From: Hans Hagen <j.hagen@xs4all.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>,
Henri Menke <henrimenke@gmail.com>
Subject: Re: LuaTeX incompatible with Lua
Date: Thu, 21 Nov 2019 09:18:44 +0100 [thread overview]
Message-ID: <c2e9b6fe-705b-28dd-cf9f-8716e89660e7@xs4all.nl> (raw)
In-Reply-To: <9303d3b5-d2b8-5d80-4f19-3e1f59cdb2d8@gmail.com>
On 11/21/2019 8:17 AM, Henri Menke wrote:
> Dear list,
>
> The following Lua script behaves differently when executed in Lua vs.
> LuaTeX.
>
> print(os.execute("date"))
>
> It seems that the definition of os_execute in loslibext.c was copied
> over from Lua 5.1 and not adapted to newer versions.
>
> $ lua5.1 test.lua
> 0
> $ lua5.2 test.lua
> true exit 0
> $ lua5.3 test.lua
> true exit 0
> $ texlua test.lua
> 0
> $ luajit test.lua
> 0
> $ texluajit test.lua
> 0
>
> As you can see from the example, this comes with the additional
> complication that LuaJIT has Lua 5.1 behaviour and should also retain
> that.
Indeed, the old interface was kept (also for compatibility reasons as
lua is used for scripts in texlive etc).
If one used lua as well as luatex as lua engine for the same script one
can write a wrapper if needed (I have been thinking of that on context
but again it would also mean adapting older scripts laying around.)
Hans
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prev parent reply other threads:[~2019-11-21 8:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-21 7:17 Henri Menke
2019-11-21 7:43 ` Henri Menke
2019-11-21 8:18 ` Hans Hagen [this message]
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