Re: quickfix information

On 11 April 2015, Christian Brabandt <cblists@256bit.org> wrote:
> Hi LCD!
>
> On Sa, 11 Apr 2015, LCD 47 wrote:
>
> > Being able to save "ancillary" data in quickfix lists / loclists
> > as the OP suggests would be quite useful too. Then w:quickfix_title
> > could be saved there, and that would be easier to implement than
> > keeping track of updates to w:quickfix_title.
>
> Like what? Only save a custom dict, like w:quickfix_data?

Right now setqflist() takes a list of dictionaries as an
argument. What I had in mind was an extra field (say, 'data') in these
dictionaries, pointing to a value of some unspecified type. These
fields would be saved by setqflist() and restored by getqflist(), but
would be ignored when showing the quickfix list in a window.

Internally the 'data' field might be simply a reference to an
existing value. A string would work too, but would force the user
to do encoding / decoding if she actually needs the extra data to be
structured.

Also it would be tremendously useful to have a new %-format for
errorformat and friends, that would write to (subfields of) the new
'data' field. Or perhaps some kind of mechanism that would direct the
output of an existing %-format to (subfields of) the 'data' field.
Right now, the only way to parse things like multiple column numbers
from a single line of compiler output is to do it with the (otherwise
mostly useless) %n, and post-process the resulting quickfix.

Alternatively, saving a single string value along with the list
of dictionaries would still work (it might point to a dictionary when
needed), but using the data in practice would be a pain.

And of course all this would also apply to loclists.

> That shouldn't be too hard to implement.


/lcd

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