Package nltk :: Module grammar :: Class DependencyGrammar

type DependencyGrammar

object --+
         |
        DependencyGrammar

A dependency grammar. A DependencyGrammar consists of a set of productions. Each production specifies a head/modifier relationship between a pair of words.

Instance Methods

[hide private]

__init__(self, productions)
Create a new dependency grammar, from the set of Productions. source code

boolean.

contains(self, head, mod)
Returns: true if this DependencyGrammar contains a DependencyProduction mapping 'head' to 'mod'. source code

boolean.

__contains__(self, head, mod)
Returns: true if this DependencyGrammar contains a DependencyProduction mapping 'head' to 'mod'. source code

string

__str__(self)
Returns: A verbose string representation of the DependencyGrammar source code

__repr__(self)
Returns: A concise string representation of the DependencyGrammar source code

Method Details

[hide private]

init(self, productions)
(Constructor)

source code

Create a new dependency grammar, from the set of Productions.

Parameters:

productions (list of Production) - The list of productions that defines the grammar

Overrides: object.__init__

contains(self, head, mod)

source code

Parameters:

head (string.) - A head word.
mod (string.) - A mod word, to test as a modifier of 'head'.

Returns: boolean.

true if this DependencyGrammar contains a DependencyProduction mapping 'head' to 'mod'.

contains(self, head, mod)
(In operator)

source code

Parameters:

head (string.) - A head word.
mod (string.) - A mod word, to test as a modifier of 'head'.

Returns: boolean.

true if this DependencyGrammar contains a DependencyProduction mapping 'head' to 'mod'.

str(self)
(Informal representation operator)

source code

Returns: string: A verbose string representation of the DependencyGrammar
Overrides: object.__str__

repr(self)
(Representation operator)

source code

Returns:: A concise string representation of the DependencyGrammar
Overrides: object.__repr__

type DependencyGrammar

__init__(self, productions) (Constructor)

contains(self, head, mod)

__contains__(self, head, mod) (In operator)

__str__(self) (Informal representation operator)

__repr__(self) (Representation operator)

init(self, productions)
(Constructor)

contains(self, head, mod)
(In operator)

str(self)
(Informal representation operator)

repr(self)
(Representation operator)