* 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.

5 files changed, 426 insertions, 6 deletions

diff --git a/time/Makefile b/time/Makefile
index 246b9803fa..da51316069 100644
--- a/time/Makefile
+++ b/time/Makefile
@@ -30,6 +30,7 @@ routines := offtime asctime clock ctime ctime_r difftime \
 	    stime dysize timegm ftime			 \
 	    getdate strptime strptime_l			 \
 	    strftime wcsftime strftime_l wcsftime_l
+aux :=	    era alt_digit lc-time-cleanup
 distribute := datemsk
 
 tests	:= test_time clocktest tst-posixtz tst-strptime tst_wcsftime \
diff --git a/time/alt_digit.c b/time/alt_digit.c
new file mode 100644
index 0000000000..1a81ba1254
--- /dev/null
+++ b/time/alt_digit.c
@@ -0,0 +1,193 @@
+/* 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;
+}
diff --git a/time/era.c b/time/era.c
new file mode 100644
index 0000000000..a8d2237338
--- /dev/null
+++ b/time/era.c
@@ -0,0 +1,177 @@
+/* Helper functions used by strftime/strptime to handle locale-specific "eras".
+   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_WORD(item)	(current->values[_NL_ITEM_INDEX (item)].word)
+
+#define ERA_DATE_CMP(a, b) \
+  (a[0] < b[0] || (a[0] == b[0] && (a[1] < b[1]				      \
+				    || (a[1] == b[1] && a[2] <= b[2]))))
+
+/* Look up the era information in CURRENT's locale strings and
+   cache it in CURRENT->private.  */
+static void internal_function
+_nl_init_era_entries (struct locale_data *current)
+{
+  size_t cnt;
+  struct lc_time_data *data;
+
+  /* Avoid touching CURRENT if there is no data at all, for _nl_C_LC_TIME.  */
+  if (CURRENT_WORD (_NL_TIME_ERA_NUM_ENTRIES) == 0)
+    return;
+
+  __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->era_initialized)
+    {
+      size_t new_num_eras = CURRENT_WORD (_NL_TIME_ERA_NUM_ENTRIES);
+      if (new_num_eras == 0)
+	{
+	  if (data->eras != NULL)
+	    {
+	      free (data->eras);
+	      data->eras = NULL;
+	    }
+	}
+      else
+	{
+	  struct era_entry *new_eras = data->eras;
+
+	  if (data->num_eras != new_num_eras)
+	    new_eras =
+	      (struct era_entry *) realloc (data->eras,
+					    new_num_eras
+					    * sizeof (struct era_entry));
+	  if (new_eras == NULL)
+	    {
+	      free (data->eras);
+	      data->num_eras = 0;
+	      data->eras = NULL;
+	    }
+          else
+	    {
+	      const char *ptr = CURRENT (_NL_TIME_ERA_ENTRIES);
+	      data->num_eras = new_num_eras;
+	      data->eras = new_eras;
+
+	      for (cnt = 0; cnt < new_num_eras; ++cnt)
+		{
+		  const char *base_ptr = ptr;
+		  memcpy ((void *) (new_eras + cnt), (const void *) ptr,
+			  sizeof (uint32_t) * 8);
+
+		  if (ERA_DATE_CMP(new_eras[cnt].start_date,
+				   new_eras[cnt].stop_date))
+		    if (new_eras[cnt].direction == (uint32_t) '+')
+		      new_eras[cnt].absolute_direction = 1;
+		    else
+		      new_eras[cnt].absolute_direction = -1;
+		  else
+		    if (new_eras[cnt].direction == (uint32_t) '+')
+		      new_eras[cnt].absolute_direction = -1;
+		    else
+		      new_eras[cnt].absolute_direction = 1;
+
+		  /* Skip numeric values.  */
+		  ptr += sizeof (uint32_t) * 8;
+
+		  /* Set and skip era name.  */
+		  new_eras[cnt].era_name = ptr;
+		  ptr = strchr (ptr, '\0') + 1;
+
+		  /* Set and skip era format.  */
+		  new_eras[cnt].era_format = ptr;
+		  ptr = strchr (ptr, '\0') + 1;
+
+		  ptr += 3 - (((ptr - (const char *) base_ptr) + 3) & 3);
+
+		  /* Set and skip wide era name.  */
+		  new_eras[cnt].era_wname = (wchar_t *) ptr;
+		  ptr = (char *) (wcschr ((wchar_t *) ptr, L'\0') + 1);
+
+		  /* Set and skip wide era format.  */
+		  new_eras[cnt].era_wformat = (wchar_t *) ptr;
+		  ptr = (char *) (wcschr ((wchar_t *) ptr, L'\0') + 1);
+		}
+	    }
+	}
+
+      data->era_initialized = 1;
+    }
+
+ out:
+  __libc_lock_unlock (__libc_setlocale_lock);
+}
+
+struct era_entry *
+internal_function
+_nl_get_era_entry (const struct tm *tp, struct locale_data *current)
+{
+  if (current->private.time == NULL || !current->private.time->era_initialized)
+    _nl_init_era_entries (current);
+
+  if (current->private.time != NULL)
+    {
+      /* Now compare date with the available eras.  */
+      const int32_t tdate[3] = { tp->tm_year, tp->tm_mon, tp->tm_mday };
+      size_t cnt;
+      for (cnt = 0; cnt < current->private.time->num_eras; ++cnt)
+	if ((ERA_DATE_CMP (current->private.time->eras[cnt].start_date, tdate)
+	     && ERA_DATE_CMP (tdate,
+			      current->private.time->eras[cnt].stop_date))
+	    || (ERA_DATE_CMP (current->private.time->eras[cnt].stop_date,
+			      tdate)
+		&& ERA_DATE_CMP (tdate,
+				 current->private.time->eras[cnt].start_date)))
+	  return &current->private.time->eras[cnt];
+    }
+
+  return NULL;
+}
+
+
+struct era_entry *
+internal_function
+_nl_select_era_entry (int cnt, struct locale_data *current)
+{
+  if (current->private.time == NULL || !current->private.time->era_initialized)
+    _nl_init_era_entries (current);
+
+  return (current->private.time == NULL
+	  ? NULL : &current->private.time->eras[cnt]);
+}
diff --git a/time/lc-time-cleanup.c b/time/lc-time-cleanup.c
new file mode 100644
index 0000000000..7972700686
--- /dev/null
+++ b/time/lc-time-cleanup.c
@@ -0,0 +1,41 @@
+/* Cleanup code for data structures kept by strftime/strptime helper functions.
+   Copyright (C) 2002 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 <stdlib.h>
+
+void internal_function
+_nl_cleanup_time (struct locale_data *locale)
+{
+  struct lc_time_data *const data = locale->private.time;
+  if (data != NULL)
+    {
+      locale->private.time = NULL;
+      locale->private.cleanup = NULL;
+
+      if (data->eras != NULL)
+	free (data->eras);
+      if (data->alt_digits != NULL)
+	free (data->alt_digits);
+      if (data->walt_digits != NULL)
+	free (data->walt_digits);
+
+      free (data);
+    }
+}
diff --git a/time/strftime.c b/time/strftime.c
index 986124399b..5215f567f0 100644
--- a/time/strftime.c
+++ b/time/strftime.c
@@ -315,10 +315,16 @@ static const CHAR_T zeroes[16] = /* "0000000000000000" */
 # define LOCALE_PARAM , loc
 # define LOCALE_ARG , loc
 # define LOCALE_PARAM_DECL __locale_t loc;
+# define HELPER_LOCALE_ARG , current
 #else
 # define LOCALE_PARAM
 # define LOCALE_ARG
 # define LOCALE_PARAM_DECL
+# ifdef _LIBC
+#  define HELPER_LOCALE_ARG , _NL_CURRENT_DATA (LC_TIME)
+# else
+#  define HELPER_LOCALE_ARG
+# endif
 #endif
 
