Suppose I have the piece of text below with the cursor staying at the first A currently,
AAAA
BBB
CC
D
How can I add spaces in
You can select the lines in visual mode, and type >. This assumes that you've set your tabs up to insert spaces, e.g.:
setl expandtab
setl shiftwidth=4
setl tabstop=4
(replace 4 with your preference in indentation)
If the lines form a paragraph, >ap in normal mode will shift the whole paragraph above and below the current position.
I'd use >}.
Where...
Hope this helps.
Let's assume you want to shift a block of code:
:set shiftwidth=1, default is 8.Ctrl+v in appropriate place and move cursor up k or down j to select some area.> to shift the block and . to repeat the action until desired position (if cursor is missed, turn back with h or b).I would do like Nigu. Another solution is to use :normal:
<S-v> to enter VISUAL-LINE mode3j or jjj or /D<CR> to select the lines:norm I<Space><Space>, the correct range ('<,'>) being inserted automatically:normal is probably a bit overkill for this specific case but sometimes you may want to perform a bunch of complex operations on a range of lines.
When on the first A, I'd go in block visual mode ctrl-v, select the lines you want to modify, press I (insert mode with capital i), and apply any changes I want for the first line. Leaving visual mode esc will apply all changes on the first line to all lines.
Probably not the most efficient on number of key-strokes, but gives you all the freedom you want before leaving visual mode. I don't like it when I have to specify by hand the line and column range in a regex command.
I'd use :%s/^/ /
You could also specify a range of lines :10,15s/^/ /
Or a relative range :.,+5s/^/ /
Or use regular expressions for the locations :/A/,/D/>.
For copying code to paste on SO, I usually use sed from the terminal sed 's/^/ /' filename
I just learned a new trick for this. You enter visual mode v, select the region (with regular movement commands), then hit : which gives you this:
:'<,'>
ready for you to type just the command part of the above commands, the marks '< and '> being automatically set to the bounds of the visual selection.
To select and indent the current paragraph:
vip>
or
vip:>
followed by enter.
Edit:
As requested in the comments, you can also add spaces to the middle of a line using a regex quantifier \{n} on the any meta-character ..
:%s/^.\{14}/& /
This adds a space 14 chars from the left on each line. Of course % could be replaced by any of the above options for specifying the range of an ex command.