On 8 October 2016, Bram Moolenaar <b...@moolenaar.net> wrote:
>
> > Lcd wrote:
> >
> > On 7 October 2016, Gerd Wachsmuth <vim-dev-git...@256bit.org> wrote:
> > > > The issue is that the multiline error is started by %W and ends with %Z
> > > > without adding any errors.
> > > In my opinion, it is not the issue that no `%C` is present:
> > > With
> > >
> > > set efm=%+Eerror\ %l,%-Winfo\ %m\ %l,%+Ceven\ more\ %m,%Zmore\ info
> > > (note the `%C` line)
> > > and the errorfile
> > > ````
> > > info bla 3
> > > even more info
> > > more info
> > > error 2
> > > ````
> > > we do not see `error 2` in the quickfix window.
> >
> > What seems to be going on here is that the first line gets matched
> > as `%-W` and `qf_parse_line()` returns `QF_IGNORE_LINE`. Then the
> > second line gets matched as `%+C`, it sets `%m`, but then it can't
> > find a previous line to continue since the previous line was ignored.
> > Consequently `qf_parse_line()` returns `QF_FAIL`, and `qf_init_ext()`
> > bails out at that point, silently ignoring any remaining input.
> >
> > Possible solution:
> >
> > ```diff
> > diff --git a/src/quickfix.c b/src/quickfix.c
> > index 52abbeb..9139663 100644
> > --- a/src/quickfix.c
> > +++ b/src/quickfix.c
> > @@ -1010,6 +1010,8 @@ restofline:
> > }
> > else if (vim_strchr((char_u *)"CZ", idx) != NULL)
> > { /* continuation of multi-line msg */
> > + if (!qi->qf_multiignore)
> > + {
> > qfline_T *qfprev = qi->qf_lists[qi->qf_curlist].qf_last;
> >
> > if (qfprev == NULL)
> > @@ -1043,6 +1045,7 @@ restofline:
> > ? fields->namebuf
> > : qi->qf_currfile != NULL && fields->valid
> > ? qi->qf_currfile : 0);
> > + }
> > if (idx == 'Z')
> > qi->qf_multiline = qi->qf_multiignore = FALSE;
> > line_breakcheck();
> > ```
>
> Could you write a test that covers this?
Done:
https://gist.github.com/lcd047/4d4adb7e77fe29d9a8313c27fd42db25
(the diff is a lot bigger because of re-indentation).
/lcd
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