Re: context for globbing qualifiers based on command

[Mikael Magnusson <mikachu@gmail.com>]

On 29 February 2012 19:32, Mikael Magnusson <mikachu@gmail.com> wrote:
> On 29 February 2012 19:22, Bart Schaefer <schaefer@brasslantern.com> wrote:
>> (It wasn't necessary to send this inquiry twice.  It sometimes takes a
>> little while for a response.)
>>
>> On Feb 27, 11:20am, Martin Richter wrote:
>>>
>>> Is it possible to tweak the completion such that shell functions are
>>> grouped at the top when pressing TAB when using (:e...) on a given command?
>>>   print -l *(e:TAB --> gives a lot of possible functions etc
>>> but
>>>   special_command *(e:TAB
>>> gives only shell function matching some regexp or gives only the single
>>> function 'foo' or members of an array of functions?
>>
>> Unfortunately, no.  The zstyle context after *(e: is identical to the
>> context in any other command position.
>>
>> However, the $words array hasn't been altered, so you could write a
>> function to be installed in your "completer" style that examines the
>> values of $words[1] and $words[CURRENT], something like this:
>>
>> _special_command_glob_completer() {
>>  if [[ CURRENT -gt 1 &&
>>        "$words[1]" = 'special_command' &&
>>        "$words[CURRENT]" = *\(*e:* ]]
>>  then
>>    compset -p ${#words[CURRENT]}
>>    compadd -J special-globbers sum_equals product_equals
>>    return 0
>>  else
>>    return 1
>>  fi
>> }
>>
>> zstyle ':completion:*' completer _expand \
>>        _special_command_glob_completer \
>>        _complete _match _ignored _approximate _prefix
>>
>> (the rest of that completer style is just for example, but you probably
>> want at least _complete in there after your special one).
>>
>> It might also be possible to do this more generically with a "matcher"
>> zstyle in the context :completion::complete:-command-::* but I'll leave
>> that for someone else to work out.  (It'd have to use "zstyle -e" and
>> some kind of test similar to the "if" above.)
>
> You can probably do this a bit less fragilely with $zsh_eval_context:
>
> % print -l $(echo .(e:'reply=($zsh_eval_context)':))
> cmdsubst
> globqual
> toplevel

Ignore that :).

-- 
Mikael Magnusson