现在，二维码使用的地方越来越广，各种语言都有生成二维码的代码，这里介绍一下js生成二维码的代码
代码如下：
<input id="text" type="text" value="http://www.aspbc.com" style="width:80%" /><br />
<div id="qrcode"></div>
<script src='qrcode.min.js'></script>
<script>
var qrcode = new QRCode('qrcode');
function makeCode() {
var elText = document.getElementById('text');
if (!elText.value) {
alert('Input a text');
elText.focus();
return;
}
qrcode.makeCode(elText.value);
}
makeCode();
$('#text').on('blur', function () {
makeCode();
}).on('keydown', function (e) {
if (e.keyCode == 13) {
makeCode();
}
});
</script>
将以上代码保存为html，即可浏览，二维码的内容就是文本框中的内容。
qrcode.min.js的内容如下：
var QRCode;
!function() {
function a(a) {
this.mode = c.MODE_8BIT_BYTE,
this.data = a,
this.parsedData = [];
for (var b = [], d = 0, e = this.data.length; e > d; d++) {
var f = this.data.charCodeAt(d);
f > 65536 ? (b[0] = 240 | (1835008 & f) >>> 18, b[1] = 128 | (258048 & f) >>> 12, b[2] = 128 | (4032 & f) >>> 6, b[3] = 128 | 63 & f) : f > 2048 ? (b[0] = 224 | (61440 & f) >>> 12, b[1] = 128 | (4032 & f) >>> 6, b[2] = 128 | 63 & f) : f > 128 ? (b[0] = 192 | (1984 & f) >>> 6, b[1] = 128 | 63 & f) : b[0] = f,
this.parsedData = this.parsedData.concat(b)
}
this.parsedData.length != this.data.length && (this.parsedData.unshift(191), this.parsedData.unshift(187), this.parsedData.unshift(239))
}
function b(a, b) {
this.typeNumber = a,
this.errorCorrectLevel = b,
this.modules = null,
this.moduleCount = 0,
this.dataCache = null,
this.dataList = []
}
function i(a, b) {
if (void 0 == a.length) throw new Error(a.length + "/" + b);
for (var c = 0; c < a.length && 0 == a[c];) c++;
this.num = new Array(a.length - c + b);
for (var d = 0; d < a.length - c; d++) this.num[d] = a[d + c]
}
function j(a, b) {
this.totalCount = a,
this.dataCount = b
}
function k() {
this.buffer = [],
this.length = 0
}
function m() {
return "undefined" != typeof CanvasRenderingContext2D
}
function n() {
var a = !1,
b = navigator.userAgent;
return /android/i.test(b) && (a = !0, aMat = b.toString().match(/android ([0-9]\.[0-9])/i), aMat && aMat[1] && (a = parseFloat(aMat[1]))),
a
}
function r(a, b) {
for (var c = 1,
e = s(a), f = 0, g = l.length; g >= f; f++) {
var h = 0;
switch (b) {
case d.L:
h = l[f][0];
break;
case d.M:
h = l[f][1];
break;
case d.Q:
h = l[f][2];
break;
case d.H:
h = l[f][3]
}
if (h >= e) break;
c++
}
if (c > l.length) throw new Error("Too long data");
return c
}
function s(a) {
var b = encodeURI(a).toString().replace(/\%[0-9a-fA-F]{2}/g, "a");
return b.length + (b.length != a ? 3 : 0)
}
a.prototype = {
getLength: function() {
return this.parsedData.length
},
write: function(a) {
for (var b = 0,
c = this.parsedData.length; c > b; b++) a.put(this.parsedData[b], 8)
}
},
b.prototype = {
addData: function(b) {
var c = new a(b);
