Issue #7622: Improve the split(), rsplit(), splitlines() and replace()
methods of bytes, bytearray and unicode objects by using a common
implementation based on stringlib's fast search. Patch by Florent Xicluna.
diff --git a/Objects/stringlib/README.txt b/Objects/stringlib/README.txt
index d948386..c884ec3 100644
--- a/Objects/stringlib/README.txt
+++ b/Objects/stringlib/README.txt
@@ -28,3 +28,12 @@
returns the pointer to the character data for the given string
object (which must be of the right type)
+
+int STRINGLIB_CHECK_EXACT(PyObject *)
+
+ returns true if the object is an instance of our type, not a subclass.
+
+STRINGLIB_MUTABLE
+
+ Must be 0 or 1 to tell the cpp macros in stringlib code if the object
+ being operated on is mutable or not.