How to add space on multiple lines when pressing spacebar (without extra configuration)?

Question

I tried visual block, but visual block only allow to highlight or delete characters on multiple lines.

Is there any function that allows to add space before the first character of multiple lines when I press spacebar?

Answer 1

You were right about visual mode, but you should have tried blockwise visual mode by pressing <C-V>.

In blockwise visual mode you can select the lines and columns of your selection. When you selected the desired lines of the block you want, you can press I (that is Shift + i), you are now on insert mode, where you can add space in front of your line.

When you press <ESC> the new spaces will be added to all lines of your selection.

ref : http://usevim.com/2012/05/18/vim101-visual-mode-2/

Answer 2

To add a space at the beginning of mutliple lines you also can use the normal command. Let's say you have the following file:

" foo
" bar
buzz
fizz

You can select the lines you want to add a space on and use the command

:'<,'> norm I 

Note the space character after the I. The command means:

:'<,'>      For the line I selected
norm        Execute the following sequence of keystrokes as if I was in normal mode
I           Insert at the beginning of the line the following characters
[space]     A space

I you select the 3 first lines you'll get:

 " foo
 " bar
 buzz
fizz

---

For even more power you can combine the normal command with the global command to apply the transformation only on lines matching a pattern. If you want to add a space in front of the commented lines in our previous example you can use:

:g/"/norm I 

to apply norm I on lines containing ". Note the space character after the I

Which will give you:

 " foo
 " bar
buzz
fizz