<data> -> empty | <object><data> | <field><data>

<object> -> <identifier> : <data> ;

<field> -> <identifier> = <value>

<identifier> -> [a-zA-Z][a-zA-Z0-9_]*

<value> -> null | <int> | <float> | <bool> | <string> | <array> | <int_scalar_array> | <float_scalar_array> | <data_array>

<int> -> [+-]?[0-9]+

<float> -> [+-]?[0-9][0-9]*\.[0-9][0-9]*

<bool> -> true | false

<string> -> '.*'

<array> -> [ <value_list> ]

<value_list> -> empty | <value> <value_list>

<int_scalar_array> -> I[ <int_list> ]

<int_list> -> empty | <int> <int_list>

<float_scalar_array> -> F[ <float_list> ]

<float_list> -> empty | <float> <float_list>

<data_array> -> D[ <data_list> ]

<data_list> -> empty : <data> ; <data_list>