1//  Copyright (c) 2016 Couchbase, Inc.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// 		http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package letter
16
17import (
18	"unicode"
19
20	"github.com/blevesearch/bleve/analysis"
21	"github.com/blevesearch/bleve/analysis/tokenizer/character"
22	"github.com/blevesearch/bleve/registry"
23)
24
25const Name = "letter"
26
27func TokenizerConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.Tokenizer, error) {
28	return character.NewCharacterTokenizer(unicode.IsLetter), nil
29}
30
31func init() {
32	registry.RegisterTokenizer(Name, TokenizerConstructor)
33}
34