@microflash/remark-callout-directives

4.1.0 • Public • Published

remark-callout-directives

npm regression license

remark plugin to render callouts and admonitions with directives

What’s this?

This package is a unified (remark) plugin to add support for callouts and admonitions using the directives. It depends on remark-directive which must be included before this plugin.

When should I use this?

Callouts and admonitions are used to provide additional information related to a topic under discussion or draw out attention to potential possibilities. They are widely used in documentation by popular libraries, frameworks, and applications (for example, Docusaurus, Obsidian, etc). Use this plugin if you need something similar.

Prerequisites

You should import remark-directive before this plugin for callouts to work.

Install

This package is ESM only.

In Node.js (version 16.0+), install with npm:

npm install @microflash/remark-callout-directives

In Deno, with esm.sh:

import remarkCalloutDirectives from "https://esm.sh/@microflash/remark-callout-directives"

In browsers, with esm.sh:

<script type="module">
  import remarkCalloutDirectives from "https://esm.sh/@microflash/remark-callout-directives?bundle"
</script>

Use

Say we have the following file example.md:

:::note
Some **content** with _Markdown_ `syntax`.
:::

And our module example.js looks as follows:

import { read } from "to-vfile"
import { unified } from "unified"
import remarkParse from "remark-parse"
import remarkDirective from "remark-directive"
import remarkCalloutDirectives from "@microflash/remark-callout-directives"
import remarkRehype from "remark-rehype"
import rehypeStringify from "rehype-stringify"

main()

async function main() {
  const file = await unified()
    .use(remarkParse)
    .use(remarkDirective)
    .use(remarkCalloutDirectives)
    .use(remarkRehype, { allowDangerousHtml: true })
    .use(rehypeStringify, { allowDangerousHtml: true })
    .process(await read("example.md"))

  console.log(String(file))
}

Running that with node example.js yields:

<aside class="callout callout-note">
  <div class="callout-indicator">
    <div class="callout-hint">
      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-note">
        <path d="M12 8h.01M12 12v4"/>
        <circle cx="12" cy="12" r="10"/>
      </svg>
    </div>
    <div class="callout-title">Note</div>
  </div>
  <div class="callout-content">
    <p>Some <strong>content</strong> with <em>Markdown</em> <code>syntax</code>.
    </p>
  </div>
</aside>

API

The default export is remarkCalloutDirectives.

Options

The following options are available. All of them are optional.

  • aliases: a list of aliases for the callouts
  • callouts: an object containing the callout definitions
  • tagName: global custom element type. If specified, it'll override the default aside element type. This can be overridden by callout specific configuration (callouts.<calloutName>.tagName).

Default options

By default, the following callouts and aliases are preconfigured.

{
  aliases: {},
  callouts: {
    note: {
      title: "Note",
      hint: `<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-note"><path d="M12 8h.01M12 12v4"/><circle cx="12" cy="12" r="10"/></svg>`
    },
    commend: {
      title: "Success",
      hint: `<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-commend"><path d="m8 12 2.7 2.7L16 9.3"/><circle cx="12" cy="12" r="10"/></svg>`
    },
    warn: {
      title: "Warning",
      hint: `<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-warn"><path d="M12 9v4m0 4h.01M8.681 4.082C9.351 2.797 10.621 2 12 2s2.649.797 3.319 2.082l6.203 11.904a4.28 4.28 0 0 1-.046 4.019C20.793 21.241 19.549 22 18.203 22H5.797c-1.346 0-2.59-.759-3.273-1.995a4.28 4.28 0 0 1-.046-4.019L8.681 4.082Z"/></svg>`
    },
    deter: {
      title: "Danger",
      hint: `<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-deter"><path d="M12 12s-5.6 4.6-3.6 8c1.6 2.6 5.7 2.7 7.2 0 2-3.7-3.6-8-3.6-8Z"/><path d="M13.004 2 8.5 9 6.001 6s-4.268 7.206-1.629 11.8c3.016 5.5 11.964 5.7 15.08 0C23.876 10 13.004 2 13.004 2Z"/></svg>`
    },
    assert: {
      title: "Info",
      hint: `<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-assert"><path d="M12.5 7.5h.01m-.01 4v4m-7.926.685L2 21l6.136-1.949c1.307.606 2.791.949 4.364.949 5.243 0 9.5-3.809 9.5-8.5S17.743 3 12.5 3 3 6.809 3 11.5c0 1.731.579 3.341 1.574 4.685"/></svg>`
    }
  }
}

Themes

To style the callouts, import a theme from themes folder.

