improve wide char support.

example/index.js

@@ -66,6 +66,17 @@ app.use(express.static(__dirname + '/../lib'));
 
 server.listen(8080);
 
+server.on('connection', function(socket) {
+  var address = socket.remoteAddress;
+  if (address !== '127.0.0.1' && address !== '::1') {
+    try {
+      socket.destroy();
+    } catch (e) {
+      ;
+    }
+  }
+});
+
 /**
  * Sockets
  */

lib/term.js

@@ -1029,7 +1029,7 @@ Terminal.prototype.refresh = function(start, end) {
           if (ch <= ' ') {
             out += '&nbsp;';
           } else {
-            // if (dwidthChars.test(ch)) i++;
+            // if (wideChars.test(ch)) i++;
             out += ch;
           }
           break;
@@ -1138,7 +1138,7 @@ Terminal.prototype.write = function(data) {
     , ch;
 
   // If we want to remove double-width chars entirely.
-  // data = data.replace(dwidthChars, '?');
+  // data = data.replace(wideChars, '?');
 
   this.refreshStart = this.y;
   this.refreshEnd = this.y;
@@ -1231,7 +1231,18 @@ Terminal.prototype.write = function(data) {
               this.lines[this.y + this.ybase][this.x] = [this.curAttr, ch];
               this.x++;
               this.updateRange(this.y);
-              // if (dwidthChars.test(ch)) this.x++;
+
+              // if (wideChars.test(ch)) {
+              //   if (this.cols < 2) {
+              //     this.lines[this.y + this.ybase][this.x - 1][1] = ' ';
+              //     break;
+              //   }
+              //   this.x++;
+              //   if (this.x >= this.cols) {
+              //     this.lines[this.y + this.ybase][this.x - 2][1] = ' ';
+              //     // Do something like: this.write(ch);
+              //   }
+              // }
             }
             break;
         }
@@ -4372,7 +4383,7 @@ function indexOf(obj, el) {
   return -1;
 }
 
-var dwidthChars = new RegExp('(['
+var wideChars = new RegExp('(['
   + '\\uff01-\\uffbe'
   + '\\uffc2-\\uffc7'
   + '\\uffca-\\uffcf'