WeekDaze.Model.TimetableAxisTraversal

AUTHOR

Dr. Alistair Ward

DESCRIPTION

Defines a specific axis (& the sense in which that axis is traversed), in the three-dimensional coordinate-system used to describe a timetable.

Types

Type-synonyms

type Sense = Bool

Defines the direction of travel along an axis; True being interpreted as positive & False negative.

Data-types

data AxisTraversal

Defines an axis & the direction of travel along it.

Constructors

MkAxisTraversal

Fields

• getMaybeSense :: Maybe Sense

  Optionally defines the direction of travel along the axis.

• getAxis :: Axis

  Defines which of the axes to traverse.

Instances

Eq AxisTraversal

Defined in WeekDaze.Model.TimetableAxisTraversal

Methods

(==) :: AxisTraversal -> AxisTraversal -> Bool

(/=) :: AxisTraversal -> AxisTraversal -> Bool

Read AxisTraversal

Defined in WeekDaze.Model.TimetableAxisTraversal

Methods

readsPrec :: Int -> ReadS AxisTraversal

readList :: ReadS [AxisTraversal]

readPrec :: ReadPrec AxisTraversal

readListPrec :: ReadPrec [AxisTraversal]

Show AxisTraversal

Defined in WeekDaze.Model.TimetableAxisTraversal

Methods

showsPrec :: Int -> AxisTraversal -> ShowS

show :: AxisTraversal -> String

showList :: [AxisTraversal] -> ShowS

NFData AxisTraversal

Defined in WeekDaze.Model.TimetableAxisTraversal

Methods

rnf :: AxisTraversal -> ()

XmlPickler AxisTraversal

Defined in WeekDaze.Model.TimetableAxisTraversal

Methods

xpickle :: PU AxisTraversal

Constants

senseTag :: String

Used to qualify SQL & XML.

Functions

maybeSenseToList :: Maybe Sense -> [Sense]

Interpret a sense-specification.

invertSense :: AxisTraversal -> AxisTraversal

Construct a traversal which goes the other way along the same axis.

Predicates

hasWildSense :: AxisTraversal -> Bool

True if the sense is ill-defined.