[dev-context] \hskip for hanging descriptions

[Hans Hagen]

On 11/14/2012 11:29 AM, Marco Patzer wrote:
> Hi Hans,
>
> do you have any objections changing the following \kern into a
> \hskip?
>
> \startsetups[\??constructionrenderings:\v!hanging]
>      % tricky: leftskipadaption is somewhat unpredictable
>      \let\\=\crlf
>      \noindent
>      \advance\leftskip-\leftskipadaption\relax
>      \ifdim\leftskipadaption=\zeropoint
>          \leftskipadaption1.5\emwidth\relax % just some default
>          \ifnum\c_strc_constructions_nested_state=\plusone
>              \ifdim\leftskip>\zeropoint \relax
>                  \leftskipadaption\leftskip
>              \fi
>          \fi
>      \fi
>      \ifnum\c_strc_constructions_nested_state>\zerocount % was
> \ifnum\c_strc_constructions_nested_state=\plusone
> \advance\leftskip\leftskipadaption % but we're already further on \fi
>      \hskip-\leftskipadaption\relax
>      \ifhbox\constructionheadbox\unhcopy\else\copy\fi\constructionheadbox
> - \kern\ifdim\constructionsheaddistance=\zeropoint .75\emwidth\else\constructionsheaddistance\fi
> + \hskip\ifdim\constructionsheaddistance=\zeropoint .75\emwidth\else\constructionsheaddistance\fi
> \useconstructionstyleandcolor\c!style\c!color \ignorespaces
> \stopsetups

changing skips/kerns is always somewhat dangerous as one suddenly can 
get unwanted breaks ... is there a use case?

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