[NTG-context] \doifdefinedelse and \write

[Peter Münster]

On Fri, 14 Apr 2006, Hans Hagen wrote:

> > \def\myMacro#1{\doifdefinedelse{myTest#1}{Yes}{No}}
> > \def\myTestfile{\jobname-test.tmp}
> > \def\myTestbla{just a test}
> > \starttext
> > \immediate\write18{echo \myMacro{bla} \myMacro{blub} >\myTestfile}
> > \typefile{\myTestfile}
> > \stoptext
> >
> \def\myMacro#1{\ifundefined{myTest#1}Yes\else No\fi}
> 
> (see definition of \doifdefinedelse: it does some clever things in order 
> to handle messy #1's)

Great, thanks for your fast help!
I tried a lot of things with \expanded{} and \unexpanded but I've never
thought of looking for another if-else command...
Thanks, Peter

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