lib/index.js
function after(parent, index) {
  var siblings = parent.children
  var sibling = siblings[++index]
  var other

  if (is('WhiteSpaceNode', sibling)) {
    sibling = siblings[++index]

    if (is('PunctuationNode', sibling) && punctuation.test(toString(sibling))) {
      sibling = siblings[++index]
    }

    if (is('WordNode', sibling)) {
      other = sibling
    }
  }

  return other
}
function after(parent, index) {
  var siblings = parent.children
  var sibling = siblings[++index]
  var other

  if (is('WhiteSpaceNode', sibling)) {
    sibling = siblings[++index]

    if (is('PunctuationNode', sibling) && punctuation.test(toString(sibling))) {
      sibling = siblings[++index]
    }

    if (is('WordNode', sibling)) {
      other = sibling
    }
  }

  return other
}
Get the next word.