Search bar for issues/pulls (#530)

vendor/github.com/blevesearch/bleve/document/field_composite.go

@@ -0,0 +1,99 @@
+//  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 document
+
+import (
+	"github.com/blevesearch/bleve/analysis"
+)
+
+const DefaultCompositeIndexingOptions = IndexField
+
+type CompositeField struct {
+	name                 string
+	includedFields       map[string]bool
+	excludedFields       map[string]bool
+	defaultInclude       bool
+	options              IndexingOptions
+	totalLength          int
+	compositeFrequencies analysis.TokenFrequencies
+}
+
+func NewCompositeField(name string, defaultInclude bool, include []string, exclude []string) *CompositeField {
+	return NewCompositeFieldWithIndexingOptions(name, defaultInclude, include, exclude, DefaultCompositeIndexingOptions)
+}
+
+func NewCompositeFieldWithIndexingOptions(name string, defaultInclude bool, include []string, exclude []string, options IndexingOptions) *CompositeField {
+	rv := &CompositeField{
+		name:                 name,
+		options:              options,
+		defaultInclude:       defaultInclude,
+		includedFields:       make(map[string]bool, len(include)),
+		excludedFields:       make(map[string]bool, len(exclude)),
+		compositeFrequencies: make(analysis.TokenFrequencies),
+	}
+
+	for _, i := range include {
+		rv.includedFields[i] = true
+	}
+	for _, e := range exclude {
+		rv.excludedFields[e] = true
+	}
+
+	return rv
+}
+
+func (c *CompositeField) Name() string {
+	return c.name
+}
+
+func (c *CompositeField) ArrayPositions() []uint64 {
+	return []uint64{}
+}
+
+func (c *CompositeField) Options() IndexingOptions {
+	return c.options
+}
+
+func (c *CompositeField) Analyze() (int, analysis.TokenFrequencies) {
+	return c.totalLength, c.compositeFrequencies
+}
+
+func (c *CompositeField) Value() []byte {
+	return []byte{}
+}
+
+func (c *CompositeField) NumPlainTextBytes() uint64 {
+	return 0
+}
+
+func (c *CompositeField) includesField(field string) bool {
+	shouldInclude := c.defaultInclude
+	_, fieldShouldBeIncluded := c.includedFields[field]
+	if fieldShouldBeIncluded {
+		shouldInclude = true
+	}
+	_, fieldShouldBeExcluded := c.excludedFields[field]
+	if fieldShouldBeExcluded {
+		shouldInclude = false
+	}
+	return shouldInclude
+}
+
+func (c *CompositeField) Compose(field string, length int, freq analysis.TokenFrequencies) {
+	if c.includesField(field) {
+		c.totalLength += length
+		c.compositeFrequencies.MergeAll(field, freq)
+	}
+}