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-rw-r--r--BaseTools/Source/Python/Common/GlobalData.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/BaseTools/Source/Python/Common/GlobalData.py b/BaseTools/Source/Python/Common/GlobalData.py
index 4a85a8e0db..3933e86cb9 100644
--- a/BaseTools/Source/Python/Common/GlobalData.py
+++ b/BaseTools/Source/Python/Common/GlobalData.py
@@ -52,7 +52,8 @@ gMacroDefPattern = re.compile("^(DEFINE|EDK_GLOBAL)[ \t]+")
gMacroNamePattern = re.compile("^{}$".format(_MacroNamePattern))
# definition for a GUID. used to create regular expressions below.
-_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}"
+_HexChar = r"[0-9a-fA-F]"
+_GuidPattern = r"{Hex}{{8}}-{Hex}{{4}}-{Hex}{{4}}-{Hex}{{4}}-{Hex}{{12}}".format(Hex=_HexChar)
## Regular expressions for GUID matching
gGuidPattern = re.compile(r'{}'.format(_GuidPattern))