33 lines
1.2 KiB
Go
33 lines
1.2 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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package html_char_filter
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import (
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"regexp"
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"github.com/couchbaselabs/bleve/analysis/char_filters/regexp_char_filter"
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)
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// the origin of this regex is here:
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// http://haacked.com/archive/2004/10/25/usingregularexpressionstomatchhtml.aspx/
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// slightly modified by me to also match the DOCTYPE
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const htmlTagPattern = `</?[!\w]+((\s+\w+(\s*=\s*(?:".*?"|'.*?'|[^'">\s]+))?)+\s*|\s*)/?>`
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var htmlRegex = regexp.MustCompile(htmlTagPattern)
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type HtmlCharFilter struct {
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*regexp_char_filter.RegexpCharFilter
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}
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func NewHtmlCharFilter() *HtmlCharFilter {
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return &HtmlCharFilter{
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regexp_char_filter.NewRegexpCharFilter(htmlRegex, []byte{' '}),
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}
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}
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