feat: add Chinese support

lib/index.js

@@ -243,7 +243,6 @@ Table.prototype.toString = function (){
           - (style['padding-left'] || 0)
           - (style['padding-right'] || 0)
       , align = options.colAligns[index] || 'left';
-
     return repeat(' ', style['padding-left'] || 0)
          + (length == width ? str :
              (length < width

lib/utils.js

@@ -78,9 +78,20 @@ exports.options = options;
 //
 // see: http://en.wikipedia.org/wiki/ANSI_escape_code
 //
-exports.strlen = function(str){
+exports.strlen = function (str) {
   var code = /\u001b\[(?:\d*;){0,5}\d*m/g;
-  var stripped = ("" + str).replace(code,'');
+  var stripped = ("" + str).replace(code, "");
   var split = stripped.split("\n");
-  return split.reduce(function (memo, s) { return (s.length > memo) ? s.length : memo }, 0);
-}
+  // statistics of chinese characters
+  var chineseCharacters =
+    typeof str === "string" ? (str.match(/[\u4e00-\u9fa5]/gi) || []).length : 0;
+  return split.reduce(function (memo, s) {
+    if (s.length > memo) {
+      if (chineseCharacters) {
+        return s.length + chineseCharacters;
+      }
+      return s.length;
+    }
+    return memo;
+  }, 0);
+};

test/index.test.js

@@ -282,4 +282,25 @@ module.exports = {
 
     table.should.exist;
   },
+
+  'test chinese width property': function (){
+    var table = new Table({
+        head: ['中文'],
+        style: {
+          head: [],
+          border: []
+        }
+    });
+    table.width.should.eql(8);
+  },
+  'test mixed chinese and english width property': function (){
+    var table = new Table({
+        head: ['中文abc123'],
+        style: {
+          head: [],
+          border: []
+        }
+    });
+    table.width.should.eql(14);
+  },
 };