Fixed `root` is undefined in some special environment.

* Improve performance.
* Add test case.

.covignore

@@ -1 +1,2 @@
+/node_modules/
 /tests/

.gitignore

@@ -0,0 +1,2 @@
+/node_modules/
+/covreporter/

.travis.yml

@@ -1,12 +1,12 @@
 language: node_js
 node_js:
-  - "0.11"
+  - "0.12.15"
-  - "0.10"
+  - "4.5"
-  - "0.8"
+  - "6.5.0"
-install:
+before_install:
-  - npm install mocha -g
+  - npm install coveralls
-  - npm install coveralls -g
+  - npm install mocha-lcov-reporter
-  - npm install mocha-lcov-reporter -g
+script: npm run-script coveralls
-  - npm install
+branches:
-script:
+  only:
-  - npm run-script coveralls
+    - master

CHANGELOG.md

@@ -1,14 +1,36 @@
-# v0.1.2 / 2015-01-07
+# Change Log
 
-* Add bower package.
+## v0.2.2 / 2017-02-08
-* Fixed JSHint warnings.
+### Fixed
-* Add travis.
+- `root` is undefined in some special environment.
-* Add coveralls.
 
-# v0.1.1 / 2014-07-27
+## v0.2.1 / 2015-04-03
+### Added
+- support AMD.
 
-Fixed accents bug
+## v0.2.0 / 2015-02-28
+### Added
+- test cases.
 
-# v0.1.0 / 2014-01-05
+### Removed
+- ascii parameter.
 
-Initial release
+### Improved
+- performance.
+
+## v0.1.2 / 2015-01-07
+### Added
+-  bower package.
+- travis.
+- coveralls.
+
+### Fixed
+- JSHint warnings.
+
+## v0.1.1 / 2014-07-27
+### Fixed
+- accents bug
+
+## v0.1.0 / 2014-01-05
+### Added
+- initial release.

LICENSE.txt

@@ -1,4 +1,4 @@
-Copyright 2014-2015 emn178@gmail.com
+Copyright 2014-2017 Chen, Yi-Cyuan
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

README.md

@@ -27,74 +27,28 @@ md2('Message to hash');
 ```
 If you use node.js, you should require the module first:
 ```JavaScript
-md2 = require('js-md2');
+var md2 = require('js-md2');
 ```
-
+If you use require.js, you should require the module first:
-### Methods
-
-#### md2(str, asciiOnly)
-
-Hash string to md2, set asciiOnly to true for better performace if you ensure input is ascii.
-
-##### *str: `String`*
-
-String to hash.
-
-##### *asciiOnly: `Boolean` (default: `false`)*
-
-Specify the string encoding is ASCII.
-
-## Example
-Code
 ```JavaScript
-md2('');
+require(['md2.js'], function (md2) {
-md2('The quick brown fox jumps over the lazy dog');
+  // ...
-md2('The quick brown fox jumps over the lazy dog.');
+});
 ```
-Output
-
-    8350e5a3e24c153df2275c9f80692773
-    03d85a0d629d2c442e987525319fc471
-    71eaa7e440b611e41a6f0d97384b342a
-
-It also supports UTF-8 encoding:
 
-Code
+## Example
 ```JavaScript
-md2('中文');
+md2(''); // 8350e5a3e24c153df2275c9f80692773
-```
+md2('The quick brown fox jumps over the lazy dog'); // 03d85a0d629d2c442e987525319fc471
-Output
+md2('The quick brown fox jumps over the lazy dog.'); // 71eaa7e440b611e41a6f0d97384b342a
-
-    7af93c270b0ec392ca2f0d90a927cf8a
 
