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Diffstat (limited to '')
-rw-r--r-- | comm/mailnews/intl/nsUnicodeToUTF7.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/comm/mailnews/intl/nsUnicodeToUTF7.h b/comm/mailnews/intl/nsUnicodeToUTF7.h new file mode 100644 index 0000000000..423bfa8198 --- /dev/null +++ b/comm/mailnews/intl/nsUnicodeToUTF7.h @@ -0,0 +1,69 @@ +/* -*- 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___ + +//---------------------------------------------------------------------- +// 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: + /** + * Class constructor. + */ + nsBasicUTF7Encoder(char aLastChar, char aEscChar); + NS_IMETHOD ConvertNoBuffNoErr(const char16_t* aSrc, int32_t* aSrcLength, + char* aDest, int32_t* aDestLength); + NS_IMETHOD FinishNoBuff(char* aDest, int32_t* aDestLength); + + 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 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___ */ |