this.dataList.push(c),
this.dataCache = null
},
isDark: function(a, b) {
if (0 > a || this.moduleCount <= a || 0 > b || this.moduleCount <= b) throw new Error(a + "," + b);
return this.modules[a][b]
},
getModuleCount: function() {
return this.moduleCount
},
make: function() {
this.makeImpl(!1, this.getBestMaskPattern())
},
makeImpl: function(a, c) {
this.moduleCount = 4 * this.typeNumber + 17,
this.modules = new Array(this.moduleCount);
for (var d = 0; d < this.moduleCount; d++) {
this.modules[d] = new Array(this.moduleCount);
for (var e = 0; e < this.moduleCount; e++) this.modules[d][e] = null
}
this.setupPositionProbePattern(0, 0),
this.setupPositionProbePattern(this.moduleCount - 7, 0),
this.setupPositionProbePattern(0, this.moduleCount - 7),
this.setupPositionAdjustPattern(),
this.setupTimingPattern(),
this.setupTypeInfo(a, c),
this.typeNumber >= 7 && this.setupTypeNumber(a),
null == this.dataCache && (this.dataCache = b.createData(this.typeNumber, this.errorCorrectLevel, this.dataList)),
this.mapData(this.dataCache, c)
},
setupPositionProbePattern: function(a, b) {
for (var c = -1; 7 >= c; c++) if (! ( - 1 >= a + c || this.moduleCount <= a + c)) for (var d = -1; 7 >= d; d++) - 1 >= b + d || this.moduleCount <= b + d || (this.modules[a + c][b + d] = c >= 0 && 6 >= c && (0 == d || 6 == d) || d >= 0 && 6 >= d && (0 == c || 6 == c) || c >= 2 && 4 >= c && d >= 2 && 4 >= d ? !0 : !1)
},
getBestMaskPattern: function() {
for (var a = 0,
b = 0,
c = 0; 8 > c; c++) {
this.makeImpl(!0, c);
var d = f.getLostPoint(this); (0 == c || a > d) && (a = d, b = c)
}
return b
},
createMovieClip: function(a, b, c) {
var d = a.createEmptyMovieClip(b, c),
e = 1;
this.make();
for (var f = 0; f < this.modules.length; f++) for (var g = f * e,
h = 0; h < this.modules[f].length; h++) {
var i = h * e,
j = this.modules[f][h];
j && (d.beginFill(0, 100), d.moveTo(i, g), d.lineTo(i + e, g), d.lineTo(i + e, g + e), d.lineTo(i, g + e), d.endFill())
}
return d
},
setupTimingPattern: function() {
for (var a = 8; a < this.moduleCount - 8; a++) null == this.modules[a][6] && (this.modules[a][6] = 0 == a % 2);
for (var b = 8; b < this.moduleCount - 8; b++) null == this.modules[6][b] && (this.modules[6][b] = 0 == b % 2)
},
setupPositionAdjustPattern: function() {
for (var a = f.getPatternPosition(this.typeNumber), b = 0; b < a.length; b++) for (var c = 0; c < a.length; c++) {
var d = a[b],
e = a[c];
if (null == this.modules[d][e]) for (var g = -2; 2 >= g; g++) for (var h = -2; 2 >= h; h++) this.modules[d + g][e + h] = -2 == g || 2 == g || -2 == h || 2 == h || 0 == g && 0 == h ? !0 : !1
}
},
setupTypeNumber: function(a) {
for (var b = f.getBCHTypeNumber(this.typeNumber), c = 0; 18 > c; c++) {
var d = !a && 1 == (1 & b >> c);
