2014-07-30 18:30:38 +02:00
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// 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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2014-07-03 20:54:12 +02:00
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package search
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import ()
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const DEFAULT_HTML_HIGHLIGHT_BEFORE = "<b>"
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const DEFAULT_HTML_HIGHLIGHT_AFTER = "</b>"
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type HTMLFragmentFormatter struct {
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before string
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after string
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}
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func NewHTMLFragmentFormatter() *HTMLFragmentFormatter {
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return &HTMLFragmentFormatter{
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before: DEFAULT_HTML_HIGHLIGHT_BEFORE,
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after: DEFAULT_HTML_HIGHLIGHT_AFTER,
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}
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}
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func NewHTMLFragmentFormatterCustom(before, after string) *HTMLFragmentFormatter {
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return &HTMLFragmentFormatter{
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before: before,
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after: after,
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}
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}
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func (a *HTMLFragmentFormatter) Format(f *Fragment, tlm TermLocationMap) string {
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orderedTermLocations := OrderTermLocations(tlm)
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rv := ""
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curr := f.start
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for _, termLocation := range orderedTermLocations {
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if termLocation.Start < curr {
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continue
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}
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if termLocation.End > f.end {
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break
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}
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// add the stuff before this location
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rv += string(f.orig[curr:termLocation.Start])
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// add the color
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rv += a.before
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// add the term itself
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rv += string(f.orig[termLocation.Start:termLocation.End])
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// reset the color
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rv += a.after
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// update current
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curr = termLocation.End
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}
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// add any remaining text after the last token
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rv += string(f.orig[curr:f.end])
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return rv
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}
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