uniform the api

analyse/textrank.go

@@ -161,7 +161,7 @@ func (t *TextRanker) TextRank(sentence string, topK int) wordWeights {
 // name in current directory. This function must be called before cut any
 // sentence.
 func NewTextRanker(dictFileName string) (*TextRanker, error) {
-	p, err := posseg.NewPosseg(dictFileName)
+	p, err := posseg.Open(dictFileName)
 	if err != nil {
 		return nil, err
 	}

jieba.go

@@ -2,17 +2,19 @@
 package jiebago
 
 import (
+	"errors"
 	"github.com/wangbin/jiebago/finalseg"
 	"regexp"
 	"sort"
 )
 
 var (
-	reEng         = regexp.MustCompile(`[[:alnum:]]`)
-	reHanCutAll   = regexp.MustCompile(`\p{Han}+`)
-	reSkipCutAll  = regexp.MustCompile(`[^[:alnum:]+#\n]`)
-	reHanDefault  = regexp.MustCompile(`([\p{Han}+[:alnum:]+#&\._]+)`)
-	reSkipDefault = regexp.MustCompile(`(\r\n|\s)`)
+	ErrInitialized = errors.New("already initialized")
+	reEng          = regexp.MustCompile(`[[:alnum:]]`)
+	reHanCutAll    = regexp.MustCompile(`\p{Han}+`)
+	reSkipCutAll   = regexp.MustCompile(`[^[:alnum:]+#\n]`)
+	reHanDefault   = regexp.MustCompile(`([\p{Han}+[:alnum:]+#&\._]+)`)
+	reSkipDefault  = regexp.MustCompile(`(\r\n|\s)`)
 )
 
 type Segmenter interface {
@@ -51,8 +53,15 @@ func (j *Jieba) Add(word string, freq float64) {
 }
 
 // Load user specified dictionary file.
-func (j *Jieba) LoadUserDict(dictFilePath string) error {
-	return LoadDict(j, dictFilePath, false)
+func (j *Jieba) LoadUserDict(dictFileName string) error {
+	return LoadDict(j, dictFileName, false)
+}
+
+func (j *Jieba) SetDict(dictFileName string) error {
+	if len(j.freqMap) > 0 || j.total > 0.0 {
+		return ErrInitialized
+	}
+	return LoadDict(j, dictFileName, false)
 }
 
 func New() *Jieba {

posseg/posseg.go

@@ -22,30 +22,43 @@ type Pair struct {
 
 type Posseg struct {
 	*jiebago.Jieba
-	Flag map[string]string
+	flagMap map[string]string
 }
 
 func (p *Posseg) AddEntry(entry jiebago.Entry) {
 	if len(entry.Flag) > 0 {
-		p.Flag[entry.Word] = strings.TrimSpace(entry.Flag)
+		p.flagMap[entry.Word] = strings.TrimSpace(entry.Flag)
 	}
 	p.Add(entry.Word, entry.Freq)
 }
 
+func (p Posseg) Flag(word string) (string, bool) {
+	flag, ok := p.flagMap[word]
+	return flag, ok
+}
+
 // Set dictionary, it could be absolute path of dictionary file, or dictionary
 // name in current diectory.
-func NewPosseg(dictFileName string) (*Posseg, error) {
-	p := &Posseg{jiebago.New(), make(map[string]string)}
+func Open(dictFileName string) (*Posseg, error) {
+	p := New()
 	err := jiebago.LoadDict(p, dictFileName, true)
-	if err != nil {
-		return nil, err
-	}
-	return p, nil
+	return p, err
 }
 
 // Load user specified dictionary file.
-func (p *Posseg) LoadUserDict(dictFilePath string) error {
-	return jiebago.LoadDict(p, dictFilePath, true)
+func (p *Posseg) LoadUserDict(dictFileName string) error {
+	return jiebago.LoadDict(p, dictFileName, true)
+}
+
+func (p *Posseg) SetDict(dictFileName string) error {
+	if len(p.flagMap) > 0 || p.Total() > 0.0 {
+		return jiebago.ErrInitialized
+	}
+	return jiebago.LoadDict(p, dictFileName, false)
+}
+
+func New() *Posseg {
+	return &Posseg{jiebago.New(), make(map[string]string)}
 }
 
