search

mthom / scryer-prolog

A modern Prolog implementation written mostly in Rust.
BSD 3-Clause "New" or "Revised" License
2.05k stars 120 forks source link

Support for inputrc? #1358

Open ghost opened 2 years ago

ghost commented 2 years ago

Hi,

I was wondering if scryer-prolog supports configuring readline functionality with inputrc on Linux. I have:

set editing-mode vi

in my .inputrc but it makes no difference to the operation of scryer-prolog used interactively. Perhaps there is some other way of configuring readline functionality? I have read the scryer-prolog README but did not see this issue covered.

Now I know I should learn EMACS key bindings, but I have been using vi for more than 30 years and use vi key bindings without problem in swi-prolog. It is hard for an old dog to learn new tricks!

For your information, a "scryer-prolog --version" command on my system outputs "cargo:0.8.127", and the version of Linux is "Linux Mint 19.1 Tessa".

Thanks for any assistance, and for a most interesting product!

wkral commented 2 years ago

There is an issue in rustyline the input library that scryer uses for readline functionality: https://github.com/kkawakam/rustyline/issues/303 to add inputrc support. Though I'm not sure what priority it has. I imagine if it got implemented there, then scryer would get that functionality after updating rustyline.

ghost commented 2 years ago

Many thanks for that information. I think I might just have to bite the bullet and learn EMACS given the other considerable benefits of doing so!

triska commented 2 years ago

@Tachinid: One setting I suggest for ergonomic Emacs key bindings is to configure the CapsLock key to act as Ctrl. This can be made system-wide, and makes it easy to use C-p, C-n etc. which are frequently used in Emacs and also on the shell.

ghost commented 2 years ago

@triska Many thanks, I will try your suggestion. I always did find using Ctrl awkward but the constant reaching for ESC in vi is a comparable pain that I eventually learned to live with!