examples:
- name: ocean polygons
  input:
    source: ocean
    geometry: polygon
    tags:
      x: 1
      y: 2
  output:
    layer: ocean
    geometry: polygon
    min_zoom: 0
    tags: # no tags

- name: natural=glacier
  input:
    source: osm
    geometry: polygon
    tags:
      natural: glacier
      name: The glacier
      name:en: The glacier (en)
      name:de: The glacier (de)
  output:
  - layer: water_polygons
    geometry: polygon
    min_zoom: 4
    tags:
      kind: glacier
  - layer: water_polygons_labels
    geometry: point
    min_zoom: 14
    tags:
      kind: glacier
      name: The glacier
      name_en: The glacier (en)
      name_de: The glacier (de)

- name: waterway=dock
  input:
    source: osm
    geometry: polygon
    tags:
      waterway: dock
  output:
    layer: water_polygons
    geometry: polygon
    min_zoom: 10
    tags:
      kind: dock

- name: waterway=canal linestring
  input:
    source: osm
    geometry: line
    tags:
      waterway: canal
      name: The Canal
      name:en: The Canal (en)
      name:de: The Canal (de)
  output:
  - layer: water_lines
    geometry: line
    min_zoom: 9
    tags:
      kind: canal
  - layer: water_line_labels
    geometry: line
    min_zoom: 12
    tags:
      kind: canal
      name: The Canal
      name_en: The Canal (en)
      name_de: The Canal (de)

- name: waterway=stream linestring
  input:
    source: osm
    geometry: line
    tags:
      waterway: stream
      name: The Stream
      name:en: The Stream (en)
      name:de: The Stream (de)
  output:
  - layer: water_lines
    geometry: line
    min_zoom: 14
    tags:
      kind: stream
  - layer: water_line_labels
    geometry: line
    min_zoom: 14
    tags:
      kind: stream
      name: The Stream
      name_en: The Stream (en)
      name_de: The Stream (de)

- name: landuse=grass
  input:
    source: osm
    geometry: polygon
    tags:
      landuse: grass
  output:
  - layer: land
    geometry: polygon
    min_zoom: 11
    tags:
      kind: grass

- name: natural=wood
  input:
    source: osm
    geometry: polygon
    tags:
      natural: wood
  output:
  - layer: land
    geometry: polygon
    min_zoom: 7
    tags:
      kind: wood

- name: landuse=forest override kind to wood
  input:
    source: osm
    geometry: polygon
    tags:
      landuse: forest
  output:
  - layer: land
    geometry: polygon
    min_zoom: 7
    tags:
      kind: wood

- name: amenity=parking
  input:
    source: osm
    geometry: polygon
    tags:
      amenity: parking
  output:
  - layer: sites
    geometry: polygon
    min_zoom: 14
    tags:
      kind: parking

- name: building=yes
  input:
    source: osm
    geometry: polygon
    tags:
      building: yes
  output:
  - layer: buildings
    geometry: polygon
    min_zoom: 14

- name: building=house
  input:
    source: osm
    geometry: polygon
    tags:
      building: house
  output:
  - layer: buildings
    geometry: polygon
    min_zoom: 14

- name: address polygon with house number
  input:
    source: osm
    geometry: polygon
    tags:
      addr:housenumber: 123
  output:
  - layer: addresses
    geometry: point
    min_zoom: 14
    tags:
      number: 123

- name: address point with house name
  input:
    source: osm
    geometry: point
    tags:
      addr:housename: the 123 house
  output:
  - layer: addresses
    geometry: point
    min_zoom: 14
    tags:
      name: the 123 house

- name: B27 highway
  input:
    source: osm
    geometry: line
    tags:
      change:lanes:backward: no
      change:lanes:forward: not_left|not_right
      embankment: yes
      highway: primary
      lanes: 3
      lanes:backward: 1
      lanes:forward: 2
      maxspeed: 100
      overtaking:backward: no
      priority_road: designated
      ref: B 27
      sidewalk: no
      source:maxspeed: DE:rural
      surface: asphalt
      zone:traffic: DE:rural
  output:
  - layer: streets
    geometry: line
    min_zoom: 8
    min_size: 0
    tags:
      bridge: false
      kind: primary
      link: false
      rail: false
      surface: asphalt
      tunnel: false
  - layer: street_labels
    geometry: line
    min_zoom: 12
    allow_extra_tags: false
    tags:
      kind: primary
      ref: B 27
      ref_rows: 1
      ref_cols: 4

- name: B39A link
  input:
    source: osm
    geometry: line
    tags:
      cycleway:right: no
      destination: Löwenstein;Obersulm;Ellhofen;Breitenauer See
      destination:colour: ;;;brown
      foot: no
      hazard: traffic_signals
      highway: primary_link
      lanes: 1
      lit: no
      maxspeed: 50
      oneway: yes
      ref: B 39;B 39A
      sidewalk: no
      surface: asphalt
      turn: right
  output:
  - layer: streets
    geometry: line
    min_zoom: 8
    allow_extra_tags: false
    min_size: 0
    tags:
      bridge: false
      kind: primary
      link: true
      rail: false
      surface: asphalt
      tunnel: false
  - layer: street_labels
    geometry: line
    min_zoom: 13
    allow_extra_tags: false
    tags:
      kind: primary
      ref: "B 39\nB 39A"
      ref_rows: 2
      ref_cols: 5