 func (p *Posseg) cutDetailInternal(sentence string) chan Pair {
@@ -128,7 +141,7 @@ func (p *Posseg) cutDAG(sentence string) chan Pair {
 				if len(buf) > 0 {
 					if len(buf) == 1 {
 						sbuf := string(buf)
-						if tag, ok := p.Flag[sbuf]; ok {
+						if tag, ok := p.Flag(sbuf); ok {
 							result <- Pair{sbuf, tag}
 						} else {
 							result <- Pair{sbuf, "x"}
@@ -143,7 +156,7 @@ func (p *Posseg) cutDAG(sentence string) chan Pair {
 						} else {
 							for _, elem := range buf {
 								selem := string(elem)
-								if tag, ok := p.Flag[selem]; ok {
+								if tag, ok := p.Flag(selem); ok {
 									result <- Pair{string(elem), tag}
 								} else {
 									result <- Pair{string(elem), "x"}
@@ -155,7 +168,7 @@ func (p *Posseg) cutDAG(sentence string) chan Pair {
 					}
 				}
 				sl_word := string(l_word)
-				if tag, ok := p.Flag[sl_word]; ok {
+				if tag, ok := p.Flag(sl_word); ok {
 					result <- Pair{sl_word, tag}
 				} else {
 					result <- Pair{sl_word, "x"}
@@ -167,7 +180,7 @@ func (p *Posseg) cutDAG(sentence string) chan Pair {
 		if len(buf) > 0 {
 			if len(buf) == 1 {
 				sbuf := string(buf)
-				if tag, ok := p.Flag[sbuf]; ok {
+				if tag, ok := p.Flag(sbuf); ok {
 					result <- Pair{sbuf, tag}
 				} else {
 					result <- Pair{sbuf, "x"}
@@ -181,7 +194,7 @@ func (p *Posseg) cutDAG(sentence string) chan Pair {
 				} else {
 					for _, elem := range buf {
 						selem := string(elem)
-						if tag, ok := p.Flag[selem]; ok {
+						if tag, ok := p.Flag(selem); ok {
 							result <- Pair{selem, tag}
 						} else {
 							result <- Pair{selem, "x"}
@@ -221,7 +234,7 @@ func (p *Posseg) cutDAGNoHMM(sentence string) chan Pair {
 					buf = make([]rune, 0)
 				}
 				sl_word := string(l_word)
-				if tag, ok := p.Flag[sl_word]; ok {
+				if tag, ok := p.Flag(sl_word); ok {
 					result <- Pair{sl_word, tag}
 				} else {
 					result <- Pair{sl_word, "x"}

posseg/posseg_test.go

@@ -276,7 +276,7 @@ func chanToArray(ch chan Pair) []Pair {
 }
 
 func TestCut(t *testing.T) {
-	p, err := NewPosseg("../dict.txt")
+	p, err := Open("../dict.txt")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -307,7 +307,7 @@ func TestBug132(t *testing.T) {
 	/*
 		https://github.com/fxsjy/jieba/issues/132
 	*/
-	p, _ := NewPosseg("../dict.txt")
+	p, _ := Open("../dict.txt")
 	sentence := "又跛又啞"
 	cutResult := []Pair{
 		Pair{"又", "d"},
@@ -330,7 +330,7 @@ func TestBug137(t *testing.T) {
 	/*
 		https://github.com/fxsjy/jieba/issues/137
 	*/
-	p, _ := NewPosseg("../dict.txt")
+	p, _ := Open("../dict.txt")
 	sentence := "前港督衛奕信在八八年十月宣布成立中央政策研究組"
 	cutResult := []Pair{
 		Pair{"前", "f"},
@@ -359,7 +359,7 @@ func TestBug137(t *testing.T) {
 }
 
 func TestUserDict(t *testing.T) {
-	p, _ := NewPosseg("../dict.txt")
+	p, _ := Open("../dict.txt")
 	p.LoadUserDict("../userdict.txt")
 	sentence := "李小福是创新办主任也是云计算方面的专家; 什么是八一双鹿例如我输入一个带“韩玉赏鉴”的标题，在自定义词库中也增加了此词为N类型"