From 6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:38:56 +0200 Subject: Adding upstream version 5.2.15. Signed-off-by: Daniel Baumann --- lib/sh/mbscmp.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 lib/sh/mbscmp.c (limited to 'lib/sh/mbscmp.c') 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 . +*/ + +#include + +#if !defined (HAVE_MBSCMP) && defined (HANDLE_MULTIBYTE) + +#include +#include +#include + +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 -- cgit v1.2.3