下面是我用来创建 Code128 条形码的内容。我试图弄清楚如何在 $code 中进行某种正则表达式搜索以找到类似“^009”的内容并将其替换为“10000110100”而不破坏其余的编码。我的目标是能够在条形码中使用 Code128 控制字符。
我将不再使用控制字符编码：http ://en.wikipedia.org/wiki/Code_128
class Barcode128 {
static private $encoding = array(
'11011001100', '11001101100', '11001100110', '10010011000',
'10010001100', '10001001100', '10011001000', '10011000100',
'10001100100', '11001001000', '11001000100', '11000100100',
'10110011100', '10011011100', '10011001110', '10111001100',
'10011101100', '10011100110', '11001110010', '11001011100',
'11001001110', '11011100100', '11001110100', '11101101110',
'11101001100', '11100101100', '11100100110', '11101100100',
'11100110100', '11100110010', '11011011000', '11011000110',
'11000110110', '10100011000', '10001011000', '10001000110',
'10110001000', '10001101000', '10001100010', '11010001000',
'11000101000', '11000100010', '10110111000', '10110001110',
'10001101110', '10111011000', '10111000110', '10001110110',
'11101110110', '11010001110', '11000101110', '11011101000',
'11011100010', '11011101110', '11101011000', '11101000110',
'11100010110', '11101101000', '11101100010', '11100011010',
'11101111010', '11001000010', '11110001010', '10100110000',
'10100001100', '10010110000', '10010000110', '10000101100',
'10000100110', '10110010000', '10110000100', '10011010000',
'10011000010', '10000110100', '10000110010', '11000010010',
'11001010000', '11110111010', '11000010100', '10001111010',
'10100111100', '10010111100', '10010011110', '10111100100',
'10011110100', '10011110010', '11110100100', '11110010100',
'11110010010', '11011011110', '11011110110', '11110110110',
'10101111000', '10100011110', '10001011110', '10111101000',
'10111100010', '11110101000', '11110100010', '10111011110',
'10111101110', '11101011110', '11110101110', '11010000100',
'11010010000', '11010011100', '11000111010');
static public function getDigit($code){
$tableB = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~";
$result = "";
$sum = 0;
$isum = 0;
$i = 0;
$j = 0;
$value = 0;
// check each characters
$len = strlen($code);
for($i=0; $i<$len; $i++){
if (strpos($tableB, $code[$i]) === false) return("");
}
// check firsts characters : start with C table only if enought numeric
$tableCActivated = $len> 1;
$c = '';
for($i=0; $i<3 && $i<$len; $i++){
$tableCActivated &= preg_match('`[0-9]`', $code[$i]);
}
$sum = $tableCActivated ? 105 : 104;
// start : [105] : C table or [104] : B table
$result = self::$encoding[ $sum ];
$i = 0;
while( $i < $len ){
if (! $tableCActivated){
$j = 0;
// check next character to activate C table if interresting
while ( ($i + $j < $len) && preg_match('`[0-9]`', $code[$i+$j]) ) $j++;
// 6 min everywhere or 4 mini at the end
$tableCActivated = ($j > 5) || (($i + $j - 1 == $len) && ($j > 3));
if ( $tableCActivated ){
$result .= self::$encoding[ 99 ]; // C table
$sum += ++$isum * 99;
}
// 2 min for table C so need table B
} else if ( ($i == $len - 1) || (preg_match('`[^0-9]`', $code[$i])) || (preg_match('`[^0-9]`', $code[$i+1])) ) { //todo : verifier le JS : len - 1!!! XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
$tableCActivated = false;
$result .= self::$encoding[ 100 ]; // B table
$sum += ++$isum * 100;
}
if ( $tableCActivated ) {
$value = intval(substr($code, $i, 2)); // Add two characters (numeric)
$i += 2;
} else {
$value = strpos($tableB, $code[$i]); // Add one character
$i++;
}
$result .= self::$encoding[ $value ];
$sum += ++$isum * $value;
}
// Add CRC
$result .= self::$encoding[ $sum % 103 ];
// Stop
$result .= self::$encoding[ 106 ];
// Termination bar
$result .= '11';
return($result);
}
}
谁能帮我这个？我该怎么做？