Retire HiiLibGetNextLanguage() API from HII Library class.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8109 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/Compatibility/FrameworkHiiOnUefiHiiThunk/Strings.c

@@ -267,6 +267,47 @@ ConvertIso639LanguageToRfc3066Language (
   return NULL;
 }
 
+/**
+  Get next language from language code list (with separator ';').
+
+  If LangCode is NULL, then ASSERT.
+  If Lang is NULL, then ASSERT.
+
+  @param  LangCode    On input: point to first language in the list. On
+                                 output: point to next language in the list, or
+                                 NULL if no more language in the list.
+  @param  Lang           The first language in the list.
+
+**/
+VOID
+EFIAPI
+GetNextLanguage (
+  IN OUT CHAR8      **LangCode,
+  OUT CHAR8         *Lang
+  )
+{
+  UINTN  Index;
+  CHAR8  *StringPtr;
+
+  ASSERT (LangCode != NULL);
+  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;
+}
+
 /**
   Test if all of the characters in a string have corresponding font characters.