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-rw-r--r--locale/programs/ld-numeric.c208
1 files changed, 208 insertions, 0 deletions
diff --git a/locale/programs/ld-numeric.c b/locale/programs/ld-numeric.c
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+/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
+
+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 <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;
+
+  /* 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)						      \
+    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')
+    {
+      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)
+    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;
+  u32_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] = idx[cnt - 3] + iov[cnt - 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 > 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");
+    }
+}