使用 NodeJS 从 RSS 提要中提取 CDATA答案

【问题标题】：Extract CDATA from RSS feed using NodeJS使用 NodeJS 从 RSS 提要中提取 CDATA
【发布时间】：2019-02-15 08:06:08
【问题描述】：

我正在使用 feedparser 2.2.9 版来解析提要： “https://www.veganlifemag.com/feed/”。

关于 rss 提要的描述标签，它有 HTML (CDATA) 内容和包含我需要提取的内容的标签。我想知道是否有办法提取 CDATA 中的内容或特定内容。

提前致谢，

杰瑞

RSS 提要示例

<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
  <channel>
<title>VegNews.com (News)</title>
<description></description>
<link>https://vegnews.com/news</link>
<language>en</language>
<item>
  <title>London Fashion Week Will Be Fur-Free This Year for the First Time</title>
  <category>News</category>
  <pubDate>Mon, 10 Sep 2018 01:50:00 -0700</pubDate>
  <link>https://vegnews.com/2018/9/london-fashion-week-will-be-fur-free-this-year-for-the-first-time</link>
  <guid>https://vegnews.com/2018/9/london-fashion-week-will-be-fur-free-this-year-for-the-first-time</guid>
  <description>
    <![CDATA[<img src="https://vegnews.com/media/W1siZiIsIjEyOTE1L1ZlZ05ld3MuRmFzaGlvbkxvbmRvbi5wbmciXSxbInAiLCJ0aHVtYiIsIjgwMHg0NzMjIix7ImZvcm1hdCI6ImpwZyJ9XSxbInAiLCJvcHRpbWl6ZSJdXQ/VegNews.FashionLondon.png?sha=ec3755007e36522e" /><p>Anticipated event London Fashion Week (LFW) kicks off September 14, this year with no fur in sight. While LFW did not impose a ban on fur, every designer that will present their collections this year has adopted a fur-free policy, including last-minute holdout Burberry. After more than a decade of pressure from animal-rights organizations, including <a href="http://www.hsi.org/" target="_blank" rel="noopener">Humane Society International UK</a> and <a href="https://www.peta.org/" target="_blank" rel="noopener">People for the Ethical Treatment of Animals</a>, Burberry announced this month that it would no longer use fur in its collections and appointed Riccardo Tisci as its new creative director to phase out any remaining fur items. &ldquo;I don&rsquo;t think it is compatible with modern luxury and with the environment in which we live, and Riccardo has a very strong view as well on this,&rdquo; LFW CEO Marco Gobbetti told <a href="https://www.businessoffashion.com/articles/professional/burberry-stops-destroying-product-and-bans-real-fur" target="_blank" rel="noopener"><em>Business of Fashion</em></a>. &ldquo;It&rsquo;s part of what Burberry is today.&rdquo; Similarly, animal fur is falling out of favor in the United States. Earlier this year, American designer <a href="https://vegnews.com/2018/3/dkny-and-donna-karan-go-fur-free" target="_blank" rel="noopener">Donna Karan</a> pledged to eliminate the material from her future collections, and the city of <a href="https://vegnews.com/2018/3/san-francisco-bans-fur-sales" target="_blank" rel="noopener">San Francisco</a> joined <a href="https://vegnews.com/2013/9/west-hollywood-says-no-to-real-fur-in-fashion" target="_blank" rel="noopener">West Hollywood</a> and <a href="https://vegnews.com/2017/4/berkeley-prohibits-fur-sales-citywide" target="_blank" rel="noopener">Berkeley</a> in banning fur sales within city limits.</p>]]>
  </description>
</item>

【问题讨论】：

标签： javascript node.js parsing rss cdata

【解决方案1】：

CDATA 仅表示“以纯文本处理此内容”，因此它忽略了通常在 XML 中具有特殊含义的字符的特殊含义（例如 < 表示“标记的开始”）。

描述的值是 HTML 的片段。如果您想从中提取特定内容，请通过 HTML 解析器运行它。

【讨论】：

谢谢@Quentin，我采纳了您的建议，使用 html-parser 和 jsdom 解析提要以提取我想要的信息。