Re: Update quickfix list, recall vimgrep expression

On Aug 17, 4:57 pm, Christian Brabandt <cbli...@256bit.org> wrote:
> Hi Paul!
>
> On Mi, 17 Aug 2011, Paul wrote:
> > On Aug 17, 3:03 pm, Paul <paul.domas...@gmail.com> wrote:
> > > On Aug 17, 10:14 am, Paul <paul.domas...@gmail.com> wrote:
> > > > On Aug 17, 1:44 am, "Christian Brabandt" <cbli...@256bit.org> wrote:
> > > > > On Wed, August 17, 2011 4:00 am, Paul wrote:
> > > > > > I am using Vim 7.3 on Windows 7 Enterprise 32-bit.
>
> > > > > > I'm use the quickfix list a lot with vimgrep.  I swap between lists by
> > > > > > the :cold and :cnew commands.  However, after much editing, the lists
> > > > > > get out-of-date.  When I cruise between lists, I often forget the
> > > > > > vimgrep expression, and the command history q: doesn't help after much
> > > > > > editing and flipping between lists.  Is there a way to: (1) recall the
> > > > > > vimgrep expression associated with the currently viewed quickfix list,
> > > > > > and (2) refresh the list by effectively redoing the vimgrep?  For #2,
> > > > > > I can see advantages and disadvantages to putting the repeated vimgrep
> > > > > > onto the command history as a new entry.
>
> > > > > I think since Vim 7.3 the quickfix window should always have the variable
> > > > > w:quickfix_title set which contains the command that created this list.
> > > > > Unfortunately, until at least patch 7.3.280 that variable wasn't always
> > > > > updated so often did contain only the first command, but that patch
> > > > > should have fixed that.
>
> > > > > The $VIMRUNTIME/ftplugin/qf.vim should also set the statusline in the
> > > > > quickfix window to display that variable.
>
> > > > > Assuming you have been in the quickfix window before and are now in
> > > > > another window, something like that should be possible to redo
> > > > > the command, that created the quickfix window:
>
> > > > > :exe getwinvar(winnr('#'), 'quickfix_title')
>
> > > > OK, thanks, Christian.  Many new vim concepts (to me) in that
> > > > example...I'll explore it further.
>
> > > I sourced that file manually.  I can't say that I understand it all,
> > > but the most relevant line seems to be
>
> > > setlocal stl=%q%{exists('w:quickfix_title')?\ '\ '.w:quickfix_title\ :
> > > \ ''}
>
> > > In any case, it seems to require that the cursor doesn't *have* to be
> > > in the quickfix window prior to sourcing the file, but the statusline
> > > doesn't update until I re-issue ":copen".
>
> > > It helps alot....being greedy, I was wondering:
>
> > > Is there a simple way to get the statusline to update automatically?
>
> > > Also, short of placing an source command in .vimrc, is there a way to
> > > ensure that this plugin runs automatically?  I mean something more
> > > elegant than dropping it in my vim/plugin/ directory.  My runtime path
> > > already "c:\Program Files\Vim\vim73".  The full path of the plugin is
> > > "c:\Program Files\Vim\vim73\ftplugin\qf.vim".  It should load already,
> > > but doesn't seem to.
>
> > My quick and dirty solution is:
>
> > command QF source c:/Program\ Files/Vim/vim73/ftplugin/qf.vim
>
> A simple
> filetype plugin on
> in your .vimrc should suffice, that the file should be read
> automatically.

That is so much more elegant. Thank you.

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