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207 lines
5.9 KiB
Markdown
207 lines
5.9 KiB
Markdown
# unist-util-stringify-position
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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][size-badge]][size]
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[![Sponsors][sponsors-badge]][collective]
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[![Backers][backers-badge]][collective]
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[![Chat][chat-badge]][chat]
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[unist][] utility to pretty print the positional info of a node.
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## Contents
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* [What is this?](#what-is-this)
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* [When should I use this?](#when-should-i-use-this)
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* [Install](#install)
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* [Use](#use)
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* [API](#api)
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* [`stringifyPosition(node|position|point)`](#stringifypositionnodepositionpoint)
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* [Types](#types)
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* [Compatibility](#compatibility)
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* [Security](#security)
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* [Related](#related)
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* [Contribute](#contribute)
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* [License](#license)
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## What is this?
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This package is a utility that takes any [unist][] (whether mdast, hast, etc)
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node, position, or point, and serializes its positional info.
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## When should I use this?
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This utility is useful to display where something occurred in the original
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document, in one standard way, for humans.
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For example, when throwing errors or warning messages about something.
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## Install
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This package is [ESM only][esm].
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In Node.js (version 16+), install with [npm][]:
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```sh
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npm install unist-util-stringify-position
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```
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In Deno with [`esm.sh`][esmsh]:
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```js
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import {stringifyPosition} from 'https://esm.sh/unist-util-stringify-position@4'
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```
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In browsers with [`esm.sh`][esmsh]:
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```html
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<script type="module">
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import {stringifyPosition} from 'https://esm.sh/unist-util-stringify-position@4?bundle'
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</script>
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```
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## Use
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```js
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import {stringifyPosition} from 'unist-util-stringify-position'
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stringifyPosition({line: 2, column: 3}) // => '2:3' (point)
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stringifyPosition({start: {line: 2}, end: {line: 3}}) // => '2:1-3:1' (position)
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stringifyPosition({
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type: 'text',
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value: '!',
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position: {
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start: {line: 5, column: 11},
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end: {line: 5, column: 12}
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}
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}) // => '5:11-5:12' (node)
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```
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## API
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This package exports the identifier [`stringifyPosition`][stringifyposition].
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There is no default export.
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### `stringifyPosition(node|position|point)`
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Serialize the positional info of a point, position (start and end points), or
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node.
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###### Parameters
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* `node` ([`Node`][node])
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— node whose `position` fields to serialize
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* `position` ([`Position`][position])
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— position whose `start` and `end` points to serialize
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* `point` ([`Point`][point])
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— point whose `line` and `column` fields to serialize
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###### Returns
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Pretty printed positional info of a node (`string`).
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In the format of a range `ls:cs-le:ce` (when given `node` or `position`) or a
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point `l:c` (when given `point`), where `l` stands for line, `c` for column, `s`
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for `start`, and `e` for end.
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An empty string (`''`) is returned if the given value is neither `node`,
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`position`, nor `point`.
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## Types
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This package is fully typed with [TypeScript][].
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It exports no additional types.
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## Compatibility
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Projects maintained by the unified collective are compatible with maintained
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versions of Node.js.
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When we cut a new major release, we drop support for unmaintained versions of
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Node.
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This means we try to keep the current release line,
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`unist-util-stringify-position@^4`, compatible with Node.js 16.
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## Security
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This project is safe.
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## Related
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* [`unist-util-generated`](https://github.com/syntax-tree/unist-util-generated)
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— check if a node is generated
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* [`unist-util-position`](https://github.com/syntax-tree/unist-util-position)
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— get positional info of nodes
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* [`unist-util-remove-position`](https://github.com/syntax-tree/unist-util-remove-position)
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— remove positional info from trees
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* [`unist-util-source`](https://github.com/syntax-tree/unist-util-source)
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— get the source of a value (node or position) in a file
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## Contribute
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See [`contributing.md` in `syntax-tree/.github`][contributing] for ways to get
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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, organization, 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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<!-- Definition -->
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[build-badge]: https://github.com/syntax-tree/unist-util-stringify-position/workflows/main/badge.svg
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[build]: https://github.com/syntax-tree/unist-util-stringify-position/actions
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[coverage-badge]: https://img.shields.io/codecov/c/github/syntax-tree/unist-util-stringify-position.svg
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[coverage]: https://codecov.io/github/syntax-tree/unist-util-stringify-position
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[downloads-badge]: https://img.shields.io/npm/dm/unist-util-stringify-position.svg
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[downloads]: https://www.npmjs.com/package/unist-util-stringify-position
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[size-badge]: https://img.shields.io/badge/dynamic/json?label=minzipped%20size&query=$.size.compressedSize&url=https://deno.bundlejs.com/?q=unist-util-stringify-position
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[size]: https://bundlejs.com/?q=unist-util-stringify-position
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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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[collective]: https://opencollective.com/unified
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[chat-badge]: https://img.shields.io/badge/chat-discussions-success.svg
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[chat]: https://github.com/syntax-tree/unist/discussions
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[npm]: https://docs.npmjs.com/cli/install
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[license]: license
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[author]: https://wooorm.com
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[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c
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[esmsh]: https://esm.sh
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[typescript]: https://www.typescriptlang.org
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[contributing]: https://github.com/syntax-tree/.github/blob/main/contributing.md
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[support]: https://github.com/syntax-tree/.github/blob/main/support.md
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[coc]: https://github.com/syntax-tree/.github/blob/main/code-of-conduct.md
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[unist]: https://github.com/syntax-tree/unist
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[node]: https://github.com/syntax-tree/unist#node
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[position]: https://github.com/syntax-tree/unist#position
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[point]: https://github.com/syntax-tree/unist#point
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[stringifyposition]: #stringifypositionnodepositionpoint
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