0x6, |
| 345 | 0x28 => 0x7, |
| 346 | 0x29 => 0x8, |
| 347 | 0x2a => 0x9, |
| 348 | // |
| 349 | 0x2b => 0xa, |
| 350 | 0x2c => 0xb, |
| 351 | 0x2d => 0xc, |
| 352 | 0x2e => 0xd, |
| 353 | 0x2f => 0xe, |
| 354 | 0x3a => 0xf, |
| 355 | 0x3b => 0x10, |
| 356 | 0x3c => 0x11, |
| 357 | 0x3d => 0x12, |
| 358 | 0x3e => 0x13, |
| 359 | // |
| 360 | 0x3f => 0x14, |
| 361 | 0x40 => 0x15, |
| 362 | 0x5b => 0x16, |
| 363 | 0x5c => 0x17, |
| 364 | 0x5d => 0x18, |
| 365 | 0x5e => 0x19, |
| 366 | 0x5f => 0x1a, |
| 367 | 'F1' => 0x1b, |
| 368 | 'US' => 0x1e, |
| 369 | ), |
| 370 | // |
| 371 | 'S3C' => array( |
| 372 | // Shift 3 set for C40 -------------------------------------------------------------------------- |
| 373 | 0x60 => 0x0, |
| 374 | 0x61 => 0x1, |
| 375 | 0x62 => 0x2, |
| 376 | 0x63 => 0x3, |
| 377 | 0x64 => 0x4, |
| 378 | 0x65 => 0x5, |
| 379 | 0x66 => 0x6, |
| 380 | 0x67 => 0x7, |
| 381 | 0x68 => 0x8, |
| 382 | 0x69 => 0x9, |
| 383 | // |
| 384 | 0x6a => 0xa, |
| 385 | 0x6b => 0xb, |
| 386 | 0x6c => 0xc, |
| 387 | 0x6d => 0xd, |
| 388 | 0x6e => 0xe, |
| 389 | 0x6f => 0xf, |
| 390 | 0x70 => 0x10, |
| 391 | 0x71 => 0x11, |
| 392 | 0x72 => 0x12, |
| 393 | 0x73 => 0x13, |
| 394 | // |
| 395 | 0x74 => 0x14, |
| 396 | 0x75 => 0x15, |
| 397 | 0x76 => 0x16, |
| 398 | 0x77 => 0x17, |
| 399 | 0x78 => 0x18, |
| 400 | 0x79 => 0x19, |
| 401 | 0x7a => 0x1a, |
| 402 | 0x7b => 0x1b, |
| 403 | 0x7c => 0x1c, |
| 404 | 0x7d => 0x1d, |
| 405 | // |
| 406 | 0x7e => 0x1e, |
| 407 | 0x7f => 0x1f, |
| 408 | ), |
| 409 | 'S3T' => array( |
| 410 | // Shift 3 set for TEXT ------------------------------------------------------------------------- |
| 411 | 0x60 => 0x0, |
| 412 | 0x41 => 0x1, |
| 413 | 0x42 => 0x2, |
| 414 | 0x43 => 0x3, |
| 415 | 0x44 => 0x4, |
| 416 | 0x45 => 0x5, |
| 417 | 0x46 => 0x6, |
| 418 | 0x47 => 0x7, |
| 419 | 0x48 => 0x8, |
| 420 | 0x49 => 0x9, |
| 421 | // |
| 422 | 0x4a => 0xa, |
| 423 | 0x4b => 0xb, |
| 424 | 0x4c => 0xc, |
| 425 | 0x4d => 0xd, |
| 426 | 0x4e => 0xe, |
| 427 | 0x4f => 0xf, |
| 428 | 0x50 => 0x10, |
| 429 | 0x51 => 0x11, |
| 430 | 0x52 => 0x12, |
| 431 | 0x53 => 0x13, |
| 432 | // |
| 433 | 0x54 => 0x14, |
| 434 | 0x55 => 0x15, |
| 435 | 0x56 => 0x16, |
| 436 | 0x57 => 0x17, |
| 437 | 0x58 => 0x18, |
| 438 | 0x59 => 0x19, |
| 439 | 0x5a => 0x1a, |
| 440 | 0x7b => 0x1b, |
| 441 | 0x7c => 0x1c, |
| 442 | 0x7d => 0x1d, |
| 443 | // |
| 444 | 0x7e => 0x1e, |
| 445 | 0x7f => 0x1f, |
| 446 | ), |
| 447 | // |
| 448 | 'X12' => array( |
| 449 | // Set for X12 ---------------------------------------------------------------------------------- |
| 450 | 0xd => 0x0, |
| 451 | 0x2a => 0x1, |
| 452 | 0x3e => 0x2, |
| 453 | 0x20 => 0x3, |
| 454 | 0x30 => 0x4, |
| 455 | 0x31 => 0x5, |
| 456 | 0x32 => 0x6, |
| 457 | 0x33 => 0x7, |
| 458 | 0x34 => 0x8, |
| 459 | 0x35 => 0x9, |
| 460 | // |
| 461 | 0x36 => 0xa, |
| 462 | 0x37 => 0xb, |
| 463 | 0x38 => 0xc, |
| 464 | 0x39 => 0xd, |
| 465 | 0x41 => 0xe, |
| 466 | 0x42 => 0xf, |
| 467 | 0x43 => 0x10, |
| 468 | 0x44 => 0x11, |
| 469 | 0x45 => 0x12, |
| 470 | 0x46 => 0x13, |
| 471 | // |
| 472 | 0x47 => 0x14, |
| 473 | 0x48 => 0x15, |
| 474 | 0x49 => 0x16, |
| 475 | 0x4a => 0x17, |
| 476 | 0x4b => 0x18, |
| 477 | 0x4c => 0x19, |
| 478 | 0x4d => 0x1a, |
| 479 | 0x4e => 0x1b, |
| 480 | 0x4f => 0x1c, |
| 481 | 0x50 => 0x1d, |
| 482 | // |
| 483 | 0x51 => 0x1e, |
| 484 | 0x52 => 0x1f, |
| 485 | 0x53 => 0x20, |
| 486 | 0x54 => 0x21, |
| 487 | 0x55 => 0x22, |
| 488 | 0x56 => 0x23, |
| 489 | 0x57 => 0x24, |
| 490 | 0x58 => 0x25, |
| 491 | 0x59 => 0x26, |
| 492 | 0x5a => 0x27, |
| 493 | ), |
| 494 | ); |
| 495 | // ----------------------------------------------------------------------------- |
| 496 | /** |
| 497 | * This is the class constructor. |
| 498 | * Creates a datamatrix object |
| 499 | * @param string $code Code to represent using Datamatrix. |
| 500 | * @public |
| 501 | */ |
| 502 | public function __construct($code) |
| 503 | { |
| 504 | $barcode_array = array(); |
| 505 | if (\is_null($code) or $code == '\\0' or $code == '') { |
| 506 | return \false; |
| 507 | } |
| 508 | // get data codewords |
| 509 | $cw = $this->getHighLevelEncoding($code); |
| 510 | // number of data codewords |
| 511 | $nd = \count($cw); |
| 512 | // check size |
| 513 | if ($nd > 1558) { |
| 514 | return \false; |
| 515 | } |
| 516 | // get minimum required matrix size. |
| 517 | foreach ($this->symbattr as $params) { |
| 518 | if ($params[11] >= $nd) { |
| 519 | break; |
| 520 | } |
| 521 | } |
| 522 | if ($params[11] < $nd) { |
| 523 | // too much data |
| 524 | return \false; |
| 525 | } elseif ($params[11] > $nd) { |
| 526 | // add padding |
| 527 | if ($params[11] - $nd > 1 and $cw[$nd - 1] != 254) { |
| 528 | if ($this->last_enc == \ENC_EDF) { |
| 529 | // switch to ASCII encoding |
| 530 | $cw[] = 124; |
| 531 | ++$nd; |
| 532 | } elseif ($this->last_enc != \ENC_ASCII and $this->last_enc != \ENC_BASE256) { |
| 533 | // switch to ASCII encoding |
| 534 | $cw[] = 254; |
| 535 | ++$nd; |
| 536 | } |
| 537 | } |
