Added wstring support

1 files changed, 156 insertions, 0 deletions

diff --git a/cppe/include/IceE/Unicode.h b/cppe/include/IceE/Unicode.h
new file mode 100644
index 00000000000..a09c0b8c6f1
--- /dev/null
+++ b/cppe/include/IceE/Unicode.h
@@ -0,0 +1,156 @@
+// **********************************************************************
+//
+// Copyright (c) 2003-2006 ZeroC, Inc. All rights reserved.
+//
+// This copy of Ice-E is licensed to you under the terms described in the
+// ICEE_LICENSE file included in this distribution.
+//
+// **********************************************************************
+
+#ifndef ICEE_UNICODE_H
+#define ICEE_UNICODE_H
+
+#include <IceE/Config.h>
+#include <IceE/Exception.h>
+
+namespace IceUtil
+{
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1300)
+
+//
+// With Visual C++ 7.x, wchar_t is either a typedef unsigned short or a 
+// native type (when /Zc:wchar_t is used).
+// Since wstring is a typedef basic_string<wchar_t>, its type is also 
+// different depending on whether /Zc:wchar_t is used or not.
+//
+// With Visual C++ 7.x, the default is typedef; with Visual C++ 8.0,
+// the default is native type.
+//
+// Ice is always built with the default, but provides wstringToString() 
+// and stringToWstring() implementations for both flavors of wstring.
+//
+
+#   if defined(_NATIVE_WCHAR_T_DEFINED)
+ICE_API std::string wstringToString(const std::wstring&);
+
+#      if _MSC_VER >= 1400
+//
+// Building or using with VC8
+//
+ICE_API std::wstring stringToWstring(const std::string&);
+ICE_API std::string wstringToString(const std::basic_string<unsigned short>&);
+ICE_API std::basic_string<unsigned short> stringToTypedefWstring(const std::string&);
+#     else
+//
+// Using a VC7.x build with the non-default /Zc
+//
+ICE_API std::wstring stringToNativeWstring(const std::string&);
+inline std::wstring 
+stringToWstring(const std::string& str)
+{
+    return stringToNativeWstring(str);
+}
+#     endif
+
+#   else
+ICE_API std::string wstringToString(const std::wstring&);
+
+#      if _MSC_VER < 1400
+//
+// Building or using with VC7.x
+//
+ICE_API std::wstring stringToWstring(const std::string&);
+ICE_API std::string wstringToString(const std::basic_string<__wchar_t>&);
+ICE_API std::basic_string<__wchar_t> stringToNativeWstring(const std::string&);
+#      else
+//
+// Using a VC8.x build the non-default /Zc
+//
+ICE_API std::wstring stringToTypedefWstring(const std::string&);
+inline std::wstring 
+stringToWstring(const std::string& str)
+{
+    return stringToTypedefWstring(str);
+}
+#      endif
+#   endif
+
+#else
+
+ICE_API std::string wstringToString(const std::wstring&);
+ICE_API std::wstring stringToWstring(const std::string&);
+
+#endif
+
+
+//
+// Converts UTF-8 byte-sequences to and from UTF-16 or UTF-32 (with native
+// endianness) depending on sizeof(wchar_t).
+//
+// These are thin wrappers over the UTF8/16/32 converters provided by 
+// unicode.org
+//
+//
+// TODO: provide the same support for /Zc:wchar_t as the functions above
+//
+
+enum ConversionResult
+{
+	conversionOK, 		/* conversion successful */
+	sourceExhausted,	/* partial character in source, but hit end */
+	targetExhausted,	/* insuff. room in target for conversion */
+	sourceIllegal		/* source sequence is illegal/malformed */
+};
+
+
+enum ConversionFlags 
+{
+    strictConversion = 0,
+    lenientConversion
+};
+
+typedef unsigned char Byte;
+
+ICE_API bool
+isLegalUTF8Sequence(const Byte* source, const Byte* end);
+
+ICE_API ConversionResult 
+convertUTFWstringToUTF8(const wchar_t*& sourceStart, const wchar_t* sourceEnd, 
+			Byte*& targetStart, Byte* targetEnd, ConversionFlags flags);
+
+ICE_API ConversionResult
+convertUTF8ToUTFWstring(const Byte*& sourceStart, const Byte* sourceEnd, 
+			wchar_t*& targetStart, wchar_t* targetEnd, ConversionFlags flags);
+
+ICE_API ConversionResult 
+convertUTF8ToUTFWstring(const Byte*& sourceStart, const Byte* sourceEnd, 
+			std::wstring& target, ConversionFlags flags);
+
+
+
+
+//
+// UTFConversionException is raised by wstringToString() or stringToWstring()
+// to report a conversion error 
+//
+class ICE_API UTFConversionException : public Exception
+{
+public:
+    
+    UTFConversionException(const char*, int, ConversionResult);
+    virtual const std::string ice_name() const;
+    virtual std::string toString() const;
+    virtual Exception* ice_clone() const;
+    virtual void ice_throw() const;
+
+    ConversionResult conversionResult() const;
+private:
+
+    const ConversionResult _conversionResult;
+    static const char* _name;    
+};
+
+}
+
+#endif