glibc/time/alt_digit.c
Roland McGrath df9f41c942 * locale/lc-time.c (_nl_init_era_entries, _nl_get_era_entry,
_nl_select_era_entry): Moved to ...
	* time/era.c: ... here, new file.
	(_nl_init_era_entries, _nl_get_era_entry, _nl_select_era_entry):
	Add internal_function to definitions.  Take an additional argument
	giving the `struct locale_data *' to use.
	* locale/lc-time.c (_get_alt_digit, _nl_get_walt_digit,
	_nl_parse_alt_digit): Moved to ...
	* time/alt_digit.c: ... here, new file.
	* time/lc-time-cleanup.c: New file.
	* locale/lc-time.c (_nl_postload_time, free_mem): Functions removed.
	* locale/localeinfo.h (_nl_postload_time): Remove decl.
	(_nl_cleanup_time): Declare it.
	(_nl_get_era_entry, _nl_select_era_entry): Update decls.
	(_get_alt_digit, _nl_get_walt_digit, _nl_parse_alt_digit): Likewise.
	* time/Makefile (aux): New variable: era, alt_digit, lc-time-cleanup.
	* time/strftime.c: Pass locale data to helper functions.
	* time/strptime.c: Likewise.

	* locale/localeinfo.h (struct locale_data): New member `private'
	* locale/loadlocale.c (_nl_intern_locale_data): Initialize it.
	(_nl_unload_locale): Call LOCALE->private.cleanup if it is set.
	* locale/C-collate.c: Update initializer.
	* locale/C-identification.c: Likewise.
	* locale/C-measurement.c: Likewise.
	* locale/C-telephone.c: Likewise.
	* locale/C-address.c: Likewise.
	* locale/C-name.c: Likewise.
	* locale/C-paper.c: Likewise.
	* locale/C-time.c: Likewise.
	* locale/C-numeric.c: Likewise.
	* locale/C-monetary.c: Likewise.
	* locale/C-messages.c : Likewise.
	* locale/C-ctype.c: Likewise.

	* time/strptime.c [USE_IN_EXTENDED_LOCALE_MODEL] (_NL_CURRENT_WORD):
	Redefine this too.
2002-08-28 23:11:21 +00:00

194 lines
5.1 KiB
C

/* Helper functions used by strftime/strptime to handle alternate digits.
Copyright (C) 1995-2001,02 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include "../locale/localeinfo.h"
#include <bits/libc-lock.h>
#include <stdlib.h>
#include <wchar.h>
#include <string.h>
/* Some of the functions here must not be used while setlocale is called. */
__libc_lock_define (extern, __libc_setlocale_lock attribute_hidden)
#define CURRENT(item) (current->values[_NL_ITEM_INDEX (item)].string)
#define CURRENT_WSTR(item) \
((wchar_t *) current->values[_NL_ITEM_INDEX (item)].wstr)
static void
_nl_init_alt_digit (struct locale_data *current)
{
struct lc_time_data *data;
if (current->private.time == NULL)
{
current->private.time = malloc (sizeof *current->private.time);
if (current->private.time == NULL)
return;
memset (current->private.time, 0, sizeof *current->private.time);
current->private.cleanup = &_nl_cleanup_time;
}
data = current->private.time;
if (! data->alt_digits_initialized)
{
const char *ptr = CURRENT (ALT_DIGITS);
size_t cnt;
data->alt_digits_initialized = 1;
if (ptr != NULL)
{
data->alt_digits = malloc (100 * sizeof (const char *));
if (data->alt_digits != NULL)
for (cnt = 0; cnt < 100; ++cnt)
{
data->alt_digits[cnt] = ptr;
/* Skip digit format. */
ptr = strchr (ptr, '\0') + 1;
}
}
}
}
const char *
internal_function
_nl_get_alt_digit (unsigned int number, struct locale_data *current)
{
const char *result;
if (number >= 100 || CURRENT (ALT_DIGITS)[0] == '\0')
return NULL;
__libc_lock_lock (__libc_setlocale_lock);
if (current->private.time == NULL
|| ! current->private.time->alt_digits_initialized)
_nl_init_alt_digit (current);
result = ((current->private.time != NULL
&& current->private.time->alt_digits != NULL)
? current->private.time->alt_digits[number]
: NULL);
__libc_lock_unlock (__libc_setlocale_lock);
return result;
}
const wchar_t *
internal_function
_nl_get_walt_digit (unsigned int number, struct locale_data *current)
{
const wchar_t *result = NULL;
struct lc_time_data *data;
if (number >= 100 || CURRENT_WSTR (_NL_WALT_DIGITS)[0] == L'\0')
return NULL;
__libc_lock_lock (__libc_setlocale_lock);
if (current->private.time == NULL)
{
current->private.time = malloc (sizeof *current->private.time);
if (current->private.time == NULL)
goto out;
memset (current->private.time, 0, sizeof *current->private.time);
current->private.cleanup = &_nl_cleanup_time;
}
data = current->private.time;
if (! data->walt_digits_initialized)
{
const wchar_t *ptr = CURRENT_WSTR (_NL_WALT_DIGITS);
size_t cnt;
data->walt_digits_initialized = 1;
if (ptr != NULL)
{
data->walt_digits = malloc (100 * sizeof (const uint32_t *));
if (data->walt_digits != NULL)
for (cnt = 0; cnt < 100; ++cnt)
{
data->walt_digits[cnt] = ptr;
/* Skip digit format. */
ptr = wcschr (ptr, L'\0') + 1;
}
}
}
if (data->walt_digits != NULL)
result = data->walt_digits[number];
out:
__libc_lock_unlock (__libc_setlocale_lock);
return (wchar_t *) result;
}
int
internal_function
_nl_parse_alt_digit (const char **strp, struct locale_data *current)
{
const char *str = *strp;
int result = -1;
size_t cnt;
size_t maxlen = 0;
if (CURRENT_WSTR (_NL_WALT_DIGITS)[0] == L'\0')
return result;
__libc_lock_lock (__libc_setlocale_lock);
if (current->private.time == NULL
|| ! current->private.time->alt_digits_initialized)
_nl_init_alt_digit (current);
if (current->private.time != NULL &&
current->private.time->alt_digits != NULL)
/* Matching is not unambiguous. The alternative digits could be like
I, II, III, ... and the first one is a substring of the second
and third. Therefore we must keep on searching until we found
the longest possible match. Note that this is not specified in
the standard. */
for (cnt = 0; cnt < 100; ++cnt)
{
const char *const dig = current->private.time->alt_digits[cnt];
size_t len = strlen (dig);
if (len > maxlen && strncmp (dig, str, len) == 0)
{
maxlen = len;
result = (int) cnt;
}
}
__libc_lock_unlock (__libc_setlocale_lock);
if (result != -1)
*strp += maxlen;
return result;
}