85 lines
2.0 KiB
C++
85 lines
2.0 KiB
C++
#pragma once
|
|
|
|
#include "limonp/StringUtil.hpp"
|
|
#include "segment-trie/segment-trie.h"
|
|
//#include "DictTrie.hpp"
|
|
//#include "SegmentTagged.hpp"
|
|
|
|
namespace cppjieba {
|
|
using namespace limonp;
|
|
|
|
static const char* const POS_M = "m";
|
|
static const char* const POS_ENG = "eng";
|
|
static const char* const POS_X = "x";
|
|
|
|
class PosTagger {
|
|
public:
|
|
PosTagger() {
|
|
}
|
|
~PosTagger() {
|
|
}
|
|
|
|
bool Tag(const string& src, vector<pair<string, string> >& res, const SegmentTagged& segment) const {
|
|
vector<string> CutRes;
|
|
segment.CutToStr(src, CutRes);
|
|
|
|
for (vector<string>::iterator itr = CutRes.begin(); itr != CutRes.end(); ++itr) {
|
|
res.push_back(make_pair(*itr, LookupTag(*itr, segment)));
|
|
}
|
|
|
|
return !res.empty();
|
|
}
|
|
|
|
string LookupTag(const string &str, const SegmentTagged& segment) const {
|
|
const DictTrie * dict = segment.GetDictTrie();
|
|
assert(dict != nullptr);
|
|
const auto tmp = dict->Find(str);
|
|
|
|
if (tmp == nullptr || tmp->GetTag().empty()) {
|
|
RuneStrArray runes;
|
|
|
|
if (!DecodeRunesInString(str, runes)) {
|
|
XLOG(ERROR) << "Decode failed.";
|
|
return POS_X;
|
|
}
|
|
|
|
return SpecialRule(runes);
|
|
} else {
|
|
return tmp->GetTag();
|
|
}
|
|
}
|
|
|
|
private:
|
|
const char* SpecialRule(const RuneStrArray& unicode) const {
|
|
size_t m = 0;
|
|
size_t eng = 0;
|
|
|
|
for (size_t i = 0; i < unicode.size() && eng < unicode.size() / 2; i++) {
|
|
if (unicode[i].rune < 0x80) {
|
|
eng ++;
|
|
|
|
if ('0' <= unicode[i].rune && unicode[i].rune <= '9') {
|
|
m++;
|
|
}
|
|
}
|
|
}
|
|
|
|
// ascii char is not found
|
|
if (eng == 0) {
|
|
return POS_X;
|
|
}
|
|
|
|
// all the ascii is number char
|
|
if (m == eng) {
|
|
return POS_M;
|
|
}
|
|
|
|
// the ascii chars contain english letter
|
|
return POS_ENG;
|
|
}
|
|
|
|
}; // class PosTagger
|
|
|
|
} // namespace cppjieba
|
|
|