Bio.Phylogeny.Internal.Attributes

data Attribute

An Attribute describes some information about a node in the graph. This type represents the structure for storing attributes, not what attributes can be stored.

Constructors

• Numeric Number
• Text String
• Bool Boolean
• List (Array Attribute)
• Mapping (Map String Attribute)

Instances

• Eq Attribute
• Show Attribute

attributeToString :: Attribute -> Maybe String

Convert a Text attribute to a string, otherwise Nothing

> attributeToString (Text "hello")
Just "hello"

> attributeToString (Bool true)
Nothing

attributeToBool :: Attribute -> Maybe Boolean

Convert a Text attribute to a string, otherwise Nothing

> attributeToBool (Text "hello")
Nothing

> attributeToBool (Bool true)
Just true

parseAttribute :: String -> Attribute

Convert an arbitrary string into an Attribute