From 03f5144a3e22b6ea86a844897591e4620023ebfd Mon Sep 17 00:00:00 2001
From: aholic <ruochen.xu@gmail.com>
Date: Wed, 27 Nov 2013 20:49:00 +0800
Subject: [PATCH] add QuerySegment

---
 src/QuerySegment.hpp | 151 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 151 insertions(+)
 create mode 100644 src/QuerySegment.hpp

diff --git a/src/QuerySegment.hpp b/src/QuerySegment.hpp
new file mode 100644
index 0000000..58cf1a2
--- /dev/null
+++ b/src/QuerySegment.hpp
@@ -0,0 +1,151 @@
+#ifndef CPPJIEBA_QUERYSEGMENT_H
+#define CPPJIEBA_QUERYSEGMENT_H
+
+#include <algorithm>
+#include <set>
+#include "Limonp/logger.hpp"
+#include "Trie.hpp"
+#include "ISegment.hpp"
+#include "SegmentBase.hpp"
+#include "HMMSegment.hpp"
+#include "FullSegment.hpp"
+#include "TransCode.hpp"
+
+namespace CppJieba
+{
+    class QuerySegment: public SegmentBase
+    {
+    private:
+        HMMSegment _hmmSeg;
+        FullSegment _fullSeg;
+        int _maxWordLen;
+
+    public:
+        QuerySegment(const char* fullSegDict, const char* hmmSegDict, int maxWordLen): _hmmSeg(hmmSegDict), _fullSeg(fullSegDict), _maxWordLen(maxWordLen){};
+        virtual ~QuerySegment(){dispose();};
+    public:
+        bool init()
+        {
+#ifndef NO_CODING_LOG
+            if (_getInitFlag())
+            {
+                LogError("inited.");
+            }
+#endif
+            if (!_hmmSeg.init())
+            {
+                LogError("_hmmSeg init");
+                return false;
+            }
+            if (!_fullSeg.init())
+            {
+                LogError("_fullSeg init");
+                return false;
+            }
+            return _setInitFlag(true);
+        }
+        bool dispose()
+        {
+#ifndef NO_CODING_LOG
+            if(!_getInitFlag())
+            {
+                return true;
+            }
+#endif
+            _fullSeg.dispose();
+            _hmmSeg.dispose();
+            _setInitFlag(false);
+            return true;
+        }
+
+    public:
+        using SegmentBase::cut;
+
+    public:
+        bool cut(Unicode::const_iterator begin, Unicode::const_iterator end, vector<Unicode>& res) const
+        {
+#ifndef NO_CODING_LOG
+            if (!_getInitFlag())
+            {
+                LogError("not inited.");
+                return false;
+            }
+            if (begin > end)
+            {
+                LogError("begin > end");
+                return false;
+            }
+#endif
+            //use hmm cut first
+            vector<Unicode> hmmRes;
+            if (!_hmmSeg.cut(begin, end, hmmRes))
+            {
+                LogError("_hmmSeg cut failed.");
+                return false;
+            }
+
+            vector<Unicode> fullRes;
+            for (vector<Unicode>::const_iterator hmmResItr = hmmRes.begin(); hmmResItr != hmmRes.end(); hmmResItr++)
+            {
+                
+                // if it's too long, cut with _fullSeg, put fullRes in res
+                if (hmmResItr->size() > _maxWordLen)
+                {
+                    if (_fullSeg.cut(hmmResItr->begin(), hmmResItr->end(), fullRes))
+                    {
+                       for (vector<Unicode>::const_iterator fullResItr = fullRes.begin(); fullResItr != fullRes.end(); fullResItr++)
+                       {
+                           res.push_back(*fullResItr);
+                       }
+                    }
+                }
+                else // just use the hmm result
+                {
+                    res.push_back(*hmmResItr);
+                }
+            }
+
+            return true;
+        }
+
+
+        bool cut(Unicode::const_iterator begin, Unicode::const_iterator end, vector<string>& res) const
+        {
+#ifndef NO_CODING_LOG
+            if (!_getInitFlag())
+            {
+                LogError("not inited.");
+                return false;
+            }
+            if (begin > end)
+            {
+                LogError("begin > end");
+                return false;
+            }
+#endif
+            vector<Unicode> uRes;
+            if (!cut(begin, end, uRes))
+            {
+                LogError("get unicode cut result error.");
+                return false;
+            }
+
+            string tmp;
+            for (vector<Unicode>::const_iterator uItr = uRes.begin(); uItr != uRes.end(); uItr++)
+            {
+                if (TransCode::encode(*uItr, tmp))
+                {
+                    res.push_back(tmp);
+                }
+                else
+                {
+                    LogError("encode failed.");
+                }
+            }
+
+            return true;
+        }
+    };
+}
+
+#endif