71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
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/* Locale-specific memory comparison.
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Copyright (C) 2002 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* Contributed by Paul Eggert <eggert@twinsun.com>. */
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <errno.h>
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#ifndef errno
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extern int errno;
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#endif
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#include <stdlib.h>
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#if ENABLE_NLS
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# include <libintl.h>
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# define _(Text) gettext (Text)
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#else
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# define _(Text) Text
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#endif
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#include "error.h"
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#include "memcoll.h"
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#include "quotearg.h"
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#include "xmemcoll.h"
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/* Exit value when xmemcoll fails.
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The caller may set it to some other value. */
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int xmemcoll_exit_failure = EXIT_FAILURE;
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/* Compare S1 (with length S1LEN) and S2 (with length S2LEN) according
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to the LC_COLLATE locale. S1 and S2 do not overlap, and are not
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adjacent. Temporarily modify the bytes after S1 and S2, but
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restore their original contents before returning. Report an error
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and exit if there is an error. */
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int
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xmemcoll (char *s1, size_t s1len, char *s2, size_t s2len)
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{
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int diff = memcoll (s1, s1len, s2, s2len);
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int collation_errno = errno;
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if (collation_errno)
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{
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error (0, collation_errno, _("string comparison failed"));
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error (0, 0, _("Set LC_ALL='C' to work around the problem."));
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error (xmemcoll_exit_failure, 0,
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_("The strings compared were %s and %s."),
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quotearg_n_style_mem (0, locale_quoting_style, s1, s1len),
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quotearg_n_style_mem (1, locale_quoting_style, s2, s2len));
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}
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return diff;
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}
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