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
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(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>
ac6495f6fb