-## Extensions
+// It also supports UTF-8 encoding
-### jQuery
+md2('中文'); // 7af93c270b0ec392ca2f0d90a927cf8a
-If you prefer jQuery style, you can add following code to add a jQuery extension.
-
-Code
-```JavaScript
-jQuery.md2 = md2
 ```
-And then you could use like this:
-```JavaScript
-$.md2('message');
-```
-### Prototype
-If you prefer prototype style, you can add following code to add a prototype extension.
 
-Code
-```JavaScript
-String.prototype.md2 = function() {
-  return md2(this);
-};
-```
-And then you could use like this:
-```JavaScript
-'message'.md2();
-```
 ## License
 The project is released under the [MIT license](http://www.opensource.org/licenses/MIT).
 
 ## Contact
 The project's website is located at https://github.com/emn178/js-md2  
-Author: emn178@gmail.com
+Author: Chen, Yi-Cyuan (emn178@gmail.com)

bower.json

@@ -1,7 +1,7 @@
 {
   "name": "js-md2",
-  "version": "0.1.2",
+  "version": "0.2.2",
-  "main": ["build/md2.min.js"],
+  "main": ["src/md2.js"],
   "ignore": [
     "samples",
     "tests"

build/md2.min.js

@@ -1,4 +1,10 @@
-(function(l,q){var m="0123456789abcdef".split(""),n=[41,46,67,201,162,216,124,1,61,54,84,161,236,240,6,19,98,167,5,243,192,199,115,140,152,147,43,217,188,76,130,202,30,155,87,60,253,212,224,22,103,66,111,24,138,23,229,18,190,78,196,214,218,158,222,73,160,251,245,142,187,47,238,122,169,104,121,145,21,178,7,63,148,194,16,137,11,34,95,33,128,127,93,154,90,144,50,39,53,62,204,231,191,247,151,3,255,25,48,179,72,165,181,209,215,94,146,42,172,86,170,198,79,184,56,210,150,164,125,182,118,252,107,226,156,
+/**
-116,4,241,69,157,112,89,100,113,135,32,134,91,207,101,230,45,168,2,27,96,37,173,174,176,185,246,28,70,97,105,52,64,126,15,85,71,163,35,221,81,175,58,195,92,249,206,186,197,234,38,44,83,13,110,133,40,132,9,211,223,205,244,65,129,77,82,106,220,55,200,108,193,171,250,36,225,123,8,12,189,177,74,120,136,149,139,227,99,232,109,233,203,213,254,59,0,29,57,242,239,183,14,102,88,208,228,166,119,114,248,235,117,75,10,49,68,80,180,143,237,31,26,219,153,141,51,159,17,131,20],p=function(k,l){var d,h=[],b,a;if(!l&&
+ * [js-md2]{@link https://github.com/emn178/js-md2}
-/[^\x00-\x7F]/.test(k)){d=[];for(a=b=0;a<k.length;a++){var c=k.charCodeAt(a);128>c?d[b++]=c:(2048>c?d[b++]=192|c>>6:(55296>c||57344<=c?d[b++]=224|c>>12:(c=65536+((c&1023)<<10|k.charCodeAt(++a)&1023),d[b++]=240|c>>18,d[b++]=128|c>>12&63),d[b++]=128|c>>6&63),d[b++]=128|c&63)}var f=d.length;b=(f>>4)+1<<4;a=[];for(c=0;c<f;++c)a[c]=d[c];for(d=16-(f&15);c<b;++c)a[c]=d;d=a}else{c=k.length;d=(c>>4)+1<<4;b=[];for(a=0;a<c;++a)b[a]=k.charCodeAt(a);for(c=16-(c&15);a<d;++a)b[a]=c;d=b}b=d;a=[];var c=0,f=b.length>>
+ *
-4,e;for(e=0;e<f;++e)for(var g=0;16>g;++g)a[g]^=n[b[(e<<4)+g]^c],c=a[g];f=b.length;for(e=0;16>e;++e)b[f+e]=a[e];for(b=0;48>b;++b)h[b]=0;c=d.length>>4;f="";for(b=0;b<c;++b){for(a=0;16>a;++a)h[16+a]=d[(b<<4)+a],h[32+a]=h[16+a]^h[a];for(a=e=0;18>a;++a){for(g=0;48>g;++g)h[g]=e=h[g]^n[e];e=e+a&255}}for(b=0;16>b;++b)f+=m[h[b]>>4&15]+m[h[b]&15];return f};"undefined"!=typeof module?module.exports=p:l&&(l.md2=p)})(this);
+ * @namespace md2
+ * @version 0.2.2
+ * @author Chen, Yi-Cyuan [emn178@gmail.com]
+ * @copyright Chen, Yi-Cyuan 2014-2017
+ * @license MIT
+ */
