Sync BaseTool trunk (version r2670) into EDKII BaseTools.

[mirror_edk2.git] / BaseTools / Source / Python / Common / Parsing.py

diff --git a/BaseTools/Source/Python/Common/Parsing.py b/BaseTools/Source/Python/Common/Parsing.py
index 5bea6941fdf77e0a9047342cb20ed6927a0787df..584fc7f3c3a03645da1bdfc4bcfc531fc09f4ff9 100644 (file)
--- a/BaseTools/Source/Python/Common/Parsing.py
+++ b/BaseTools/Source/Python/Common/Parsing.py
@@ -1,7 +1,7 @@
 ## @file\r
 # This file is used to define common parsing related functions used in parsing INF/DEC/DSC process\r
 #\r
-# Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.<BR>\r
+# Copyright (c) 2008 - 2014, Intel Corporation. All rights reserved.<BR>\r
 # This program and the accompanying materials\r
 # are licensed and made available under the terms and conditions of the BSD License\r
 # which accompanies this distribution.  The full text of the license may be found at\r
@@ -877,3 +877,38 @@ def GenMetaDatSectionItem(Key, Value, List):
         List[Key] = [Value]\r
     else:\r
         List[Key].append(Value)\r
+\r
+## IsValidWord\r
+#\r
+# Check whether the word is valid.\r
+# <Word>   ::=  (a-zA-Z0-9_)(a-zA-Z0-9_-){0,} Alphanumeric characters with\r
+#               optional\r
+#               dash "-" and/or underscore "_" characters. No whitespace\r
+#               characters are permitted.\r
+#\r
+# @param Word:  The word string need to be checked.\r
+#\r
+def IsValidWord(Word):\r
+    if not Word:\r
+        return False\r
+    #\r
+    # The first char should be alpha, _ or Digit.\r
+    #\r
+    if not Word[0].isalnum() and \\r
+       not Word[0] == '_' and \\r
+       not Word[0].isdigit():\r
+        return False\r
+\r
+    LastChar = ''\r
+    for Char in Word[1:]:\r
+        if (not Char.isalpha()) and \\r
+           (not Char.isdigit()) and \\r
+           Char != '-' and \\r
+           Char != '_' and \\r
+           Char != '.':\r
+            return False\r
+        if Char == '.' and LastChar == '.':\r
+            return False\r
+        LastChar = Char\r
+\r
+    return True\r