gastro: show dietary options

gastro.json

@@ -30,6 +30,18 @@
             "   <span class='key'>{{ keyTrans('cuisine') }}:</span>",
             "   <span class='value'>{{ tagTransList('cuisine', tags.cuisine)|default(trans('unknown')) }}</span>",
             "  </li>",
+            "  {% set diets = tagsPrefix(tags, 'diet:') %}",
+            "  {% if diets %}",
+            "    <li class='hasSymbol'>",
+            "     <i class=\"fa fa-cutlery\" aria-hidden=\"true\"></i>",
+            "     <span class='key'>{{ keyTrans('diet') }}:</span>",
+            "     <span class='value'>",
+            "     {% for kv, k in diets %}",
+            "       {% set v = tags[k] %}",
+            "       <span title='{{ k ~ '=' ~ v }}' style='white-space: nowrap; margin-right: 0.5em;'>{% if v == 'no' %}✘ {% elseif v == 'only' %}❗{% else %}✔{% endif %}{{ keyTrans(k) }}</span>",
+            "     {% endfor %}",
+            "    </span></li>",
+            "  {% endif %}",
             "</ul>"
         ],
         "markerSign": "{% if tags.amenity=='bar' %}&#127864;{% elseif tags.amenity=='biergarten'%}&#127867;{% elseif tags.amenity=='cafe' %}&#9749;{% elseif tags.amenity=='fast_food' %}&#127828;{% elseif tags.amenity=='ice_cream' %}&#127848;{% elseif tags.amenity=='pub' %}&#127866;{% else %}&#127860;{% endif %}"