pandorafms/pandora_console/include/javascript/qrcode.js

/*
name: qr-code-and-vcard
version: 0.9.2
author: Konstantin Nizhinskiy <konstantin.nizhinskiy@gmail.com>
date: 2018-05-14 15:05:04 

*/
(function(root, factory) {
  if (typeof define === "function" && define.amd) {
    // the AMD loader.
    define([], function() {
      return (root.qrCode = factory());
    });
  } else if (typeof module === "object" && module.exports) {
    // the CommonJS loader.
    module.exports = root.qrCode = factory();
  } else {
    root.qrCode = factory();
  }
})(this, function() {
  /**
   *
   * @constructor
   */
  var QrCode = function() {},
    majorVersion = "3.0";
  //
  /**
   * Encode string
   * @param  {String}     value to encode
   * @return {String}     encoded string
   */
  var e = function(value) {
    if (value) {
      if (typeof value !== "string") {
        value = "" + value;
      }
      return value
        .replace(/\n/g, "\\n")
        .replace(/,/g, "\\,")
        .replace(/;/g, "\\;");
    }
    return "";
  };

  /**
   * Get formatted address
   * @param  address {object}                address
   * @param  encodingPrefix {object}         encoding prefix
   * @param  majorVersion {string}           version vCard
   * @return {String}         Formatted address
   */
  function getFormattedAddress(encodingPrefix, address, majorVersion) {
    var formattedAddress = "";

    if (
      address.details.label ||
      address.details.street ||
      address.details.city ||
      address.details.stateProvince ||
      address.details.postalCode ||
      address.details.countryRegion
    ) {
      if (majorVersion >= 4) {
        formattedAddress =
          "ADR" +
          encodingPrefix +
          ";TYPE=" +
          address.type +
          (address.details.label
            ? ';LABEL="' + e(address.details.label) + '"'
            : "") +
          ":;;" +
          e(address.details.street) +
          ";" +
          e(address.details.city) +
          ";" +
          e(address.details.stateProvince) +
          ";" +
          e(address.details.postalCode) +
          ";" +
          e(address.details.countryRegion) +
          nl();
      } else {
        if (address.details.label) {
          formattedAddress =
            "LABEL" +
            encodingPrefix +
            ";TYPE=" +
            address.type +
            ":" +
            e(address.details.label) +
            nl();
        }
        formattedAddress +=
          "ADR" +
          encodingPrefix +
          ";TYPE=" +
          address.type +
          ":;;" +
          e(address.details.street) +
          ";" +
          e(address.details.city) +
          ";" +
          e(address.details.stateProvince) +
          ";" +
          e(address.details.postalCode) +
          ";" +
          e(address.details.countryRegion) +
          nl();
      }
    }

    return formattedAddress;
  }

  /**
   * Get formatted photo
   * @param  {String} photoType       Photo type (PHOTO, LOGO)
   * @param  {String} url             URL to attach photo from
   * @param  {String} mediaType       Media-type of photo (JPEG, PNG, GIF)
   * @param  {boolean} base64         base64 true/false
   * @param  {String} majorVersion    version vCard
   * @return {String}                 Formatted photo
   */
  var getFormattedPhoto = function(
    photoType,
    url,
    mediaType,
    base64,
    majorVersion
  ) {
    var params;

    if (majorVersion >= 4) {
      params = base64 ? ";ENCODING=b;MEDIATYPE=image/" : ";MEDIATYPE=image/";
    } else if (majorVersion === 3) {
      params = base64 ? ";ENCODING=b;TYPE=" : ";TYPE=";
    } else {
      params = base64 ? ";ENCODING=BASE64;" : ";";
    }

    return photoType + params + mediaType + ":" + e(url) + nl();
  };

  var getMajorVersion = function(version) {
    var majorVersionString = version ? version.split(".")[0] : "4";
    if (!isNaN(majorVersionString)) {
      return parseInt(majorVersionString);
    }
    return 4;
  };
  function getSocialUrls(type, user) {
    switch (type.toLowerCase()) {
      case "facebook":
        return "https://facebook.com/" + user;
      case "linkedin":
        return "https://linkedin.com/" + user;
      case "twitter":
        return "https://twitter.com/" + user;
      case "flickr":
        return "https://flickr.com/" + user;
      case "skype":
        return "x-apple:" + user;
      default:
        return "https://www." + type + ".com/";
    }
  }
  /**
   * Return new line characters
   * @return {String} new line characters
   */
  var nl = function() {
    return "\r\n";
  };

  //---------------------------------------------------------------------
  //
  // QR Code Generator for JavaScript
  //
  // Copyright (c) 2009 Kazuhiko Arase
  //
  // URL: http://www.d-project.com/
  //
  // Licensed under the MIT license:
  //  http://www.opensource.org/licenses/mit-license.php
  //
  // The word 'QR Code' is registered trademark of
  // DENSO WAVE INCORPORATED
  //  http://www.denso-wave.com/qrcode/faqpatent-e.html
  //
  //---------------------------------------------------------------------

  var qrcode = (function() {
    //---------------------------------------------------------------------
    // qrcode
    //---------------------------------------------------------------------

    /**
     * qrcode
     * @param typeNumber 1 to 40
     * @param errorCorrectionLevel 'L','M','Q','H'
     */
    var qrcode = function(typeNumber, errorCorrectionLevel) {
      var PAD0 = 0xec;
      var PAD1 = 0x11;

      var _typeNumber = typeNumber;
      var _errorCorrectionLevel = QRErrorCorrectionLevel[errorCorrectionLevel];
      var _modules = null;
      var _moduleCount = 0;
      var _dataCache = null;
      var _dataList = new Array();

      var _this = {};

      var makeImpl = function(test, maskPattern) {
        _moduleCount = _typeNumber * 4 + 17;
        _modules = (function(moduleCount) {
          var modules = new Array(moduleCount);
          for (var row = 0; row < moduleCount; row += 1) {
            modules[row] = new Array(moduleCount);
            for (var col = 0; col < moduleCount; col += 1) {
              modules[row][col] = null;
            }
          }
          return modules;
        })(_moduleCount);

        setupPositionProbePattern(0, 0);
        setupPositionProbePattern(_moduleCount - 7, 0);
        setupPositionProbePattern(0, _moduleCount - 7);
        setupPositionAdjustPattern();
        setupTimingPattern();
        setupTypeInfo(test, maskPattern);

        if (_typeNumber >= 7) {
          setupTypeNumber(test);
        }

        if (_dataCache == null) {
          _dataCache = createData(
            _typeNumber,
            _errorCorrectionLevel,
            _dataList
          );
        }

        mapData(_dataCache, maskPattern);
      };

      var setupPositionProbePattern = function(row, col) {
        for (var r = -1; r <= 7; r += 1) {
          if (row + r <= -1 || _moduleCount <= row + r) continue;

          for (var c = -1; c <= 7; c += 1) {
            if (col + c <= -1 || _moduleCount <= col + c) continue;

            if (
              (0 <= r && r <= 6 && (c == 0 || c == 6)) ||
              (0 <= c && c <= 6 && (r == 0 || r == 6)) ||
              (2 <= r && r <= 4 && 2 <= c && c <= 4)
            ) {
              _modules[row + r][col + c] = true;
            } else {
              _modules[row + r][col + c] = false;
            }
          }
        }
      };

      var getBestMaskPattern = function() {
        var minLostPoint = 0;
        var pattern = 0;

        for (var i = 0; i < 8; i += 1) {
          makeImpl(true, i);

          var lostPoint = QRUtil.getLostPoint(_this);

          if (i == 0 || minLostPoint > lostPoint) {
            minLostPoint = lostPoint;
            pattern = i;
          }
        }

        return pattern;
      };

      var setupTimingPattern = function() {
        for (var r = 8; r < _moduleCount - 8; r += 1) {
          if (_modules[r][6] != null) {
            continue;
          }
          _modules[r][6] = r % 2 == 0;
        }

        for (var c = 8; c < _moduleCount - 8; c += 1) {
          if (_modules[6][c] != null) {
            continue;
          }
          _modules[6][c] = c % 2 == 0;
        }
      };

      var setupPositionAdjustPattern = function() {
        var pos = QRUtil.getPatternPosition(_typeNumber);

        for (var i = 0; i < pos.length; i += 1) {
          for (var j = 0; j < pos.length; j += 1) {
            var row = pos[i];
            var col = pos[j];

            if (_modules[row][col] != null) {
              continue;
            }

            for (var r = -2; r <= 2; r += 1) {
              for (var c = -2; c <= 2; c += 1) {
                if (
                  r == -2 ||
                  r == 2 ||
                  c == -2 ||
                  c == 2 ||
                  (r == 0 && c == 0)
                ) {
                  _modules[row + r][col + c] = true;
                } else {
                  _modules[row + r][col + c] = false;
                }
              }
            }
          }
        }
      };

      var setupTypeNumber = function(test) {
        var bits = QRUtil.getBCHTypeNumber(_typeNumber);

        for (var i = 0; i < 18; i += 1) {
          var mod = !test && ((bits >> i) & 1) == 1;
          _modules[Math.floor(i / 3)][(i % 3) + _moduleCount - 8 - 3] = mod;
        }

        for (var i = 0; i < 18; i += 1) {
          var mod = !test && ((bits >> i) & 1) == 1;
          _modules[(i % 3) + _moduleCount - 8 - 3][Math.floor(i / 3)] = mod;
        }
      };

      var setupTypeInfo = function(test, maskPattern) {
        var data = (_errorCorrectionLevel << 3) | maskPattern;
        var bits = QRUtil.getBCHTypeInfo(data);

