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141 lines
3.6 KiB
Text
141 lines
3.6 KiB
Text
# micromark-util-classify-character
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[![Build][build-badge]][build]
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[![Coverage][coverage-badge]][coverage]
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[![Downloads][downloads-badge]][downloads]
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[![Size][bundle-size-badge]][bundle-size]
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[![Sponsors][sponsors-badge]][opencollective]
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[![Backers][backers-badge]][opencollective]
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[![Chat][chat-badge]][chat]
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micromark utility to classify whether a character is whitespace or punctuation.
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## Contents
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* [Install](#install)
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* [Use](#use)
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* [API](#api)
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* [`classifyCharacter(code)`](#classifycharactercode)
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* [Security](#security)
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* [Contribute](#contribute)
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* [License](#license)
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## Install
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[npm][]:
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```sh
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npm install micromark-util-classify-character
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```
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## Use
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```js
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/** @type {Tokenizer} */
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function tokenizeAttention(effects, ok) {
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return start
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// …
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/** @type {State} */
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function sequence(code) {
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if (code === marker) {
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// …
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}
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const token = effects.exit('attentionSequence')
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const after = classifyCharacter(code)
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const open =
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!after || (after === constants.characterGroupPunctuation && before)
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const close =
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!before || (before === constants.characterGroupPunctuation && after)
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// …
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}
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// …
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}
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```
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## API
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This module exports the following identifiers: `classifyCharacter`.
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There is no default export.
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### `classifyCharacter(code)`
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Classify whether a
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[character code](https://github.com/micromark/micromark#preprocess)
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represents whitespace, punctuation, or
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something else.
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Used for attention (emphasis, strong), whose sequences can open or close based
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on the class of surrounding characters.
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Note that eof (`null`) is seen as whitespace.
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###### Returns
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`constants.characterGroupWhitespace`, `constants.characterGroupPunctuation`,
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or `undefined.`
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## Security
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See [`security.md`][securitymd] in [`micromark/.github`][health] for how to
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submit a security report.
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## Contribute
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See [`contributing.md`][contributing] in [`micromark/.github`][health] for ways
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to get started.
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See [`support.md`][support] for ways to get help.
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This project has a [code of conduct][coc].
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By interacting with this repository, organisation, or community you agree to
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abide by its terms.
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## License
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[MIT][license] © [Titus Wormer][author]
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<!-- Definitions -->
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[build-badge]: https://github.com/micromark/micromark/workflows/main/badge.svg
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[build]: https://github.com/micromark/micromark/actions
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[coverage-badge]: https://img.shields.io/codecov/c/github/micromark/micromark.svg
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[coverage]: https://codecov.io/github/micromark/micromark
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[downloads-badge]: https://img.shields.io/npm/dm/micromark-util-classify-character.svg
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[downloads]: https://www.npmjs.com/package/micromark-util-classify-character
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[bundle-size-badge]: https://img.shields.io/bundlephobia/minzip/micromark-util-classify-character.svg
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[bundle-size]: https://bundlephobia.com/result?p=micromark-util-classify-character
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[sponsors-badge]: https://opencollective.com/unified/sponsors/badge.svg
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[backers-badge]: https://opencollective.com/unified/backers/badge.svg
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[opencollective]: https://opencollective.com/unified
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[npm]: https://docs.npmjs.com/cli/install
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[chat-badge]: https://img.shields.io/badge/chat-discussions-success.svg
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[chat]: https://github.com/micromark/micromark/discussions
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[license]: https://github.com/micromark/micromark/blob/main/license
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[author]: https://wooorm.com
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[health]: https://github.com/micromark/.github
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[securitymd]: https://github.com/micromark/.github/blob/HEAD/security.md
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[contributing]: https://github.com/micromark/.github/blob/HEAD/contributing.md
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[support]: https://github.com/micromark/.github/blob/HEAD/support.md
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[coc]: https://github.com/micromark/.github/blob/HEAD/code-of-conduct.md
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