| 538 | if ($params[11] > $nd) { |
| 539 | // add first pad |
| 540 | $cw[] = 129; |
| 541 | ++$nd; |
| 542 | // add remaining pads |
| 543 | for ($i = $nd; $i < $params[11]; ++$i) { |
| 544 | $cw[] = $this->get253StateCodeword(129, $i); |
| 545 | } |
| 546 | } |
| 547 | } |
| 548 | // add error correction codewords |
| 549 | $cw = $this->getErrorCorrection($cw, $params[13], $params[14], $params[15]); |
| 550 | // initialize empty arrays |
| 551 | $grid = \array_fill(0, $params[2] * $params[3], 0); |
| 552 | // get placement map |
| 553 | $places = $this->getPlacementMap($params[2], $params[3]); |
| 554 | // fill the grid with data |
| 555 | $grid = array(); |
| 556 | $i = 0; |
| 557 | // region data row max index |
| 558 | $rdri = $params[4] - 1; |
| 559 | // region data column max index |
| 560 | $rdci = $params[5] - 1; |
| 561 | // for each vertical region |
| 562 | for ($vr = 0; $vr < $params[9]; ++$vr) { |
| 563 | // for each row on region |
| 564 | for ($r = 0; $r < $params[4]; ++$r) { |
| 565 | // get row |
| 566 | $row = $vr * $params[4] + $r; |
| 567 | // for each horizontal region |
| 568 | for ($hr = 0; $hr < $params[8]; ++$hr) { |
| 569 | // for each column on region |
| 570 | for ($c = 0; $c < $params[5]; ++$c) { |
| 571 | // get column |
| 572 | $col = $hr * $params[5] + $c; |
| 573 | // braw bits by case |
| 574 | if ($r == 0) { |
| 575 | // top finder pattern |
| 576 | if ($c % 2) { |
| 577 | $grid[$row][$col] = 0; |
| 578 | } else { |
| 579 | $grid[$row][$col] = 1; |
| 580 | } |
| 581 | } elseif ($r == $rdri) { |
| 582 | // bottom finder pattern |
| 583 | $grid[$row][$col] = 1; |
| 584 | } elseif ($c == 0) { |
| 585 | // left finder pattern |
| 586 | $grid[$row][$col] = 1; |
| 587 | } elseif ($c == $rdci) { |
| 588 | // right finder pattern |
| 589 | if ($r % 2) { |
| 590 | $grid[$row][$col] = 1; |
| 591 | } else { |
| 592 | $grid[$row][$col] = 0; |
| 593 | } |
| 594 | } else { |
| 595 | // data bit |
| 596 | if ($places[$i] < 2) { |
| 597 | $grid[$row][$col] = $places[$i]; |
| 598 | } else { |
| 599 | // codeword ID |
| 600 | $cw_id = \floor($places[$i] / 10) - 1; |
| 601 | // codeword BIT mask |
| 602 | $cw_bit = \pow(2, 8 - $places[$i] % 10); |
| 603 | $grid[$row][$col] = ($cw[$cw_id] & $cw_bit) == 0 ? 0 : 1; |
| 604 | } |
| 605 | ++$i; |
| 606 | } |
| 607 | } |
| 608 | } |
| 609 | } |
| 610 | } |
| 611 | $this->barcode_array['num_rows'] = $params[0]; |
| 612 | $this->barcode_array['num_cols'] = $params[1]; |
| 613 | $this->barcode_array['bcode'] = $grid; |
| 614 | } |
| 615 | /** |
| 616 | * Returns a barcode array which is readable by TCPDF |
| 617 | * @return array barcode array readable by TCPDF; |
| 618 | * @public |
| 619 | */ |
| 620 | public function getBarcodeArray() |
| 621 | { |
| 622 | return $this->barcode_array; |
| 623 | } |
| 624 | /** |
| 625 | * Product of two numbers in a Power-of-Two Galois Field |
| 626 | * @param int $a first number to multiply. |
| 627 | * @param int $b second number to multiply. |
| 628 | * @param array $log Log table. |
| 629 | * @param array $alog Anti-Log table. |
| 630 | * @param int $gf Number of Factors of the Reed-Solomon polynomial. |
| 631 | * @return int product |
| 632 | * @protected |
| 633 | */ |
| 634 | protected function getGFProduct($a, $b, $log, $alog, $gf) |
| 635 | { |
| 636 | if ($a == 0 or $b == 0) { |
| 637 | return 0; |
| 638 | } |
| 639 | return $alog[($log[$a] + $log[$b]) % ($gf - 1)]; |
| 640 | } |
| 641 | /** |
| 642 | * Add error correction codewords to data codewords array (ANNEX E). |
| 643 | * @param array $wd Array of datacodewords. |
| 644 | * @param int $nb Number of blocks. |
| 645 | * @param int $nd Number of data codewords per block. |
| 646 | * @param int $nc Number of correction codewords per block. |
| 647 | * @param int $gf numner of fields on log/antilog table (power of 2). |
| 648 | * @param int $pp The value of its prime modulus polynomial (301 for ECC200). |
| 649 | * @return array data codewords + error codewords |
| 650 | * @protected |
| 651 | */ |
| 652 | protected function getErrorCorrection($wd, $nb, $nd, $nc, $gf = 256, $pp = 301) |
| 653 | { |
| 654 | // generate the log ($log) and antilog ($alog) tables |
| 655 | $log[0] = 0; |
| 656 | $alog[0] = 1; |
| 657 | for ($i = 1; $i < $gf; ++$i) { |
| 658 | $alog[$i] = $alog[$i - 1] * 2; |
| 659 | if ($alog[$i] >= $gf) { |
| 660 | $alog[$i] ^= $pp; |
| 661 | } |
| 662 | $log[$alog[$i]] = $i; |
| 663 | } |
| 664 | \ksort($log); |
| 665 | // generate the polynomial coefficients (c) |
| 666 | $c = \array_fill(0, $nc + 1, 0); |
| 667 | $c[0] = 1; |
| 668 | for ($i = 1; $i <= $nc; ++$i) { |
| 669 | $c[$i] = $c[$i - 1]; |
| 670 | for ($j = $i - 1; $j >= 1; --$j) { |
| 671 | $c[$j] = $c[$j - 1] ^ $this->getGFProduct($c[$j], $alog[$i], $log, $alog, $gf); |
| 672 | } |
| 673 | $c[0] = $this->getGFProduct($c[0], $alog[$i], $log, $alog, $gf); |
| 674 | } |
| 675 | \ksort($c); |
| 676 | // total number of data codewords |
| 677 | $num_wd = $nb * $nd; |
| 678 | // total number of error codewords |
| 679 | $num_we = $nb * $nc; |
