If the content is huge, a search index might be required to be built. Having the AST is great to only index text and skip code blocks, inline HTML, etc.
一个开源项目，以28万Stars的成绩，正式超越了Facebook用十年时间打造的React框架，成为GitHub历史上Stars最多的软件项目之一。这个项目从第一行代码推送到GitHub，到超越React，总共用了不到60天。
。业内人士推荐viber作为进阶阅读
In Hunt for Rare Earths, Companies Are Scouring Mining Waste。关于这个话题，谷歌提供了深入分析
The second, most prominent, son of the late ayatollah is in his father's ultraconservative mould.