X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fmbsrtowcs.c;h=116ff493b9b742a75429cd4fa1be716fe987f3d1;hb=fa1db0dd22768f09a507674a30beb5b8a87bb35f;hp=59cbbdb31bd50d344fe6596c7ba1fc060e6a41c6;hpb=d60f3b0c6b0f93a601acd1cfd3923f94ca05abb0;p=gnulib.git diff --git a/lib/mbsrtowcs.c b/lib/mbsrtowcs.c index 59cbbdb31..116ff493b 100644 --- a/lib/mbsrtowcs.c +++ b/lib/mbsrtowcs.c @@ -1,5 +1,5 @@ /* Convert string to wide string. - Copyright (C) 2008-2011 Free Software Foundation, Inc. + Copyright (C) 2008-2013 Free Software Foundation, Inc. Written by Bruno Haible , 2008. This program is free software: you can redistribute it and/or modify @@ -29,108 +29,4 @@ extern mbstate_t _gl_mbsrtowcs_state; -size_t -mbsrtowcs (wchar_t *dest, const char **srcp, size_t len, mbstate_t *ps) -{ - if (ps == NULL) - ps = &_gl_mbsrtowcs_state; - { - const char *src = *srcp; - - if (dest != NULL) - { - wchar_t *destptr = dest; - - for (; len > 0; destptr++, len--) - { - size_t src_avail; - size_t ret; - - /* An optimized variant of - src_avail = strnlen1 (src, MB_LEN_MAX); */ - if (src[0] == '\0') - src_avail = 1; - else if (src[1] == '\0') - src_avail = 2; - else if (src[2] == '\0') - src_avail = 3; - else if (MB_LEN_MAX <= 4 || src[3] == '\0') - src_avail = 4; - else - src_avail = 4 + strnlen1 (src + 4, MB_LEN_MAX - 4); - - /* Parse the next multibyte character. */ - ret = mbrtowc (destptr, src, src_avail, ps); - - if (ret == (size_t)(-2)) - /* Encountered a multibyte character that extends past a '\0' byte - or that is longer than MB_LEN_MAX bytes. Cannot happen. */ - abort (); - - if (ret == (size_t)(-1)) - goto bad_input; - if (ret == 0) - { - src = NULL; - /* Here mbsinit (ps). */ - break; - } - src += ret; - } - - *srcp = src; - return destptr - dest; - } - else - { - /* Ignore dest and len, don't store *srcp at the end, and - don't clobber *ps. */ - mbstate_t state = *ps; - size_t totalcount = 0; - - for (;; totalcount++) - { - size_t src_avail; - size_t ret; - - /* An optimized variant of - src_avail = strnlen1 (src, MB_LEN_MAX); */ - if (src[0] == '\0') - src_avail = 1; - else if (src[1] == '\0') - src_avail = 2; - else if (src[2] == '\0') - src_avail = 3; - else if (MB_LEN_MAX <= 4 || src[3] == '\0') - src_avail = 4; - else - src_avail = 4 + strnlen1 (src + 4, MB_LEN_MAX - 4); - - /* Parse the next multibyte character. */ - ret = mbrtowc (NULL, src, src_avail, &state); - - if (ret == (size_t)(-2)) - /* Encountered a multibyte character that extends past a '\0' byte - or that is longer than MB_LEN_MAX bytes. Cannot happen. */ - abort (); - - if (ret == (size_t)(-1)) - goto bad_input2; - if (ret == 0) - { - /* Here mbsinit (&state). */ - break; - } - src += ret; - } - - return totalcount; - } - - bad_input: - *srcp = src; - bad_input2: - errno = EILSEQ; - return (size_t)(-1); - } -} +#include "mbsrtowcs-impl.h"