1 files changed, 97 insertions, 0 deletions
diff --git a/tests/uniwidth/test-uc_width2.c b/tests/uniwidth/test-uc_width2.c
new file mode 100644
index 00000000..2bf143c2
--- /dev/null
+++ b/tests/uniwidth/test-uc_width2.c
@@ -0,0 +1,97 @@
+/* Test of uc_width() function.
+   Copyright (C) 2007-2008 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include "uniwidth.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#define ASSERT(expr) \
+  do									     \
+    {									     \
+      if (!(expr))							     \
+        {								     \
+          fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+          fflush (stderr);						     \
+          abort ();							     \
+        }								     \
+    }									     \
+  while (0)
+
+/* One of 0, '0', '1', 'A', '2'.  */
+static char current_width;
+/* The interval for which the current_width holds.  */
+static ucs4_t current_start;
+static ucs4_t current_end;
+
+static void
+finish_interval (void)
+{
+  if (current_width != 0)
+    {
+      if (current_start == current_end)
+	printf ("%04X\t\t%c\n", (unsigned) current_start, current_width);
+      else
+	printf ("%04X..%04X\t%c\n", (unsigned) current_start,
+		(unsigned) current_end, current_width);
+      current_width = 0;
+    }
+}
+
+static void
+add_to_interval (ucs4_t uc, char width)
+{
+  if (current_width == width && uc == current_end + 1)
+    current_end = uc;
+  else
+    {
+      finish_interval ();
+      current_width = width;
+      current_start = current_end = uc;
+    }
+}
+
+int
+main ()
+{
+  ucs4_t uc;
+
+  for (uc = 0; uc < 0x110000; uc++)
+    {
+      int w1 = uc_width (uc, "UTF-8");
+      int w2 = uc_width (uc, "GBK");
+      char width =
+	(w1 == 0 && w2 == 0 ? '0' :
+	 w1 == 1 && w2 == 1 ? '1' :
+	 w1 == 1 && w2 == 2 ? 'A' :
+	 w1 == 2 && w2 == 2 ? '2' :
+	 0);
+      if (width == 0)
+	{
+	  /* uc must be a control character.  */
+	  ASSERT (w1 < 0 && w2 < 0);
+	}
+      else
+	add_to_interval (uc, width);
+    }
+  finish_interval ();
+
+  return 0;
+}