Implement unload buffer

[alovak]

It took 2 years to update my PR :) BTW I have implemented nice feature. When you delete buffer then cursor stays at the same position. I'm not clearly understand all functions... so there are can be some issues with this. Would be great if someone can test it :)

[sjbach]

Thanks for the patch. :-) No worries about the delay. I ran into an issue: the <C-d> binding is specified on Explorer base class, but the functionality only applies to the buffer explorer. If I type <C-d> in the filesystem explorer, I get an error:

undefined methodunload_buffer' for #<LustyE::FilesystemExplorer:0x00000002985d 80> (eval):664:in unload_selected_buffer' (eval):583:inkey_pressed' (eval):875:in key_pressed' (eval):1:inblock in

' (eval):257:in profile' (eval):1:in

'`

There is an easy fix. The <C-d> binding and the unload_buffer and unload_selected_buffer functions should be specified in buffer-explorer.rb. The BufferExplorer class needs to implement the key_pressed function to include <C-d>, overriding the key_pressed function in the Explorer class. (You can take a look at filesystem-explorer.rb, which already does this, for a reference.)

[alovak]

@sjbach is it better now?

[sjbach]

Merged. Thanks for the patch. :-)

[alovak]

@sjbach thanks for great plugin!!!