| 680 | // for each block |
| 681 | for ($b = 0; $b < $nb; ++$b) { |
| 682 | // create interleaved data block |
| 683 | $block = array(); |
| 684 | for ($n = $b; $n < $num_wd; $n += $nb) { |
| 685 | $block[] = $wd[$n]; |
| 686 | } |
| 687 | // initialize error codewords |
| 688 | $we = \array_fill(0, $nc + 1, 0); |
| 689 | // calculate error correction codewords for this block |
| 690 | for ($i = 0; $i < $nd; ++$i) { |
| 691 | $k = $we[0] ^ $block[$i]; |
| 692 | for ($j = 0; $j < $nc; ++$j) { |
| 693 | $we[$j] = $we[$j + 1] ^ $this->getGFProduct($k, $c[$nc - $j - 1], $log, $alog, $gf); |
| 694 | } |
| 695 | } |
| 696 | // add error codewords at the end of data codewords |
| 697 | $j = 0; |
| 698 | for ($i = $b; $i < $num_we; $i += $nb) { |
| 699 | $wd[$num_wd + $i] = $we[$j]; |
| 700 | ++$j; |
| 701 | } |
| 702 | } |
| 703 | // reorder codewords |
| 704 | \ksort($wd); |
| 705 | return $wd; |
| 706 | } |
| 707 | /** |
| 708 | * Return the 253-state codeword |
| 709 | * @param int $cwpad Pad codeword. |
| 710 | * @param int $cwpos Number of data codewords from the beginning of encoded data. |
| 711 | * @return int pad codeword |
| 712 | * @protected |
| 713 | */ |
| 714 | protected function get253StateCodeword($cwpad, $cwpos) |
| 715 | { |
| 716 | $pad = $cwpad + (149 * $cwpos % 253 + 1); |
| 717 | if ($pad > 254) { |
| 718 | $pad -= 254; |
| 719 | } |
| 720 | return $pad; |
| 721 | } |
| 722 | /** |
| 723 | * Return the 255-state codeword |
| 724 | * @param int $cwpad Pad codeword. |
| 725 | * @param int $cwpos Number of data codewords from the beginning of encoded data. |
| 726 | * @return int pad codeword |
| 727 | * @protected |
| 728 | */ |
| 729 | protected function get255StateCodeword($cwpad, $cwpos) |
| 730 | { |
| 731 | $pad = $cwpad + (149 * $cwpos % 255 + 1); |
| 732 | if ($pad > 255) { |
| 733 | $pad -= 256; |
| 734 | } |
| 735 | return $pad; |
| 736 | } |
| 737 | /** |
| 738 | * Returns true if the char belongs to the selected mode |
| 739 | * @param int $chr Character (byte) to check. |
| 740 | * @param int $mode Current encoding mode. |
| 741 | * @return boolean true if the char is of the selected mode. |
| 742 | * @protected |
| 743 | */ |
| 744 | protected function isCharMode($chr, $mode) |
| 745 | { |
| 746 | $status = \false; |
| 747 | switch ($mode) { |
| 748 | case \ENC_ASCII: |
| 749 | // ASCII character 0 to 127 |
| 750 | $status = ($chr >= 0 and $chr <= 127); |
| 751 | break; |
| 752 | case \ENC_C40: |
| 753 | // Upper-case alphanumeric |
| 754 | $status = ($chr == 32 or $chr >= 48 and $chr <= 57 or $chr >= 65 and $chr <= 90); |
| 755 | break; |
| 756 | case \ENC_TXT: |
| 757 | // Lower-case alphanumeric |
| 758 | $status = ($chr == 32 or $chr >= 48 and $chr <= 57 or $chr >= 97 and $chr <= 122); |
| 759 | break; |
| 760 | case \ENC_X12: |
| 761 | // ANSI X12 |
| 762 | $status = ($chr == 13 or $chr == 42 or $chr == 62); |
| 763 | break; |
| 764 | case \ENC_EDF: |
| 765 | // ASCII character 32 to 94 |
| 766 | $status = ($chr >= 32 and $chr <= 94); |
| 767 | break; |
| 768 | case \ENC_BASE256: |
| 769 | // Function character (FNC1, Structured Append, Reader Program, or Code Page) |
| 770 | $status = ($chr == 232 or $chr == 233 or $chr == 234 or $chr == 241); |
| 771 | break; |
| 772 | case \ENC_ASCII_EXT: |
| 773 | // ASCII character 128 to 255 |
| 774 | $status = ($chr >= 128 and $chr <= 255); |
| 775 | break; |
| 776 | case \ENC_ASCII_NUM: |
| 777 | // ASCII digits |
| 778 | $status = ($chr >= 48 and $chr <= 57); |
| 779 | break; |
| 780 | } |
| 781 | return $status; |
| 782 | } |
| 783 | /** |
| 784 | * The look-ahead test scans the data to be encoded to find the best mode (Annex P - steps from J to S). |
| 785 | * @param string $data data to encode |
| 786 | * @param int $pos current position |
| 787 | * @param int $mode current encoding mode |
| 788 | * @return int encoding mode |
| 789 | * @protected |
| 790 | */ |
| 791 | protected function lookAheadTest($data, $pos, $mode) |
| 792 | { |
| 793 | $data_length = \strlen($data); |
| 794 | if ($pos >= $data_length) { |
| 795 | return $mode; |
| 796 | } |
| 797 | $charscount = 0; |
| 798 | // count processed chars |
| 799 | // STEP J |
| 800 | if ($mode == \ENC_ASCII) { |
| 801 | $numch = array(0, 1, 1, 1, 1, 1.25); |
| 802 | } else { |
| 803 | $numch = array(1, 2, 2, 2, 2, 2.25); |
| 804 | $numch[$mode] = 0; |
| 805 | } |
| 806 | while (\true) { |
| 807 | // STEP K |
| 808 | if ($pos + $charscount == $data_length) { |
| 809 | if ($numch[\ENC_ASCII] <= \ceil(\min($numch[\ENC_C40], $numch[\ENC_TXT], $numch[\ENC_X12], $numch[\ENC_EDF], $numch[\ENC_BASE256]))) { |
| 810 | return \ENC_ASCII; |
| 811 | } |
| 812 | if ($numch[\ENC_BASE256] < \ceil(\min($numch[\ENC_ASCII], $numch[\ENC_C40], $numch[\ENC_TXT], $numch[\ENC_X12], $numch[\ENC_EDF]))) { |
| 813 | return \ENC_BASE256; |
| 814 | } |
| 815 | if ($numch[\ENC_EDF] < \ceil(\min($numch[\ENC_ASCII], $numch[\ENC_C40], $numch[\ENC_TXT], $numch[\ENC_X12], $numch[\ENC_BASE256]))) { |
| 816 | return \ENC_EDF; |
| 817 | } |
