source: josm/trunk/resources/data/validator/unnecessary.mapcss

*[access][highway=proposed],
*[bridge=no],
*[building=no],
*[elevation="0"],
*[layer="0"] {
  /* see #9365 - Useless tag layer=0 */
  throwWarning: tr("{0} is unnecessary", "{0.tag}");
  group: tr("unnecessary tag");
  fixRemove: "{0.key}";
  assertMatch: "way layer=0";
  assertMatch: "way bridge=no";
  assertMatch: "way highway=proposed access=no";
}

/* #19996 */
*[motor_vehicle?][!vehicle][!access][bicycle_road!=yes][highway =~ /^(motorway|motorway_link|trunk|trunk_link|primary|primary_link|secondary|secondary_link|tertiary|tertiary_link)$/] {
  throwOther: tr("{0} is optional on {1}", "{0.tag}", "{4.tag}");
  assertMatch: "way highway=motorway motor_vehicle=yes";
  assertNoMatch: "way highway=motorway access=no motor_vehicle=yes";
}

/* #22338  */
way:closed[boundary][area?],
way:closed[indoor  ][area?][!highway][indoor!=no],
way:closed[office  ][area?],
way:closed[place   ][area?][!highway],
way:closed[amenity ][area?][!highway],
way:closed[building][area?],
way:closed[landuse ][area?][!highway],
way:closed[leisure ][area?][!highway][leisure!=track][leisure!=slipway],
way:closed[natural ][area?],
way:closed[shop    ][area?] {
  throwWarning: tr("{0} is unnecessary for {1}", "{2.tag}", "{1.key}");
  group: tr("unnecessary tag");
  fixRemove: "{2.key}";
}

/* #14256, #15664, #20681 */
way:closed[highway=rest_area][area?],
way:closed[highway=services][area?],
way:closed[aeroway=aerodrome][area?],
way:closed[waterway=riverbank][area?],
way:closed[aeroway=helipad][area?] {
  throwWarning: tr("{0} is unnecessary for {1}", "{2.tag}", "{1.tag}");
  group: tr("unnecessary tag");
  fixRemove: "{2.key}";
}

*[gnis:Class="Populated Place"][place=city],
*[gnis:Class="Populated Place"][place=town],
*[gnis:Class="Populated Place"][place=village],
*[gnis:Class="Populated Place"][place=hamlet],
*[gnis:Class=Summit][natural=peak] {
  throwWarning: tr("{0} is unnecessary for {1}", "{0.tag}", "{1.tag}");
  group: tr("unnecessary tag");
  fixRemove: "{0.key}";
  assertMatch: "node gnis:Class=\"Populated Place\" place=village";
  assertNoMatch: "node gnis:Class=\"Populated Place\" place=locality";
}

*[emergency=permissive] {
  /* see #9458 - emergency=permissive makes no sense */
  throwWarning: tr("{0} makes no sense", "{0.tag}");
  fixAdd: "emergency=yes";
  assertMatch: "way emergency=permissive";
  assertNoMatch: "way emergency=designated";
}

/* see ticket #7639 -- Warn when a node has the same tags as its parent way. */
way >:sameTags node:tagged {
  throwWarning: tr("Nodes duplicating parent way tags");
}

/* #15477 */
*[payment:cash][payment:coins][payment:notes] {
  throwWarning: tr("{0} together with {1} and {2}. Remove {0}.", "{0.key}", "{1.key}", "{2.key}");
  group: tr("unnecessary tag");
  fixRemove: "payment:cash";
}

/* #15774 */
node[emergency=fire_hydrant][fire_hydrant:count=1] {
  throwWarning: tr("{0} is unnecessary for {1}", "{1.tag}", "{0.tag}");
  group: tr("unnecessary tag");
  fixRemove: "{1.key}";
}

