/* $NetBSD: citrus_stdenc_template.h,v 1.4 2008/02/09 14:56:20 junyoung Exp $ */

/* $NetBSD: citrus_stdenc_template.h,v 1.4 2008/02/09 14:56:20 junyoung Exp $ */

/*-
* Copyright (c)2003 Citrus Project,
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

/*
* CAUTION: THIS IS NOT STANDALONE FILE
*
* function templates of iconv standard encoding handler for each encodings.
*
*/

/*
* macros
*/

#undef _TO_EI
#undef _CE_TO_EI
#undef _TO_STATE
#define _TO_EI(_cl_) ((_ENCODING_INFO*)(_cl_))
#define _CE_TO_EI(_ce_) (_TO_EI((_ce_)->ce_closure))
#define _TO_STATE(_ps_) ((_ENCODING_STATE*)(_ps_))

/* ----------------------------------------------------------------------
* templates for public functions
*/

int
_FUNCNAME(stdenc_getops)(struct _citrus_stdenc_ops *ops, size_t lenops,
uint32_t expected_version)
{
if (expected_version<_CITRUS_STDENC_ABI_VERSION || lenops<sizeof(*ops))
return (EINVAL);

memcpy(ops, &_FUNCNAME(stdenc_ops), sizeof(_FUNCNAME(stdenc_ops)));

return (0);
}

static int
_FUNCNAME(stdenc_init)(struct _citrus_stdenc * __restrict ce,
const void * __restrict var, size_t lenvar,
struct _citrus_stdenc_traits * __restrict et)
{
int ret;
_ENCODING_INFO *ei;

ei = NULL;
if (sizeof(_ENCODING_INFO) > 0) {
ei = calloc(1, sizeof(_ENCODING_INFO));
if (ei == NULL) {
return errno;
}
}

ret = _FUNCNAME(encoding_module_init)(ei, var, lenvar);
if (ret) {
free((void *)ei);
return ret;
}

ce->ce_closure = ei;
et->et_state_size = sizeof(_ENCODING_STATE);
et->et_mb_cur_max = _ENCODING_MB_CUR_MAX(_CE_TO_EI(ce));

return 0;
}

static void
_FUNCNAME(stdenc_uninit)(struct _citrus_stdenc * __restrict ce)
{
if (ce) {
_FUNCNAME(encoding_module_uninit)(_CE_TO_EI(ce));
free(ce->ce_closure);
}
}

static int
_FUNCNAME(stdenc_init_state)(struct _citrus_stdenc * __restrict ce,
void * __restrict ps)
{
_FUNCNAME(init_state)(_CE_TO_EI(ce), _TO_STATE(ps));

return 0;
}

static int
_FUNCNAME(stdenc_mbtocs)(struct _citrus_stdenc * __restrict ce,
_citrus_csid_t * __restrict csid,
_citrus_index_t * __restrict idx,
const char ** __restrict s, size_t n,
void * __restrict ps, size_t * __restrict nresult)
{
int ret;
wchar_t wc;

_DIAGASSERT(nresult != NULL);

ret = _FUNCNAME(mbrtowc_priv)(_CE_TO_EI(ce), &wc, s, n,
_TO_STATE(ps), nresult);

if (!ret && *nresult != (size_t)-2)
_FUNCNAME(stdenc_wctocs)(_CE_TO_EI(ce), csid, idx, wc);

return ret;
}

static int
_FUNCNAME(stdenc_cstomb)(struct _citrus_stdenc * __restrict ce,
char * __restrict s, size_t n,
_citrus_csid_t csid, _citrus_index_t idx,
void * __restrict ps, size_t * __restrict nresult)
{
int ret;
wchar_t wc;

_DIAGASSERT(nresult != NULL);

wc = 0;

if (csid != _CITRUS_CSID_INVALID) {
ret = _FUNCNAME(stdenc_cstowc)(_CE_TO_EI(ce), &wc, csid, idx);
if (ret)
return ret;
}

return _FUNCNAME(wcrtomb_priv)(_CE_TO_EI(ce), s, n, wc, _TO_STATE(ps),
nresult);
}

static int
_FUNCNAME(stdenc_mbtowc)(struct _citrus_stdenc * __restrict ce,
_citrus_wc_t * __restrict wc,
const char ** __restrict s, size_t n,
void * __restrict ps, size_t * __restrict nresult)
{
return _FUNCNAME(mbrtowc_priv)(_CE_TO_EI(ce), wc, s, n,
_TO_STATE(ps), nresult);
}

static int
_FUNCNAME(stdenc_wctomb)(struct _citrus_stdenc * __restrict ce,
char * __restrict s, size_t n, _citrus_wc_t wc,
void * __restrict ps, size_t * __restrict nresult)
{
return _FUNCNAME(wcrtomb_priv)(_CE_TO_EI(ce), s, n, wc, _TO_STATE(ps),
nresult);
}

static int
_FUNCNAME(stdenc_put_state_reset)(struct _citrus_stdenc * __restrict ce,
char * __restrict s, size_t n,
void * __restrict ps,
size_t * __restrict nresult)
{
#if _ENCODING_IS_STATE_DEPENDENT
return _FUNCNAME(put_state_reset)(_CE_TO_EI(ce), s, n, _TO_STATE(ps),
nresult);
#else
*nresult = 0;
return 0;
#endif
}

static int
_FUNCNAME(stdenc_get_state_desc)(struct _citrus_stdenc * __restrict ce,
void * __restrict ps,
int id,
struct _citrus_stdenc_state_desc * __restrict d)
{
int ret;

switch (id) {
case _STDENC_SDID_GENERIC:
ret = _FUNCNAME(stdenc_get_state_desc_generic)(
_CE_TO_EI(ce), _TO_STATE(ps), &d->u.generic.state);
break;
default:
ret = EOPNOTSUPP;
}

return ret;
}