Re: quickfix information

On 10 April 2015, Ben Fritz <fritzophrenic@gmail.com> wrote:
> On Friday, April 10, 2015 at 1:42:20 PM UTC-5, LCD 47 wrote:
> > > I think the quickfix window title (:help w:quickfix_title) is also
> > > saved with the list in recent versions of Vim.
> >
> > It isn't. The (relatively) recent patch about w:quickfix_title
> > resolves a bug, where an existing w:quickfix_title would get erased
> > by some operations. It has nothing to do with the actual contents
> > of the quickfix lists / loclists.
> >
>
> What I meant was, :colder and :cnewer will somehow restore the
> w:quickfix_title as you cycle through the lists. In that way the title
> is "saved with the list".
>
> I can't find the patch right now, did this make it in? I remember
> wanting to have this function.

It didn't, as far as I can tell.

> > > You *might* be able to take advantage of this (especially since
> > > project name and compilation mode would probably be useful in the
> > > quickfix title as well).
> > >
> > > But maybe taking advantage of this would actually require the
> > > patch from this todo item:
> > >
> > > Patch to allow setting w:quickfix_title via setqflist() and
> > > setloclist() functions. (Christian Brabandt, 2013 May 8, update
> > > May 21)
> >
> > This allows you to set w:quickfix_title, which is later
> > displayed on the status bar of the quickfix window. It doesn't
> > allow you to save arbitrary data to quickfix lists / loclists.
> >
>
> Ah, but as long as you are OK with that information showing up in the
> title, if you can set w:quickfix_title to an arbitrary string, then
> you *can* store arbitrary data associated with a given quickfix list.

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.

> For example, if you set the w:quickfix_title to "make of
> PROJECT=myproj CONFIG=configname" then it would be easy to extract the
> desired information from the title.
>
> It would have the effect of changing the quickfix title, so perhaps
> that isn't the best way to accomplish the task at hand; but it may
> work without any new changes to Vim.
>
> It would be a nice addition, if we already have a w:quickfix_title
> variable that is associated with a given quickfix list (somehow), to
> have a dict variable of some kind also associated with the list, for
> the sake of storing arbitrary user (plugin) data. Then plugins could
> store enough information to re-run the command that created the list,
> for example.

/lcd

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