test-a.xml

<?xml version="1.0" encoding="utf-8"?>

<Map srs="+proj=merc +lon_0=0 +lat_ts=0 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m +no_defs" background-color="steelblue">

<Parameters>
  <Parameter name="bounds">-180,-85.0511,180,85.0511</Parameter>
  <Parameter name="center">0,0,2</Parameter>
  <Parameter name="minzoom">0</Parameter>
  <Parameter name="maxzoom">8</Parameter>
  <Parameter name="geocoder_layer">world.NAME</Parameter>
  <Parameter name="geocoder_resolution">0</Parameter>
  <Parameter name="name"><![CDATA[test-a]]></Parameter>
  <Parameter name="json"><![CDATA[{"level1":{"level2":"property"},"minzoom":2}]]></Parameter>
</Parameters>

<Layer name="world" srs="+proj=merc +lon_0=0 +lat_ts=0 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m +no_defs">
    <Datasource>
        <Parameter name="file">data/world_merc.shp</Parameter>
        <Parameter name="type">shape</Parameter>
    </Datasource>
</Layer>

</Map>