Safe Haskell | None |
---|---|

Language | Haskell98 |

Enquiry of the graph structure. Note: In this module the term "node" is often used synonymously to "node reference" and "node value". The two can easily distinguished by their type: the former has type `Node`

the latter usually `n`

.

- module Data.View
- module GraphRewriting.Graph.Types
- type WithGraph n = Reader (Graph n)
- readOnly :: MonadReader (Graph n) m => Reader (Graph n) a -> m a
- existNode :: MonadReader (Graph n) m => Node -> m Bool
- readNode :: MonadReader (Graph n) m => Node -> m n
- inspectNode :: (View v n, MonadReader (Graph n) m) => Node -> m v
- examineNode :: (View v n, MonadReader (Graph n) m) => (v -> a) -> Node -> m a
- readNodeList :: MonadReader (Graph n) m => m [Node]
- readEdgeList :: MonadReader (Graph n) m => m [Edge]
- attachedEdges :: (View [Port] n, MonadReader (Graph n) m) => Node -> m [Edge]
- attachedNodes :: MonadReader (Graph n) m => Edge -> m [Node]
- edgeCardinality :: (View [Port] n, MonadReader (Graph n) m) => Edge -> m Int
- neighbours :: (View [Port] n, MonadReader (Graph n) m) => Node -> m [Node]
- relatives :: (View [Port] n, MonadReader (Graph n) m) => Node -> m [Node]
- adverseNodes :: MonadReader (Graph n) m => Node -> Port -> m [Node]
- connected :: (View [Port] n, MonadReader (Graph n) m) => Node -> Node -> m Bool
- dangling :: (View [Port] n, MonadReader (Graph n) m) => Port -> m Bool
- withNodes :: MonadReader (Graph n) m => (Node -> m a) -> m [a]

# Documentation

module Data.View

module GraphRewriting.Graph.Types

readOnly :: MonadReader (Graph n) m => Reader (Graph n) a -> m a Source #

This forces the use of the `Reader`

monad. Wrapping a sequence of monadic read-only operations (such as those defined below) into a read-only block can save much overhead e.g. in the state monad.

inspectNode :: (View v n, MonadReader (Graph n) m) => Node -> m v Source #

a wrapper to `inspect`

the given node

examineNode :: (View v n, MonadReader (Graph n) m) => (v -> a) -> Node -> m a Source #

a wrapper to `examine`

the given node

readNodeList :: MonadReader (Graph n) m => m [Node] Source #

all of the graph's nodes

readEdgeList :: MonadReader (Graph n) m => m [Edge] Source #

all of the graph's edges

attachedEdges :: (View [Port] n, MonadReader (Graph n) m) => Node -> m [Edge] Source #

edges attached to the given node

attachedNodes :: MonadReader (Graph n) m => Edge -> m [Node] Source #

non-empty set of nodes attached to the given edge

edgeCardinality :: (View [Port] n, MonadReader (Graph n) m) => Edge -> m Int Source #

amount of ports the given hyperedge is connected to

neighbours :: (View [Port] n, MonadReader (Graph n) m) => Node -> m [Node] Source #

list of nodes that are connected to the given node, not including the node itself

relatives :: (View [Port] n, MonadReader (Graph n) m) => Node -> m [Node] Source #

list of nodes that are connected to the given node, including the node itself

adverseNodes :: MonadReader (Graph n) m => Node -> Port -> m [Node] Source #

nodes connected to given port of the specified node, not including the node itself

connected :: (View [Port] n, MonadReader (Graph n) m) => Node -> Node -> m Bool Source #

whether two nodes are connected