/* #17100, #17471, #17629, #17633, #19274, #19395, #19409 */
*[name][name=~/^(?i)(library|biblioteca|biblioteka|bibliothek|bibliotheek)$/][amenity=library],
*[name][name=~/^(?i)(parc|park)$/][leisure=park],
*[name][name=~/^(?i)(pond)$/][water=pond],
*[name][name=~/^(?i)(church|église|biserica)$/][amenity=place_of_worship][religion=christian],
*[name][name=~/^(?i)(mosque|cami|masjid|مسجد)$/][amenity=place_of_worship][religion=muslim],
*[name][name=~/^(?i)(parking|parkplatz)$/][amenity=parking],
*[name][name=~/^(?i)(post office)$/][amenity=post_office],
*[name][name=~/^(?i)(restaurant)$/][amenity=restaurant],
*[name][name=~/^(?i)(toilets?)$/][amenity=toilets],
*[name][name=~/^(?i)(playground|spielplatz)$/][leisure=playground],
*[name][name=~/^(?i)(shop|boutique)$/][shop][shop!=no],
*[name][name=~/^(?i)(building|bangunan)$/][building][building!=no],
*[name][name=~/^(?i)(house|maison|rumah|vivienda)$/][building=house],
*[name][name=~/^(?i)(casa)$/][building=house][outside("FR")], /* spanish for house but it is a brand name in France */
*[name][name=~/^(?i)(kiosk)$/][shop=kiosk][outside("NL")], /* it is a brand name in the Netherlands */
*[name][name=~/^(?i)(path)$/][highway=path],
*[name][name=~/^(?i)(jalan)$/][highway],
*[name][name=~/^(?i)(silo)$/][man_made=silo],
*[name][name=~/^(?i)(cemetery|cementerio|cimetière|cmentarz|friedhof)$/][amenity=grave_yard],
*[name][name=~/^(?i)(cemetery|cementerio|cimetière|cmentarz|friedhof)$/][landuse=cemetery],
*[name][name=~/^(?i)(monument aux morts|war memorial)$/][historic=memorial][memorial=war_memorial],
*[name][name=~/^(?i)(school|école|Школа)$/][amenity=school],
*[name][name=~/^(?i)(école élémentaire)$/][amenity=school]["school:FR"="élémentaire"],
*[name][name=~/^(?i)(école maternelle)$/][amenity=school]["school:FR"="maternelle"],
*[name][name=~/^(?i)(école primaire)$/][amenity=school]["school:FR"="primaire"],
*[name][name=~/^(?i)(collège)$/][amenity=school]["school:FR"="collège"],
*[name][name=~/^(?i)(lycée)$/][amenity=school]["school:FR"="lycée"],
*[name][name=~/^(?i)(Аптека|farmacia|pharmacy|pharmacie)$/][amenity=pharmacy],
*[name][name=~/^(?i)(hydrant)$/][emergency=fire_hydrant],
*[name][name=~/^(?i)(АГЗС|АЗС)$/][amenity=fuel] {
  throwWarning: tr("{0}", "{0.tag}");
  group: tr("descriptive name");
  fixRemove: "name";
  assertMatch: "node name=parking amenity=parking";
  assertMatch: "node name=Parking amenity=parking";
  assertNoMatch: "node name=Parking_with_suffix amenity=parking";
  assertNoMatch: "node name=Megaparking amenity=parking";
  assertMatch: "relation name=parking amenity=parking type=multipolygon";
  assertMatch: "relation name=Parking amenity=parking type=multipolygon";
  assertNoMatch: "way name=parking";
  assertMatch: "relation name=PLAYGROUND leisure=playground type=multipolygon";
  assertMatch: "node name=PLaYGrOUNd leisure=playground";
  assertMatch: "node name=shop shop=whatever";
  assertNoMatch: "node name=shop shop=no";
  assertNoMatch: "way name=shop leisure=playground";
  assertMatch: "way name=building building=yes";
  assertMatch: "way name=building building=house";
  assertMatch: "way name=Rumah building=house";
  assertNoMatch: "way name=Rumah building=yes";
  assertMatch: "way name=house building=house";
  assertNoMatch: "way name=house building=yes";
  assertMatch: "way name=kiosk building=yes shop=kiosk";
  assertNoMatch: "way name=kiosk building=yes";
  assertMatch: "way name=silo man_made=silo";
  assertMatch: "way name=Silo man_made=silo building=silo";
  assertNoMatch: "way name=Silo building=silo";
  assertMatch: "way name=cemetery amenity=grave_yard";
  assertMatch: "way name=Cmentarz amenity=grave_yard";
  assertNoMatch: "way name=kiosk amenity=grave_yard";
}
  /* the following without fixRemove to avoid information loss, should be checked manually */
*[name][name=~/^(?i)(chapel|chapelle|kapelle)$/][tag("building")=="chapel"||tag("amenity")=="place_of_worship"], /* check if amenity=place_of_worship and/or building=chapel applies */
*[name][name=~/^(?i)(silo)$/][man_made!=silo], /* check if man_made=silo and/or building=silo applies */
*[name][name=~/^(?i)(school|école|Школа)$/][amenity!=school], /* check if amenity=school and/or building=school applies applies */
*[name][name=~/^(?i)(house|rumah|vivienda)$/][building][building!=house][building!=no], /* check if building=house applies */
*[name][name=~/^(?i)(casa)$/][building][building!=house][building!=no][outside("FR")] { /* check if building=house applies */
  throwWarning: tr("{0}", "{0.tag}");
  group: tr("descriptive name");
  assertMatch: "way name=Silo building=silo";
  assertNoMatch: "way name=building building=yes";
  assertNoMatch: "way name=building building=house";
  assertNoMatch: "way name=Rumah building=house";
  assertMatch: "way name=Rumah building=yes";
  assertNoMatch: "way name=house building=house";
  assertMatch: "way name=house building=yes";
}

/* #2760 */
*[/^gpx:/],
*[/^gpxx:/],
*[/^gpxd:/] {
  throwWarning: tr("{0} should not be uploaded", "{0.key}");
  group: tr("unnecessary tag");
  fixRemove: "{0.key}";
  assertMatch: "node gpx:time=2018-01-01T12:00:00Z";
  assertMatch: "node gpxd:color=#FF0000";
  assertNoMatch: "node source=gpx:foo";
}