busybox/editors
Ron Yorston ac6495f6fb vi: allow ctrl-D to reduce indentation
When whitespace has been automatically added to a new line due to
autoindent entering ctrl-D should reduce the level of indentation.

Implement an approximation of this by treating ctrl-D as backspace.
For the common case of indentation using tabs this is good enough.
My attempt at a full implementation was three times bigger.

function                                             old     new   delta
char_insert                                          476     531     +55
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 55/0)               Total: 55 bytes

Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2021-04-15 13:09:12 +02:00
..
awk.c awk: allow printf('%c') to output NUL, closes 13486 2021-02-02 13:51:14 +01:00
cmp.c config: update size information 2018-12-28 03:20:17 +01:00
Config.src restore documentation on the build config language 2018-06-06 15:16:48 +02:00
diff.c diff: code shrink 2021-02-22 19:00:07 +01:00
ed.c libbb: introduce and use fputs_stdout 2021-02-03 20:52:40 +01:00
Kbuild.src switch editors/* to embedded-in-source kbuild system 2013-11-13 12:45:33 +01:00
patch_bbox.c libbb: reduce the overhead of single parameter bb_error_msg() calls 2019-07-02 11:35:03 +02:00
patch_toybox.c libbb: reduce the overhead of single parameter bb_error_msg() calls 2019-07-02 11:35:03 +02:00
patch.c help text: replace [OPTIONS] with actual options (if not too long) 2020-12-13 22:34:05 +01:00
sed1line.txt add sed mini-doc 2007-11-13 17:13:31 +00:00
sed_summary.htm doc: add info about sed s/.../.../I modifier 2008-03-01 19:29:56 +00:00
sed.c libbb: reduce the overhead of single parameter bb_error_msg() calls 2019-07-02 11:35:03 +02:00
vi.c vi: allow ctrl-D to reduce indentation 2021-04-15 13:09:12 +02:00