nltk.read_grammar()¶

nltk.read_grammar(input, nonterm_parser, probabilistic=False, encoding=None)[source]¶

Return a pair consisting of a starting category and a list of Productions.

Parameters:	input – a grammar, either in the form of a string or else as a list of strings. nonterm_parser – a function for parsing nonterminals. It should take a (string, position) as argument and return a (nonterminal, position) as result. probabilistic (bool) – are the grammar rules probabilistic? encoding (str) – the encoding of the grammar, if it is a binary string