Filter: support multiple keys with wildcards

doc/Filters.md

@@ -25,7 +25,7 @@ Each filter can define the following values:
 * values: Possible values. Can either be an array, an object or a html string with several `<option>` tags (even for radio and checkbox). See below for more information.
 * valueName: if the values do not have names (resp. an `<option>` without text content), use this twig template to create a each name. Use `{{ value }}` for the current value.
 * query: A twig template which builds a query from the selected value (if the value has not a query defined), e.g. `nwr[amenity={{ value }}]`. If not defined the query will be built from `key` (or the filter ID), `op` and the selected value.
-* key: If not overridden by query, use this key for searching. If not defined, use the filter's ID.
+* key: If not overridden by query, use this key for searching. If not defined, use the filter's ID. Can also be an array with a list of keys. You can use wildcards too, e.g. "name:*" to query all localized name tags.
 * op: operator to use (if not overridden by query), e.g. '=' (default), '!=', '~', '!~', 'has' (query in semicolon-separated lists like `cuisine=kebap;noodles`).
 
 ### Values

src/CategoryOverpassFilter.js

@@ -158,7 +158,19 @@ class CategoryOverpassFilter {
 
       if (Array.isArray(v.key)) {
         v = {
-          "or": v.key.map(key => { return [ { key, value: v.value, op: v.op } ]})
+          "or": v.key.map(
+            key => {
+              let v1 = { key, value: v.value, op: v.op }
+
+              let m = key.match(/^(.*)\*(.*)/)
+              if (m) {
+                v1.key = '^' + m[1] + '.*' + m[2]
+                v1.keyRegexp = true
+              }
+
+              return [ v1 ]
+            }
+          )
         }
       }