Package nltk :: Package parse :: Module chart :: Class SingleEdgeFundamentalRule

Class SingleEdgeFundamentalRule

       object --+    
                |    
AbstractChartRule --+
                    |
                   SingleEdgeFundamentalRule

Known Subclasses:

draw.chart.FundamentalEdgeRule

A rule that joins a given edge with adjacent edges in the chart, to form combined edges. In particular, this rule specifies that either of the edges:

[A→α*Bβ][i:j]
[B→γ*][j:k]

licenses the edge:

[A→αB*β][i:j]

if the other edge is already in the chart.

Note: This is basically FundamentalRule, with one edge is left unspecified.

Instance Methods

[hide private]

apply_iter(self, chart, grammar, edge1)

source code

__str__(self)
str(x)

source code

Inherited from AbstractChartRule: apply, apply_everywhere, apply_everywhere_iter

Inherited from object: __delattr__, __getattribute__, __hash__, __init__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__

Class Variables

[hide private]

NUM_EDGES = 1

_fundamental_rule = FundamentalRule()

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

apply_iter(self, chart, grammar, edge1)

source code

Overrides: AbstractChartRule.apply_iter

str(self)
(Informal representation operator)

source code

str(x)

Overrides: AbstractChartRule.__str__

Class SingleEdgeFundamentalRule

apply_iter(self, chart, grammar, edge1)

__str__(self) (Informal representation operator)

str(self)
(Informal representation operator)