Function flattenChildren

Rewrite-Parser.js:3145–3155

(children)

  }

  function flattenChildren(children) {
    const result = []
    if (Array.isArray(children)) {
      children.forEach(child => {
        result.push(...flattenChildren(child))
      })
    } else if (children) {
      result.push(children)
    }
    return result
  }
  return traverseTree(node, platform)
}