this.modules[Math.floor(c / 3)][c % 3 + this.moduleCount - 8 - 3] = d
}
for (var c = 0; 18 > c; c++) {
var d = !a && 1 == (1 & b >> c);
this.modules[c % 3 + this.moduleCount - 8 - 3][Math.floor(c / 3)] = d
}
},
setupTypeInfo: function(a, b) {
for (var c = this.errorCorrectLevel << 3 | b,
d = f.getBCHTypeInfo(c), e = 0; 15 > e; e++) {
var g = !a && 1 == (1 & d >> e);
6 > e ? this.modules[e][8] = g: 8 > e ? this.modules[e + 1][8] = g: this.modules[this.moduleCount - 15 + e][8] = g
}
for (var e = 0; 15 > e; e++) {
var g = !a && 1 == (1 & d >> e);
8 > e ? this.modules[8][this.moduleCount - e - 1] = g: 9 > e ? this.modules[8][15 - e - 1 + 1] = g: this.modules[8][15 - e - 1] = g
}
this.modules[this.moduleCount - 8][8] = !a
},
mapData: function(a, b) {
for (var c = -1,
d = this.moduleCount - 1,
e = 7,
g = 0,
h = this.moduleCount - 1; h > 0; h -= 2) for (6 == h && h--;;) {
for (var i = 0; 2 > i; i++) if (null == this.modules[d][h - i]) {
var j = !1;
g < a.length && (j = 1 == (1 & a[g] >>> e));
var k = f.getMask(b, d, h - i);
k && (j = !j),
this.modules[d][h - i] = j,
e--,
-1 == e && (g++, e = 7)
}
if (d += c, 0 > d || this.moduleCount <= d) {
d -= c,
c = -c;
break
}
}
}
},
b.PAD0 = 236,
b.PAD1 = 17,
b.createData = function(a, c, d) {
for (var e = j.getRSBlocks(a, c), g = new k, h = 0; h < d.length; h++) {
var i = d[h];
g.put(i.mode, 4),
g.put(i.getLength(), f.getLengthInBits(i.mode, a)),
i.write(g)
}
for (var l = 0,
h = 0; h < e.length; h++) l += e[h].dataCount;
if (g.getLengthInBits() > 8 * l) throw new Error("code length overflow. (" + g.getLengthInBits() + ">" + 8 * l + ")");
for (g.getLengthInBits() + 4 <= 8 * l && g.put(0, 4); 0 != g.getLengthInBits() % 8;) g.putBit(!1);
for (;;) {
if (g.getLengthInBits() >= 8 * l) break;
if (g.put(b.PAD0, 8), g.getLengthInBits() >= 8 * l) break;
g.put(b.PAD1, 8)
}
return b.createBytes(g, e)
},
b.createBytes = function(a, b) {
for (var c = 0,
d = 0,
e = 0,
g = new Array(b.length), h = new Array(b.length), j = 0; j < b.length; j++) {
var k = b[j].dataCount,
l = b[j].totalCount - k;
d = Math.max(d, k),
e = Math.max(e, l),
g[j] = new Array(k);
for (var m = 0; m < g[j].length; m++) g[j][m] = 255 & a.buffer[m + c];
c += k;
var n = f.getErrorCorrectPolynomial(l),
o = new i(g[j], n.getLength() - 1),
p = o.mod(n);
h[j] = new Array(n.getLength() - 1);
for (var m = 0; m < h[j].length; m++) {
var q = m + p.getLength() - h[j].length;
h[j][m] = q >= 0 ? p.get(q) : 0
}
}
for (var r = 0,
m = 0; m < b.length; m++) r += b[m].totalCount;
for (var s = new Array(r), t = 0, m = 0; d > m; m++) for (var j = 0; j < b.length; j++) m < g[j].length && (s[t++] = g[j][m]);
for (var m = 0; e > m; m++) for (var j = 0; j < b.length; j++) m < h[j].length && (s[t++] = h[j][m]);
return s
};
for (var c = {
