---input---
{ x = 1; y = 2; }

{ foo.bar = 1; }

rec { x = "foo"; y = x + "bar"; }

[ "foo" "bar" "baz" ]

[ 1 2 3 ]

[ (f 1) { a = 1; b = 2; } [ "c" ] ]

---tokens---
'{'           Punctuation
' '           Text
'x'           Literal.String.Symbol
' '           Text
'='           Operator
' '           Text
'1'           Literal.Number.Integer
';'           Punctuation
' '           Text
'y'           Literal.String.Symbol
' '           Text
'='           Operator
' '           Text
'2'           Literal.Number.Integer
';'           Punctuation
' '           Text
'}'           Punctuation
'\n\n'        Text

'{'           Punctuation
' '           Text
'foo'         Text
'.'           Operator
'bar'         Literal.String.Symbol
' '           Text
'='           Operator
' '           Text
'1'           Literal.Number.Integer
';'           Punctuation
' '           Text
'}'           Punctuation
'\n\n'        Text

'rec'         Keyword
' '           Text
'{'           Punctuation
' '           Text
'x'           Literal.String.Symbol
' '           Text
'='           Operator
' '           Text
'"'           Literal.String.Double
'foo'         Literal.String.Double
'"'           Literal.String.Double
';'           Punctuation
' '           Text
'y'           Literal.String.Symbol
' '           Text
'='           Operator
' '           Text
'x'           Text
' '           Text
'+'           Operator
' '           Text
'"'           Literal.String.Double
'bar'         Literal.String.Double
'"'           Literal.String.Double
';'           Punctuation
' '           Text
'}'           Punctuation
'\n\n'        Text

'['           Punctuation
' '           Text
'"'           Literal.String.Double
'foo'         Literal.String.Double
'"'           Literal.String.Double
' '           Text
'"'           Literal.String.Double
'bar'         Literal.String.Double
'"'           Literal.String.Double
' '           Text
'"'           Literal.String.Double
'baz'         Literal.String.Double
'"'           Literal.String.Double
' '           Text
']'           Punctuation
'\n\n'        Text

'['           Punctuation
' '           Text
'1'           Literal.Number.Integer
' '           Text
'2'           Literal.Number.Integer
' '           Text
'3'           Literal.Number.Integer
' '           Text
']'           Punctuation
'\n\n'        Text

'['           Punctuation
' '           Text
'('           Punctuation
'f'           Text
' '           Text
'1'           Literal.Number.Integer
')'           Punctuation
' '           Text
'{'           Punctuation
' '           Text
'a'           Literal.String.Symbol
' '           Text
'='           Operator
' '           Text
'1'           Literal.Number.Integer
';'           Punctuation
' '           Text
'b'           Literal.String.Symbol
' '           Text
'='           Operator
' '           Text
'2'           Literal.Number.Integer
';'           Punctuation
' '           Text
'}'           Punctuation
' '           Text
'['           Punctuation
' '           Text
'"'           Literal.String.Double
'c'           Literal.String.Double
'"'           Literal.String.Double
' '           Text
']'           Punctuation
' '           Text
']'           Punctuation
'\n'          Text