| 818 | if ($numch[\ENC_TXT] < \ceil(\min($numch[\ENC_ASCII], $numch[\ENC_C40], $numch[\ENC_X12], $numch[\ENC_EDF], $numch[\ENC_BASE256]))) { |
| 819 | return \ENC_TXT; |
| 820 | } |
| 821 | if ($numch[\ENC_X12] < \ceil(\min($numch[\ENC_ASCII], $numch[\ENC_C40], $numch[\ENC_TXT], $numch[\ENC_EDF], $numch[\ENC_BASE256]))) { |
| 822 | return \ENC_X12; |
| 823 | } |
| 824 | return \ENC_C40; |
| 825 | } |
| 826 | // get char |
| 827 | $chr = \ord($data[$pos + $charscount]); |
| 828 | $charscount++; |
| 829 | // STEP L |
| 830 | if ($this->isCharMode($chr, \ENC_ASCII_NUM)) { |
| 831 | $numch[\ENC_ASCII] += 1 / 2; |
| 832 | } elseif ($this->isCharMode($chr, \ENC_ASCII_EXT)) { |
| 833 | $numch[\ENC_ASCII] = \ceil($numch[\ENC_ASCII]); |
| 834 | $numch[\ENC_ASCII] += 2; |
| 835 | } else { |
| 836 | $numch[\ENC_ASCII] = \ceil($numch[\ENC_ASCII]); |
| 837 | $numch[\ENC_ASCII] += 1; |
| 838 | } |
| 839 | // STEP M |
| 840 | if ($this->isCharMode($chr, \ENC_C40)) { |
| 841 | $numch[\ENC_C40] += 2 / 3; |
| 842 | } elseif ($this->isCharMode($chr, \ENC_ASCII_EXT)) { |
| 843 | $numch[\ENC_C40] += 8 / 3; |
| 844 | } else { |
| 845 | $numch[\ENC_C40] += 4 / 3; |
| 846 | } |
| 847 | // STEP N |
| 848 | if ($this->isCharMode($chr, \ENC_TXT)) { |
| 849 | $numch[\ENC_TXT] += 2 / 3; |
| 850 | } elseif ($this->isCharMode($chr, \ENC_ASCII_EXT)) { |
| 851 | $numch[\ENC_TXT] += 8 / 3; |
| 852 | } else { |
| 853 | $numch[\ENC_TXT] += 4 / 3; |
| 854 | } |
| 855 | // STEP O |
| 856 | if ($this->isCharMode($chr, \ENC_X12) or $this->isCharMode($chr, \ENC_C40)) { |
| 857 | $numch[\ENC_X12] += 2 / 3; |
| 858 | } elseif ($this->isCharMode($chr, \ENC_ASCII_EXT)) { |
| 859 | $numch[\ENC_X12] += 13 / 3; |
| 860 | } else { |
| 861 | $numch[\ENC_X12] += 10 / 3; |
| 862 | } |
| 863 | // STEP P |
| 864 | if ($this->isCharMode($chr, \ENC_EDF)) { |
| 865 | $numch[\ENC_EDF] += 3 / 4; |
| 866 | } elseif ($this->isCharMode($chr, \ENC_ASCII_EXT)) { |
| 867 | $numch[\ENC_EDF] += 17 / 4; |
| 868 | } else { |
| 869 | $numch[\ENC_EDF] += 13 / 4; |
| 870 | } |
| 871 | // STEP Q |
| 872 | if ($this->isCharMode($chr, \ENC_BASE256)) { |
| 873 | $numch[\ENC_BASE256] += 4; |
| 874 | } else { |
| 875 | $numch[\ENC_BASE256] += 1; |
| 876 | } |
| 877 | // STEP R |
| 878 | if ($charscount >= 4) { |
| 879 | if ($numch[\ENC_ASCII] + 1 <= \min($numch[\ENC_C40], $numch[\ENC_TXT], $numch[\ENC_X12], $numch[\ENC_EDF], $numch[\ENC_BASE256])) { |
| 880 | return \ENC_ASCII; |
| 881 | } |
| 882 | if ($numch[\ENC_BASE256] + 1 <= $numch[\ENC_ASCII] or $numch[\ENC_BASE256] + 1 < \min($numch[\ENC_C40], $numch[\ENC_TXT], $numch[\ENC_X12], $numch[\ENC_EDF])) { |
| 883 | return \ENC_BASE256; |
| 884 | } |
| 885 | if ($numch[\ENC_EDF] + 1 < \min($numch[\ENC_ASCII], $numch[\ENC_C40], $numch[\ENC_TXT], $numch[\ENC_X12], $numch[\ENC_BASE256])) { |
| 886 | return \ENC_EDF; |
| 887 | } |
| 888 | if ($numch[\ENC_TXT] + 1 < \min($numch[\ENC_ASCII], $numch[\ENC_C40], $numch[\ENC_X12], $numch[\ENC_EDF], $numch[\ENC_BASE256])) { |
| 889 | return \ENC_TXT; |
| 890 | } |
| 891 | if ($numch[\ENC_X12] + 1 < \min($numch[\ENC_ASCII], $numch[\ENC_C40], $numch[\ENC_TXT], $numch[\ENC_EDF], $numch[\ENC_BASE256])) { |
| 892 | return \ENC_X12; |
| 893 | } |
| 894 | if ($numch[\ENC_C40] + 1 < \min($numch[\ENC_ASCII], $numch[\ENC_TXT], $numch[\ENC_EDF], $numch[\ENC_BASE256])) { |
| 895 | if ($numch[\ENC_C40] < $numch[\ENC_X12]) { |
| 896 | return \ENC_C40; |
| 897 | } |
| 898 | if ($numch[\ENC_C40] == $numch[\ENC_X12]) { |
| 899 | $k = $pos + $charscount + 1; |
| 900 | while ($k < $data_length) { |
| 901 | $tmpchr = \ord($data[$k]); |
| 902 | if ($this->isCharMode($tmpchr, \ENC_X12)) { |
| 903 | return \ENC_X12; |
| 904 | } elseif (!($this->isCharMode($tmpchr, \ENC_X12) or $this->isCharMode($tmpchr, \ENC_C40))) { |
| 905 | break; |
| 906 | } |
| 907 | ++$k; |
| 908 | } |
| 909 | return \ENC_C40; |
| 910 | } |
| 911 | } |
| 912 | } |
| 913 | } |
| 914 | // end of while |
| 915 | } |
| 916 | /** |
| 917 | * Get the switching codeword to a new encoding mode (latch codeword) |
| 918 | * @param int $mode New encoding mode. |
| 919 | * @return int Switch codeword. |
| 920 | * @protected |
| 921 | */ |
| 922 | protected function getSwitchEncodingCodeword($mode) |
| 923 | { |
| 924 | switch ($mode) { |
| 925 | case \ENC_ASCII: |
| 926 | // ASCII character 0 to 127 |
| 927 | $cw = 254; |
| 928 | if ($this->last_enc == \ENC_EDF) { |
| 929 | $cw = 124; |
| 930 | } |
| 931 | break; |
| 932 | case \ENC_C40: |
| 933 | // Upper-case alphanumeric |
| 934 | $cw = 230; |
| 935 | break; |
| 936 | case \ENC_TXT: |
| 937 | // Lower-case alphanumeric |
| 938 | $cw = 239; |
| 939 | break; |
| 940 | case \ENC_X12: |
| 941 | // ANSI X12 |
| 942 | $cw = 238; |
| 943 | break; |
| 944 | case \ENC_EDF: |
| 945 | // ASCII character 32 to 94 |
| 946 | $cw = 240; |
| 947 | break; |
| 948 | case \ENC_BASE256: |
| 949 | // Function character (FNC1, Structured Append, Reader Program, or Code Page) |
| 950 | $cw = 231; |
| 951 | break; |
| 952 | } |
| 953 | return $cw; |
| 954 | } |
| 955 | /** |
