35da361bfa
this commit only addresses the analysis sub-package
471 lines
9.9 KiB
Go
471 lines
9.9 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package cjk
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import (
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"reflect"
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"testing"
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"github.com/blevesearch/bleve/analysis"
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)
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func TestCJKBigramFilter(t *testing.T) {
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tests := []struct {
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outputUnigram bool
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input analysis.TokenStream
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output analysis.TokenStream
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}{
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// first test that non-adjacent terms are not combined
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{
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outputUnigram: false,
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("こ"),
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Type: analysis.Ideographic,
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Position: 1,
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Start: 0,
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End: 3,
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},
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&analysis.Token{
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Term: []byte("ん"),
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Type: analysis.Ideographic,
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Position: 2,
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Start: 5,
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End: 8,
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("こ"),
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Type: analysis.Single,
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Position: 1,
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Start: 0,
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End: 3,
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},
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&analysis.Token{
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Term: []byte("ん"),
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Type: analysis.Single,
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Position: 2,
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Start: 5,
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End: 8,
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},
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},
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},
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{
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outputUnigram: false,
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("こ"),
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Type: analysis.Ideographic,
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Position: 1,
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Start: 0,
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End: 3,
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},
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&analysis.Token{
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Term: []byte("ん"),
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Type: analysis.Ideographic,
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Position: 2,
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Start: 3,
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End: 6,
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},
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&analysis.Token{
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Term: []byte("に"),
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Type: analysis.Ideographic,
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Position: 3,
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Start: 6,
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End: 9,
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},
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&analysis.Token{
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Term: []byte("ち"),
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Type: analysis.Ideographic,
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Position: 4,
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Start: 9,
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End: 12,
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},
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&analysis.Token{
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Term: []byte("は"),
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Type: analysis.Ideographic,
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Position: 5,
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Start: 12,
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End: 15,
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},
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&analysis.Token{
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Term: []byte("世"),
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Type: analysis.Ideographic,
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Position: 6,
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Start: 15,
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End: 18,
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},
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&analysis.Token{
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Term: []byte("界"),
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Type: analysis.Ideographic,
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Position: 7,
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Start: 18,
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End: 21,
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("こん"),
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Type: analysis.Double,
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Position: 1,
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Start: 0,
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End: 6,
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},
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&analysis.Token{
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Term: []byte("んに"),
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Type: analysis.Double,
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Position: 2,
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Start: 3,
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End: 9,
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},
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&analysis.Token{
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Term: []byte("にち"),
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Type: analysis.Double,
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Position: 3,
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Start: 6,
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End: 12,
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},
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&analysis.Token{
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Term: []byte("ちは"),
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Type: analysis.Double,
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Position: 4,
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Start: 9,
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End: 15,
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},
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&analysis.Token{
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Term: []byte("は世"),
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Type: analysis.Double,
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Position: 5,
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Start: 12,
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End: 18,
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},
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&analysis.Token{
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Term: []byte("世界"),
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Type: analysis.Double,
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Position: 6,
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Start: 15,
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End: 21,
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},
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},
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},
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{
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outputUnigram: true,
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("こ"),
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Type: analysis.Ideographic,
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Position: 1,
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Start: 0,
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End: 3,
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},
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&analysis.Token{
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Term: []byte("ん"),
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Type: analysis.Ideographic,
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Position: 2,
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Start: 3,
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End: 6,
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},
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&analysis.Token{
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Term: []byte("に"),
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Type: analysis.Ideographic,
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Position: 3,
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Start: 6,
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End: 9,
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},
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&analysis.Token{
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Term: []byte("ち"),
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Type: analysis.Ideographic,
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Position: 4,
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Start: 9,
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End: 12,
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},
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&analysis.Token{
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Term: []byte("は"),
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Type: analysis.Ideographic,
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Position: 5,
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Start: 12,
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End: 15,
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},
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&analysis.Token{
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Term: []byte("世"),
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Type: analysis.Ideographic,
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Position: 6,
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Start: 15,
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End: 18,
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},
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&analysis.Token{
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Term: []byte("界"),
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Type: analysis.Ideographic,
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Position: 7,
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Start: 18,
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End: 21,
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("こ"),
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Type: analysis.Single,
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Position: 1,
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Start: 0,
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End: 3,
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},
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&analysis.Token{
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Term: []byte("こん"),
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Type: analysis.Double,
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Position: 1,
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Start: 0,
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End: 6,
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},
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&analysis.Token{
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Term: []byte("ん"),
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Type: analysis.Single,
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Position: 2,
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Start: 3,
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End: 6,
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},
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&analysis.Token{
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Term: []byte("んに"),
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Type: analysis.Double,
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Position: 2,
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Start: 3,
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End: 9,
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},
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&analysis.Token{
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Term: []byte("に"),
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Type: analysis.Single,
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Position: 3,
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Start: 6,
