Function stringify

packages/ast/stringify/index.js:3–91

(tree)

const walk = require('../walk');

function stringify(tree) {
  let output = '';

  walk(tree, (node) => {
    if (node.used) {
      return;
    }
    node.used = true;
    if (node.type === 'root') {
      return;
    }
    if (node.type === 'bold') {
      output += '*';
      node.children.forEach((child) => {
        output += stringify(child);
      });
      output += '*';
    }

    if (node.type === 'italic') {
      output += '_';
      node.children.forEach((child) => {
        output += stringify(child);
      });
      output += '_';
    }

    if (node.type === 'strike') {
      output += '~';
      node.children.forEach((child) => {
        output += stringify(child);
      });
      output += '~';
    }

    if (node.type === 'code') {
      output += node.source;
    }

    if (node.type === 'pre') {
      output += node.source;
    }

    if (node.type === 'quote') {
      output += '> ';
      node.children.forEach((child) => {
        output += stringify(child);
      });
    }

    if (node.type === 'header') {
      output += `${'#'.repeat(node.depth)} `;
      node.children.forEach((child) => {
        output += stringify(child);
      });
    }

    if (node.type === 'list') {