        // vertical
        for (var i = 0; i < 15; i += 1) {
          var mod = !test && ((bits >> i) & 1) == 1;

          if (i < 6) {
            _modules[i][8] = mod;
          } else if (i < 8) {
            _modules[i + 1][8] = mod;
          } else {
            _modules[_moduleCount - 15 + i][8] = mod;
          }
        }

        // horizontal
        for (var i = 0; i < 15; i += 1) {
          var mod = !test && ((bits >> i) & 1) == 1;

          if (i < 8) {
            _modules[8][_moduleCount - i - 1] = mod;
          } else if (i < 9) {
            _modules[8][15 - i - 1 + 1] = mod;
          } else {
            _modules[8][15 - i - 1] = mod;
          }
        }

        // fixed module
        _modules[_moduleCount - 8][8] = !test;
      };

      var mapData = function(data, maskPattern) {
        var inc = -1;
        var row = _moduleCount - 1;
        var bitIndex = 7;
        var byteIndex = 0;
        var maskFunc = QRUtil.getMaskFunction(maskPattern);

        for (var col = _moduleCount - 1; col > 0; col -= 2) {
          if (col == 6) col -= 1;

          while (true) {
            for (var c = 0; c < 2; c += 1) {
              if (_modules[row][col - c] == null) {
                var dark = false;

                if (byteIndex < data.length) {
                  dark = ((data[byteIndex] >>> bitIndex) & 1) == 1;
                }

                var mask = maskFunc(row, col - c);

                if (mask) {
                  dark = !dark;
                }

                _modules[row][col - c] = dark;
                bitIndex -= 1;

                if (bitIndex == -1) {
                  byteIndex += 1;
                  bitIndex = 7;
                }
              }
            }

            row += inc;

            if (row < 0 || _moduleCount <= row) {
              row -= inc;
              inc = -inc;
              break;
            }
          }
        }
      };

      var createBytes = function(buffer, rsBlocks) {
        var offset = 0;

        var maxDcCount = 0;
        var maxEcCount = 0;

        var dcdata = new Array(rsBlocks.length);
        var ecdata = new Array(rsBlocks.length);

        for (var r = 0; r < rsBlocks.length; r += 1) {
          var dcCount = rsBlocks[r].dataCount;
          var ecCount = rsBlocks[r].totalCount - dcCount;

          maxDcCount = Math.max(maxDcCount, dcCount);
          maxEcCount = Math.max(maxEcCount, ecCount);

          dcdata[r] = new Array(dcCount);

          for (var i = 0; i < dcdata[r].length; i += 1) {
            dcdata[r][i] = 0xff & buffer.getBuffer()[i + offset];
          }
          offset += dcCount;

          var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount);
          var rawPoly = qrPolynomial(dcdata[r], rsPoly.getLength() - 1);

          var modPoly = rawPoly.mod(rsPoly);
          ecdata[r] = new Array(rsPoly.getLength() - 1);
          for (var i = 0; i < ecdata[r].length; i += 1) {
            var modIndex = i + modPoly.getLength() - ecdata[r].length;
            ecdata[r][i] = modIndex >= 0 ? modPoly.getAt(modIndex) : 0;
          }
        }

        var totalCodeCount = 0;
        for (var i = 0; i < rsBlocks.length; i += 1) {
          totalCodeCount += rsBlocks[i].totalCount;
        }

        var data = new Array(totalCodeCount);
        var index = 0;

        for (var i = 0; i < maxDcCount; i += 1) {
          for (var r = 0; r < rsBlocks.length; r += 1) {
            if (i < dcdata[r].length) {
              data[index] = dcdata[r][i];
              index += 1;
            }
          }
        }

        for (var i = 0; i < maxEcCount; i += 1) {
          for (var r = 0; r < rsBlocks.length; r += 1) {
            if (i < ecdata[r].length) {
              data[index] = ecdata[r][i];
              index += 1;
            }
          }
        }

        return data;
      };

      var createData = function(typeNumber, errorCorrectionLevel, dataList) {
        var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectionLevel);

        var buffer = qrBitBuffer();

        for (var i = 0; i < dataList.length; i += 1) {
          var data = dataList[i];
          buffer.put(data.getMode(), 4);
          buffer.put(
            data.getLength(),
            QRUtil.getLengthInBits(data.getMode(), typeNumber)
          );
          data.write(buffer);
        }

        // calc num max data.
        var totalDataCount = 0;
        for (var i = 0; i < rsBlocks.length; i += 1) {
          totalDataCount += rsBlocks[i].dataCount;
        }

        if (buffer.getLengthInBits() > totalDataCount * 8) {
          throw new Error(
            "code length overflow. (" +
              buffer.getLengthInBits() +
              ">" +
              totalDataCount * 8 +
              ")"
          );
        }

        // end code
        if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) {
          buffer.put(0, 4);
        }

        // padding
        while (buffer.getLengthInBits() % 8 != 0) {
          buffer.putBit(false);
        }

        // padding
        while (true) {
          if (buffer.getLengthInBits() >= totalDataCount * 8) {
            break;
          }
          buffer.put(PAD0, 8);

          if (buffer.getLengthInBits() >= totalDataCount * 8) {
            break;
          }
          buffer.put(PAD1, 8);
        }

        return createBytes(buffer, rsBlocks);
      };

      _this.addData = function(data, mode) {
        mode = mode || "Byte";

        var newData = null;

        switch (mode) {
          case "Numeric":
            newData = qrNumber(data);
            break;
          case "Alphanumeric":
            newData = qrAlphaNum(data);
            break;
          case "Byte":
            newData = qr8BitByte(data);
            break;
          case "Kanji":
            newData = qrKanji(data);
            break;
          default:
            throw "mode:" + mode;
        }

        _dataList.push(newData);
        _dataCache = null;
      };

      _this.isDark = function(row, col) {
        if (row < 0 || _moduleCount <= row || col < 0 || _moduleCount <= col) {
          throw new Error(row + "," + col);
        }
        return _modules[row][col];
      };

      _this.getModuleCount = function() {
        return _moduleCount;
      };

      _this.make = function() {
        makeImpl(false, getBestMaskPattern());
      };

      _this.createTableTag = function(cellSize, margin) {
        cellSize = cellSize || 2;
        margin = typeof margin == "undefined" ? cellSize * 4 : margin;

        var qrHtml = "";

        qrHtml += '<table style="';
        qrHtml += " border-width: 0px; border-style: none;";
        qrHtml += " border-collapse: collapse;";
        qrHtml += " padding: 0px; margin: " + margin + "px;";
        qrHtml += '">';
        qrHtml += "<tbody>";

        for (var r = 0; r < _this.getModuleCount(); r += 1) {
          qrHtml += "<tr>";

          for (var c = 0; c < _this.getModuleCount(); c += 1) {
            qrHtml += '<td style="';
            qrHtml += " border-width: 0px; border-style: none;";
            qrHtml += " border-collapse: collapse;";
            qrHtml += " padding: 0px; margin: 0px;";
            qrHtml += " width: " + cellSize + "px;";
            qrHtml += " height: " + cellSize + "px;";
            qrHtml += " background-color: ";
            qrHtml += _this.isDark(r, c) ? "#000000" : "#ffffff";
            qrHtml += ";";
            qrHtml += '"/>';
          }

          qrHtml += "</tr>";
        }

        qrHtml += "</tbody>";
        qrHtml += "</table>";

        return qrHtml;
      };

      _this.createSvgTag = function(cellSize, margin) {
        cellSize = cellSize || 2;
        margin = typeof margin == "undefined" ? cellSize * 4 : margin;
        var size = _this.getModuleCount() * cellSize + margin * 2;
        var c,
          mc,
          r,
          mr,
          qrSvg = "",
          rect;

        rect =
          "l" +
          cellSize +
          ",0 0," +
          cellSize +
          " -" +
          cellSize +
          ",0 0,-" +
          cellSize +
          "z ";

        qrSvg += "<svg";
        qrSvg += ' width="' + size + 'px"';
        qrSvg += ' height="' + size + 'px"';
        qrSvg += ' xmlns="http://www.w3.org/2000/svg"';
        qrSvg += ">";
        qrSvg += '<path d="';

        for (r = 0; r < _this.getModuleCount(); r += 1) {
          mr = r * cellSize + margin;
          for (c = 0; c < _this.getModuleCount(); c += 1) {
            if (_this.isDark(r, c)) {
              mc = c * cellSize + margin;
              qrSvg += "M" + mc + "," + mr + rect;
            }
          }
        }

        qrSvg += '" stroke="transparent" fill="black"/>';
        qrSvg += "</svg>";

        return qrSvg;
      };

      _this.createImgTag = function(cellSize, margin) {
        cellSize = cellSize || 2;
        margin = typeof margin == "undefined" ? cellSize * 4 : margin;

        var size = _this.getModuleCount() * cellSize + margin * 2;
        var min = margin;
        var max = size - margin;

        return createImgTag(size, size, function(x, y) {
          if (min <= x && x < max && min <= y && y < max) {
            var c = Math.floor((x - min) / cellSize);
            var r = Math.floor((y - min) / cellSize);
            return _this.isDark(r, c) ? 0 : 1;
          } else {
            return 1;
          }
        });
      };

      return _this;
    };

