2000-02-18 03:39:52 +08:00
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/*
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FUNCTION
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<<_mblen_r>>---reentrant minimal multibyte length function
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INDEX
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_mblen_r
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2017-11-30 16:17:18 +08:00
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SYNOPSIS
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2000-02-18 03:39:52 +08:00
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#include <stdlib.h>
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int _mblen_r(struct _reent *<[r]>, const char *<[s]>, size_t <[n]>, int *<[state]>);
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DESCRIPTION
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2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com>
* configure.in: Define _MB_CAPABLE if mb supported.
* configure: Regenerated.
* configure.host: Remove manual setting of MB_CAPABLE compiler
flag.
* newlib.hin: Add _MB_CAPABLE flag.
* libc/ctype/iswalpha.c, libc/ctype/iswblank.c: Include <newlib.h>
and check for _MB_CAPABLE flag instead of MB_CAPABLE.
* libc/ctype/iswcntrl.c, libc/ctype/iswprint.c: Ditto.
* libc/ctype/iswpunct.c, libc/ctype/iswspace.c: Ditto.
* libc/ctype/jp2uc.c: Ditto.
* libc/ctype/towlower.c, libc/ctype/towupper.c: Ditto.
* libc/locale/locale.c: Ditto
* libc/machine/powerpc/vfscanf.c: Ditto
* libc/stdio/vfprintf.c, libc/stdio/vfscanf.c: Ditto
* libc/stdlib/mblen.c: Ditto
* libc/stdlib/mblen_r.c, libc/stdlib/mbrlen.c: Ditto
* libc/stdlib/mbrtowc.c, libc/stdlib/mbsrtowcs.c: Ditto
* libc/stdlib/mbstowcs.c, libc/stdlib/mbtowc.c: Ditto
* libc/stdlib/mbtowc_r.c, libc/stdlib/wcrtomb.c: Ditto
* libc/stdlib/wcsrtombs.c, libc/stdlib/wcstombs.c: Ditto
* libc/stdlib/wctomb.c, libc/sys/linux/intl/dcigettext.c: Ditto
* libc/sys/linux/intl/explodename.c: Ditto
* libc/sys/linux/intl/finddomain.c: Ditto
* libc/sys/linux/intl/l10nflist.c: Ditto
* libc/sys/linux/intl/loadmsgcat.c: Ditto
* libc/sys/linux/intl/localealias.c: Ditto
2004-04-24 05:44:22 +08:00
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When _MB_CAPABLE is not defined, this is a minimal ANSI-conforming
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2000-02-18 03:39:52 +08:00
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implementation of <<_mblen_r>>. In this case, the
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only ``multi-byte character sequences'' recognized are single bytes,
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and thus <<1>> is returned unless <[s]> is the null pointer or
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has a length of 0 or is the empty string.
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2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com>
* configure.in: Define _MB_CAPABLE if mb supported.
* configure: Regenerated.
* configure.host: Remove manual setting of MB_CAPABLE compiler
flag.
* newlib.hin: Add _MB_CAPABLE flag.
* libc/ctype/iswalpha.c, libc/ctype/iswblank.c: Include <newlib.h>
and check for _MB_CAPABLE flag instead of MB_CAPABLE.
* libc/ctype/iswcntrl.c, libc/ctype/iswprint.c: Ditto.
* libc/ctype/iswpunct.c, libc/ctype/iswspace.c: Ditto.
* libc/ctype/jp2uc.c: Ditto.
* libc/ctype/towlower.c, libc/ctype/towupper.c: Ditto.
