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/****************************************************************************
* Copyright (C) from 2009 to Present EPAM Systems.
*
* This file is part of Indigo toolkit.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
***************************************************************************/
#ifndef __string_pool_h__
#define __string_pool_h__
#include "base_cpp/auto_iter.h"
#include "base_cpp/pool.h"
#include "base_cpp/ptr_array.h"
#ifdef _WIN32
#pragma warning(push)
#pragma warning(disable : 4251)
#endif
namespace indigo
{
class DLLEXPORT StringPool
{
public:
DECL_ERROR;
StringPool();
~StringPool();
int add(const char* str);
int add(Array<char>& str);
int add(int size);
void remove(int idx);
int size() const;
int begin() const;
int end() const;
int next(int i) const;
void clear();
char* at(int idx);
const char* at(int idx) const;
/*
* Iterators
*/
class PoolIter : public AutoIterator
{
public:
PoolIter(StringPool& owner, int idx) : AutoIterator(idx), _owner(owner)
{
}
PoolIter& operator++()
{
_idx = _owner.next(_idx);
return *this;
}
private:
StringPool& _owner;
};
class PoolAuto
{
public:
PoolAuto(StringPool& owner) : _owner(owner)
{
}
PoolIter begin()
{
return StringPool::PoolIter(_owner, _owner.begin());
}
PoolIter end()
{
return StringPool::PoolIter(_owner, _owner.end());
}
private:
StringPool& _owner;
};
PoolAuto elements()
{
return PoolAuto(*this);
}
protected:
int _add(const char* str, int size);
Pool<int> _pool;
PtrArray<Array<char>> _storage;
private:
StringPool(const StringPool&); // no implicit copy
};
} // namespace indigo
#ifdef _WIN32
#pragma warning(pop)
#endif
#endif
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