From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Problem with arguments in macro
Date: Mon, 21 Jan 2013 19:32:38 +0100 [thread overview]
Message-ID: <50FD89C6.8070807@wxs.nl> (raw)
In-Reply-To: <50FD8872.6090801@wanadoo.fr>
On 1/21/2013 7:26 PM, PELLOUIN Christophe wrote:
> Hello,
>
> When writing a macro, I observed that some arguments are not transmitted
> correctly, particularly when the type is defined as "text".
> Here is an example with the macro max defined in the file plain.mp
> With this program:
>
> beginfig(1)
>
> show("first test");
> show max (1,2,8,5,15,2,1,4);
>
> numeric u_;
> v_=15;
> show("second test");
> show max (1,2,8,5,v_,2,1,4);
>
> numeric u_;
> u_=15 % u_ variable is also defined in the macro max
> show("third test");
> show max (1,2,8,5,u_,2,1,4);
>
> endfig;
> end
>
> The result is:
>
> This is MetaPost, version 1.504 (kpathsea version 6.0.1)
> (mpost.mp (c:/texlive/2011/texmf-dist/metapost/base/plain.mp
> Preloading the plain mem file, version 1.004)) (./bizzare.mp
> >> "first test"
> >> 15
> >> "second test"
> >> 15
> >> "third test"
> >> 8 [1] )
> 1 output file written: bizzare.1
> Transcript written on bizzare.log.
>
>
>
> The third result is different because the variable u_ is defined in the
> macro max of the file plain.mp
I can protect all local plain variables if needed but I'll only do it if
someone then tests all the plain macros.
Hans
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next prev parent reply other threads:[~2013-01-21 18:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-21 18:26 PELLOUIN Christophe
2013-01-21 18:32 ` Hans Hagen [this message]
2013-01-21 19:47 ` PELLOUIN Christophe
2013-01-21 19:50 ` Hans Hagen
2013-01-21 20:25 ` PELLOUIN Christophe
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