[NTG-context] \description - indenting lines, "alternative=top"

[Wolfgang Schuster]

Am 10.04.2012 um 15:42 schrieb Procházka Lukáš Ing. - Pontex s. r. o.:

> On Tue, 10 Apr 2012 11:49:56 +0200, Wolfgang Schuster <schuster.wolfgang at googlemail.com> wrote:
> 
>> When you want a certain value in various places I would use \definemeasure to set it and \measure to access it.
>> 
>> \definemeasure[parindent][1em]
>> 
>> \define[1]\TestHeadCommand
>>  {\offset[x=-\measure{parindent}]{#1}}
>> 
>> \definedescription
>>  [test]
>>  [alternative=top,
>>   margin=\measure{parindent},
>>   headcommand=\TestHeadCommand]
>> 
>> \setupindenting[yes,\measure{parindent}]
>> 
>> \starttext
>> 
>> \input knuth
>> 
>> \starttest{Knuth}
>> \input knuth
>> \stoptest
>> 
>> \input knuth
>> 
>> \stoptext
>> 
>> Wolfgang
> 
> Great, I didn't know about the \measure way.
> 
> Still - when I don't want to specify the indenting value directly, as I am satisfied with the value which is set by \setupindenting[medium] - is there a way how to get the indenting value in this case?
> 
> I mean - what value of indenting is set by \setupindenting[small], \setupindenting[medium], \setupindenting[big]?

small = 1em
medium = 1.5em
big = 2em

> Are these values accessible anyhow? Via Lua?

They are stored in \parindent but descriptions have the setting “indenting=never” which set parindent to 0pt. \setupindenting uses internal register to store the value before to assigns it to parindent but it’s not meant to be used by a user.

Wolfgang