- name: rail with service
  input:
    source: osm
    geometry: line
    tags:
      railway: rail
      service: service_value
  output:
    layer: streets
    geometry: line
    min_zoom: 8
    allow_extra_tags: false
    min_size: 0
    tags:
      bridge: false
      kind: rail
      link: false
      rail: true
      tunnel: false
      service: service_value

- name: narrow_gauge without service
  input:
    source: osm
    geometry: line
    tags:
      railway: narrow_gauge
  output:
    layer: streets
    geometry: line
    min_zoom: 10
    allow_extra_tags: false
    tags:
      bridge: false
      kind: narrow_gauge
      link: false
      rail: true
      tunnel: false

- name: 'track with grade'
  input:
    source: osm
    geometry: line
    tags:
      highway: track
      tracktype: grade2
  output:
    layer: streets
    geometry: line
    min_zoom: 13
    at_zoom: 11
    allow_extra_tags: false
    tags:
      bridge: false
      kind: track
      link: false
      rail: false
      tracktype: grade2
      tunnel: false

- name: 'named path'
  input:
    source: osm
    geometry: line
    tags:
      highway: path
      name: Name
      name:en: English Name
      name:de: German Name
  output:
  - layer: streets
    geometry: line
    tags:
      kind: path
  - layer: street_labels
    geometry: line
    tags:
      kind: path
      name: Name
      name_en: English Name
      name_de: German Name

- name: 'motorway attributes drop below z11'
  input:
    source: osm
    geometry: line
    tags:
      highway: motorway
      tracktype: grade2
  output:
    layer: streets
    geometry: line
    min_zoom: 5
    at_zoom: 10
    allow_extra_tags: false
    tags:
      kind: motorway

- name: 'rail attributes drop below z11'
  input:
    source: osm
    geometry: line
    tags:
      railway: rail
      service: primary
  output:
    layer: streets
    geometry: line
    min_zoom: 8
    at_zoom: 10
    allow_extra_tags: false
    tags:
      kind: rail

- name: 'path bridge'
  input:
    source: osm
    geometry: line
    tags:
      highway: path
      bridge: yes
  output:
    layer: streets
    geometry: line
    min_zoom: 13
    tags:
      bridge: true
      kind: path
      tunnel: false

- name: 'pedestrian tunnel'
  input:
    source: osm
    geometry: line
    tags:
      highway: pedestrian
      tunnel: yes
  output:
    layer: streets
    geometry: line
    tags:
      bridge: false
      kind: pedestrian
      tunnel: true

- name: 'horse'
  input:
    source: osm
    geometry: line
    tags:
      highway: track
      horse: definitely
  output:
    layer: streets
    geometry: line
    tags:
      kind: track
      horse: definitely

- name: 'bicycle'
  input:
    source: osm
    geometry: line
    tags:
      highway: track
      bicycle: definitely
  output:
    layer: streets
    geometry: line
    tags:
      kind: track
      bicycle: definitely

- name: 'aeroway=taxiway'
  input:
    source: osm
    geometry: line
    tags:
      aeroway: taxiway
      ref: N
  output:
    layer: streets
    geometry: line
    min_zoom: 13
    tags:
      kind: taxiway

- name: 'aeroway=runway'
  input:
    source: osm
    geometry: line
    tags:
      aeroway: runway
      ref: 07/25
      surface: concrete:lanes
  output:
    layer: streets
    geometry: line
    min_zoom: 11
    tags:
      kind: runway
      surface: concrete:lanes

- name: 'pedestrian polygon'
  input:
    source: osm
    geometry: polygon
    tags:
      area: yes
      highway: pedestrian
      lit: yes
      surface: paving_stones
      name: 'Name'
      name:en: 'Name (en)'
  output:
  - layer: street_polygons
    geometry: polygon
    min_zoom: 14
    allow_extra_tags: false
    tags:
      bridge: false
      kind: pedestrian
      rail: false
      surface: paving_stones
      tunnel: false
  - layer: street_polygons_labels
    geometry: point
    min_zoom: 14
    allow_extra_tags: false
    tags:
      kind: pedestrian
      name: 'Name'
      name_en: 'Name (en)'

- name: 'ignore pedestrian polygon without area=yes'
  input:
    source: osm
    geometry: polygon
    tags:
      highway: pedestrian
      name: 'Name'
      name:en: 'Name (en)'
  output: [ ]

- name: 'pedestrian polygon bridge'
  input:
    source: osm
    geometry: polygon
    tags:
      area: yes
      highway: service
      bridge: yes
  output:
    layer: street_polygons
    geometry: polygon
    min_zoom: 14
    tags:
      kind: service
      bridge: true

