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moving japanese analyzer to blevex package

This commit is contained in:
Marty Schoch 2016-03-13 18:05:05 -04:00
parent 0de657d3ca
commit cecdfcbc69
5 changed files with 1 additions and 270 deletions
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37
analysis/language/ja/analyzer_ja.go
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@ -1,37 +0,0 @@
// Copyright (c) 2014 Couchbase, Inc.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
package ja
import (
"github.com/blevesearch/bleve/analysis"
"github.com/blevesearch/bleve/analysis/token_filters/unicode_normalize"
"github.com/blevesearch/bleve/registry"
)
const AnalyzerName = "ja"
func AnalyzerConstructor(config map[string]interface{}, cache *registry.Cache) (*analysis.Analyzer, error) {
kagomeTokenizer, err := cache.TokenizerNamed(TokenizerName)
if err != nil {
return nil, err
}
normalizeFilter := unicode_normalize.MustNewUnicodeNormalizeFilter(unicode_normalize.NFKD)
rv := analysis.Analyzer{
Tokenizer: kagomeTokenizer,
TokenFilters: []analysis.TokenFilter{
normalizeFilter,
},
}
return &rv, nil
}
func init() {
registry.RegisterAnalyzer(AnalyzerName, AnalyzerConstructor)
}

69
analysis/language/ja/analyzer_ja_test.go
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@ -1,69 +0,0 @@
// Copyright (c) 2014 Couchbase, Inc.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
package ja
import (
"reflect"
"testing"
"github.com/blevesearch/bleve/analysis"
"github.com/blevesearch/bleve/registry"
)
func TestJaAnalyzer(t *testing.T) {
tests := []struct {
input []byte
output analysis.TokenStream
}{
{
input: []byte("こんにちは世界"),
output: analysis.TokenStream{
&analysis.Token{
Term: []byte("こんにちは"),
Type: analysis.Ideographic,
Position: 1,
Start: 0,
End: 15,
},
&analysis.Token{
Term: []byte("世界"),
Type: analysis.Ideographic,
Position: 2,
Start: 15,
End: 21,
},
},
},
{
input: []byte("ｶﾀｶﾅ"),
output: analysis.TokenStream{
&analysis.Token{
Term: []byte("カタカナ"),
Type: analysis.Ideographic,
Position: 1,
Start: 0,
End: 12,
},
},
},
}
cache := registry.NewCache()
for _, test := range tests {
analyzer, err := cache.AnalyzerNamed(AnalyzerName)
if err != nil {
t.Fatal(err)
}
actual := analyzer.Analyze(test.input)
if !reflect.DeepEqual(actual, test.output) {
t.Errorf("expected %v, got %v", test.output, actual)
}
}
}

83
analysis/language/ja/ja_morph_kagome.go
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@ -1,83 +0,0 @@
// Copyright (c) 2014 Couchbase, Inc.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
package ja
import (
"github.com/blevesearch/bleve/analysis"
"github.com/blevesearch/bleve/registry"
"github.com/ikawaha/kagome.ipadic/tokenizer"
)
const TokenizerName = "kagome"
type KagomeMorphTokenizer struct {
tok tokenizer.Tokenizer
}
func init() {
_ = tokenizer.SysDic() // prepare system dictionary
}
func NewKagomeMorphTokenizer() *KagomeMorphTokenizer {
return &KagomeMorphTokenizer{
tok: tokenizer.New(),
}
}
func NewKagomeMorphTokenizerWithUserDic(userdic tokenizer.UserDic) *KagomeMorphTokenizer {
k := tokenizer.New()
k.SetUserDic(userdic)
return &KagomeMorphTokenizer{
tok: k,
}
}
func (t *KagomeMorphTokenizer) Tokenize(input []byte) analysis.TokenStream {
var (
morphs []tokenizer.Token
prevstart int
)
rv := make(analysis.TokenStream, 0, len(input))
if len(input) < 1 {
return rv
}
morphs = t.tok.Analyze(string(input), tokenizer.Search)
for i, m := range morphs {
if m.Surface == "EOS" || m.Surface == "BOS" {
continue
}
surfacelen := len(m.Surface)
token := &analysis.Token{
Term: []byte(m.Surface),
Position: i,
Start: prevstart,
End: prevstart + surfacelen,
Type: analysis.Ideographic,
}
prevstart = prevstart + surfacelen
rv = append(rv, token)
}
return rv
}
func KagomeMorphTokenizerConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.Tokenizer, error) {
return NewKagomeMorphTokenizer(), nil
}
func init() {
registry.RegisterTokenizer(TokenizerName, KagomeMorphTokenizerConstructor)
}

80
analysis/language/ja/ja_morph_kagome_test.go
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@ -1,80 +0,0 @@
// Copyright (c) 2014 Couchbase, Inc.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
package ja
import (
"reflect"
"testing"
"github.com/blevesearch/bleve/analysis"
)
func TestKagome(t *testing.T) {
tests := []struct {
input []byte
output analysis.TokenStream
}{
{
[]byte("こんにちは世界"),
analysis.TokenStream{
{
Start: 0,
End: 15,
Term: []byte("こんにちは"),
Position: 1,
Type: analysis.Ideographic,
},
{
Start: 15,
End: 21,
Term: []byte("世界"),
Position: 2,
Type: analysis.Ideographic,
},
},
},
{
[]byte("関西国際空港"),
analysis.TokenStream{
{
Start: 0,
End: 6,
Term: []byte("関西"),
Position: 1,
Type: analysis.Ideographic,
},
{
Start: 6,
End: 12,
Term: []byte("国際"),
Position: 2,
Type: analysis.Ideographic,
},
{
Start: 12,
End: 18,
Term: []byte("空港"),
Position: 3,
Type: analysis.Ideographic,
},
},
},
}
tokenizer := NewKagomeMorphTokenizer()
for _, test := range tests {
actuals := tokenizer.Tokenize(test.input)
if !reflect.DeepEqual(actuals, test.output) {
t.Errorf("Expected %v, got %v for %s", test.output, actuals, string(test.input))
}
}
}

2
config/config_kagome.go
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@ -12,5 +12,5 @@
package config
import (
_ "github.com/blevesearch/bleve/analysis/language/ja"
_ "github.com/blevesearch/blevex/lang/ja"
)