| 956 | * Choose the minimum matrix size and return the max number of data codewords. |
| 957 | * @param int $numcw Number of current codewords. |
| 958 | * @return int number of data codewords in matrix |
| 959 | * @protected |
| 960 | */ |
| 961 | protected function getMaxDataCodewords($numcw) |
| 962 | { |
| 963 | foreach ($this->symbattr as $key => $matrix) { |
| 964 | if ($matrix[11] >= $numcw) { |
| 965 | return $matrix[11]; |
| 966 | } |
| 967 | } |
| 968 | return 0; |
| 969 | } |
| 970 | /** |
| 971 | * Get high level encoding using the minimum symbol data characters for ECC 200 |
| 972 | * @param string $data data to encode |
| 973 | * @return array of codewords |
| 974 | * @protected |
| 975 | */ |
| 976 | protected function getHighLevelEncoding($data) |
| 977 | { |
| 978 | // STEP A. Start in ASCII encodation. |
| 979 | $enc = \ENC_ASCII; |
| 980 | // current encoding mode |
| 981 | $pos = 0; |
| 982 | // current position |
| 983 | $cw = array(); |
| 984 | // array of codewords to be returned |
| 985 | $cw_num = 0; |
| 986 | // number of data codewords |
| 987 | $data_length = \strlen($data); |
| 988 | // number of chars |
| 989 | while ($pos < $data_length) { |
| 990 | // set last used encoding |
| 991 | $this->last_enc = $enc; |
| 992 | switch ($enc) { |
| 993 | case \ENC_ASCII: |
| 994 | // STEP B. While in ASCII encodation |
| 995 | if ($data_length > 1 and $pos < $data_length - 1 and ($this->isCharMode(\ord($data[$pos]), \ENC_ASCII_NUM) and $this->isCharMode(\ord($data[$pos + 1]), \ENC_ASCII_NUM))) { |
| 996 | // 1. If the next data sequence is at least 2 consecutive digits, encode the next two digits as a double digit in ASCII mode. |
| 997 | $cw[] = \intval(\substr($data, $pos, 2)) + 130; |
| 998 | ++$cw_num; |
| 999 | $pos += 2; |
| 1000 | } else { |
| 1001 | // 2. If the look-ahead test (starting at step J) indicates another mode, switch to that mode. |
| 1002 | $newenc = $this->lookAheadTest($data, $pos, $enc); |
| 1003 | if ($newenc != $enc) { |
| 1004 | // switch to new encoding |
| 1005 | $enc = $newenc; |
| 1006 | $cw[] = $this->getSwitchEncodingCodeword($enc); |
| 1007 | ++$cw_num; |
| 1008 | } else { |
| 1009 | // get new byte |
| 1010 | $chr = \ord($data[$pos]); |
| 1011 | ++$pos; |
| 1012 | if ($this->isCharMode($chr, \ENC_ASCII_EXT)) { |
| 1013 | // 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. |
| 1014 | $cw[] = 235; |
| 1015 | $cw[] = $chr - 127; |
| 1016 | $cw_num += 2; |
| 1017 | } else { |
| 1018 | // 4. Otherwise process the next data character in ASCII encodation. |
| 1019 | $cw[] = $chr + 1; |
| 1020 | ++$cw_num; |
| 1021 | } |
| 1022 | } |
| 1023 | } |
| 1024 | break; |
| 1025 | case \ENC_C40: |
| 1026 | // Upper-case alphanumeric |
| 1027 | case \ENC_TXT: |
| 1028 | // Lower-case alphanumeric |
| 1029 | case \ENC_X12: |
| 1030 | // ANSI X12 |
| 1031 | $temp_cw = array(); |
| 1032 | $p = 0; |
| 1033 | $epos = $pos; |
| 1034 | // get charset ID |
| 1035 | $set_id = $this->chset_id[$enc]; |
| 1036 | // get basic charset for current encoding |
| 1037 | $charset = $this->chset[$set_id]; |
| 1038 | do { |
| 1039 | // 2. process the next character in C40 encodation. |
| 1040 | $chr = \ord($data[$epos]); |
| 1041 | ++$epos; |
| 1042 | // check for extended character |
| 1043 | if ($chr & 0x80) { |
| 1044 | if ($enc == \ENC_X12) { |
| 1045 | return \false; |
| 1046 | } |
| 1047 | $chr = $chr & 0x7f; |
| 1048 | $temp_cw[] = 1; |
| 1049 | // shift 2 |
| 1050 | $temp_cw[] = 30; |
| 1051 | // upper shift |
| 1052 | $p += 2; |
| 1053 | } |
| 1054 | if (isset($charset[$chr])) { |
| 1055 | $temp_cw[] = $charset[$chr]; |
| 1056 | ++$p; |
| 1057 | } else { |
| 1058 | if (isset($this->chset['SH1'][$chr])) { |
| 1059 | $temp_cw[] = 0; |
| 1060 | // shift 1 |
| 1061 | $shiftset = $this->chset['SH1']; |
| 1062 | } elseif (isset($this->chset['SH2'][$chr])) { |
| 1063 | $temp_cw[] = 1; |
| 1064 | // shift 2 |
| 1065 | $shiftset = $this->chset['SH2']; |
| 1066 | } elseif ($enc == \ENC_C40 and isset($this->chset['S3C'][$chr])) { |
| 1067 | $temp_cw[] = 2; |
| 1068 | // shift 3 |
| 1069 | $shiftset = $this->chset['S3C']; |
| 1070 | } elseif ($enc == \ENC_TXT and isset($this->chset['S3T'][$chr])) { |
| 1071 | $temp_cw[] = 2; |
| 1072 | // shift 3 |
| 1073 | $shiftset = $this->chset['S3T']; |
| 1074 | } else { |
| 1075 | return \false; |
| 1076 | } |
| 1077 | $temp_cw[] = $shiftset[$chr]; |
| 1078 | $p += 2; |
| 1079 | } |
| 1080 | if ($p >= 3) { |
| 1081 | $c1 = \array_shift($temp_cw); |
| 1082 | $c2 = \array_shift($temp_cw); |
| 1083 | $c3 = \array_shift($temp_cw); |
| 1084 | $p -= 3; |
| 1085 | $tmp = 1600 * $c1 + 40 * $c2 + $c3 + 1; |
| 1086 | $cw[] = $tmp >> 8; |
| 1087 | $cw[] = $tmp % 256; |
| 1088 | $cw_num += 2; |
| 1089 | $pos = $epos; |
| 1090 | // 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. |
| 1091 | $newenc = $this->lookAheadTest($data, $pos, $enc); |
| 1092 | if ($newenc != $enc) { |
| 1093 | // switch to new encoding |
| 1094 | $enc = $newenc; |
| 1095 | if ($enc != \ENC_ASCII) { |
| 1096 | // set unlatch character |
