On Tue, Oct 23, 2018 at 11:44 PM Marcel Krüger <t...@2krueger.de> wrote:
> Hi,
>
> I think there is a bug in `io.open` in --safer mode:
>
> \directlua{
> io.open(tex.jobname .. '.tex'):close()
> }
> \bye
>
> If this document is run with `luatex --safer` it leads to `bad argument #1
> to 'gsub' (string expected, got nil)`.
>
> The problem is a missing `not` in luatex-core.lua, function
> luatex_io_open_readonly:
> The default argument 'r' is used if an explicit argument is given and when
> no "how" argument
> is given it tries to interpret the non existing argument.
>
hm this is tricky.. we have to check it carefully,
these "safer" modes are quite complicated things.
--
luigi
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