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End: 9,
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},
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&analysis.Token{
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Term: []byte("にち"),
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Type: analysis.Double,
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Position: 3,
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Start: 6,
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End: 12,
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},
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&analysis.Token{
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Term: []byte("ち"),
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Type: analysis.Single,
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Position: 4,
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Start: 9,
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End: 12,
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},
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&analysis.Token{
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Term: []byte("ちは"),
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Type: analysis.Double,
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Position: 4,
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Start: 9,
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End: 15,
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},
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&analysis.Token{
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Term: []byte("は"),
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Type: analysis.Single,
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Position: 5,
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Start: 12,
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End: 15,
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},
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&analysis.Token{
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Term: []byte("は世"),
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Type: analysis.Double,
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Position: 5,
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Start: 12,
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End: 18,
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},
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&analysis.Token{
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Term: []byte("世"),
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Type: analysis.Single,
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Position: 6,
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Start: 15,
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End: 18,
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},
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&analysis.Token{
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Term: []byte("世界"),
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Type: analysis.Double,
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Position: 6,
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Start: 15,
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End: 21,
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},
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&analysis.Token{
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Term: []byte("界"),
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Type: analysis.Single,
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Position: 7,
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Start: 18,
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End: 21,
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},
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},
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},
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{
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outputUnigram: false,
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("こ"),
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Type: analysis.Ideographic,
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Position: 1,
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Start: 0,
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End: 3,
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},
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&analysis.Token{
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Term: []byte("ん"),
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Type: analysis.Ideographic,
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Position: 2,
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Start: 3,
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End: 6,
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},
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&analysis.Token{
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Term: []byte("に"),
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Type: analysis.Ideographic,
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Position: 3,
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Start: 6,
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End: 9,
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},
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&analysis.Token{
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Term: []byte("ち"),
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Type: analysis.Ideographic,
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Position: 4,
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Start: 9,
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End: 12,
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},
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&analysis.Token{
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Term: []byte("は"),
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Type: analysis.Ideographic,
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Position: 5,
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Start: 12,
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End: 15,
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},
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&analysis.Token{
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Term: []byte("cat"),
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Type: analysis.AlphaNumeric,
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Position: 6,
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Start: 12,
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End: 15,
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},
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&analysis.Token{
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Term: []byte("世"),
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Type: analysis.Ideographic,
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Position: 7,
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Start: 18,
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End: 21,
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},
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&analysis.Token{
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Term: []byte("界"),
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Type: analysis.Ideographic,
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Position: 8,
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Start: 21,
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End: 24,
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("こん"),
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Type: analysis.Double,
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Position: 1,
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Start: 0,
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End: 6,
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},
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&analysis.Token{
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Term: []byte("んに"),
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Type: analysis.Double,
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Position: 2,
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Start: 3,
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End: 9,
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},
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&analysis.Token{
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Term: []byte("にち"),
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Type: analysis.Double,
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Position: 3,
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Start: 6,
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End: 12,
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},
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&analysis.Token{
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Term: []byte("ちは"),
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Type: analysis.Double,
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Position: 4,
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Start: 9,
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End: 15,
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},
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&analysis.Token{
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Term: []byte("cat"),
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Type: analysis.AlphaNumeric,
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Position: 5,
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Start: 12,
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End: 15,
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},
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&analysis.Token{
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Term: []byte("世界"),
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Type: analysis.Double,
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Position: 6,
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Start: 18,
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End: 24,
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},
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},
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},
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{
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outputUnigram: false,
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input: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("パイプライン"),
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Type: analysis.Ideographic,
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Position: 1,
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Start: 0,
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End: 18,
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},
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},
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output: analysis.TokenStream{
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&analysis.Token{
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Term: []byte("パイ"),
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Type: analysis.Double,
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Position: 1,
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Start: 0,
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End: 6,
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},
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&analysis.Token{
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Term: []byte("イプ"),
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Type: analysis.Double,
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Position: 2,
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Start: 3,
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End: 9,
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},
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&analysis.Token{
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Term: []byte("プラ"),
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Type: analysis.Double,
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Position: 3,
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Start: 6,
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End: 12,
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},
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&analysis.Token{
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Term: []byte("ライ"),
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Type: analysis.Double,
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Position: 4,
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Start: 9,
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End: 15,
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},
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&analysis.Token{
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Term: []byte("イン"),
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Type: analysis.Double,
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Position: 5,
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Start: 12,
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End: 18,
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},
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},
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},
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}
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for _, test := range tests {
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cjkBigramFilter := NewCJKBigramFilter(test.outputUnigram)
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actual := cjkBigramFilter.Filter(test.input)
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if !reflect.DeepEqual(actual, test.output) {
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t.Errorf("expected %s, got %s", test.output, actual)
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}
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}
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}
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