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<?php
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/*
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3
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* PHP QR Code encoder
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*
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* Input splitting classes
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*
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* Based on libqrencode C library distributed under LGPL 2.1
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* Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <[email protected]>
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*
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* PHP QR Code is distributed under LGPL 3
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* Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
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*
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* The following data / specifications are taken from
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* "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
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* or
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* "Automatic identification and data capture techniques --
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* QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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class QRsplit {
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public $dataStr = '';
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public $input;
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public $modeHint;
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//----------------------------------------------------------------------
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public function __construct($dataStr, $input, $modeHint)
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{
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$this->dataStr = $dataStr;
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$this->input = $input;
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$this->modeHint = $modeHint;
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}
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//----------------------------------------------------------------------
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public static function isdigitat($str, $pos)
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{
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if ($pos >= strlen($str)) { |
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return false; |
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} |
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return ((ord($str[$pos]) >= ord('0')) && (ord($str[$pos]) <= ord('9')));
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}
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//----------------------------------------------------------------------
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public static function isalnumat($str, $pos)
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{
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if ($pos >= strlen($str)) { |
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return false; |
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} |
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return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
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}
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//----------------------------------------------------------------------
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public function identifyMode($pos)
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{
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if ($pos >= strlen($this->dataStr)) { |
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return QR_MODE_NUL; |
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} |
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$c = $this->dataStr[$pos];
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if (self::isdigitat($this->dataStr, $pos)) {
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return QR_MODE_NUM;
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} else if (self::isalnumat($this->dataStr, $pos)) {
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return QR_MODE_AN;
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} else if ($this->modeHint == QR_MODE_KANJI) {
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if ($pos + 1 < strlen($this->dataStr))
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{
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$d = $this->dataStr[$pos + 1];
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$word = (ord($c) << 8) | ord($d);
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if (($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
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return QR_MODE_KANJI;
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}
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}
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}
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return QR_MODE_8;
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}
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//----------------------------------------------------------------------
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public function eatNum()
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{
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$ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
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$p = 0;
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while (self::isdigitat($this->dataStr, $p)) {
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$p++;
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}
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$run = $p;
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$mode = $this->identifyMode($p);
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if ($mode == QR_MODE_8) {
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$dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
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+ QRinput::estimateBitsMode8(1) // + 4 + l8
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- QRinput::estimateBitsMode8($run + 1); // - 4 - l8
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if ($dif > 0) {
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return $this->eat8();
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}
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}
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if ($mode == QR_MODE_AN) {
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$dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
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+ QRinput::estimateBitsModeAn(1) // + 4 + la
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- QRinput::estimateBitsModeAn($run + 1); // - 4 - la
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if ($dif > 0) {
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return $this->eatAn();
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}
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}
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$ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
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if ($ret < 0) { |
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return -1; |
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} |
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return $run;
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}
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//----------------------------------------------------------------------
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public function eatAn()
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{
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$la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
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$ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
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$p = 0;
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while (self::isalnumat($this->dataStr, $p)) {
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if (self::isdigitat($this->dataStr, $p)) {
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$q = $p;
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while (self::isdigitat($this->dataStr, $q)) {
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$q++;
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}
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$dif = QRinput::estimateBitsModeAn($p) // + 4 + la
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+ QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
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- QRinput::estimateBitsModeAn($q); // - 4 - la
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if ($dif < 0) {
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break;
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} else {
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$p = $q;
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}
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} else {
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$p++;
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}
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}
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$run = $p;
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if (!self::isalnumat($this->dataStr, $p)) {
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$dif = QRinput::estimateBitsModeAn($run) + 4 + $la
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+ QRinput::estimateBitsMode8(1) // + 4 + l8
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- QRinput::estimateBitsMode8($run + 1); // - 4 - l8
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if ($dif > 0) {
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return $this->eat8();
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}
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}
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$ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
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if ($ret < 0) { |
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return -1; |
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} |
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return $run;
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}
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//----------------------------------------------------------------------
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public function eatKanji()
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{
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$p = 0;
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186
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while ($this->identifyMode($p) == QR_MODE_KANJI) {
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$p += 2;
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}
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190
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$ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
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if ($ret < 0) { |
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return -1; |
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} |
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return $ret;
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}
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//----------------------------------------------------------------------
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public function eat8()
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{
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$la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
