James McCoy wrote:
> On Sun, Jun 24, 2018 at 10:21:10PM +0200, Christian Brabandt wrote:
> >
> > On So, 24 Jun 2018, Tony Mechelynck wrote:
> >
> > > At startup from a handcoded Session.vim I get this error (which I
> > > didn't get before with the same session script)
> > >
> > > Error detected while processing function <SNR>24_Highlight_Matching_Pair:
> > > line 97:
> > > E475: Invalid argument: 0
> > >
> > > I get this several times, including when clicking the statusline of a
> > > non-current window to make it current.
> > > Script 24 (as listed by :scriptnames) is
> > > /usr/local/share/vim/vim81/plugin/matchparen.vim
> > >
> > > If I move the cursor, be it by keyboard or by mouse, I mostly don't
> > > get this message, and the matching brackets are highlighted correctly.
> > > However I do get it when the matched brackets are the first and last
> > > characters on a line. For instance when the line is
> > >
> > > <!-- P -->
> > >
> > > with 'matchpairs' set to (:),[:],{:},<:>
> >
> > Most likely patch 8.1.112.
>
> eval_expr_to_bool() handles numbers just fine. Why make supplying a
> number for the skip argument a hard error instead of simply evaluating
> it to a boolean?
>
> The documentation had already stated that evaluation of the skip
> argument "should return non-zero if this match is to be skipped".
>
> The general reporting of errors instead of ignoring them is definitely
> useful, but it seems like there was indeed a bug in that a number was
> considered an error.
Passing the number zero made the function return right away:
skip = &argvars[4];
if (skip->v_type != VAR_FUNC && skip->v_type != VAR_PARTIAL
&& skip->v_type != VAR_STRING)
{
goto theend;
}
Thus it silently always failed.
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