* libc/locale/locale.c: Ditto
* libc/machine/powerpc/vfscanf.c: Ditto
* libc/stdio/vfprintf.c, libc/stdio/vfscanf.c: Ditto
* libc/stdlib/mblen.c: Ditto
* libc/stdlib/mblen_r.c, libc/stdlib/mbrlen.c: Ditto
* libc/stdlib/mbrtowc.c, libc/stdlib/mbsrtowcs.c: Ditto
* libc/stdlib/mbstowcs.c, libc/stdlib/mbtowc.c: Ditto
* libc/stdlib/mbtowc_r.c, libc/stdlib/wcrtomb.c: Ditto
* libc/stdlib/wcsrtombs.c, libc/stdlib/wcstombs.c: Ditto
* libc/stdlib/wctomb.c, libc/sys/linux/intl/dcigettext.c: Ditto
* libc/sys/linux/intl/explodename.c: Ditto
* libc/sys/linux/intl/finddomain.c: Ditto
* libc/sys/linux/intl/l10nflist.c: Ditto
* libc/sys/linux/intl/loadmsgcat.c: Ditto
* libc/sys/linux/intl/localealias.c: Ditto
2004-04-24 05:44:22 +08:00
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When _MB_CAPABLE is defined, this routine calls <<_mbtowc_r>> to perform
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2000-02-18 03:39:52 +08:00
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the conversion, passing a state variable to allow state dependent
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decoding. The result is based on the locale setting which may
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be restricted to a defined set of locales.
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RETURNS
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This implementation of <<_mblen_r>> returns <<0>> if
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2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com>
* configure.in: Define _MB_CAPABLE if mb supported.
* configure: Regenerated.
* configure.host: Remove manual setting of MB_CAPABLE compiler
flag.
* newlib.hin: Add _MB_CAPABLE flag.
* libc/ctype/iswalpha.c, libc/ctype/iswblank.c: Include <newlib.h>
and check for _MB_CAPABLE flag instead of MB_CAPABLE.
* libc/ctype/iswcntrl.c, libc/ctype/iswprint.c: Ditto.
* libc/ctype/iswpunct.c, libc/ctype/iswspace.c: Ditto.
* libc/ctype/jp2uc.c: Ditto.
* libc/ctype/towlower.c, libc/ctype/towupper.c: Ditto.
* libc/locale/locale.c: Ditto
* libc/machine/powerpc/vfscanf.c: Ditto
* libc/stdio/vfprintf.c, libc/stdio/vfscanf.c: Ditto
* libc/stdlib/mblen.c: Ditto
* libc/stdlib/mblen_r.c, libc/stdlib/mbrlen.c: Ditto
* libc/stdlib/mbrtowc.c, libc/stdlib/mbsrtowcs.c: Ditto
* libc/stdlib/mbstowcs.c, libc/stdlib/mbtowc.c: Ditto
* libc/stdlib/mbtowc_r.c, libc/stdlib/wcrtomb.c: Ditto
* libc/stdlib/wcsrtombs.c, libc/stdlib/wcstombs.c: Ditto
* libc/stdlib/wctomb.c, libc/sys/linux/intl/dcigettext.c: Ditto
* libc/sys/linux/intl/explodename.c: Ditto
* libc/sys/linux/intl/finddomain.c: Ditto
* libc/sys/linux/intl/l10nflist.c: Ditto
* libc/sys/linux/intl/loadmsgcat.c: Ditto
* libc/sys/linux/intl/localealias.c: Ditto
2004-04-24 05:44:22 +08:00
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<[s]> is <<NULL>> or the empty string; it returns <<1>> if not _MB_CAPABLE or
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2000-02-18 03:39:52 +08:00
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the character is a single-byte character; it returns <<-1>>
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if the multi-byte character is invalid; otherwise it returns
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the number of bytes in the multibyte character.
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PORTABILITY
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<<_mblen>> is required in the ANSI C standard. However, the precise
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effects vary with the locale.
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<<_mblen_r>> requires no supporting OS subroutines.
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*/
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2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com>
* configure.in: Define _MB_CAPABLE if mb supported.
* configure: Regenerated.
* configure.host: Remove manual setting of MB_CAPABLE compiler
flag.
* newlib.hin: Add _MB_CAPABLE flag.
* libc/ctype/iswalpha.c, libc/ctype/iswblank.c: Include <newlib.h>
and check for _MB_CAPABLE flag instead of MB_CAPABLE.
* libc/ctype/iswcntrl.c, libc/ctype/iswprint.c: Ditto.
* libc/ctype/iswpunct.c, libc/ctype/iswspace.c: Ditto.
* libc/ctype/jp2uc.c: Ditto.
* libc/ctype/towlower.c, libc/ctype/towupper.c: Ditto.
