計算選字事件時，若遇到常用標點，將標點視為句尾

如此一來標點後的單字詞，在計算時，等同於句首第一詞。

Source/UserOverrideModel.cpp

@@ -41,6 +41,7 @@ static double Score(size_t eventCount,
                     double eventTimestamp,
                     double timestamp,
                     double lambda);
+static bool IsEndingPunctuation(const string& value);
 static string WalkedNodesToKey(const std::vector<NodeAnchor>& walkedNodes,
                                size_t cursorIndex);
 
@@ -141,6 +142,10 @@ static double Score(size_t eventCount,
     return prob * decay;
 }
 
+static bool IsEndingPunctuation(const string& value) {
+    return value == "，" || value == "。" || value== "！" || value == "？" ||
+        value == "」" || value == "』" || value== "”" || value == "”";
+}
 static string WalkedNodesToKey(const std::vector<NodeAnchor>& walkedNodes,
                                size_t cursorIndex) {
     std::stringstream s;
@@ -169,12 +174,18 @@ static string WalkedNodesToKey(const std::vector<NodeAnchor>& walkedNodes,
     s.clear();
     s.str(std::string());
     if (r != n.rend()) {
+        string value = (*r).node->currentKeyValue().value;
+        if (IsEndingPunctuation(value)) {
+            s << "()";
+            r = n.rend();
+        } else {
             s << "("
                     << (*r).node->currentKeyValue().key
                     << ","
-                << (*r).node->currentKeyValue().value
+                    << value
                     << ")";
             ++r;
+        }
     } else {
         s << "()";
     }
@@ -183,12 +194,18 @@ static string WalkedNodesToKey(const std::vector<NodeAnchor>& walkedNodes,
     s.clear();
     s.str(std::string());
     if (r != n.rend()) {
+        string value = (*r).node->currentKeyValue().value;
+        if (IsEndingPunctuation(value)) {
+            s << "()";
+            r = n.rend();
+        } else {
             s << "("
             << (*r).node->currentKeyValue().key
             << ","
-                << (*r).node->currentKeyValue().value
+            << value
             << ")";
             ++r;
+        }
     } else {
         s << "()";
     }