something like this perhaps?

local name = file:gsub('%.[a-z]*$', '')

On Mon, 25 Jul 2022 at 13:33, 'Jan Ulrich Hasecke' via pandoc-discuss <
pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> wrote:

> Am 25.07.22 um 10:43 schrieb William Lupton:
> > function Pandoc(pandoc)
> >    pandoc.meta.output_file = PANDOC_STATE.output_file
> >    return pandoc
> > end
>
> Thanks a lot.
>
> I tried to strip the extension like this:
>
> function Pandoc(pandoc)
>    pandoc.meta.output_file = PANDOC_STATE.output_file:sub(0, - 5)
>    return pandoc
> end
>
> But this only works with a three character extension.
>
> I guess it should be easy to strip everything after the colon with
> regexp, if one is not a regexp illiterate like me.
>
> juh
>
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