MODE_NUMBER: 1,
MODE_ALPHA_NUM: 2,
MODE_8BIT_BYTE: 4,
MODE_KANJI: 8
},
d = {
L: 1,
M: 0,
Q: 3,
H: 2
},
e = {
PATTERN000: 0,
PATTERN001: 1,
PATTERN010: 2,
PATTERN011: 3,
PATTERN100: 4,
PATTERN101: 5,
PATTERN110: 6,
PATTERN111: 7
},
f = {
PATTERN_POSITION_TABLE: [[], [6, 18], [6, 22], [6, 26], [6, 30], [6, 34], [6, 22, 38], [6, 24, 42], [6, 26, 46], [6, 28, 50], [6, 30, 54], [6, 32, 58], [6, 34, 62], [6, 26, 46, 66], [6, 26, 48, 70], [6, 26, 50, 74], [6, 30, 54, 78], [6, 30, 56, 82], [6, 30, 58, 86], [6, 34, 62, 90], [6, 28, 50, 72, 94], [6, 26, 50, 74, 98], [6, 30, 54, 78, 102], [6, 28, 54, 80, 106], [6, 32, 58, 84, 110], [6, 30, 58, 86, 114], [6, 34, 62, 90, 118], [6, 26, 50, 74, 98, 122], [6, 30, 54, 78, 102, 126], [6, 26, 52, 78, 104, 130], [6, 30, 56, 82, 108, 134], [6, 34, 60, 86, 112, 138], [6, 30, 58, 86, 114, 142], [6, 34, 62, 90, 118, 146], [6, 30, 54, 78, 102, 126, 150], [6, 24, 50, 76, 102, 128, 154], [6, 28, 54, 80, 106, 132, 158], [6, 32, 58, 84, 110, 136, 162], [6, 26, 54, 82, 110, 138, 166], [6, 30, 58, 86, 114, 142, 170]],
G15: 1335,
G18: 7973,
G15_MASK: 21522,
getBCHTypeInfo: function(a) {
for (var b = a << 10; f.getBCHDigit(b) - f.getBCHDigit(f.G15) >= 0;) b ^= f.G15 << f.getBCHDigit(b) - f.getBCHDigit(f.G15);
return (a << 10 | b) ^ f.G15_MASK
},
getBCHTypeNumber: function(a) {
for (var b = a << 12; f.getBCHDigit(b) - f.getBCHDigit(f.G18) >= 0;) b ^= f.G18 << f.getBCHDigit(b) - f.getBCHDigit(f.G18);
return a << 12 | b
},
getBCHDigit: function(a) {
for (var b = 0; 0 != a;) b++,
a >>>= 1;
return b
},
getPatternPosition: function(a) {
return f.PATTERN_POSITION_TABLE[a - 1]
},
getMask: function(a, b, c) {
switch (a) {
case e.PATTERN000:
return 0 == (b + c) % 2;
case e.PATTERN001:
return 0 == b % 2;
case e.PATTERN010:
return 0 == c % 3;
case e.PATTERN011:
return 0 == (b + c) % 3;
case e.PATTERN100:
return 0 == (Math.floor(b / 2) + Math.floor(c / 3)) % 2;
case e.PATTERN101:
return 0 == b * c % 2 + b * c % 3;
case e.PATTERN110:
return 0 == (b * c % 2 + b * c % 3) % 2;
case e.PATTERN111:
return 0 == (b * c % 3 + (b + c) % 2) % 2;
default:
throw new Error("bad maskPattern:" + a)
}
},
getErrorCorrectPolynomial: function(a) {
for (var b = new i([1], 0), c = 0; a > c; c++) b = b.multiply(new i([1, g.gexp(c)], 0));
return b
},
getLengthInBits: function(a, b) {
if (b >= 1 && 10 > b) switch (a) {
case c.MODE_NUMBER:
return 10;
case c.MODE_ALPHA_NUM:
return 9;
case c.MODE_8BIT_BYTE:
return 8;
case c.MODE_KANJI:
return 8;
default:
throw new Error("mode:" + a)
} else if (27 > b) switch (a) {
case c.MODE_NUMBER:
return 12;
case c.MODE_ALPHA_NUM:
return 11;
case c.MODE_8BIT_BYTE:
return 16;
case c.MODE_KANJI:
return 10;
default:
throw new Error("mode:" + a)
} else {
if (! (41 > b)) throw new Error("type:" + b);
