2009/1/21 Wolfgang Schuster :

...

And in the main file I have:

\letterclosing{Hoogachtend}{Cecil Westerhof}

But I would like to have this as the default, so I could use:

\letterclosing

Beside that I would like to have the possibility to use:

\letterclosing{business} or \letterclosing{family}

This would then use defined values.

When the first parameter is filled, but not with a recognized value, then the second parameter should be filled. If not, the compilation of the file should generate an error. Is this something that can be done?

\long\def\letterbody#1% {{\blank[line]\setupindenting[yes,medium]#1\par}}

\def\letterclosing {\dodoublegroupempty\doletterclosing}

\def\doletterclosing#1#2% {\ifsecondargument \dodoletterclosing{#1}{#2}% \else \doifelsenothing{#1} {\doletterclosing{Hoogachtend,}{Cecil Westerhof}}% {\processaction [#1] [ family=>{\dodoletterclosing{Informal closing,}{Cecil Westerhof}}, business=>{\dodoletterclosing{Formal closing}{Cecil Westerhof}}, unknown=>{\errorisfataltrue\waitonfatalerror}]}% \fi}

\def\dodoletterclosing#1#2% {\blank[line]#1\blank[3*line]#2}

\setupindenting[yes,none]

\starttext

\letterbody{\dorecurse{2}{\input knuth\par}} \letterclosing{Hoogachtend,}{Cecil Westerhof}

\page

\letterbody{\dorecurse{2}{\input knuth\par}} \letterclosing{family}

\page

\letterbody{\dorecurse{2}{\input knuth\par}} \letterclosing{business}

\page

\letterbody{\dorecurse{2}{\input knuth\par}} \letterclosing{unknown}

\stoptext

Goes a long way. With two parameters it works. When using 'unknown' or 'dummy', I get \wait= messages. When giving enter, the document is still generated. But that is not a real problem. But when using: \letterclosing or \letterclosing{} I get the same wait= message and there is no letterclosing generated (or an empty one). Found the problem. \doifelsenothing{#1} {\doletterclosing{Hoogachtend,}{Cecil Westerhof}}% should be: \doifelsenothing{#1} {\doletterclosing{Hoogachtend,}{Cecil Westerhof}}% Now it seems to do what I want. -- Cecil Westerhof

2009/1/21 Wolfgang Schuster :

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When the first parameter is filled, but not with a recognized value, then the second parameter should be filled. If not, the compilation of the file should generate an error.

I did only what you wrote.

I was not clear enough again. What I mend was that when there is not a recognized value, then the output file should not be generated. When you give a return the file is still generated. But that is only a minor. (Maybe what I want is not possible.) -- Cecil Westerhof

Cecil Westerhof wrote: [snip]

Found the problem. \doifelsenothing{#1} {\doletterclosing{Hoogachtend,}{Cecil Westerhof}}% should be: \doifelsenothing{#1} {\doletterclosing{Hoogachtend,}{Cecil Westerhof}}%

Now it seems to do what I want.

I don't see the difference. Would you point it out for me? Thanks, Tad

2009/1/21 Tad Ashlock :

Cecil Westerhof wrote: [snip]

...

Found the problem. \doifelsenothing{#1} {\doletterclosing{Hoogachtend,}{Cecil Westerhof}}% should be: \doifelsenothing{#1} {\doletterclosing{Hoogachtend,}{Cecil Westerhof}}%

Now it seems to do what I want.

I don't see the difference. Would you point it out for me?

You are right, bad copying/pasting from me. It should be: \doifelsenothing{#1} {\dodoletterclosing{Hoogachtend,}{Cecil Westerhof}}% (dodo instead of do) -- Cecil Westerhof