74 lines
2.9 KiB
JavaScript
74 lines
2.9 KiB
JavaScript
(function() {
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if (!exports) var exports = window;
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var 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]
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, START_BASE = 38
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, STOP = 106 ;
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function code128(code, barcodeType) {
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if (arguments.length<2)
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barcodeType = code128Detect(code);
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if (barcodeType=='C' && code.length%2==1)
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code = '0'+code;
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var a = parseBarcode(code, barcodeType);
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return bar2html(a.join('')) + '<label>' + code + '</label>';
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}
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function bar2html(s) {
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for(var pos=0, sb=[]; pos<s.length; pos+=2) {
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sb.push('<div class="bar' + s.charAt(pos) + ' space' + s.charAt(pos+1) + '"></div>');
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}
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return sb.join('');
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}
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function code128Detect(code) {
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if (/^[0-9]+$/.test(code)) return 'C';
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if (/[a-z]/.test(code)) return 'B';
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return 'A';
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}
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function parseBarcode(barcode, barcodeType) {
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var bars = [];
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bars.add = function(nr) {
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var nrCode = BARS[nr];
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this.check = this.length==0 ? nr : this.check + nr*this.length;
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this.push( nrCode || ("UNDEFINED: "+nr+"->"+nrCode) );
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};
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bars.add(START_BASE + barcodeType.charCodeAt(0));
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for(var i=0; i<barcode.length; i++) {
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var code = barcodeType=='C' ? +barcode.substr(i++, 2) : barcode.charCodeAt(i);
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converted = fromType[barcodeType](code);
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if (isNaN(converted) || converted<0 || converted>106) throw new Error("Unrecognized character ("+code+") at position "+i+" in code '"+barcode+"'.");
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bars.add( converted );
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}
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bars.push(BARS[bars.check % 103], BARS[STOP]);
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return bars;
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}
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var fromType = {
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A: function(charCode) {
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if (charCode>=0 && charCode<32) return charCode+64;
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if (charCode>=32 && charCode<96) return charCode-32;
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return charCode;
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},
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B: function(charCode) {
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if (charCode>=32 && charCode<128) return charCode-32;
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return charCode;
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},
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C: function(charCode) {
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return charCode;
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}
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};
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//--| Export
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exports.code128 = code128;
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})();
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/*
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showDiv：代表需要显示的divID，
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textVlaue ： 代表需要生成的值，
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barcodeType：代表生成类型(A、B、C)三种类型
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*/
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function createBarcode(showDiv,textValue,barcodeType){
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var divElement = document.getElementById(showDiv);
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divElement.innerHTML = code128(textValue,barcodeType);
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}
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