feat(aliases): support for mapping tags to name.default aliases

.jshintrc

@@ -17,6 +17,6 @@
   "undef": true,
   "unused": false,
   "maxparams": 4,
-  "maxdepth": 4,
+  "maxdepth": 5,
   "maxlen": 140
 }

schema/name_osm.js

@@ -7,21 +7,43 @@
 
   eg. tags['alt_name'] -> doc.name['alternative']
 
+  The value 'default' is special, it defines the name used by default
+  for elasticsearch queries, it has the unique ability to specify multiple
+  keys with a value of 'default'.
+
+  When multiple keys have the value 'default' then they are considered
+  as aliases of the default field.
+
+  The '_primary' property defined below defines which of those aliases
+  is considered the 'primary default name' for label generation.
+
+  No values other than 'default' should be specified more than once.
+
   @ref: http://wiki.openstreetmap.org/wiki/Key:name
   @ref: http://wiki.openstreetmap.org/wiki/Names
 **/
 
 var OSM_NAMING_SCHEMA = {
   'name':             'default',
-  'loc_name':         'local',
-  'alt_name':         'alternative',
+  'loc_name':         'default',
+  'alt_name':         'default',
   'int_name':         'international',
   'nat_name':         'national',
   'official_name':    'official',
   'old_name':         'old',
   'reg_name':         'regional',
-  'short_name':       'short',
+  'short_name':       'default',
   'sorting_name':     'sorting'
 };
 
+// this property is considered the 'primary name'
+// for label generation, the others are considered
+// secondary or 'aliases'.
+Object.defineProperty(OSM_NAMING_SCHEMA, '_primary', {
+  value: 'name',
+  enumerable: false,
+  configurable: false,
+  writable: false
+});
+
 module.exports = OSM_NAMING_SCHEMA;

stream/tag_mapper.js

@@ -48,7 +48,13 @@ module.exports = function(){
         else if( tag in NAME_SCHEMA ){
           var val2 = trim( tags[tag] );
           if( val2 ){
-            doc.setName( NAME_SCHEMA[tag], val2 );
+            if( tag === NAME_SCHEMA._primary ){
+              doc.setName( NAME_SCHEMA[tag], val2 );
+            } else if ( 'default' === NAME_SCHEMA[tag] ) {
+              doc.setNameAlias( NAME_SCHEMA[tag], val2 );
+            } else {
+              doc.setName( NAME_SCHEMA[tag], val2 );
+            }
           }
         }