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authorRoland McGrath <roland@gnu.org>2002-08-28 23:11:21 +0000
committerRoland McGrath <roland@gnu.org>2002-08-28 23:11:21 +0000
commitdf9f41c94286bcaac949fd490e11bde61b8a9567 (patch)
tree2d7deceaa2e48d4dc55a4be335ef9fc010ca161d /time/alt_digit.c
parent6e68eecf7b2d778e0bd488466a1798c3b3fd4dcc (diff)
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* 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.
Diffstat (limited to 'time/alt_digit.c')
-rw-r--r--time/alt_digit.c193
1 files changed, 193 insertions, 0 deletions
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;
+}