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RE: Gnus + emacs.stackexchange
From: |
Drew Adams |
Subject: |
RE: Gnus + emacs.stackexchange |
Date: |
Mon, 11 May 2015 06:54:50 -0700 (PDT) |
> >>> (wrong-type-argument char-or-string-p nil) in
> >>> tabulated-list-print
> >>
> >> Ok, would you be willing to produce a backtrace?
> >> (with M-x toggle-debug-on-error)
> >
> > This is what it says for `sx-search':
> >
> > Debugger entered--Lisp error: (wrong-type-argument char-or-
> > string-p nil)
> > tabulated-list-print-fake-header()
> > tabulated-list-print(remember)
>
> Ok. It looks like something is setting your
> `tabulated-list-use-header-line' variable to nil *between* the
> buffer initialization and the list printing. So the
> `tabulated-list--header-string' variable doesn't get set (it's
> normally set during buffer initialization), but when it's time to
> print, the variable is expected to be a string.
> I think that's a bug in tabulated-list-mode (which I'll try to get
> fixed now), but do you have any hooks or advices that may be causing
> that?
Check where you call the major (derived) mode, which calls
`tabulated-list-mode'. If it calls it after you have already
inserted the header line then that line will be removed when
`tabulated-list-mode' (calls `special-mode' which) kills all
local variables.
IMO, the `tabulated-list-mode' doc is not clear about such
things. Put differently, the design of `tabulated-list-mode'
seems to be a bit fragile. You need to do things in a specific
order, which is not well documented.
Caveat: I'm no expert on `tabulated-list-mode'. Just starting
to wade through it myself, actually - which is why I think I
recognize the above error. When I understand it better I will
perhaps file a bug report or two - doc or otherwise.
- Re: Gnus + emacs.stackexchange, (continued)
- Message not available
- Re: Gnus + emacs.stackexchange, Emanuel Berg, 2015/05/05
- Re: Gnus + emacs.stackexchange, Artur Malabarba, 2015/05/07
- Message not available
- Re: Gnus + emacs.stackexchange, Emanuel Berg, 2015/05/07
- Re: Gnus + emacs.stackexchange, Artur Malabarba, 2015/05/08
- Message not available
- Re: Gnus + emacs.stackexchange, Emanuel Berg, 2015/05/09
- Re: Gnus + emacs.stackexchange, Artur Malabarba, 2015/05/11
- RE: Gnus + emacs.stackexchange,
Drew Adams <=
- Re: Gnus + emacs.stackexchange, Artur Malabarba, 2015/05/11
- RE: Gnus + emacs.stackexchange, Drew Adams, 2015/05/11
- Re: Gnus + emacs.stackexchange, Artur Malabarba, 2015/05/11
- Re: Gnus + emacs.stackexchange, Artur Malabarba, 2015/05/11
- RE: Gnus + emacs.stackexchange, Drew Adams, 2015/05/11