Overpass Turbo: How to EXCLUDE tags that contain a string

Question

Hi,

So you can go : to only include tags that have a certain string: name:foo (only places with foo anywhere in the name will show up), but I'm wondering if you can do the opposite, I want to EXCLUDE tags if they contain a certain word (I want every tag that does NOT contain the word foo in the example above).

I'm sure there must be a way, there's = and !=, so I'm sure they'll be some equivalent for contains, but it certainly isn't !: and I cannot find it in documentation.

Thanks in advance for your help, Steven.

Accepted Answer

I know how to ONLY find churches that have the word Evangelist in the name, but I don't know how to EXCLUDE churches that have the word Evangelist from the results.

Try with the operator "!~" which searches for values not matching a regular expression.

Please note that not having the tag is considered a non match, thus it's shown in the result. If you want to avoid that, just add the filter ["name"].

Example:

[out:json][timeout:25];

  nwr["amenity"="place_of_worship"]["name"]["name"!~"Evangelist"]({{bbox}});

out body;
>;
out skel qt;

Another way to obtain the same result is to use the difference:

[out:json][timeout:25];

(
  nwr["amenity"="place_of_worship"]["name"]({{bbox}});
-
  nwr["amenity"="place_of_worship"]["name"~"Evangelist"]({{bbox}});
  );
out body;
>;
out skel qt;

The former should run faster but I think it depends on the area you are running it in.

Answer 2

Although MarcoR's former example is the preferable solution the 'difference' example, when it's the only option, can be improved slightly by passing the first call to a variable. In this example I display all edits for the last day except my own. (You'll need to add your own username)

   (
    nwr(newer:'{{date:24Hour}}')({{bbox}})->.Data;
    -
    nwr.Data(user:Joe_B);
   );
   out meta geom({{bbox}});

Overpass Turbo: How to EXCLUDE tags that contain a string

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