nltk.grammar.read_grammar

nltk.grammar.read_grammar(input, nonterm_parser, probabilistic=False, encoding=None)

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