1 // -*- C++ -*-
2 /* Copyright (C) 1989, 1990, 1991, 1992, 2004 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, 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
28 #include "lib.h"
29 #include "cset.h"
30
31 cset csalpha(CSET_BUILTIN);
32 cset csupper(CSET_BUILTIN);
33 cset cslower(CSET_BUILTIN);
34 cset csdigit(CSET_BUILTIN);
35 cset csxdigit(CSET_BUILTIN);
36 cset csspace(CSET_BUILTIN);
37 cset cspunct(CSET_BUILTIN);
38 cset csalnum(CSET_BUILTIN);
39 cset csprint(CSET_BUILTIN);
40 cset csgraph(CSET_BUILTIN);
41 cset cscntrl(CSET_BUILTIN);
42
43 #if defined(isascii) && !defined(__FreeBSD__)
44 #define ISASCII(c) isascii(c)
45 #else
46 #define ISASCII(c) (1)
47 #endif
48
clear()49 void cset::clear()
50 {
51 char *p = v;
52 for (int i = 0; i <= UCHAR_MAX; i++)
53 p[i] = 0;
54 }
55
cset()56 cset::cset()
57 {
58 clear();
59 }
60
cset(const char * s)61 cset::cset(const char *s)
62 {
63 clear();
64 while (*s)
65 v[(unsigned char)*s++] = 1;
66 }
67
cset(const unsigned char * s)68 cset::cset(const unsigned char *s)
69 {
70 clear();
71 while (*s)
72 v[*s++] = 1;
73 }
74
cset(cset_builtin)75 cset::cset(cset_builtin)
76 {
77 // these are initialised by cset_init::cset_init()
78 }
79
operator |=(const cset & cs)80 cset &cset::operator|=(const cset &cs)
81 {
82 for (int i = 0; i <= UCHAR_MAX; i++)
83 if (cs.v[i])
84 v[i] = 1;
85 return *this;
86 }
87
88
89 int cset_init::initialised = 0;
90
cset_init()91 cset_init::cset_init()
92 {
93 if (initialised)
94 return;
95 initialised = 1;
96 #ifdef __FreeBSD__
97 (void) setlocale(LC_CTYPE, "");
98 #endif
99 for (int i = 0; i <= UCHAR_MAX; i++) {
100 csalpha.v[i] = ISASCII(i) && isalpha(i);
101 csupper.v[i] = ISASCII(i) && isupper(i);
102 cslower.v[i] = ISASCII(i) && islower(i);
103 csdigit.v[i] = ISASCII(i) && isdigit(i);
104 csxdigit.v[i] = ISASCII(i) && isxdigit(i);
105 csspace.v[i] = ISASCII(i) && isspace(i);
106 cspunct.v[i] = ISASCII(i) && ispunct(i);
107 csalnum.v[i] = ISASCII(i) && isalnum(i);
108 csprint.v[i] = ISASCII(i) && isprint(i);
109 csgraph.v[i] = ISASCII(i) && isgraph(i);
110 cscntrl.v[i] = ISASCII(i) && iscntrl(i);
111 }
112 }
113