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#include "rstring.hpp"
// strings/rstring.cpp - Functions for rstring.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 "mstring.hpp"
#include "tstring.hpp"
#include "sstring.hpp"
#include "zstring.hpp"
#include "xstring.hpp"
#include "vstring.hpp"
namespace strings
{
static_assert(sizeof(RString) == sizeof(const char *), "RString");
uint8_t RString::empty_string_rep[sizeof(Rep) + 1];
RString::RString()
: owned(reinterpret_cast<Rep *>(&empty_string_rep))
{
owned->count++;
}
RString::RString(const RString& r)
: owned(r.owned)
{
owned->count++;
}
RString::RString(RString&& r)
: owned(reinterpret_cast<Rep *>(&empty_string_rep))
{
std::swap(owned, r.owned);
r.owned->count++;
}
RString& RString::operator = (const RString& r)
{
// order important for self-assign
r.owned->count++;
// owned can be NULL from ctors
// TODO do ctors *properly* (requires gcc 4.7 to stay sane)
if (owned && !owned->count--)
::operator delete(owned);
owned = r.owned;
return *this;
}
RString& RString::operator = (RString&& r)
{
std::swap(owned, r.owned);
return *this;
}
RString::RString(AString a)
: owned(nullptr)
{
if (RString *r = const_cast<RString *>(a.base()))
{
*this = std::move(*r);
}
else
{
*this = XPair(a);
}
}
RString::~RString()
{
if (owned && !owned->count--)
::operator delete(owned);
owned = nullptr;
}
RString::RString(const MString& s)
: owned(nullptr)
{
_assign(s.begin(), s.end());
}
RString::RString(XPair p)
: owned(nullptr)
{
_assign(p.begin(), p.end());
}
RString::RString(const TString& t)
: owned(nullptr)
{
*this = XString(t);
}
RString::RString(const SString& s)
: owned(nullptr)
{
*this = XString(s);
}
RString::RString(ZString z)
: owned(nullptr)
{
*this = XString(z);
}
RString::RString(XString x)
: owned(nullptr)
{
const RString *f = x.base();
const char *xb = &*x.begin();
const char *xe = &*x.end();
const char *fb = f ? &*f->begin() : nullptr;
const char *fe = f ? &*f->end() : nullptr;
if (f && xb == fb && xe == fe)
*this = *f;
else
_assign(x.begin(), x.end());
}
RString::iterator RString::begin() const
{
return owned->body;
}
RString::iterator RString::end() const
{
return owned->body + owned->size;
}
const RString *RString::base() const
{
return this;
}
const char *RString::c_str() const
{
return &*begin();
}
const char *decay_for_printf(const RString& fs)
{
return fs.c_str();
}
int do_vprint(RString& out, const char *fmt, va_list ap)
{
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 = RString(buffer, buffer + len);
return len;
}
} // namespace strings
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