support alt/meta-backspace to delete word.

[graham]

alt-backspace is a common "delete word" in bash (and mac os x).

[c-bata]

Thanks. Your code changes are OK but I couldn't test this on my macbook pro. The reason why is iTerm2 and Terminal.app process Alt+Backspace as 0x7f (this is the same with Backspace).

(When I type Alt+Backspace on Coteditor, it works fine. But iTerm2 and Terminal.app is not)

Tested on following versions of terminal emulators.

• iTerm2 3.2.4
• Terminal.app 2.9

Could you tell me the version of terminal emulators you use?

[graham]

Interesting, perhaps it's an issue with my Tmux config. I'll test a bit more and make sure it works with iterm2 and terminal (with and without tmux).

[cmprmsd]

Hey @graham Just wondering why this was never merged and if there is a better way to detect the difference between backspace and alt+backspace.
Seems strange that this should be the same key code on Mac.

As you already said, it's quite common in most editors.

I'd like to use alt+backspace on Linux to delete full words.
For now I use ctrl+w as a workaround which seems to be emacs bindings as brianstrauch mentioned in the referenced issue in cobra-shell.