Typica/config/Scripts/barcode.js

BARS       = [212222,222122,222221,121223,121322,131222,122213,122312,132212,221213,221312,231212,112232,122132,122231,113222,123122,123221,223211,221132,221231,213212,223112,312131,311222,321122,321221,312212,322112,322211,212123,212321,232121,111323,131123,131321,112313,132113,132311,211313,231113,231311,112133,112331,132131,113123,113321,133121,313121,211331,231131,213113,213311,213131,311123,311321,331121,312113,312311,332111,314111,221411,431111,111224,111422,121124,121421,141122,141221,112214,112412,122114,122411,142112,142211,241211,221114,413111,241112,134111,111242,121142,121241,114212,124112,124211,411212,421112,421211,212141,214121,412121,111143,111341,131141,114113,114311,411113,411311,113141,114131,311141,411131,211412,211214,211232,23311120];
START_BASE = 38
STOP       = 106 //BARS[STOP]==23311120 (manually added a zero at the end)
 
var fromType128 = {
    A: function(charCode) {
        if (charCode>=0 && charCode<32)
            return charCode+64;
        if (charCode>=32 && charCode<96)
            return charCode-32;
        return charCode;
    },
    B: function(charCode) {
        if (charCode>=32 && charCode<128)
            return charCode-32;
        return charCode;
    },
    C: function(charCode) {
        return charCode;
    }
};
 
function code128(code, barcodeType) {
    if (arguments.length<2)
        barcodeType = code128Detect(code);
    if (barcodeType=='C' && code.length%2==1)
        code = '0'+code;
    var a = parseBarcode128(code,  barcodeType);
    return bar2html128(a.join('')) ;//+ '<label>' + code + '</label>';
}
 
 
function code128Detect(code) {
    if (/^[0-9]+$/.test(code)) return 'C';
    if (/[a-z]/.test(code)) return 'B';
    return 'A';
}
 
function parseBarcode128(barcode, barcodeType) {
    var bars = [];
    bars.add = function(nr) {
        var nrCode = BARS[nr];
        this.check = this.length==0 ? nr : this.check + nr*this.length;
        this.push( nrCode || format("UNDEFINED: %1->%2", nr, nrCode) );
    };
 
    bars.add(START_BASE + barcodeType.charCodeAt(0));
    for(var i=0; i<barcode.length; i++)
    {
        var code = barcodeType=='C' ? +barcode.substr(i++, 2) : barcode.charCodeAt(i);
        converted = fromType128[barcodeType](code);
        if (isNaN(converted) || converted<0 || converted>106)
            throw new Error(format("Unrecognized character (%1) at position %2 in code '%3'.", code, i, barcode));
        bars.add( converted );
    }
    bars.push(BARS[bars.check % 103], BARS[STOP]);
 
    return bars;
}
 
function format(c){
    var d=arguments;
    var e= new RegExp("%([1-"+(arguments.length-1)+"])","g");
    return(c+"").replace(e,function(a,b){return d[b]})
}
 
function bar2html128(s) {
    for(var pos=0, sb=[]; pos<s.length; pos+=2)
    {
        sb.push('<div class="bar' + s.charAt(pos) + ' space' + s.charAt(pos+1) + '"></div>');
    }
    return sb.join('');
}