add Edit and HexEdit commands.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11436 6f19259b-4bc3-4df7-8a09-765794883524

ShellPkg/Library/UefiShellDebug1CommandsLib/Edit/Misc.c

@@ -0,0 +1,92 @@
+/** @file
+  Implementation of various string and line routines.
+
+  Copyright (c) 2005 - 2011, 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
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "TextEditor.h"
+#include "Misc.h"
+
+/**
+  Duplicate a EFI_EDITOR_LINE structure.
+
+  @param Src                    The line structure to copy from.
+
+  @retval NULL                  A memory allocation failed.
+  @return                       a pointer to the newly allcoated line.
+**/
+EFI_EDITOR_LINE *
+EFIAPI
+LineDup (
+  IN  EFI_EDITOR_LINE *Src
+  )
+{
+  EFI_EDITOR_LINE *Dest;
+
+  //
+  // allocate for the line structure
+  //
+  Dest = AllocateZeroPool (sizeof (EFI_EDITOR_LINE));
+  if (Dest == NULL) {
+    return NULL;
+  }
+  //
+  // allocate and set the line buffer
+  //
+  Dest->Buffer = CatSPrint (NULL, L"%s", Src->Buffer);
+  if (Dest->Buffer == NULL) {
+    FreePool (Dest);
+    return NULL;
+  }
+
+  //
+  // set the other structure members
+  //
+  Dest->Signature = LINE_LIST_SIGNATURE;
+  Dest->Size      = Src->Size;
+  Dest->TotalSize = Dest->Size;
+  Dest->Type      = Src->Type;
+  Dest->Link      = Src->Link;
+
+  return Dest;
+}
+
+/**
+  Free a EFI_EDITOR_LINE structure.
+
+  @param Src                    The line structure to free.
+**/
+VOID
+EFIAPI
+LineFree (
+  IN  EFI_EDITOR_LINE *Src
+  )
+{
+  if (Src == NULL) {
+    return ;
+  }
+  //
+  // free the line buffer and then the line structure itself
+  //
+  SHELL_FREE_NON_NULL (Src->Buffer);
+  SHELL_FREE_NON_NULL (Src);
+
+}
+
+
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