Is it possible to skip execution of empty command

[Jai-JAP]

Currently (Atleast by default) its not possible to skip execution of empty commands (or just spaces) & it simply gives an empty prompt on pressing RET.

Is there a way to skip execution of the current command if it is empty (or just whitespaces) when RET is pressed?

[akinomyoga]

It's already skipping the execution of the command. It just reprints the prompt in the current implementation. If you want to skip the reprinting, you can modify the behavior of ble/widget/default/accept-line. For example,

# blerc

ble/function#advice around ble/widget/default/accept-line '
  ble-edit/content/clear-arg
  [[ ${_ble_edit_str//["$_ble_term_IFS"]} ]] && ble/function#advice/do'

[Jai-JAP]

That hopefully solves my query. I'll try that today.

[Jai-JAP]

Ok I have used this for some days now and in the current setup the prompt reappears on pressing CTRL+C

Is it possible to fix that?

[akinomyoga]

You can just do the same for discard-line:

ble/function#advice around ble/widget/discard-line '
  ble-edit/content/clear-arg
  [[ ${_ble_edit_str//["$_ble_term_IFS"]} ]] && ble/function#advice/do'

Or if you don't want to make C-c do anything, you can disable it by

ble-bind -f C-c nop

[Jai-JAP]

Ok that works.
i just looked around for a similar thing in ble/widget/default and couldn't find one.

Are both accept-line widgets same in ble/widget/default and ble/widget?

[akinomyoga]

Are both accept-line widgets same in ble/widget/default and ble/widget?

No. ble/widget/accept-line performs extra work depending on the current keymap. ble/widget/default/accept-line is called by ble/widget/accept-line. That extra work is needed even for the empty command line. What we would like to skip this time is just ble/widget/default/accept-line, so we need to hook into ble/widget/default/accept-line but not into ble/widget/accept-line.