fix whitespace tokenizer

previously would fail to split ascii running into ideographic

analysis/tokenizers/whitespace_tokenizer/whitespace_tokenizer.go

@@ -19,7 +19,7 @@ import (
 
 const Name = "whitespace"
 
-var whitespaceTokenizerRegexp = regexp.MustCompile(`\p{Han}|\p{Hangul}|\p{Hiragana}|\p{Katakana}|[^\p{Z}\p{P}\p{C}]+`)
+var whitespaceTokenizerRegexp = regexp.MustCompile(`\p{Han}|\p{Hangul}|\p{Hiragana}|\p{Katakana}|[^\p{Z}\p{P}\p{C}\p{Han}\p{Hangul}\p{Hiragana}\p{Katakana}]+`)
 
 func TokenizerConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.Tokenizer, error) {
 	return regexp_tokenizer.NewRegexpTokenizer(whitespaceTokenizerRegexp), nil

analysis/tokenizers/whitespace_tokenizer/whitespace_tokenizer_test.go

@@ -0,0 +1,132 @@
+//  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 whitespace_tokenizer
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/blevesearch/bleve/analysis"
+	"github.com/blevesearch/bleve/analysis/tokenizers/regexp_tokenizer"
+)
+
+func TestBoundary(t *testing.T) {
+
+	tests := []struct {
+		input  []byte
+		output analysis.TokenStream
+	}{
+		{
+			[]byte("Hello World."),
+			analysis.TokenStream{
+				{
+					Start:    0,
+					End:      5,
+					Term:     []byte("Hello"),
+					Position: 1,
+					Type:     analysis.AlphaNumeric,
+				},
+				{
+					Start:    6,
+					End:      11,
+					Term:     []byte("World"),
+					Position: 2,
+					Type:     analysis.AlphaNumeric,
+				},
+			},
+		},
+		{
+			[]byte("こんにちは世界"),
+			analysis.TokenStream{
+				{
+					Start:    0,
+					End:      3,
+					Term:     []byte("こ"),
+					Position: 1,
+					Type:     analysis.Ideographic,
+				},
+				{
+					Start:    3,
+					End:      6,
+					Term:     []byte("ん"),
+					Position: 2,
+					Type:     analysis.Ideographic,
+				},
+				{
+					Start:    6,
+					End:      9,
+					Term:     []byte("に"),
+					Position: 3,
+					Type:     analysis.Ideographic,
+				},
+				{
+					Start:    9,
+					End:      12,
+					Term:     []byte("ち"),
+					Position: 4,
+					Type:     analysis.Ideographic,
+				},
+				{
+					Start:    12,
+					End:      15,
+					Term:     []byte("は"),
+					Position: 5,
+					Type:     analysis.Ideographic,
+				},
+				{
+					Start:    15,
+					End:      18,
+					Term:     []byte("世"),
+					Position: 6,
+					Type:     analysis.Ideographic,
+				},
+				{
+					Start:    18,
+					End:      21,
+					Term:     []byte("界"),
+					Position: 7,
+					Type:     analysis.Ideographic,
+				},
+			},
+		},
+		{
+			[]byte(""),
+			analysis.TokenStream{},
+		},
+		{
+			[]byte("abc界"),
+			analysis.TokenStream{
+				{
+					Start:    0,
+					End:      3,
+					Term:     []byte("abc"),
+					Position: 1,
+					Type:     analysis.AlphaNumeric,
+				},
+				{
+					Start:    3,
+					End:      6,
+					Term:     []byte("界"),
+					Position: 2,
+					Type:     analysis.Ideographic,
+				},
+			},
+		},
+	}
+
+	for _, test := range tests {
+		tokenizer := regexp_tokenizer.NewRegexpTokenizer(whitespaceTokenizerRegexp)
+		actual := tokenizer.Tokenize(test.input)
+
+		if !reflect.DeepEqual(actual, test.output) {
+			t.Errorf("Expected %v, got %v for %s", test.output, actual, string(test.input))
+		}
+	}
+}