1 files changed, 76 insertions, 0 deletions
diff --git a/ACE/ace/UTF16_Encoding_Converter.inl b/ACE/ace/UTF16_Encoding_Converter.inl
new file mode 100644
index 00000000000..1c716092092
--- /dev/null
+++ b/ACE/ace/UTF16_Encoding_Converter.inl
@@ -0,0 +1,76 @@
+/* -*- C++ -*- */
+// $Id$
+
+// ======================================================================
+//
+// The actual conversion methods are covered by the copyright information
+// below.
+// Chad Elliott 4/28/2005
+//
+// Copyright 2001-2004 Unicode, Inc.
+//
+// Limitations on Rights to Redistribute This Code
+//
+// Unicode, Inc. hereby grants the right to freely use the information
+// supplied in this file in the creation of products supporting the
+// Unicode Standard, and to make copies of this file in any form
+// for internal or external distribution as long as this notice
+// remains attached.
+//
+// ======================================================================
+
+ACE_BEGIN_VERSIONED_NAMESPACE_DECL
+
+ACE_INLINE bool
+ACE_UTF16_Encoding_Converter::is_legal_utf8 (const ACE_Byte* source,
+                                             size_t length) const
+{
+  ACE_Byte a;
+  const ACE_Byte* srcptr = source + length;
+
+  switch (length)
+    {
+    default:
+      return false;
+
+    // Everything else falls through when "true"...
+    case 4: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return false;
+    case 3: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return false;
+    case 2: if ((a = (*--srcptr)) > 0xBF) return false;
+
+    switch (*source)
+      {
+      // no fall-through in this inner switch
+      case 0xE0:
+        if (a < 0xA0)
+          return false;
+        break;
+      case 0xED:
+        if (a > 0x9F)
+          return false;
+        break;
+      case 0xF0:
+        if (a < 0x90)
+          return false;
+        break;
+      case 0xF4:
+        if (a > 0x8F)
+          return false;
+        break;
+      default:
+        if (a < 0x80)
+          return false;
+    }
+
+    case 1:
+      if (*source >= 0x80 && *source < 0xC2)
+        return false;
+    }
+
+  if (*source > 0xF4)
+    return false;
+
+  return true;
+}
+
+ACE_END_VERSIONED_NAMESPACE_DECL