protected static void toPrecedenceFreeEPL(String functionName,List<Expression> children,StringWriter writer){
  writer.write(functionName);
  writer.write("(");
  toPrecedenceFreeEPL(children,writer);
  writer.write(')');
}

protected static void toPrecedenceFreeEPL ( String functionName , List < Expression > children , StringWriter writer ) { writer . write ( functionName ) ; writer . write ( "(" ) ; toPrecedenceFreeEPL ( children , writer ) ; writer . write ( ')' ) ; }
renders child expression of a function in a comma - separated list .
