sample carto file for TileMill with labels and conditional styling based on string-matching

carto-example.mss

Map { background-color: #b8dee6; }

#countries { ::polygon { polygon-fill: #fff; } }

#boladm {
  ::polygon { 
    polygon-fill: #76b8d5; 
  }
  ::line {
    line-color: #3f3f3f;
    line-width: 0.5;
  }
}

#boladm[NAME_1 = "Cochabamba"] {
  ::polygon { 
    polygon-fill: #73FF9D; 
  }
  ::line {
    line-color: #3f3f3f;
    line-width: 0.5;
  }
  ::labels {
    text-name: "[NAME_3]";
    text-face-name: "Arial Narrow";
    text-size: 12;
    text-dy: 1;
  }
}

#boladm[NAME_1 = "Cochabamba"][NAME_3 = "Punata"] {
  ::polygon { 
    polygon-fill: red; 
  }
  ::line {
    line-color: #3f3f3f;
    line-width: 0.5;
  }
}

#boladm[NAME_1 = "Cochabamba"][NAME_3 = "Tiraque"] {
  ::polygon { 
    polygon-fill: green; 
  }
  ::line {
    line-color: #3f3f3f;
    line-width: 0.5;
  }
}