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created 2003 · complexity intermediate · author Chris Smith · version 5.7
Visual selection basicsEdit
You can visually select text, then operate on the selection.
Press v to select a range of text, or V to select whole lines, or Ctrl-V (Ctrl-Q if you use Ctrl-V to paste) to select a block.
After starting the selection, move the cursor with any normal-mode movement commands (such as j to move down, or w to move by a word, or
/ to search).
Marks for the beginning and end of the visual selection are automatically defined:
'< start line `< start character '> end line `> end character
You can press gv to reselect the last visual selection, but the
'> marks defining the beginning and end of the block persist even when the selection highlight has been removed, so
gv is not necessary to repeat a command.
When text is visually selected, press : to enter a command. The command line will automatically enter the range:
You can enter a command such as
s/red/green/g to replace each red with green in all lines of the last visual selection. The command will appear as:
To repeat an Ex command over a previously selected block, use the : history. That is, press : then <Up>, then edit a previous command.
Substituting in a visual selectionEdit
The substitute command (
:s) applies to whole lines, however the
\%V atom will restrict a pattern so that it matches only inside the visual selection. This works with characterwise and blockwise selection (and is not needed with linewise selection).
For example, put the cursor on this line:
music amuse fuse refuse
In normal mode, type
^wvee to visually select "amuse fuse" (
^ goes to first nonblank character,
w moves forward a word,
v enters visual mode,
e moves forward to end of next word). Then press Escape and enter the following command to change all "us" to "az" in the last-selected area within the current line:
The result is:
music amaze faze refuse
For another example, copy the following text into a buffer:
Before block with old and sold. First told abc old sold gold. Another is old, gold but not cold. Last is older, fold not bold. After block with fold and older and bold.
Perform a block selection:
/abcand press Enter to search for 'abc'.
- Press Ctrl-V to start a block selection (press Ctrl-Q if you use Ctrl-V for paste).
eeeto select to the end of "sold".
jjto extend the block selection over three lines.
- Press Escape to clear the selection.
Now we will use a substitute command to replace each "old" with "NEW". The replacement will check each line in the buffer, but will only match within the last visual selection:
The result is:
Before block with old and sold. First told abc NEW sNEW gold. Another is NEW, gNEW but not cold. Last is older, fNEW not bold. After block with fold and older and bold.
The vis.vim plugin is another approach to apply substitutes to a selected region.
Searching with / and ?Edit
In visual mode,
/ and ? will update the visual selection just like any other cursor-movement command (that is, when in visual mode, searching will extend the selection).
In order to actually search within the visual selection, you will need to use the
\%V atom, or use the markers defined by the visual selection with the
\%<'> atoms. This is best done by leaving the visual selection with <Esc> before entering your search. You may want to consider a mapping to automatically leave visual selection and enter the appropriate atoms. For example:
:vnoremap <M-/> <Esc>/\%V
Using this mapping, you can press Alt-/ in order to automatically fill in a "range" for your search just like using an Ex command with
:. To use this, move to the first line of interest and press
V to start line-wise visual selection. Move down (press
j for a line or
} for a paragraph, etc). When you have selected the area you want to search, press Alt-/. The visual selection will be removed, and a search command will start. You will see:
Add what you want to find, then press Enter. For example, you may enter
green and see:
When you press Enter, each occurrence of "green" will be highlighted, but only in the area that you had previously selected.
Here are two further examples that do not use a visual selection. The first command searches only in lines 10 to 20 inclusive. The second searches only between marks
See Search keywords in C function which uses this technique to search within a function in a C program.
Thanks for the tips. Very Helpful.