switch (a) {
case c.MODE_NUMBER:
return 14;
case c.MODE_ALPHA_NUM:
return 13;
case c.MODE_8BIT_BYTE:
return 16;
case c.MODE_KANJI:
return 12;
default:
throw new Error("mode:" + a)
}
}
},
getLostPoint: function(a) {
for (var b = a.getModuleCount(), c = 0, d = 0; b > d; d++) for (var e = 0; b > e; e++) {
for (var f = 0,
g = a.isDark(d, e), h = -1; 1 >= h; h++) if (! (0 > d + h || d + h >= b)) for (var i = -1; 1 >= i; i++) 0 > e + i || e + i >= b || (0 != h || 0 != i) && g == a.isDark(d + h, e + i) && f++;
f > 5 && (c += 3 + f - 5)
}
for (var d = 0; b - 1 > d; d++) for (var e = 0; b - 1 > e; e++) {
var j = 0;
a.isDark(d, e) && j++,
a.isDark(d + 1, e) && j++,
a.isDark(d, e + 1) && j++,
a.isDark(d + 1, e + 1) && j++,
(0 == j || 4 == j) && (c += 3)
}
for (var d = 0; b > d; d++) for (var e = 0; b - 6 > e; e++) a.isDark(d, e) && !a.isDark(d, e + 1) && a.isDark(d, e + 2) && a.isDark(d, e + 3) && a.isDark(d, e + 4) && !a.isDark(d, e + 5) && a.isDark(d, e + 6) && (c += 40);
for (var e = 0; b > e; e++) for (var d = 0; b - 6 > d; d++) a.isDark(d, e) && !a.isDark(d + 1, e) && a.isDark(d + 2, e) && a.isDark(d + 3, e) && a.isDark(d + 4, e) && !a.isDark(d + 5, e) && a.isDark(d + 6, e) && (c += 40);
for (var k = 0,
e = 0; b > e; e++) for (var d = 0; b > d; d++) a.isDark(d, e) && k++;
var l = Math.abs(100 * k / b / b - 50) / 5;
return c += 10 * l
}
},
g = {
glog: function(a) {
if (1 > a) throw new Error("glog(" + a + ")");
return g.LOG_TABLE[a]
},
gexp: function(a) {
for (; 0 > a;) a += 255;
for (; a >= 256;) a -= 255;
return g.EXP_TABLE[a]
},
EXP_TABLE: new Array(256),
LOG_TABLE: new Array(256)
},
h = 0; 8 > h; h++) g.EXP_TABLE[h] = 1 << h;
for (var h = 8; 256 > h; h++) g.EXP_TABLE[h] = g.EXP_TABLE[h - 4] ^ g.EXP_TABLE[h - 5] ^ g.EXP_TABLE[h - 6] ^ g.EXP_TABLE[h - 8];
for (var h = 0; 255 > h; h++) g.LOG_TABLE[g.EXP_TABLE[h]] = h;
i.prototype = {
get: function(a) {
return this.num[a]
},
getLength: function() {
return this.num.length
},
multiply: function(a) {
for (var b = new Array(this.getLength() + a.getLength() - 1), c = 0; c < this.getLength(); c++) for (var d = 0; d < a.getLength(); d++) b[c + d] ^= g.gexp(g.glog(this.get(c)) + g.glog(a.get(d)));
return new i(b, 0)
},
mod: function(a) {
if (this.getLength() - a.getLength() < 0) return this;
for (var b = g.glog(this.get(0)) - g.glog(a.get(0)), c = new Array(this.getLength()), d = 0; d < this.getLength(); d++) c[d] = this.get(d);
for (var d = 0; d < a.getLength(); d++) c[d] ^= g.gexp(g.glog(a.get(d)) + b);
return new i(c, 0).mod(a)
}
},
