Use GNU history expansion instead of our own?

[hanslub42]

The GNU history library (used by rlwrap) has extensive support for bash-style history expansion. rlwrap has only a homegrown simple version of it, where !word at the beginning of an input line expands to the last command that started with word.

Should rlwrap switch to the more fancy version?

• Pro: simple to implement, much more versatile and powerful than the current expansion.
• Contra: a lot more intrusive. We certainly need an option (or environment variable) to switch it off.

[hokuda]

Supporting the full features of the GNU history library is a good idea. I'd like to use !! and !-n, the other features are too deep for me though.