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gitea/vendor/github.com/blevesearch/bleve/search/util.go
2017-01-25 10:43:02 +08:00

42 lines
1.3 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 search
func MergeLocations(locations []FieldTermLocationMap) FieldTermLocationMap {
rv := locations[0]
for i := 1; i < len(locations); i++ {
nextLocations := locations[i]
for field, termLocationMap := range nextLocations {
rvTermLocationMap, rvHasField := rv[field]
if rvHasField {
rv[field] = MergeTermLocationMaps(rvTermLocationMap, termLocationMap)
} else {
rv[field] = termLocationMap
}
}
}
return rv
}
func MergeTermLocationMaps(rv, other TermLocationMap) TermLocationMap {
for term, locationMap := range other {
// for a given term/document there cannot be different locations
// if they came back from different clauses, overwrite is ok
rv[term] = locationMap
}
return rv
}