    //---------------------------------------------------------------------
    // qrcode.stringToBytes
    //---------------------------------------------------------------------

    /*qrcode.stringToBytes = function(s) {
        var bytes = new Array();
        for (var i = 0; i < s.length; i += 1) {
            var c = s.charCodeAt(i);
            bytes.push(c & 0xff);
        }
        return bytes;
    };*/
    qrcode.stringToBytes = function(s) {
      // http://stackoverflow.com/questions/18729405/how-to-convert-utf8-string-to-byte-array
      function toUTF8Array(str) {
        var utf8 = [];
        for (var i = 0; i < str.length; i++) {
          var charcode = str.charCodeAt(i);
          if (charcode < 0x80) utf8.push(charcode);
          else if (charcode < 0x800) {
            utf8.push(0xc0 | (charcode >> 6), 0x80 | (charcode & 0x3f));
          } else if (charcode < 0xd800 || charcode >= 0xe000) {
            utf8.push(
              0xe0 | (charcode >> 12),
              0x80 | ((charcode >> 6) & 0x3f),
              0x80 | (charcode & 0x3f)
            );
          }
          // surrogate pair
          else {
            i++;
            // UTF-16 encodes 0x10000-0x10FFFF by
            // subtracting 0x10000 and splitting the
            // 20 bits of 0x0-0xFFFFF into two halves
            charcode =
              0x10000 +
              (((charcode & 0x3ff) << 10) | (str.charCodeAt(i) & 0x3ff));
            utf8.push(
              0xf0 | (charcode >> 18),
              0x80 | ((charcode >> 12) & 0x3f),
              0x80 | ((charcode >> 6) & 0x3f),
              0x80 | (charcode & 0x3f)
            );
          }
        }
        return utf8;
      }
      return toUTF8Array(s);
    };
    //---------------------------------------------------------------------
    // qrcode.createStringToBytes
    //---------------------------------------------------------------------

    /**
     * @param unicodeData base64 string of byte array.
     * [16bit Unicode],[16bit Bytes], ...
     * @param numChars
     */
    qrcode.createStringToBytes = function(unicodeData, numChars) {
      // create conversion map.

      var unicodeMap = (function() {
        var bin = base64DecodeInputStream(unicodeData);
        var read = function() {
          var b = bin.read();
          if (b == -1) throw new Error();
          return b;
        };

        var count = 0;
        var unicodeMap = {};
        while (true) {
          var b0 = bin.read();
          if (b0 == -1) break;
          var b1 = read();
          var b2 = read();
          var b3 = read();
          var k = String.fromCharCode((b0 << 8) | b1);
          var v = (b2 << 8) | b3;
          unicodeMap[k] = v;
          count += 1;
        }
        if (count != numChars) {
          throw new Error(count + " != " + numChars);
        }

        return unicodeMap;
      })();

      var unknownChar = "?".charCodeAt(0);

      return function(s) {
        var bytes = new Array();
        for (var i = 0; i < s.length; i += 1) {
          var c = s.charCodeAt(i);
          if (c < 128) {
            bytes.push(c);
          } else {
            var b = unicodeMap[s.charAt(i)];
            if (typeof b == "number") {
              if ((b & 0xff) == b) {
                // 1byte
                bytes.push(b);
              } else {
                // 2bytes
                bytes.push(b >>> 8);
                bytes.push(b & 0xff);
              }
            } else {
              bytes.push(unknownChar);
            }
          }
        }
        return bytes;
      };
    };

    //---------------------------------------------------------------------
    // QRMode
    //---------------------------------------------------------------------

    var QRMode = {
      MODE_NUMBER: 1 << 0,
      MODE_ALPHA_NUM: 1 << 1,
      MODE_8BIT_BYTE: 1 << 2,
      MODE_KANJI: 1 << 3
    };

    //---------------------------------------------------------------------
    // QRErrorCorrectionLevel
    //---------------------------------------------------------------------

    var QRErrorCorrectionLevel = {
      L: 1,
      M: 0,
      Q: 3,
      H: 2
    };

    //---------------------------------------------------------------------
    // QRMaskPattern
    //---------------------------------------------------------------------

    var QRMaskPattern = {
      PATTERN000: 0,
      PATTERN001: 1,
      PATTERN010: 2,
      PATTERN011: 3,
      PATTERN100: 4,
      PATTERN101: 5,
      PATTERN110: 6,
      PATTERN111: 7
    };

    //---------------------------------------------------------------------
    // QRUtil
    //---------------------------------------------------------------------

    var QRUtil = (function() {
      var 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]
      ];
      var G15 =
        (1 << 10) |
        (1 << 8) |
        (1 << 5) |
        (1 << 4) |
        (1 << 2) |
        (1 << 1) |
        (1 << 0);
      var G18 =
        (1 << 12) |
        (1 << 11) |
        (1 << 10) |
        (1 << 9) |
        (1 << 8) |
        (1 << 5) |
        (1 << 2) |
        (1 << 0);
      var G15_MASK = (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1);

      var _this = {};

      var getBCHDigit = function(data) {
        var digit = 0;
        while (data != 0) {
          digit += 1;
          data >>>= 1;
        }
        return digit;
      };

      _this.getBCHTypeInfo = function(data) {
        var d = data << 10;
        while (getBCHDigit(d) - getBCHDigit(G15) >= 0) {
          d ^= G15 << (getBCHDigit(d) - getBCHDigit(G15));
        }
        return ((data << 10) | d) ^ G15_MASK;
      };

      _this.getBCHTypeNumber = function(data) {
        var d = data << 12;
        while (getBCHDigit(d) - getBCHDigit(G18) >= 0) {
          d ^= G18 << (getBCHDigit(d) - getBCHDigit(G18));
        }
        return (data << 12) | d;
      };

      _this.getPatternPosition = function(typeNumber) {
        return PATTERN_POSITION_TABLE[typeNumber - 1];
      };

      _this.getMaskFunction = function(maskPattern) {
        switch (maskPattern) {
          case QRMaskPattern.PATTERN000:
            return function(i, j) {
              return (i + j) % 2 == 0;
            };
          case QRMaskPattern.PATTERN001:
            return function(i, j) {
              return i % 2 == 0;
            };
          case QRMaskPattern.PATTERN010:
            return function(i, j) {
              return j % 3 == 0;
            };
          case QRMaskPattern.PATTERN011:
            return function(i, j) {
              return (i + j) % 3 == 0;
            };
          case QRMaskPattern.PATTERN100:
            return function(i, j) {
              return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 == 0;
            };
          case QRMaskPattern.PATTERN101:
            return function(i, j) {
              return ((i * j) % 2) + ((i * j) % 3) == 0;
            };
          case QRMaskPattern.PATTERN110:
            return function(i, j) {
              return (((i * j) % 2) + ((i * j) % 3)) % 2 == 0;
            };
          case QRMaskPattern.PATTERN111:
            return function(i, j) {
              return (((i * j) % 3) + ((i + j) % 2)) % 2 == 0;
            };

          default:
            throw new Error("bad maskPattern:" + maskPattern);
        }
      };

      _this.getErrorCorrectPolynomial = function(errorCorrectLength) {
        var a = qrPolynomial([1], 0);
        for (var i = 0; i < errorCorrectLength; i += 1) {
          a = a.multiply(qrPolynomial([1, QRMath.gexp(i)], 0));
        }
        return a;
      };

      _this.getLengthInBits = function(mode, type) {
        if (1 <= type && type < 10) {
          // 1 - 9

          switch (mode) {
            case QRMode.MODE_NUMBER:
              return 10;
            case QRMode.MODE_ALPHA_NUM:
              return 9;
            case QRMode.MODE_8BIT_BYTE:
              return 8;
            case QRMode.MODE_KANJI:
              return 8;
            default:
              throw new Error("mode:" + mode);
          }
        } else if (type < 27) {
          // 10 - 26

          switch (mode) {
            case QRMode.MODE_NUMBER:
              return 12;
            case QRMode.MODE_ALPHA_NUM:
              return 11;
            case QRMode.MODE_8BIT_BYTE:
              return 16;
            case QRMode.MODE_KANJI:
              return 10;
            default:
              throw new Error("mode:" + mode);
          }
        } else if (type < 41) {
          // 27 - 40

          switch (mode) {
            case QRMode.MODE_NUMBER:
              return 14;
            case QRMode.MODE_ALPHA_NUM:
              return 13;
            case QRMode.MODE_8BIT_BYTE:
              return 16;
            case QRMode.MODE_KANJI:
              return 12;
            default:
              throw new Error("mode:" + mode);
          }
        } else {
          throw new Error("type:" + type);
        }
      };

      _this.getLostPoint = function(qrcode) {
        var moduleCount = qrcode.getModuleCount();

        var lostPoint = 0;

        // LEVEL1

        for (var row = 0; row < moduleCount; row += 1) {
          for (var col = 0; col < moduleCount; col += 1) {
            var sameCount = 0;
            var dark = qrcode.isDark(row, col);

            for (var r = -1; r <= 1; r += 1) {
              if (row + r < 0 || moduleCount <= row + r) {
                continue;
              }

              for (var c = -1; c <= 1; c += 1) {
                if (col + c < 0 || moduleCount <= col + c) {
                  continue;
                }

                if (r == 0 && c == 0) {
                  continue;
                }

                if (dark == qrcode.isDark(row + r, col + c)) {
                  sameCount += 1;
                }
              }
            }

            if (sameCount > 5) {
              lostPoint += 3 + sameCount - 5;
            }
          }
        }

