Re: Lua filter to remove captions from tables

[Stephan Boltzmann <stephan2boltzmann-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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Thanks again for your answers - I would have never come up with Albert's 
solution.
With this addition, the filter is working fine.
(I should have specified the error message for completeness:
Error running filter remove_tables.lua:
Could not read list: Could not get Block value: expected table, got 'nil' 
(nil))


Albert Krewinkel schrieb am Samstag, 16. Januar 2021 um 18:05:13 UTC+1:

> I didn't test it, but I believe this should prevent the error:
>
> elem.caption = {long = {}}
>
> I feel like BPJ's version is morally correct, so I'll create a PR that
> would allow it.
>
>
> BPJ <mel...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > It does? I'm away from my work computer ATM so I can't test. Have you 
> tried
> > to just return elem without wrapping it in a table? (Not that it should
> > make any difference.) Also try to explicitly return nil as a fallback at
> > the bottom of the function, although I'm not sure that should make any
> > difference either.
> >
> > --
> > Better --help|less than helpless
> >
> > Den lör 16 jan. 2021 10:24Stephan Boltzmann <stephan2...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > skrev:
> >
> >> Thanks again for your answer.
> >> I'm not sure whether I understood everything correctly.
> >>
> >> if FORMAT:match 'latex' then
> >> function Table (elem)
> >> elem.caption = {}
> >> return {elem}
> >> end
> >> end
> >>
> >> Gives me an error message.
> >>
> >> BPJ schrieb am Donnerstag, 14. Januar 2021 um 23:00:07 UTC+1:
> >>
> >>> You can just return the original table having replaced the caption with
> >>> an empty list in place.
> >>>
> >>>
> >>> --
> >>> Better --help|less than helpless
> >>> Den tors 14 jan. 2021 13:29Stephan Boltzmann <stephan2...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> >>> skrev:
> >>>
> >>>> Thanks a lot for your hint.
> >>>>
> >>>> Then I would still have to fix the return statement.
> >>>>
> >>>> BP schrieb am Donnerstag, 14. Januar 2021 um 11:43:32 UTC+1:
> >>>>
> >>>>> I think you should use `elem.caption = {}`
> >>>>>
> >>>>> --
> >>>>> Better --help|less than helpless
> >>>>>
> >>>>> Den tors 14 jan. 2021 10:41Stephan Boltzmann <stephan2...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> >>>>> skrev:
> >>>>>
> >>>>>> Hello everybody out there using Pandoc,
> >>>>>>
> >>>>>> I would like to remove the caption from tables in PDF output and 
> tried
> >>>>>> a couple of things without success:
> >>>>>>
> >>>>>> if FORMAT:match 'latex' then
> >>>>>> function Table (elem)
> >>>>>> --caption = elem.caption
> >>>>>> caption = elem.c[2] -- caption seems to be second element
> >>>>>> print(pandoc.utils.stringify(caption))
> >>>>>> --elem.c[2] = nil
> >>>>>> --elem.c[2] = pandoc.Str('Test')
> >>>>>> --elem.caption = nil
> >>>>>> --elem = nil
> >>>>>> --return {pandoc.Table(elem.c)}
> >>>>>> --return {elem}
> >>>>>> --elem:remove(2)
> >>>>>> --table.remove(elem.c,2)
> >>>>>> --[[
> >>>>>> return {
> >>>>>> pandoc.Para(pandoc.Str('test'))
> >>>>>> }
> >>>>>> --]]
> >>>>>> return {
> >>>>>> --pandoc.Table(elem.caption, elem.aligns, elem.widths,
> >>>>>> elem.headers, elem.rows)
> >>>>>> }
> >>>>>> end
> >>>>>> end
> >>>>>>
> >>>>>> The main problem could actually rather be the construction of the
> >>>>>> table using the function pandoc.Table in the return statement:
> >>>>>> Could not read list: Could not get Block value: expected table, got
> >>>>>> 'nil' (nil)
> >>>>>>
> >>>>>> --
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> >
> >> .
> >>
>
>
> --
> Albert Krewinkel
> GPG: 8eed e3e2 e8c5 6f18 81fe e836 388d c0b2 1f63 1124
>

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