+!function(){"use strict";var o="object"==typeof window?window:{},e=!o.JS_MD2_NO_NODE_JS&&"object"==typeof process&&process.versions&&process.versions.node;e&&(o=global);var r=!o.JS_MD2_NO_COMMON_JS&&"object"==typeof module&&module.exports,f="function"==typeof define&&define.amd,t="0123456789abcdef".split(""),n=[41,46,67,201,162,216,124,1,61,54,84,161,236,240,6,19,98,167,5,243,192,199,115,140,152,147,43,217,188,76,130,202,30,155,87,60,253,212,224,22,103,66,111,24,138,23,229,18,190,78,196,214,218,158,222,73,160,251,245,142,187,47,238,122,169,104,121,145,21,178,7,63,148,194,16,137,11,34,95,33,128,127,93,154,90,144,50,39,53,62,204,231,191,247,151,3,255,25,48,179,72,165,181,209,215,94,146,42,172,86,170,198,79,184,56,210,150,164,125,182,118,252,107,226,156,116,4,241,69,157,112,89,100,113,135,32,134,91,207,101,230,45,168,2,27,96,37,173,174,176,185,246,28,70,97,105,52,64,126,15,85,71,163,35,221,81,175,58,195,92,249,206,186,197,234,38,44,83,13,110,133,40,132,9,211,223,205,244,65,129,77,82,106,220,55,200,108,193,171,250,36,225,123,8,12,189,177,74,120,136,149,139,227,99,232,109,233,203,213,254,59,0,29,57,242,239,183,14,102,88,208,228,166,119,114,248,235,117,75,10,49,68,80,180,143,237,31,26,219,153,141,51,159,17,131,20],d=[],i=[],s=[],c=function(o){var e,r,f,c,p,u,a=0,l=1,_=0,v=0,b=0,m=o.length;for(r=0;16>r;++r)i[r]=s[r]=0;d[16]=d[17]=d[18]=0;do{for(d[0]=d[16],d[1]=d[17],d[2]=d[18],d[16]=d[17]=d[18]=d[3]=d[4]=d[5]=d[6]=d[7]=d[8]=d[9]=d[10]=d[11]=d[12]=d[13]=d[14]=d[15]=0,r=v;m>_&&16>r;++_)e=o.charCodeAt(_),128>e?d[r++]=e:2048>e?(d[r++]=192|e>>6,d[r++]=128|63&e):55296>e||e>=57344?(d[r++]=224|e>>12,d[r++]=128|e>>6&63,d[r++]=128|63&e):(e=65536+((1023&e)<<10|1023&o.charCodeAt(++_)),d[r++]=240|e>>18,d[r++]=128|e>>12&63,d[r++]=128|e>>6&63,d[r++]=128|63&e);if(b+=r-v,v=r-16,_===m&&16>r)for(l=2,p=16-(15&b);16>r;++r)d[r]=p;for(r=0;16>r;++r)s[r]^=n[d[r]^a],a=s[r];for(r=0;l>r;++r)for(u=0===r?d:s,i[16]=u[0],i[32]=i[16]^i[0],i[17]=u[1],i[33]=i[17]^i[1],i[18]=u[2],i[34]=i[18]^i[2],i[19]=u[3],i[35]=i[19]^i[3],i[20]=u[4],i[36]=i[20]^i[4],i[21]=u[5],i[37]=i[21]^i[5],i[22]=u[6],i[38]=i[22]^i[6],i[23]=u[7],i[39]=i[23]^i[7],i[24]=u[8],i[40]=i[24]^i[8],i[25]=u[9],i[41]=i[25]^i[9],i[26]=u[10],i[42]=i[26]^i[10],i[27]=u[11],i[43]=i[27]^i[11],i[28]=u[12],i[44]=i[28]^i[12],i[29]=u[13],i[45]=i[29]^i[13],i[30]=u[14],i[46]=i[30]^i[14],i[31]=u[15],i[47]=i[31]^i[15],p=0,f=0;18>f;++f){for(c=0;48>c;++c)i[c]=p=i[c]^n[p];p=p+f&255}}while(1===l);var w="";for(r=0;16>r;++r)w+=t[i[r]>>4&15]+t[15&i[r]];return w};r?module.exports=c:(o.md2=c,f&&define(function(){return c}))}();

package.json

@@ -1,15 +1,19 @@
 {
   "name": "js-md2",
-  "version": "0.1.2",
+  "version": "0.2.2",
   "description": "A simple MD2 hash function for JavaScript supports UTF-8 encoding.",
   "main": "src/md2.js",
   "devDependencies": {
     "expect.js": "~0.3.1",
-    "jscoverage": "~0.5.9"
+    "jscoverage": "~0.5.9",
+    "mocha": "~2.3.4",
+    "uglifyjs": "~2.4.10"
   },
   "scripts": {
     "test": "mocha tests/node-test.js -r jscoverage",
-    "coveralls": "mocha tests/node-test.js -R mocha-lcov-reporter -r jscoverage | coveralls"
+    "report": "mocha tests/node-test.js -r jscoverage --covout=html",
+    "coveralls": "mocha tests/node-test.js -R mocha-lcov-reporter -r jscoverage | coveralls",
+    "build": "uglifyjs src/md2.js --compress --mangle --comments --output build/md2.min.js"
   },
   "repository": {
     "type": "git",
@@ -23,7 +27,7 @@
     "HMAC"
   ],
   "license": "MIT",
-  "author": "emn178 <emn178@gmail.com>",
+  "author": "Chen, Yi-Cyuan <emn178@gmail.com>",
   "homepage": "https://github.com/emn178/js-md2",
   "bugs": {
     "url": "https://github.com/emn178/js-md2/issues"

src/md2.js

@@ -1,18 +1,27 @@
-/*
+/**
- * js-md5 v0.1.2
