RE: Getting context sensitive glob expansions using new completion

RE: Getting context sensitive glob expansions using new completion

[martin.ebourne]

> Borsenkow Andrej wrote:

> Alternatively one can make _all_matches insert a pseudo-match for all
> results from _match, if any:

>   zstyle ':completion:*' completer _complete _all_matches _match
>   zstyle ':completion:*:match:*' group-order all-matches

Thanks, that nearly does what I want. However, I think that tag-order
should do exactly what I want. As in the line I tried previously:

  zstyle ':completion:*:match:*' tag-order all-matches

However, this seems to have no effect. Why is that?

> But the question is: do you really want that?  The consens on this
> list seems to be now that _all_matches is most useful as a separate
> widget.  I.e. you set up completion as you like, without thinking
> about the possibility to insert all matches.  Then you add a new
> binding as described in the manual for _all_matches:
>   zle -C all-matches complete-word _generic
>   bindkey '^Xa' all-matches
>   zstyle ':completion:all-matches:*' old-matches only
>   zstyle ':completion:all-matches:*' completer _all_matches
> And voila, now you can use normal completion until you have the set
> matches you want to insert in the line and then hit ^Xa to do that.

Well I guess its just what I'm used to. Currently I tab to expand the line
and if I don't like it I just undo (ctrl-/), which has always been how Zsh
used to do it. Having said that I like the sound of what you suggest here
so I'll try that out. Some habits are worth changing. ;)

As an aside, the completion system is extremely powerful and not a little
bit difficult to understand and configure when completely new to it.
There's also lots of these little nuggets of information which can help
configure it how you like. Some of them are in various places in the
manual, some on this list, and most are probably still 'secret'. What I
think would be really useful is a hints & tips section in the manual. Kind
of 'if you want this - do this'.

Cheers,

Martin.

RE: Getting context sensitive glob expansions using new completion

[Borsenkow Andrej]

> 
> completer
>         :completion:* _expand _complete _ignored _approximate _prefix
> glob
>         :completion:*:expand:* 1
> tag-order
>         :completion:*:expand:* all-expansions expansions original
> 
> I also have menu completion switched off at all times (apart from
> _approximate).
> 
> So then when I type eg.
>      ls *<tab>
> the * is expanded immediately into a full list of files (by _expand,
tab
> being mapped to complete-word).
> 
> This is what I want for ls. However, in general I would like the *
> expansion to be the list of things valid at the point rather than
always a
> list of files, which is what I currently get.
> 

That is what _match is for. I personally find unconditional _expand on
every TAB bad idea - you always have ^Xe (or ^XE) for that. 

zstyle ':completion:*' completer _oldlist _complete _match

_oldlist makes sure that you are using original expansions when
continuing completion (else second TAB may complete too much).

-andrej

Getting context sensitive glob expansions using new completion

[martin.ebourne]

Hi,

I currently use styles including the following:

completer
        :completion:* _expand _complete _ignored _approximate _prefix
glob
        :completion:*:expand:* 1
tag-order
        :completion:*:expand:* all-expansions expansions original

I also have menu completion switched off at all times (apart from
_approximate).

So then when I type eg.
     ls *<tab>
the * is expanded immediately into a full list of files (by _expand, tab
being mapped to complete-word).

This is what I want for ls. However, in general I would like the *
expansion to be the list of things valid at the point rather than always a
list of files, which is what I currently get.

eg.
     functions *<tab>
should expand to a list of functions.

So to achieve this I tried the following:

To add the list of all expansions I added _all_matches, and to get a list
of valid expansions using globbing I added _match. I added _match before
_complete because I want globbing to be expanded first, as in:
     zstyle ':completion:*' completer _all_matches _expand _match _complete _ignored _approximate _prefix

In order to prevent _match from affecting anything entered which is not a
pattern I did:
     zstyle ':completion:*' match-original only

In order that the all expansions list contains only those generated by
globbing I did this:
     zstyle ':completion:*' avoid-completer _expand _complete _ignored _approximate _prefix

And in order to stop expand from getting there first I did this:
     zstyle ':completion:*:expand:*' glob false

Now everything nearly works. I seem to get a list of all expansions when I
want it (ie. when a glob pattern is present), containing the matches I want
(ie. context dependant). However, I also get the list of individual
matches, and it launches into menu completion at the first available
opportunity. So I though maybe one of these might help:
     zstyle ':completion:*:all-matches:*' tag-order all-matches
     zstyle ':completion:*:match:*' tag-order all-matches

But unfortunately neither of them seemed to do anything. (even when I
changed it to ':completion:*' and deleted all my other tag-orders.)

Any suggestions on how to get the last step of inserting the all-matches
list straight way?

Thanks,

Martin.




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