···<date: 2012-09-23, Sunday>···<from: Wolfgang Schuster>···
> It’s a expansion problem, you can either expand the content in the definition
> of \mogrify (as seen below)
> or you make the \mogrify command unexpanded and you expand the content of the
> \wwparameter
> (i.e. \doifsomething{…}{\normalexpanded{\mogrify{…}}})
Thanks a lot, I rewrote my macros according to your the first
suggestion and it works like a breeze.
Best regards
Philipp
>
> \unprotect
>
> \def\mogrify_scan#first#second#third#rest\relax
> {\def\m_mogrify_three{#first#second#third}%
> \def\m_mogrify_rest {#rest}}
>
> \def\mogrify#content%
> {\begingroup
> \edef\m_mogrify_content{#content}%
> \expandafter\mogrify_scan\m_mogrify_content\relax
> \colored [red]{\m_mogrify_three}%
> \colored[green]{\m_mogrify_rest }%
> \endgraf
> \endgroup}
>
> \installnamespace {ww}
> \installcommandhandler \????ww {ww} \????ww
>
> \appendtoks
> \setuevalue{\currentww}{\wont_work[\currentww]}
> \to \everydefineww
>
> \unexpanded\def\wont_work[#id]%
> {\edef\currentww{#id}%
> \dosingleempty\wont_work_indeed}
>
> \def\wont_work_indeed[#setups]#content%
> {\iffirstargument\setupcurrentww[#setups]\fi
> \doifsomething{\wwparameter{param}}{\mogrify{\wwparameter{param}}}%
> \endgraf
> \framed{#content}}
>
> \defineww[wontwork]
>
> \protect
>
> \starttext
>
> \mogrify{foobar}\par%% the macro does work in isolation
>
> \wontwork[param=whatever]{will it work?}
> \wontwork[param=] {this, however, does work}
>
> \stoptext
>
> Wolfgang
>
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