nltk.parse.earleychart.IncrementalTopDownChartParser

class documentation

class IncrementalTopDownChartParser(IncrementalChartParser): (source)

Undocumented

Method __init__ Create a new Earley chart parser, that uses grammar to parse texts.

Method	`chart_parse`	Return the final parse `Chart` from which all possible parse trees can be extracted.
Instance Variable	`_axioms`	Undocumented
Instance Variable	`_chart_class`	Undocumented
Instance Variable	`_grammar`	Undocumented
Instance Variable	`_inference_rules`	Undocumented
Instance Variable	`_trace`	Undocumented
Instance Variable	`_trace_chart_width`	Undocumented

Method	`grammar`	No summary
Method	`parse`	When possible this list is sorted from most likely to least likely.
Method	`_trace_new_edges`	Undocumented
Instance Variable	`_strategy`	Undocumented
Instance Variable	`_use_agenda`	Undocumented

Method	`parse_all`	No summary
Method	`parse_one`	No summary
Method	`parse_sents`	Apply `self.parse()` to each element of `sents`. :rtype: iter(iter(Tree))

def __init__(self, grammar, **parser_args): (source) ¶

overrides nltk.parse.earleychart.IncrementalChartParser.__init__

Create a new Earley chart parser, that uses grammar to parse texts.

Parameters
grammar:CFG	The grammar used to parse texts.
trace:int	The level of tracing that should be used when parsing a text. `0` will generate no tracing output; and higher numbers will produce more verbose tracing output.
trace_chart_width:int	The default total width reserved for the chart in trace output. The remainder of each line will be used to display edges.
chart_class	The class that should be used to create the charts used by this parser.
**parser_args	Undocumented