app/node_modules/markdown-it/lib/presets/zero.mjs

// "Zero" preset, with nothing enabled. Useful for manual configuring of simple
// modes. For example, to parse bold/italic only.

export default {
  options: {
    // Enable HTML tags in source
    html: false,

    // Use '/' to close single tags (<br />)
    xhtmlOut: false,

    // Convert '\n' in paragraphs into <br>
    breaks: false,

    // CSS language prefix for fenced blocks
    langPrefix: 'language-',

    // autoconvert URL-like texts to links
    linkify: false,

    // Enable some language-neutral replacements + quotes beautification
    typographer: false,

    // Double + single quotes replacement pairs, when typographer enabled,
    // and smartquotes on. Could be either a String or an Array.
    //
    // For example, you can use '«»„“' for Russian, '„“‚‘' for German,
    // and ['«\xA0', '\xA0»', '‹\xA0', '\xA0›'] for French (including nbsp).
    quotes: '\u201c\u201d\u2018\u2019', /* “”‘’ */

    // Highlighter function. Should return escaped HTML,
    // or '' if the source string is not changed and should be escaped externaly.
    // If result starts with <pre... internal wrapper is skipped.
    //
    // function (/*str, lang*/) { return ''; }
    //
    highlight: null,

    // Internal protection, recursion limit
    maxNesting: 20
  },

  components: {

    core: {
      rules: [
        'normalize',
        'block',
        'inline',
        'text_join'
      ]
    },

    block: {
      rules: [
        'paragraph'
      ]
    },

    inline: {
      rules: [
        'text'
      ],
      rules2: [
        'balance_pairs',
        'fragments_join'
      ]
    }
  }
}