Rework the translatable map key to be driven by a YAML file listing the

entries to show for each layer and zoom level.

config/key.yml

@@ -0,0 +1,52 @@
+mapnik:
+  - { min_zoom: 0, max_zoom: 18, name: motorway, image: motorway.png }
+  - { min_zoom: 0, max_zoom: 11, name: trunk, image: trunk.png }
+  - { min_zoom: 12, max_zoom: 18, name: trunk, image: trunk12.png }
+  - { min_zoom: 7, max_zoom: 11, name: primary, image: primary.png }
+  - { min_zoom: 12, max_zoom: 18, name: primary, image: primary12.png }
+  - { min_zoom: 9, max_zoom: 11, name: secondary, image: secondary.png }
+  - { min_zoom: 12, max_zoom: 18, name: secondary, image: secondary12.png }
+  - { min_zoom: 13, max_zoom: 18, name: unsurfaced, image: unsurfaced.png }
+  - { min_zoom: 13, max_zoom: 18, name: track, image: track.png }
+  - { min_zoom: 13, max_zoom: 18, name: byway, image: byway.png }
+  - { min_zoom: 13, max_zoom: 18, name: bridleway, image: bridleway.png }
+  - { min_zoom: 13, max_zoom: 18, name: cycleway, image: cycleway.png }
+  - { min_zoom: 13, max_zoom: 18, name: footway, image: footway.png }
+  - { min_zoom: 8, max_zoom: 12, name: rail, image: rail.png }
+  - { min_zoom: 13, max_zoom: 18, name: rail, image: rail13.png }
+  - { min_zoom: 13, max_zoom: 18, name: subway, image: subway.png }
+  - { min_zoom: 13, max_zoom: 18, name: tram, image: tram.png }
+  - { min_zoom: 12, max_zoom: 18, name: cable, image: cable.png }
+  - { min_zoom: 11, max_zoom: 18, name: runway, image: runway.png }
+  - { min_zoom: 12, max_zoom: 18, name: apron, image: apron.png }
+  - { min_zoom: 0, max_zoom: 18, name: admin, image: admin.png }
+  - { min_zoom: 9, max_zoom: 18, name: forest, image: forest.png }
+  - { min_zoom: 10, max_zoom: 18, name: wood, image: wood.png }
+  - { min_zoom: 10, max_zoom: 18, name: golf, image: golf.png }
+  - { min_zoom: 10, max_zoom: 18, name: park, image: park.png }
+  - { min_zoom: 8, max_zoom: 18, name: resident, image: resident.png }
+  - { min_zoom: 10, max_zoom: 18, name: tourist, image: tourist.png }
+  - { min_zoom: 10, max_zoom: 18, name: common, image: common.png }
+  - { min_zoom: 10, max_zoom: 18, name: retail, image: retail.png }
+  - { min_zoom: 10, max_zoom: 18, name: industrial, image: industrial.png }
+  - { min_zoom: 10, max_zoom: 18, name: commercial, image: commercial.png }
+  - { min_zoom: 10, max_zoom: 18, name: heathland, image: heathland.png }
+  - { min_zoom: 8, max_zoom: 18, name: lake, image: lake.png }
+  - { min_zoom: 10, max_zoom: 18, name: farm, image: farm.png }
+  - { min_zoom: 10, max_zoom: 18, name: brownfield, image: brownfield.png }
+  - { min_zoom: 11, max_zoom: 18, name: cemetery, image: cemetery.png }
+  - { min_zoom: 11, max_zoom: 18, name: allotments, image: allotments.png }
+  - { min_zoom: 11, max_zoom: 18, name: pitch, image: pitch.png }
+  - { min_zoom: 11, max_zoom: 18, name: centre, image: centre.png }
+  - { min_zoom: 11, max_zoom: 18, name: reserve, image: reserve.png }
+  - { min_zoom: 11, max_zoom: 18, name: military, image: military.png }
+  - { min_zoom: 12, max_zoom: 18, name: school, image: school.png }
+  - { min_zoom: 12, max_zoom: 18, name: building, image: building.png }
+  - { min_zoom: 12, max_zoom: 18, name: station, image: station.png }
+  - { min_zoom: 12, max_zoom: 18, name: summit, image: summit.png }
+  - { min_zoom: 12, max_zoom: 18, name: tunnel, image: tunnel.png }
+  - { min_zoom: 13, max_zoom: 18, name: bridge, image: bridge.png }
+  - { min_zoom: 15, max_zoom: 18, name: private, image: private.png }
+  - { min_zoom: 15, max_zoom: 18, name: permissive, image: permissive.png }
+  - { min_zoom: 15, max_zoom: 18, name: destination, image: destination.png }
+  - { min_zoom: 12, max_zoom: 18, name: construction, image: construction.png }

config/locales/de.yml

@@ -569,7 +569,7 @@ de:
       map_key: "Legende"
       map_key_tooltip: "Legende für die Mapnik-Karte bei diesem Zoom-Level"
       table:
-        heading: "Legende für Zoomstufe [[zoom_level]]"
+        heading: "Legende für Zoomstufe {{zoom_level}}"
         entry:
           motorway: "Autobahn"
           trunk: "Schnellstraße"

config/locales/en.yml

@@ -569,7 +569,7 @@ en:
       map_key: "Map key"
       map_key_tooltip: "Map key for the mapnik rendering at this zoom level"
       table:
-        heading: "Legend for z[[zoom_level]]"
+        heading: "Legend for z{{zoom_level}}"
         entry:
           motorway: "Motorway"
           trunk: "Trunk road"