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#include "astring.hpp"
// strings/astring.cpp - Functions for astring.hpp
//
// Copyright © 2013-2014 Ben Longbons <b.r.longbons@gmail.com>
//
// This file is part of The Mana World (Athena server)
//
// This program 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 3 of the License, or
// (at your option) any later version.
//
// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#include <cstdarg>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include "mstring.hpp"
#include "tstring.hpp"
#include "sstring.hpp"
#include "zstring.hpp"
#include "xstring.hpp"
#include "literal.hpp"
// doing sneaky tricks here
//#include "../poison.hpp"
namespace tmwa
{
namespace strings
{
static_assert(sizeof(AString) == 256, "AString");
static
void acpy(char (&dst)[255], const char (&src)[255])
{
std::copy(src + 0, src + 255, dst);
}
AString::AString()
: data{}, special()
{
new(r_ptr()) RString();
special = 255;
}
AString::AString(const AString& a)
: data(), special(a.special)
{
acpy(data, a.data);
if (special == 255)
new(r_ptr()) RString(*a.r_ptr());
}
AString::AString(AString&& a)
: data(), special(a.special)
{
acpy(data, a.data);
if (special == 255)
new(r_ptr()) RString(std::move(*a.r_ptr()));
}
AString& AString::operator = (const AString& a)
{
if (this == &a)
return *this;
if (special == 255)
r_ptr()->~RString();
acpy(data, a.data);
special = a.special;
if (special == 255)
new(r_ptr()) RString(*a.r_ptr());
return *this;
}
AString& AString::operator = (AString&& a)
{
std::swap(data, a.data);
std::swap(special, a.special);
return *this;
}
AString::AString(RString r)
: data{}, special()
{
new(r_ptr()) RString(std::move(r));
special = 255;
}
AString::~AString()
{
if (special == 255)
r_ptr()->~RString();
}
AString::AString(const MString& s)
: AString(s.begin(), s.end())
{
}
AString::AString(XPair p)
: AString(p.begin(), p.end())
{
}
AString::AString(const TString& t)
: AString(XString(t))
{
}
AString::AString(const SString& s)
: AString(XString(s))
{
}
AString::AString(ZString z)
: AString(XString(z))
{
}
AString::AString(XString x)
: AString()
{
if (const RString *r = x.base())
{
if (&*r->begin() == &*x.begin() && &*r->end() == &*x.end())
{
*this = *r;
return;
}
}
*this = AString(x.begin(), x.end());
}
AString::AString(LString l)
: AString(RString(l))
{
}
AString::iterator AString::begin() const
{
if (special == 255)
return &*r_ptr()->begin();
else
return data + 0;
}
AString::iterator AString::end() const
{
if (special == 255)
return &*r_ptr()->end();
else
return data + (255 - special);
}
const RString *AString::base() const
{
if (special == 255)
return r_ptr();
else
return nullptr;
}
const char *AString::c_str() const
{
return &*begin();
}
const char *decay_for_printf(const AString& as)
{
return as.c_str();
}
int do_vprint(AString& out, const char *fmt, va_list ap)
{
// TODO try with a fixed-size buffer first, then write
// directory into the allocated output?
int len;
{
va_list ap2;
va_copy(ap2, ap);
len = vsnprintf(nullptr, 0, fmt, ap2);
va_end(ap2);
}
char buffer[len + 1];
vsnprintf(buffer, len + 1, fmt, ap);
out = AString(buffer, buffer + len);
return len;
}
} // namespace strings
} // namespace tmwa
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