1 files changed, 83 insertions, 63 deletions
diff --git a/lib/Unescaper.js b/lib/Unescaper.js
index c4a707a..d0c826e 100644
--- a/lib/Unescaper.js
+++ b/lib/Unescaper.js
@@ -1,4 +1,4 @@
-// Generated by CoffeeScript 1.12.4
+// Generated by CoffeeScript 2.4.1
 var Pattern, Unescaper, Utils;
 
 Utils = require('./Utils');
@@ -6,78 +6,98 @@ Utils = require('./Utils');
 Pattern = require('./Pattern');
 
 Unescaper = (function() {
-  function Unescaper() {}
+  // Unescaper encapsulates unescaping rules for single and double-quoted YAML strings.
 
-  Unescaper.PATTERN_ESCAPED_CHARACTER = new Pattern('\\\\([0abt\tnvfre "\\/\\\\N_LP]|x[0-9a-fA-F]{2}|u[0-9a-fA-F]{4}|U[0-9a-fA-F]{8})');
+  class Unescaper {
+    static unescapeSingleQuotedString(value) {
+      return value.replace(/\'\'/g, '\'');
+    }
 
-  Unescaper.unescapeSingleQuotedString = function(value) {
-    return value.replace(/\'\'/g, '\'');
-  };
+    // Unescapes a double quoted string.
 
-  Unescaper.unescapeDoubleQuotedString = function(value) {
-    if (this._unescapeCallback == null) {
-      this._unescapeCallback = (function(_this) {
-        return function(str) {
-          return _this.unescapeCharacter(str);
+    // @param [String]       value A double quoted string.
+
+    // @return [String]      The unescaped string.
+
+    static unescapeDoubleQuotedString(value) {
+      if (this._unescapeCallback == null) {
+        this._unescapeCallback = (str) => {
+          return this.unescapeCharacter(str);
         };
-      })(this);
+      }
+      // Evaluate the string
+      return this.PATTERN_ESCAPED_CHARACTER.replace(value, this._unescapeCallback);
     }
-    return this.PATTERN_ESCAPED_CHARACTER.replace(value, this._unescapeCallback);
-  };
 
-  Unescaper.unescapeCharacter = function(value) {
-    var ch;
-    ch = String.fromCharCode;
-    switch (value.charAt(1)) {
-      case '0':
-        return ch(0);
-      case 'a':
-        return ch(7);
-      case 'b':
-        return ch(8);
-      case 't':
-        return "\t";
-      case "\t":
-        return "\t";
-      case 'n':
-        return "\n";
-      case 'v':
-        return ch(11);
-      case 'f':
-        return ch(12);
-      case 'r':
-        return ch(13);
-      case 'e':
-        return ch(27);
-      case ' ':
-        return ' ';
-      case '"':
-        return '"';
-      case '/':
-        return '/';
-      case '\\':
-        return '\\';
-      case 'N':
-        return ch(0x0085);
-      case '_':
-        return ch(0x00A0);
-      case 'L':
-        return ch(0x2028);
-      case 'P':
-        return ch(0x2029);
-      case 'x':
-        return Utils.utf8chr(Utils.hexDec(value.substr(2, 2)));
-      case 'u':
-        return Utils.utf8chr(Utils.hexDec(value.substr(2, 4)));
-      case 'U':
-        return Utils.utf8chr(Utils.hexDec(value.substr(2, 8)));
-      default:
-        return '';
+    // Unescapes a character that was found in a double-quoted string
+
+    // @param [String]       value An escaped character
+
+    // @return [String]      The unescaped character
+
+    static unescapeCharacter(value) {
+      var ch;
+      ch = String.fromCharCode;
+      switch (value.charAt(1)) {
+        case '0':
+          return ch(0);
+        case 'a':
+          return ch(7);
+        case 'b':
+          return ch(8);
+        case 't':
+          return "\t";
+        case "\t":
+          return "\t";
+        case 'n':
+          return "\n";
+        case 'v':
+          return ch(11);
+        case 'f':
+          return ch(12);
+        case 'r':
+          return ch(13);
+        case 'e':
+          return ch(27);
+        case ' ':
+          return ' ';
+        case '"':
+          return '"';
+        case '/':
+          return '/';
+        case '\\':
+          return '\\';
+        case 'N':
+          // U+0085 NEXT LINE
+          return ch(0x0085);
+        case '_':
+          // U+00A0 NO-BREAK SPACE
+          return ch(0x00A0);
+        case 'L':
+          // U+2028 LINE SEPARATOR
+          return ch(0x2028);
+        case 'P':
+          // U+2029 PARAGRAPH SEPARATOR
+          return ch(0x2029);
+        case 'x':
+          return Utils.utf8chr(Utils.hexDec(value.substr(2, 2)));
+        case 'u':
+          return Utils.utf8chr(Utils.hexDec(value.substr(2, 4)));
+        case 'U':
+          return Utils.utf8chr(Utils.hexDec(value.substr(2, 8)));
+        default:
+          return '';
+      }
     }
+
   };
 
+  // Regex fragment that matches an escaped character in
+  // a double quoted string.
+  Unescaper.PATTERN_ESCAPED_CHARACTER = new Pattern('\\\\([0abt\tnvfre "\\/\\\\N_LP]|x[0-9a-fA-F]{2}|u[0-9a-fA-F]{4}|U[0-9a-fA-F]{8})');
+
   return Unescaper;
 
-})();
+}).call(this);
 
 module.exports = Unescaper;