[openstreetmap/openstreetmap-website] Added color preview box in tag browser sidebar (#1779)

[Andy Allan]

gravitystorm commented on this pull request.



> @@ -188,4 +190,16 @@ def telephone_link(_key, value)
 
     "tel:#{value_no_whitespace}"
   end
+
+  def colour_preview(key, value)
+    return nil unless (key =~ /^(|building:|ref:|roof:)colour$/ || key =~ /^(int_)?ref:colour(_(bg|tx))?$/) && !value.nil?

I'm very much opposed to anything that shows tagging mistakes as if they are correctly tagged. It's part of the guidelines established for the openstreetmap-carto project, and I'd like to apply similar guidelines to the browse pages:

"It's an important feedback mechanism for mappers to validate their edits and helps to prevent unfavorable fragmentation of tag use."

So no "color" tags and nothing that would show e.g. "buidling:colour" (note misspelling).

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