micromark-util-events-to-acorn

micromark utility to try and parse events w/ acorn.

Contents

• Install
• Use
• API
  • eventsToAcorn(events, options)
• Security
• Contribute
• License

Install

npm:

npm install micromark-util-events-to-acorn

Use

import {eventsToAcorn} from 'micromark-util-events-to-acorn'

// A factory that uses the utility:
/** @type {Tokenizer} */
function factoryMdxExpression(effects, ok, nok) {
  return start

  // …

  /** @type {State} */
  atClosingBrace(code) {
    // …

    // Gnostic mode: parse w/ acorn.
    const result = eventsToAcorn(
      self.events.slice(eventStart),
      acorn,
      acornOptions,
      {
        start: startPosition,
        expression: true,
        allowEmpty,
        prefix: spread ? '({' : '',
        suffix: spread ? '})' : ''
      }
    )

    // …
  }

  // …
}

API

This module exports the following identifiers: eventsToAcorn. There is no default export.

The export map supports the endorsed development condition. Run node --conditions development module.js to get instrumented dev code. Without this condition, production code is loaded.

eventsToAcorn(events, options)

Parameters

• events (Array<Event>) — Events
• options.acorn (Acorn, required) — Object with acorn.parse and acorn.parseExpressionAt
• options.acornOptions (AcornOptions) — Configuration for acorn
• options.start (Point, optional) — Place where events start
• options.prefix (string, default: '') — Text to place before events
• options.suffix (string, default: '') — Text to place after events
• options.expression (boolean, default: false) — Whether this is a program or expression
• options.allowEmpty (boolean, default: false) — Whether an empty expression is allowed (programs are always allowed to be empty).

Returns

• estree (Program?) — Estree node
• error (Error?) — Error if unparseable
• swallow (boolean) — Whether the error, if there is one, can be swallowed and more JavaScript could be valid.

Security

See security.md in micromark/.github for how to submit a security report.

Contribute

See contributing.md in micromark/.github for ways to get started. See support.md for ways to get help.

This project has a code of conduct. By interacting with this repository, organisation, or community you agree to abide by its terms.

License

MIT © Titus Wormer