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
7 This file is part of groff.
8
9 groff is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 2, or (at your option) any later
12 version.
13
14 groff is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 for more details.
18
19 You should have received a copy of the GNU General Public License along
20 with groff; see the file COPYING. If not, write to the Free Software
21 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
22
23 #include <ctype.h>
24 #include "cmap.h"
25
26 cmap cmlower(CMAP_BUILTIN);
27 cmap cmupper(CMAP_BUILTIN);
28
29 #ifdef isascii
30 #define ISASCII(c) isascii(c)
31 #else
32 #define ISASCII(c) (1)
33 #endif
34
cmap()35 cmap::cmap()
36 {
37 unsigned char *p = v;
38 for (int i = 0; i <= UCHAR_MAX; i++)
39 p[i] = i;
40 }
41
cmap(cmap_builtin)42 cmap::cmap(cmap_builtin)
43 {
44 // these are initialised by cmap_init::cmap_init()
45 }
46
47 int cmap_init::initialised = 0;
48
cmap_init()49 cmap_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