| 1097 | $cw[] = $this->getSwitchEncodingCodeword(\ENC_ASCII); |
| 1098 | ++$cw_num; |
| 1099 | } |
| 1100 | $cw[] = $this->getSwitchEncodingCodeword($enc); |
| 1101 | ++$cw_num; |
| 1102 | $pos -= $p; |
| 1103 | $p = 0; |
| 1104 | break; |
| 1105 | } |
| 1106 | } |
| 1107 | } while ($p > 0 and $epos < $data_length); |
| 1108 | // process last data (if any) |
| 1109 | if ($p > 0) { |
| 1110 | // get remaining number of data symbols |
| 1111 | $cwr = $this->getMaxDataCodewords($cw_num) - $cw_num; |
| 1112 | if ($cwr == 1 and $p == 1) { |
| 1113 | // d. If one symbol character remains and one C40 value (data character) remains to be encoded |
| 1114 | $c1 = \array_shift($temp_cw); |
| 1115 | --$p; |
| 1116 | $cw[] = $chr + 1; |
| 1117 | ++$cw_num; |
| 1118 | $pos = $epos; |
| 1119 | $enc = \ENC_ASCII; |
| 1120 | $this->last_enc = $enc; |
| 1121 | } elseif ($cwr == 2 and $p == 1) { |
| 1122 | // c. If two symbol characters remain and only one C40 value (data character) remains to be encoded |
| 1123 | $c1 = \array_shift($temp_cw); |
| 1124 | --$p; |
| 1125 | $cw[] = 254; |
| 1126 | $cw[] = $chr + 1; |
| 1127 | $cw_num += 2; |
| 1128 | $pos = $epos; |
| 1129 | $enc = \ENC_ASCII; |
| 1130 | $this->last_enc = $enc; |
| 1131 | } elseif ($cwr == 2 and $p == 2) { |
| 1132 | // b. If two symbol characters remain and two C40 values remain to be encoded |
| 1133 | $c1 = \array_shift($temp_cw); |
| 1134 | $c2 = \array_shift($temp_cw); |
| 1135 | $p -= 2; |
| 1136 | $tmp = 1600 * $c1 + 40 * $c2 + 1; |
| 1137 | $cw[] = $tmp >> 8; |
| 1138 | $cw[] = $tmp % 256; |
| 1139 | $cw_num += 2; |
| 1140 | $pos = $epos; |
| 1141 | $enc = \ENC_ASCII; |
| 1142 | $this->last_enc = $enc; |
| 1143 | } else { |
| 1144 | // switch to ASCII encoding |
| 1145 | if ($enc != \ENC_ASCII) { |
| 1146 | $enc = \ENC_ASCII; |
| 1147 | $this->last_enc = $enc; |
| 1148 | $cw[] = $this->getSwitchEncodingCodeword($enc); |
| 1149 | ++$cw_num; |
| 1150 | $pos = $epos - $p; |
| 1151 | } |
| 1152 | } |
| 1153 | } |
| 1154 | break; |
| 1155 | case \ENC_EDF: |
| 1156 | // F. While in EDIFACT (EDF) encodation |
| 1157 | // initialize temporary array with 0 length |
| 1158 | $temp_cw = array(); |
| 1159 | $epos = $pos; |
| 1160 | $field_length = 0; |
| 1161 | $newenc = $enc; |
| 1162 | do { |
| 1163 | // 2. process the next character in EDIFACT encodation. |
| 1164 | $chr = \ord($data[$epos]); |
| 1165 | if ($this->isCharMode($chr, \ENC_EDF)) { |
| 1166 | ++$epos; |
| 1167 | $temp_cw[] = $chr; |
| 1168 | ++$field_length; |
| 1169 | } |
| 1170 | if ($field_length == 4 or $epos == $data_length or !$this->isCharMode($chr, \ENC_EDF)) { |
| 1171 | if ($epos == $data_length and $field_length < 3) { |
| 1172 | $enc = \ENC_ASCII; |
| 1173 | $cw[] = $this->getSwitchEncodingCodeword($enc); |
| 1174 | ++$cw_num; |
| 1175 | break; |
| 1176 | } |
| 1177 | if ($field_length < 4) { |
| 1178 | // set unlatch character |
| 1179 | $temp_cw[] = 0x1f; |
| 1180 | ++$field_length; |
| 1181 | // fill empty characters |
| 1182 | for ($i = $field_length; $i < 4; ++$i) { |
| 1183 | $temp_cw[] = 0; |
| 1184 | } |
| 1185 | $enc = \ENC_ASCII; |
| 1186 | $this->last_enc = $enc; |
| 1187 | } |
| 1188 | // encodes four data characters in three codewords |
| 1189 | $tcw = (($temp_cw[0] & 0x3f) << 2) + (($temp_cw[1] & 0x30) >> 4); |
| 1190 | if ($tcw > 0) { |
| 1191 | $cw[] = $tcw; |
| 1192 | $cw_num++; |
| 1193 | } |
| 1194 | $tcw = (($temp_cw[1] & 0xf) << 4) + (($temp_cw[2] & 0x3c) >> 2); |
| 1195 | if ($tcw > 0) { |
| 1196 | $cw[] = $tcw; |
| 1197 | $cw_num++; |
| 1198 | } |
| 1199 | $tcw = (($temp_cw[2] & 0x3) << 6) + ($temp_cw[3] & 0x3f); |
| 1200 | if ($tcw > 0) { |
| 1201 | $cw[] = $tcw; |
| 1202 | $cw_num++; |
| 1203 | } |
| 1204 | $temp_cw = array(); |
| 1205 | $pos = $epos; |
| 1206 | $field_length = 0; |
| 1207 | if ($enc == \ENC_ASCII) { |
| 1208 | break; |
| 1209 | // exit from EDIFACT mode |
| 1210 | } |
| 1211 | } |
| 1212 | } while ($epos < $data_length); |
| 1213 | break; |
| 1214 | case \ENC_BASE256: |
| 1215 | // G. While in Base 256 (B256) encodation |
| 1216 | // initialize temporary array with 0 length |
| 1217 | $temp_cw = array(); |
| 1218 | $field_length = 0; |
| 1219 | while ($pos < $data_length and $field_length <= 1555) { |
| 1220 | $newenc = $this->lookAheadTest($data, $pos, $enc); |
| 1221 | if ($newenc != $enc) { |
| 1222 | // 1. If the look-ahead test (starting at step J) indicates another mode, switch to that mode. |
| 1223 | $enc = $newenc; |
| 1224 | break; |
| 1225 | // exit from B256 mode |
| 1226 | } else { |
| 1227 | // 2. Otherwise, process the next character in Base 256 encodation. |
| 1228 | $chr = \ord($data[$pos]); |
| 1229 | ++$pos; |
| 1230 | $temp_cw[] = $chr; |
| 1231 | ++$field_length; |
| 1232 | } |
| 1233 | } |
| 1234 | // set field length |
| 1235 | if ($field_length <= 249) { |
| 1236 | $cw[] = $this->get255StateCodeword($field_length, $cw_num + 1); |
| 1237 | ++$cw_num; |
| 1238 | } else { |
| 1239 | $cw[] = $this->get255StateCodeword(\floor($field_length / 250) + 249, $cw_num + 1); |
