gMacroNamePattern = re.compile("^{}$".format(_MacroNamePattern))\r
\r
# definition for a GUID. used to create regular expressions below.\r
-_GuidPattern = r"[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}"\r
+_HexChar = r"[0-9a-fA-F]"\r
+_GuidPattern = r"{Hex}{{8}}-{Hex}{{4}}-{Hex}{{4}}-{Hex}{{4}}-{Hex}{{12}}".format(Hex=_HexChar)\r
\r
## Regular expressions for GUID matching\r
gGuidPattern = re.compile(r'{}'.format(_GuidPattern))\r