At least that can be assigned to a variable in a more portable fashion than a hardcoded path, but this reminds me that Pandoc.pm, the Perl wrapper module, resorts to this kind of parsing --version output with regex to determine the default data dir path, so a more straightforward way of getting the path may be good for the use of wrappers.
You can already do
$(pandoc -v | grep "User data directory" | sed -e 's/.*: //')
BPJ <melroch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
> It occurred to me that it would be nice if `--data-dir` as only option and
> without any argument would print the default data dir path so that one
> could use `$(pandoc --data-dir)` to get there. I just wanted to probe the
> waters whether others think this is utterly silly or not before opening an
> issue. (I'm aware that you could define a variable in your shell rc file,
> but doing so on every machine/device[^1] is a hassle.)
>
> [^1]: Yes I can run pandoc under Termux on Android. I haven't been able to
> get LaTeX to work yet, but it's good for work in progress.
>
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