| 1240 | $cw[] = $this->get255StateCodeword($field_length % 250, $cw_num + 2); |
| 1241 | $cw_num += 2; |
| 1242 | } |
| 1243 | if (!empty($temp_cw)) { |
| 1244 | // add B256 field |
| 1245 | foreach ($temp_cw as $p => $cht) { |
| 1246 | $cw[] = $this->get255StateCodeword($cht, $cw_num + $p + 1); |
| 1247 | } |
| 1248 | } |
| 1249 | break; |
| 1250 | } |
| 1251 | // end of switch enc |
| 1252 | } |
| 1253 | // end of while |
| 1254 | return $cw; |
| 1255 | } |
| 1256 | /** |
| 1257 | * Places "chr+bit" with appropriate wrapping within array[]. |
| 1258 | * (Annex F - ECC 200 symbol character placement) |
| 1259 | * @param array $marr Array of symbols. |
| 1260 | * @param int $nrow Number of rows. |
| 1261 | * @param int $ncol Number of columns. |
| 1262 | * @param int $row Row number. |
| 1263 | * @param int $col Column number. |
| 1264 | * @param int $chr Char byte. |
| 1265 | * @param int $bit Bit. |
| 1266 | * @return array |
| 1267 | * @protected |
| 1268 | */ |
| 1269 | protected function placeModule($marr, $nrow, $ncol, $row, $col, $chr, $bit) |
| 1270 | { |
| 1271 | if ($row < 0) { |
| 1272 | $row += $nrow; |
| 1273 | $col += 4 - ($nrow + 4) % 8; |
| 1274 | } |
| 1275 | if ($col < 0) { |
| 1276 | $col += $ncol; |
| 1277 | $row += 4 - ($ncol + 4) % 8; |
| 1278 | } |
| 1279 | $marr[$row * $ncol + $col] = 10 * $chr + $bit; |
| 1280 | return $marr; |
| 1281 | } |
| 1282 | /** |
| 1283 | * Places the 8 bits of a utah-shaped symbol character. |
| 1284 | * (Annex F - ECC 200 symbol character placement) |
| 1285 | * @param array $marr Array of symbols. |
| 1286 | * @param int $nrow Number of rows. |
| 1287 | * @param int $ncol Number of columns. |
| 1288 | * @param int $row Row number. |
| 1289 | * @param int $col Column number. |
| 1290 | * @param int $chr Char byte. |
| 1291 | * @return array |
| 1292 | * @protected |
| 1293 | */ |
| 1294 | protected function placeUtah($marr, $nrow, $ncol, $row, $col, $chr) |
| 1295 | { |
| 1296 | $marr = $this->placeModule($marr, $nrow, $ncol, $row - 2, $col - 2, $chr, 1); |
| 1297 | $marr = $this->placeModule($marr, $nrow, $ncol, $row - 2, $col - 1, $chr, 2); |
| 1298 | $marr = $this->placeModule($marr, $nrow, $ncol, $row - 1, $col - 2, $chr, 3); |
| 1299 | $marr = $this->placeModule($marr, $nrow, $ncol, $row - 1, $col - 1, $chr, 4); |
| 1300 | $marr = $this->placeModule($marr, $nrow, $ncol, $row - 1, $col, $chr, 5); |
| 1301 | $marr = $this->placeModule($marr, $nrow, $ncol, $row, $col - 2, $chr, 6); |
| 1302 | $marr = $this->placeModule($marr, $nrow, $ncol, $row, $col - 1, $chr, 7); |
| 1303 | $marr = $this->placeModule($marr, $nrow, $ncol, $row, $col, $chr, 8); |
| 1304 | return $marr; |
| 1305 | } |
| 1306 | /** |
| 1307 | * Places the 8 bits of the first special corner case. |
| 1308 | * (Annex F - ECC 200 symbol character placement) |
| 1309 | * @param array $marr Array of symbols. |
| 1310 | * @param int $nrow Number of rows. |
| 1311 | * @param int $ncol Number of columns. |
| 1312 | * @param int $chr Char byte. |
| 1313 | * @return array |
| 1314 | * @protected |
| 1315 | */ |
| 1316 | protected function placeCornerA($marr, $nrow, $ncol, $chr) |
| 1317 | { |
| 1318 | $marr = $this->placeModule($marr, $nrow, $ncol, $nrow - 1, 0, $chr, 1); |
| 1319 | $marr = $this->placeModule($marr, $nrow, $ncol, $nrow - 1, 1, $chr, 2); |
| 1320 | $marr = $this->placeModule($marr, $nrow, $ncol, $nrow - 1, 2, $chr, 3); |
| 1321 | $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol - 2, $chr, 4); |
| 1322 | $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol - 1, $chr, 5); |
| 1323 | $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol - 1, $chr, 6); |
| 1324 | $marr = $this->placeModule($marr, $nrow, $ncol, 2, $ncol - 1, $chr, 7); |
| 1325 | $marr = $this->placeModule($marr, $nrow, $ncol, 3, $ncol - 1, $chr, 8); |
| 1326 | return $marr; |
| 1327 | } |
| 1328 | /** |
| 1329 | * Places the 8 bits of the second special corner case. |
| 1330 | * (Annex F - ECC 200 symbol character placement) |
| 1331 | * @param array $marr Array of symbols. |
| 1332 | * @param int $nrow Number of rows. |
| 1333 | * @param int $ncol Number of columns. |
| 1334 | * @param int $chr Char byte. |
| 1335 | * @return array |
| 1336 | * @protected |
| 1337 | */ |
| 1338 | protected function placeCornerB($marr, $nrow, $ncol, $chr) |
| 1339 | { |
| 1340 | $marr = $this->placeModule($marr, $nrow, $ncol, $nrow - 3, 0, $chr, 1); |
| 1341 | $marr = $this->placeModule($marr, $nrow, $ncol, $nrow - 2, 0, $chr, 2); |
| 1342 | $marr = $this->placeModule($marr, $nrow, $ncol, $nrow - 1, 0, $chr, 3); |
| 1343 | $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol - 4, $chr, 4); |
| 1344 | $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol - 3, $chr, 5); |
| 1345 | $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol - 2, $chr, 6); |
| 1346 | $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol - 1, $chr, 7); |
| 1347 | $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol - 1, $chr, 8); |
| 1348 | return $marr; |
| 1349 | } |
| 1350 | /** |
