/* ================================================================ */

/*

File:   ConvertUTF7.h

Author: David B. Goldsmith

Copyright (C) 1994 Taligent, Inc. All rights reserved.

This code is copyrighted. Under the copyright laws, this code may not

be copied, in whole or part, without prior written consent of Taligent. 

Taligent grants the right to use this code as long as this ENTIRE

copyright notice is reproduced in the code.  The code is provided

AS-IS, AND TALIGENT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR

IMPLIED, INCLUDING, BUT NOT LIMITED TO IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT

WILL TALIGENT BE LIABLE FOR ANY DAMAGES WHATSOEVER (INCLUDING,

WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS

INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY

LOSS) ARISING OUT OF THE USE OR INABILITY TO USE THIS CODE, EVEN

IF TALIGENT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF

LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE

LIMITATION MAY NOT APPLY TO YOU.

RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the

government is subject to restrictions as set forth in subparagraph

(c)(l)(ii) of the Rights in Technical Data and Computer Software

clause at DFARS 252.227-7013 and FAR 52.227-19.

This code may be protected by one or more U.S. and International

Patents.

TRADEMARKS: Taligent and the Taligent Design Mark are registered

trademarks of Taligent, Inc.

*/

/* ================================================================ */

/* ================================================================ */

/*      The following definitions are compiler-specific.

        I would use wchar_t for UCS2/UTF16, except that the C standard

        does not guarantee that it has at least 16 bits, so wchar_t is

        no more portable than unsigned short!

*/

typedef unsigned short  UCS2;

/* ================================================================ */

/*      Each of these routines converts the text between *sourceStart and 

sourceEnd, putting the result into the buffer between *targetStart and

targetEnd. Note: the end pointers are *after* the last item: e.g. 

*(sourceEnd - 1) is the last item.

        The return result indicates whether the conversion was successful,

and if not, whether the problem was in the source or target buffers.

        After the conversion, *sourceStart and *targetStart are both

updated to point to the end of last text successfully converted in

the respective buffers.

		In ConvertUCS2toUTF7, optional indicates whether UTF-7 optional

characters should be directly encoded, and verbose controls whether the

shift-out character, "-", is always emitted at the end of a shifted

sequence.

*/

#if !defined(__E32STD_H__) // added by DPB

#include <e32std.h> // added by DPB

#endif // added by DPB

typedef enum {

        ok,                             /* conversion successful */

        sourceCorrupt,          /* source contains invalid UTF-7 */

        targetExhausted         /* insuff. room in target for conversion */

} ConversionResult;

IMPORT_C ConversionResult        ConvertUCS2toUTF7 ( // added by DPB

//extern ConversionResult        ConvertUCS2toUTF7 ( // commented out by DPB

                UCS2** sourceStart, UCS2* sourceEnd, 

                char** targetStart, char* targetEnd,

                int optional, int verbose);

IMPORT_C ConversionResult        ConvertUTF7toUCS2 ( // added by DPB

//extern ConversionResult        ConvertUTF7toUCS2 ( // commented out by DPB

                char** sourceStart, char* sourceEnd, 

                UCS2** targetStart, UCS2* targetEnd);

/* ================================================================ */