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bleve/analysis/char/zerowidthnonjoiner/zerowidthnonjoiner.go

37 lines
1.2 KiB
Go

// 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 zerowidthnonjoiner
import (
"regexp"
"github.com/blevesearch/bleve/analysis"
regexpCharFilter "github.com/blevesearch/bleve/analysis/char/regexp"
"github.com/blevesearch/bleve/registry"
)
const Name = "zero_width_spaces"
var zeroWidthNonJoinerRegexp = regexp.MustCompile(`\x{200C}`)
func CharFilterConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.CharFilter, error) {
replaceBytes := []byte(" ")
return regexpCharFilter.NewRegexpCharFilter(zeroWidthNonJoinerRegexp, replaceBytes), nil
}
func init() {
registry.RegisterCharFilter(Name, CharFilterConstructor)
}