How to declare embeddedLanguages via extension point

[jabby]

Hello,

I have a little question about embedded languages in a grammar. I work on the support of vuejs in Eclipse Wild Web Developer and I checked on vetur project (vue language server). In the package.json of the vscode client, developers declare some embedded languages for vue.
I don't know how to reproduce via extension point.

See https://github.com/vuejs/vetur/blob/master/package.json#L98-L115

[angelozerr]

@jabinby I think I have not implemented this feature. I don't remember what embedded languages provides as feature.