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// 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 in
import (
"bytes"
"github.com/blevesearch/bleve/analysis"
"github.com/blevesearch/bleve/registry"
)
const NormalizeName = "normalize_in"
type IndicNormalizeFilter struct {
}
func NewIndicNormalizeFilter() *IndicNormalizeFilter {
return &IndicNormalizeFilter{}
}
func (s *IndicNormalizeFilter) Filter(input analysis.TokenStream) analysis.TokenStream {
for _, token := range input {
runes := bytes.Runes(token.Term)
runes = normalize(runes)
token.Term = analysis.BuildTermFromRunes(runes)
}
return input
}
func NormalizerFilterConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.TokenFilter, error) {
return NewIndicNormalizeFilter(), nil
}
func init() {
registry.RegisterTokenFilter(NormalizeName, NormalizerFilterConstructor)
}
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