platform_bionic/libc/include/wchar.h
Elliott Hughes 3d7a0d9b08 Switch to the OpenBSD wcsto* functions.
This replaces a partial set of non-functional functions with a complete
set of functions, all of which actually work.

This requires us to implement mbsnrtowcs and wcsnrtombs which completes
the set of what we need for libc++.

The mbsnrtowcs is basically a copy & paste of wcsnrtombs, but I'm going
to go straight to looking at using the OpenBSD UTF-8 implementation rather
than keep polishing our home-grown turd.

(This patch also opportunistically switches us over to upstream btowc,
mbrlen, and wctob, since they're all trivially expressed in terms of
other functions.)

Change-Id: I0f81443840de0f1aa73b96f0b51988976793a323
2014-04-29 14:53:11 -07:00

159 lines
6.9 KiB
C

/*
* Copyright (C) 2008 The Android Open Source 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:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*/
#ifndef _WCHAR_H_
#define _WCHAR_H_
#include <sys/cdefs.h>
#include <stdio.h>
#include <stdarg.h>
#include <stddef.h>
#include <time.h>
#include <machine/wchar_limits.h>
__BEGIN_DECLS
typedef __WINT_TYPE__ wint_t;
typedef struct { int dummy; } mbstate_t;
typedef enum {
WC_TYPE_INVALID = 0,
WC_TYPE_ALNUM,
WC_TYPE_ALPHA,
WC_TYPE_BLANK,
WC_TYPE_CNTRL,
WC_TYPE_DIGIT,
WC_TYPE_GRAPH,
WC_TYPE_LOWER,
WC_TYPE_PRINT,
WC_TYPE_PUNCT,
WC_TYPE_SPACE,
WC_TYPE_UPPER,
WC_TYPE_XDIGIT,
WC_TYPE_MAX
} wctype_t;
#define WEOF ((wint_t)(-1))
extern wint_t btowc(int);
extern int fwprintf(FILE *, const wchar_t *, ...);
extern int fwscanf(FILE *, const wchar_t *, ...);
extern int iswalnum(wint_t);
extern int iswalpha(wint_t);
extern int iswblank(wint_t);
extern int iswcntrl(wint_t);
extern int iswdigit(wint_t);
extern int iswgraph(wint_t);
extern int iswlower(wint_t);
extern int iswprint(wint_t);
extern int iswpunct(wint_t);
extern int iswspace(wint_t);
extern int iswupper(wint_t);
extern int iswxdigit(wint_t);
extern int iswctype(wint_t, wctype_t);
extern wint_t fgetwc(FILE *);
extern wchar_t *fgetws(wchar_t *, int, FILE *);
extern wint_t fputwc(wchar_t, FILE *);
extern int fputws(const wchar_t *, FILE *);
extern int fwide(FILE *, int);
extern wint_t getwc(FILE *);
extern wint_t getwchar(void);
extern int mbsinit(const mbstate_t *);
extern size_t mbrlen(const char *, size_t, mbstate_t *);
extern size_t mbrtowc(wchar_t *, const char *, size_t, mbstate_t *);
extern size_t mbsrtowcs(wchar_t*, const char**, size_t, mbstate_t*);
extern size_t mbsnrtowcs(wchar_t*, const char**, size_t, size_t, mbstate_t*);
extern size_t mbstowcs(wchar_t *, const char *, size_t);
extern wint_t putwc(wchar_t, FILE *);
extern wint_t putwchar(wchar_t);
extern int swprintf(wchar_t *, size_t, const wchar_t *, ...);
extern int swscanf(const wchar_t *, const wchar_t *, ...);
extern wint_t towlower(wint_t);
extern wint_t towupper(wint_t);
extern wint_t ungetwc(wint_t, FILE *);
extern int vfwprintf(FILE *, const wchar_t *, va_list);
extern int vwprintf(const wchar_t *, va_list);
extern int vswprintf(wchar_t *, size_t, const wchar_t *, va_list);
extern size_t wcrtomb(char *, wchar_t, mbstate_t *);
extern int wcscasecmp(const wchar_t *, const wchar_t *);
extern wchar_t *wcscat(wchar_t *, const wchar_t *);
extern wchar_t *wcschr(const wchar_t *, wchar_t);
extern int wcscmp(const wchar_t *, const wchar_t *);
extern int wcscoll(const wchar_t *, const wchar_t *);
extern wchar_t *wcscpy(wchar_t *, const wchar_t *);
extern size_t wcscspn(const wchar_t *, const wchar_t *);
extern size_t wcsftime(wchar_t *, size_t, const wchar_t *, const struct tm *);
extern size_t wcslen(const wchar_t *);
extern int wcsncasecmp(const wchar_t *, const wchar_t *, size_t);
extern wchar_t *wcsncat(wchar_t *, const wchar_t *, size_t);
extern int wcsncmp(const wchar_t *, const wchar_t *, size_t);
extern wchar_t *wcsncpy(wchar_t *, const wchar_t *, size_t);
extern size_t wcsnrtombs(char*, const wchar_t**, size_t, size_t, mbstate_t*);
extern wchar_t *wcspbrk(const wchar_t *, const wchar_t *);
extern wchar_t *wcsrchr(const wchar_t *, wchar_t);
extern size_t wcsrtombs(char*, const wchar_t**, size_t, mbstate_t*);
extern size_t wcsspn(const wchar_t *, const wchar_t *);
extern wchar_t *wcsstr(const wchar_t *, const wchar_t *);
extern double wcstod(const wchar_t*, wchar_t**);
extern float wcstof(const wchar_t*, wchar_t**);
extern wchar_t* wcstok(wchar_t*, const wchar_t*, wchar_t**);
extern long wcstol(const wchar_t*, wchar_t**, int);
extern long long wcstoll(const wchar_t*, wchar_t**, int);
extern long double wcstold(const wchar_t*, wchar_t**);
extern unsigned long wcstoul(const wchar_t*, wchar_t**, int);
extern unsigned long long wcstoull(const wchar_t*, wchar_t**, int);
extern wchar_t *wcswcs(const wchar_t *, const wchar_t *);
extern int wcswidth(const wchar_t *, size_t);
extern size_t wcsxfrm(wchar_t *, const wchar_t *, size_t);
extern int wctob(wint_t);
extern wctype_t wctype(const char *);
extern int wcwidth(wchar_t);
extern wchar_t *wmemchr(const wchar_t *, wchar_t, size_t);
extern int wmemcmp(const wchar_t *, const wchar_t *, size_t);
extern wchar_t *wmemcpy(wchar_t *, const wchar_t *, size_t);
extern wchar_t *wmemmove(wchar_t *, const wchar_t *, size_t);
extern wchar_t *wmemset(wchar_t *, wchar_t, size_t);
extern int wprintf(const wchar_t *, ...);
extern int wscanf(const wchar_t *, ...);
extern size_t wcslcat(wchar_t*, const wchar_t*, size_t);
extern size_t wcslcpy(wchar_t*, const wchar_t*, size_t);
typedef void *wctrans_t;
extern wint_t towctrans(wint_t, wctrans_t);
extern wctrans_t wctrans(const char*);
#if __POSIX_VISIBLE >= 200809
wchar_t* wcsdup(const wchar_t*);
size_t wcsnlen(const wchar_t*, size_t);
#endif
__END_DECLS
#endif /* _WCHAR_H_ */