complete: add support for spaces in completions

Drivers have spaces inside their names, which makes tab completion
tricky as it restarts for every separate argument.

Support for doing this in readline and hush landed in commits
1498093ccd11 ("readline: Complete strings containing whitespaces correctly")
and 70e0885229d2 ("hush: Fix handling '\ '") respectively.

This only goes one way though, escape a completion suggestion. The
suggestion needs to be unescaped again, so repeated <Tab> usage after
modifying the prompt is understood.

For this to work, skip backslashes in the argument being completed.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20231109122551.1486020-2-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

0 files changed, 0 insertions, 0 deletions