switch to subtags for tourism=information and natural=water

lib-lua/themes/nominatim/presets.lua

@@ -16,6 +16,43 @@ local function filter_footways(place)
     return false
 end
 
+local function include_when_tag_present(key, value, named)
+    if named then
+        return function(place)
+                   if place.has_name and place.intags[key] == value then
+                       return place
+                   end
+                   return false
+               end
+    else
+        return function(place)
+                   if place.intags[key] == value then
+                       return place
+                   end
+                   return false
+               end
+    end
+end
+
+local function exclude_when_key_present(key, named)
+    if named then
+        return function(place)
+                   if place.has_name and place.intags[key] == nil then
+                       return place
+                   end
+                   return false
+               end
+    else
+        return function(place)
+                   if place.intags[key] == nil then
+                       return place
+                   end
+                   return false
+               end
+
+    end
+end
+
 -- Main tag definition
 
 module.MAIN_TAGS = {}
@@ -65,9 +102,21 @@ module.MAIN_TAGS.natural = {
                yes = 'delete',
                no = 'delete',
                coastline = 'delete',
-               saddle = 'fallback'},
+               saddle = 'fallback',
+               water = exclude_when_key_present('water', true)},
     mountain_pass = {'always',
-                     no = 'delete'}
+                     no = 'delete'},
+    water = {include_when_tag_present('natural', 'water', true),
+             river = 'never',
+             stream = 'never',
+             canal = 'never',
+             ditch = 'never',
+             drain = 'never',
+             fish_pass = 'never',
+             yes = 'delete',
+             intermittent = 'delete',
+             tidal = 'delete'
+             }
 }
 
 module.MAIN_TAGS_POIS = function (group)
@@ -114,6 +163,7 @@ module.MAIN_TAGS_POIS = function (group)
     historic = {'always',
                 yes = group,
                 no = group},
+    information = {include_when_tag_present('tourism', 'information')},
     junction = {'fallback',
                 no = group},
     leisure = {'always',
@@ -148,7 +198,8 @@ module.MAIN_TAGS_POIS = function (group)
             no = group},
     tourism = {'always',
                no = group,
-               yes = group},
+               yes = group,
+               information = 'fallback'},
     tunnel = {'named_with_key',
               no = group}
 } end

test/bdd/osm2pgsql/import/tags.feature

@@ -223,3 +223,36 @@ Feature: Tag evaluation
             | object | name+name |
             | W2     | Road      |
             | W5     | Road      |
+
+
+    Scenario: Tourism information
+        When loading osm data
+            """
+            n100 Ttourism=information
+            n101 Ttourism=information,name=Generic
+            n102 Ttourism=information,information=guidepost
+            n103 Thighway=information,information=house
+            """
+        Then place contains exactly
+            | object           | type        |
+            | N101:tourism     | information |
+            | N102:information | guidepost   |
+            | N103:highway     | information |
+
+
+    Scenario: Water feautures
+        When loading osm data
+            """
+            n20 Tnatural=water
+            n21 Tnatural=water,name=SomePond
+            n22 Tnatural=water,water=pond
+            n23 Tnatural=water,water=pond,name=Pond
+            n24 Tnatural=water,water=river,name=BigRiver
+            n25 Tnatural=water,water=yes
+            n26 Tnatural=water,water=yes,name=Random
+            """
+        Then place contains exactly
+            | object      | type  |
+            | N21:natural | water |
+            | N23:water   | pond  |
+            | N26:natural | water |