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bleve/analysis/char_filters/regexp_char_filter/regexp_char_filter.go

31 lines
1.0 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 regexp_char_filter
import (
"bytes"
"regexp"
)
type RegexpCharFilter struct {
r *regexp.Regexp
replacement []byte
}
func NewRegexpCharFilter(r *regexp.Regexp, replacement []byte) *RegexpCharFilter {
return &RegexpCharFilter{
r: r,
replacement: replacement,
}
}
func (s *RegexpCharFilter) Filter(input []byte) []byte {
return s.r.ReplaceAllFunc(input, func(in []byte) []byte { return bytes.Repeat(s.replacement, len(in)) })
}