+ * [js-md2]{@link https://github.com/emn178/js-md2}
- * https://github.com/emn178/js-md2
  *
- * Copyright 2014-2015, emn178@gmail.com
+ * @namespace md2
- *
+ * @version 0.2.2
- * Licensed under the MIT license:
+ * @author Chen, Yi-Cyuan [emn178@gmail.com]
- * http://www.opensource.org/licenses/MIT
+ * @copyright Chen, Yi-Cyuan 2014-2017
+ * @license MIT
  */
-;(function(root, undefined) {
+/*jslint bitwise: true */
+(function () {
   'use strict';
 
+  var root = typeof window === 'object' ? window : {};
+  var NODE_JS = !root.JS_MD2_NO_NODE_JS && typeof process === 'object' && process.versions && process.versions.node;
+  if (NODE_JS) {
+    root = global;
+  }
+  var COMMON_JS = !root.JS_MD2_NO_COMMON_JS && typeof module === 'object' && module.exports;
+  var AMD = typeof define === 'function' && define.amd;
   var HEX_CHARS = '0123456789abcdef'.split('');
 
-  var S = [ 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13,
+  var S = [
+    0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13,
     0x62, 0xA7, 0x05, 0xF3, 0xC0, 0xC7, 0x73, 0x8C, 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, 0x82, 0xCA, 
     0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, 
     0xBE, 0x4E, 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, 0xA0, 0xFB, 0xF5, 0x8E, 0xBB, 0x2F, 0xEE, 0x7A, 
@@ -27,116 +36,124 @@
     0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, 
     0x78, 0x88, 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, 0xE9, 0xCB, 0xD5, 0xFE, 0x3B, 0x00, 0x1D, 0x39, 
     0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, 0xD0, 0xE4, 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A, 
-            0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 0xDB, 0x99, 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14];
+    0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 0xDB, 0x99, 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14
+  ];
 
-  var md2 = function(message, asciiOnly) {
+  var M = [], X = [], C = [];
-    var M, X = [], i, j;
-    if(!asciiOnly && /[^\x00-\x7F]/.test(message)) {
-      M = getBlocksFromUtf8(message);
-    } else {
-      M = getBlocksFromAscii(message);
-    }
-    appendChecksum(M);
 
-    for(i = 0;i < 48;++i) {
+  var md2 = function (message) {
-      X[i] = 0;
+    var code, i, j, k, t, L = 0, loop = 1, B,
-    }
+      index = 0, start = 0, bytes = 0, length = message.length;
-    var length = M.length >> 4, hex = '';
-    for(i = 0;i < length;++i) {
-      for(j = 0;j < 16;++j) {
-        X[16 + j] = M[(i << 4) + j];
-        X[32 + j] = X[16 + j] ^ X[j];
-      }
-      var t = 0;
-      for(j = 0;j < 18;++j) {
-        for(var k = 0;k < 48;++k) {
-          X[k] = t = X[k] ^ S[t];
-        }
-        t = (t + j) & 0xFF;
-      }
-    }
 
     for (i = 0; i < 16; ++i) {
-      hex += HEX_CHARS[(X[i] >> 4) & 0x0F] + HEX_CHARS[X[i] & 0x0F];
+      X[i] = C[i] = 0;
     }
-    return hex;
-  };
 
-  var getBytesFromUtf8 = function(str) {
+    M[16] = M[17] = M[18] = 0;
-    var bytes = [], index = 0;
+    do {
-    for (var i = 0;i < str.length; i++) {
+      M[0] = M[16];
-      var c = str.charCodeAt(i);
+      M[1] = M[17];
-      if (c < 0x80) {
+      M[2] = M[18];
-        bytes[index++] = c;
+      M[16] = M[17] = M[18] = M[3] =
-      } else if (c < 0x800) {
+      M[4] = M[5] = M[6] = M[7] =
-        bytes[index++] = 0xc0 | (c >> 6);
+      M[8] = M[9] = M[10] = M[11] =
-        bytes[index++] = 0x80 | (c & 0x3f);
