Add object selection (textobjects)

[sudormrfbin]

Closes #213.

Uses ma (match around) and mi (match inside).

TODO

• Objects
  • Word - maw, miw
  • Brackets (surround) - ma(, mi", 2ma[, etc
• Docs
  • Usage
  • Keymaps

Future Work

• Treesitter based objects (function, class, parameter, etc) - Add treesitter textobjects #728
• Paragraph object
• WORD object

[pickfire]

While at this can you try to add ]p?

[sudormrfbin]

@pickfire

While at this can you try to add ]p?

I assume you mean move to next paragraph (like } in vim; ]p in vim is paste with indent); I was thinking of adding similar motions for functions and classes based on treesitter. Will add it to my todo list 👍🏾

[pickfire]

]p in kakoune and } in vim

[archseer]

Feel free to land this without paragraph, etc. Those can come in a follow-up.

[sudormrfbin]

Feel free to land this without paragraph, etc. Those can come in a follow-up.

I think that's better for now. I'll add the tests for the new word movements tomorrow and complete it :)

[PabloMansanet]

Can't find anything obviously wrong with this on a relatively shallow read. It looks good to me, so as longs as the test coverage is good and it's been manually tested, no complaints 👍

[cessen]

All-in-all this looks good to me. Not totally sure how I feel about the keybindings, but that's just bike-shedding. The functionality itself is good, and keybindings are probably best left to a holistic discussion of Helix's keymap.

[archseer]

Great work @sudormrfbin! 🎉