j.RS_BLOCK_TABLE = [[1, 26, 19], [1, 26, 16], [1, 26, 13], [1, 26, 9], [1, 44, 34], [1, 44, 28], [1, 44, 22], [1, 44, 16], [1, 70, 55], [1, 70, 44], [2, 35, 17], [2, 35, 13], [1, 100, 80], [2, 50, 32], [2, 50, 24], [4, 25, 9], [1, 134, 108], [2, 67, 43], [2, 33, 15, 2, 34, 16], [2, 33, 11, 2, 34, 12], [2, 86, 68], [4, 43, 27], [4, 43, 19], [4, 43, 15], [2, 98, 78], [4, 49, 31], [2, 32, 14, 4, 33, 15], [4, 39, 13, 1, 40, 14], [2, 121, 97], [2, 60, 38, 2, 61, 39], [4, 40, 18, 2, 41, 19], [4, 40, 14, 2, 41, 15], [2, 146, 116], [3, 58, 36, 2, 59, 37], [4, 36, 16, 4, 37, 17], [4, 36, 12, 4, 37, 13], [2, 86, 68, 2, 87, 69], [4, 69, 43, 1, 70, 44], [6, 43, 19, 2, 44, 20], [6, 43, 15, 2, 44, 16], [4, 101, 81], [1, 80, 50, 4, 81, 51], [4, 50, 22, 4, 51, 23], [3, 36, 12, 8, 37, 13], [2, 116, 92, 2, 117, 93], [6, 58, 36, 2, 59, 37], [4, 46, 20, 6, 47, 21], [7, 42, 14, 4, 43, 15], [4, 133, 107], [8, 59, 37, 1, 60, 38], [8, 44, 20, 4, 45, 21], [12, 33, 11, 4, 34, 12], [3, 145, 115, 1, 146, 116], [4, 64, 40, 5, 65, 41], [11, 36, 16, 5, 37, 17], [11, 36, 12, 5, 37, 13], [5, 109, 87, 1, 110, 88], [5, 65, 41, 5, 66, 42], [5, 54, 24, 7, 55, 25], [11, 36, 12], [5, 122, 98, 1, 123, 99], [7, 73, 45, 3, 74, 46], [15, 43, 19, 2, 44, 20], [3, 45, 15, 13, 46, 16], [1, 135, 107, 5, 136, 108], [10, 74, 46, 1, 75, 47], [1, 50, 22, 15, 51, 23], [2, 42, 14, 17, 43, 15], [5, 150, 120, 1, 151, 121], [9, 69, 43, 4, 70, 44], [17, 50, 22, 1, 51, 23], [2, 42, 14, 19, 43, 15], [3, 141, 113, 4, 142, 114], [3, 70, 44, 11, 71, 45], [17, 47, 21, 4, 48, 22], [9, 39, 13, 16, 40, 14], [3, 135, 107, 5, 136, 108], [3, 67, 41, 13, 68, 42], [15, 54, 24, 5, 55, 25], [15, 43, 15, 10, 44, 16], [4, 144, 116, 4, 145, 117], [17, 68, 42], [17, 50, 22, 6, 51, 23], [19, 46, 16, 6, 47, 17], [2, 139, 111, 7, 140, 112], [17, 74, 46], [7, 54, 24, 16, 55, 25], [34, 37, 13], [4, 151, 121, 5, 152, 122], [4, 75, 47, 14, 76, 48], [11, 54, 24, 14, 55, 25], [16, 45, 15, 14, 46, 16], [6, 147, 117, 4, 148, 118], [6, 73, 45, 14, 74, 46], [11, 54, 24, 16, 55, 25], [30, 46, 16, 2, 47, 17], [8, 132, 106, 4, 133, 107], [8, 75, 47, 13, 76, 48], [7, 54, 24, 22, 55, 25], [22, 45, 15, 13, 46, 16], [10, 142, 114, 2, 143, 115], [19, 74, 46, 4, 75, 47], [28, 50, 22, 6, 51, 23], [33, 46, 16, 4, 47, 17], [8, 152, 122, 4, 153, 123], [22, 73, 45, 3, 74, 46], [8, 53, 23, 26, 54, 24], [12, 45, 15, 28, 46, 16], [3, 147, 117, 10, 148, 118], [3, 73, 45, 23, 74, 46], [4, 54, 24, 31, 55, 25], [11, 45, 15, 31, 46, 16], [7, 146, 116, 7, 147, 117], [21, 73, 45, 7, 74, 46], [1, 53, 23, 37, 54, 24], [19, 45, 15, 26, 46, 16], [5, 145, 115, 10, 146, 116], [19, 75, 47, 10, 76, 48], [15, 54, 24, 25, 55, 25], [23, 45, 15, 25, 46, 16], [13, 145, 115, 3, 146, 116], [2, 74, 46, 29, 75, 47], [42, 54, 24, 1, 55, 25], [23, 45, 15, 28, 46, 16], [17, 145, 115], [10, 74, 46, 23, 75, 47], [10, 54, 24, 35, 55, 25], [19, 45, 15, 35, 46, 16], [17, 145, 115, 1, 146, 116], [14, 74, 46, 21, 75, 47], [29, 54, 24, 19, 55, 25], [11, 45, 