Here's what I would like:
var xyz = (
Here are my current indenation rules, could anyone help me get what
looking for, or have I been looking in the wrong place?
What you're actually looking for is a snippet, not indentation regex.
bundle, currently in the Review section of the repository. It adds
scopes for the various braces that makes this much simpler to
implement (among many other reasons for using it).
The basic pattern is the same as the snippet in the HTML bundle named
"Special: Return Inside Empty Open / Close Tags". It relies on the
meta.scope.between-tag-pair selector, which is defined in the language
same, you'll just need to adjust the scope selector according to the
I've attached my own take on it, which also applies to array literals
(  ).
Hope this helps,