================================================================================
Simple shape
================================================================================
foo
bar

--------------------------------------------------------------------------------

(source_file
  (shape (identifier))
  (shape (identifier))
)

================================================================================
Complex identifier
================================================================================
 Foo bar 
-Biz-baz-

--------------------------------------------------------------------------------

(source_file
  (shape (identifier))
  (shape (identifier))
)

================================================================================
Inline shapes
================================================================================
foo.baz

--------------------------------------------------------------------------------

(source_file
  (shape
    (identifier)
    (dot)
    (identifier)
  )
)


================================================================================
Many shapes inline
================================================================================
a;b;c

--------------------------------------------------------------------------------

(source_file
  (shape (identifier))
  (shape (identifier))
  (shape (identifier))
)

================================================================================
Aliased shapes
================================================================================
a: Foo Bar
a: Foo Bar; b: Biz Baz

--------------------------------------------------------------------------------

(source_file
  (shape (identifier) (label))
  (shape (identifier) (label))
  (shape (identifier) (label))
)

================================================================================
It should skip white spaces
================================================================================

foo

bar   :  Foo Bar;     baz

--------------------------------------------------------------------------------

(source_file
  (shape (identifier))
  (shape (identifier) (label))
  (shape (identifier))
)