Adding upstream version 2.5.1.

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

analysis/lang/el/stop_filter_el.go

@@ -0,0 +1,36 @@
+//  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 el
+
+import (
+	"github.com/blevesearch/bleve/v2/analysis"
+	"github.com/blevesearch/bleve/v2/analysis/token/stop"
+	"github.com/blevesearch/bleve/v2/registry"
+)
+
+func StopTokenFilterConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.TokenFilter, error) {
+	tokenMap, err := cache.TokenMapNamed(StopName)
+	if err != nil {
+		return nil, err
+	}
+	return stop.NewStopTokensFilter(tokenMap), nil
+}
+
+func init() {
+	err := registry.RegisterTokenFilter(StopName, StopTokenFilterConstructor)
+	if err != nil {
+		panic(err)
+	}
+}

analysis/lang/el/stop_words_el.go

@@ -0,0 +1,105 @@
+package el
+
+import (
+	"github.com/blevesearch/bleve/v2/analysis"
+	"github.com/blevesearch/bleve/v2/registry"
+)
+
+const StopName = "stop_el"
+
+// this content was obtained from:
+// lucene-4.7.2/analysis/common/src/resources/org/apache/lucene/analysis/
+// ` was changed to ' to allow for literal string
+
+var GreekStopWords = []byte(`# Lucene Greek Stopwords list
+# Note: by default this file is used after GreekLowerCaseFilter,
+# so when modifying this file use 'σ' instead of 'ς' 
+ο
+η
+το
+οι
+τα
+του
+τησ
+των
+τον
+την
+και 
+κι
+κ
+ειμαι
+εισαι
+ειναι
+ειμαστε
+ειστε
+στο
+στον
+στη
+στην
+μα
+αλλα
+απο
+για
+προσ
+με
+σε
+ωσ
+παρα
+αντι
+κατα
+μετα
+θα
+να
+δε
+δεν
+μη
+μην
+επι
+ενω
+εαν
+αν
+τοτε
+που
+πωσ
+ποιοσ
+ποια
+ποιο
+ποιοι
+ποιεσ
+ποιων
+ποιουσ
+αυτοσ
+αυτη
+αυτο
+αυτοι
+αυτων
+αυτουσ
+αυτεσ
+αυτα
+εκεινοσ
+εκεινη
+εκεινο
+εκεινοι
+εκεινεσ
+εκεινα
+εκεινων
+εκεινουσ
+οπωσ
+ομωσ
+ισωσ
+οσο
+οτι
+`)
+
+func TokenMapConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.TokenMap, error) {
+	rv := analysis.NewTokenMap()
+	err := rv.LoadBytes(GreekStopWords)
+	return rv, err
+}
+
+func init() {
+	err := registry.RegisterTokenMap(StopName, TokenMapConstructor)
+	if err != nil {
+		panic(err)
+	}
+}