gistfile1.diff

diff --git a/src/common/class.wpes-analyzer-builder.php b/src/common/class.wpes-analyzer-builder.php
index 0357ea4..5787479 100644
--- a/src/common/class.wpes-analyzer-builder.php
+++ b/src/common/class.wpes-analyzer-builder.php
@@ -340,6 +340,29 @@ class WPES_Analyzer_Builder {
                continue;
            }
  
+           if ( 'de' == $lang ) {
+               ////From: http://gibrown.wordpress.com/2013/05/01/three-principles-for-multilingal-indexing-in-elasticsearch/#comment-857
+               $settings['analyzer'][ $config['name'] ]['tokenizer'] = $config['tokenizer'];
+               $settings['filter'][$lang . '_stop_filter'] = array(
+                   'type' => 'stop',
+                   'stopwords' => array( $config['stopwords'] )
+               );
+               $settings['filter'][ $lang . '_stem_filter' ] = array(
+                   'type' => 'stemmer',
+                   'name' => $config['stemming']
+               );
+               $settings['char_filter'][$lang . '_char_filter'] = array(
+                   'type' => "mapping",
+                   'mappings' => array( 'ß=>ss', 'Ä=>ae', 'ä=>ae', 'Ö=>oe', 'ö=>oe', 'Ü=>ue', 'ü=>ue', 'ph=>f' ),
+               );
+               $settings['analyzer'][ $config['name'] ]['filter'][] = 'icu_normalizer';
+               $settings['analyzer'][ $config['name'] ]['filter'][] = $lang . '_stop_filter';
+               $settings['analyzer'][ $config['name'] ]['filter'][] = $lang . '_stem_filter';
+               $settings['analyzer'][ $config['name'] ]['filter'][] = 'icu_folding';
+               $settings['analyzer'][ $config['name'] ]['char_filter'] = array( $lang . '_char_filter' );
+               continue;
+           }
+
            /////////////////////////////////////////////////
            //First filter is normalization
            // normalization needs to be before stopwords so we combine UTF-8 characters (eg ê)