从reddit评论中删除链接 [英] Removing the links from reddit comments

问题描述

我正在阅读reddit帖子下的评论.

I am reading the comments from under reddit posts.

有些评论包含链接，我希望删除它们.

Some of the comments have links, that I would like to get rid of.

示例(输入):

This is a [pic](https://i.imgur.com/yKmUMJD.jpg), [this](http://www.google.com) is a link

我希望字符串看起来(输出):

How I would like the string to look (output):

这是一张图片，这是一个链接

This is a pic, this is a link

我使用了此，以下代码可以解决问题:

I used this, and the following line does the trick:

item.data.body.replace(/ *\([^)]*\) */g, "").replace('[', '').replace(']', '');

我想知道如何在正则表达式中添加http，因此它也不会删除普通"括号中的文本.

I would like to know how can I add http to the regex, so it will not remove the "normal" bracket text as well.

谢谢

推荐答案

我看到您之前发布了一个类似的问题.现在，您还发布了您尝试过的内容……看起来您正在为此而苦苦挣扎.

I saw you had posted a similar question earlier. Now you have also posted what you have tried... looks like you are struggling with this one.

这就是我要做的:

const str = "This is a [pic](https://i.imgur.com/yKmUMJD.jpg), [this](http://www.google.com) is a link";

const tags = str.match(/\[.*?(?=\]\((.*?)\))/g).map(x => x.substring(1));
const newString = str.replace(/\[.*?\]\(.*?\)/g, () => {
  return tags.shift();
});

console.log(newString)

第一步是查找所有标记的文本.换句话说，所有内容都包裹在[]中.在上面的示例中，这将生成数组[pic, this].

First step is to find all of the marked up text. In other words, everything wrapped in []. In your example above, this will yield the array [pic, this].

然后，我们需要用上面的每个匹配项替换整个网址bbcode(即[xxx](http://url)).我们将数组视为一个队列，并在使用完后使用shift()从数组中删除每个结果.

Then, we need to replace the whole url bbcode (i.e the [xxx](http://url)) with each of our matches above. We treat our array as a queue, and remove each result from the array with shift() once we've used it.

当然，此解决方案不是万无一失的.它不能处理任何()[]字符都是标记或URL本身 的一部分的极端情况.

Of course, this solution isn't fool-proof. It won't handle the corner-case in which any of the characters ()[] are part of either the markup or the URL itself.

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