Bukkit

Regions:
  #Region name
  Derp:
    #Location of corner one of the region
    P1: world 1 10 20
    #Location of corner two of the region
    P2: world 20 10 1
    #Block IDs which are allowed / blocked on place
    #Any blocks in allowed override what are in blocked
    #If allowed is blank, only things in blocked is blocked
    #If blocked is blank, only things in allowed are allowed
    #If allowed and blocked are blank, nothing is allowed
    Place:
      Allowed: []
      Blocked: []
    #Block IDs which are allowed / blocked on break
    #Any blocks in allowed override what are in blocked
    #If allowed is blank, only things in blocked is blocked
    #If blocked is blank, only things in allowed are allowed
    #If allowed and blocked are blank, nothing is allowed
    Break:
      Allowed: []
      Blocked: []