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| author | Paolo T <tuscanhobbit@users.noreply.github.com> | 2014-02-25 16:33:40 +0100 |
|---|---|---|
| committer | Paolo T <tuscanhobbit@users.noreply.github.com> | 2014-02-25 16:33:40 +0100 |
| commit | 0a98f6b878ec89be7282621192d9daf80f125e6c (patch) | |
| tree | 718a4771ce1fb86931531226898b0b5d00e4a337 /library/phpqrcode/qrsplit.php | |
| parent | 34d30e4d7eb48bd801482531a0d775328bd43ab4 (diff) | |
| parent | b1021df485fb6129acda5bba616bac10aea75a45 (diff) | |
| download | volse-hubzilla-0a98f6b878ec89be7282621192d9daf80f125e6c.tar.gz volse-hubzilla-0a98f6b878ec89be7282621192d9daf80f125e6c.tar.bz2 volse-hubzilla-0a98f6b878ec89be7282621192d9daf80f125e6c.zip | |
Merge pull request #1 from friendica/master
Update this fork
Diffstat (limited to 'library/phpqrcode/qrsplit.php')
| -rw-r--r-- | library/phpqrcode/qrsplit.php | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/library/phpqrcode/qrsplit.php b/library/phpqrcode/qrsplit.php new file mode 100644 index 000000000..d75b82737 --- /dev/null +++ b/library/phpqrcode/qrsplit.php @@ -0,0 +1,311 @@ +<?php
+/*
+ * PHP QR Code encoder
+ *
+ * Input splitting classes
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
+ *
+ * The following data / specifications are taken from
+ * "Two dimensional symbol -- QR-code -- Basic Specification" (JIS X0510:2004)
+ * or
+ * "Automatic identification and data capture techniques --
+ * QR Code 2005 bar code symbology specification" (ISO/IEC 18004:2006)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+ class QRsplit {
+
+ public $dataStr = '';
+ public $input;
+ public $modeHint;
+
+ //----------------------------------------------------------------------
+ public function __construct($dataStr, $input, $modeHint)
+ {
+ $this->dataStr = $dataStr;
+ $this->input = $input;
+ $this->modeHint = $modeHint;
+ }
+
+ //----------------------------------------------------------------------
+ public static function isdigitat($str, $pos)
+ {
+ if ($pos >= strlen($str))
+ return false;
+
+ return ((ord($str[$pos]) >= ord('0'))&&(ord($str[$pos]) <= ord('9')));
+ }
+
+ //----------------------------------------------------------------------
+ public static function isalnumat($str, $pos)
+ {
+ if ($pos >= strlen($str))
+ return false;
+
+ return (QRinput::lookAnTable(ord($str[$pos])) >= 0);
+ }
+
+ //----------------------------------------------------------------------
+ public function identifyMode($pos)
+ {
+ if ($pos >= strlen($this->dataStr))
+ return QR_MODE_NUL;
+
+ $c = $this->dataStr[$pos];
+
+ if(self::isdigitat($this->dataStr, $pos)) {
+ return QR_MODE_NUM;
+ } else if(self::isalnumat($this->dataStr, $pos)) {
+ return QR_MODE_AN;
+ } else if($this->modeHint == QR_MODE_KANJI) {
+
+ if ($pos+1 < strlen($this->dataStr))
+ {
+ $d = $this->dataStr[$pos+1];
+ $word = (ord($c) << 8) | ord($d);
+ if(($word >= 0x8140 && $word <= 0x9ffc) || ($word >= 0xe040 && $word <= 0xebbf)) {
+ return QR_MODE_KANJI;
+ }
+ }
+ }
+
+ return QR_MODE_8;
+ }
+
+ //----------------------------------------------------------------------
+ public function eatNum()
+ {
+ $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+ $p = 0;
+ while(self::isdigitat($this->dataStr, $p)) {
+ $p++;
+ }
+
+ $run = $p;
+ $mode = $this->identifyMode($p);
+
+ if($mode == QR_MODE_8) {
+ $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+ + QRinput::estimateBitsMode8(1) // + 4 + l8
+ - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+ if($dif > 0) {
+ return $this->eat8();
+ }
+ }
+ if($mode == QR_MODE_AN) {
+ $dif = QRinput::estimateBitsModeNum($run) + 4 + $ln
+ + QRinput::estimateBitsModeAn(1) // + 4 + la
+ - QRinput::estimateBitsModeAn($run + 1);// - 4 - la
+ if($dif > 0) {
+ return $this->eatAn();
+ }
+ }
+
+ $ret = $this->input->append(QR_MODE_NUM, $run, str_split($this->dataStr));
+ if($ret < 0)
+ return -1;
+
+ return $run;
+ }
+
+ //----------------------------------------------------------------------
+ public function eatAn()
+ {
