Package nltk :: Package ccg :: Module api :: Class CCGVar

type CCGVar

         object --+    
                  |    
AbstractCCGCategory --+
                      |
                     CCGVar

Class representing a variable CCG category. Used for conjunctions (and possibly type-raising, if implemented as a unary rule).

Instance Methods

[hide private]

__init__(self, prim_only=False)
Initialize a variable (selects a new identifier)

source code

is_primitive(self)

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is_function(self)

source code

is_var(self)

source code

substitute(self, substitutions)
If there is a substitution corresponding to this variable, return the substituted category.

source code

can_unify(self, other)
If the variable can be replaced with other a substitution is returned.

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id(self)

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__cmp__(self, other)

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__hash__(self)

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__str__(self)

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Class Methods

[hide private]

new_id(cls)

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Class Variables

[hide private]

_maxID = 1

Method Details

[hide private]

init(self, prim_only=False)
(Constructor)

source code

Initialize a variable (selects a new identifier)

Parameters:

prim_only (boolean) - a boolean that determines whether the variable is restricted to primitives

Overrides: object.__init__

If there is a substitution corresponding to this variable, return the substituted category.

Overrides: AbstractCCGCategory.substitute

can_unify(self, other)

source code

If the variable can be replaced with other a substitution is returned.

Overrides: AbstractCCGCategory.can_unify

cmp(self, other)
(Comparison operator)

source code

Overrides: AbstractCCGCategory.__cmp__

hash(self)
(Hashing function)

source code

Overrides: AbstractCCGCategory.__hash__

str(self)
(Informal representation operator)

source code

Overrides: AbstractCCGCategory.__str__

type CCGVar

__init__(self, prim_only=False) (Constructor)

is_primitive(self)

is_function(self)

is_var(self)

substitute(self, substitutions)

can_unify(self, other)

__cmp__(self, other) (Comparison operator)

__hash__(self) (Hashing function)

__str__(self) (Informal representation operator)

init(self, prim_only=False)
(Constructor)

cmp(self, other)
(Comparison operator)

hash(self)
(Hashing function)

str(self)
(Informal representation operator)