Replace / Redirect external links with Markdown-it Plugin

Markdown-it Plugin repalce external links with redirect link.

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Install

npm i markdown-it-redirect --save

Example

var redirect = require('markdown-it-redirect');
var md = require('markdown-it')({ html: true}).use(redirect, {  
    // default option  
    redirect: 'https://l.morioh.com/b0a3f595aa?r=',
    regex: {
      link: /((http|https):\/\/(?!([^/]+\.)?morioh.com)[\w\.\/\-=?#]+)/i,
      html: /(<a.*href=)[\"']((http(s)?):\/\/(?!([^/]+\.)?morioh.com)[\w\.\/\-=?#]+)[\"']/gm
    }
  
});

var html = md.render('[https://morioh.com/p/e446a15a1022](https://morioh.com/p/e446a15a1022)\
[https://learnstartup.net/p/rJHeJJdk6l](https://learnstartup.net/p/rJHeJJdk6l)\
<a href="https://morioh.com/p/e446a15a1022">https://morioh.com/p/e446a15a1022</a>\
<a href="https://learnstartup.net/p/rJHeJJdk6l">https://learnstartup.net/p/rJHeJJdk6l</a>');

// result

<p><a href="https://morioh.com/p/e446a15a1022">https://morioh.com/p/e446a15a1022</a>
<a href="https://l.morioh.com/b0a3f595aa?r=https://learnstartup.net/p/rJHeJJdk6l" rel="nofollow" target="_blank">https://learnstartup.net/p/rJHeJJdk6l</a>
<a href="https://morioh.com/p/e446a15a1022">https://morioh.com/p/e446a15a1022</a>
<a href="https://l.morioh.com/b0a3f595aa?r=https://learnstartup.net/p/rJHeJJdk6l" rel="nofollow" target="_blank">https://learnstartup.net/p/rJHeJJdk6l</a></p>