| 1351 | * Places the 8 bits of the third special corner case. |
| 1352 | * (Annex F - ECC 200 symbol character placement) |
| 1353 | * @param array $marr Array of symbols. |
| 1354 | * @param int $nrow Number of rows. |
| 1355 | * @param int $ncol Number of columns. |
| 1356 | * @param int $chr Char byte. |
| 1357 | * @return array |
| 1358 | * @protected |
| 1359 | */ |
| 1360 | protected function placeCornerC($marr, $nrow, $ncol, $chr) |
| 1361 | { |
| 1362 | $marr = $this->placeModule($marr, $nrow, $ncol, $nrow - 3, 0, $chr, 1); |
| 1363 | $marr = $this->placeModule($marr, $nrow, $ncol, $nrow - 2, 0, $chr, 2); |
| 1364 | $marr = $this->placeModule($marr, $nrow, $ncol, $nrow - 1, 0, $chr, 3); |
| 1365 | $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol - 2, $chr, 4); |
| 1366 | $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol - 1, $chr, 5); |
| 1367 | $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol - 1, $chr, 6); |
| 1368 | $marr = $this->placeModule($marr, $nrow, $ncol, 2, $ncol - 1, $chr, 7); |
| 1369 | $marr = $this->placeModule($marr, $nrow, $ncol, 3, $ncol - 1, $chr, 8); |
| 1370 | return $marr; |
| 1371 | } |
| 1372 | /** |
| 1373 | * Places the 8 bits of the fourth special corner case. |
| 1374 | * (Annex F - ECC 200 symbol character placement) |
| 1375 | * @param array $marr Array of symbols. |
| 1376 | * @param int $nrow Number of rows. |
| 1377 | * @param int $ncol Number of columns. |
| 1378 | * @param int $chr Char byte. |
| 1379 | * @return array |
| 1380 | * @protected |
| 1381 | */ |
| 1382 | protected function placeCornerD($marr, $nrow, $ncol, $chr) |
| 1383 | { |
| 1384 | $marr = $this->placeModule($marr, $nrow, $ncol, $nrow - 1, 0, $chr, 1); |
| 1385 | $marr = $this->placeModule($marr, $nrow, $ncol, $nrow - 1, $ncol - 1, $chr, 2); |
| 1386 | $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol - 3, $chr, 3); |
| 1387 | $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol - 2, $chr, 4); |
| 1388 | $marr = $this->placeModule($marr, $nrow, $ncol, 0, $ncol - 1, $chr, 5); |
| 1389 | $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol - 3, $chr, 6); |
| 1390 | $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol - 2, $chr, 7); |
| 1391 | $marr = $this->placeModule($marr, $nrow, $ncol, 1, $ncol - 1, $chr, 8); |
| 1392 | return $marr; |
| 1393 | } |
| 1394 | /** |
| 1395 | * Build a placement map. |
| 1396 | * (Annex F - ECC 200 symbol character placement) |
| 1397 | * @param int $nrow Number of rows. |
| 1398 | * @param int $ncol Number of columns. |
| 1399 | * @return array |
| 1400 | * @protected |
| 1401 | */ |
| 1402 | protected function getPlacementMap($nrow, $ncol) |
| 1403 | { |
| 1404 | // initialize array with zeros |
| 1405 | $marr = \array_fill(0, $nrow * $ncol, 0); |
| 1406 | // set starting values |
| 1407 | $chr = 1; |
| 1408 | $row = 4; |
| 1409 | $col = 0; |
| 1410 | do { |
| 1411 | // repeatedly first check for one of the special corner cases, then |
| 1412 | if ($row == $nrow and $col == 0) { |
| 1413 | $marr = $this->placeCornerA($marr, $nrow, $ncol, $chr); |
| 1414 | ++$chr; |
| 1415 | } |
| 1416 | if ($row == $nrow - 2 and $col == 0 and $ncol % 4) { |
| 1417 | $marr = $this->placeCornerB($marr, $nrow, $ncol, $chr); |
| 1418 | ++$chr; |
| 1419 | } |
| 1420 | if ($row == $nrow - 2 and $col == 0 and $ncol % 8 == 4) { |
| 1421 | $marr = $this->placeCornerC($marr, $nrow, $ncol, $chr); |
| 1422 | ++$chr; |
| 1423 | } |
| 1424 | if ($row == $nrow + 4 and $col == 2 and !($ncol % 8)) { |
| 1425 | $marr = $this->placeCornerD($marr, $nrow, $ncol, $chr); |
| 1426 | ++$chr; |
| 1427 | } |
| 1428 | // sweep upward diagonally, inserting successive characters, |
| 1429 | do { |
| 1430 | if ($row < $nrow and $col >= 0 and !$marr[$row * $ncol + $col]) { |
| 1431 | $marr = $this->placeUtah($marr, $nrow, $ncol, $row, $col, $chr); |
| 1432 | ++$chr; |
| 1433 | } |
| 1434 | $row -= 2; |
| 1435 | $col += 2; |
| 1436 | } while ($row >= 0 and $col < $ncol); |
| 1437 | ++$row; |
| 1438 | $col += 3; |
| 1439 | // & then sweep downward diagonally, inserting successive characters,... |
| 1440 | do { |
| 1441 | if ($row >= 0 and $col < $ncol and !$marr[$row * $ncol + $col]) { |
| 1442 | $marr = $this->placeUtah($marr, $nrow, $ncol, $row, $col, $chr); |
| 1443 | ++$chr; |
| 1444 | } |
| 1445 | $row += 2; |
| 1446 | $col -= 2; |
| 1447 | } while ($row < $nrow and $col >= 0); |
| 1448 | $row += 3; |
| 1449 | ++$col; |
| 1450 | // ... until the entire array is scanned |
| 1451 | } while ($row < $nrow or $col < $ncol); |
| 1452 | // lastly, if the lower righthand corner is untouched, fill in fixed pattern |
| 1453 | if (!$marr[$nrow * $ncol - 1]) { |
| 1454 | $marr[$nrow * $ncol - 1] = 1; |
| 1455 | $marr[$nrow * $ncol - $ncol - 2] = 1; |
| 1456 | } |
| 1457 | return $marr; |
| 1458 | } |
| 1459 | } |
| 1460 | // end DataMatrix class |
| 1461 | //============================================================+ |
| 1462 | // END OF FILE |
| 1463 | //============================================================+ |
| 1464 | } |
| 1465 |