md-to-rich

import { toHtml } from 'md-to-rich'

const html = toHtml(`
# Welcome

A paragraph with **bold**, *italic*, and \`inline code\`.

> A blockquote

- Item one
- Item two
`, { headingIds: true, classNames: { p: 'prose' } })

// Output:
// <h1 id="welcome">Welcome</h1>
// <p class="prose">A paragraph with <strong>bold</strong>,
//   <em>italic</em>, and <code>inline code</code>.</p>
// <blockquote><p>A blockquote</p></blockquote>
// <ul><li>Item one</li><li>Item two</li></ul>

import { toAnsi } from 'md-to-rich'

const output = toAnsi(`
# Hello World

A paragraph with **bold** and *italic* text.

\`\`\`typescript
const x: number = 42
\`\`\`
`, { columns: 80, hyperlinks: false })

// Output: ANSI-escaped string rendered in terminal
// - h1 rendered bold + underlined
// - Bold/italic inline styles
// - Code block with box-drawing border

import { toDocTree } from 'md-to-rich'
import type { DocDocument } from 'md-to-rich'

const tree: DocDocument = toDocTree('# Hello\n\nWorld')

// Output:
// {
//   type: 'document',
//   children: [
//     { type: 'heading', depth: 1,
//       children: [{ type: 'text', value: 'Hello',
//                    bold: false, italic: false, strikethrough: false }] },
//     { type: 'paragraph',
//       children: [{ type: 'text', value: 'World',
//                    bold: false, italic: false, strikethrough: false }] }
//   ]
// }

import type { Root } from 'mdast'
import { serialize } from 'md-to-rich'
import type { Serializer } from 'md-to-rich'

const PlainText: Serializer<string> = {
  serialize(ast: Root): string {
    function extract(node: any): string {
      if (node.value !== undefined) return node.value
      if (node.children) return node.children.map(extract).join('')
      return ''
    }
    return extract(ast)
  },
}

const result = serialize('# Hello\n\nThis is **bold** text.', PlainText)
// → 'HelloThis is bold text.'