diff --git a/lib/ansiparse.js b/lib/ansiparse.js
index 4a8938b..f6e9b49 100644
--- a/lib/ansiparse.js
+++ b/lib/ansiparse.js
@@ -1,184 +1,199 @@
-function ansiparse(str) {
-  //
-  // I'm terrible at writing parsers.
-  //
-  var matchingControl = null,
-      matchingData = null,
-      matchingText = '',
-      ansiState = [],
-      result = [],
-      state = {},
-      eraseChar;
+;(function() {
 
-  //
-  // General workflow for this thing is:
-  // \033\[33mText
-  // |     |  |
-  // |     |  matchingText
-  // |     matchingData
-  // matchingControl
-  //
-  // In further steps we hope it's all going to be fine. It usually is.
-  //
+  function ansiparse(str) {
+    //
+    // I'm terrible at writing parsers.
+    //
+    var matchingControl = null,
+        matchingData = null,
+        matchingText = '',
+        ansiState = [],
+        result = [],
+        state = {},
+        eraseChar;
 
-  //
-  // Erases a char from the output
-  //
-  eraseChar = function () {
-    var index, text;
-    if (matchingText.length) {
-      matchingText = matchingText.substr(0, matchingText.length - 1);
-    }
-    else if (result.length) {
-      index = result.length - 1;
-      text = result[index].text;
-      if (text.length === 1) {
-        //
-        // A result bit was fully deleted, pop it out to simplify the final output
-        //
-        result.pop();
+    //
+    // General workflow for this thing is:
+    // \033\[33mText
+    // |     |  |
+    // |     |  matchingText
+    // |     matchingData
+    // matchingControl
+    //
+    // In further steps we hope it's all going to be fine. It usually is.
+    //
+
+    //
+    // Erases a char from the output
+    //
+    eraseChar = function () {
+      var index, text;
+      if (matchingText.length) {
+        matchingText = matchingText.substr(0, matchingText.length - 1);
       }
-      else {
-        result[index].text = text.substr(0, text.length - 1);
+      else if (result.length) {
+        index = result.length - 1;
+        text = result[index].text;
+        if (text.length === 1) {
+          //
+          // A result bit was fully deleted, pop it out to simplify the final output
+          //
+          result.pop();
+        }
+        else {
+          result[index].text = text.substr(0, text.length - 1);
+        }
       }
-    }
-  };
+    };
 
-  for (var i = 0; i < str.length; i++) {
-    if (matchingControl != null) {
-      if (matchingControl == '\033' && str[i] == '\[') {
-        //
-        // We've matched full control code. Lets start matching formating data.
-        //
+    for (var i = 0; i < str.length; i++) {
+      if (matchingControl != null) {
+        if (matchingControl == '\033' && str[i] == '\[') {
+          //
+          // We've matched full control code. Lets start matching formating data.
+          //
 
-        //
-        // "emit" matched text with correct state
-        //
-        if (matchingText) {
-          state.text = matchingText;
-          result.push(state);
-          state = {};
-          matchingText = "";
-        }
+          //
+          // "emit" matched text with correct state
+          //
+          if (matchingText) {
+            state.text = matchingText;
+            result.push(state);
+            state = {};
+            matchingText = "";
+          }
 
-        matchingControl = null;
-        matchingData = '';
-      }
-      else {
-        //
-        // We failed to match anything - most likely a bad control code. We
-        // go back to matching regular strings.
-        //
-        matchingText += matchingControl + str[i];
-        matchingControl = null;
+          matchingControl = null;
+          matchingData = '';
+        }
+        else {
+          //
+          // We failed to match anything - most likely a bad control code. We
+          // go back to matching regular strings.
+          //
+          matchingText += matchingControl + str[i];
+          matchingControl = null;
+        }
+        continue;
       }
-      continue;
-    }
-    else if (matchingData != null) {
-      if (str[i] == ';') {
-        //
-        // `;` separates many formatting codes, for example: `\033[33;43m`
-        // means that both `33` and `43` should be applied.
-        //
-        // TODO: this can be simplified by modifying state here.
-        //
-        ansiState.push(matchingData);
-        matchingData = '';
+      else if (matchingData != null) {
+        if (str[i] == ';') {
+          //
+          // `;` separates many formatting codes, for example: `\033[33;43m`
+          // means that both `33` and `43` should be applied.
+          //
+          // TODO: this can be simplified by modifying state here.
+          //
+          ansiState.push(matchingData);
+          matchingData = '';
+        }
+        else if (str[i] == 'm') {
+          //
+          // `m` finished whole formatting code. We can proceed to matching
+          // formatted text.
+          //
+          ansiState.push(matchingData);
+          matchingData = null;
+          matchingText = '';
+
+          //
+          // Convert matched formatting data into user-friendly state object.
+          //
+          // TODO: DRY.
+          //
+          ansiState.forEach(function (ansiCode) {
+            if (ansiparse.foregroundColors[ansiCode]) {
+              state.foreground = ansiparse.foregroundColors[ansiCode];
+            }
+            else if (ansiparse.backgroundColors[ansiCode]) {
+              state.background = ansiparse.backgroundColors[ansiCode];
+            }
+            else if (ansiCode == 39) {
+              delete state.foreground;
+            }
+            else if (ansiCode == 49) {
+              delete state.background;
+            }
+            else if (ansiparse.styles[ansiCode]) {
+              state[ansiparse.styles[ansiCode]] = true;
+            }
+            else if (ansiCode == 22) {
+              state.bold = false;
+            }
+            else if (ansiCode == 23) {
+              state.italic = false;
+            }
+            else if (ansiCode == 24) {
+              state.underline = false;
+            }
+          });
+          ansiState = [];
+        }
+        else {
+          matchingData += str[i];
+        }
+        continue;
       }
-      else if (str[i] == 'm') {
-        //
-        // `m` finished whole formatting code. We can proceed to matching
-        // formatted text.
-        //
-        ansiState.push(matchingData);
-        matchingData = null;
-        matchingText = '';
 
