================================================================================
Root attribute
================================================================================
direction: value

shape: oval
label: ten
constraint: utehu
icon: huell
opacity: 1
fill: red
stroke: red
stroke-width: 5
stroke-dash: 4
border-radius: 1
font-color: red
shadow: true
multiple: true
animated: true
link: https://to
near: abc

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

(source_file
  (attribute (attr_key) (attr_value))

  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
  (attribute (attr_key (reserved)) (attr_value))
)

================================================================================
Style attribute
================================================================================
foo.style.opacity: 5
foo.style.fill: red
foo.style.stroke: red
foo.style.stroke-width: 5
foo.style.stroke-dash: 4
foo.style.border-radius: 1
foo.style.font-color: red
foo.style.shadow: true
foo.style.multiple: true
foo.style.animated: true
foo.style.link: https://to

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

(source_file
  (shape (shape_key) (dot) (attribute (attr_key) (dot) (attribute (attr_key) (attr_value))))
  (shape (shape_key) (dot) (attribute (attr_key) (dot) (attribute (attr_key) (attr_value))))
  (shape (shape_key) (dot) (attribute (attr_key) (dot) (attribute (attr_key) (attr_value))))
  (shape (shape_key) (dot) (attribute (attr_key) (dot) (attribute (attr_key) (attr_value))))
  (shape (shape_key) (dot) (attribute (attr_key) (dot) (attribute (attr_key) (attr_value))))
  (shape (shape_key) (dot) (attribute (attr_key) (dot) (attribute (attr_key) (attr_value))))
  (shape (shape_key) (dot) (attribute (attr_key) (dot) (attribute (attr_key) (attr_value))))
  (shape (shape_key) (dot) (attribute (attr_key) (dot) (attribute (attr_key) (attr_value))))
  (shape (shape_key) (dot) (attribute (attr_key) (dot) (attribute (attr_key) (attr_value))))
  (shape (shape_key) (dot) (attribute (attr_key) (dot) (attribute (attr_key) (attr_value))))
  (shape (shape_key) (dot) (attribute (attr_key) (dot) (attribute (attr_key) (attr_value))))
)

================================================================================
Block style attributes
================================================================================
foo.style: {
  opacity: 5
  fill: red
  stroke: red
  stroke-width: 5
  stroke-dash: 4
  border-radius: 1
  font-color: red
  shadow: true
  multiple: true
  animated: true
  link: https://to
}

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

(source_file
  (shape
    (shape_key) (dot)
    (attribute
      (attr_key)
      (block
        (attribute (attr_key) (attr_value))
        (attribute (attr_key) (attr_value))
        (attribute (attr_key) (attr_value))
        (attribute (attr_key) (attr_value))
        (attribute (attr_key) (attr_value))
        (attribute (attr_key) (attr_value))
        (attribute (attr_key) (attr_value))
        (attribute (attr_key) (attr_value))
        (attribute (attr_key) (attr_value))
        (attribute (attr_key) (attr_value))
        (attribute (attr_key) (attr_value))
      )
    )
  )
)