//Converts a tree to a nested list.

//eval(translateCode(readFile('SBVR'))) 

ometa Prettify {
//  elem = [{this.d++} (string|elem|number)*:e {s=this.s(this.d--)}] -> ('['+e.join(',\n'+s+'  ')+'\n'+s+']')
  elem = [{this.d++} (string|elem|number)*:e {s=this.s(this.d--)}] -> ('['+e.join(',\n'+s)+']')
}

Prettify.d = 1
Prettify.s = function(d){a=' ';for(var i=0;i<d;i++){a+='  '};return a}

//Prettify.match(tree,'elem')