Package nltk :: Package parse :: Module earleychart :: Class ScannerRule

type ScannerRule

         object --+                    
                  |                    
   chart.ChartRuleI --+                
                      |                
chart.AbstractChartRule --+            
                          |            
      chart.FundamentalRule --+        
                              |        
chart.SingleEdgeFundamentalRule --+    
                                  |    
            CompleteFundamentalRule --+
                                      |
                                     ScannerRule

Known Subclasses:

FeatureScannerRule

Instance Methods

[hide private]

iter of EdgeI

apply_iter(self, chart, grammar, 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

Inherited from CompleteFundamentalRule (private): _apply_incomplete

Inherited from chart.SingleEdgeFundamentalRule (private): _apply_complete

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

Class Variables

[hide private]

_fundamental_rule = CompleteFundamentalRule()

Inherited from chart.SingleEdgeFundamentalRule: NUM_EDGES

Method Details

[hide private]

apply_iter(self, chart, grammar, 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: chart.ChartRuleI.apply_iter

(inherited documentation)