1 // -*- C++ -*-
2 /* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
3 Written by James Clark (jjc@jclark.com)
4
5 This file is part of groff.
6
7 groff is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
10 version.
11
12 groff is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16
17 You should have received a copy of the GNU General Public License along
18 with groff; see the file COPYING. If not, write to the Free Software
19 Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
20
21 #ifdef HAVE_CC_LIMITS_H
22 #include <limits.h>
23 #else /* not HAVE_CC_LIMITS_H */
24 #ifndef UCHAR_MAX
25 #define UCHAR_MAX 255
26 #endif
27 #endif /* not HAVE_CC_LIMITS_H */
28
29 enum cset_builtin { CSET_BUILTIN };
30
31 class cset {
32 public:
33 cset();
34 cset(cset_builtin);
35 cset(const char *);
36 cset(const unsigned char *);
37 int operator()(unsigned char) const;
38
39 cset &operator|=(const cset &);
40 cset &operator|=(unsigned char);
41
42 friend class cset_init;
43 private:
44 char v[UCHAR_MAX+1];
45 void clear();
46 };
47
operator()48 inline int cset::operator()(unsigned char c) const
49 {
50 return v[c];
51 }
52
53 inline cset &cset::operator|=(unsigned char c)
54 {
55 v[c] = 1;
56 return *this;
57 }
58
59 extern cset csalpha;
60 extern cset csupper;
61 extern cset cslower;
62 extern cset csdigit;
63 extern cset csxdigit;
64 extern cset csspace;
65 extern cset cspunct;
66 extern cset csalnum;
67 extern cset csprint;
68 extern cset csgraph;
69 extern cset cscntrl;
70
71 static class cset_init {
72 static int initialised;
73 public:
74 cset_init();
75 } _cset_init;
76