1114402Sru// -*- C++ -*-
2114402Sru/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
3114402Sru     Written by James Clark (jjc@jclark.com)
4114402Sru
5114402SruThis file is part of groff.
6114402Sru
7114402Srugroff is free software; you can redistribute it and/or modify it under
8114402Sruthe terms of the GNU General Public License as published by the Free
9114402SruSoftware Foundation; either version 2, or (at your option) any later
10114402Sruversion.
11114402Sru
12114402Srugroff is distributed in the hope that it will be useful, but WITHOUT ANY
13114402SruWARRANTY; without even the implied warranty of MERCHANTABILITY or
14114402SruFITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
15114402Srufor more details.
16114402Sru
17114402SruYou should have received a copy of the GNU General Public License along
18114402Sruwith groff; see the file COPYING.  If not, write to the Free Software
19151503SruFoundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
20114402Sru
21114411Sru/* $FreeBSD$ */
22114411Sru
23114402Sru#include <ctype.h>
24114411Sru#ifdef __FreeBSD__
25114411Sru#include <locale.h>
26114411Sru#endif
27114402Sru#include "cmap.h"
28114402Sru
29114402Srucmap cmlower(CMAP_BUILTIN);
30114402Srucmap cmupper(CMAP_BUILTIN);
31114402Sru
32114411Sru#if defined(isascii) && !defined(__FreeBSD__)
33114402Sru#define ISASCII(c) isascii(c)
34114402Sru#else
35114402Sru#define ISASCII(c) (1)
36114402Sru#endif
37114402Sru
38114402Srucmap::cmap()
39114402Sru{
40114402Sru  unsigned char *p = v;
41114402Sru  for (int i = 0; i <= UCHAR_MAX; i++)
42114402Sru    p[i] = i;
43114402Sru}
44114402Sru
45114402Srucmap::cmap(cmap_builtin)
46114402Sru{
47114402Sru  // these are initialised by cmap_init::cmap_init()
48114402Sru}
49114402Sru
50114402Sruint cmap_init::initialised = 0;
51114402Sru
52114402Srucmap_init::cmap_init()
53114402Sru{
54114402Sru  if (initialised)
55114402Sru    return;
56114402Sru  initialised = 1;
57114411Sru#ifdef __FreeBSD__
58114411Sru  (void) setlocale(LC_CTYPE, "");
59114411Sru#endif
60114402Sru  for (int i = 0; i <= UCHAR_MAX; i++) {
61114402Sru    cmupper.v[i] = ISASCII(i) && islower(i) ? toupper(i) : i;
62114402Sru    cmlower.v[i] = ISASCII(i) && isupper(i) ? tolower(i) : i;
63114402Sru  }
64114402Sru}
65