Add svelte compatibility

[mathieuarthur]

I checked that you seems to accept all languages but your extensions not working with svelte we need to change manually the parser.js from the /out folder like this : https://gist.github.com/armchair-traveller/d2eb2f4b65c8f97ebe1b2abaa2283142

[aaron-bond]

The all languages version is pending release (3.0.0) but hasn't been published yet. I'm looking at svelte support at the minute, but the issue I have is that there might be many comment formats within the one file. Do you know what changes specifically from that parser you linked are useful here? Also, which comment formats are you looking for here? JS / HTML / CSS / etc. ?

[mathieuarthur]

we are looking for the three type of comment in the same file, JS, HTML and CSS

The link i gived to you is used as replacement as your parser.js and is a good workaround since it work for me.

And tbh idk what is usefull in this file since i didn't develop it, I just know that it's working.

But just looking a bit I would say that it's this :

case "svelte":
        this.setCommentFormat("<!--|//|/* ", "<!--|/*", "-->|*/");
        this.highlightJSDoc = true;

but this workaround have still a bug, we still can't use bettercomments with this comment format : "//"

It only work for multilines in js. Work for any other type of comments for html and css