# [NTG-context] option suggestion for \setupindenting

Hans Hagen pragma at wxs.nl
Thu Mar 6 22:26:43 CET 2014

```On 3/6/2014 9:06 PM, Pablo Rodriguez wrote:
> On 03/06/2014 08:38 PM, Wolfgang Schuster wrote:
>> Am 06.03.2014 um 19:35 schrieb Pablo Rodriguez:
>>>
>>> 	\leftskip2em
>>> 	\parindent-2em
>>>
>>> Would it be possible to have a reverse option in \setupindenting, whic
>>> could be applied with the other options?
>>>
>>> Many thanks for your help,
>>
>> \definestartstop
>>    [weird]
>>    [before={\startnarrow[left=2em,default=left]\setupindenting[yes,-2em]},
>>     after={\stopnarrow}]
>>
>> \setupindenting[yes,2em]
>
>
> I have a book that I want to typeset using ConTeXt, to show its author
> the results.
>
> \leftskip and \parindent work fine for me. The problem is the length. I
> need the reverse indenting only in the final chapter (it’s a book list,
> that I would like to avoid to input as a BibTeX bibliography).
>
> The book will have a general \setupindenting, but I don’t know whether
> it will be small, medium or big. And in the last chapter, I want this
> vaules to be the same, but with a reverse indenting.
>
> Here is the sample.
>
>      \setupindenting[yes,medium]
>
>      \starttext
>
>      \dorecurse{5}{\input knuth\par}
>
>      I can change indenting value, but I cannot get an inverse indenting.
>
>      \setupindenting[yes,small]
>
>      \dorecurse{5}{\input knuth\par}
>
>      \stoptext
>
>
> I think that \setupindenting[reverse] makes sense as an option. So the
> user can set inverse indentings for the whole document. And (s)he will
> have to change the value only once, if applied before as standard indenting.

reverse is a somewhat weird option specific for your case; what if you
also want to change other things; better is:

\defineindenting[whatever][yes,2cm]
%defineindenting[whatever][yes,-2cm]

\starttext
\setupindenting[yes,-2em] \input ward \par
\setupindenting[yes,2em]  \input ward \par
\setupindenting[whatever] \input ward \par
\stoptext

so i'll make a \defineindenting
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