15, 46, 46, 16], [13, 145, 115, 6, 146, 116], [14, 74, 46, 23, 75, 47], [44, 54, 24, 7, 55, 25], [59, 46, 16, 1, 47, 17], [12, 151, 121, 7, 152, 122], [12, 75, 47, 26, 76, 48], [39, 54, 24, 14, 55, 25], [22, 45, 15, 41, 46, 16], [6, 151, 121, 14, 152, 122], [6, 75, 47, 34, 76, 48], [46, 54, 24, 10, 55, 25], [2, 45, 15, 64, 46, 16], [17, 152, 122, 4, 153, 123], [29, 74, 46, 14, 75, 47], [49, 54, 24, 10, 55, 25], [24, 45, 15, 46, 46, 16], [4, 152, 122, 18, 153, 123], [13, 74, 46, 32, 75, 47], [48, 54, 24, 14, 55, 25], [42, 45, 15, 32, 46, 16], [20, 147, 117, 4, 148, 118], [40, 75, 47, 7, 76, 48], [43, 54, 24, 22, 55, 25], [10, 45, 15, 67, 46, 16], [19, 148, 118, 6, 149, 119], [18, 75, 47, 31, 76, 48], [34, 54, 24, 34, 55, 25], [20, 45, 15, 61, 46, 16]],
j.getRSBlocks = function(a, b) {
var c = j.getRsBlockTable(a, b);
if (void 0 == c) throw new Error("bad rs block @ typeNumber:" + a + "/errorCorrectLevel:" + b);
for (var d = c.length / 3,
e = [], f = 0; d > f; f++) for (var g = c[3 * f + 0], h = c[3 * f + 1], i = c[3 * f + 2], k = 0; g > k; k++) e.push(new j(h, i));
return e
},
j.getRsBlockTable = function(a, b) {
switch (b) {
case d.L:
return j.RS_BLOCK_TABLE[4 * (a - 1) + 0];
case d.M:
return j.RS_BLOCK_TABLE[4 * (a - 1) + 1];
case d.Q:
return j.RS_BLOCK_TABLE[4 * (a - 1) + 2];
case d.H:
return j.RS_BLOCK_TABLE[4 * (a - 1) + 3];
default:
return void 0
}
},
k.prototype = {
get: function(a) {
var b = Math.floor(a / 8);
return 1 == (1 & this.buffer[b] >>> 7 - a % 8)
},
put: function(a, b) {
for (var c = 0; b > c; c++) this.putBit(1 == (1 & a >>> b - c - 1))
},
getLengthInBits: function() {
return this.length
},
putBit: function(a) {
var b = Math.floor(this.length / 8);
this.buffer.length <= b && this.buffer.push(0),
a && (this.buffer[b] |= 128 >>> this.length % 8),
this.length++
}
};
var l = [[17, 14, 11, 7], [32, 26, 20, 14], [53, 42, 32, 24], [78, 62, 46, 34], [106, 84, 60, 44], [134, 106, 74, 58], [154, 122, 86, 64], [192, 152, 108, 84], [230, 180, 130, 98], [271, 213, 151, 119], [321, 251, 177, 137], [367, 287, 203, 155], [425, 331, 241, 177], [458, 362, 258, 194], [520, 412, 292, 220], [586, 450, 322, 250], [644, 504, 364, 280], [718, 560, 394, 310], [792, 624, 442, 338], [858, 666, 482, 382], [929, 711, 509, 403], [1003, 779, 565, 439], [1091, 857, 611, 461], [1171, 911, 661, 511], [1273, 997, 715, 535], [1367, 1059, 751, 593], [1465, 1125, 805, 625], [1528, 1190, 868, 658], [1628, 1264, 908, 698], [1732, 1370, 982, 742], [1840, 1452, 1030, 790], [1952, 1538, 1112, 842], [2068, 1628, 1168, 898], [2188, 1722, 1228, 958], [2303, 1809, 1283, 983], [2431, 1911, 1351, 1051], [2563, 1989, 1423, 1093], [2699, 2099, 1499, 1139], [2809, 2213, 1579, 1219], [2953, 2331, 1663, 1273]],
o = function() {
