b18c7bf702
The left shift operator ('<') didn't support undo at all; right
shift ('>') required changes to be undone separately for each line.
Allow both types of shift to be undone as a single operation.
Also, neither traditional vi nor vim yank the lines being shifted by
the '<' and '>' commands, so remove that call to yank_delete();
When a repetition count was specified for the '~', 'x', 'X' or 's'
commands the changes had to be undone one character at a time.
Allow undo as a single operation (though the delete and change
parts of the 's' command still have to be undone separately).
function old new delta
undo_push_insert 37 40 +3
do_cmd 4695 4663 -32
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 3/-32) Total: -29 bytes
v2: Don't break build when FEATURE_VI_UNDO is disabled. Don't reset
'undo_del' too early in '~' handling code. Code shrink '~'.
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
||
|---|---|---|
| .. | ||
| awk.c | ||
| cmp.c | ||
| Config.src | ||
| diff.c | ||
| ed.c | ||
| Kbuild.src | ||
| patch_bbox.c | ||
| patch_toybox.c | ||
| patch.c | ||
| sed1line.txt | ||
| sed_summary.htm | ||
| sed.c | ||
| vi.c | ||