with "---" in the main.c window.
See the "<- deleted line" marker in the picture.  These characters are not
really there.  They just fill up main.c, so that it displays the same number
of lines as the other window.


THE FOLD COLUMN

Each window has a column on the left with a slightly different background.  In
the picture above these are indicated with "VV".  You notice there is a plus
character there, in front of each closed fold.  Move the mouse pointer to that
plus and click the left button.  The fold will open, and you can see the text
that it contains.
   The fold column contains a minus sign for an open fold.  If you click on
this -, the fold will close.
   Obviously, this only works when you have a working mouse.  You can also use
"zo" to open a fold and "zc" to close it.


DIFFING IN VIM

Another way to start in diff mode can be done from inside Vim.  Edit the
"main.c" file, then make a split and show the differences: >

	:edit main.c
	:vertical diffsplit main.c~

The ":vertical" command is used to make the window split vertically.  If you
omit this, you will get a horizontal split.

If you have a patch or diff file, you can use the third way to start diff
mode.  First edit the file to which the patch applies.  Then tell Vim the name
of the patch file: >

	:edit main.c
	:vertical diffpatch main.c.diff

WARNING: The patch file must contain only one patch, for the file you are
editing.  Otherwise you will get a lot of error messages, and some files might
be patched unexpectedly.
   The patching will only be done to the copy of the file in Vim.  The file on
your harddisk will remain unmodified (until you decide to write the file).


SCROLL BINDING

When the files have more changes, you can scroll in the usual way.  Vim will
try to keep both the windows start at the same position, so you can easily see
the differences side by side.
   When you don't want this for a moment, use this command: >

	:set noscrollbind


JUMPING TO CHANGES

When you have disabled folding in some way, it may be difficult to find the
changes.  Use this command to jump forward to the next change: >

	]c

To go the other way use: >

	[c

Prepended a count to jump further away.


REMOVING CHANGES

You can move text from one window to the other.  This either removes
differences or adds new ones.  Vim doesn't keep the highlighting updated in
all situations.  To update it use this command: >

	:diffupdate

To remove a difference, you can move the text in a highlighted block from one
window to another.  Take the "main.c" and "main.c~" example above.  Move the
cursor to the left window, on the line that was deleted in the other window.
Now type this command: >

	dp

The change will be removed by putting the text of the current window in the
other window.  "dp" stands for "diff put".
   You can also do it the other way around.  Move the cursor to the right
window, to the line where "changed" was inserted.  Now type this command: >

	do

The change will now be removed by getting the text from the other window.
Since there are no changes left now, Vim puts all text in a closed fold.
"do" stands for "diff obtain".  "dg" would have been better, but that already
has a different meaning ("dgg" deletes from the cursor until the first line).

For details about diff mode, see |diff-mode|.

==============================================================================
*08.8*	Various

The 'laststatus' option can be used to specify when the last window has a
statusline:

	0	never
	1	only when there are split windows (the default)
	2	always
	3	have a global statusline at the bottom instead of one for each
		window

Many commands that edit another file have a variant that splits the window.