railway-infrastructure: improve readability

railway-infrastructure.json

@@ -46,7 +46,23 @@
         ],
         "styles": "{% if tags.railway == 'narrow_gauge' %}default,casing{% else %}default{% endif %}",
         "style": {
-            "weight": "{% if tags.service == 'yard' or tags.service == 'siding' or tags.service == 'spur' or tags.service == 'crossover' %}1{% else %}{% if tags.railway == 'rail' %}{% if tags.usage == 'main' or tags.usage == 'branch' %}3{% else %}2{% endif %}{% elseif tags.railway == 'platform' %}1{% else %}2{% endif %}{% endif %}",
+            "weight": [
+                "{% if tags.service == 'yard' or tags.service == 'siding' or tags.service == 'spur' or tags.service == 'crossover' %}",
+                "1",
+                "{% else %}",
+                "  {% if tags.railway == 'rail' %}",
+                "    {% if tags.usage == 'main' or tags.usage == 'branch' %}",
+                "    3",
+                "    {% else %}",
+                "    2",
+                "    {% endif %}",
+                "  {% elseif tags.railway == 'platform' %}",
+                "  1",
+                "  {% else %}",
+                "  2",
+                "  {% endif %}",
+                "{% endif %}"
+            ],
             "color": "{% if tags.railway == 'rail' or tags.railway == 'narrow_gauge' or tags.railway == 'disused' %}{% if tags.usage == 'main' %}#ff8100{% elseif tags.usage == 'branch' %}#daca00{% else %}#000000{% endif %}{% elseif tags.railway == 'subway' %}#0000ff{% elseif tags.railway == 'tram' %}#ff00ff{% elseif tags.railway == 'light_rail' %}#00BD14{% elseif tags.railway == 'platform' %}#3f3f3f{% else %}#000000{% endif %}",
             "opacity": "1",
             "dashArray": "{% if tags.railway == 'rail' %}{% elseif tags.railway == 'disused' %}1,5{% elseif tags.railway == 'abandoned' %}1,7{% endif %}",