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Add section on special tokenizer component [ci skip]

This commit is contained in:
Ines Montani 2019-07-25 14:25:03 +02:00
parent 1fa6d6ba55
commit 02e444ec7c
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website/docs/usage/101/_pipelines.md
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@ -52,4 +52,18 @@ entities into account when making predictions.
</Accordion>
<Accordion title="Why is the tokenizer special?" id="pipeline-components-tokenizer">
The tokenizer is a "special" component and isn't part of the regular pipeline.
It also doesn't show up in `nlp.pipe_names`. The reason is that there can only
really be one tokenizer, and while all other pipeline components take a `Doc`
and return it, the tokenizer takes a **string of text** and turns it into a
`Doc`. You can still customize the tokenizer, though. `nlp.tokenizer` is
writable, so you can either create your own
[`Tokenizer` class from scratch](/usage/linguistic-features#native-tokenizers),
or even replace it with an
[entirely custom function](/usage/linguistic-features#custom-tokenizer).
</Accordion>
---