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author | Ron Yorston <rmy@pobox.com> | 2019-04-28 09:09:33 +0100 |
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committer | Denys Vlasenko <vda.linux@googlemail.com> | 2019-04-28 17:16:46 +0200 |
commit | 4b49422a08b89bd01023e7b4fa73ab058ee66932 (patch) | |
tree | fd1d428164b22ab22b2f03cf2307cef9fbd15931 /scripts/basic | |
parent | 93f0b39a0712f3247349f1590757484ca18e725e (diff) | |
download | busybox-4b49422a08b89bd01023e7b4fa73ab058ee66932.tar.gz |
vi: fix changes to word at end of line. Closes 11796
As reported in bug 11796 BusyBox vi incorrectly handles changes
to a word at the end of a line. If the following line starts
with whitespace changing or deleting the last word of a line
with the 'cw' or 'dw' commands causes the lines to be joined.
This happens because the range for the change returned by
find_range() covers all whitespace after the word, including
newlines. The problem can be fixed by setting 'ml' to zero
to indicate to yank_delete() that processing should stop at
the end of the current line.
However, this results in a new problem. 'dw' correctly deletes
all whitespace following the word but so does 'cw', which should
preserve the trailing whitespace. To fix this the code to omit
whitespace from the change is modified to include all whitespace
not just blanks.
function old new delta
do_cmd 5034 5069 +35
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 35/0) Total: 35 bytes
Reported-by: David Kelly <david.kelly@liberica.ch>
Signed-off-by: Ron Yorston <rmy@pobox.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'scripts/basic')
0 files changed, 0 insertions, 0 deletions