Exception changes

[libs/core.git] / source / stringcodec / except.h

diff --git a/source/stringcodec/except.h b/source/stringcodec/except.h
new file mode 100644 (file)
index 0000000..6e25666
--- /dev/null
+++ b/source/stringcodec/except.h
@@ -0,0 +1,48 @@
+#ifndef MSP_STRINGCODEC_EXCEPT_H_
+#define MSP_STRINGCODEC_EXCEPT_H_
+
+#include <stdexcept>
+#include "ustring.h"
+
+namespace Msp {
+namespace StringCodec {
+
+/**
+Base class for codec errors.
+*/
+class codec_error: public std::runtime_error
+{
+public:
+       codec_error(const std::string &w): std::runtime_error(w) { }
+       virtual ~codec_error() throw() { }
+};
+
+
+/**
+Thrown when a codec can't encode the requested character.
+*/
+class invalid_character: public codec_error
+{
+public:
+       invalid_character(unichar, const std::string &);
+       virtual ~invalid_character() throw() { }
+};
+
+
+/**
+Thrown when a codec encounters a byte sequence it can't decode.
+*/
+class invalid_sequence: public codec_error
+{
+public:
+       invalid_sequence(const std::string::const_iterator &, const std::string::const_iterator &, const std::string &);
+       virtual ~invalid_sequence() throw() { }
+
+private:
+       std::string format_sequence(const std::string::const_iterator &, const std::string::const_iterator &);
+};
+
+} // namespace StringCodec
+} // namespace Msp
+
+#endif