Reduce _.escape and _.unescape dependencies

lodash.js

@@ -64,6 +64,10 @@
       reEvaluate = /<%([\s\S]+?)%>/g,
       reInterpolate = /<%=([\s\S]+?)%>/g;
 
+  /** Used to match HTML entities and HTML characters */
+  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
+      reUnescapedHtml = /[&<>"']/g;
+
   /** Used to match leading whitespace and zeros to be removed */
   var reLeadingSpacesAndZeros = RegExp('^[' + whitespace + ']*0+(?=.$)');
 
@@ -127,6 +131,31 @@
     'writable': false
   };
 
+  /**
+   * Used to convert characters to HTML entities:
+   *
+   * Though the `>` character is escaped for symmetry, characters like `>` and `/`
+   * don't require escaping in HTML and have no special meaning unless they're part
+   * of a tag or an unquoted attribute value.
+   * http://mathiasbynens.be/notes/ambiguous-ampersands (under "semi-related fun fact")
+   */
+  var htmlEscapes = {
+    '&': '&amp;',
+    '<': '&lt;',
+    '>': '&gt;',
+    '"': '&quot;',
+    "'": '&#39;'
+  };
+
+  /** Used to convert HTML entities to characters */
+  var htmlUnescapes = {
+    '&amp;': '&',
+    '&lt;': '<',
+    '&gt;': '>',
+    '&quot;': '"',
+    '&#39;': "'"
+  };
+
   /** Used to determine if values are of the language type Object */
   var objectTypes = {
     'boolean': false,
@@ -1965,29 +1994,6 @@
       return nativeKeys(object);
     };
 
-    /**
-     * Used to convert characters to HTML entities:
-     *
-     * Though the `>` character is escaped for symmetry, characters like `>` and `/`
-     * don't require escaping in HTML and have no special meaning unless they're part
-     * of a tag or an unquoted attribute value.
-     * http://mathiasbynens.be/notes/ambiguous-ampersands (under "semi-related fun fact")
-     */
-    var htmlEscapes = {
-      '&': '&amp;',
-      '<': '&lt;',
-      '>': '&gt;',
-      '"': '&quot;',
-      "'": '&#39;'
-    };
-
-    /** Used to convert HTML entities to characters */
-    var htmlUnescapes = invert(htmlEscapes);
-
-    /** Used to match HTML entities and HTML characters */
-    var reEscapedHtml = RegExp('(' + keys(htmlUnescapes).join('|') + ')', 'g'),
-        reUnescapedHtml = RegExp('[' + keys(htmlEscapes).join('') + ']', 'g');
-
     /*--------------------------------------------------------------------------*/
 
     /**