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#pragma once
#ifndef MARISA_KEYSET_H_
#define MARISA_KEYSET_H_
#include "key.h"
namespace marisa {
class Keyset {
public:
enum {
BASE_BLOCK_SIZE = 4096,
EXTRA_BLOCK_SIZE = 1024,
KEY_BLOCK_SIZE = 256
};
Keyset();
void push_back(const Key &key);
void push_back(const Key &key, char end_marker);
void push_back(const char *str);
void push_back(const char *ptr, std::size_t length, float weight = 1.0);
const Key &operator[](std::size_t i) const {
MARISA_DEBUG_IF(i >= size_, MARISA_BOUND_ERROR);
return key_blocks_[i / KEY_BLOCK_SIZE][i % KEY_BLOCK_SIZE];
}
Key &operator[](std::size_t i) {
MARISA_DEBUG_IF(i >= size_, MARISA_BOUND_ERROR);
return key_blocks_[i / KEY_BLOCK_SIZE][i % KEY_BLOCK_SIZE];
}
std::size_t num_keys() const {
return size_;
}
bool empty() const {
return size_ == 0;
}
std::size_t size() const {
return size_;
}
std::size_t total_length() const {
return total_length_;
}
void reset();
void clear();
void swap(Keyset &rhs);
private:
scoped_array<scoped_array<char> > base_blocks_;
std::size_t base_blocks_size_;
std::size_t base_blocks_capacity_;
scoped_array<scoped_array<char> > extra_blocks_;
std::size_t extra_blocks_size_;
std::size_t extra_blocks_capacity_;
scoped_array<scoped_array<Key> > key_blocks_;
std::size_t key_blocks_size_;
std::size_t key_blocks_capacity_;
char *ptr_;
std::size_t avail_;
std::size_t size_;
std::size_t total_length_;
char *reserve(std::size_t size);
void append_base_block();
void append_extra_block(std::size_t size);
void append_key_block();
// Disallows copy and assignment.
Keyset(const Keyset &);
Keyset &operator=(const Keyset &);
};
} // namespace marisa
#endif // MARISA_KEYSET_H_
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