/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.
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. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <alloca.h>
#include <langinfo.h>
#include <string.h>
/* Undefine following line in production version. */
/* #define NDEBUG 1 */
#include <assert.h>
#include "locales.h"
#include "localeinfo.h"
#include "stringtrans.h"
void *xmalloc (size_t __n);
void *xrealloc (void *__ptr, size_t __n);
/* The real definition of the struct for the LC_NUMERIC locale. */
struct locale_numeric_t
{
const char *decimal_point;
const char *thousands_sep;
char *grouping;
size_t grouping_max;
size_t grouping_act;
};
void
numeric_startup (struct linereader *lr, struct localedef_t *locale,
struct charset_t *charset)
{
struct locale_numeric_t *numeric;
/* We have a definition for LC_NUMERIC. */
copy_posix.mask &= ~(1 << LC_NUMERIC);
/* It is important that we always use UCS1 encoding for strings now. */
encoding_method = ENC_UCS1;
locale->categories[LC_NUMERIC].numeric = numeric =
(struct locale_numeric_t *) xmalloc (sizeof (struct locale_numeric_t));
memset (numeric, '\0', sizeof (struct locale_numeric_t));
numeric->grouping_max = 80;
numeric->grouping = (char *) xmalloc (numeric->grouping_max);
numeric->grouping_act = 0;
}
void
numeric_finish (struct localedef_t *locale)
{
struct locale_numeric_t *numeric = locale->categories[LC_NUMERIC].numeric;
#define TEST_ELEM(cat) \
if (numeric->cat == NULL && !be_quiet) \
error (0, 0, _("field `%s' in category `%s' not defined"), \
#cat, "LC_NUMERIC")
TEST_ELEM (decimal_point);
TEST_ELEM (thousands_sep);
/* The decimal point must not be empty. This is not said explicitly
in POSIX but ANSI C (ISO/IEC 9899) says in 4.4.2.1 it has to be
!= "". */
if (numeric->decimal_point[0] == '\0' && !be_quiet)
{
error (0, 0, _("\
value for field `%s' in category `%s' must not be the empty string"),
"decimal_point", "LC_NUMERIC");
}
if (numeric->grouping_act == 0 && !be_quiet)
error (0, 0, _("field `%s' in category `%s' not defined"),
"grouping", "LC_NUMERIC");
}
void
numeric_output (struct localedef_t *locale, const char *output_path)
{
struct locale_numeric_t *numeric = locale->categories[LC_NUMERIC].numeric;
struct iovec iov[2 + _NL_ITEM_INDEX (_NL_NUM_LC_NUMERIC)];
struct locale_file data;
u_int32_t idx[_NL_ITEM_INDEX (_NL_NUM_LC_NUMERIC)];
size_t cnt = 0;
if ((locale->binary & (1 << LC_NUMERIC)) != 0)
{
iov[0].iov_base = numeric;
iov[0].iov_len = locale->len[LC_NUMERIC];
write_locale_data (output_path, "LC_NUMERIC", 1, iov);
return;
}
data.magic = LIMAGIC (LC_NUMERIC);
data.n = _NL_ITEM_INDEX (_NL_NUM_LC_NUMERIC);
iov[cnt].iov_base = (void *) &data;
iov[cnt].iov_len = sizeof (data);
++cnt;
iov[cnt].iov_base = (void *) idx;
iov[cnt].iov_len = sizeof (idx);
++cnt;
idx[cnt - 2] = iov[0].iov_len + iov[1].iov_len;
iov[cnt].iov_base = (void *) (numeric->decimal_point ?: "");
iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
++cnt;
idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
iov[cnt].iov_base = (void *) (numeric->thousands_sep ?: "");
iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
++cnt;
idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
iov[cnt].iov_base = alloca (numeric->grouping_act + 1);
iov[cnt].iov_len = numeric->grouping_act + 1;
memcpy (iov[cnt].iov_base, numeric->grouping, numeric->grouping_act);
((char *) iov[cnt].iov_base)[numeric->grouping_act] = '\0';
assert (cnt + 1 == 2 + _NL_ITEM_INDEX (_NL_NUM_LC_NUMERIC));
write_locale_data (output_path, "LC_NUMERIC",
2 + _NL_ITEM_INDEX (_NL_NUM_LC_NUMERIC), iov);
}
void
numeric_add (struct linereader *lr, struct localedef_t *locale,
enum token_t tok, struct token *code,
struct charset_t *charset)
{
struct locale_numeric_t *numeric = locale->categories[LC_NUMERIC].numeric;
switch (tok)
{
#define STR_ELEM(cat) \
case tok_##cat: \
if (numeric->cat != NULL) \
lr_error (lr, _("\
field `%s' in category `%s' declared more than once"), \
#cat, "LC_NUMERIC"); \
else if (code->val.str.start == NULL) \
{ \
lr_error (lr, _("unknown character in field `%s' of category `%s'"),\
#cat, "LC_NUMERIC"); \
numeric->cat = ""; \
} \
else \
numeric->cat = code->val.str.start; \
break
STR_ELEM (decimal_point);
STR_ELEM (thousands_sep);
case tok_grouping:
if (numeric->grouping_act == numeric->grouping_max)
{
numeric->grouping_max *= 2;
numeric->grouping = (char *) xrealloc (numeric->grouping,
numeric->grouping_max);
}
if (numeric->grouping_act > 0
&& (numeric->grouping[numeric->grouping_act - 1] == '\177'))
{
lr_error (lr, _("\
`-1' must be last entry in `%s' field in `%s' category"),
"grouping", "LC_NUMERIC");
--numeric->grouping_act;
}
if (code->tok == tok_minus1)
numeric->grouping[numeric->grouping_act++] = '\177';
else if (code->val.num == 0)
/* A value of 0 disables grouping from here on but we must
not store a NUL character since this terminates the string.
Use something different which must not be used otherwise. */
numeric->grouping[numeric->grouping_act++] = '\377';
else if (code->val.num > 126)
lr_error (lr, _("\
values for field `%s' in category `%s' must be smaller than 127"),
"grouping", "LC_NUMERIC");
else
numeric->grouping[numeric->grouping_act++] = code->val.num;
break;
default:
assert (! "unknown token in category `LC_NUMERIC': should not happen");
}
}