GitHub

GitHub theme

VitePress

VitePress theme

Microflash

Microflash theme

For more advanced customizations, take a look at the existing themes and remix your own.

Examples

Example: callout with custom title

Say we have the following file example.md:

:::warn{title="Hold on there"}
Some **content** with _Markdown_ `syntax`.
:::

Running example.js will yield:

<aside class="callout callout-warn">
  <div class="callout-indicator">
    <div class="callout-hint">
      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-warn">
        <path d="M12 9v4m0 4h.01M8.681 4.082C9.351 2.797 10.621 2 12 2s2.649.797 3.319 2.082l6.203 11.904a4.28 4.28 0 0 1-.046 4.019C20.793 21.241 19.549 22 18.203 22H5.797c-1.346 0-2.59-.759-3.273-1.995a4.28 4.28 0 0 1-.046-4.019L8.681 4.082Z"/>
      </svg>
    </div>
    <div class="callout-title">Hold on there</div>
  </div>
  <div class="callout-content">
    <p>Some <strong>content</strong> with <em>Markdown</em> <code>syntax</code>.</p>
  </div>
</aside>

Example: callout with markdown title

Say we have the following file example.md:

:::warn{title="**Hold** on _there_!"}
Some **content** with _Markdown_ `syntax`.
:::

Running example.js will yield:

<aside class="callout callout-warn">
  <div class="callout-indicator">
    <div class="callout-hint">
      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-warn">
        <path d="M12 9v4m0 4h.01M8.681 4.082C9.351 2.797 10.621 2 12 2s2.649.797 3.319 2.082l6.203 11.904a4.28 4.28 0 0 1-.046 4.019C20.793 21.241 19.549 22 18.203 22H5.797c-1.346 0-2.59-.759-3.273-1.995a4.28 4.28 0 0 1-.046-4.019L8.681 4.082Z"/>
      </svg>
    </div>
    <div class="callout-title">
      <strong>Hold</strong> on <em>there</em>!
    </div>
  </div>
  <div class="callout-content">
    <p>Some <strong>content</strong> with <em>Markdown</em> <code>syntax</code>.</p>
  </div>
</aside>

Example: custom callouts

You can add your own callouts as well. Say we have the following file example.md:

:::shoutout{title="Well done!"}
Some **content** with _Markdown_ `syntax`.
:::

And our module example.js looks as follows:

import { read } from "to-vfile"
import { unified } from "unified"
import remarkParse from "remark-parse"
import remarkDirective from "remark-directive"
import remarkCalloutDirectives from "@microflash/remark-callout-directives"
import remarkRehype from "remark-rehype"
import rehypeStringify from "rehype-stringify"

main()

async function main() {
  const file = await unified()
    .use(remarkParse)
    .use(remarkDirective)
    .use(remarkCalloutDirectives, {
      callouts: {
        shoutout: {
          title: "Shoutout",
          hint: `<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-shoutout"><path d="M4.7 6.5h.01m8.49-2.8h.01m4.29 15.6h.01m2.79-8.5h.01m-6.41-.7 2.2-.7V6.5h2.8V3.7L21 3m-6.253 10.767c1.676-.175 2.93-.38 3.739-.064 1.234.483 1.497 1.529 1.409 3.008m-9.723-7.519c.175-1.676.38-2.93.064-3.739-.483-1.234-1.529-1.497-3.008-1.409M6.5 10.4l7.1 7.1L3 21z"/></svg>`
        }
      }
    })
    .use(remarkRehype, { allowDangerousHtml: true })
    .use(rehypeStringify, { allowDangerousHtml: true })
    .process(await read("example.md"))

  console.log(String(file))
}

Running example.js will yield:

<aside class="callout callout-shoutout">
  <div class="callout-indicator">
    <div class="callout-hint">
      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-shoutout">
        <path d="M4.7 6.5h.01m8.49-2.8h.01m4.29 15.6h.01m2.79-8.5h.01m-6.41-.7 2.2-.7V6.5h2.8V3.7L21 3m-6.253 10.767c1.676-.175 2.93-.38 3.739-.064 1.234.483 1.497 1.529 1.409 3.008m-9.723-7.519c.175-1.676.38-2.93.064-3.739-.483-1.234-1.529-1.497-3.008-1.409M6.5 10.4l7.1 7.1L3 21z"/>
      </svg>
    </div>
    <div class="callout-title">Well done!</div>
  </div>
  <div class="callout-content">
    <p>Some <strong>content</strong> with <em>Markdown</em> <code>syntax</code>.</p>
  </div>
</aside>

