1// -*- C++ -*-
2/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
3     Written by James Clark (jjc@jclark.com)
4
5This file is part of groff.
6
7groff is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 2, or (at your option) any later
10version.
11
12groff is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
15for more details.
16
17You should have received a copy of the GNU General Public License along
18with groff; see the file COPYING.  If not, write to the Free Software
19Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
20
21/* $FreeBSD$ */
22
23#include <ctype.h>
24#ifdef __FreeBSD__
25#include <locale.h>
26#endif
27#include "cmap.h"
28
29cmap cmlower(CMAP_BUILTIN);
30cmap cmupper(CMAP_BUILTIN);
31
32#if defined(isascii) && !defined(__FreeBSD__)
33#define ISASCII(c) isascii(c)
34#else
35#define ISASCII(c) (1)
36#endif
37
38cmap::cmap()
39{
40  unsigned char *p = v;
41  for (int i = 0; i <= UCHAR_MAX; i++)
42    p[i] = i;
43}
44
45cmap::cmap(cmap_builtin)
46{
47  // these are initialised by cmap_init::cmap_init()
48}
49
50int cmap_init::initialised = 0;
51
52cmap_init::cmap_init()
53{
54  if (initialised)
55    return;
56  initialised = 1;
57#ifdef __FreeBSD__
58  (void) setlocale(LC_CTYPE, "");
59#endif
60  for (int i = 0; i <= UCHAR_MAX; i++) {
61    cmupper.v[i] = ISASCII(i) && islower(i) ? toupper(i) : i;
62    cmlower.v[i] = ISASCII(i) && isupper(i) ? tolower(i) : i;
63  }
64}
65