Using text-registers for macros (POC)

[elazarcoh]

This commit is a POC for using plain text registers as Vim macro. Example:

1. Create a new document, and insert "hello". ihello<Esc>

   hello
   

2. Create an empty macro at register a. qaq. This is currently required to get register a to be executable.
3. Insert the requested text macro. oviwc123\<Esc\>A456\<Esc\><Esc>"ayiW. Note: I've escaped \< to note that I want the character '<', and not the '<Esc>' key. (point 4 will make this clearer, I think.)
4. See that register a contains the required text. :reg a
5. Delete this line. dd
6. Execute register a. @a
7. You should get:

   123456
   

[elazarcoh]

The :2d passes, but others are failing now. I'll fix and let you know.

[elazarcoh]

Okay. so I fixed some bugs in the tests. Now all of them passing.

[elazarcoh]

I'll add some more tests, hopefully soon. Do you think anything else is needed, or it's fine like this?

[elazarcoh]

For some reason I cannot make it work with <leader> in reamaps. @J-Fields Do you know why?

[J-Fields]

Nope, I'll try to take a look sometime soon

[elazarcoh]

Fixed it. <leader> as a string is not handled by the handleKeyEvent. It has to be converted to the actual leader key. I added support for it + tests. see expression.ts#L4

[J-Fields]

Hey @elazarcoh what's the status of this - is it ready to merge?

[elazarcoh]

It should be, yes. I couldn't think of any more things that need testing to make sure it doesn't break anything else. If you have an idea for what else should be tested, I can implement it.