@@ -81,6 +81,13 @@ class KernRe:
         self.last_match = self.regex.search(string)
         return self.last_match
 
+    def finditer(self,  string):
+        """
+        Alias to re.finditer.
+        """
+
+        return self.regex.finditer(string)
+
     def findall(self, string):
         """
         Alias to re.findall.

@@ -116,6 +123,16 @@ class KernRe:
 
         return self.last_match.groups()
 
+#: Nested delimited pairs (brackets and parenthesis)
+DELIMITER_PAIRS = {
+    '{': '}',
+    '(': ')',
+    '[': ']',
+}
+
+#: compiled delimiters
+RE_DELIM = KernRe(r'[\{\}\[\]\(\)]')
+
 
 class NestedMatch:
     """

@@ -165,14 +182,6 @@ class NestedMatch:
     #
     #   FOO(arg1, arg2, arg3)
 
-    DELIMITER_PAIRS = {
-        '{': '}',
-        '(': ')',
-        '[': ']',
-    }
-
-    RE_DELIM = re.compile(r'[\{\}\[\]\(\)]')
-
     def _search(self, regex, line):
         """
         Finds paired blocks for a regex that ends with a delimiter.

@@ -202,13 +211,13 @@ class NestedMatch:
             escape = False
 
             d = line[offset - 1]
-            if d not in self.DELIMITER_PAIRS:
+            if d not in DELIMITER_PAIRS:
                 continue
 
-            end = self.DELIMITER_PAIRS[d]
+            end = DELIMITER_PAIRS[d]
             stack.append(end)
 
-            for match in self.RE_DELIM.finditer(line[offset:]):
+            for match in RE_DELIM.finditer(line[offset:]):
                 pos = match.start() + offset
 
                 d = line[pos]

@@ -229,8 +238,8 @@ class NestedMatch:
                     string_char = d
                     continue
 
-                if d in self.DELIMITER_PAIRS:
-                    end = self.DELIMITER_PAIRS[d]
+                if d in DELIMITER_PAIRS:
+                    end = DELIMITER_PAIRS[d]
 
                     stack.append(end)
                     continue