[apple/libc.git] / locale / runedepreciated.c

/*
 * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */

#include "xlocale_private.h"

#include <string.h>
#include <rune.h>
#include <stdlib.h>
#include <wchar.h>
#include "runedepreciated.h"

__private_extern__ const char __rune_depreciated_msg[] = "\
%s and other functions prototyped in rune.h are depreciated in favor of\n\
the ISO C99 extended multibyte and wide character facilities and should not\n\
be used in new applications.\n\
";

__private_extern__ rune_t
__sgetrune(const char *string, size_t n, char const **result)
{
	wchar_t wc;
	size_t converted = mbrtowc(&wc, string, n, NULL);
	__darwin_rune_t invalid_rune = __current_locale()->__lc_ctype->_CurrentRuneLocale.__invalid_rune;

	switch (converted) {
	case (size_t)-2:	/* incomplete */
		if (result)
			*result = string;
		return invalid_rune;
	case (size_t)-1:	/* invalid */
		if (result)
			*result = string + 1;
		return invalid_rune;
	case (size_t)0:		/* null wide character */
	{
		int i;

		for (i = 1; i < n; i++)
			if (mbrtowc(&wc, string, n, NULL) == (size_t)0)
				break;
		if (result)
			*result = string + i;
		return (rune_t)0;
	}
	default:
		if (result)
			*result = string + converted;
		return (rune_t)wc;
	}
	/* NOTREACHED */
}

__private_extern__ int
__sputrune(rune_t rune, char *string, size_t n, char **result)
{
	char buf[MB_CUR_MAX];
	size_t converted = wcrtomb(buf, rune, NULL);

	if (converted < 0) {
		if (result)
			*result = string;
	} else if (n >= converted) {
		if (string)
			bcopy(buf, string, converted);
		if (result)
			*result = string + converted;
	} else if (result)
		*result = NULL;
	return (converted < 0 ? 0 : converted);
}

__private_extern__ rune_t
sgetrune(const char *string, size_t n, char const **result)
{
	static int warn_depreciated = 1;

	if (warn_depreciated) {
		warn_depreciated = 0;
		fprintf(stderr, __rune_depreciated_msg, "sgetrune");
	}
	return __sgetrune(string, n, result);
}

__private_extern__ int
sputrune(rune_t rune, char *string, size_t n, char **result)
{
	static int warn_depreciated = 1;

	if (warn_depreciated) {
		warn_depreciated = 0;
		fprintf(stderr, __rune_depreciated_msg, "sputrune");
	}
	return __sputrune(rune, string, n, result);
}
Commit	Line	Data
3d9156a7 A	1	/*
	2	* Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. Please obtain a copy of the License at
	10	* http://www.opensource.apple.com/apsl/ and read it before using this
	11	* file.
	12	*
	13	* The Original Code and all software distributed under the License are
	14	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	15	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	16	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	18	* Please see the License for the specific language governing rights and
	19	* limitations under the License.
	20	*
	21	* @APPLE_LICENSE_HEADER_END@
	22	*/
	23
	24	#include "xlocale_private.h"
	25
	26	#include <string.h>
	27	#include <rune.h>
	28	#include <stdlib.h>
	29	#include <wchar.h>
	30	#include "runedepreciated.h"
	31
	32	__private_extern__ const char __rune_depreciated_msg[] = "\
	33	%s and other functions prototyped in rune.h are depreciated in favor of\n\
	34	the ISO C99 extended multibyte and wide character facilities and should not\n\
	35	be used in new applications.\n\
	36	";
	37
	38	__private_extern__ rune_t
	39	__sgetrune(const char string, size_t n, char const *result)
	40	{
	41	wchar_t wc;
	42	size_t converted = mbrtowc(&wc, string, n, NULL);
	43	__darwin_rune_t invalid_rune = __current_locale()->__lc_ctype->_CurrentRuneLocale.__invalid_rune;
	44
	45	switch (converted) {
	46	case (size_t)-2: /* incomplete */
	47	if (result)
	48	*result = string;
	49	return invalid_rune;
	50	case (size_t)-1: /* invalid */
	51	if (result)
	52	*result = string + 1;
	53	return invalid_rune;
	54	case (size_t)0: /* null wide character */
	55	{
	56	int i;
	57
	58	for (i = 1; i < n; i++)
	59	if (mbrtowc(&wc, string, n, NULL) == (size_t)0)
	60	break;
	61	if (result)
	62	*result = string + i;
	63	return (rune_t)0;
	64	}
65	default:
66	if (result)
67	*result = string + converted;
68	return (rune_t)wc;
69	}
70	/* NOTREACHED */
71	}
72
73	__private_extern__ int
74	__sputrune(rune_t rune, char string, size_t n, char *result)
75	{
76	char buf[MB_CUR_MAX];
77	size_t converted = wcrtomb(buf, rune, NULL);
78
79	if (converted < 0) {
80	if (result)
81	*result = string;
82	} else if (n >= converted) {
83	if (string)
84	bcopy(buf, string, converted);
85	if (result)
86	*result = string + converted;
87	} else if (result)
88	*result = NULL;
89	return (converted < 0 ? 0 : converted);
90	}
91
92	__private_extern__ rune_t
93	sgetrune(const char string, size_t n, char const *result)
94	{
95	static int warn_depreciated = 1;
96
97	if (warn_depreciated) {
98	warn_depreciated = 0;
99	fprintf(stderr, __rune_depreciated_msg, "sgetrune");
100	}
101	return __sgetrune(string, n, result);
102	}
103
104	__private_extern__ int
105	sputrune(rune_t rune, char string, size_t n, char *result)
106	{
107	static int warn_depreciated = 1;
108
109	if (warn_depreciated) {
110	warn_depreciated = 0;
111	fprintf(stderr, __rune_depreciated_msg, "sputrune");
112	}
113	return __sputrune(rune, string, n, result);
114	}