+      M[12] = M[13] = M[14] = M[15] = 0;
-      } else if (c < 0xd800 || c >= 0xe000) {
+      for (i = start; index < length && i < 16; ++index) {
-        bytes[index++] = 0xe0 | (c >> 12);
+        code = message.charCodeAt(index);
-        bytes[index++] = 0x80 | ((c >> 6) & 0x3f);
+        if (code < 0x80) {
-        bytes[index++] = 0x80 | (c & 0x3f);
+          M[i++] = code;
+        } else if (code < 0x800) {
+          M[i++] = 0xc0 | (code >> 6);
+          M[i++] = 0x80 | (code & 0x3f);
+        } else if (code < 0xd800 || code >= 0xe000) {
+          M[i++] = 0xe0 | (code >> 12);
+          M[i++] = 0x80 | ((code >> 6) & 0x3f);
+          M[i++] = 0x80 | (code & 0x3f);
         } else {
-        c = 0x10000 + (((c & 0x3ff) << 10) | (str.charCodeAt(++i) & 0x3ff));
+          code = 0x10000 + (((code & 0x3ff) << 10) | (message.charCodeAt(++index) & 0x3ff));
-        bytes[index++] = 0xf0 | (c >> 18);
+          M[i++] = 0xf0 | (code >> 18);
-        bytes[index++] = 0x80 | ((c >> 12) & 0x3f);
+          M[i++] = 0x80 | ((code >> 12) & 0x3f);
-        bytes[index++] = 0x80 | ((c >> 6) & 0x3f);
+          M[i++] = 0x80 | ((code >> 6) & 0x3f);
-        bytes[index++] = 0x80 | (c & 0x3f);
+          M[i++] = 0x80 | (code & 0x3f);
         }
       }
-    return bytes;
+      bytes += i - start;
-  };
+      start = i - 16;
 
-  var getBlocksFromAscii = function(message) {
+      if (index === length && i < 16) {
-    // a block is 8 bits(1 bytes), a chunk is 128 bits(16 bytes)
+        loop = 2;
-    var length = message.length;
+        t = 16 - (bytes & 15);
-    var chunkCount = (length >> 4) + 1;
+        for (; i < 16; ++i) {
-    var blockCount = chunkCount << 4; // chunkCount * 16
+          M[i] = t;
-    var blocks = [], i;
-    for(i = 0;i < length;++i) {
-      blocks[i] = message.charCodeAt(i);
         }
-    var ibit = 16 - (length & 15);
-    for(;i < blockCount;++i) {
-      blocks[i] = ibit;
       }
-    return blocks;
-  };
 
-  var getBlocksFromUtf8 = function(message) {
+      for (i = 0; i < 16; ++i) {
-    // a block is 8 bits(1 bytes), a chunk is 128 bits(16 bytes)
+        C[i] ^= S[M[i] ^ L];
-    var bytes = getBytesFromUtf8(message);
+        L = C[i];
-    var length = bytes.length;
-    var chunkCount = (length >> 4) + 1;
-    var blockCount = chunkCount << 4; // chunkCount * 16
-    var blocks = [], i;
-    for(i = 0;i < length;++i) {
-      blocks[i] = bytes[i];
-    }
-    var ibit = 16 - (length & 15);
-    for(;i < blockCount;++i) {
-      blocks[i] = ibit;
       }
-    return blocks;
-  };
 
-  var appendChecksum = function(M) {
+      for (i = 0; i < loop; ++i) {
-    var checksum = [], L = 0, length = M.length >> 4, i;
+        B = i === 0 ? M : C;
-    for(i = 0;i < length;++i) {
+
-      for(var j = 0;j < 16;++j) {
+        X[16] = B[0];
-        var c = M[(i << 4) + j];
+        X[32] = X[16] ^ X[0];
-        checksum[j] ^= S[c ^ L];
+        X[17] = B[1];
-        L = checksum[j];
+        X[33] = X[17] ^ X[1];
+        X[18] = B[2];
+        X[34] = X[18] ^ X[2];
+        X[19] = B[3];
+        X[35] = X[19] ^ X[3];
+        X[20] = B[4];
+        X[36] = X[20] ^ X[4];
+        X[21] = B[5];
+        X[37] = X[21] ^ X[5];
+        X[22] = B[6];
+        X[38] = X[22] ^ X[6];
+        X[23] = B[7];
+        X[39] = X[23] ^ X[7];
+        X[24] = B[8];
+        X[40] = X[24] ^ X[8];
+        X[25] = B[9];
+        X[41] = X[25] ^ X[9];
+        X[26] = B[10];
