From: Philipp Gesang <gesang@stud.uni-heidelberg.de>
To: ConTeXt ML <ntg-context@ntg.nl>
Subject: need help with macro
Date: Sun, 23 Sep 2012 15:33:54 +0200 [thread overview]
Message-ID: <20120923133354.GA29608@phlegethon.router_intern> (raw)
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Hi all,
I have a macro “mogrify” that eats three tokens of a string and
treats them differently from the rest of the string. I can’t
however use it inside more complex macros. Is there a way out or
an alternative using macros? (No Lua.) Other formatting macros
work fine in the same place.
Any help will be greatly appreciated
Philipp
············· Example Code ············································
% macros=mkvi
\unprotect
\def\mogrify#content{%
\begingroup
\let\stopper\relax
\def\get_first_three##1##2##3##4\stopper{%
\def\first_three{##1##2##3}%
\def\rest{##4}%
}%
\get_first_three#content\stopper%
\colored[red]{\first_three}%
\colored[green]{\rest}%
\endgraf
\endgroup%
}
\installnamespace {ww}
\installcommandhandler \????ww {ww} \????ww
\appendtoks
\setuevalue{\currentww}{\wont_work[\currentww]}
\to \everydefineww
\unexpanded\def\wont_work[#id]{%
\edef\current_wont_work{#id}%
\dosingleempty\wont_work_indeed%
}
\def\wont_work_indeed[#setups]#content{%
\iffirstargument\setupcurrentww[#setups]\fi
%% here is the problem:
\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
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next reply other threads:[~2012-09-23 13:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-23 13:33 Philipp Gesang [this message]
2012-09-23 14:00 ` Wolfgang Schuster
2012-09-23 14:28 ` Philipp Gesang
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