Switch from Godep to go vendoring

vendor/github.com/blevesearch/bleve/query_match_phrase.go

@@ -0,0 +1,114 @@
+//  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 bleve
+
+import (
+	"fmt"
+
+	"github.com/blevesearch/bleve/analysis"
+	"github.com/blevesearch/bleve/index"
+	"github.com/blevesearch/bleve/search"
+)
+
+type matchPhraseQuery struct {
+	MatchPhrase string  `json:"match_phrase"`
+	FieldVal    string  `json:"field,omitempty"`
+	Analyzer    string  `json:"analyzer,omitempty"`
+	BoostVal    float64 `json:"boost,omitempty"`
+}
+
+// NewMatchPhraseQuery creates a new Query object
+// for matching phrases in the index.
+// An Analyzer is chosen based on the field.
+// Input text is analyzed using this analyzer.
+// Token terms resulting from this analysis are
+// used to build a search phrase.  Result documents
+// must match this phrase.
+func NewMatchPhraseQuery(matchPhrase string) *matchPhraseQuery {
+	return &matchPhraseQuery{
+		MatchPhrase: matchPhrase,
+		BoostVal:    1.0,
+	}
+}
+
+func (q *matchPhraseQuery) Boost() float64 {
+	return q.BoostVal
+}
+
+func (q *matchPhraseQuery) SetBoost(b float64) Query {
+	q.BoostVal = b
+	return q
+}
+
+func (q *matchPhraseQuery) Field() string {
+	return q.FieldVal
+}
+
+func (q *matchPhraseQuery) SetField(f string) Query {
+	q.FieldVal = f
+	return q
+}
+
+func (q *matchPhraseQuery) Searcher(i index.IndexReader, m *IndexMapping, explain bool) (search.Searcher, error) {
+	field := q.FieldVal
+	if q.FieldVal == "" {
+		field = m.DefaultField
+	}
+
+	analyzerName := ""
+	if q.Analyzer != "" {
+		analyzerName = q.Analyzer
+	} else {
+		analyzerName = m.analyzerNameForPath(field)
+	}
+	analyzer := m.analyzerNamed(analyzerName)
+	if analyzer == nil {
+		return nil, fmt.Errorf("no analyzer named '%s' registered", q.Analyzer)
+	}
+
+	tokens := analyzer.Analyze([]byte(q.MatchPhrase))
+	if len(tokens) > 0 {
+		phrase := tokenStreamToPhrase(tokens)
+		phraseQuery := NewPhraseQuery(phrase, field).SetBoost(q.BoostVal)
+		return phraseQuery.Searcher(i, m, explain)
+	}
+	noneQuery := NewMatchNoneQuery()
+	return noneQuery.Searcher(i, m, explain)
+}
+
+func tokenStreamToPhrase(tokens analysis.TokenStream) []string {
+	firstPosition := int(^uint(0) >> 1)
+	lastPosition := 0
+	for _, token := range tokens {
+		if token.Position < firstPosition {
+			firstPosition = token.Position
+		}
+		if token.Position > lastPosition {
+			lastPosition = token.Position
+		}
+	}
+	phraseLen := lastPosition - firstPosition + 1
+	if phraseLen > 0 {
+		rv := make([]string, phraseLen)
+		for i := 0; i < phraseLen; i++ {
+			rv[i] = ""
+		}
+		for _, token := range tokens {
+			pos := token.Position - firstPosition
+			rv[pos] = string(token.Term)
+		}
+		return rv
+	}
+	return nil
+}
+
+func (q *matchPhraseQuery) Validate() error {
+	return nil
+}