+        X[42] = X[26] ^ X[10];
+        X[27] = B[11];
+        X[43] = X[27] ^ X[11];
+        X[28] = B[12];
+        X[44] = X[28] ^ X[12];
+        X[29] = B[13];
+        X[45] = X[29] ^ X[13];
+        X[30] = B[14];
+        X[46] = X[30] ^ X[14];
+        X[31] = B[15];
+        X[47] = X[31] ^ X[15];
+
+        t = 0;
+        for (j = 0; j < 18; ++j) {
+          for (k = 0; k < 48; ++k) {
+            X[k] = t = X[k] ^ S[t];
+          }
+          t = (t + j) & 0xFF;
         }
       }
-    length = M.length;
+    } while (loop === 1);
+
+    var hex = '';
     for (i = 0; i < 16; ++i) {
-      M[length + i] = checksum[i];
+      hex += HEX_CHARS[(X[i] >> 4) & 0x0F] + HEX_CHARS[X[i] & 0x0F];
     }
+    return hex;
   };
   
-  if(typeof(module) != 'undefined') {
+  if (COMMON_JS) {
     module.exports = md2;
-  } else if(root) {
+  } else {
     root.md2 = md2;
+    if (AMD) {
+      define(function() {
+        return md2;
+      });
+    }
   }
-}(this));
+})();

tests/node-test.js

@@ -1,3 +1,50 @@
-md2 = require('../src/md2.js');
+// Node.js env
 expect = require('expect.js');
+md2 = require('../src/md2.js');
+require('./test.js');
+
+delete require.cache[require.resolve('../src/md2.js')]
+delete require.cache[require.resolve('./test.js')]
+md2 = null
+
+// Webpack browser env
+JS_MD2_NO_NODE_JS = true;
+window = global;
+md2 = require('../src/md2.js');
+require('./test.js');
+
+delete require.cache[require.resolve('../src/md2.js')]
+delete require.cache[require.resolve('./test.js')]
+md2 = null
+
+// browser env
+JS_MD2_NO_NODE_JS = true;
+JS_MD2_NO_COMMON_JS = true;
+window = global;
+require('../src/md2.js');
+require('./test.js');
+
+delete require.cache[require.resolve('../src/md2.js')];
+delete require.cache[require.resolve('./test.js')];
+md2 = null;
+
+// browser AMD
+JS_MD2_NO_NODE_JS = true;
+JS_MD2_NO_COMMON_JS = true;
+window = global;
+define = function (func) {
+  md2 = func();
   require('./test.js');
+};
+define.amd = true;
+
+require('../src/md2.js');
+
+
+// define = function(func) {
+//   md2 = func();
+// };
+// define.amd = true;
+
+// require('../src/md2.js');
+// require('./test.js');

tests/requirejs.html

@@ -0,0 +1,24 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>MD2</title>
+  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/mocha/2.1.0/mocha.min.css">
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/mocha/2.1.0/mocha.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/expect.js/0.2.0/expect.min.js"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.1.17/require.min.js"></script>
+</head>
+<body>
+  <div id="mocha"></div>
+  <script>
+    mocha.setup('bdd');
+    require(['../src/md2.js'], function (md2) {
+      window.md2 = md2;
+      require(['test.js'], function () {
+        mocha.checkLeaks();
+        mocha.run();
+      })
+    });
+  </script>
+</body>
+</html>

tests/test.js

@@ -1,3 +1,4 @@
+(function (md2) {
   describe('ascii', function () {
     describe('less than 64 bytes', function () {
       it('should be successful', function () {
@@ -19,6 +20,7 @@ describe('UTF8', function() {
       it('should be successful', function () {
         expect(md2('中文')).to.be('7af93c270b0ec392ca2f0d90a927cf8a');
         expect(md2('aécio')).to.be('628657f2dbd637b6b13500e8567a1c83');
+        expect(md2('𠜎')).to.be('434fc70b04f5ce106b1463f2201223a2');
       });
     });
 
@@ -28,3 +30,4 @@ describe('UTF8', function() {
       });
     });
   });
+})(md2);