nltk.chunk.regexp.SplitRule

class documentation

class SplitRule(RegexpChunkRule): (source)

Constructor: SplitRule(left_tag_pattern, right_tag_pattern, descr)

A rule specifying how to split chunks in a ChunkString, using two matching tag patterns: a left pattern, and a right pattern. When applied to a ChunkString, it will find any chunk that matches the left pattern followed by the right pattern. It will then split the chunk into two new chunks, at the point between the two pattern matches.

Method	`__init__`	Construct a new `SplitRule`.
Method	`__repr__`	Return a string representation of this rule. It has the form:
Instance Variable	`_left_tag_pattern`	Undocumented
Instance Variable	`_right_tag_pattern`	Undocumented

Inherited from RegexpChunkRule:

Static Method	`fromstring`	Create a RegexpChunkRule from a string description. Currently, the following formats are supported:
Method	`apply`	Apply this rule to the given `ChunkString`. See the class reference documentation for a description of what it means to apply a rule.
Method	`descr`	Return a short description of the purpose and/or effect of this rule.
Instance Variable	`_descr`	Undocumented
Instance Variable	`_regexp`	Undocumented
Instance Variable	`_repl`	Undocumented

def __init__(self, left_tag_pattern, right_tag_pattern, descr): (source) ¶

overrides nltk.chunk.regexp.RegexpChunkRule.__init__

Construct a new SplitRule.

Parameters
left_tag_pattern:str	This rule's left tag pattern. When applied to a `ChunkString`, this rule will find any chunk containing a substring that matches this pattern followed by `right_tag_pattern`. It will then split the chunk into two new chunks at the point between these two matching patterns.
right_tag_pattern:str	This rule's right tag pattern. When applied to a `ChunkString`, this rule will find any chunk containing a substring that matches `left_tag_pattern` followed by this pattern. It will then split the chunk into two new chunks at the point between these two matching patterns.
descr:str	A short description of the purpose and/or effect of this rule.

def __repr__(self): (source) ¶

overrides nltk.chunk.regexp.RegexpChunkRule.__repr__

Return a string representation of this rule. It has the form:
<SplitRule: '<NN>', '<DT>'>
Note that this representation does not include the description string; that string can be accessed separately with the descr() method.

Returns
str	Undocumented

_left_tag_pattern = (source) ¶

Undocumented

_right_tag_pattern = (source) ¶

Undocumented