1 files changed, 132 insertions, 0 deletions
diff --git a/locale/programs/charset.c b/locale/programs/charset.c
new file mode 100644
index 0000000000..2e2f63bd9a
--- /dev/null
+++ b/locale/programs/charset.c
@@ -0,0 +1,132 @@
+/* Copyright (C) 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 <alloca.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "error.h"
+#include "charset.h"
+
+
+static void
+insert_char (struct linereader *lr, struct charset_t *cs, int bytes,
+	     unsigned int value, const char *from, const char *to);
+
+
+void
+charset_new_char (struct linereader *lr, struct charset_t *cs, int bytes,
+		  unsigned int value, const char *from, const char *to)
+{
+  if (bytes < cs->mb_cur_min)
+    lr_error (lr, _("too few bytes in character encoding"));
+  else if (bytes > cs->mb_cur_max)
+    lr_error (lr, _("too many bytes in character encoding"));
+  else
+    insert_char (lr, cs, bytes, value, from, to);
+}
+
+
+void
+charset_new_unicode (struct linereader *lr, struct charset_t *cs, int bytes,
+		     unsigned int value, const char *from, const char *to)
+{
+  /* For now: perhaps <Uxxxx> support will be removed again... */
+  insert_char (lr, cs, bytes, value, from, to);
+}
+
+
+unsigned int
+charset_find_value (const struct charset_t *cs, const char *name, size_t len)
+{
+  void *result;
+
+  if (find_entry ((hash_table *) &cs->char_table, name, len, &result) < 0)
+    return ILLEGAL_CHAR_VALUE;
+
+  return (unsigned int) result;
+}
+
+
+static void
+insert_char (struct linereader *lr, struct charset_t *cs, int bytes,
+	     unsigned int value, const char *from, const char *to)
+{
+  const char *cp;
+  char *buf;
+  int prefix_len, len1, len2;
+  unsigned int from_nr, to_nr, cnt;
+
+  if (to == NULL)
+    {
+      if (insert_entry (&cs->char_table, from, strlen (from), (void *) value)
+	  < 0)
+	lr_error (lr, _("duplicate character name `%s'"), from);
+
+      return;
+    }
+
+  /* We have a range: the names must have names with equal prefixes
+     and an equal number of digits, where the second number is greater
+     or equal than the first.  */
+  len1 = strlen (from);
+  len2 = strlen (to);
+
+  if (len1 != len2)
+    {
+    illegal_range:
+      lr_error (lr, _("illegal names for character range"));
+      return;
+    }
+
+  cp = &from[len1 - 1];
+  while (isdigit (*cp) && cp >= from)
+    --cp;
+
+  prefix_len = (cp - from) + 1;
+
+  if (cp == &from[len1 - 1] || strncmp (from, to, prefix_len) != 0)
+    goto illegal_range;
+
+  from_nr = strtoul (&from[prefix_len], NULL, 10);
+  to_nr = strtoul (&to[prefix_len], NULL, 10);
+
+  if (from_nr > to_nr)
+    {
+      lr_error (lr, _("upper limit in range is not smaller then lower limit"));
+      return;
+    }
+
+  buf = alloca (len1 + 1);
+  memcpy (buf, from, prefix_len);
+
+  for (cnt = from_nr; cnt <= to_nr; ++cnt)
+    {
+      sprintf (&buf[prefix_len], "%0d", cnt);
+
+      if (insert_entry (&cs->char_table, buf, len1, (void *) cnt) < 0)
+	lr_error (lr, _("duplicate character name `%s'"), buf);
+    }
+}