1/* Test of uc_width() function.
2   Copyright (C) 2007-2010 Free Software Foundation, Inc.
3
4   This program is free software: you can redistribute it and/or modify
5   it under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 3 of the License, or
7   (at your option) any later version.
8
9   This program is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   GNU General Public License for more details.
13
14   You should have received a copy of the GNU General Public License
15   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
16
17/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
18
19#include <config.h>
20
21#include "uniwidth.h"
22
23#include <stdio.h>
24
25#include "macros.h"
26
27/* One of 0, '0', '1', 'A', '2'.  */
28static char current_width;
29/* The interval for which the current_width holds.  */
30static ucs4_t current_start;
31static ucs4_t current_end;
32
33static void
34finish_interval (void)
35{
36  if (current_width != 0)
37    {
38      if (current_start == current_end)
39        printf ("%04X\t\t%c\n", (unsigned) current_start, current_width);
40      else
41        printf ("%04X..%04X\t%c\n", (unsigned) current_start,
42                (unsigned) current_end, current_width);
43      current_width = 0;
44    }
45}
46
47static void
48add_to_interval (ucs4_t uc, char width)
49{
50  if (current_width == width && uc == current_end + 1)
51    current_end = uc;
52  else
53    {
54      finish_interval ();
55      current_width = width;
56      current_start = current_end = uc;
57    }
58}
59
60int
61main ()
62{
63  ucs4_t uc;
64
65  for (uc = 0; uc < 0x110000; uc++)
66    {
67      int w1 = uc_width (uc, "UTF-8");
68      int w2 = uc_width (uc, "GBK");
69      char width =
70        (w1 == 0 && w2 == 0 ? '0' :
71         w1 == 1 && w2 == 1 ? '1' :
72         w1 == 1 && w2 == 2 ? 'A' :
73         w1 == 2 && w2 == 2 ? '2' :
74         0);
75      if (width == 0)
76        {
77          /* uc must be a control character.  */
78          ASSERT (w1 < 0 && w2 < 0);
79        }
80      else
81        add_to_interval (uc, width);
82    }
83  finish_interval ();
84
85  return 0;
86}
87