site/node_modules/mdast-util-to-hast/lib/handlers/link-reference.js

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2024-10-14 06:09:33 +00:00
/**
* @typedef {import('hast').Element} Element
* @typedef {import('hast').ElementContent} ElementContent
* @typedef {import('hast').Properties} Properties
* @typedef {import('mdast').LinkReference} LinkReference
* @typedef {import('../state.js').State} State
*/
import {normalizeUri} from 'micromark-util-sanitize-uri'
import {revert} from '../revert.js'
/**
* Turn an mdast `linkReference` node into hast.
*
* @param {State} state
* Info passed around.
* @param {LinkReference} node
* mdast node.
* @returns {Array<ElementContent> | ElementContent}
* hast node.
*/
export function linkReference(state, node) {
const id = String(node.identifier).toUpperCase()
const def = state.definitionById.get(id)
if (!def) {
return revert(state, node)
}
/** @type {Properties} */
const properties = {href: normalizeUri(def.url || '')}
if (def.title !== null && def.title !== undefined) {
properties.title = def.title
}
/** @type {Element} */
const result = {
type: 'element',
tagName: 'a',
properties,
children: state.all(node)
}
state.patch(node, result)
return state.applyData(node, result)
}