smartparens VS crux

Check out smartparens which supports several non-lisp languages including c and js. Learn more here: https://github.com/Fuco1/smartparens

For working with delimiters, you might want to check out Smartparens or Puni. There are many other packages like these, but those are the two I know about.

I think the following packages would fit your wishlist, as it is very similar to mine. As mentioned in the replies, there is (https://github.com/magnars/expand-region.el) and (https://github.com/mickeynp/combobulate). I regularly use (https://github.com/Fuco1/smartparens).

This particular issue has been reported there: https://github.com/Fuco1/smartparens/issues/1017

smart-parens bracket/parens matching is nice

Emacs seems to attract quite a lot of people who want structural code editing. We now have * paredit * smartparens * evil-cleverparens * lispy * symex * combobulate (more?)

Smartparens is trying to bring the paradigm of lispy/paredit to other languages, though the reality is that the non-structured syntax of other languages do not offer the best experience.

If you want to do automatic pairing of Org's markup delimters (which depend on context), I suggest instead trying Smartparens (https://github.com/Fuco1/smartparens), which already supports such pairing.

If not, there is also show-smartparens-mode from the Smartparens package, which is buffer-local.

For those still on 28, crux-rename-file-and-buffer does the same thing (https://github.com/bbatsov/crux). I've been using it for half a decade at this point. This sort of command, that no other code will rely on, was never that important to get into core, and there's some merit in making people create the commands they needed. It's not like with the additions to subr and subr-x libraries (string-replace, string-search etc), which can't come fast enough.

Use vc-rename-file or crux-rename-file-and-buffer from crux

A similar functionality is in the crux package (see crux-delete-file-and-buffer).

How about https://github.com/bbatsov/crux?

Some packages I use for more effective text editing is crux for general text editing (video on crux), paredit for lisp editing and for org-mode:

I'll go with crux. It's not all about text editing, but it's got a lot of commands in dwim-fashion.

I learned the syntax of org-mode in an hour (maybe less), It has many superiorities to markdown (see this excellent essay). Emacs is a fully-featured tool, it's a lifetime of learning, just like all extremely powerful tools, you can see the blogs of many emacs experts like Bozhidar, Protesilaos, Karl Voit (to name a few) learning new features of Emacs quite regularly.