Re: [NTG-context] setuphead for in-paragraph head ?

12 Jan 2014

      Am 12.01.2014 um 21:47 schrieb Otared Kavian :
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On 12 janv. 2014, at 21:30, Wolfgang Schuster  wrote:
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Am 11.01.2014 um 20:01 schrieb Otared Kavian :
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I will put this example on the wiki, but before doing so I have another question:
can one add two automatic links at the end of each question so that one can navigate easily to the respective hint or answer corresponding to that question? Indeed if this were possible, one would add also two automatic links to each hint going to its question and the corresponding answer, and two other links to each answer going to its hint and question. One can do this manually by adding a reference to each question, each hint and each answer, but it would be nice to have this done automatically.
Not without writing your own environment where you generate a unique reference for each question, hint and answer.
If I understand well, one way might be something like (where \theQuestionNumber stands for the number given by \startquestion)
\define\StartQuestion{\startquestion[Q:\theQuestionNumber]}
\define\StartHint{\startquestion[H:\theQuestionNumber]}
\define\StartAnswer{\startquestion[A:\theQuestionNumber]}
\define\StopQuestion{\par\in{Hint}[H:\theQuestionNumber]\par \in{Answer}[A:\theQuestionNumber]\stopquestion}
\define\StopHint{\par\in{Question}[Q:\theQuestionNumber]\par \in{Answer}[A:\theQuestionNumber]\stophint}
\define\StopAnswer{\par\in{Question}[Q:\theQuestionNumber]\par \in{Hint}[H:\theQuestionNumber]\stopquestion}
and then using \StartQuestion \StopQuestion, etc, instead of \startquestion \stopquestion.
But how can I refer to the \theQuestionNumber set by \startquestion?
When you have only questions and answers you can use the coupling key but in your case something like below is necessary:

\defineenumeration[Question]
\defineenumeration[Answer]

\define\startquestion
  {\increment\QuestionCounter
   \expanded{\startQuestion[reference=Question:\QuestionCounter]}}

\define\stopquestion
  {\stopQuestion
   \par
   \in{Answer}[Answer:\QuestionCounter]}

\define\startanswer
  {\expanded{\startAnswer[reference=Answer:\QuestionCounter]}}

\define\stopanswer
  {\stopAnswer
   \par
   \in{Question}[Question:\QuestionCounter]}

\setupinteraction[state=start]

\starttext

\startquestion
What is the answer to life the universe and everything?
\stopquestion

\page

\startanswer
42.
\stopanswer

\stoptext

Wolfgang