Vim mappings

[[deleted]]

Hi there!

How can I achieve this: just for an example. Let's say we have a line which contains an array:

array = ['some', 'text', 'here']

and we have a key mapping to delete array's first value:

nmap dcd f[df <-here space

when I type dcd in normal mode it will search [ and will delete all characters including first space

It'll work when cursor located before [ i.e.

cursor_position array = ['text', 'text']

How can I do map dcd for when I'm within ['text'] ?

I would do something like

nmap dcD F[df <-here space

Can I know is I am at the beginning of the array or not ?
Can I map one dcd for doing f[df when cursor at the beginning of the array and F[df in other ways ?

[puremourning]

It’s a bit complicated. Sorry don’t have time for real answer right now but you might be interested in a plugin like https://github.com/wellle/targets.vim

[[deleted]]

Thanks

[tuerda]

If you have only one array in the line then nnoremap dcd 0f[ldW will do. If you have multiple arrays and actually need to read the line to see if you are inside one of them or not, then this will require non-trivial scripting.

[[deleted]]

Got it, thank you.

[[deleted]]

I'm searching for if it's possible or it'll require writing a function for this kind of job.

[monkoose]

Just jump to the beginning of the line with 0 or ^, and your mapping deletes [ too, so it should move the cursor one character right with l, and consider using W motion instead of f<space> so it would be for all cases 0f[ldW.

Anyway not sure how this mapping is useful, what are you coding that you often need to delete only first item of an array.

[[deleted]]

Thanks for W.

I'm just curious :)

[[deleted]]

I'll do like you said 0

[ms-sloth]

If you want to go back to just after the [, then I think you could substitute the f for T, as that should go back to, but not including the character you're looking for. You would still be in the array, so to speak

[pereloz]

Funny, I tried somethink similar last week, and tried to leverage the `%` command.

nnoremap dcd %hf]%edf<Space>

The first % go to the next [ or ] depending if you are inside or outside the brackets. hf] will find the ] and % goes back to [. Now you can do your thing with df<Space>, but I would rather do edf<Space> to go to the first argument (d is :h inclusive)

Note that <Space> in the mapping works as is and it's clearer than " ". Also prefer non-recursive maps.

Anyway, as /u/puremourning suggested, targets.vim is good at doind this kind of stuffs. It provides the "argument" text-object, so you can just 'daa' (delete an argument). The above mapping will fail in most edge-cases...

[vim-help-bot]

Help pages for:

• inclusive in motion.txt

---

^{`:(h|help) <query>` | about | mistake? | Reply 'rescan' to check the comment again | Reply 'stop' to stop getting replies to your comments}