X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Fcodec.h;h=7acd88f89008e6e50b72333f4437172907dd7b55;hp=5fb29db29b305577582e6ed56c58f3bda61d823c;hb=d2118ac101602cfe2d62fb7deb6ef3fcb0fe137b;hpb=dbda1bb7f44f289c9f1c5ba9741970ac264d8e5d

diff --git a/source/codec.h b/source/codec.h
index 5fb29db..7acd88f 100644
--- a/source/codec.h
+++ b/source/codec.h
@@ -28,6 +28,13 @@ with it.
 class StringCodec
 {
 public:
+	enum ErrorMode
+	{
+		THROW_ON_ERROR,
+		IGNORE_ERRORS,
+		REPLACE_ERRORS
+	};
+
 	/**
 	Base class for string encoder.  Each codec class should contain an Encoder
 	class derived from this.
@@ -71,11 +78,14 @@ public:
 
 		virtual ~Encoder() { }
 	protected:
-		Encoder() { }
+		Encoder(ErrorMode em=THROW_ON_ERROR): err_mode_(em) { }
 		void append(char c) { buffer_+=c; }
 		void append(const char *s, unsigned l) { buffer_.append(s, l); }
 		void append(const std::string &s) { buffer_+=s; }
+		void error(const std::string &);
+		virtual void append_replacement() { }
 	private:
+		ErrorMode err_mode_;
 		std::string buffer_;
 	};
 
@@ -92,30 +102,26 @@ public:
 
 		/**
 		Ensures that all input has been processed.  If this is not the case any
-		buffers are cleared and an exception is thrown,
+		buffers are cleared and an error is triggered.
 		*/
 		virtual void sync() { }
 
-		/**
-		Resets the decoder, clearing a possibly erroneus state.  Does not flush
-		the internal buffer.
-		*/
-		virtual void reset() { }
-
 		const std::wstring &get() const { return buffer_; }
 		unsigned size() const { return buffer_.size(); }
 		void flush() { buffer_.clear(); }
 		virtual ~Decoder() { }
 	protected:
-		Decoder() { }
+		Decoder(ErrorMode em): err_mode_(em) { }
 		void append(wchar_t c) { buffer_+=c; }
 		void append(const std::wstring &s) { buffer_+=s; }
+		void error(const std::string &);
 	private:
+		ErrorMode err_mode_;
 		std::wstring buffer_;
 	};
 
-	virtual Encoder *create_encoder() const =0;
-	virtual Decoder *create_decoder() const =0;
+	virtual Encoder *create_encoder(ErrorMode =THROW_ON_ERROR) const =0;
+	virtual Decoder *create_decoder(ErrorMode =THROW_ON_ERROR) const =0;
 	virtual bool    detect(const std::string &) const;
 	virtual ~StringCodec() { }
 protected: