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authorEric Andersen <andersen@codepoet.org>2001-05-25 23:23:02 +0000
committerEric Andersen <andersen@codepoet.org>2001-05-25 23:23:02 +0000
commit6e72ced7e75c9977390ce89c5edc07efde05fa7c (patch)
tree9ae8c6537a1e9be44b0d206ff0f80eb3b7dde96a /libc/misc/locale/nl_langinfo.c
parent6395e85878894f3c0ad8a05b3aec66e514591959 (diff)
Add in some more GNU compatible locale stuff. I only implement the
C locale of course. util-linux needs this stuff to compile...
Diffstat (limited to 'libc/misc/locale/nl_langinfo.c')
-rw-r--r--libc/misc/locale/nl_langinfo.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/libc/misc/locale/nl_langinfo.c b/libc/misc/locale/nl_langinfo.c
new file mode 100644
index 000000000..492bf2bda
--- /dev/null
+++ b/libc/misc/locale/nl_langinfo.c
@@ -0,0 +1,98 @@
+/* User interface for extracting locale-dependent parameters.
+ Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+
+#include <stddef.h>
+#include <time.h>
+#include <langinfo.h>
+#include <limits.h>
+#include <errno.h>
+#include <locale.h>
+#include <langinfo.h>
+#include <sys/types.h>
+
+/* Structure describing locale data in core for a category. */
+struct locale_data
+{
+ const char *name;
+ const char *filedata; /* Region mapping the file data. */
+ off_t filesize; /* Size of the file (and the region). */
+ int mmaped; /* If nonzero the data is mmaped. */
+
+ unsigned int usage_count; /* Counter for users. */
+
+ unsigned int nstrings; /* Number of strings below. */
+ union locale_data_value
+ {
+ const wchar_t *wstr;
+ const char *string;
+ unsigned int word;
+ }
+ values[0]; /* Items, usually pointers into `filedata'. */
+};
+
+
+/* For each category declare two external variables (with weak references):
+ * extern const struct locale_data *_nl_current_CATEGORY;
+ * This points to the current locale's in-core data for CATEGORY.
+ * extern const struct locale_data _nl_C_CATEGORY;
+ * This contains the built-in "C"/"POSIX" locale's data for CATEGORY.
+ * Both are weak references; if &_nl_current_CATEGORY is zero,
+ * then nothing is using the locale data. */
+#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
+extern struct locale_data *_nl_current_##category; \
+extern struct locale_data _nl_C_##category;
+#include "categories.c"
+#undef DEFINE_CATEGORY
+
+
+
+/* Array indexed by category of pointers to _nl_C_CATEGORY slots.
+ * Elements are zero for categories whose data is never used. */
+struct locale_data *const _nl_C[] =
+{
+#define DEFINE_CATEGORY(category, category_name, items, a, b, c, d) \
+ [category] = &_nl_C_##category,
+#include "categories.c"
+#undef DEFINE_CATEGORY
+};
+
+
+
+/* Return a string with the data for locale-dependent parameter ITEM. */
+
+char * nl_langinfo (nl_item item)
+{
+ int category = _NL_ITEM_CATEGORY (item);
+ unsigned int index = _NL_ITEM_INDEX (item);
+ const struct locale_data *data;
+
+ if (category < 0 || category >= LC_ALL)
+ /* Bogus category: bogus item. */
+ return (char *) "";
+
+ data = _nl_C[category];
+
+ if (index >= data->nstrings)
+ /* Bogus index for this category: bogus item. */
+ return (char *) "";
+
+ /* Return the string for the specified item. */
+ return (char *) data->values[index].string;
+}