Re: Lua filter broken after upgrade to 2.15 (macOS)

[Philipp <philipp.kupferschmied-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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Thanks a lot for your help, my filter is working again :-)
As both `return pandoc.Str('")` and `return {}`solve the problem, I wonder 
if one of the two solutions is preferable over the other.


Albert Krewinkel schrieb am Montag, 1. November 2021 um 12:26:08 UTC+1:

> Sorry, I forgot to answer the original question: You can fix the filter
> by changing `return pandoc.Str()` to `return {}`.
>
> HTH
>
>
> Philipp <philipp.ku...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > Hello everyone,
> >
> > I'm experiencing a problem with a self-written Lua-filter after upgrading
> > to 2.15.
> >
> > The filter ran (and still runs) fine with older versions of pandoc, but
> > with 2.15 I get the following error:
> >
> > PandocLuaError "Error during function call:\n\tstring expected, got
> > string\n\twhile retrieving function argument string\n\twhile retrieving
> > arguments for function Str\nstack traceback:\n\t[C]: in field
> > 'Str'\n\tscripts/klausur.lua:11: in function
> > <scripts/klausur.lua:9>\n\t[C]: in ?\n\t[C]: in field
> > 'walk_block'\n\tscripts/klausur.lua:8: in function 'processheader'"
> >
> > stack traceback:
> >
> > [C]: in field 'walk_block'
> >
> > scripts/klausur.lua:8: in function 'processheader'
> > The corresponding Lua code looks like this (I hope the formatting is
> > preserved):
> >
> > 7 function processheader(elem)
> > 8 return pandoc.walk_block(elem, {
> > 9 Str = function(elem)
> > 10 if string.match(elem.text, "%%%d+p%%") ~= nil then
> > 11 return pandoc.Str()
> > 12 end
> > 13 end
> > 14 })
> > 15 end
> >
> > I'd be thankful for any suggestion what is going wrong here.
> >
> > Kind regards,
> > Philipp
>
>
> --
> Albert Krewinkel
> GPG: 8eed e3e2 e8c5 6f18 81fe e836 388d c0b2 1f63 1124
>

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