/* File:			psqlodbc.h
 *
 * Description:		This file contains defines and declarations that are related to
 *					the entire driver.
 *
 * Comments:		See "readme.txt" for copyright and license information.
 */

#ifndef __UNICODE_SUPPORT_H__
#define __UNICODE_SUPPORT_H__

#include "psqlodbc.h"

#ifdef	UNICODE_SUPPORT
#define WCLEN sizeof(SQLWCHAR)
enum {
	CONVTYPE_UNKNOWN
	,WCSTYPE_UTF16_LE
	,WCSTYPE_UTF32_LE
	,C16TYPE_UTF16_LE
	};
char	*ucs2_to_utf8(const SQLWCHAR *ucs2str, SQLLEN ilen, SQLLEN *olen, BOOL tolower);
SQLULEN	utf8_to_ucs2_lf(const char * utf8str, SQLLEN ilen, BOOL lfconv, SQLWCHAR *ucs2str, SQLULEN buflen, BOOL errcheck);
int	get_convtype(void);
#define	utf8_to_ucs2(utf8str, ilen, ucs2str, buflen) utf8_to_ucs2_lf(utf8str, ilen, FALSE, ucs2str, buflen, FALSE)

SQLLEN bindcol_hybrid_estimate(const char *ldt, BOOL lf_conv, char **wcsbuf);
SQLLEN bindcol_hybrid_exec(SQLWCHAR *utf16, const char *ldt, size_t n, BOOL lf_conv, char **wcsbuf);
SQLLEN bindcol_localize_estimate(const char *utf8dt, BOOL lf_conv, char **wcsbuf);
SQLLEN bindcol_localize_exec(char *ldt, size_t n, BOOL lf_conv, char **wcsbuf);
SQLLEN bindpara_msg_to_utf8(const char *ldt, char **wcsbuf, SQLLEN used);
SQLLEN bindpara_wchar_to_msg(const SQLWCHAR *utf16, char **wcsbuf, SQLLEN used);

SQLLEN locale_to_sqlwchar(SQLWCHAR *utf16, const char *ldt, size_t n, BOOL lf_conv);
SQLLEN utf8_to_locale(char *ldt, const char * utf8dt, size_t n, BOOL lf_conv);
#endif /* UNICODE_SUPPORT */

#endif /* __UNICODE_SUPPORT_H__ */