--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/dwtxhelper/mangoicu/UEnumeration.d	Sun Jun 22 22:57:31 2008 +0200
@@ -0,0 +1,264 @@
+/*******************************************************************************
+
+        @file UEnumeration.d
+        
+        Copyright (c) 2004 Kris Bell
+        
+        This software is provided 'as-is', without any express or implied
+        warranty. In no event will the authors be held liable for damages
+        of any kind arising from the use of this software.
+        
+        Permission is hereby granted to anyone to use this software for any 
+        purpose, including commercial applications, and to alter it and/or 
+        redistribute it freely, subject to the following restrictions:
+        
+        1. The origin of this software must not be misrepresented; you must 
+           not claim that you wrote the original software. If you use this 
+           software in a product, an acknowledgment within documentation of 
+           said product would be appreciated but is not required.
+
+        2. Altered source versions must be plainly marked as such, and must 
+           not be misrepresented as being the original software.
+
+        3. This notice may not be removed or altered from any distribution
+           of the source.
+
+        4. Derivative works are permitted, but they must carry this notice
+           in full and credit the original source.
+
+
+                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+
+        @version        Initial version, November 2004      
+        @author         Kris
+
+        Note that this package and documentation is built around the ICU 
+        project (http://oss.software.ibm.com/icu/). Below is the license 
+        statement as specified by that software:
+
+
+                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+
+        ICU License - ICU 1.8.1 and later
+
+        COPYRIGHT AND PERMISSION NOTICE
+
+        Copyright (c) 1995-2003 International Business Machines Corporation and 
+        others.
+
+        All rights reserved.
+
+        Permission is hereby granted, free of charge, to any person obtaining a
+        copy of this software and associated documentation files (the
+        "Software"), to deal in the Software without restriction, including
+        without limitation the rights to use, copy, modify, merge, publish,
+        distribute, and/or sell copies of the Software, and to permit persons
+        to whom the Software is furnished to do so, provided that the above
+        copyright notice(s) and this permission notice appear in all copies of
+        the Software and that both the above copyright notice(s) and this
+        permission notice appear in supporting documentation.
+
+        THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+        OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+        MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+        OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+        HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
+        INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
+        FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+        NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+        WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+        Except as contained in this notice, the name of a copyright holder
+        shall not be used in advertising or otherwise to promote the sale, use
+        or other dealings in this Software without prior written authorization
+        of the copyright holder.
+
+        ----------------------------------------------------------------------
+
+        All trademarks and registered trademarks mentioned herein are the 
+        property of their respective owners.
+
+*******************************************************************************/
+
+module dwtx.dwthelper.mangoicu.UEnumeration;
+
+private import  dwtx.dwthelper.mangoicu.ICU;
+
+/*******************************************************************************
+
+        UEnumeration is returned by a number of ICU classes, for providing
+        access to such things as ULocale lists and so on,
+
+*******************************************************************************/
+
+class UEnumeration : ICU
+{
+        package Handle handle;
+
+        /***********************************************************************
+
+        ***********************************************************************/
+
+        this (Handle handle)
+        {
+                this.handle = handle;
+        }
+
+        /***********************************************************************
+        
+                Disposes of the storage used by a UEnumeration object
+
+        ***********************************************************************/
+
+        ~this ()
+        {
+                uenum_close (handle);
+        }
+
+        /***********************************************************************
+        
+                Returns the next element in the iterator's list.
+
+                If there are no more elements, returns NULL. If the 
+                iterator is out-of-sync with its service, status is 
+                set to U_ENUM_OUT_OF_SYNC_ERROR and NULL is returned. 
+                If the native service string is a UChar* string, it 
+                is converted to char* with the invariant converter. 
+                The result is terminated by (char)0. If the conversion 
+                fails (because a character cannot be converted) then 
+                status is set to U_INVARIANT_CONVERSION_ERROR and the 
+                return value is undefined (but non-NULL). 
+
+        ***********************************************************************/
+
+        uint count ()
+        {   
+                Error e;
+                
+                uint x = uenum_count (handle, e);
+                testError (e, "enumeration out of sync");    
+                return x;
+        }
+
+        /***********************************************************************
+                
+                Resets the iterator to the current list of service IDs.
+
+                This re-establishes sync with the service and rewinds 
+                the iterator to start at the first element
+
+        ***********************************************************************/
+
+        void reset ()
+        {       
+                ICU.Error e;
+
+                uenum_reset (handle, e);
+                testError (e, "failed to reset enumeration");                
+        }
+
+        /***********************************************************************
+        
+                Returns the next element in the iterator's list.
+
+                If there are no more elements, returns NULL. If the 
+                iterator is out-of-sync with its service, status is 
+                set to U_ENUM_OUT_OF_SYNC_ERROR and NULL is returned. 
+                If the native service string is a char* string, it is 
+                converted to UChar* with the invariant converter.
+
+        ***********************************************************************/
+
+        bool next (out char[] dst)
+        {       
+                ICU.Error e;
+                uint      len;
+
+                char* p = uenum_next (handle, &len, e);
+                testError (e, "failed to traverse enumeration");   
+                if (p)
+                    return dst = p[0..len], true;             
+                return false;
+        }
+
+        /***********************************************************************
+        
+                Returns the next element in the iterator's list.
+
+                If there are no more elements, returns NULL. If the 
+                iterator is out-of-sync with its service, status is 
+                set to U_ENUM_OUT_OF_SYNC_ERROR and NULL is returned. 
+                If the native service string is a char* string, it is 
+                converted to UChar* with the invariant converter.
+
+        ***********************************************************************/
+
+        bool next (inout wchar[] dst)
+        {       
+                ICU.Error e;
+                uint      len;
+
+                wchar* p = uenum_unext (handle, &len, e);
+                testError (e, "failed to traverse enumeration");   
+                if (p)
+                    return dst = p[0..len], true;             
+                return false;
+        }
+
+
+        /***********************************************************************
+        
+                Bind the ICU functions from a shared library. This is
+                complicated by the issues regarding D and DLLs on the
+                Windows platform
+
+        ***********************************************************************/
+
+        private static void* library;
+
+        /***********************************************************************
+
+        ***********************************************************************/
+
+        private static extern (C) 
+        {
+                void   function (Handle) uenum_close;
+                uint   function (Handle, inout Error) uenum_count;
+                void   function (Handle, inout Error) uenum_reset;
+                char*  function (Handle, uint*, inout Error) uenum_next;
+                wchar* function (Handle, uint*, inout Error) uenum_unext;
+        }
+
+        /***********************************************************************
+
+        ***********************************************************************/
+
+        static  FunctionLoader.Bind[] targets = 
+                [
+                {cast(void**) &uenum_close, "uenum_close"}, 
+                {cast(void**) &uenum_count, "uenum_count"}, 
+                {cast(void**) &uenum_reset, "uenum_reset"}, 
+                {cast(void**) &uenum_next,  "uenum_next"}, 
+                {cast(void**) &uenum_unext, "uenum_unext"}, 
+                ];
+
+        /***********************************************************************
+
+        ***********************************************************************/
+
+        static this ()
+        {
+                library = FunctionLoader.bind (icuuc, targets);
+        }
+
+        /***********************************************************************
+
+        ***********************************************************************/
+
+        static ~this ()
+        {
+                FunctionLoader.unbind (library);
+        }
+}