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%%	options

copyright owner	=	Dirk Krause
copyright year	=	2018-xxxx
SPDX-License-Identifier:	BSD-3-Clause

%%	header

/**	@file	dk4rec27.h	Recoding from char to dkChar.
*/

#ifndef	DK4CONF_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4conf.h"
#else
#include <dktools-4/dk4conf.h>
#endif
#endif

#ifndef	DK4TYPES_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4types.h"
#else
#include <dktools-4/dk4types.h>
#endif
#endif

#ifndef	DK4ERROR_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4error.h"
#else
#include <dktools-4/dk4error.h>
#endif
#endif

#ifndef	DK4ENC_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4enc.h"
#else
#include <dktools-4/dk4enc.h>
#endif
#endif



#ifdef	__cplusplus
extern "C" {
#endif

/**	Recode from char string to dkChar string.
	@param	dstb	Destination buffer.
	@param	szdstb	Destination buffer size (number of dkChar).
	@param	dke		Encoding for dkChar.
	@param	src		Source string.
	@param	se		Source string encoding.
	@param	erp		Error report, may be NULL.
	@return	1 on success, 0 on error.
*/
int
dk4recode_c8_to_dk(
	dkChar			*dstb,
	size_t			 szdstb,
	int				 dke,
	char	const	*src,
	int				 se,
	dk4_er_t		*erp
);

#ifdef	__cplusplus
}
#endif


/* vim: set ai sw=4 ts=4 : */

%%	module

#ifndef	DK4STR8_H_INCLUDED
#include "dk4str8.h"
#endif

#ifndef	DK4REC_H_INCLUDED
#include "dk4rec.h"
#endif


#ifndef	DK4UNUSED_H_INCLUDED
#include "dk4unused.h"
#endif

#if	DK4_HAVE_ASSERT_H
#ifndef	ASSERT_H_INCLUDED
#include <assert.h>
#define	ASSERT_H_INCLUDED 1
#endif
#endif

int
dk4recode_c8_to_dk(
	dkChar			*dstb,
	size_t			 szdstb,
#if DK4_CHAR_SIZE == 1
	int				 dke,
#else
	int				 DK4_ARG_UNUSED(dke),
#endif
	char	const	*src,
	int				 se,
	dk4_er_t		*erp
)
{
	int		 back	= 0;
#if DK4_CHAR_SIZE > 1
	DK4_UNUSED_ARG(dke)
#endif
#if	DK4_USE_ASSERT
  assert(NULL != dstb);
  assert(0 < szdstb);
  assert(NULL != src);
#endif
	if ((NULL != dstb) && (NULL != src) && (0 < szdstb)) {
#if	DK4_CHAR_SIZE > 1
#if	DK4_CHAR_SIZE > 2
		switch (se) {
			case DK4_ENCODING_PLAIN : {
				back = dk4recode_ascii_to_c32(dstb, szdstb, src, erp);
			} break;
			case DK4_ENCODING_WIN1252 : {
				back = dk4recode_ansi_to_c32(dstb, szdstb, src, erp);
			} break;
			case DK4_ENCODING_UTF8 : {
				back = dk4recode_utf8_to_c32(dstb, szdstb, src, erp);
			} break;
			default : {
				dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
			} break;
		}
#else
		switch (se) {
			case DK4_ENCODING_PLAIN : {
				back = dk4recode_ascii_to_utf16(dstb, szdstb, src, erp);
			} break;
			case DK4_ENCODING_WIN1252 : {
				back = dk4recode_ansi_to_utf16(dstb, szdstb, src, erp);
			} break;
			case DK4_ENCODING_UTF8 : {
				back = dk4recode_utf8_to_utf16(dstb, szdstb, src, erp);
			} break;
			default : {
				dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
			} break;
		}
#endif
#else
		if (dke == se) {
			back = dk4str8_cpy_s(dstb, szdstb, src, erp);
		}
		else {
			switch (dke) {
				case DK4_ENCODING_PLAIN : {
					switch (se) {
						case DK4_ENCODING_WIN1252 : {
							back = dk4recode_ansi_to_ascii(
								dstb, szdstb, src, erp
							);
						} break;
						case DK4_ENCODING_UTF8 : {
							back = dk4recode_utf8_to_ascii(
								dstb, szdstb, src, erp
							);
						} break;
						default : {
							dk4error_set_simple_error_code(
								erp, DK4_E_INVALID_ARGUMENTS
							);
						} break;
					}
				} break;
				case DK4_ENCODING_WIN1252 : {
					switch (se) {
						case DK4_ENCODING_PLAIN : {
							back = dk4recode_ascii_to_ansi(
								dstb, szdstb, src, erp
							);
						} break;
						case DK4_ENCODING_UTF8 : {
							back = dk4recode_utf8_to_ansi(
								dstb, szdstb, src, erp
							);
						} break;
						default : {
							dk4error_set_simple_error_code(
								erp, DK4_E_INVALID_ARGUMENTS
							);
						} break;
					}
				} break;
				case DK4_ENCODING_UTF8 : {
					switch (se) {
						case DK4_ENCODING_PLAIN : {
							back = dk4recode_ascii_to_utf8(
								dstb, szdstb, src, erp
							);
						} break;
						case DK4_ENCODING_WIN1252 : {
							back = dk4recode_ansi_to_utf8(
								dstb, szdstb, src, erp
							);
						} break;
						default : {
							dk4error_set_simple_error_code(
								erp, DK4_E_INVALID_ARGUMENTS
							);
						} break;
					}
				} break;
				default : {
					dk4error_set_simple_error_code(erp,DK4_E_INVALID_ARGUMENTS);
				} break;
			}
		}
#endif
	}
	else {
		dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
	}
	return back;
}



/* vim: set ai sw=4 ts=4 : */