        // LEVEL2

        for (var row = 0; row < moduleCount - 1; row += 1) {
          for (var col = 0; col < moduleCount - 1; col += 1) {
            var count = 0;
            if (qrcode.isDark(row, col)) count += 1;
            if (qrcode.isDark(row + 1, col)) count += 1;
            if (qrcode.isDark(row, col + 1)) count += 1;
            if (qrcode.isDark(row + 1, col + 1)) count += 1;
            if (count == 0 || count == 4) {
              lostPoint += 3;
            }
          }
        }

        // LEVEL3

        for (var row = 0; row < moduleCount; row += 1) {
          for (var col = 0; col < moduleCount - 6; col += 1) {
            if (
              qrcode.isDark(row, col) &&
              !qrcode.isDark(row, col + 1) &&
              qrcode.isDark(row, col + 2) &&
              qrcode.isDark(row, col + 3) &&
              qrcode.isDark(row, col + 4) &&
              !qrcode.isDark(row, col + 5) &&
              qrcode.isDark(row, col + 6)
            ) {
              lostPoint += 40;
            }
          }
        }

        for (var col = 0; col < moduleCount; col += 1) {
          for (var row = 0; row < moduleCount - 6; row += 1) {
            if (
              qrcode.isDark(row, col) &&
              !qrcode.isDark(row + 1, col) &&
              qrcode.isDark(row + 2, col) &&
              qrcode.isDark(row + 3, col) &&
              qrcode.isDark(row + 4, col) &&
              !qrcode.isDark(row + 5, col) &&
              qrcode.isDark(row + 6, col)
            ) {
              lostPoint += 40;
            }
          }
        }

        // LEVEL4

        var darkCount = 0;

        for (var col = 0; col < moduleCount; col += 1) {
          for (var row = 0; row < moduleCount; row += 1) {
            if (qrcode.isDark(row, col)) {
              darkCount += 1;
            }
          }
        }

        var ratio =
          Math.abs((100 * darkCount) / moduleCount / moduleCount - 50) / 5;
        lostPoint += ratio * 10;

        return lostPoint;
      };

      return _this;
    })();

    //---------------------------------------------------------------------
    // QRMath
    //---------------------------------------------------------------------

    var QRMath = (function() {
      var EXP_TABLE = new Array(256);
      var LOG_TABLE = new Array(256);

      // initialize tables
      for (var i = 0; i < 8; i += 1) {
        EXP_TABLE[i] = 1 << i;
      }
      for (var i = 8; i < 256; i += 1) {
        EXP_TABLE[i] =
          EXP_TABLE[i - 4] ^
          EXP_TABLE[i - 5] ^
          EXP_TABLE[i - 6] ^
          EXP_TABLE[i - 8];
      }
      for (var i = 0; i < 255; i += 1) {
        LOG_TABLE[EXP_TABLE[i]] = i;
      }

      var _this = {};

      _this.glog = function(n) {
        if (n < 1) {
          throw new Error("glog(" + n + ")");
        }

        return LOG_TABLE[n];
      };

      _this.gexp = function(n) {
        while (n < 0) {
          n += 255;
        }

        while (n >= 256) {
          n -= 255;
        }

        return EXP_TABLE[n];
      };

      return _this;
    })();

    //---------------------------------------------------------------------
    // qrPolynomial
    //---------------------------------------------------------------------

    function qrPolynomial(num, shift) {
      if (typeof num.length == "undefined") {
        throw new Error(num.length + "/" + shift);
      }

      var _num = (function() {
        var offset = 0;
        while (offset < num.length && num[offset] == 0) {
          offset += 1;
        }
        var _num = new Array(num.length - offset + shift);
        for (var i = 0; i < num.length - offset; i += 1) {
          _num[i] = num[i + offset];
        }
        return _num;
      })();

      var _this = {};

      _this.getAt = function(index) {
        return _num[index];
      };

      _this.getLength = function() {
        return _num.length;
      };

      _this.multiply = function(e) {
        var num = new Array(_this.getLength() + e.getLength() - 1);

        for (var i = 0; i < _this.getLength(); i += 1) {
          for (var j = 0; j < e.getLength(); j += 1) {
            num[i + j] ^= QRMath.gexp(
              QRMath.glog(_this.getAt(i)) + QRMath.glog(e.getAt(j))
            );
          }
        }

        return qrPolynomial(num, 0);
      };

      _this.mod = function(e) {
        if (_this.getLength() - e.getLength() < 0) {
          return _this;
        }

        var ratio = QRMath.glog(_this.getAt(0)) - QRMath.glog(e.getAt(0));

        var num = new Array(_this.getLength());
        for (var i = 0; i < _this.getLength(); i += 1) {
          num[i] = _this.getAt(i);
        }

        for (var i = 0; i < e.getLength(); i += 1) {
          num[i] ^= QRMath.gexp(QRMath.glog(e.getAt(i)) + ratio);
        }

        // recursive call
        return qrPolynomial(num, 0).mod(e);
      };

      return _this;
    }

    //---------------------------------------------------------------------
    // QRRSBlock
    //---------------------------------------------------------------------

    var QRRSBlock = (function() {
      var RS_BLOCK_TABLE = [
        // L
        // M
        // Q
        // H

        // 1
        [1, 26, 19],
        [1, 26, 16],
        [1, 26, 13],
        [1, 26, 9],

        // 2
        [1, 44, 34],
        [1, 44, 28],
        [1, 44, 22],
        [1, 44, 16],

        // 3
        [1, 70, 55],
        [1, 70, 44],
        [2, 35, 17],
        [2, 35, 13],

        // 4
        [1, 100, 80],
        [2, 50, 32],
        [2, 50, 24],
        [4, 25, 9],

        // 5
        [1, 134, 108],
        [2, 67, 43],
        [2, 33, 15, 2, 34, 16],
        [2, 33, 11, 2, 34, 12],

        // 6
        [2, 86, 68],
        [4, 43, 27],
        [4, 43, 19],
        [4, 43, 15],

        // 7
        [2, 98, 78],
        [4, 49, 31],
        [2, 32, 14, 4, 33, 15],
        [4, 39, 13, 1, 40, 14],

        // 8
        [2, 121, 97],
        [2, 60, 38, 2, 61, 39],
        [4, 40, 18, 2, 41, 19],
        [4, 40, 14, 2, 41, 15],

        // 9
        [2, 146, 116],
        [3, 58, 36, 2, 59, 37],
        [4, 36, 16, 4, 37, 17],
        [4, 36, 12, 4, 37, 13],

        // 10
        [2, 86, 68, 2, 87, 69],
        [4, 69, 43, 1, 70, 44],
        [6, 43, 19, 2, 44, 20],
        [6, 43, 15, 2, 44, 16],

        // 11
        [4, 101, 81],
        [1, 80, 50, 4, 81, 51],
        [4, 50, 22, 4, 51, 23],
        [3, 36, 12, 8, 37, 13],

        // 12
        [2, 116, 92, 2, 117, 93],
        [6, 58, 36, 2, 59, 37],
        [4, 46, 20, 6, 47, 21],
        [7, 42, 14, 4, 43, 15],

        // 13
        [4, 133, 107],
        [8, 59, 37, 1, 60, 38],
        [8, 44, 20, 4, 45, 21],
        [12, 33, 11, 4, 34, 12],

        // 14
        [3, 145, 115, 1, 146, 116],
        [4, 64, 40, 5, 65, 41],
        [11, 36, 16, 5, 37, 17],
        [11, 36, 12, 5, 37, 13],

        // 15
        [5, 109, 87, 1, 110, 88],
        [5, 65, 41, 5, 66, 42],
        [5, 54, 24, 7, 55, 25],
        [11, 36, 12, 7, 37, 13],

        // 16
        [5, 122, 98, 1, 123, 99],
        [7, 73, 45, 3, 74, 46],
        [15, 43, 19, 2, 44, 20],
        [3, 45, 15, 13, 46, 16],

        // 17
        [1, 135, 107, 5, 136, 108],
        [10, 74, 46, 1, 75, 47],
        [1, 50, 22, 15, 51, 23],
        [2, 42, 14, 17, 43, 15],

        // 18
        [5, 150, 120, 1, 151, 121],
        [9, 69, 43, 4, 70, 44],
        [17, 50, 22, 1, 51, 23],
        [2, 42, 14, 19, 43, 15],

        // 19
        [3, 141, 113, 4, 142, 114],
        [3, 70, 44, 11, 71, 45],
        [17, 47, 21, 4, 48, 22],
        [9, 39, 13, 16, 40, 14],

        // 20
        [3, 135, 107, 5, 136, 108],
        [3, 67, 41, 13, 68, 42],
        [15, 54, 24, 5, 55, 25],
        [15, 43, 15, 10, 44, 16],

        // 21
        [4, 144, 116, 4, 145, 117],
        [17, 68, 42],
        [17, 50, 22, 6, 51, 23],
        [19, 46, 16, 6, 47, 17],

        // 22
        [2, 139, 111, 7, 140, 112],
        [17, 74, 46],
        [7, 54, 24, 16, 55, 25],
        [34, 37, 13],

