mirror of
https://github.com/chillerlan/php-qrcode.git
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smiley
89 lines
2.0 KiB
PHP
89 lines
2.0 KiB
PHP
<?php
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/**
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*
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* @filesource AlphaNum.php
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* @created 25.11.2015
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* @package codemasher\QRCode
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* @author Smiley <smiley@chillerlan.net>
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* @copyright 2015 Smiley
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* @license MIT
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*/
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namespace codemasher\QRCode\Data;
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use codemasher\QRCode\BitBuffer;
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use codemasher\QRCode\Data;
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use codemasher\QRCode\Data\QRDataBase;
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use codemasher\QRCode\Data\QRDataInterface;
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use codemasher\QRCode\QRCodeException;
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use codemasher\QRCode\QRConst;
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/**
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* Class AlphaNum
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*/
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class AlphaNum extends QRDataBase implements QRDataInterface{
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/**
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* @var
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*/
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protected $mode = QRConst::MODE_ALPHA_NUM;
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/**
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* @param $buffer
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*/
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public function write(BitBuffer &$buffer){
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$data = $this->getData();
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$i = 0;
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$len = strlen($data);
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while($i + 1 < $len){
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$buffer->put($this->getCode(ord($data[$i])) * 45 + $this->getCode(ord($data[$i + 1])), 11);
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$i += 2;
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}
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if($i < $len){
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$buffer->put($this->getCode(ord($data[$i])), 6);
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}
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}
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/**
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* @return int
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*/
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public function getLength(){
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return strlen($this->getData());
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}
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/**
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* @param $c
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*
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* @return int
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* @throws \codemasher\QRCode\QRCodeException
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*/
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protected function getCode($c){
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if($this->util->toCharCode('0') <= $c && $c <= $this->util->toCharCode('9')){
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return $c - $this->util->toCharCode('0');
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}
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else if($this->util->toCharCode('A') <= $c && $c <= $this->util->toCharCode('Z')){
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return $c - $this->util->toCharCode('A') + 10;
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}
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else{
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switch($c){
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case $this->util->toCharCode(' '): return 36;
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case $this->util->toCharCode('$'): return 37;
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case $this->util->toCharCode('%'): return 38;
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case $this->util->toCharCode('*'): return 39;
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case $this->util->toCharCode('+'): return 40;
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case $this->util->toCharCode('-'): return 41;
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case $this->util->toCharCode('.'): return 42;
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case $this->util->toCharCode('/'): return 43;
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case $this->util->toCharCode(':'): return 44;
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default :
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throw new QRCodeException('illegal char: '.$c);
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}
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}
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}
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}
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