Adding upstream version 2.5.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

search/query/query_string.go

@@ -0,0 +1,69 @@
+//  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 query
+
+import (
+	"context"
+
+	"github.com/blevesearch/bleve/v2/mapping"
+	"github.com/blevesearch/bleve/v2/search"
+	index "github.com/blevesearch/bleve_index_api"
+)
+
+type QueryStringQuery struct {
+	Query    string `json:"query"`
+	BoostVal *Boost `json:"boost,omitempty"`
+}
+
+// NewQueryStringQuery creates a new Query used for
+// finding documents that satisfy a query string.  The
+// query string is a small query language for humans.
+func NewQueryStringQuery(query string) *QueryStringQuery {
+	return &QueryStringQuery{
+		Query: query,
+	}
+}
+
+func (q *QueryStringQuery) SetBoost(b float64) {
+	boost := Boost(b)
+	q.BoostVal = &boost
+}
+
+func (q *QueryStringQuery) Boost() float64 {
+	return q.BoostVal.Value()
+}
+
+func (q *QueryStringQuery) Parse() (Query, error) {
+	return parseQuerySyntax(q.Query)
+}
+
+func (q *QueryStringQuery) Searcher(ctx context.Context, i index.IndexReader, m mapping.IndexMapping, options search.SearcherOptions) (search.Searcher, error) {
+	newQuery, err := parseQuerySyntax(q.Query)
+	if err != nil {
+		return nil, err
+	}
+	return newQuery.Searcher(ctx, i, m, options)
+}
+
+func (q *QueryStringQuery) Validate() error {
+	newQuery, err := parseQuerySyntax(q.Query)
+	if err != nil {
+		return err
+	}
+	if newQuery, ok := newQuery.(ValidatableQuery); ok {
+		return newQuery.Validate()
+	}
+	return nil
+}