        // 23
        [4, 151, 121, 5, 152, 122],
        [4, 75, 47, 14, 76, 48],
        [11, 54, 24, 14, 55, 25],
        [16, 45, 15, 14, 46, 16],

        // 24
        [6, 147, 117, 4, 148, 118],
        [6, 73, 45, 14, 74, 46],
        [11, 54, 24, 16, 55, 25],
        [30, 46, 16, 2, 47, 17],

        // 25
        [8, 132, 106, 4, 133, 107],
        [8, 75, 47, 13, 76, 48],
        [7, 54, 24, 22, 55, 25],
        [22, 45, 15, 13, 46, 16],

        // 26
        [10, 142, 114, 2, 143, 115],
        [19, 74, 46, 4, 75, 47],
        [28, 50, 22, 6, 51, 23],
        [33, 46, 16, 4, 47, 17],

        // 27
        [8, 152, 122, 4, 153, 123],
        [22, 73, 45, 3, 74, 46],
        [8, 53, 23, 26, 54, 24],
        [12, 45, 15, 28, 46, 16],

        // 28
        [3, 147, 117, 10, 148, 118],
        [3, 73, 45, 23, 74, 46],
        [4, 54, 24, 31, 55, 25],
        [11, 45, 15, 31, 46, 16],

        // 29
        [7, 146, 116, 7, 147, 117],
        [21, 73, 45, 7, 74, 46],
        [1, 53, 23, 37, 54, 24],
        [19, 45, 15, 26, 46, 16],

        // 30
        [5, 145, 115, 10, 146, 116],
        [19, 75, 47, 10, 76, 48],
        [15, 54, 24, 25, 55, 25],
        [23, 45, 15, 25, 46, 16],

        // 31
        [13, 145, 115, 3, 146, 116],
        [2, 74, 46, 29, 75, 47],
        [42, 54, 24, 1, 55, 25],
        [23, 45, 15, 28, 46, 16],

        // 32
        [17, 145, 115],
        [10, 74, 46, 23, 75, 47],
        [10, 54, 24, 35, 55, 25],
        [19, 45, 15, 35, 46, 16],

        // 33
        [17, 145, 115, 1, 146, 116],
        [14, 74, 46, 21, 75, 47],
        [29, 54, 24, 19, 55, 25],
        [11, 45, 15, 46, 46, 16],

        // 34
        [13, 145, 115, 6, 146, 116],
        [14, 74, 46, 23, 75, 47],
        [44, 54, 24, 7, 55, 25],
        [59, 46, 16, 1, 47, 17],

        // 35
        [12, 151, 121, 7, 152, 122],
        [12, 75, 47, 26, 76, 48],
        [39, 54, 24, 14, 55, 25],
        [22, 45, 15, 41, 46, 16],

        // 36
        [6, 151, 121, 14, 152, 122],
        [6, 75, 47, 34, 76, 48],
        [46, 54, 24, 10, 55, 25],
        [2, 45, 15, 64, 46, 16],

        // 37
        [17, 152, 122, 4, 153, 123],
        [29, 74, 46, 14, 75, 47],
        [49, 54, 24, 10, 55, 25],
        [24, 45, 15, 46, 46, 16],

        // 38
        [4, 152, 122, 18, 153, 123],
        [13, 74, 46, 32, 75, 47],
        [48, 54, 24, 14, 55, 25],
        [42, 45, 15, 32, 46, 16],

        // 39
        [20, 147, 117, 4, 148, 118],
        [40, 75, 47, 7, 76, 48],
        [43, 54, 24, 22, 55, 25],
        [10, 45, 15, 67, 46, 16],

        // 40
        [19, 148, 118, 6, 149, 119],
        [18, 75, 47, 31, 76, 48],
        [34, 54, 24, 34, 55, 25],
        [20, 45, 15, 61, 46, 16]
      ];

      var qrRSBlock = function(totalCount, dataCount) {
        var _this = {};
        _this.totalCount = totalCount;
        _this.dataCount = dataCount;
        return _this;
      };

      var _this = {};

      var getRsBlockTable = function(typeNumber, errorCorrectionLevel) {
        switch (errorCorrectionLevel) {
          case QRErrorCorrectionLevel.L:
            return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0];
          case QRErrorCorrectionLevel.M:
            return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1];
          case QRErrorCorrectionLevel.Q:
            return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2];
          case QRErrorCorrectionLevel.H:
            return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3];
          default:
            return undefined;
        }
      };

      _this.getRSBlocks = function(typeNumber, errorCorrectionLevel) {
        var rsBlock = getRsBlockTable(typeNumber, errorCorrectionLevel);

        if (typeof rsBlock == "undefined") {
          throw new Error(
            "bad rs block @ typeNumber:" +
              typeNumber +
              "/errorCorrectionLevel:" +
              errorCorrectionLevel
          );
        }

        var length = rsBlock.length / 3;

        var list = new Array();

        for (var i = 0; i < length; i += 1) {
          var count = rsBlock[i * 3 + 0];
          var totalCount = rsBlock[i * 3 + 1];
          var dataCount = rsBlock[i * 3 + 2];

          for (var j = 0; j < count; j += 1) {
            list.push(qrRSBlock(totalCount, dataCount));
          }
        }

        return list;
      };

      return _this;
    })();

    //---------------------------------------------------------------------
    // qrBitBuffer
    //---------------------------------------------------------------------

    var qrBitBuffer = function() {
      var _buffer = new Array();
      var _length = 0;

      var _this = {};

      _this.getBuffer = function() {
        return _buffer;
      };

      _this.getAt = function(index) {
        var bufIndex = Math.floor(index / 8);
        return ((_buffer[bufIndex] >>> (7 - (index % 8))) & 1) == 1;
      };

      _this.put = function(num, length) {
        for (var i = 0; i < length; i += 1) {
          _this.putBit(((num >>> (length - i - 1)) & 1) == 1);
        }
      };

      _this.getLengthInBits = function() {
        return _length;
      };

      _this.putBit = function(bit) {
        var bufIndex = Math.floor(_length / 8);
        if (_buffer.length <= bufIndex) {
          _buffer.push(0);
        }

        if (bit) {
          _buffer[bufIndex] |= 0x80 >>> _length % 8;
        }

        _length += 1;
      };

      return _this;
    };

    //---------------------------------------------------------------------
    // qrNumber
    //---------------------------------------------------------------------

    var qrNumber = function(data) {
      var _mode = QRMode.MODE_NUMBER;
      var _data = data;

      var _this = {};

      _this.getMode = function() {
        return _mode;
      };

      _this.getLength = function(buffer) {
        return _data.length;
      };

      _this.write = function(buffer) {
        var data = _data;

        var i = 0;

        while (i + 2 < data.length) {
          buffer.put(strToNum(data.substring(i, i + 3)), 10);
          i += 3;
        }

        if (i < data.length) {
          if (data.length - i == 1) {
            buffer.put(strToNum(data.substring(i, i + 1)), 4);
          } else if (data.length - i == 2) {
            buffer.put(strToNum(data.substring(i, i + 2)), 7);
          }
        }
      };

      var strToNum = function(s) {
        var num = 0;
        for (var i = 0; i < s.length; i += 1) {
          num = num * 10 + chatToNum(s.charAt(i));
        }
        return num;
      };

      var chatToNum = function(c) {
        if ("0" <= c && c <= "9") {
          return c.charCodeAt(0) - "0".charCodeAt(0);
        }
        throw "illegal char :" + c;
      };

      return _this;
    };

    //---------------------------------------------------------------------
    // qrAlphaNum
    //---------------------------------------------------------------------

    var qrAlphaNum = function(data) {
      var _mode = QRMode.MODE_ALPHA_NUM;
      var _data = data;

      var _this = {};

      _this.getMode = function() {
        return _mode;
      };

      _this.getLength = function(buffer) {
        return _data.length;
      };

      _this.write = function(buffer) {
        var s = _data;

        var i = 0;

        while (i + 1 < s.length) {
          buffer.put(getCode(s.charAt(i)) * 45 + getCode(s.charAt(i + 1)), 11);
          i += 2;
        }

        if (i < s.length) {
          buffer.put(getCode(s.charAt(i)), 6);
        }
      };

      var getCode = function(c) {
        if ("0" <= c && c <= "9") {
          return c.charCodeAt(0) - "0".charCodeAt(0);
        } else if ("A" <= c && c <= "Z") {
          return c.charCodeAt(0) - "A".charCodeAt(0) + 10;
        } else {
          switch (c) {
            case " ":
              return 36;
            case "$":
              return 37;
            case "%":
              return 38;
            case "*":
              return 39;
            case "+":
              return 40;
            case "-":
              return 41;
            case ".":
              return 42;
            case "/":
              return 43;
            case ":":
              return 44;
            default:
              throw "illegal char :" + c;
          }
        }
      };

      return _this;
    };

    //---------------------------------------------------------------------
    // qr8BitByte
    //---------------------------------------------------------------------

    var qr8BitByte = function(data) {
      var _mode = QRMode.MODE_8BIT_BYTE;
      var _data = data;
      var _bytes = qrcode.stringToBytes(data);

      var _this = {};

      _this.getMode = function() {
        return _mode;
      };

      _this.getLength = function(buffer) {
        return _bytes.length;
      };

      _this.write = function(buffer) {
        for (var i = 0; i < _bytes.length; i += 1) {
          buffer.put(_bytes[i], 8);
        }
      };

      return _this;
    };

