From: Philipp Gesang <pgesang@ix.urz.uni-heidelberg.de>
To: ntg-context@ntg.nl
Subject: lua args or how to identify the interpreter
Date: Thu, 22 Jul 2010 11:51:59 +0200 [thread overview]
Message-ID: <20100722095159.GA7491@aides> (raw)
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Hi all,
what would be an elegant way to make out the current interpreter from inside
lua?
For now I'm branching things at the top of the script like this:
···8<··········································································
if arg[-1] == "texlua" then
utf=unicode.utf8
else
require "lpeg"
utf=string
end
···8<··········································································
because I have neither slnunicode nor a built-in lpeg on my system's lua
installation. The problem is that luatex has arg[-1] == nil but arg[0]
== "luatex", and context sets all args to nil, so my crude way of
determining the interpreter by cl args fails with both.
I tried something like "local string = utf or string" as well, but this works
only in context which has utf==unicode.utf8 or something.
Thanks for your help
Philipp
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next reply other threads:[~2010-07-22 9:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-22 9:51 Philipp Gesang [this message]
2010-07-22 9:55 ` Hans Hagen
2010-07-22 10:42 ` Philipp Gesang
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