func check(err error, tagger *m.Tagger) {
if err != nil {
str := tagger.StrError()
fmt.Printf("\nException:%s", str)
tagger.Destroy()
os.Exit(-1)
}
}
func main() {
var (
model *m.Model
tagger *m.Tagger
lattice *m.Lattice
success int
str string
err error
)
input := "太郎は次郎が持っている本を花子に渡した。"
// Create model objcet
model, _ = m.NewModel2("")
// Create Tagger
// All taggers generated by Model::createTagger() method share
// the same model/dictoinary
tagger, _ = model.CreateTagger()
// Create lattice object per thread
lattice, err = model.CreateLattice()
check(err, tagger)
// Gets tagged result in string
lattice.SetSentence(input)
// this method is thread safe, as long as |lattice| is thread local
success = tagger.ParseLattice(lattice)
//check(tagger, tagger)
str = lattice.ToStr()
fmt.Printf("\n%s\n", str)
// Gets node object
node, err := lattice.BosNode()
check(err, tagger)
for ; err == nil; node, err = node.Next() {
id := node.ID()
fmt.Printf("%d", id)
n := node.Stat()
if n == m.MECAB_BOS_NODE {
fmt.Printf("BOS")
} else if n == m.MECAB_EOS_NODE {
fmt.Printf("EOS")
} else {
s := node.Surface()
l := node.Length()
fmt.Printf("%s", s[:l])
}
f := node.Feature()
s := node.Surface()
l := node.Length()
fmt.Printf(" %s %d %d %d %d %d %d %d %d %f %f %f %d\n",
f,
(int)(len(input)-len(s)),
(int)(len(input)-len(s)+(int)(l)),
node.RcAttr(),
node.LcAttr(),
node.Posid(),
node.CharType(),
node.Stat(),
node.Isbest(),
node.Alpha(),
node.Beta(),
node.Prob(),
node.Cost())
}
//begin_nodes/end_nodes
l := lattice.GetSize()
for i := 0; i <= int(l); i = i + 1 {
b, err := lattice.GetBeginNodes(uint64(i))
e, err := lattice.GetEndNodes(uint64(i))
for ; err == nil; b, err = b.Bnext() {
s := b.Surface()
f := b.Feature()
fmt.Printf("B[%d] %s\t%s\n", i, s, f)
}
for ; err == nil; e, err = e.Enext() {
s := e.Surface()
f := e.Feature()
fmt.Printf("E[%d] %s\t%s\n", i, s, f)
}
}
//N best results
lattice.SetRequestType(m.MECAB_NBEST)
lattice.SetSentence(input)
success = tagger.ParseLattice(lattice)
for i := 0; i < 10; i = i + 1 {
fmt.Printf("NBEST:%d\n", i)
str = lattice.ToStr()
fmt.Printf("%s", str)
success = lattice.Next()
if success == 0 {
// No more results
break
}
}
// Marginal probabilities
lattice.SetSentence(input)
lattice.SetRequestType(m.MECAB_MARGINAL_PROB)
lattice.SetTheta(0.001)
tagger.ParseLattice(lattice)
node, err = lattice.BosNode()
check(err, tagger)
for ; err != nil; node, err = node.Next() {
fmt.Printf(node.Surface()[:node.Length()])
fmt.Printf("\t%s\n", node.Feature())
}
// lattice.RemoveRequestType(MECAB_NBEST)
tagger.SetLatticeLevel(0)
tagger.SetAllMorphs(1)
node, err = tagger.SparseTonode(input)
check(err, tagger)
for ; err != nil; node, err = node.Next() {
fmt.Printf(node.Surface()[:node.Length()])
fmt.Printf("\t%s\n", node.Feature())
}
// Dictionary info
d, err := tagger.DictionaryInfo()
for ; err != nil; d, err = d.Next() {
fmt.Printf("filename: %s\n", d.Filename())
fmt.Printf("charset: %s\n", d.Charset())
fmt.Printf("size: %d\n", d.Size())
fmt.Printf("type: %d\n", d.Type())
fmt.Printf("lsize: %d\n", d.Lsize())
fmt.Printf("rsize: %d\n", d.Rsize())
fmt.Printf("version: %d\n", d.Version())
}
tagger.Destroy()
lattice.Destroy()
model.Destroy()
}