    //---------------------------------------------------------------------
    // qrKanji
    //---------------------------------------------------------------------

    var qrKanji = function(data) {
      var _mode = QRMode.MODE_KANJI;
      var _data = data;
      var _bytes = qrcode.stringToBytes(data);

      !(function(c, code) {
        // self test for sjis support.
        var test = qrcode.stringToBytes(c);
        if (test.length != 2 || ((test[0] << 8) | test[1]) != code) {
          throw "sjis not supported.";
        }
      })("\u53cb", 0x9746);

      var _this = {};

      _this.getMode = function() {
        return _mode;
      };

      _this.getLength = function(buffer) {
        return ~~(_bytes.length / 2);
      };

      _this.write = function(buffer) {
        var data = _bytes;

        var i = 0;

        while (i + 1 < data.length) {
          var c = ((0xff & data[i]) << 8) | (0xff & data[i + 1]);

          if (0x8140 <= c && c <= 0x9ffc) {
            c -= 0x8140;
          } else if (0xe040 <= c && c <= 0xebbf) {
            c -= 0xc140;
          } else {
            throw "illegal char at " + (i + 1) + "/" + c;
          }

          c = ((c >>> 8) & 0xff) * 0xc0 + (c & 0xff);

          buffer.put(c, 13);

          i += 2;
        }

        if (i < data.length) {
          throw "illegal char at " + (i + 1);
        }
      };

      return _this;
    };

    //=====================================================================
    // GIF Support etc.
    //

    //---------------------------------------------------------------------
    // byteArrayOutputStream
    //---------------------------------------------------------------------

    var byteArrayOutputStream = function() {
      var _bytes = new Array();

      var _this = {};

      _this.writeByte = function(b) {
        _bytes.push(b & 0xff);
      };

      _this.writeShort = function(i) {
        _this.writeByte(i);
        _this.writeByte(i >>> 8);
      };

      _this.writeBytes = function(b, off, len) {
        off = off || 0;
        len = len || b.length;
        for (var i = 0; i < len; i += 1) {
          _this.writeByte(b[i + off]);
        }
      };

      _this.writeString = function(s) {
        for (var i = 0; i < s.length; i += 1) {
          _this.writeByte(s.charCodeAt(i));
        }
      };

      _this.toByteArray = function() {
        return _bytes;
      };

      _this.toString = function() {
        var s = "";
        s += "[";
        for (var i = 0; i < _bytes.length; i += 1) {
          if (i > 0) {
            s += ",";
          }
          s += _bytes[i];
        }
        s += "]";
        return s;
      };

      return _this;
    };

    //---------------------------------------------------------------------
    // base64EncodeOutputStream
    //---------------------------------------------------------------------

    var base64EncodeOutputStream = function() {
      var _buffer = 0;
      var _buflen = 0;
      var _length = 0;
      var _base64 = "";

      var _this = {};

      var writeEncoded = function(b) {
        _base64 += String.fromCharCode(encode(b & 0x3f));
      };

      var encode = function(n) {
        if (n < 0) {
          // error.
        } else if (n < 26) {
          return 0x41 + n;
        } else if (n < 52) {
          return 0x61 + (n - 26);
        } else if (n < 62) {
          return 0x30 + (n - 52);
        } else if (n == 62) {
          return 0x2b;
        } else if (n == 63) {
          return 0x2f;
        }
        throw new Error("n:" + n);
      };

      _this.writeByte = function(n) {
        _buffer = (_buffer << 8) | (n & 0xff);
        _buflen += 8;
        _length += 1;

        while (_buflen >= 6) {
          writeEncoded(_buffer >>> (_buflen - 6));
          _buflen -= 6;
        }
      };

      _this.flush = function() {
        if (_buflen > 0) {
          writeEncoded(_buffer << (6 - _buflen));
          _buffer = 0;
          _buflen = 0;
        }

        if (_length % 3 != 0) {
          // padding
          var padlen = 3 - (_length % 3);
          for (var i = 0; i < padlen; i += 1) {
            _base64 += "=";
          }
        }
      };

      _this.toString = function() {
        return _base64;
      };

      return _this;
    };

    //---------------------------------------------------------------------
    // base64DecodeInputStream
    //---------------------------------------------------------------------

    var base64DecodeInputStream = function(str) {
      var _str = str;
      var _pos = 0;
      var _buffer = 0;
      var _buflen = 0;

      var _this = {};

      _this.read = function() {
        while (_buflen < 8) {
          if (_pos >= _str.length) {
            if (_buflen == 0) {
              return -1;
            }
            throw new Error("unexpected end of file./" + _buflen);
          }

          var c = _str.charAt(_pos);
          _pos += 1;

          if (c == "=") {
            _buflen = 0;
            return -1;
          } else if (c.match(/^\s$/)) {
            // ignore if whitespace.
            continue;
          }

          _buffer = (_buffer << 6) | decode(c.charCodeAt(0));
          _buflen += 6;
        }

        var n = (_buffer >>> (_buflen - 8)) & 0xff;
        _buflen -= 8;
        return n;
      };

      var decode = function(c) {
        if (0x41 <= c && c <= 0x5a) {
          return c - 0x41;
        } else if (0x61 <= c && c <= 0x7a) {
          return c - 0x61 + 26;
        } else if (0x30 <= c && c <= 0x39) {
          return c - 0x30 + 52;
        } else if (c == 0x2b) {
          return 62;
        } else if (c == 0x2f) {
          return 63;
        } else {
          throw new Error("c:" + c);
        }
      };

      return _this;
    };

    //---------------------------------------------------------------------
    // gifImage (B/W)
    //---------------------------------------------------------------------

    var gifImage = function(width, height) {
      var _width = width;
      var _height = height;
      var _data = new Array(width * height);

      var _this = {};

      _this.setPixel = function(x, y, pixel) {
        _data[y * _width + x] = pixel;
      };

      _this.write = function(out) {
        //---------------------------------
        // GIF Signature

        out.writeString("GIF87a");

        //---------------------------------
        // Screen Descriptor

        out.writeShort(_width);
        out.writeShort(_height);

        out.writeByte(0x80); // 2bit
        out.writeByte(0);
        out.writeByte(0);

        //---------------------------------
        // Global Color Map

        // black
        out.writeByte(0x00);
        out.writeByte(0x00);
        out.writeByte(0x00);

        // white
        out.writeByte(0xff);
        out.writeByte(0xff);
        out.writeByte(0xff);

        //---------------------------------
        // Image Descriptor

        out.writeString(",");
        out.writeShort(0);
        out.writeShort(0);
        out.writeShort(_width);
        out.writeShort(_height);
        out.writeByte(0);

        //---------------------------------
        // Local Color Map

        //---------------------------------
        // Raster Data

        var lzwMinCodeSize = 2;
        var raster = getLZWRaster(lzwMinCodeSize);

        out.writeByte(lzwMinCodeSize);

        var offset = 0;

        while (raster.length - offset > 255) {
          out.writeByte(255);
          out.writeBytes(raster, offset, 255);
          offset += 255;
        }

        out.writeByte(raster.length - offset);
        out.writeBytes(raster, offset, raster.length - offset);
        out.writeByte(0x00);

        //---------------------------------
        // GIF Terminator
        out.writeString(";");
      };

      var bitOutputStream = function(out) {
        var _out = out;
        var _bitLength = 0;
        var _bitBuffer = 0;

        var _this = {};

        _this.write = function(data, length) {
          if (data >>> length != 0) {
            throw new Error("length over");
          }

          while (_bitLength + length >= 8) {
            _out.writeByte(0xff & ((data << _bitLength) | _bitBuffer));
            length -= 8 - _bitLength;
            data >>>= 8 - _bitLength;
            _bitBuffer = 0;
            _bitLength = 0;
          }

          _bitBuffer = (data << _bitLength) | _bitBuffer;
          _bitLength = _bitLength + length;
        };

        _this.flush = function() {
          if (_bitLength > 0) {
            _out.writeByte(_bitBuffer);
          }
        };

        return _this;
      };

      var getLZWRaster = function(lzwMinCodeSize) {
        var clearCode = 1 << lzwMinCodeSize;
        var endCode = (1 << lzwMinCodeSize) + 1;
        var bitLength = lzwMinCodeSize + 1;

        // Setup LZWTable
        var table = lzwTable();

        for (var i = 0; i < clearCode; i += 1) {
          table.add(String.fromCharCode(i));
        }
        table.add(String.fromCharCode(clearCode));
        table.add(String.fromCharCode(endCode));

        var byteOut = byteArrayOutputStream();
        var bitOut = bitOutputStream(byteOut);

        // clear code
        bitOut.write(clearCode, bitLength);

        var dataIndex = 0;

        var s = String.fromCharCode(_data[dataIndex]);
        dataIndex += 1;

        while (dataIndex < _data.length) {
          var c = String.fromCharCode(_data[dataIndex]);
          dataIndex += 1;

          if (table.contains(s + c)) {
            s = s + c;
          } else {
            bitOut.write(table.indexOf(s), bitLength);

            if (table.size() < 0xfff) {
              if (table.size() == 1 << bitLength) {
                bitLength += 1;
              }

              table.add(s + c);
            }

            s = c;
          }
        }

        bitOut.write(table.indexOf(s), bitLength);

        // end code
        bitOut.write(endCode, bitLength);

        bitOut.flush();

        return byteOut.toByteArray();
      };

      var lzwTable = function() {
        var _map = {};
        var _size = 0;

        var _this = {};

