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#ifndef MARISA_GRIMOIRE_TRIE_KEY_H_
#define MARISA_GRIMOIRE_TRIE_KEY_H_
#include "marisa/base.h"
namespace marisa {
namespace grimoire {
namespace trie {
class Key {
public:
Key() : ptr_(NULL), length_(0), union_(), id_(0) {
union_.terminal = 0;
}
Key(const Key &entry)
: ptr_(entry.ptr_), length_(entry.length_),
union_(entry.union_), id_(entry.id_) {}
Key &operator=(const Key &entry) {
ptr_ = entry.ptr_;
length_ = entry.length_;
union_ = entry.union_;
id_ = entry.id_;
return *this;
}
char operator[](std::size_t i) const {
MARISA_DEBUG_IF(i >= length_, MARISA_BOUND_ERROR);
return ptr_[i];
}
void substr(std::size_t pos, std::size_t length) {
MARISA_DEBUG_IF(pos > length_, MARISA_BOUND_ERROR);
MARISA_DEBUG_IF(length > length_, MARISA_BOUND_ERROR);
MARISA_DEBUG_IF(pos > (length_ - length), MARISA_BOUND_ERROR);
ptr_ += pos;
length_ = (UInt32)length;
}
void set_str(const char *ptr, std::size_t length) {
MARISA_DEBUG_IF((ptr == NULL) && (length != 0), MARISA_NULL_ERROR);
MARISA_DEBUG_IF(length > MARISA_UINT32_MAX, MARISA_SIZE_ERROR);
ptr_ = ptr;
length_ = (UInt32)length;
}
void set_weight(float weight) {
union_.weight = weight;
}
void set_terminal(std::size_t terminal) {
MARISA_DEBUG_IF(terminal > MARISA_UINT32_MAX, MARISA_SIZE_ERROR);
union_.terminal = (UInt32)terminal;
}
void set_id(std::size_t id) {
MARISA_DEBUG_IF(id > MARISA_UINT32_MAX, MARISA_SIZE_ERROR);
id_ = (UInt32)id;
}
const char *ptr() const {
return ptr_;
}
std::size_t length() const {
return length_;
}
float weight() const {
return union_.weight;
}
std::size_t terminal() const {
return union_.terminal;
}
std::size_t id() const {
return id_;
}
private:
const char *ptr_;
UInt32 length_;
union Union {
float weight;
UInt32 terminal;
} union_;
UInt32 id_;
};
inline bool operator==(const Key &lhs, const Key &rhs) {
if (lhs.length() != rhs.length()) {
return false;
}
for (std::size_t i = 0; i < lhs.length(); ++i) {
if (lhs[i] != rhs[i]) {
return false;
}
}
return true;
}
inline bool operator!=(const Key &lhs, const Key &rhs) {
return !(lhs == rhs);
}
inline bool operator<(const Key &lhs, const Key &rhs) {
for (std::size_t i = 0; i < lhs.length(); ++i) {
if (i == rhs.length()) {
return false;
}
if (lhs[i] != rhs[i]) {
return (UInt8)lhs[i] < (UInt8)rhs[i];
}
}
return lhs.length() < rhs.length();
}
inline bool operator>(const Key &lhs, const Key &rhs) {
return rhs < lhs;
}
class ReverseKey {
public:
ReverseKey() : ptr_(NULL), length_(0), union_(), id_(0) {
union_.terminal = 0;
}
ReverseKey(const ReverseKey &entry)
: ptr_(entry.ptr_), length_(entry.length_),
union_(entry.union_), id_(entry.id_) {}
ReverseKey &operator=(const ReverseKey &entry) {
ptr_ = entry.ptr_;
length_ = entry.length_;
union_ = entry.union_;
id_ = entry.id_;
return *this;
}
char operator[](std::size_t i) const {
MARISA_DEBUG_IF(i >= length_, MARISA_BOUND_ERROR);
return *(ptr_ - i - 1);
}
void substr(std::size_t pos, std::size_t length) {
MARISA_DEBUG_IF(pos > length_, MARISA_BOUND_ERROR);
MARISA_DEBUG_IF(length > length_, MARISA_BOUND_ERROR);
MARISA_DEBUG_IF(pos > (length_ - length), MARISA_BOUND_ERROR);
ptr_ -= pos;
length_ = (UInt32)length;
}
void set_str(const char *ptr, std::size_t length) {
MARISA_DEBUG_IF((ptr == NULL) && (length != 0), MARISA_NULL_ERROR);
MARISA_DEBUG_IF(length > MARISA_UINT32_MAX, MARISA_SIZE_ERROR);
ptr_ = ptr + length;
length_ = (UInt32)length;
}
void set_weight(float weight) {
union_.weight = weight;
}
void set_terminal(std::size_t terminal) {
MARISA_DEBUG_IF(terminal > MARISA_UINT32_MAX, MARISA_SIZE_ERROR);
union_.terminal = (UInt32)terminal;
}
void set_id(std::size_t id) {
MARISA_DEBUG_IF(id > MARISA_UINT32_MAX, MARISA_SIZE_ERROR);
id_ = (UInt32)id;
}
const char *ptr() const {
return ptr_ - length_;
}
std::size_t length() const {
return length_;
}
float weight() const {
return union_.weight;
}
std::size_t terminal() const {
return union_.terminal;
}
std::size_t id() const {
return id_;
}
private:
const char *ptr_;
UInt32 length_;
union Union {
float weight;
UInt32 terminal;
} union_;
UInt32 id_;
};
inline bool operator==(const ReverseKey &lhs, const ReverseKey &rhs) {
if (lhs.length() != rhs.length()) {
return false;
}
for (std::size_t i = 0; i < lhs.length(); ++i) {
if (lhs[i] != rhs[i]) {
return false;
}
}
return true;
}
inline bool operator!=(const ReverseKey &lhs, const ReverseKey &rhs) {
return !(lhs == rhs);
}
inline bool operator<(const ReverseKey &lhs, const ReverseKey &rhs) {
for (std::size_t i = 0; i < lhs.length(); ++i) {
if (i == rhs.length()) {
return false;
}
if (lhs[i] != rhs[i]) {
return (UInt8)lhs[i] < (UInt8)rhs[i];
}
}
return lhs.length() < rhs.length();
}
inline bool operator>(const ReverseKey &lhs, const ReverseKey &rhs) {
return rhs < lhs;
}
} // namespace trie
} // namespace grimoire
} // namespace marisa
#endif // MARISA_GRIMOIRE_TRIE_KEY_H_