+ $la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
+ $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+ $p = 0;
+
+ while(self::isalnumat($this->dataStr, $p)) {
+ if(self::isdigitat($this->dataStr, $p)) {
+ $q = $p;
+ while(self::isdigitat($this->dataStr, $q)) {
+ $q++;
+ }
+
+ $dif = QRinput::estimateBitsModeAn($p) // + 4 + la
+ + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+ - QRinput::estimateBitsModeAn($q); // - 4 - la
+
+ if($dif < 0) {
+ break;
+ } else {
+ $p = $q;
+ }
+ } else {
+ $p++;
+ }
+ }
+
+ $run = $p;
+
+ if(!self::isalnumat($this->dataStr, $p)) {
+ $dif = QRinput::estimateBitsModeAn($run) + 4 + $la
+ + QRinput::estimateBitsMode8(1) // + 4 + l8
+ - QRinput::estimateBitsMode8($run + 1); // - 4 - l8
+ if($dif > 0) {
+ return $this->eat8();
+ }
+ }
+
+ $ret = $this->input->append(QR_MODE_AN, $run, str_split($this->dataStr));
+ if($ret < 0)
+ return -1;
+
+ return $run;
+ }
+
+ //----------------------------------------------------------------------
+ public function eatKanji()
+ {
+ $p = 0;
+
+ while($this->identifyMode($p) == QR_MODE_KANJI) {
+ $p += 2;
+ }
+
+ $ret = $this->input->append(QR_MODE_KANJI, $p, str_split($this->dataStr));
+ if($ret < 0)
+ return -1;
+
+ return $run;
+ }
+
+ //----------------------------------------------------------------------
+ public function eat8()
+ {
+ $la = QRspec::lengthIndicator(QR_MODE_AN, $this->input->getVersion());
+ $ln = QRspec::lengthIndicator(QR_MODE_NUM, $this->input->getVersion());
+
+ $p = 1;
+ $dataStrLen = strlen($this->dataStr);
+
+ while($p < $dataStrLen) {
+
+ $mode = $this->identifyMode($p);
+ if($mode == QR_MODE_KANJI) {
+ break;
+ }
+ if($mode == QR_MODE_NUM) {
+ $q = $p;
+ while(self::isdigitat($this->dataStr, $q)) {
+ $q++;
+ }
+ $dif = QRinput::estimateBitsMode8($p) // + 4 + l8
+ + QRinput::estimateBitsModeNum($q - $p) + 4 + $ln
+ - QRinput::estimateBitsMode8($q); // - 4 - l8
+ if($dif < 0) {
+ break;
+ } else {
+ $p = $q;
+ }
+ } else if($mode == QR_MODE_AN) {
+ $q = $p;
+ while(self::isalnumat($this->dataStr, $q)) {
+ $q++;
+ }
+ $dif = QRinput::estimateBitsMode8($p) // + 4 + l8
+ + QRinput::estimateBitsModeAn($q - $p) + 4 + $la
+ - QRinput::estimateBitsMode8($q); // - 4 - l8
+ if($dif < 0) {
+ break;
+ } else {
+ $p = $q;
+ }
+ } else {
+ $p++;
+ }
+ }
+
+ $run = $p;
+ $ret = $this->input->append(QR_MODE_8, $run, str_split($this->dataStr));
+
+ if($ret < 0)
+ return -1;
+
+ return $run;
+ }
+
+ //----------------------------------------------------------------------
+ public function splitString()
+ {
+ while (strlen($this->dataStr) > 0)
+ {
+ if($this->dataStr == '')
+ return 0;
+
+ $mode = $this->identifyMode(0);
+
+ switch ($mode) {
+ case QR_MODE_NUM: $length = $this->eatNum(); break;
+ case QR_MODE_AN: $length = $this->eatAn(); break;
+ case QR_MODE_KANJI:
+ if ($hint == QR_MODE_KANJI)
+ $length = $this->eatKanji();
+ else $length = $this->eat8();
+ break;
+ default: $length = $this->eat8(); break;
+
+ }
+
+ if($length == 0) return 0;
+ if($length < 0) return -1;
+
+ $this->dataStr = substr($this->dataStr, $length);
+ }
+ }
+
+ //----------------------------------------------------------------------
+ public function toUpper()
+ {
+ $stringLen = strlen($this->dataStr);
+ $p = 0;
+
+ while ($p<$stringLen) {
+ $mode = self::identifyMode(substr($this->dataStr, $p), $this->modeHint);
+ if($mode == QR_MODE_KANJI) {
+ $p += 2;
+ } else {
+ if (ord($this->dataStr[$p]) >= ord('a') && ord($this->dataStr[$p]) <= ord('z')) {
+ $this->dataStr[$p] = chr(ord($this->dataStr[$p]) - 32);
+ }
+ $p++;
+ }
+ }
+
+ return $this->dataStr;
+ }
+
+ //----------------------------------------------------------------------
+ public static function splitStringToQRinput($string, QRinput $input, $modeHint, $casesensitive = true)
+ {
+ if(is_null($string) || $string == '\0' || $string == '') {
+ throw new Exception('empty string!!!');
+ }
+
+ $split = new QRsplit($string, $input, $modeHint);
+
+ if(!$casesensitive)
+ $split->toUpper();
+
+ return $split->splitString();
+ }
+ }
\ No newline at end of file |