Mercurial > illumos > onarm
view usr/src/cmd/man/src/util/nsgmls.src/include/CodingSystem.h @ 4:1a15d5aaf794
synchronized with onnv_86 (6202) in onnv-gate
author | Koji Uno <koji.uno@sun.com> |
---|---|
date | Mon, 31 Aug 2009 14:38:03 +0900 |
parents | c9caec207d52 |
children |
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// Copyright (c) 1994 James Clark // See the file COPYING for copying permission. #pragma ident "%Z%%M% %I% %E% SMI" #ifndef CodingSystem_INCLUDED #define CodingSystem_INCLUDED 1 #ifdef __GNUG__ #pragma interface #endif #include "types.h" #include "Boolean.h" #include "StringC.h" #include "OutputByteStream.h" #include <stddef.h> #ifdef SP_NAMESPACE namespace SP_NAMESPACE { #endif class SP_API Decoder { public: Decoder(unsigned minBytesPerChar = 1); virtual ~Decoder(); virtual size_t decode(Char *, const char *, size_t, const char **) = 0; virtual Boolean convertOffset(unsigned long &offset) const; // Decoder assumes that for every decoded Char there must be at least // minBytesPerChar bytes unsigned minBytesPerChar() const; protected: unsigned minBytesPerChar_; }; class SP_API Encoder { public: class SP_API Handler { public: virtual void handleUnencodable(Char, OutputByteStream *) = 0; }; Encoder(); virtual ~Encoder(); virtual void output(const Char *, size_t, OutputByteStream *) = 0; // This outputs a byte order mark with Unicode. virtual void startFile(OutputByteStream *); virtual void output(Char *, size_t, OutputByteStream *); virtual void setUnencodableHandler(Handler *); virtual void handleUnencodable(Char, OutputByteStream *); }; class SP_API RecoveringEncoder : public Encoder { public: RecoveringEncoder(); void setUnencodableHandler(Handler *); void handleUnencodable(Char, OutputByteStream *); private: Handler *unencodableHandler_; }; class SP_API InputCodingSystem { public: virtual ~InputCodingSystem(); virtual Decoder *makeDecoder() const = 0; StringC convertIn(const char *) const; virtual Boolean isIdentity() const; }; class SP_API OutputCodingSystem { public: virtual ~OutputCodingSystem(); virtual Encoder *makeEncoder() const = 0; virtual unsigned fixedBytesPerChar() const; String<char> convertOut(const StringC &) const; }; class SP_API CodingSystem : public InputCodingSystem, public OutputCodingSystem { }; inline unsigned Decoder::minBytesPerChar() const { return minBytesPerChar_; } #ifdef SP_NAMESPACE } #endif #endif /* not CodingSystem_INCLUDED */