        _this.add = function(key) {
          if (_this.contains(key)) {
            throw new Error("dup key:" + key);
          }
          _map[key] = _size;
          _size += 1;
        };

        _this.size = function() {
          return _size;
        };

        _this.indexOf = function(key) {
          return _map[key];
        };

        _this.contains = function(key) {
          return typeof _map[key] != "undefined";
        };

        return _this;
      };

      return _this;
    };

    var createImgTag = function(width, height, getPixel, alt) {
      var gif = gifImage(width, height);
      for (var y = 0; y < height; y += 1) {
        for (var x = 0; x < width; x += 1) {
          gif.setPixel(x, y, getPixel(x, y));
        }
      }

      var b = byteArrayOutputStream();
      gif.write(b);

      var base64 = base64EncodeOutputStream();
      var bytes = b.toByteArray();
      for (var i = 0; i < bytes.length; i += 1) {
        base64.writeByte(bytes[i]);
      }
      base64.flush();

      var img = "";
      img += "<img";
      img += '\u0020src="';
      img += "data:image/gif;base64,";
      img += base64;
      img += '"';
      img += '\u0020width="';
      img += width;
      img += '"';
      img += '\u0020height="';
      img += height;
      img += '"';
      if (alt) {
        img += '\u0020alt="';
        img += alt;
        img += '"';
      }
      img += "/>";

      return img;
    };

    //---------------------------------------------------------------------
    // returns qrcode function.

    return qrcode;
  })();

  //
  /**
   * Create QR code
   *
   * @param options {string|object}
   * @param options.typeNumber {number} - Type number (1 ~ 40)
   * @param options.typeElement {string} - Type element create QR ('createImg','createSvg','createTable')
   * @param options.errorCorrectionLevel {string} - Error correction level ('L', 'M', 'Q', 'H')
   * @param options.data {string} - Data for qr
   * @param options.mode {string} - Mode ('Numeric', 'Alphanumeric', 'Byte'(default), 'Kanji')
   * @param options.cellSize {number} - Size qr default: 2
   * @param options.margin {number} - Margin qr default: cellSize * 4
   * @return {string}
   */
  QrCode.prototype.createQr = function(options) {
    if ("string" === typeof options) {
      options = {
        data: options
      };
    }
    if (!options.typeNumber) {
      options.typeNumber = 15;
    }
    if (!options.typeElement) {
      options.typeElement = "createImg";
    }
    if (!options.errorCorrectionLevel) {
      options.errorCorrectionLevel = "L";
    }
    if (!options.mode) {
      options.mode = "Byte";
    }
    if (!options.cellSize) {
      options.cellSize = 2;
    }
    if (!options.margin) {
      options.margin = options.cellSize * 4;
    }
    // console.log(options);
    var qr = qrcode(options.typeNumber, options.errorCorrectionLevel);
    qr.addData(options.data, options.mode);
    qr.make();
    switch (options.typeElement) {
      case "createImg":
        return qr.createImgTag(options.cellSize, options.margin);
      case "createSvg":
        return qr.createSvgTag(options.cellSize, options.margin);
      case "createTable":
        return qr.createTableTag(options.cellSize, options.margin);
      default:
        throw new Error("Not found typeElement [" + options.typeElement + "}");
    }
  };

  /**
   * Create vCard (https://en.wikipedia.org/wiki/VCard)
   *
   * @param vCard {object}
   * @param vCard.version {string} - The version of the vCard specification. In versions 3.0 and 4.0, this must come right after the BEGIN property.
   * @param vCard.formattedName {string} - Customize contact name
   * @param vCard.firstName {string} - First name contact
   * @param vCard.middleName {string} - Middle name contact
   * @param vCard.lastName {string} - Last name contact
   * @param vCard.namePrefix {string} - Add prefix name
   * @param vCard.nameSuffix {string} - Add suffix name
   * @param vCard.nickname {string} - One or more descriptive/familiar names for the object represented by this vCard.
   * @param vCard.gender {string} - Defines the person's gender.
   * @param vCard.birthday {string} - Date of birth of the individual associated with the vCard.
   * @param vCard.anniversary {string} - Defines the person's anniversary.
   * @param vCard.email {array|string} - HOME The address for electronic mail communication with the vCard object.
   * @param vCard.workEmail {array|string} - WORK The address for electronic mail communication with the vCard object.
   * @param vCard.otherEmail {array|string} -OTHER The address for electronic mail communication with the vCard object.
   * @param vCard.logo {object} - An image or graphic of the logo of the organization that is associated with the individual to which the vCard belongs.
   * @param vCard.logo.url {string} - Url to img
   * @param vCard.logo.mediaType {string} - type
   * @param vCard.logo.base64 {boolean} - format img
   * @param vCard.photo {object} - An image or photograph of the individual associated with the vCard.
   * @param vCard.photo.url {string} -  Url to img
   * @param vCard.photo.mediaType {string} - type
   * @param vCard.photo.base64 {boolean} - format img
   * @param vCard.cellPhone {array|string} - Phone cellular
   * @param vCard.pagerPhone {array|string} - Phone to send messages to a pager
   * @param vCard.homePhone {array|string} - Phone home
   * @param vCard.workPhone {array|string} - Phone work
   * @param vCard.homeFax {array|string} - Fax home
   * @param vCard.workFax {array|string} - Fax work
   * @param vCard.otherPhone {array|string} - Other phone
   *
   * @param vCard.homeAddress {object} - Home address
   * @param vCard.homeAddress.label {string} - Represents the actual text that should be put on the mailing label when delivering a physical package to the person/object associated with the vCard (related to the ADR property).
   * @param vCard.homeAddress.street {string} - Home street
   * @param vCard.homeAddress.city {string} - Home city
   * @param vCard.homeAddress.stateProvince {string} - Home stateProvince
   * @param vCard.homeAddress.postalCode {string} - Home postalCode
   * @param vCard.homeAddress.countryRegion {string} - Home countryRegion
   * @param vCard.workAddress {object} - Home workAddress
   * @param vCard.workAddress.label {string} -  Represents the actual text that should be put on the mailing label when delivering a physical package to the person/object associated with the vCard (related to the ADR property).
   * @param vCard.workAddress.street {string} - Work street
   * @param vCard.workAddress.city {string} - Work city
   * @param vCard.workAddress.stateProvince {string} - Work stateProvince
   * @param vCard.workAddress.postalCode {string} - Work postalCode
   * @param vCard.workAddress.countryRegion {string} - Work countryRegion
   * @param vCard.title {string} - Specifies the job title, functional position or function of the individual associated with the vCard object within an organization.
   * @param vCard.role {string} - The role, occupation, or business category of the vCard object within an organization.
   * @param vCard.organization {string} - The name and optionally the unit(s) of the organization associated with the vCard object. This property is based on the X.520 Organization Name attribute and the X.520 Organization Unit attribute.
   * @param vCard.url {string} - A URL pointing to a website that represents the person in some way.
   * @param vCard.workUrl {string} - Work URL pointing to a website that represents the person in some way.
   * @param vCard.note {string} - Specifies supplemental information or a comment that is associated with the vCard.
   * @param vCard.socialUrls {object} - Social contact
   * @param vCard.socialUrls.facebook {string} - facebook
   * @param vCard.socialUrls.linkedIn {string} - linkedIn
   * @param vCard.socialUrls.twitter {string} - twitter
   * @param vCard.socialUrls.flickr {string} - flickr
   * @param vCard.socialUrls.skype {string} - skype
   * @param vCard.socialUrls.[custom] {string} - Other social
   * @param vCard.source {string} - By default, if this property is not grouped with other properties it specifies the pronunciation of the FN property of the vCard object
   * @param vCard.rev {string} - A timestamp for the last time the vCard was updated.
   *
   * @return {string}
   *
   *
   */

  QrCode.prototype.createVCard = function(vCard) {
    var majorVersion = getMajorVersion(vCard.version),
      formattedVCardString = "",
      encodingPrefix = majorVersion >= 4 ? "" : ";CHARSET=UTF-8";
    encodingPrefix = "";
    if (!vCard.version) {
      vCard.version = "4.0";
    }
    formattedVCardString += "BEGIN:VCARD" + nl();
    formattedVCardString += "VERSION:" + vCard.version + nl();

    var formattedName = vCard.formattedName;

    if (!formattedName) {
      formattedName = "";

