1) Cleanup HiiLib, IfrSupportLib.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4661 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Library/HiiLib/HiiLanguage.c

@@ -0,0 +1,136 @@
+/** @file
+  Language related HII Library implementation.
+
+  Copyright (c) 2006, Intel Corporation<BR>
+  All rights reserved. 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 "InternalHiiLib.h"
+
+EFI_STATUS
+EFIAPI
+HiiLibGetCurrentLanguage (
+  OUT     CHAR8               *Lang
+  )
+{
+  EFI_STATUS  Status;
+  UINTN       Size;
+
+  ASSERT (Lang != NULL);
+
+  //
+  // Get current language setting
+  //
+  Size = RFC_3066_ENTRY_SIZE;
+  Status = gRT->GetVariable (
+                  L"PlatformLang",
+                  &gEfiGlobalVariableGuid,
+                  NULL,
+                  &Size,
+                  Lang
+                  );
+
+  if (EFI_ERROR (Status)) {
+    AsciiStrCpy (Lang, (CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLang));
+  }
+
+  return Status;
+}
+
+
+VOID
+EFIAPI
+HiiLibGetNextLanguage (
+  IN OUT CHAR8      **LangCode,
+  OUT CHAR8         *Lang
+  )
+{
+  UINTN  Index;
+  CHAR8  *StringPtr;
+
+  ASSERT (LangCode != NULL);
+  ASSERT (Lang != NULL);
+
+  Index = 0;
+  StringPtr = *LangCode;
+  while (StringPtr[Index] != 0 && StringPtr[Index] != ';') {
+    Index++;
+  }
+
+  CopyMem (Lang, StringPtr, Index);
+  Lang[Index] = 0;
+
+  if (StringPtr[Index] == ';') {
+    Index++;
+  }
+  *LangCode = StringPtr + Index;
+}
+
+
+CHAR8 *
+EFIAPI
+HiiLibGetSupportedLanguages (
+  IN EFI_HII_HANDLE           HiiHandle
+  )
+{
+  EFI_STATUS  Status;
+  UINTN       BufferSize;
+  CHAR8       *LanguageString;
+
+  ASSERT (HiiHandle != NULL);
+  ASSERT (IsHiiHandleRegistered (HiiHandle));
+  //
+  // Collect current supported Languages for given HII handle
+  //
+  BufferSize = 0x1000;
+  LanguageString = AllocatePool (BufferSize);
+  Status = mHiiStringProt->GetLanguages (mHiiStringProt, HiiHandle, LanguageString, &BufferSize);
+  
+  if (Status == EFI_BUFFER_TOO_SMALL) {
+    gBS->FreePool (LanguageString);
+    LanguageString = AllocatePool (BufferSize);
+    Status = mHiiStringProt->GetLanguages (mHiiStringProt, HiiHandle, LanguageString, &BufferSize);
+  }
+
+  if (EFI_ERROR (Status)) {
+    LanguageString = NULL;
+  }
+
+  return LanguageString;
+}
+
+
+UINT16
+EFIAPI
+HiiLibGetSupportedLanguageNumber (
+  IN EFI_HII_HANDLE           HiiHandle
+  )
+{
+  CHAR8   *Languages;
+  CHAR8   *LanguageString;
+  UINT16  LangNumber;
+  CHAR8   Lang[RFC_3066_ENTRY_SIZE];
+
+  Languages = HiiLibGetSupportedLanguages (HiiHandle);
+  if (Languages == NULL) {
+    return 0;
+  }
+
+  LangNumber = 0;
+  LanguageString = Languages;
+  while (*LanguageString != 0) {
+    HiiLibGetNextLanguage (&LanguageString, Lang);
+    LangNumber++;
+  }
+  gBS->FreePool (Languages);
+
+  return LangNumber;
+}