43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
|
/// <reference types="mdast-util-math" />
|
||
|
|
/// <reference types="remark-parse" />
|
||
|
|
/// <reference types="remark-stringify" />
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @typedef {import('mdast').Root} Root
|
||
|
|
* @typedef {import('mdast-util-math').ToOptions} Options
|
||
|
|
* @typedef {import('unified').Processor<Root>} Processor
|
||
|
|
*/
|
||
|
|
|
||
|
|
import {mathFromMarkdown, mathToMarkdown} from 'mdast-util-math'
|
||
|
|
import {math} from 'micromark-extension-math'
|
||
|
|
|
||
|
|
/** @type {Readonly<Options>} */
|
||
|
|
const emptyOptions = {}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add support for math.
|
||
|
|
*
|
||
|
|
* @param {Readonly<Options> | null | undefined} [options]
|
||
|
|
* Configuration (optional).
|
||
|
|
* @returns {undefined}
|
||
|
|
* Nothing.
|
||
|
|
*/
|
||
|
|
export default function remarkMath(options) {
|
||
|
|
// @ts-expect-error: TS is wrong about `this`.
|
||
|
|
// eslint-disable-next-line unicorn/no-this-assignment
|
||
|
|
const self = /** @type {Processor} */ (this)
|
||
|
|
const settings = options || emptyOptions
|
||
|
|
const data = self.data()
|
||
|
|
|
||
|
|
const micromarkExtensions =
|
||
|
|
data.micromarkExtensions || (data.micromarkExtensions = [])
|
||
|
|
const fromMarkdownExtensions =
|
||
|
|
data.fromMarkdownExtensions || (data.fromMarkdownExtensions = [])
|
||
|
|
const toMarkdownExtensions =
|
||
|
|
data.toMarkdownExtensions || (data.toMarkdownExtensions = [])
|
||
|
|
|
||
|
|
micromarkExtensions.push(math(settings))
|
||
|
|
fromMarkdownExtensions.push(mathFromMarkdown())
|
||
|
|
toMarkdownExtensions.push(mathToMarkdown(settings))
|
||
|
|
}
|