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311 lines
11 KiB
311 lines
11 KiB
<?php |
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/* |
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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 <fukuchi@megaui.net> |
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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($str)) |
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return false; |
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return ((ord($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($str)) |
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return false; |
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return (QRinput::lookAnTable(ord($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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$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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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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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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while($this->identifyMode($p) == QR_MODE_KANJI) { |
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$p += 2; |
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} |
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$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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return $run; |
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} |
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//---------------------------------------------------------------------- |
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public function eat8() |
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{ |
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$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 < $dataStrLen) { |
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$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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$dif = QRinput::estimateBitsMode8($p) // + 4 + l8 |
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+ QRinput::estimateBitsModeNum($q - $p) + 4 + $ln |
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- QRinput::estimateBitsMode8($q); // - 4 - l8 |
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if($dif < 0) { |
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break; |
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} else { |
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$p = $q; |
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} |
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} else if($mode == QR_MODE_AN) { |
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$q = $p; |
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while(self::isalnumat($this->dataStr, $q)) { |
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$q++; |
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} |
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$dif = QRinput::estimateBitsMode8($p) // + 4 + l8 |
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+ QRinput::estimateBitsModeAn($q - $p) + 4 + $la |
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- QRinput::estimateBitsMode8($q); // - 4 - l8 |
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if($dif < 0) { |
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break; |
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} else { |
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$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 = $p; |
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$ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr)); |
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if($ret < 0) |
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return -1; |
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return $run; |
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} |
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//---------------------------------------------------------------------- |
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public function splitString() |
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{ |
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while (strlen($this->dataStr) > 0) |
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{ |
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if($this->dataStr == '') |
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return 0; |
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$mode = $this->identifyMode(0); |
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switch ($mode) { |
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case QR_MODE_NUM: $length = $this->eatNum(); break; |
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case QR_MODE_AN: $length = $this->eatAn(); break; |
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case QR_MODE_KANJI: |
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if ($hint == QR_MODE_KANJI) |
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$length = $this->eatKanji(); |
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else $length = $this->eat8(); |
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break; |
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default: $length = $this->eat8(); break; |
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} |
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if($length == 0) return 0; |
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if($length < 0) return -1; |
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$this->dataStr = substr($this->dataStr, $length); |
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} |
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} |
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//---------------------------------------------------------------------- |
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public function toUpper() |
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{ |
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$stringLen = strlen($this->dataStr); |
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$p = 0; |
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while ($p<$stringLen) { |
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$mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint); |
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if($mode == QR_MODE_KANJI) { |
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$p += 2; |
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} else { |
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if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) { |
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$this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32); |
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} |
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$p++; |
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} |
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} |
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return $this->dataStr; |
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} |
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//---------------------------------------------------------------------- |
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public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true) |
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{ |
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if(is_null($string) || $string == '\0' || $string == '') { |
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throw new Exception('empty string!!!'); |
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} |
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$split = new QRsplit($string, $input, $modeHint); |
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if(!$casesensitive) |
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$split->toUpper(); |
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return $split->splitString(); |
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} |
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} |