CODEWITHSUNDEEP
vim
JongHyeon Yeo
JongHyeon Yeo

Reputation: 1039

Is there a vim command that swap two words with crossing one operator?

For example, Guess I have this block.

if( first > second)
{
}

And I want to swap these words with crossing one operator.

if( second > first)
{
}

How to do with vim command naturally?

Upvotes: 7

Views: 4019

Answers (5)

Mega Bang
Mega Bang

Reputation: 131

" Swap two words
nmap <silent> gw :s/\(\%#\w\+\)\(\_W\+\)\(\w\+\)/\3\2\1/<CR>`'

  1. Place your cursor at 1st letter f of first
    if( first > second)

  2. then press gw to swap between first and second

You will get your desired output if( second > first)

Upvotes: 1

builder-7000
builder-7000

Reputation: 7657

This solution uses the following function: 

function! Swap()
  normal di)
  let a=split(@")
  let @b=a[2]." ".a[1]." ".a[0]
  normal %"bp
endfunction

That can be mapped to gs, for example:

nnoremap <silent> gs :call Swap()<cr>

A drawback of this approach is that it is more involved than solutions based on mappigs. Its advantage is that it works by placing the cursor anywhere inside the parenthesis (...).

Upvotes: 1

SergioAraujo
SergioAraujo

Reputation: 11840

I have vim-exchange plugin that allows me to change words in this way.

At the first word press cxiw then jump to the second word and press .

Upvotes: 6

romainl
romainl

Reputation: 196926

If you wanted to do that manually you could do the following (with the cursor on first):

yiw    yank current word
ww     move cursor to 'second'
viw    visually select current word
p      put from unnamed register (selected word goes to unnamed register)
bbb    move cursor back to 'first'
viw    visually select current word
p      put from unnamed register

which is relatively intuitive but, admittedly, quite involving.

You could probably map that to some easy to type key-combination:

nnoremap <key> yiwwwviwpbbbviwp

but you may end up having to fight against corner case after corner case.

Or you could put this snippet (found here) in your vimrc and simply press <key1> to swap the current "word" with the previous and <key2> to swap the current "word" with the next:

nnoremap <key1>  "_yiw?\v\w+\_W+%#<CR>:s/\v(%#\w+)(\_W+)(\w+)/\3\2\1/<CR><C-o><C-l>
nnoremap <key2> "_yiw:s/\v(%#\w+)(\_W+)(\w+)/\3\2\1/<CR><C-o>/\v\w+\_W+<CR><C-l>

Upvotes: 7

n.r.
n.r.

Reputation: 1900

Pending a more natural way to do it, how about this?

:map <f7> <esc>dbwPwdwbbPl<esc>

Place the cursor on < and press F7.

Upvotes: 1

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