71 lines
1.8 KiB
Go
71 lines
1.8 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 highlight
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import (
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"sort"
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"github.com/blevesearch/bleve/search"
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)
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type TermLocation struct {
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Term string
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Pos int
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Start int
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End int
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}
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func (tl *TermLocation) Overlaps(other *TermLocation) bool {
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if other.Start >= tl.Start && other.Start < tl.End {
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return true
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} else if tl.Start >= other.Start && tl.Start < other.End {
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return true
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}
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return false
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}
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type TermLocations []*TermLocation
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func (t TermLocations) Len() int { return len(t) }
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func (t TermLocations) Swap(i, j int) { t[i], t[j] = t[j], t[i] }
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func (t TermLocations) Less(i, j int) bool { return t[i].Start < t[j].Start }
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func (t TermLocations) MergeOverlapping() {
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var lastTl *TermLocation
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for i, tl := range t {
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if lastTl == nil && tl != nil {
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lastTl = tl
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} else if lastTl != nil && tl != nil {
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if lastTl.Overlaps(tl) {
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// ok merge this with previous
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lastTl.End = tl.End
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t[i] = nil
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}
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}
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}
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}
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func OrderTermLocations(tlm search.TermLocationMap) TermLocations {
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rv := make(TermLocations, 0)
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for term, locations := range tlm {
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for _, location := range locations {
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tl := TermLocation{
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Term: term,
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Pos: int(location.Pos),
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Start: int(location.Start),
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End: int(location.End),
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}
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rv = append(rv, &tl)
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}
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}
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sort.Sort(rv)
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return rv
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}
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