feat(addwordex): 加词支持指定权重和词性，解决原来 AddWord() 接口加词权重太低没有生效的问题

README.md

@@ -58,6 +58,9 @@ func main() {
 	fmt.Println("精确模式:", strings.Join(words, "/"))
 
 	x.AddWord("比特币")
+	// `AddWordEx` 支持指定词语的权重，作为 `AddWord` 权重太低加词失败的补充。
+	// `tag` 参数可以为空字符串，也可以指定词性。
+	// x.AddWordEx("比特币", 100000, "")
 	s = "比特币"
 	words = x.Cut(s, use_hmm)
 	fmt.Println(s)

README_EN.md

@@ -53,6 +53,7 @@ func main() {
 	fmt.Println("精确模式:", strings.Join(words, "/"))
 
 	x.AddWord("比特币")
+	// x.AddWordEx("比特币", 100000, "")
 	s = "比特币"
 	words = x.Cut(s, use_hmm)
 	fmt.Println(s)

jieba.cpp

@@ -84,6 +84,10 @@ void AddWord(Jieba x, const char* word) {
   ((cppjieba::Jieba*)x)->InsertUserWord(word);
 }
 
+void AddWordEx(Jieba x, const char* word, int freq, const char* tag) {
+  ((cppjieba::Jieba*)x)->InsertUserWord(word, freq, tag);
+}
+
 void RemoveWord(Jieba x, const char* word) {
   ((cppjieba::Jieba*)x)->DeleteUserWord(word);
 }

jieba.go

@@ -103,6 +103,14 @@ func (x *Jieba) AddWord(s string) {
 	C.AddWord(x.jieba, cstr)
 }
 
+func (x *Jieba) AddWordEx(s string, freq int, tag string) {
+	cstr := C.CString(s)
+	ctag := C.CString(tag)
+	defer C.free(unsafe.Pointer(ctag))
+	defer C.free(unsafe.Pointer(cstr))
+	C.AddWordEx(x.jieba, cstr, C.int(freq), ctag)
+}
+
 func (x *Jieba) RemoveWord(s string) {
 	cstr := C.CString(s)
 	defer C.free(unsafe.Pointer(cstr))

jieba.h

@@ -28,6 +28,7 @@ char** CutAll(Jieba handle, const char* sentence);
 char** CutForSearch(Jieba handle, const char* sentence, int is_hmm_used);
 char** Tag(Jieba handle, const char* sentence);
 void AddWord(Jieba handle, const char* word);
+void AddWordEx(Jieba handle, const char* word, int freq, const char* tag);
 void RemoveWord(Jieba handle, const char* word);
 
 Word* Tokenize(Jieba x, const char* sentence, TokenizeMode mode, int is_hmm_used);