p.e. I have a block of text selected (using Ctrl-V) and want to extend it in a vimscript to a new location p.e. 30 lines below
Does anyone know how to do this?
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2 Answers
You can use the markers '< and '> to move to the beginning and end respectively of the most recent visual selection. So a simple function such as
EDITED to use gv and a jump variable.
function! ExtendVisual(jump)
execute "normal! gv" . a:jump . "j"
endfunction
vnoremap <silent> <leader>e :call ExtendVisual(30)<CR>
will let you extend the current visual:q region by 30 lines using \e.
8 Comments
Reman
Thanks. I created a variable "jump" which indicates how many lines the selection has to go down. What would be the function with my value "jump" inside? `normal! gv"jump"j ??
Prince Goulash
If you want to add a variable you need to explicity execute the "normal" comand, so the line would become:
execute "normal! '<V'>" . jump . "j". If jump is an argument supplied to the function, then you need to use a:jump when you use it.Reman
Btw your function extend the selection as a line selection. What would it be in case of block selection?
ZyX
This function is 1. Changing type of visual selection. 2. Does not work when called for the second time without quiting selection. 3. Quits visual mode when called for multiline selection with even number of lines.
ZyX
4. Extends 30 lines down from the first line of selection, not from the last. 5. I guess it relies on the (bug?) that
'> marker is not moved during the selection: : in visual mode produces :'<,'> and thus for 3-line selection it is called three times. |
It is better expressed with <expr> mappings:
vnoremap <expr> \e g:jump."j"
With a function call:
function Jump()
" Do something (modifying text, switching buffers and
" something other is forbidden, see :h map-<expr>)
return jump."j"
endfunction
vnoremap <expr> \e Jump()
4 Comments
Reman
thank you. Nice solution. However maybe difficult in my case...I declare the jump value in a function.
ZyX
@Remonn What is the problem? You can put a function call there. See update.
Reman
In my function I calculate jump p.e. jump = 30. How would you put that in a function call?
ZyX
@Remonn You can call a function that calculates jump. I can't say more without seeing this function.