Re: requiring other lua files from parent directories from within filters

[Albert Krewinkel <albert+pandoc-9EawChwDxG8hFhg+JK9F0w@public.gmane.org>]

jcr <ffi.appdev-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> On Thursday, October 5, 2023 at 6:19:10 AM UTC-4 Albert Krewinkel wrote:
>
>  That's elegant. Another way to get the value of `myDir` would be 
>
>  local myDir = pandoc.path.directory(arg[0]) 
>
>  and should also work on all platforms. It relies on pandoc's built-in 
>  path library and on a feature of the default lua interpreter, which 
>  pandoc replicates for compatibility: 
>  https://www.lua.org/manual/5.4/manual.html#7 
>
> I find with pandoc 3.1.8 that while `arg` is defined for a script executed with `pandoc lua`, it is nil for a filter executed with `pandoc
> -L`. So I'm back to my borrowed elegant solution.

Alternatively, adding this to the top of the file would ensure that the
relevant values are set:

    local arg = arg or {[0] = PANDOC_SCRIPT_FILE}



-- 
Albert Krewinkel
GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124

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