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$ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
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$p = 1;
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$dataStrLen = strlen($this->dataStr);
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while ($p < $dataStrLen) {
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209
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$mode = $this->identifyMode($p);
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if ($mode == QR_MODE_KANJI) {
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break;
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}
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if ($mode == QR_MODE_NUM) {
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$q = $p;
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while (self::isdigitat($this->dataStr, $q)) {
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$q++;
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}
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218
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$dif = QRinput::estimateBitsMode8($p) // + 4 + l8
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+ QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
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220
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- QRinput::estimateBitsMode8($q); // - 4 - l8
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if ($dif < 0) {
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break;
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} else {
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224
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$p = $q;
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}
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226
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} else if ($mode == QR_MODE_AN) {
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$q = $p;
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228
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while (self::isalnumat($this->dataStr, $q)) {
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$q++;
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230
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}
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231
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$dif = QRinput::estimateBitsMode8($p) // + 4 + l8
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232
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+ QRinput::estimateBitsModeAn($q - $p) + 4 + $la
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- QRinput::estimateBitsMode8($q); // - 4 - l8
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234
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if ($dif < 0) {
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235
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break;
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236
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} else {
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237
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$p = $q;
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238
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}
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239
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} else {
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240
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$p++;
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241
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}
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242
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}
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243
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244
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$run = $p;
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245
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$ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
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246
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247
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if ($ret < 0) { |
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248
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return -1; |
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249
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} |
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250
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251
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return $run;
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252
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}
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253
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254
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//----------------------------------------------------------------------
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255
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public function splitString()
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256
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{
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257
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while (strlen($this->dataStr) > 0)
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258
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{
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259
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if ($this->dataStr == '') { |
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260
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return 0; |
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261
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} |
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262
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263
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$mode = $this->identifyMode(0);
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264
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265
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switch ($mode) {
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266
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case QR_MODE_NUM: $length = $this->eatNum(); break;
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267
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case QR_MODE_AN: $length = $this->eatAn(); break;
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268
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case QR_MODE_KANJI:
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269
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if ($this->modeHint == QR_MODE_KANJI) { |
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270
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$length = $this->eatKanji(); |
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271
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} else { |
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272
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$length = $this->eat8(); |
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273
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} |
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274
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break;
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275
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default: $length = $this->eat8(); break;
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276
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277
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}
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278
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279
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if ($length == 0) { |
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280
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return 0; |
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281
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} |
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282
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if ($length < 0) { |
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283
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return -1; |
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284
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} |
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285
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286
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$this->dataStr = substr($this->dataStr, $length);
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287
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}
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288
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}
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289
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290
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//----------------------------------------------------------------------
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291
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public function toUpper()
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292
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{
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293
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$stringLen = strlen($this->dataStr);
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294
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$p = 0;
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295
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296
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while ($p < $stringLen) {
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297
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$mode = self::identifyMode(substr($this->dataStr, $p));
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298
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if ($mode == QR_MODE_KANJI) {
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299
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$p += 2;
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300
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} else {
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301
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if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
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302
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$this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
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303
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}
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304
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$p++;
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305
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}
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306
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}
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307
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308
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return $this->dataStr;
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309
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|
}
|
|
310
|
|
|
|
|
311
|
|
|
//----------------------------------------------------------------------
|
|
312
|
|
|
public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true)
|
|
313
|
|
|
{
|
|
314
|
|
|
if (is_null($string) || $string == '\0' || $string == '') {
|
|
315
|
|
|
throw new Exception('empty string!!!');
|
|
316
|
|
|
}
|
|
317
|
|
|
|
|
318
|
|
|
$split = new QRsplit($string, $input, $modeHint);
|
|
319
|
|
|
|
|
320
|
|
|
if (!$casesensitive) { |
|
321
|
|
|
$split->toUpper(); |
|
322
|
|
|
} |
|
323
|
|
|
|
|
324
|
|
|
return $split->splitString();
|
|
325
|
|
|
}
|
|
326
|
|
|
} |
|
327
|
|
|
|
codysnider /
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Rasmus Lerdorf
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