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#pragma once
#ifndef MARISA_GRIMOIRE_TRIE_ENTRY_H_
#define MARISA_GRIMOIRE_TRIE_ENTRY_H_
#include "../../base.h"
namespace marisa {
namespace grimoire {
namespace trie {
class Entry {
public:
Entry()
: ptr_(reinterpret_cast<const char *>(-1)), length_(0), id_(0) {}
Entry(const Entry &entry)
: ptr_(entry.ptr_), length_(entry.length_), id_(entry.id_) {}
Entry &operator=(const Entry &entry) {
ptr_ = entry.ptr_;
length_ = entry.length_;
id_ = entry.id_;
return *this;
}
char operator[](std::size_t i) const {
MARISA_DEBUG_IF(i >= length_, MARISA_BOUND_ERROR);
return *(ptr_ - i);
}
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 - 1;
length_ = (UInt32)length;
}
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_ + 1;
}
std::size_t length() const {
return length_;
}
std::size_t id() const {
return id_;
}
class StringComparer {
public:
bool operator()(const Entry &lhs, const Entry &rhs) const {
for (std::size_t i = 0; i < lhs.length(); ++i) {
if (i == rhs.length()) {
return true;
}
if (lhs[i] != rhs[i]) {
return (UInt8)lhs[i] > (UInt8)rhs[i];
}
}
return lhs.length() > rhs.length();
}
};
class IDComparer {
public:
bool operator()(const Entry &lhs, const Entry &rhs) const {
return lhs.id_ < rhs.id_;
}
};
private:
const char *ptr_;
UInt32 length_;
UInt32 id_;
};
} // namespace trie
} // namespace grimoire
} // namespace marisa
#endif // MARISA_GRIMOIRE_TRIE_ENTRY_H_
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