Example: configure aliases

Say we have the following file example.md:

:::danger
Some **content** with _Markdown_ `syntax`.
:::

And our module example.js looks as follows:

import { read } from "to-vfile"
import { unified } from "unified"
import remarkParse from "remark-parse"
import remarkDirective from "remark-directive"
import remarkCalloutDirectives from "@microflash/remark-callout-directives"
import remarkRehype from "remark-rehype"
import rehypeStringify from "rehype-stringify"

main()

async function main() {
  const file = await unified()
    .use(remarkParse)
    .use(remarkDirective)
    .use(remarkCalloutDirectives, {
      aliases: {
        danger: "deter"
      }
    })
    .use(remarkRehype, { allowDangerousHtml: true })
    .use(rehypeStringify, { allowDangerousHtml: true })
    .process(await read("example.md"))

  console.log(String(file))
}

Running that with node example.js yields:

<aside class="callout callout-deter">
  <div class="callout-indicator">
    <div class="callout-hint">
      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-deter">
        <path d="M12 12s-5.6 4.6-3.6 8c1.6 2.6 5.7 2.7 7.2 0 2-3.7-3.6-8-3.6-8Z"/>
        <path d="M13.004 2 8.5 9 6.001 6s-4.268 7.206-1.629 11.8c3.016 5.5 11.964 5.7 15.08 0C23.876 10 13.004 2 13.004 2Z"/>
      </svg>
    </div>
    <div class="callout-title">Danger</div>
  </div>
  <div class="callout-content">
    <p>Some <strong>content</strong> with <em>Markdown</em> <code>syntax</code>.</p>
  </div>
</aside>

Example: configure element type

By default, a callout is rendered as an aside. You can override this behavior by providing a tagName for the callout.

Say we have the following file example.md:

:::assert
Some **content** with _Markdown_ `syntax`.
:::

And our module example.js looks as follows:

import { read } from "to-vfile"
import { unified } from "unified"
import remarkParse from "remark-parse"
import remarkDirective from "remark-directive"
import remarkCalloutDirectives from "@microflash/remark-callout-directives"
import remarkRehype from "remark-rehype"
import rehypeStringify from "rehype-stringify"

main()

async function main() {
  const file = await unified()
    .use(remarkParse)
    .use(remarkDirective)
    .use(remarkCalloutDirectives, {
      callouts: {
        assert: {
          tagName: "div"
        }
      }
    })
    .use(remarkRehype, { allowDangerousHtml: true })
    .use(rehypeStringify, { allowDangerousHtml: true })
    .process(await read("example.md"))

  console.log(String(file))
}

Running that with node example.js yields:

<div class="callout callout-assert">
  <div class="callout-indicator">
    <div class="callout-hint">
      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-assert">
        <path d="M12.5 7.5h.01m-.01 4v4m-7.926.685L2 21l6.136-1.949c1.307.606 2.791.949 4.364.949 5.243 0 9.5-3.809 9.5-8.5S17.743 3 12.5 3 3 6.809 3 11.5c0 1.731.579 3.341 1.574 4.685"/>
      </svg>
    </div>
    <div class="callout-title">Info</div>
  </div>
  <div class="callout-content">
    <p>Some <strong>content</strong> with <em>Markdown</em> <code>syntax</code>.</p>
  </div>
</div>

Example: configure element type globally

You can override the element type of all callouts by providing a tagName.

Say we have the following file example.md:

:::assert
Some **content** with _Markdown_ `syntax`.
:::

And our module example.js looks as follows:

import { read } from "to-vfile"
import { unified } from "unified"
import remarkParse from "remark-parse"
import remarkDirective from "remark-directive"
import remarkCalloutDirectives from "@microflash/remark-callout-directives"
import remarkRehype from "remark-rehype"
import rehypeStringify from "rehype-stringify"

main()

async function main() {
  const file = await unified()
    .use(remarkParse)
    .use(remarkDirective)
    .use(remarkCalloutDirectives, {
      tagName: "section"
    })
    .use(remarkRehype, { allowDangerousHtml: true })
    .use(rehypeStringify, { allowDangerousHtml: true })
    .process(await read("example.md"))

  console.log(String(file))
}

Running that with node example.js yields:

