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/* -*- Mode: C++ -*-
* Worldvisions Weaver Software:
* Copyright (C) 2005 Net Integration Technologies, Inc.
*
* Implementation of an efficient lookup for a set characters.
*
* It is, however, a little space intensive, but you should statically
* create them in your functions, and then they won't be so bad.
*/
#include "wvstringmask.h"
WvStringMask::WvStringMask(WvStringParm s)
{
zap();
set(s, true);
}
WvStringMask::WvStringMask(char c)
{
zap();
set(c, true);
}
bool WvStringMask::operator[](const char c) const
{
unsigned char uc = c;
return _set[uc];
}
const char WvStringMask::first() const
{
return _first;
}
void WvStringMask::zap()
{
memset(_set, 0, sizeof(bool) * sizeof(_set));
_first = '\0';
}
void WvStringMask::set(const char c, bool value)
{
if (!_first)
_first = c;
_set[unsigned(c)] = value;
}
void WvStringMask::set(WvStringParm s, bool value)
{
if (!s.isnull())
{
const char *c = s.cstr();
if (!_first)
_first = *c;
while (*c)
{
_set[unsigned(*c)] = value;
++c;
}
}
}
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