From: Peter Rolf <indiego@gmx.net>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: system macros/doquadrupleemtpy
Date: Wed, 03 Sep 2008 20:32:05 +0200 [thread overview]
Message-ID: <48BED825.9090100@gmx.net> (raw)
In-Reply-To: <F55E008D-0D0E-4826-8B16-0A7EC3B2D6CD@uni-bonn.de>
Thomas A. Schmitz schrieb:
> Hi all,
>
> I'm trying to define a macro \Command which can either have four or
> five arguments. If it has five, I want to define them as
>
> \Command1[#1][#2][#3][#4]{#5}
>
> if it has four, as
>
> \Command2[#1][#2][#3]{4#}
>
> I thought this would be the way to go:
>
> \def\Command{%
> \doquadrupleempty\doCommand}
>
> \def\doCommand{%
> \iffifthargument%
> \doquadrupleargument\Command1%
> \else%
> \dotripleargument\Command2%
> \fi}
>
> but that gives me errors about "too many }s". So I'm wondering: am I
> on the wrong track? Can this be done at all?
>
Hi Thomas!
Hard to say for me whats wrong, but I think its a bad idea to use such
optional parameter commands in a nested way. Also there is no need for a
second parameter number check.
How about something like
\def\doCommand%
{\iffifthargument
\CommandA[#1][#2][#3][#4]{#5}%
\else\iffourthargument
\CommandB[#1][#2][#3]{#4}%
\else
% some error handling
\fi
\fi}
Best wishes, Peter
> Thanks, and best
>
> Thomas
> ___________________________________________________________________________________
> 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
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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
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___________________________________________________________________________________
next prev parent reply other threads:[~2008-09-03 18:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-03 14:41 Thomas A. Schmitz
2008-09-03 16:58 ` Aditya Mahajan
2008-09-04 7:39 ` Thomas A. Schmitz
2008-09-03 18:32 ` Peter Rolf [this message]
2008-09-04 6:45 ` Wolfgang Schuster
2008-09-04 8:21 ` Thomas A. Schmitz
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