<section class="callout callout-assert">
  <div class="callout-indicator">
    <div class="callout-hint">
      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-assert">
        <path d="M12.5 7.5h.01m-.01 4v4m-7.926.685L2 21l6.136-1.949c1.307.606 2.791.949 4.364.949 5.243 0 9.5-3.809 9.5-8.5S17.743 3 12.5 3 3 6.809 3 11.5c0 1.731.579 3.341 1.574 4.685"/>
      </svg>
    </div>
    <div class="callout-title">Info</div>
  </div>
  <div class="callout-content">
    <p>Some <strong>content</strong> with <em>Markdown</em> <code>syntax</code>.</p>
  </div>
</section>

Example: configure element type globally as well as specifically for a callout

You can mix the tagName configurations globally and specifically for a callout.

Say we have the following file example.md:

:::assert
Some **content** with _Markdown_ `syntax`.
:::

:::note
Some **content** with _Markdown_ `syntax`.
:::

And our module example.js looks as follows:

import { read } from "to-vfile"
import { unified } from "unified"
import remarkParse from "remark-parse"
import remarkDirective from "remark-directive"
import remarkCalloutDirectives from "@microflash/remark-callout-directives"
import remarkRehype from "remark-rehype"
import rehypeStringify from "rehype-stringify"

main()

async function main() {
  const file = await unified()
    .use(remarkParse)
    .use(remarkDirective)
    .use(remarkCalloutDirectives, {
      tagName: "section",
      callouts: {
        assert: {
          tagName: "div"
        }
      }
    })
    .use(remarkRehype, { allowDangerousHtml: true })
    .use(rehypeStringify, { allowDangerousHtml: true })
    .process(await read("example.md"))

  console.log(String(file))
}

Running that with node example.js yields:

<div class="callout callout-assert">
  <div class="callout-indicator">
    <div class="callout-hint">
      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-assert">
        <path d="M12.5 7.5h.01m-.01 4v4m-7.926.685L2 21l6.136-1.949c1.307.606 2.791.949 4.364.949 5.243 0 9.5-3.809 9.5-8.5S17.743 3 12.5 3 3 6.809 3 11.5c0 1.731.579 3.341 1.574 4.685"/>
      </svg>
    </div>
    <div class="callout-title">Info</div>
  </div>
  <div class="callout-content">
    <p>Some <strong>content</strong> with <em>Markdown</em> <code>syntax</code>.</p>
  </div>
</div>

<section class="callout callout-note">
  <div class="callout-indicator">
    <div class="callout-hint">
      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-note">
        <path d="M12 8h.01M12 12v4"/>
        <circle cx="12" cy="12" r="10"/>
      </svg>
    </div>
    <div class="callout-title">Note</div>
  </div>
  <div class="callout-content">
    <p>Some <strong>content</strong> with <em>Markdown</em> <code>syntax</code>.
    </p>
  </div>
</section>

Example: override the defaults

You can override the defaults by passing your own preferences; they will be merged on top of the default values.

Say we have the following file example.md:

:::commend
Some **content** with _Markdown_ `syntax`.
:::

And our module example.js looks as follows:

import { read } from "to-vfile"
import { unified } from "unified"
import remarkParse from "remark-parse"
import remarkDirective from "remark-directive"
import remarkCalloutDirectives from "@microflash/remark-callout-directives"
import remarkRehype from "remark-rehype"
import rehypeStringify from "rehype-stringify"

main()

async function main() {
  const file = await unified()
    .use(remarkParse)
    .use(remarkDirective)
    .use(remarkCalloutDirectives, {
      callouts: {
        commend: {
          title: "Tip",
          hint: `<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-commend"><path d="M22 11.08V12a10 10 0 1 1-5.93-9.14"/><path d="M22 4 12 14.01l-3-3"/></svg>`
        }
      }
    })
    .use(remarkRehype, { allowDangerousHtml: true })
    .use(rehypeStringify, { allowDangerousHtml: true })
    .process(await read("example.md"))

  console.log(String(file))
}

Running that with node example.js yields:

<aside class="callout callout-commend">
  <div class="callout-indicator">
    <div class="callout-hint">
      <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" class="callout-hint-commend">
        <path d="M22 11.08V12a10 10 0 1 1-5.93-9.14"/>
        <path d="M22 4 12 14.01l-3-3"/>
      </svg>
    </div>
    <div class="callout-title">Tip</div>
  </div>
  <div class="callout-content">
    <p>Some <strong>content</strong> with <em>Markdown</em> <code>syntax</code>.</p>
  </div>
</aside>

License

MIT

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