Revision: 16681
          http://sourceforge.net/p/edk2/code/16681
Author:   jcarsey
Date:     2015-01-30 16:28:22 +0000 (Fri, 30 Jan 2015)
Log Message:
-----------
ShellPkg: Refactor Split search to generic function

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jaben Carsey <[email protected]>
Signed-off-by: Joe Peterson <[email protected]>
Reviewed-by: Shumin Qiu <[email protected]>
Reviewed-by: Tapan Shah <[email protected]>

Modified Paths:
--------------
    trunk/edk2/ShellPkg/Application/Shell/Shell.c
    trunk/edk2/ShellPkg/Application/Shell/Shell.h

Modified: trunk/edk2/ShellPkg/Application/Shell/Shell.c
===================================================================
--- trunk/edk2/ShellPkg/Application/Shell/Shell.c       2015-01-30 05:35:30 UTC 
(rev 16680)
+++ trunk/edk2/ShellPkg/Application/Shell/Shell.c       2015-01-30 16:28:22 UTC 
(rev 16681)
@@ -190,33 +190,6 @@
 }
 
 /**
-  Find a command line contains a split operation
-
-  @param[in] CmdLine      The command line to parse.
-
-  @retval                 A pointer to the | character in CmdLine or NULL if 
not present.
-**/
-CONST CHAR16*
-EFIAPI
-FindSplit(
-  IN CONST CHAR16 *CmdLine
-  )
-{
-  CONST CHAR16 *TempSpot;
-  TempSpot = NULL;
-  if (StrStr(CmdLine, L"|") != NULL) {
-    for (TempSpot = CmdLine ; TempSpot != NULL && *TempSpot != CHAR_NULL ; 
TempSpot++) {
-      if (*TempSpot == L'^' && *(TempSpot+1) == L'|') {
-        TempSpot++;
-      } else if (*TempSpot == L'|') {
-        break;
-      }
-    }
-  }
-  return (TempSpot);
-}
-
-/**
   Determine if a command line contains a split operation
 
   @param[in] CmdLine      The command line to parse.
@@ -236,7 +209,7 @@
 
   FirstQuote    = FindNextInstance (CmdLine, L"\"", TRUE);
   SecondQuote   = NULL;
-  TempSpot      = FindSplit(CmdLine);
+  TempSpot      = FindFirstCharacter(CmdLine, L"|", L'^');
 
   if (FirstQuote == NULL    || 
       TempSpot == NULL      || 
@@ -259,7 +232,7 @@
       continue;
     } else {
       FirstQuote = FindNextInstance (SecondQuote + 1, L"\"", TRUE);
-      TempSpot = FindSplit(TempSpot + 1);
+      TempSpot = FindFirstCharacter(TempSpot + 1, L"|", L'^');
       continue;
     } 
   }
@@ -1919,7 +1892,7 @@
   //
   // recurse to verify the next item
   //
-  TempSpot = FindSplit(CmdLine)+1;
+  TempSpot = FindFirstCharacter(CmdLine, L"|", L'^') + 1;
   return (VerifySplit(TempSpot));
 }
 
@@ -2921,3 +2894,38 @@
 
   return (Status);
 }
+
+/**
+  Return the pointer to the first occurance of any character from a list of 
characters
+
+  @param[in] String           the string to parse
+  @param[in] CharacterList    the list of character to look for
+  @param[in] EscapeCharacter  An escape character to skip
+
+  @return the location of the first character in the string
+  @retval CHAR_NULL no instance of any character in CharacterList was found in 
String
+**/
+CONST CHAR16*
+EFIAPI
+FindFirstCharacter(
+  IN CONST CHAR16 *String,
+  IN CONST CHAR16 *CharacterList,
+  IN CONST CHAR16 EscapeCharacter
+  )
+{
+  UINT32 WalkChar;
+  UINT32 WalkStr;
+
+  for (WalkStr = 0; WalkStr < StrLen(String); WalkStr++) {
+    if (String[WalkStr] == EscapeCharacter) {
+      WalkStr++;
+      continue;
+    }
+    for (WalkChar = 0; WalkChar < StrLen(CharacterList); WalkChar++) {
+      if (String[WalkStr] == CharacterList[WalkChar]) {
+        return (&String[WalkStr]);
+      }
+    }
+  }
+  return (String + StrLen(String));
+}
\ No newline at end of file

Modified: trunk/edk2/ShellPkg/Application/Shell/Shell.h
===================================================================
--- trunk/edk2/ShellPkg/Application/Shell/Shell.h       2015-01-30 05:35:30 UTC 
(rev 16680)
+++ trunk/edk2/ShellPkg/Application/Shell/Shell.h       2015-01-30 16:28:22 UTC 
(rev 16681)
@@ -2,7 +2,7 @@
   function definitions for internal to shell functions.
 
   (C) Copyright 2014, Hewlett-Packard Development Company, L.P.
-  Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2009 - 2015, 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
@@ -342,6 +342,23 @@
   IN EFI_SHELL_PARAMETERS_PROTOCOL  *ParamProtocol
   );
 
+/**
+  Return the pointer to the first occurance of any character from a list of 
characters
 
+  @param[in] String           the string to parse
+  @param[in] CharacterList    the list of character to look for
+  @param[in] EscapeCharacter  An escape character to skip
+
+  @return the location of the first character in the string
+  @retval CHAR_NULL no instance of any character in CharacterList was found in 
String
+**/
+CONST CHAR16*
+EFIAPI
+FindFirstCharacter(
+  IN CONST CHAR16 *String,
+  IN CONST CHAR16 *CharacterList,
+  IN CONST CHAR16 EscapeCharacter
+  );
+
 #endif //_SHELL_INTERNAL_HEADER_
 


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