102 lines
2.4 KiB
C++
102 lines
2.4 KiB
C++
// -*- C++ -*-
|
|
/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
|
|
Written by James Clark (jjc@jclark.com)
|
|
|
|
This file is part of groff.
|
|
|
|
groff is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free
|
|
Software Foundation; either version 2, or (at your option) any later
|
|
version.
|
|
|
|
groff is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with groff; see the file COPYING. If not, write to the Free Software
|
|
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
#include <ctype.h>
|
|
#include "cset.h"
|
|
|
|
cset csalpha(CSET_BUILTIN);
|
|
cset csupper(CSET_BUILTIN);
|
|
cset cslower(CSET_BUILTIN);
|
|
cset csdigit(CSET_BUILTIN);
|
|
cset csxdigit(CSET_BUILTIN);
|
|
cset csspace(CSET_BUILTIN);
|
|
cset cspunct(CSET_BUILTIN);
|
|
cset csalnum(CSET_BUILTIN);
|
|
cset csprint(CSET_BUILTIN);
|
|
cset csgraph(CSET_BUILTIN);
|
|
cset cscntrl(CSET_BUILTIN);
|
|
|
|
#define ISASCII(c) isascii(c)
|
|
#if 0
|
|
#define ISASCII(c) 1 /* use this is you have an ANSI ctype.h */
|
|
#endif
|
|
|
|
void cset::clear()
|
|
{
|
|
char *p = v;
|
|
for (int i = 0; i <= UCHAR_MAX; i++)
|
|
p[i] = 0;
|
|
}
|
|
|
|
cset::cset()
|
|
{
|
|
clear();
|
|
}
|
|
|
|
cset::cset(const char *s)
|
|
{
|
|
clear();
|
|
while (*s)
|
|
v[(unsigned char)*s++] = 1;
|
|
}
|
|
|
|
cset::cset(const unsigned char *s)
|
|
{
|
|
clear();
|
|
while (*s)
|
|
v[*s++] = 1;
|
|
}
|
|
|
|
cset::cset(cset_builtin)
|
|
{
|
|
// these are initialised by cset_init::cset_init()
|
|
}
|
|
|
|
cset &cset::operator|=(const cset &cs)
|
|
{
|
|
for (int i = 0; i <= UCHAR_MAX; i++)
|
|
if (cs.v[i])
|
|
v[i] = 1;
|
|
return *this;
|
|
}
|
|
|
|
|
|
int cset_init::initialised = 0;
|
|
|
|
cset_init::cset_init()
|
|
{
|
|
if (initialised)
|
|
return;
|
|
initialised = 1;
|
|
for (int i = 0; i <= UCHAR_MAX; i++) {
|
|
csalpha.v[i] = ISASCII(i) && isalpha(i);
|
|
csupper.v[i] = ISASCII(i) && isupper(i);
|
|
cslower.v[i] = ISASCII(i) && islower(i);
|
|
csdigit.v[i] = ISASCII(i) && isdigit(i);
|
|
csxdigit.v[i] = ISASCII(i) && isxdigit(i);
|
|
csspace.v[i] = ISASCII(i) && isspace(i);
|
|
cspunct.v[i] = ISASCII(i) && ispunct(i);
|
|
csalnum.v[i] = ISASCII(i) && isalnum(i);
|
|
csprint.v[i] = ISASCII(i) && isprint(i);
|
|
csgraph.v[i] = ISASCII(i) && isgraph(i);
|
|
cscntrl.v[i] = ISASCII(i) && iscntrl(i);
|
|
}
|
|
}
|