//  Copyright (c) 2016 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 letter

import (
	"unicode"

	"github.com/blevesearch/bleve/analysis"
	"github.com/blevesearch/bleve/analysis/tokenizer/character"
	"github.com/blevesearch/bleve/registry"
)

const Name = "letter"

func TokenizerConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.Tokenizer, error) {
	return character.NewCharacterTokenizer(unicode.IsLetter), nil
}

func init() {
	registry.RegisterTokenizer(Name, TokenizerConstructor)
}