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%%	options

copyright owner	=	Dirk Krause
copyright year	=	2015-xxxx
SPDX-License-Identifier:	BSD-3-Clause



%%	header

/**	@file
	Simple conversion from char to dkChar.

	CRT on Windows: Not used.
*/

#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

#ifdef __cplusplus
extern "C" {
#endif

/**	Recode string from ASCII (0x00 to 0x7F) to dkChar.
	Use this function only for real ASCII source strings with characters
	in range 0x00 to 0x7F (i.e. to convert numbers, dates, or
	english text).
	@param	dstb	Destination buffer.
	@param	szdstb	Size of destination buffer (number of dkChar).
	@param	src	Source string to convert.
	@param	erp	Error report, may be NULL.
	@return	1 on success, 0 on error.
	
	Error codes:
	- DK4_E_INVALID_ARGUMENTS<br>
	  if dstb or src is NULL or szdstb is 0,
	- DK4_E_BUFFER_TOO_SMALL<br>
	  if the dstb buffer is too small.
*/
int
dk4recode_char_to_dk(
  dkChar *dstb, size_t szdstb, const char *src, dk4_er_t *erp
);

#ifdef __cplusplus
}
#endif


%%	module

#include "dk4conf.h"
#include "dk4rec22.h"

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

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


$!trace-include



int
dk4recode_char_to_dk(
  dkChar *dstb, size_t szdstb, const char *src, dk4_er_t *erp
)
{
  int		 back = 0;
#if	DK4_USE_ASSERT
  assert(NULL != dstb);
  assert(0 < szdstb);
  assert(NULL != src);
#endif
  if ((NULL != dstb) && (NULL != src) && (0 < szdstb)) {
    if (dk4str8_len(src) < szdstb) {
      while ('\0' != *src) {
        *(dstb++) = (dkChar)((unsigned char)(*(src++)));
      }
      *dstb = dkT('\0');
      back = 1;
    } else {
      dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
}