 #ifdef COMPILE_WIDE
@@ -494,7 +500,7 @@ my_strftime (s, maxsize, format, tp ut_argument LOCALE_PARAM)
       LOCALE_PARAM_DECL
 {
 #if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL
-  const struct locale_data *const current = loc->__locales[LC_TIME];
+  struct locale_data *const current = loc->__locales[LC_TIME];
 #endif
 
   int hour12 = tp->tm_hour;
@@ -880,7 +886,7 @@ my_strftime (s, maxsize, format, tp ut_argument LOCALE_PARAM)
 	  if (modifier == L_('E'))
 	    {
 #if HAVE_STRUCT_ERA_ENTRY
-	      struct era_entry *era = _nl_get_era_entry (tp);
+	      struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG);
 	      if (era)
 		{
 # ifdef COMPILE_WIDE
@@ -956,9 +962,11 @@ my_strftime (s, maxsize, format, tp ut_argument LOCALE_PARAM)
 	      /* Get the locale specific alternate representation of
 		 the number NUMBER_VALUE.  If none exist NULL is returned.  */
 # ifdef COMPILE_WIDE
-	      const wchar_t *cp = _nl_get_walt_digit (number_value);
+	      const wchar_t *cp = _nl_get_walt_digit (number_value
+						      HELPER_LOCALE_ARG);
 # else
-	      const char *cp = _nl_get_alt_digit (number_value);
+	      const char *cp = _nl_get_alt_digit (number_value
+						  HELPER_LOCALE_ARG);
 # endif
 
 	      if (cp != NULL)
@@ -1238,7 +1246,7 @@ my_strftime (s, maxsize, format, tp ut_argument LOCALE_PARAM)
 	  if (modifier == 'E')
 	    {
 #if HAVE_STRUCT_ERA_ENTRY
-	      struct era_entry *era = _nl_get_era_entry (tp);
+	      struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG);
 	      if (era)
 		{
 # ifdef COMPILE_WIDE
@@ -1263,7 +1271,7 @@ my_strftime (s, maxsize, format, tp ut_argument LOCALE_PARAM)
 	  if (modifier == L_('E'))
 	    {
 #if HAVE_STRUCT_ERA_ENTRY
-	      struct era_entry *era = _nl_get_era_entry (tp);
+	      struct era_entry *era = _nl_get_era_entry (tp HELPER_LOCALE_ARG);
 	      if (era)
 		{
 		  int delta = tp->tm_year - era->start_date[0];