* libc/locale/locale.c: Ditto
* libc/machine/powerpc/vfscanf.c: Ditto
* libc/stdio/vfprintf.c, libc/stdio/vfscanf.c: Ditto
* libc/stdlib/mblen.c: Ditto
* libc/stdlib/mblen_r.c, libc/stdlib/mbrlen.c: Ditto
* libc/stdlib/mbrtowc.c, libc/stdlib/mbsrtowcs.c: Ditto
* libc/stdlib/mbstowcs.c, libc/stdlib/mbtowc.c: Ditto
* libc/stdlib/mbtowc_r.c, libc/stdlib/wcrtomb.c: Ditto
* libc/stdlib/wcsrtombs.c, libc/stdlib/wcstombs.c: Ditto
* libc/stdlib/wctomb.c, libc/sys/linux/intl/dcigettext.c: Ditto
* libc/sys/linux/intl/explodename.c: Ditto
* libc/sys/linux/intl/finddomain.c: Ditto
* libc/sys/linux/intl/l10nflist.c: Ditto
* libc/sys/linux/intl/loadmsgcat.c: Ditto
* libc/sys/linux/intl/localealias.c: Ditto
2004-04-24 05:44:22 +08:00
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#include <newlib.h>
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2000-02-18 03:39:52 +08:00
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#include <stdlib.h>
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2002-08-23 09:56:05 +08:00
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#include <wchar.h>
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2009-11-18 17:49:57 +08:00
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#include "local.h"
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2000-02-18 03:39:52 +08:00
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int
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_DEFUN (_mblen_r, (r, s, n, state),
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2017-12-04 09:31:41 +08:00
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struct _reent *r,
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const char *s,
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size_t n,
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2002-08-23 09:56:05 +08:00
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mbstate_t *state)
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2000-02-18 03:39:52 +08:00
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{
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2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com>
* configure.in: Define _MB_CAPABLE if mb supported.
* configure: Regenerated.
* configure.host: Remove manual setting of MB_CAPABLE compiler
flag.
* newlib.hin: Add _MB_CAPABLE flag.
* libc/ctype/iswalpha.c, libc/ctype/iswblank.c: Include <newlib.h>
and check for _MB_CAPABLE flag instead of MB_CAPABLE.
* libc/ctype/iswcntrl.c, libc/ctype/iswprint.c: Ditto.
* libc/ctype/iswpunct.c, libc/ctype/iswspace.c: Ditto.
* libc/ctype/jp2uc.c: Ditto.
* libc/ctype/towlower.c, libc/ctype/towupper.c: Ditto.
* libc/locale/locale.c: Ditto
* libc/machine/powerpc/vfscanf.c: Ditto
* libc/stdio/vfprintf.c, libc/stdio/vfscanf.c: Ditto
* libc/stdlib/mblen.c: Ditto
* libc/stdlib/mblen_r.c, libc/stdlib/mbrlen.c: Ditto
* libc/stdlib/mbrtowc.c, libc/stdlib/mbsrtowcs.c: Ditto
* libc/stdlib/mbstowcs.c, libc/stdlib/mbtowc.c: Ditto
* libc/stdlib/mbtowc_r.c, libc/stdlib/wcrtomb.c: Ditto
* libc/stdlib/wcsrtombs.c, libc/stdlib/wcstombs.c: Ditto
* libc/stdlib/wctomb.c, libc/sys/linux/intl/dcigettext.c: Ditto
* libc/sys/linux/intl/explodename.c: Ditto
* libc/sys/linux/intl/finddomain.c: Ditto
* libc/sys/linux/intl/l10nflist.c: Ditto
* libc/sys/linux/intl/loadmsgcat.c: Ditto
* libc/sys/linux/intl/localealias.c: Ditto
2004-04-24 05:44:22 +08:00
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#ifdef _MB_CAPABLE
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2002-09-10 05:42:14 +08:00
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int retval;
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2016-07-21 04:05:59 +08:00
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retval = __MBTOWC (r, NULL, s, n, state);
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2000-02-18 03:39:52 +08:00
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2002-09-10 05:42:14 +08:00
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if (retval < 0)
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{
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state->__count = 0;
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return -1;
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}
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return retval;
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2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com>
* configure.in: Define _MB_CAPABLE if mb supported.
