Package nltk :: Package ccg :: Module chart :: Class BinaryCombinatorRule

type BinaryCombinatorRule

               object --+        
                        |        
   parse.chart.ChartRuleI --+    
                            |    
parse.chart.AbstractChartRule --+
                                |
                               BinaryCombinatorRule

Class implementing application of a binary combinator to a chart. Takes the directed combinator to apply.

Instance Methods

[hide private]

__init__(self, combinator)

source code

iter of EdgeI

apply_iter(self, chart, grammar, left_edge, right_edge)
Returns: A generator that will add edges licensed by this rule and the given edges to the chart, one at a time.

source code

__str__(self)

source code

Inherited from parse.chart.AbstractChartRule: apply, apply_everywhere, apply_everywhere_iter

Class Variables

[hide private]

NUMEDGES = 2

Inherited from parse.chart.ChartRuleI: NUM_EDGES

Method Details

[hide private]

init(self, combinator)
(Constructor)

source code

Overrides: object.__init__: (inherited documentation)

apply_iter(self, chart, grammar, left_edge, right_edge)

source code

Parameters:

edges - A set of existing edges. The number of edges that should be passed to apply is specified by the NUM_EDGES class variable.

Returns: iter of EdgeI

A generator that will add edges licensed by this rule and the given edges to the chart, one at a time. Each time the generator is resumed, it will either add a new edge and yield that edge; or return.

Overrides: parse.chart.ChartRuleI.apply_iter

(inherited documentation)

str(self)
(Informal representation operator)

source code

Overrides: parse.chart.AbstractChartRule.__str__

type BinaryCombinatorRule

__init__(self, combinator) (Constructor)

apply_iter(self, chart, grammar, left_edge, right_edge)

__str__(self) (Informal representation operator)

init(self, combinator)
(Constructor)

str(self)
(Informal representation operator)