Ctrl-Backspace Not Working as Expected

[mightymalakai]

I've been looking at using JLine 3 to handle some completion that I want to put into an app I'm building. One thing I noticed in the limited time that I've been working on a small demo is that ctrl-backspace doesn't delete whole words. When I'm using the normal Windows 10 cmd prompt it works and so does using Java System.in, but when I use a JLine 3 LineReader ctrl-backspace only deletes a single character.

Just so it's clear, I'm talking about typing "hello world" and then pressing ctrl-backspace which changes it to "hello ". JLine 3 shows "hello worl".

Is there a way to enable ctrl-backspace functionality for deleting words, or is this a limitation?

Thanks

[Guillaume Nodet]

The default binding for the BACKWARD_KILL_WORD action are Ctrl+W, Alt+Ctrl+H, Alt+Backspace.

You can add a mapping for the same operation to Ctrl+Backspace easily. 

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[mightymalakai]

The following worked like a charm once I figured out how you properly add key bindings. Thanks!

KeyMap<Binding> main = lineReader.getKeyMaps().get(LineReader.MAIN);

main.bind(new Reference(LineReader.BACKWARD_KILL_WORD), KeyMap.ctrl('\u0008'));

On Thursday, July 4, 2019 at 9:16:21 PM UTC-4, gnodet wrote:

The default binding for the BACKWARD_KILL_WORD action are Ctrl+W, Alt+Ctrl+H, Alt+Backspace.

You can add a mapping for the same operation to Ctrl+Backspace easily. 

On Fri, Jul 5, 2019 at 3:08 AM mightymalakai <mightym...@gmail.com> wrote:

I've been looking at using JLine 3 to handle some completion that I want to put into an app I'm building. One thing I noticed in the limited time that I've been working on a small demo is that ctrl-backspace doesn't delete whole words. When I'm using the normal Windows 10 cmd prompt it works and so does using Java System.in, but when I use a JLine 3 LineReader ctrl-backspace only deletes a single character.

Just so it's clear, I'm talking about typing "hello world" and then pressing ctrl-backspace which changes it to "hello ". JLine 3 shows "hello worl".

Is there a way to enable ctrl-backspace functionality for deleting words, or is this a limitation?

Thanks

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To unsubscribe from this group and stop receiving emails from it, send an email to jline...@googlegroups.com.

[mightymalakai]

Correction, that code does work but it also makes backspace without ctrl pressed also execute BACKWARD_KILL_WORD. Not exactly useful...

Do you have any tips on how to provide the right sequence of characters for the key binding? I can't find a way to use ctrl + backspace.