From: Philipp Gesang <pgesang@ix.urz.uni-heidelberg.de>
To: news3@nililand.de, mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: search path for require(...)
Date: Thu, 24 Mar 2011 11:50:47 +0100 [thread overview]
Message-ID: <20110324105047.GE3626@orcus> (raw)
In-Reply-To: <odl56l5wxihc.dlg@nililand.de>
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On 2011-03-24 <11:34:21>, Ulrike Fischer wrote:
> Am Thu, 24 Mar 2011 11:14:00 +0100 schrieb Philipp Gesang:
>
> >> I'm trying to store the virtual lua chess fonts I'm currently
> >> creating so that latex and context can use them.
> >>
> >> 1. At first I stored the vf-chess-XX.lua in tex/luatex. This works
> >> for latex but not for context. tex/generic works for both.
> >>
> >> 2. My fonts loads a lua-file which should be shared by all fonts
> >> with
> >>
> >> chessfss=require('chessfss')
> >>
> >> latex finds the chessfss.lua without problems in various locations
> >> (e.g. tex/generic) but context not. How can I solve this problem?
> >
> > Hi Ulrike,
> >
> > see also:
> > http://www.ntg.nl/pipermail/ntg-context/2010/047721.html
>
> Ah. chessfss = require('chessfss.lua') works in context. And it
> seems to work with latex too (I had somewhere in the back of my mind
> the thought that the ".lua" extension breaks with latex but can't
> reproduce it currently).
>
>
> > (You’re going to have to declare the table “chessfss” globally
> > for this to work.)
>
> The chessfss.lua has a "return Table" at the end which declares the
> table chessfss.
>
> To quote from http://lua-users.org/wiki/LuaModuleFunctionCritiqued:
>
> "The problems above can be avoided by not using the module function
> but instead defining modules in the following simple way: [*1][*2]
Of course, that’s the Lua way. I can’t guess what you’re up to
but if it’s going to eventually become a module, the “chessfss”
table should not pollute the global namespace. There are
canonical locations (check luat-ini.lua) where the functions and
data should go:
http://www.ntg.nl/pipermail/ntg-context/2010/054982.html
So you might be better off dropping “require” altogether and just
conclude your module with a line like:
thirddata = thirddata or { }
thirddata.chessfss = chessfss
instead of returning a table, then loading it with “loadluafile”.
Regards, Philipp
>
> -- hello/world.lua
> local M = {}
>
> local function test(n) print(n) end
> function M.test1() test(123) end
> function M.test2() M.test1(); M.test1() end
>
> return M
>
> and importing modules this way:
>
> local MT = require "hello.world"
> MT.test2()"
>
>
> --
> Ulrike Fischer
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive : http://foundry.supelec.fr/projects/contextrev/
> wiki : http://contextgarden.net
> ___________________________________________________________________________________
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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
next prev parent reply other threads:[~2011-03-24 10:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-24 9:50 Ulrike Fischer
2011-03-24 10:14 ` Philipp Gesang
2011-03-24 10:34 ` Ulrike Fischer
2011-03-24 10:50 ` Philipp Gesang [this message]
2011-03-24 11:41 ` Ulrike Fischer
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