Newbie question about mapping...

[Sonny Chee]

Hey Guys,

I am attempting to create an insert mapping that (when ctrl-d is pressed) will convert the current word to uppercase. I'm not sure why it doesn't work...

inoremap <c-d> <esc>viwU<esc>i

[Gary Johnson]

It works for me. It works better, though, using 'gi' instead of
'i' so that the cursor position is restored to the place where the
mapping was executed:

:inoremap <c-d> <esc>viwU<esc>gi

How does it not work for you? "[I]t doesn't work" is not much to go
on.

Regards,
Gary

[Sonny]

Hey Gary,

Thank you for your response.

I'm not sure what the deal is... but the mapping is working after I exited and then re-started vim....

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Sonny.
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Be true to your work, your word, and your friend. Henry David Thoreau.

[Sonny]

Actually, I think I know what was causing the issue.... While in INSERT mode, I had moved the cursor to the first letter in the word and then pressed ctrl-d.  Going from insert to normal mode causes the cursor to move to the left, since there was no longer a word beneath the cursor, nothing was upper-cased....

Does anyone know how I can prevent the cursor from moving when I go from INSERT to normal mode... or revise my mapping so that it works regardless of where the cursor is within the word when ctrl-d is pressed?

[Paul Isambert]

> Does anyone know how I can prevent the cursor from moving when I go from
> INSERT to normal mode...

That’s Vim’s usual behavior.

> or revise my mapping so that it works regardless
> of where the cursor is within the word when ctrl-d is pressed?

You can use <C-O> instead of going in full normal mode:

inoremap <C-D> <C-O>gUiw

The problem is that you will end up at the beginning of the word, no
matter where you started. Perhaps that’s not a problem?

Best,
Paul

[Youen Lansade]

You could start the command by inserting a character and delete it after you get back in insert mode:

 

  :inoremap <c-d> _<esc>viwU<esc>gi<bs>

 

Also, the second esc is useless since pressing U should take you back to normal mode:

 

  :inoremap <c-d> _<esc>viwUgi<bs>

 

And, although it's not wrong to go into visual mode to set some text uppercase, it's interesting to know vim has normal mode commands to change the case of letters. For example, to set the current word to uppercase, you could use gUiw. For more informations: :h case

 

Youen

[Sonny]

Thanks guys, particularly Youen.  Those were helpful. 

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