nltk.tokenize.api module¶

Tokenizer Interface

class nltk.tokenize.api.StringTokenizer[source]¶

A tokenizer that divides a string into substrings by splitting on the specified string (defined in subclasses).

span_tokenize(s)[source]¶

Identify the tokens using integer offsets (start_i, end_i), where s[start_i:end_i] is the corresponding token.

tokenize(s)[source]¶

Return a tokenized copy of s.

class nltk.tokenize.api.TokenizerI[source]¶

Bases: ABC

A processing interface for tokenizing a string. Subclasses must define tokenize() or tokenize_sents() (or both).

span_tokenize(s: str) → Iterator[Tuple[int, int]][source]¶

Identify the tokens using integer offsets (start_i, end_i), where s[start_i:end_i] is the corresponding token.

span_tokenize_sents(strings: List[str]) → Iterator[List[Tuple[int, int]]][source]¶

Apply self.span_tokenize() to each element of strings. I.e.:

return [self.span_tokenize(s) for s in strings]

abstract tokenize(s: str) → List[str][source]¶

Return a tokenized copy of s.

tokenize_sents(strings: List[str]) → List[List[str]][source]¶

Apply self.tokenize() to each element of strings. I.e.:

return [self.tokenize(s) for s in strings]

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