var a = function(a, b) {
this._el = a,
this._htOption = b
};
return a.prototype.draw = function(a) {
function g(a, b) {
var c = document.createElementNS("http://www.w3.org/2000/svg", a);
for (var d in b) b.hasOwnProperty(d) && c.setAttribute(d, b[d]);
return c
}
var b = this._htOption,
c = this._el,
d = a.getModuleCount();
Math.floor(b.width / d),
Math.floor(b.height / d),
this.clear();
var h = g("svg", {
viewBox: "0 0 " + String(d) + " " + String(d),
width: "100%",
height: "100%",
fill: b.colorLight
});
h.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns:xlink", "http://www.w3.org/1999/xlink"),
c.appendChild(h),
h.appendChild(g("rect", {
fill: b.colorDark,
width: "1",
height: "1",
id: "template"
}));
for (var i = 0; d > i; i++) for (var j = 0; d > j; j++) if (a.isDark(i, j)) {
var k = g("use", {
x: String(i),
y: String(j)
});
k.setAttributeNS("http://www.w3.org/1999/xlink", "href", "#template"),
h.appendChild(k)
}
},
a.prototype.clear = function() {
for (; this._el.hasChildNodes();) this._el.removeChild(this._el.lastChild)
},
a
} (),
p = "svg" === document.documentElement.tagName.toLowerCase(),
q = p ? o: m() ?
function() {
function a() {
this._elImage.src = this._elCanvas.toDataURL("image/png"),
this._elImage.style.display = "block",
this._elCanvas.style.display = "none"
}
function d(a, b) {
var c = this;
if (c._fFail = b, c._fSuccess = a, null === c._bSupportDataURI) {
var d = document.createElement("img"),
e = function() {
c._bSupportDataURI = !1,
c._fFail && _fFail.call(c)
},
f = function() {
c._bSupportDataURI = !0,
c._fSuccess && c._fSuccess.call(c)
};
return d.onabort = e,
d.onerror = e,
d.onload = f,
d.src = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==",
void 0
}
c._bSupportDataURI === !0 && c._fSuccess ? c._fSuccess.call(c) : c._bSupportDataURI === !1 && c._fFail && c._fFail.call(c)
}
if (this._android && this._android <= 2.1) {
var b = 1 / window.devicePixelRatio,
c = CanvasRenderingContext2D.prototype.drawImage;
CanvasRenderingContext2D.prototype.drawImage = function(a, d, e, f, g, h, i, j) {
if ("nodeName" in a && /img/i.test(a.nodeName)) for (var l = arguments.length - 1; l >= 1; l--) arguments[l] = arguments[l] * b;
else "undefined" == typeof j && (arguments[1] *= b, arguments[2] *= b, arguments[3] *= b, arguments[4] *= b);
c.apply(this, arguments)
}
}
var e = function(a, b) {
this._bIsPainted = !1,
this._android = n(),
this._htOption = b,
this._elCanvas = document.createElement("canvas"),
this._elCanvas.width = b.width,
this._elCanvas.height = b.height,
a.appendChild(this._elCanvas),
this._el = a,
this._oContext = this._elCanvas.getContext("2d"),
this._bIsPainted = !1,
this._elImage = document.createElement("img"),
this._elImage.style.display = "none",
this._el.appendChil