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// -*- C++ -*-
/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com) */
#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);
#ifdef isascii
#define ISASCII(c) isascii(c)
#else
#define ISASCII(c) (1)
#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);
}
}
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