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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:17:24 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:17:24 +0000 |
commit | 9d8085074991d5c0a42d6fc96a2d1a3ee918aad1 (patch) | |
tree | c85bca1e6c11eb872edfc64c524d20f2b7e3307b /lib/sh/mbscmp.c | |
parent | Initial commit. (diff) | |
download | bash-upstream.tar.xz bash-upstream.zip |
Adding upstream version 5.1.upstream/5.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/sh/mbscmp.c')
-rw-r--r-- | lib/sh/mbscmp.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/lib/sh/mbscmp.c b/lib/sh/mbscmp.c new file mode 100644 index 0000000..c7c8443 --- /dev/null +++ b/lib/sh/mbscmp.c @@ -0,0 +1,77 @@ +/* mbscmp - multibyte string comparison. */ + +/* Copyright (C) 1995-2018 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + Bash is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#if !defined (HAVE_MBSCMP) && defined (HANDLE_MULTIBYTE) + +#include <stdlib.h> +#include <stddef.h> +#include <string.h> + +extern int locale_utf8locale; + +extern int utf8_mbscmp (const char *, const char *); + +/* Compare MBS1 and MBS2. */ +int +mbscmp (mbs1, mbs2) + const char *mbs1; + const char *mbs2; +{ + int len1, len2, mb_cur_max; + wchar_t c1, c2; + + len1 = len2 = 0; + /* Reset multibyte characters to their initial state. */ + (void) mblen ((char *) NULL, 0); + + mb_cur_max = MB_CUR_MAX; + do + { + len1 = mbtowc (&c1, mbs1, mb_cur_max); + len2 = mbtowc (&c2, mbs2, mb_cur_max); + + if (len1 == 0) + return len2 == 0 ? 0 : -1; + else if (len2 == 0) + return 1; + else if (len1 > 0 && len2 < 0) + return -1; + else if (len1 < 0 && len2 > 0) + return 1; + else if (len1 < 0 && len2 < 0) + { + len1 = strlen (mbs1); + len2 = strlen (mbs2); + return (len1 == len2 ? memcmp (mbs1, mbs2, len1) + : ((len1 < len2) ? (memcmp (mbs1, mbs2, len1) > 0 ? 1 : -1) + : (memcmp (mbs1, mbs2, len2) >= 0 ? 1 : -1))); + } + + mbs1 += len1; + mbs2 += len2; + } + while (c1 == c2); + + return c1 - c2; +} + +#endif |