1/*	$NetBSD: cmap.cpp,v 1.1.1.1 2016/01/13 18:41:48 christos Exp $	*/
2
3// -*- C++ -*-
4/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
5     Written by James Clark (jjc@jclark.com)
6
7This file is part of groff.
8
9groff is free software; you can redistribute it and/or modify it under
10the terms of the GNU General Public License as published by the Free
11Software Foundation; either version 2, or (at your option) any later
12version.
13
14groff is distributed in the hope that it will be useful, but WITHOUT ANY
15WARRANTY; without even the implied warranty of MERCHANTABILITY or
16FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
17for more details.
18
19You should have received a copy of the GNU General Public License along
20with groff; see the file COPYING.  If not, write to the Free Software
21Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
22
23#include <ctype.h>
24#include "cmap.h"
25
26cmap cmlower(CMAP_BUILTIN);
27cmap cmupper(CMAP_BUILTIN);
28
29#ifdef isascii
30#define ISASCII(c) isascii(c)
31#else
32#define ISASCII(c) (1)
33#endif
34
35cmap::cmap()
36{
37  unsigned char *p = v;
38  for (int i = 0; i <= UCHAR_MAX; i++)
39    p[i] = i;
40}
41
42cmap::cmap(cmap_builtin)
43{
44  // these are initialised by cmap_init::cmap_init()
45}
46
47int cmap_init::initialised = 0;
48
49cmap_init::cmap_init()
50{
51  if (initialised)
52    return;
53  initialised = 1;
54  for (int i = 0; i <= UCHAR_MAX; i++) {
55    cmupper.v[i] = ISASCII(i) && islower(i) ? toupper(i) : i;
56    cmlower.v[i] = ISASCII(i) && isupper(i) ? tolower(i) : i;
57  }
58}
59