mirror of
https://github.com/hedgedoc/hedgedoc.git
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143 lines
3.9 KiB
Markdown
143 lines
3.9 KiB
Markdown
<!--
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SPDX-FileCopyrightText: 2020 The HedgeDoc developers (see AUTHORS file)
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SPDX-License-Identifier: CC0-1.0
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-->
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# Markdown-It plugins
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This repository contains plugins for [Markdown-It](https://github.com/markdown-it/markdown-it) that are used by HedgeDoc.
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All these plugins are (re)created in typescript.
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## License
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Everything is licensed under MIT
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## Usage
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Install the lib using `yarn install @hedgedoc/markdown-it-plugins` or `npm i @hedgedoc/markdown-it-plugins`
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## Development
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If you want to contribute to this lib then:
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- Clone this repository
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- Install the dependencies using `yarn install`. Don't use `npm`!
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- Make your changes
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- Make sure that your changes are covered by tests. Use `yarn test` to run all tests
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- Make sure that your code follows the code style. Use `yarn lint` to check the style
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- Commit your changes (please use [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/)) and create a pull request
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## markdown-it-image-size
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A markdown-it plugin for size-specified image markups. This plugin overloads the original image renderer of markdown-it.
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> This is a typescript port of https://github.com/tatsy/markdown-it-imsize without the local file system support.
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### Usage
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#### Enable plugin
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```ts
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import MarkdownIt from 'markdown-it'
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import { imageSize } from '@hedgedoc/markdown-it-plugins'
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const md = new MarkdownIt({
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html: true,
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linkify: true,
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typography: true
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}).use(imageSize);
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```
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#### Example
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```md
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```
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is interpreted as
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```html
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<p><img src="image.png" alt="test" width="100" height="200"></p>
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```
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## markdown-it-better-task-lists
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A markdown-it plugin that renders GitHub-style task-lists. It builds [task/todo lists](https://github.com/blog/1825-task-lists-in-all-markdown-documents) out of Markdown lists with items starting with `[ ]` or `[x]`.
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This is a typescript port of [markdown-it-task-lists](https://github.com/revin/markdown-it-task-lists).
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### Why is this useful?
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When you have markdown documentation with checklists, rendering HTML checkboxes
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out of the list items looks nicer than the raw square brackets.
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### Usage
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Use it the same as a normal markdown-it plugin:
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```ts
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import MarkdownIt from 'markdown-it'
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import { taskLists } from '@hedgedoc/markdown-it-plugins'
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const parser = new MarkdownIt().use(taskLists)
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const result = parser.render(`
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- [ ] Open task
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- [x] Done task
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- Not a task
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`) // markdown string containing task list items
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```
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The rendered checkboxes are disabled; to change this, set `enabled` property of the
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plugin options to `true`:
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```ts
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const parser = new MarkdownIt().use(taskLists, { enabled: true })
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```
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If you need to know which line in the markdown document the generated checkbox comes
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set the `lineNumber` property of the plugin options to `true` for the
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`<input>` tag to be created with a data-line attribute containing the line number:
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```ts
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const parser = new MarkdownIt().use(taskLists, { lineNumber: true })
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```
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If you'd like to wrap the rendered list items in a `<label>` element for UX
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purposes, set the `label` property of the plugin options to `true`:
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```ts
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const parser = new MarkdownIt().use(taskLists, { label: true })
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```
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To add the label after the checkbox set the `labelAfter` property of the plugin
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options to `true`:
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```ts
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const parser = new MarkdownIt().use(taskLists, { label: true, labelAfter: true })
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```
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**Note:** This option does require the `label` option to be truthy.
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The options can be combined, of course.
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## markdown-it-toc
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A markdown-it plugin that renders a table of contents.
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It uses the found headlines as content.
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This is a typescript port of [markdown-it-toc-done-right](https://github.com/nagaozen/markdown-it-toc-done-right).
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### Usage
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Use it the same as a normal markdown-it plugin:
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```ts
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import MarkdownIt from 'markdown-it'
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import { toc } from '@hedgedoc/markdown-it-plugins'
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const parser = new MarkdownIt().use(toc)
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const result = parser.render(`
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[toc]
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# head 1
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# head 2
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`) // markdown string containing task list items
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```
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