It would be great to be able to append some HTML after the ellipsis. In this example, there's a link to continue reading.

I am doing a call on a text where the result is cut off way too short and also the three dots at the end are missing:
The call
truncate(value, 330);

The text given to the function
<a href=\"https://www.example.org\">hello test</a>\n

The result of the call is
<a href=\"https://www.example.org/

Since the given string is only 65 characters long, I expect it to be not cut off at all.
Is there anything I can do to make it work or is it a bug?

Hi there,

I noticed that there's no maximum to the size of a URL that could be at the end of a string someone intends to truncate:

So for example:

const truncate = require('truncate')
input = "hello http://aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
truncate(input, 7)
# 'hello http://aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'

As far as I can tell, if someone fed a huge URL to any of the popular libraries that depend on truncate, nothing too bad would happen, but it also looks like they don't expect this URL-preserving-at-all-costs behavior:

• metascraper truncates <meta> tag descriptions to 300 characters, which rarely/never contain URLs:
  https://github.com/microlinkhq/metascraper/blob/bc18f7e62499d5328843f589b772d5d0c4d767be/packages/metascraper-helpers/index.js#L210-L215
• forma36 truncates "titles" (that rarely have URLs) for display purposes: https://github.com/contentful/forma-36/blob/7a6a8ccffd23f12bf6f05e213b829b7bc73ce09f/packages/forma-36-react-components/src/components/Card/EntryCard/EntryCard.tsx#L108-L115
• datocms-client truncates "progress" text for display purposes: https://github.com/datocms/js-datocms-client/blob/8df86e5cfd160922fc80c7dd6810fe853265dd2e/src/wpImport/utils/progress.js#L22-L28
• strong-data-uri truncates invalid data URIs to display in error messages: https://github.com/strongloop/strong-data-uri/blob/841e3850572f0ddafc2f6f98877fb8271039e088/index.js#L44-L46

I understand there's not really an RFC-defined maximum URL size, but could we implement one as a precaution? It could be something huge like 32k or something like 10 times the maxLength?

Alternatively, the URL-preserving feature could be moved into an option and disabled by default. Would be a breaking change for people other than those libraries I mentioned, but potentially safer.

Does not work (breaks the string) with string that contains ANSI escape codes (e.g. colours in the terminal) or fullwidth characters.

should be …, not ...

Would you like to add types to the project? We whipped up these types and would be very happy if you included them in your library!

Also it looks like the keepImageTag option is documented but not implemented?

declare module 'truncate' {
	interface TruncateOptions {
		keepImageTag: boolean
		ellipsis?: string
	}

	export default function truncate(string: string, maxLength: number, options?: TruncateOptions): string
}