-        //
-        // Convert matched formatting data into user-friendly state object.
-        //
-        // TODO: DRY.
-        //
-        ansiState.forEach(function (ansiCode) {
-          if (ansiparse.foregroundColors[ansiCode]) {
-            state.foreground = ansiparse.foregroundColors[ansiCode];
-          }
-          else if (ansiparse.backgroundColors[ansiCode]) {
-            state.background = ansiparse.backgroundColors[ansiCode];
-          }
-          else if (ansiCode == 39) {
-            delete state.foreground;
-          }
-          else if (ansiCode == 49) {
-            delete state.background;
-          }
-          else if (ansiparse.styles[ansiCode]) {
-            state[ansiparse.styles[ansiCode]] = true;
-          }
-          else if (ansiCode == 22) {
-            state.bold = false;
-          }
-          else if (ansiCode == 23) {
-            state.italic = false;
-          }
-          else if (ansiCode == 24) {
-            state.underline = false;
-          }
-        });
-        ansiState = [];
+      if (str[i] == '\033') {
+        matchingControl = str[i];
+      }
+      else if (str[i] == '\u0008') {
+        eraseChar();
       }
       else {
-        matchingData += str[i];
+        matchingText += str[i];
       }
-      continue;
     }
 
-    if (str[i] == '\033') {
-      matchingControl = str[i];
-    }
-    else if (str[i] == '\u0008') {
-      eraseChar();
-    }
-    else {
-      matchingText += str[i];
+    if (matchingText) {
+      state.text = matchingText + (matchingControl ? matchingControl : '');
+      result.push(state);
     }
+    return result;
   }
 
-  if (matchingText) {
-    state.text = matchingText + (matchingControl ? matchingControl : '');
-    result.push(state);
-  }
-  return result;
-}
-
-ansiparse.foregroundColors = {
-  '30': 'black',
-  '31': 'red',
-  '32': 'green',
-  '33': 'yellow',
-  '34': 'blue',
-  '35': 'magenta',
-  '36': 'cyan',
-  '37': 'white',
-  '90': 'grey'
-};
+  ansiparse.foregroundColors = {
+    '30': 'black',
+    '31': 'red',
+    '32': 'green',
+    '33': 'yellow',
+    '34': 'blue',
+    '35': 'magenta',
+    '36': 'cyan',
+    '37': 'white',
+    '90': 'grey'
+  };
 
-ansiparse.backgroundColors = {
-  '40': 'black',
-  '41': 'red',
-  '42': 'green',
-  '43': 'yellow',
-  '44': 'blue',
-  '45': 'magenta',
-  '46': 'cyan',
-  '47': 'white'
-};
+  ansiparse.backgroundColors = {
+    '40': 'black',
+    '41': 'red',
+    '42': 'green',
+    '43': 'yellow',
+    '44': 'blue',
+    '45': 'magenta',
+    '46': 'cyan',
+    '47': 'white'
+  };
 
-ansiparse.styles = {
-  '1': 'bold',
-  '3': 'italic',
-  '4': 'underline'
-};
+  ansiparse.styles = {
+    '1': 'bold',
+    '3': 'italic',
+    '4': 'underline'
+  };
 
-module.exports = ansiparse;
+  // export
+  if (typeof exports !== 'undefined') {
+    if (typeof module !== 'undefined' && module.exports) {
+      exports = module.exports = ansiparse;
+    }
+    exports.ansiparse = ansiparse;
+  } else if (typeof define === 'function' && define.amd) {
+    define(function() { return ansiparse; })
+  } else {
+    this.ansiparse = ansiparse;
+  }
 
+}).call(function () {
+  return this || (typeof window !== 'undefined' ? window : global);
+}());