      [vCard.firstName, vCard.middleName, vCard.lastName].forEach(function(
        name
      ) {
        if (name) {
          if (formattedName) {
            formattedName += " ";
          }
        }
        formattedName += name;
      });
    }

    formattedVCardString +=
      "FN" + encodingPrefix + ":" + e(formattedName) + nl();
    formattedVCardString +=
      "N" +
      encodingPrefix +
      ":" +
      e(vCard.lastName) +
      ";" +
      e(vCard.firstName) +
      ";" +
      e(vCard.middleName) +
      ";" +
      e(vCard.namePrefix) +
      ";" +
      e(vCard.nameSuffix) +
      nl();

    if (vCard.nickname && majorVersion >= 3) {
      formattedVCardString +=
        "NICKNAME" + encodingPrefix + ":" + e(vCard.nickname) + nl();
    }

    if (vCard.gender) {
      formattedVCardString += "GENDER:" + e(vCard.gender) + nl();
    }

    if (vCard.birthday) {
      formattedVCardString += "BDAY:" + vCard.birthday + nl();
    }

    if (vCard.anniversary) {
      formattedVCardString += "ANNIVERSARY:" + vCard.anniversary + nl();
    }

    if (vCard.email) {
      if (!Array.isArray(vCard.email)) {
        vCard.email = new Array(vCard.email);
      }
      vCard.email.forEach(function(address) {
        if (majorVersion >= 4) {
          formattedVCardString +=
            "EMAIL" + encodingPrefix + ";type=HOME:" + e(address) + nl();
        } else if (majorVersion >= 3 && majorVersion < 4) {
          formattedVCardString +=
            "EMAIL" +
            encodingPrefix +
            ";type=HOME,INTERNET:" +
            e(address) +
            nl();
        } else {
          formattedVCardString +=
            "EMAIL" + encodingPrefix + ";HOME;INTERNET:" + e(address) + nl();
        }
      });
    }

    if (vCard.workEmail) {
      if (!Array.isArray(vCard.workEmail)) {
        vCard.workEmail = new Array(vCard.workEmail);
      }
      vCard.workEmail.forEach(function(address) {
        if (majorVersion >= 4) {
          formattedVCardString +=
            "EMAIL" + encodingPrefix + ";type=WORK:" + e(address) + nl();
        } else if (majorVersion >= 3 && majorVersion < 4) {
          formattedVCardString +=
            "EMAIL" +
            encodingPrefix +
            ";type=WORK,INTERNET:" +
            e(address) +
            nl();
        } else {
          formattedVCardString +=
            "EMAIL" + encodingPrefix + ";WORK;INTERNET:" + e(address) + nl();
        }
      });
    }

    if (vCard.otherEmail) {
      if (!Array.isArray(vCard.otherEmail)) {
        vCard.otherEmail = new Array(vCard.otherEmail);
      }
      vCard.otherEmail.forEach(function(address) {
        if (majorVersion >= 4) {
          formattedVCardString +=
            "EMAIL" + encodingPrefix + ";type=OTHER:" + e(address) + nl();
        } else if (majorVersion >= 3 && majorVersion < 4) {
          formattedVCardString +=
            "EMAIL" +
            encodingPrefix +
            ";type=OTHER,INTERNET:" +
            e(address) +
            nl();
        } else {
          formattedVCardString +=
            "EMAIL" + encodingPrefix + ";OTHER;INTERNET:" + e(address) + nl();
        }
      });
    }

    if (vCard.logo && vCard.logo.url) {
      formattedVCardString += getFormattedPhoto(
        "LOGO",
        vCard.logo.url,
        vCard.logo.mediaType,
        vCard.logo.base64,
        majorVersion
      );
    }

    if (vCard.photo && vCard.photo.url) {
      formattedVCardString += getFormattedPhoto(
        "PHOTO",
        vCard.photo.url,
        vCard.photo.mediaType,
        vCard.photo.base64,
        majorVersion
      );
    }

    if (vCard.cellPhone) {
      if (!Array.isArray(vCard.cellPhone)) {
        vCard.cellPhone = new Array(vCard.cellPhone);
      }
      vCard.cellPhone.forEach(function(number) {
        if (majorVersion >= 4) {
          formattedVCardString +=
            'TEL;VALUE=uri;TYPE="voice,cell":tel:' + e(number) + nl();
        } else {
          formattedVCardString += "TEL;TYPE=CELL:" + e(number) + nl();
        }
      });
    }

    if (vCard.pagerPhone) {
      if (!Array.isArray(vCard.pagerPhone)) {
        vCard.pagerPhone = new Array(vCard.pagerPhone);
      }
      vCard.pagerPhone.forEach(function(number) {
        if (majorVersion >= 4) {
          formattedVCardString +=
            'TEL;VALUE=uri;TYPE="pager,cell":tel:' + e(number) + nl();
        } else {
          formattedVCardString += "TEL;TYPE=PAGER:" + e(number) + nl();
        }
      });
    }

    if (vCard.homePhone) {
      if (!Array.isArray(vCard.homePhone)) {
        vCard.homePhone = new Array(vCard.homePhone);
      }
      vCard.homePhone.forEach(function(number) {
        if (majorVersion >= 4) {
          formattedVCardString +=
            'TEL;VALUE=uri;TYPE="voice,home":tel:' + e(number) + nl();
        } else {
          formattedVCardString += "TEL;TYPE=HOME,VOICE:" + e(number) + nl();
        }
      });
    }

    if (vCard.workPhone) {
      if (!Array.isArray(vCard.workPhone)) {
        vCard.workPhone = new Array(vCard.workPhone);
      }
      vCard.workPhone.forEach(function(number) {
        if (majorVersion >= 4) {
          formattedVCardString +=
            'TEL;VALUE=uri;TYPE="voice,work":tel:' + e(vCard.workPhone) + nl();
        } else {
          formattedVCardString +=
            "TEL;TYPE=WORK,VOICE:" + e(vCard.workPhone) + nl();
        }
      });
    }

    if (vCard.homeFax) {
      if (!Array.isArray(vCard.homeFax)) {
        vCard.homeFax = new Array(vCard.homeFax);
      }
      vCard.homeFax.forEach(function(number) {
        if (majorVersion >= 4) {
          formattedVCardString +=
            'TEL;VALUE=uri;TYPE="fax,home":tel:' + e(number) + nl();
        } else {
          formattedVCardString += "TEL;TYPE=HOME,FAX:" + e(number) + nl();
        }
      });
    }

    if (vCard.workFax) {
      if (!Array.isArray(vCard.workFax)) {
        vCard.workFax = new Array(vCard.workFax);
      }
      vCard.workFax.forEach(function(number) {
        if (majorVersion >= 4) {
          formattedVCardString +=
            'TEL;VALUE=uri;TYPE="fax,work":tel:' + e(number) + nl();
        } else {
          formattedVCardString += "TEL;TYPE=WORK,FAX:" + e(number) + nl();
        }
      });
    }

    if (vCard.otherPhone) {
      if (!Array.isArray(vCard.otherPhone)) {
        vCard.otherPhone = new Array(vCard.otherPhone);
      }
      vCard.otherPhone.forEach(function(number) {
        if (majorVersion >= 4) {
          formattedVCardString +=
            'TEL;VALUE=uri;TYPE="voice,other":tel:' + e(number) + nl();
        } else {
          formattedVCardString += "TEL;TYPE=OTHER:" + e(number) + nl();
        }
      });
    }

    [
      {
        details: vCard.homeAddress || {},
        type: "HOME"
      },
      {
        details: vCard.workAddress || {},
        type: "WORK"
      }
    ].forEach(function(address) {
      formattedVCardString += getFormattedAddress(
        encodingPrefix,
        address,
        majorVersion
      );
    });

    if (vCard.title) {
      formattedVCardString +=
        "TITLE" + encodingPrefix + ":" + e(vCard.title) + nl();
    }

    if (vCard.role) {
      formattedVCardString +=
        "ROLE" + encodingPrefix + ":" + e(vCard.role) + nl();
    }

    if (vCard.organization) {
      formattedVCardString +=
        "ORG" + encodingPrefix + ":" + e(vCard.organization) + nl();
    }

    if (vCard.url) {
      formattedVCardString +=
        "URL" + encodingPrefix + ":" + e(vCard.url) + nl();
    }

    if (vCard.workUrl) {
      formattedVCardString +=
        "URL;type=WORK" + encodingPrefix + ":" + e(vCard.workUrl) + nl();
    }

    if (vCard.note) {
      formattedVCardString +=
        "NOTE" + encodingPrefix + ":" + e(vCard.note) + nl();
    }

    if (vCard.socialUrls) {
      for (var key in vCard.socialUrls) {
        if (vCard.socialUrls.hasOwnProperty(key) && vCard.socialUrls[key]) {
          formattedVCardString +=
            "X-SOCIALPROFILE" +
            encodingPrefix +
            ";TYPE=" +
            key +
            ";x-user=" +
            e(vCard.socialUrls[key]) +
            ":" +
            getSocialUrls(key, vCard.socialUrls[key]) +
            nl();
        }
      }
    }
    if (vCard.source) {
      formattedVCardString +=
        "SOURCE" + encodingPrefix + ":" + e(vCard.source) + nl();
    }
    if (vCard.rev) {
      formattedVCardString += "REV:" + e(vCard.REV) + nl();
    }
    formattedVCardString += "END:VCARD" + nl();
    return formattedVCardString;
  };

  /**
   * Create QR code from vCard
   *
   *
   * @param vCard {object} - object vCard
   * @param options {string|object}
   * @param options.typeNumber {number} - Type number (1 ~ 40)
   * @param options.typeElement {number} - Type element create QR ('createImg','createSvg','createTable')
   * @param options.errorCorrectionLevel {string} - Error correction level ('L', 'M', 'Q', 'H')
   * @param options.data {string} - Error correction level ('L', 'M', 'Q', 'H')
   * @param options.mode {string} - Mode ('Numeric', 'Alphanumeric', 'Byte'(default), 'Kanji')
   * @param options.cellSize {number} - Size qr default: 2
   * @param options.margin {number} - Margin qr default: cellSize * 4
   * @return {string}
   */
  QrCode.prototype.createVCardQr = function(vCard, options) {
    options.data = this.createVCard(vCard);
    return this.createQr(options);
  };

  return new QrCode();
});