issue#28 encoding mode support (Numeric, Alphanumeric, Kanji).

Author: kazuhikoarase

js/README.md

@@ -44,12 +44,13 @@ Overwrite this function to encode using a multibyte charset.
 
 ###QRCode
 
-####addData(data) => <code>void</code>
+####addData(data, mode) => <code>void</code>
 Add a data to encode.
 
-| Param  | Type                | Description      |
-| -------| ------------------- | ---------------- |
-| data   | <code>string</code> | string to encode |
+| Param  | Type                | Description                                                |
+| -------| ------------------- | ---------------------------------------------------------- |
+| data   | <code>string</code> | string to encode                                           |
+| mode   | <code>string</code> | Mode ('Numeric', 'Alphanumeric', 'Byte'(default), 'Kanji') |
 
 ####make() => <code>void</code>
 Make a QR Code.

js/package.json

@@ -1,6 +1,6 @@
 {
   "name": "qrcode-generator",
-  "version": "1.0.7",
+  "version": "1.1.0",
   "description": "QR Code Generator implementation in JavaScript.",
   "author": "Kazuhiko Arase",
   "main": "qrcode.js",

js/qrcode.d.ts

@@ -23,7 +23,7 @@ interface QRCodeFactory {
 }
 
 interface QRCode {
-  addData(data: string) : void;
+  addData(data: string, mode?: string) : void;
   make() : void;
   getModuleCount() : number;
   isDark(row: number, col: number) : boolean;

js/qrcode.js

@@ -383,8 +383,29 @@ var qrcode = function() {
       return createBytes(buffer, rsBlocks);
     };
 
-    _this.addData = function(data) {
-      var newData = qr8BitByte(data);
+    _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;
     };
@@ -1366,6 +1387,126 @@ var qrcode = function() {
     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
   //---------------------------------------------------------------------
@@ -1395,6 +1536,67 @@ var qrcode = function() {
     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.
   //

js/sample.html

@@ -25,6 +25,13 @@
         <option value="Q">Q(25%)</option>
         <option value="H">H(30%)</option>
       </select>
+      <span>Mode:</span>
+      <select name="m">
+        <option value="Numeric">Numeric</option>
+        <option value="Alphanumeric">Alphanumeric</option>
+        <option value="Byte" selected>Byte</option>
+        <option value="Kanji">Kanji</option>
+      </select>
       <br/>
       <textarea name="msg" rows="10" cols="40">here comes qr!</textarea>
       <br/>

js/sample.js

@@ -3,10 +3,10 @@ var draw_qrcode = function(text, typeNumber, errorCorrectionLevel) {
   document.write(create_qrcode(text, typeNumber, errorCorrectionLevel) );
 };
 
-var create_qrcode = function(text, typeNumber, errorCorrectionLevel, table) {
+var create_qrcode = function(text, typeNumber, errorCorrectionLevel, mode) {
 
   var qr = qrcode(typeNumber || 4, errorCorrectionLevel || 'M');
-  qr.addData(text);
+  qr.addData(text, mode);
   qr.make();
 
 //  return qr.createTableTag();
@@ -20,5 +20,6 @@ var update_qrcode = function() {
     replace(/^[\s\u3000]+|[\s\u3000]+$/g, '');
   var t = form.elements['t'].value;
   var e = form.elements['e'].value;
-  document.getElementById('qr').innerHTML = create_qrcode(text, t, e);
+  var m = form.elements['m'].value;
+  document.getElementById('qr').innerHTML = create_qrcode(text, t, e, m);
 };