@mdx-js/language-service/lib/mdast-utils.js

MDX support for Volar

/**
 * @import {Nodes} from 'mdast'
 * @import {Point, Position} from 'unist'
 */

/**
 * Get the offset of a parsed unist point.
 *
 * @param {Point} point
 *   The unist point of which to get the offset.
 * @returns {number}
 *   The offset of the unist point.
 */
export function getPointOffset(point) {
  return /** @type {number} */ (point.offset)
}

/**
 * Get the start offset of a parsed unist point.
 *
 * @param {Nodes} node
 *   The unist point of which to get the start offset.
 * @returns {number}
 *   The start offset of the unist point.
 */
export function getNodeStartOffset(node) {
  return getPointOffset(/** @type {Position} */ (node.position).start)
}

/**
 * Get the end offset of a parsed unist point.
 *
 * @param {Nodes} node
 *   The unist point of which to get the end offset.
 * @returns {number}
 *   The end offset of the unist point.
 */
export function getNodeEndOffset(node) {
  return getPointOffset(/** @type {Position} */ (node.position).end)
}