How to capture a list of completions from a zle widget

How to capture a list of completions from a zle widget

[Thiago Padilha]

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Hi

How can I capture a list of possible completions for the current values of
$LBUFFER $RBUFFER and $CURSOR in a zle widget? I know invoking 'zle
list-choices' will display on terminal, but I would like to capture those
in an array.

Thanks

Re: How to capture a list of completions from a zle widget

[Bart Schaefer]

On Oct 27,  4:16pm, Thiago Padilha wrote:
}
} How can I capture a list of possible completions for the current values
} of $LBUFFER $RBUFFER and $CURSOR in a zle widget?

You need to override the "compadd" builtin.  Have a look at the example
_expand_word_and_keep function in Functions/Zle/keeper.


Which, I've just noticed, unnecessarily uses both the "function" keyword
and the "name()" syntax; only one or the other is necessary.  Also the
"always" block in _expand_word_and_keep really should cover the entire
definition of the compadd function.  So many nits to be picked ...

Re: How to capture a list of completions from a zle widget

[Valodim Skywalker]

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The only method known to me is by hooking compadd and some black magic:

https://github.com/Valodim/zsh-capture-completion

If it can be done in a less hacky way, I'd be all ears.

 - V


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Re: How to capture a list of completions from a zle widget

[Bart Schaefer]

On Oct 27,  9:44pm, Valodim Skywalker wrote:
} 
} https://github.com/Valodim/zsh-capture-completion
} 
} If it can be done in a less hacky way, I'd be all ears.

The zpty magic that Valodim is doing there is all so that you can run
the capture scripts as standalone programs.  If you're just writing a
widget to run inside ZLE, you don't need all that.

BTW here's a working link to the old Unix Review article that explains
how the "keeper" functions evolve:

http://web.archive.org/web/20050207041146/http://www.unixreview.com/documents/s=9513/ur0501a/ur0501a.htm

Re: How to capture a list of completions from a zle widget

[Thiago Padilha]

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Ok

I already knew about Valodim's solution, I just wanted to be absolutely
sure there was no other way before going with it.

Thanks


On Sun, Oct 27, 2013 at 6:06 PM, Bart Schaefer <schaefer@brasslantern.com>wrote:

> On Oct 27,  9:44pm, Valodim Skywalker wrote:
> }
> } https://github.com/Valodim/zsh-capture-completion
> }
> } If it can be done in a less hacky way, I'd be all ears.
>
> The zpty magic that Valodim is doing there is all so that you can run
> the capture scripts as standalone programs.  If you're just writing a
> widget to run inside ZLE, you don't need all that.
>
> BTW here's a working link to the old Unix Review article that explains
> how the "keeper" functions evolve:
>
>
> http://web.archive.org/web/20050207041146/http://www.unixreview.com/documents/s=9513/ur0501a/ur0501a.htm
>