* configure: Regenerated.
* configure.host: Remove manual setting of MB_CAPABLE compiler
flag.
* newlib.hin: Add _MB_CAPABLE flag.
* libc/ctype/iswalpha.c, libc/ctype/iswblank.c: Include <newlib.h>
and check for _MB_CAPABLE flag instead of MB_CAPABLE.
* libc/ctype/iswcntrl.c, libc/ctype/iswprint.c: Ditto.
* libc/ctype/iswpunct.c, libc/ctype/iswspace.c: Ditto.
* libc/ctype/jp2uc.c: Ditto.
* libc/ctype/towlower.c, libc/ctype/towupper.c: Ditto.
* libc/locale/locale.c: Ditto
* libc/machine/powerpc/vfscanf.c: Ditto
* libc/stdio/vfprintf.c, libc/stdio/vfscanf.c: Ditto
* libc/stdlib/mblen.c: Ditto
* libc/stdlib/mblen_r.c, libc/stdlib/mbrlen.c: Ditto
* libc/stdlib/mbrtowc.c, libc/stdlib/mbsrtowcs.c: Ditto
* libc/stdlib/mbstowcs.c, libc/stdlib/mbtowc.c: Ditto
* libc/stdlib/mbtowc_r.c, libc/stdlib/wcrtomb.c: Ditto
* libc/stdlib/wcsrtombs.c, libc/stdlib/wcstombs.c: Ditto
* libc/stdlib/wctomb.c, libc/sys/linux/intl/dcigettext.c: Ditto
* libc/sys/linux/intl/explodename.c: Ditto
* libc/sys/linux/intl/finddomain.c: Ditto
* libc/sys/linux/intl/l10nflist.c: Ditto
* libc/sys/linux/intl/loadmsgcat.c: Ditto
* libc/sys/linux/intl/localealias.c: Ditto
2004-04-24 05:44:22 +08:00
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#else /* not _MB_CAPABLE */
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2002-09-10 05:42:14 +08:00
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if (s == NULL || *s == '\0')
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return 0;
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if (n == 0)
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return -1;
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return 1;
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2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com>
* configure.in: Define _MB_CAPABLE if mb supported.
* configure: Regenerated.
* configure.host: Remove manual setting of MB_CAPABLE compiler
flag.
* newlib.hin: Add _MB_CAPABLE flag.
* libc/ctype/iswalpha.c, libc/ctype/iswblank.c: Include <newlib.h>
and check for _MB_CAPABLE flag instead of MB_CAPABLE.
* libc/ctype/iswcntrl.c, libc/ctype/iswprint.c: Ditto.
* libc/ctype/iswpunct.c, libc/ctype/iswspace.c: Ditto.
* libc/ctype/jp2uc.c: Ditto.
* libc/ctype/towlower.c, libc/ctype/towupper.c: Ditto.
* libc/locale/locale.c: Ditto
* libc/machine/powerpc/vfscanf.c: Ditto
* libc/stdio/vfprintf.c, libc/stdio/vfscanf.c: Ditto
* libc/stdlib/mblen.c: Ditto
* libc/stdlib/mblen_r.c, libc/stdlib/mbrlen.c: Ditto
* libc/stdlib/mbrtowc.c, libc/stdlib/mbsrtowcs.c: Ditto
* libc/stdlib/mbstowcs.c, libc/stdlib/mbtowc.c: Ditto
* libc/stdlib/mbtowc_r.c, libc/stdlib/wcrtomb.c: Ditto
* libc/stdlib/wcsrtombs.c, libc/stdlib/wcstombs.c: Ditto
* libc/stdlib/wctomb.c, libc/sys/linux/intl/dcigettext.c: Ditto
* libc/sys/linux/intl/explodename.c: Ditto
* libc/sys/linux/intl/finddomain.c: Ditto
* libc/sys/linux/intl/l10nflist.c: Ditto
* libc/sys/linux/intl/loadmsgcat.c: Ditto
* libc/sys/linux/intl/localealias.c: Ditto
2004-04-24 05:44:22 +08:00
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#endif /* not _MB_CAPABLE */
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2000-02-18 03:39:52 +08:00
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}
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