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      1 /*	$NetBSD: citrus_stdenc.h,v 1.5 2024/01/20 14:52:45 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c)2003 Citrus Project,
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  *
     28  */
     29 
     30 #ifndef _CITRUS_STDENC_H_
     31 #define _CITRUS_STDENC_H_
     32 
     33 struct _citrus_stdenc;
     34 struct _citrus_stdenc_ops;
     35 struct _citrus_stdenc_traits;
     36 
     37 #define _CITRUS_STDENC_SDID_GENERIC		0
     38 struct _citrus_stdenc_state_desc
     39 {
     40 	union {
     41 		struct {
     42 			int	state;
     43 #define _CITRUS_STDENC_SDGEN_UNKNOWN		0
     44 #define _CITRUS_STDENC_SDGEN_INITIAL		1
     45 #define _CITRUS_STDENC_SDGEN_STABLE		2
     46 #define _CITRUS_STDENC_SDGEN_INCOMPLETE_CHAR	3
     47 #define _CITRUS_STDENC_SDGEN_INCOMPLETE_SHIFT	4
     48 		} generic;
     49 	} u;
     50 };
     51 
     52 #include "citrus_stdenc_local.h"
     53 
     54 __BEGIN_DECLS
     55 int _citrus_stdenc_open(struct _citrus_stdenc * __restrict * __restrict,
     56 			char const * __restrict,
     57 			const void * __restrict, size_t);
     58 void _citrus_stdenc_close(struct _citrus_stdenc *);
     59 
     60 extern struct _citrus_stdenc _citrus_stdenc_default;
     61 
     62 __END_DECLS
     63 
     64 static __inline int
     65 _citrus_stdenc_init_state(struct _citrus_stdenc * __restrict ce,
     66 			  void * __restrict ps)
     67 {
     68 	_DIAGASSERT(ce && ce->ce_ops && ce->ce_ops->eo_init_state);
     69 	return (*ce->ce_ops->eo_init_state)(ce, ps);
     70 }
     71 
     72 static __inline int
     73 _citrus_stdenc_mbtocs(struct _citrus_stdenc * __restrict ce,
     74 		      _citrus_csid_t * __restrict csid,
     75 		      _citrus_index_t * __restrict idx,
     76 		      const char ** __restrict s, size_t n,
     77 		      void * __restrict ps, size_t * __restrict nresult)
     78 {
     79 	_DIAGASSERT(ce && ce->ce_ops && ce->ce_ops->eo_mbtocs);
     80 	return (*ce->ce_ops->eo_mbtocs)(ce, csid, idx, s, n, ps, nresult);
     81 }
     82 
     83 static __inline int
     84 _citrus_stdenc_cstomb(struct _citrus_stdenc * __restrict ce,
     85 		      char * __restrict s, size_t n,
     86 		      _citrus_csid_t csid, _citrus_index_t idx,
     87 		      void * __restrict ps, size_t * __restrict nresult)
     88 {
     89 	_DIAGASSERT(ce && ce->ce_ops && ce->ce_ops->eo_cstomb);
     90 	return (*ce->ce_ops->eo_cstomb)(ce, s, n, csid, idx, ps, nresult);
     91 }
     92 
     93 static __inline int
     94 _citrus_stdenc_mbtowc(struct _citrus_stdenc * __restrict ce,
     95 		      _citrus_wc_t * __restrict wc,
     96 		      const char ** __restrict s, size_t n,
     97 		      void * __restrict ps, size_t * __restrict nresult)
     98 {
     99 	_DIAGASSERT(ce && ce->ce_ops && ce->ce_ops->eo_mbtocs);
    100 	return (*ce->ce_ops->eo_mbtowc)(ce, wc, s, n, ps, nresult);
    101 }
    102 
    103 static __inline int
    104 _citrus_stdenc_wctomb(struct _citrus_stdenc * __restrict ce,
    105 		      char * __restrict s, size_t n, _citrus_wc_t wc,
    106 		      void * __restrict ps, size_t * __restrict nresult)
    107 {
    108 	_DIAGASSERT(ce && ce->ce_ops && ce->ce_ops->eo_cstomb);
    109 	return (*ce->ce_ops->eo_wctomb)(ce, s, n, wc, ps, nresult);
    110 }
    111 
    112 static __inline int
    113 _citrus_stdenc_put_state_reset(struct _citrus_stdenc * __restrict ce,
    114 			       char * __restrict s, size_t n,
    115 			       void * __restrict ps,
    116 			       size_t * __restrict nresult)
    117 {
    118 	_DIAGASSERT(ce && ce->ce_ops && ce->ce_ops->eo_put_state_reset);
    119 	return (*ce->ce_ops->eo_put_state_reset)(ce, s, n, ps, nresult);
    120 }
    121 
    122 static __inline size_t
    123 _citrus_stdenc_get_state_size(struct _citrus_stdenc *ce)
    124 {
    125 	_DIAGASSERT(ce && ce->ce_traits);
    126 	return ce->ce_traits->et_state_size;
    127 }
    128 
    129 static __inline size_t
    130 _citrus_stdenc_get_mb_cur_max(struct _citrus_stdenc *ce)
    131 {
    132 	_DIAGASSERT(ce && ce->ce_traits);
    133 	return ce->ce_traits->et_mb_cur_max;
    134 }
    135 
    136 static __inline int
    137 _citrus_stdenc_get_state_desc(struct _citrus_stdenc * __restrict ce,
    138 			      void * __restrict ps,
    139 			      int id,
    140 			      struct _citrus_stdenc_state_desc * __restrict d)
    141 {
    142 
    143 	_DIAGASSERT(ce && ce->ce_ops && ce->ce_ops->eo_get_state_desc);
    144 
    145 	return (*ce->ce_ops->eo_get_state_desc)(ce, ps, id, d);
    146 }
    147 
    148 #endif
    149