- name: 'motorway junction'
  input:
    source: osm
    geometry: point
    tags:
      highway: motorway_junction
      name: 'Name'
      ref: 'ref'
  output:
    layer: street_labels_points
    geometry: point
    min_zoom: 12
    tags:
      kind: motorway_junction
      name: 'Name'
      ref: 'ref'

- name: 'gondola'
  input:
    source: osm
    geometry: line
    tags:
      aerialway: gondola
      name: 'Name'
  output:
    layer: aerialways
    geometry: line
    min_zoom: 12
    tags:
      kind: gondola

- name: 'train station point'
  input:
    source: osm
    geometry: point
    tags:
      railway: station
      name: 'Name'
  output:
    layer: public_transport
    geometry: point
    allow_extra_tags: false
    tags:
      kind: station
      name: 'Name'

- name: 'airport polygon'
  input:
    source: osm
    geometry: polygon
    tags:
      aeroway: aerodrome
      name: 'Name'
      iata: eye eight a
  output:
    layer: public_transport
    geometry: point
    allow_extra_tags: false
    tags:
      kind: aerodrome
      name: 'Name'
      iata: eye eight a

- name: 'unnamed hamlet'
  input:
    source: osm
    geometry: point
    tags:
      place: hamlet
  output: [ ]

- name: 'boundary_labels'
  input:
    source: admin_points
    geometry: point
    tags:
      WAY_AREA: 10.5
      ADMIN_LEVEL: 2
      NAME: Name
      NAME_EN: ''
      NAME_DE: Name (de)
  output:
    layer: boundary_labels
    geometry: point
    allow_extra_tags: false
    min_zoom: 5
    tags:
      way_area: 10.5
      admin_level: 2
      name: Name
      name_de: Name (de)

- name: 'boundary_labels z4'
  input:
    source: admin_points
    geometry: point
    tags:
      WAY_AREA: 1e7
      ADMIN_LEVEL: 2
      NAME: name
  output:
    layer: boundary_labels
    geometry: point
    min_zoom: 4
    tags:
      way_area: 1e7
      admin_level: 2

- name: 'boundary_labels z3'
  input:
    source: admin_points
    geometry: point
    tags:
      WAY_AREA: 7e7
      ADMIN_LEVEL: 2
      NAME: name
  output:
    layer: boundary_labels
    geometry: point
    min_zoom: 3
    tags:
      way_area: 7e7
      admin_level: 2

- name: 'boundary_labels z2'
  input:
    source: admin_points
    geometry: point
    tags:
      WAY_AREA: 2e8
      ADMIN_LEVEL: '2'
      NAME: name
  output:
    layer: boundary_labels
    geometry: point
    min_zoom: 2
    tags:
      way_area: 2e8
      admin_level: 2

- name: 'boundary_labels admin_level=4 z3'
  input:
    source: admin_points
    geometry: point
    tags:
      WAY_AREA: 7e7
      ADMIN_LEVEL: 4
      NAME: name
  output:
    layer: boundary_labels
    geometry: point
    min_zoom: 3
    tags:
      way_area: 7e7
      admin_level: 4

- name: 'country boundary'
  input:
    source: osm
    geometry: line
    # TODO from relation
    tags:
      boundary: administrative
      admin_level: '2'
      maritime: yes
  output:
    layer: boundaries
    geometry: line
    min_zoom: 0
    min_size: 0
    tags:
      maritime: true
      admin_level: 2

- name: 'state boundary'
  input:
    source: osm
    geometry: line
    # TODO from relation
    tags:
      boundary: administrative
      admin_level: 4
  output:
    layer: boundaries
    geometry: line
    min_zoom: 7
    min_size: 0
    tags:
      maritime: false
      admin_level: 4

# TODO take min admin level

- name: 'hamlet'
  input:
    source: osm
    geometry: point
    tags:
      place: hamlet
      name: 'Name'
  output:
    layer: place_labels
    geometry: point
    allow_extra_tags: false
    min_zoom: 10
    tags:
      kind: hamlet
      name: 'Name'
      population: 50

- name: 'city with population'
  input:
    source: osm
    geometry: point
    tags:
      place: city
      name: 'Name'
      population: '1300'
  output:
    layer: place_labels
    geometry: point
    allow_extra_tags: false
    min_zoom: 6
    tags:
      kind: city
      name: 'Name'
      population: 1300

- name: 'state capital'
  input:
    source: osm
    geometry: point
    tags:
      place: city
      capital: '4'
      name: 'Name'
  output:
    layer: place_labels
    geometry: point
    allow_extra_tags: false
    min_zoom: 4
    tags:
      kind: state_capital
      name: 'Name'
      population: 100000

- name: 'capital'
  input:
    source: osm
    geometry: point
    tags:
      place: city
      capital: yes
      name: 'Name'
  output:
    layer: place_labels
    geometry: point
    allow_extra_tags: false
    min_zoom: 4
    tags:
      kind: capital
      name: 'Name'
      population: 100000

- name: 'population with comma'
  input:
    source: osm
    geometry: point
    tags:
      place: city
      population: 123,123
      name: 'Name'
  output:
    layer: place_labels
    geometry: point
    tags:
      kind: city
      population: 123123