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-rw-r--r--runtime/doc/autocmd.txt5
-rw-r--r--runtime/doc/diff.txt9
-rw-r--r--runtime/doc/options.txt32
3 files changed, 37 insertions, 9 deletions
diff --git a/runtime/doc/autocmd.txt b/runtime/doc/autocmd.txt
index 4702656c41..c34dbaaf60 100644
--- a/runtime/doc/autocmd.txt
+++ b/runtime/doc/autocmd.txt
@@ -628,6 +628,11 @@ CursorMoved After the cursor was moved in Normal or Visual
CursorMovedI After the cursor was moved in Insert mode.
Not triggered when the popup menu is visible.
Otherwise the same as CursorMoved.
+ *DiffUpdated*
+DiffUpdated After diffs have been updated. Depending on
+ what kind of diff is being used (internal or
+ external) this can be triggered on every
+ change or when doing |:diffupdate|.
*DirChanged*
DirChanged After the |current-directory| was changed.
Sets these |v:event| keys:
diff --git a/runtime/doc/diff.txt b/runtime/doc/diff.txt
index 766240dfb0..ab002b4dcb 100644
--- a/runtime/doc/diff.txt
+++ b/runtime/doc/diff.txt
@@ -27,7 +27,9 @@ The second and following arguments may also be a directory name. Vim will
then append the file name of the first argument to the directory name to find
the file.
-This only works when a standard "diff" command is available. See 'diffexpr'.
+By default an internal diff library will be used. When 'diffopt' or
+'diffexpr' has been set an external "diff" command will be used. This only
+works when such a diff program is available.
Diffs are local to the current tab page |tab-page|. You can't see diffs with
a window in another tab page. This does make it possible to have several
@@ -332,8 +334,9 @@ between file1 and file2: >
The ">" is replaced with the value of 'shellredir'.
-The output of "diff" must be a normal "ed" style diff. Do NOT use a context
-diff. This example explains the format that Vim expects: >
+The output of "diff" must be a normal "ed" style diff or a unified diff. Do
+NOT use a context diff. This example explains the format that Vim expects for
+the "ed" style diff: >
1a2
> bbb
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 29d9a60aa2..9aaae6a527 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1859,13 +1859,13 @@ A jump table for the options with a short description can be found at |Q_op|.
*'dex'* *'diffexpr'*
'diffexpr' 'dex' string (default "")
global
- Expression which is evaluated to obtain an ed-style diff file from two
- versions of a file. See |diff-diffexpr|.
+ Expression which is evaluated to obtain a diff file (either ed-style
+ or unified-style) from two versions of a file. See |diff-diffexpr|.
This option cannot be set from a |modeline| or in the |sandbox|, for
security reasons.
*'dip'* *'diffopt'*
-'diffopt' 'dip' string (default "filler")
+'diffopt' 'dip' string (default "internal,filler")
global
Option settings for diff mode. It can consist of the following items.
All are optional. Items must be separated by a comma.
@@ -1925,11 +1925,31 @@ A jump table for the options with a short description can be found at |Q_op|.
foldcolumn:{n} Set the 'foldcolumn' option to {n} when
starting diff mode. Without this 2 is used.
- Examples: >
+ internal Use the internal diff library. This is
+ ignored when 'diffexpr' is set. *E960*
+ When running out of memory when writing a
+ buffer this item will be ignored for diffs
+ involving that buffer. Set the 'verbose'
+ option to see when this happens.
+
+ indent-heuristic
+ Use the indent heuristic for the internal
+ diff library.
+
+ algorithm:{text} Use the specified diff algorithm with the
+ internal diff engine. Currently supported
+ algorithms are:
+ myers the default algorithm
+ minimal spend extra time to generate the
+ smallest possible diff
+ patience patience diff algorithm
+ histogram histogram diff algorithm
- :set diffopt=filler,context:4
+ Examples: >
+ :set diffopt=internal,filler,context:4
:set diffopt=
- :set diffopt=filler,foldcolumn:3
+ :set diffopt=internal,filler,foldcolumn:3
+ :set diffopt-=internal " do NOT use the internal diff parser
<
*'digraph'* *'dg'* *'nodigraph'* *'nodg'*
'digraph' 'dg' boolean (default off)