From 018f7b827fa4def3476f76cdf1d6400d4a8e6ebc Mon Sep 17 00:00:00 2001
From: "Carsey, Jaben" </o=Intel/ou=Americas01/cn=Workers/cn=Carsey, Jaben>
Date: Sat, 17 Mar 2018 07:27:44 +0800
Subject: [PATCH] BaseTools: Use precompiled RegExp

avoid recompiling the regular expression for each use in a while loop

Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>
---
 BaseTools/Source/Python/AutoGen/UniClassObject.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/BaseTools/Source/Python/AutoGen/UniClassObject.py b/BaseTools/Source/Python/AutoGen/UniClassObject.py
index 856d19cda2..5b674dfbc2 100644
--- a/BaseTools/Source/Python/AutoGen/UniClassObject.py
+++ b/BaseTools/Source/Python/AutoGen/UniClassObject.py
@@ -4,7 +4,7 @@
 #
 # Copyright (c) 2014 Hewlett-Packard Development Company, L.P.<BR>
 #
-# Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
 # This program and the accompanying materials
 # are licensed and made available under the terms and conditions of the BSD License
 # which accompanies this distribution.  The full text of the license may be found at
@@ -24,6 +24,7 @@ from Common.BuildToolError import *
 from Common.String import GetLineNo
 from Common.Misc import PathClass
 from Common.LongFilePathSupport import LongFilePath
+from Common.GlobalData import *
 ##
 # Static definitions
 #
@@ -436,11 +437,11 @@ class UniFileClassObject(object):
             while (StartPos != -1):
                 EndPos = Line.find(u'\\', StartPos + 1, StartPos + 7)
                 if EndPos != -1 and EndPos - StartPos == 6 :
-                    if re.match('[a-fA-F0-9]{4}', Line[StartPos + 2 : EndPos], re.UNICODE):
+                    if g4HexChar.match(Line[StartPos + 2 : EndPos], re.UNICODE):
                         EndStr = Line[EndPos: ]
                         UniStr = ('\u' + (Line[StartPos + 2 : EndPos])).decode('unicode_escape')
                         if EndStr.startswith(u'\\x') and len(EndStr) >= 7:
-                            if EndStr[6] == u'\\' and re.match('[a-fA-F0-9]{4}', EndStr[2 : 6], re.UNICODE):
+                            if EndStr[6] == u'\\' and g4HexChar.match(EndStr[2 : 6], re.UNICODE):
                                 Line = Line[0 : StartPos] + UniStr + EndStr
                         else:
                             Line = Line[0 : StartPos] + UniStr + EndStr[1:]
-- 
2.39.2