setup parameter problem

setup parameter problem

[Hans van der Meer]

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The code below seems ok in \startsection[title=] but not when I program the parameter collection with \def\setupparameters{\getparameters[prefix]}
In that case even [title={enclosed value}] crashes with error message: Use of \doMacro doesn't match its definition.
Obviously I am missing something here. What?

\def\Macro{\dosingleargument\doMacro}
\def\doMacro[#1]#2{#1X#2}

The code below shows that it should be possible.
\startsection[title=\Macro{arg} no braces needed]\stopsection
\startsection[title={\Macro[arg1]{arg2} enclosed in braces}]\stopsection
\stoptext


dr. Hans van der Meer



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Re: setup parameter problem

[Hans Hagen]

On 6/7/2021 6:17 PM, Hans van der Meer wrote:
> The code below seems ok in \startsection[title=] but not when I program 
> the parameter collection with \def\setupparameters{\getparameters[prefix]}
> In that case even [title={enclosed value}] crashes with error message: 
> Use of \doMacro doesn't match its definition.
> Obviously I am missing something here. What?
> 
> \def\Macro{\dosingleargument\doMacro}
> \def\doMacro[#1]#2{#1X#2}
> 
> The code below shows that it should be possible.
> \startsection[title=\Macro{arg} no braces needed]\stopsection
> \startsection[title={\Macro[arg1]{arg2} enclosed in braces}]\stopsection
> \stoptext

just prevent expansion:

   \protected\def\Macro{\dosingleargument\doMacro}

   \def\doMacro[#1]#2{#1X#2}

and when you're in adventurous mode (which i know you are) try this:

   \protected\tolerant\def\Macro[#1]#;#2%
     {\ifparameter#1\or#1:\fi#2}

and when you for some reason do wan tto expand then, as in, do:

   \edef\foo{\expand\Macro[arg1]{arg2}}

etc etc

Hans

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