#2834: Change re module semantics, so that str and bytes mixing is forbidden,
and str (unicode) patterns get full unicode matching by default. The re.ASCII
flag is also introduced to ask for ASCII matching instead.
diff --git a/Lib/sre_constants.py b/Lib/sre_constants.py
index 94962cb..6cf69c3 100644
--- a/Lib/sre_constants.py
+++ b/Lib/sre_constants.py
@@ -207,9 +207,10 @@
SRE_FLAG_LOCALE = 4 # honour system locale
SRE_FLAG_MULTILINE = 8 # treat target as multiline string
SRE_FLAG_DOTALL = 16 # treat target as a single string
-SRE_FLAG_UNICODE = 32 # use unicode locale
+SRE_FLAG_UNICODE = 32 # use unicode "locale"
SRE_FLAG_VERBOSE = 64 # ignore whitespace and comments
SRE_FLAG_DEBUG = 128 # debugging
+SRE_FLAG_ASCII = 256 # use ascii "locale"
# flags for INFO primitive
SRE_INFO_PREFIX = 1 # has prefix