nltk.parse.util.TestGrammar

class documentation

class TestGrammar(object): (source)

Constructor: TestGrammar(grammar, suite, accept, reject)

Unit tests for CFG.

Method	`__init__`	Undocumented
Method	`run`	grammatical (`accept`) and
Instance Variable	`cp`	Undocumented
Instance Variable	`suite`	Undocumented
Instance Variable	`test_grammar`	Undocumented
Instance Variable	`_accept`	Undocumented
Instance Variable	`_reject`	Undocumented

def __init__(self, grammar, suite, accept=None, reject=None): (source) ¶

Undocumented

def run(self, show_trees=False): (source) ¶

Sentences in the test suite are divided into two classes:

grammatical (accept) and
ungrammatical (reject).

If a sentence should parse accordng to the grammar, the value of trees will be a non-empty list. If a sentence should be rejected according to the grammar, then the value of trees will be None.

cp = (source) ¶

Undocumented

suite = (source) ¶

Undocumented

test_grammar = (source) ¶

Undocumented

_accept = (source) ¶

Undocumented

_reject = (source) ¶

Undocumented