HipChat

The goal of this coding kata is to write code to parse HipChat messages. Atlassian’s infamous instant messaging app handles mentions, emoticons, and links:

1. @mentions – A way to mention a user. Always starts with an ‘@’ and ends when hitting a non-word character
2. Emoticons – For this exercise, you only need to consider ‘custom’ emoticons which are ASCII strings, no longer than 15 characters, contained in parenthesis. You can assume that anything matching this format is an emoticon
3. Links – Any URLs contained in the message, along with the page’s title

For example, the message:

@bob @john (success) sweet feature
https://www.google.com/

…should produce the following JSON:

{
  "mentions": [
    "bob",
    "john"
  ],
  "emoticons": [
    "success"
  ],
  "links": [
    {
      "url": "https://www.google.com/",
      "title": "Google"
    }
  ]
}