Re: How to "\processcommalist"?

[Hans Hagen <pragma@wxs.nl>]

Mojca Miklavec wrote:
> Taco Hoekwater wrote:
> 
>>Mojca Miklavec wrote:
>>
>>>I would like to define a command, which would be called in the following way:
>>>    \TheBossWantsTheWorkToBeDoneOn[monday,wednesday,thursday]{tidy up}
>>>
>>>so that it would be equivalent to:
>>>    \WeHaveToDo[monday]{tidy up}
>>>    \WeHaveToDo[wednesday]{tidy up}
>>>    \WeHaveToDo[thursday]{tidy up}
>>>
>>>I played a bit with different variants of \processcommalist, but I
>>>can't figure out how to use it in this particular case.
>>
>>The trick is to store the tidy up inside the processing command,
>>like so:
>>
>>   \def\WeHaveToDo[#1]#2{\message{(#1: #2)}}
>>
>>   \def\TheBossWantsTheWorkToBeDoneOn[#1]#2%
>>     {\begingroup
>>      \def\processitem##1{\WeHaveToDo[##1]{#2}}%
>>      \processcommalist[#1]\processitem
>>      \endgroup }
>>
>>   \TheBossWantsTheWorkToBeDoneOn[monday,wednesday,thursday]{tidy up}
> 
> 
> Great, thanks Taco! It works. It seems easier than I thought, but I
> could have spent hours looking for the proper solution alone.

Actually, there is an easier way to do this; just swap the arguments to WeHaveToDo:

\def\TheBossWantsTheWorkToBeDoneOn[#1]#2%
   {\processcommalist[#1]{\WeHaveToDo{#2}}}

\def\WeHaveToDo#1#2{(#2: #1)}

\starttext

\TheBossWantsTheWorkToBeDoneOn[monday,wednesday,thursday]{tidy up}

\stoptext

btw, nice thread for a wiki entry

> I hope this will land in the t-rsteps module (\OnSteps[1,2,3,6]{...}).
> 
> 
>>>Is there also a possibility to define a command like
>>>    \IHaveToDoTheTasks[1-4,7,9-11]{until tomorrow}
>>
>>There was not, but knowing Hans I trust that soon there will be :-).

hm, well, it does rain outside, but ...

Hans

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