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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsUnicodeToUTF7_h___
+#define nsUnicodeToUTF7_h___
+
+#include "nsUCSupport.h"
+
+//----------------------------------------------------------------------
+// Class nsBasicUTF7Encoder [declaration]
+
+/**
+ * Basic class for a character set converter from Unicode to UTF-7.
+ *
+ * @created 03/Jun/1999
+ * @author Catalin Rotaru [CATA]
+ */
+class nsBasicUTF7Encoder : public nsEncoderSupport
+{
+public:
+
+ /**
+ * Class constructor.
+ */
+ nsBasicUTF7Encoder(char aLastChar, char aEscChar);
+
+protected:
+
+ int32_t mEncoding; // current encoding
+ uint32_t mEncBits;
+ int32_t mEncStep;
+ char mLastChar;
+ char mEscChar;
+
+ nsresult ShiftEncoding(int32_t aEncoding, char * aDest,
+ int32_t * aDestLength);
+ nsresult EncodeDirect(const char16_t * aSrc, int32_t * aSrcLength,
+ char * aDest, int32_t * aDestLength);
+ nsresult EncodeBase64(const char16_t * aSrc, int32_t * aSrcLength,
+ char * aDest, int32_t * aDestLength);
+ char ValueToChar(uint32_t aValue);
+ virtual bool DirectEncodable(char16_t aChar);
+
+ //--------------------------------------------------------------------
+ // Subclassing of nsEncoderSupport class [declaration]
+
+ NS_IMETHOD ConvertNoBuffNoErr(const char16_t * aSrc, int32_t * aSrcLength,
+ char * aDest, int32_t * aDestLength);
+ NS_IMETHOD FinishNoBuff(char * aDest, int32_t * aDestLength);
+ NS_IMETHOD Reset();
+};
+
+//----------------------------------------------------------------------
+// Class nsUnicodeToUTF7 [declaration]
+
+/**
+ * A character set converter from Unicode to UTF-7.
+ *
+ * @created 03/Jun/1999
+ * @author Catalin Rotaru [CATA]
+ */
+class nsUnicodeToUTF7 : public nsBasicUTF7Encoder
+{
+public:
+
+ /**
+ * Class constructor.
+ */
+ nsUnicodeToUTF7();
+
+protected:
+
+ virtual bool DirectEncodable(char16_t aChar);
+};
+
+#endif /* nsUnicodeToUTF7_h___ */