Make hint to use in another chapter

Question

Consider the following MWE:

\documentclass[12pt]{book}
\usepackage{exsheets}
\SetupExSheets[solution]{print=true}
\begin{document}
    \begin{question}
         This is a question
\end{question}

\begin{solution}
This is an answer       
\end{solution}  


\end{document}

I'm trying to beside the solution environment, I have a hint for each question such that those hint printed according to 'chapter number.question number' in the chapter Hints. How it could possible to define such a command or environment? Consider the following MWE:

\documentclass[twoside,a4paper,cleardoublepage=empty,14pt]{book}
\usepackage{environ}
\usepackage{exsheets}
\SetupExSheets[question]{type=exam}
\SetupExSheets{counter-format=ch.qu[1]}
\RenewQuSolPair{question}[headings-format=\large\bfseries,name=Problem]{solution}
\usepackage{environ}
\makeatletter
\NewEnviron{hint}{%
    \def@currentlabel{\BODY}\label{hint:\thequestion}%
}
\usepackage{pgffor}
\newcommand\printmyhints{%
\foreach \x in {1,...,\thequestion}{% 

    \noindent
    \thechapter.\x.~\ref{hint:\x}\par
}

}
\makeatother
\begin{document}
\chapter{Analysis of Algorithms}

\begin{question}
    Which of the following answers is correct for the given recurrence relation?

\end{question}
\begin{hint}
    a hint is here!
\end{hint}
\begin{solution}
    this is a solution
\end{solution}
\chapter{answer Sheet}

    \printmyhints



\end{document}

The problem of above code is hints must has counter 1.1,1.2 but those get started from chapter 2.

You can check this: https://tex.stackexchange.com/questions/673420/collecting-hints-to-exercises-with-xsim — Krishna, Feb 04 '24 at 02:16

John Kormylo · Accepted Answer · 2023-11-08T13:22:08.247

The trick is to store the chapter and question number with the hint and to use a separate counter for the hints (labels).

I also gratuitously replaced \foreach with a TeX \loop. Just remember to loop over the hint counter.

BTW, this qualifies as the aux file approach.

\documentclass[twoside,a4paper,cleardoublepage=empty,14pt]{book}
\usepackage{environ}
\usepackage{exsheets}
\SetupExSheets[question]{type=exam}
\SetupExSheets{counter-format=ch.qu[1]}
\RenewQuSolPair{question}[headings-format=\large\bfseries,name=Problem]{solution}
\usepackage{environ}
\newcounter{hint}
\makeatletter
\NewEnviron{hint}{\refstepcounter{hint}%
    \edef@currentlabel{\thechapter.\thequestion~\BODY}%
    \label{hint:\thehint}%
}
\newcommand\printmyhints{% you could use \foreach, but this is faster
\bgroup% use local registers
  \count1=\value{hint}% a macro would also work
  \setcounter{hint}{0}%
  \loop\ifnum\value{hint}<\count1
    \stepcounter{hint}%
    \noindent\ref{hint:\thehint}\par
  \repeat
\egroup}
\makeatother
\begin{document}
\chapter{Analysis of Algorithms}

\begin{question}
    Which of the following answers is correct for the given recurrence relation?

\end{question}
\begin{hint}
    a hint is here!
\end{hint}
\begin{solution}
    this is a solution
\end{solution}
\chapter{answer Sheet}

    \printmyhints



\end{document}

This shows a savebox approach. In order to allow multiline text, it uses \vbox instead of \hbox style saveboxes. udbox is a \vbox version of lrbox.

\documentclass[twoside,a4paper,cleardoublepage=empty,14pt]{book}
\usepackage{environ}
\usepackage{exsheets}
\SetupExSheets[question]{type=exam}
\SetupExSheets{counter-format=ch.qu[1]}
\RenewQuSolPair{question}[headings-format=\large\bfseries,name=Problem]{solution}
%\usepackage{showframe}
\makeatletter
\def\udbox#1{% fragile
  \edef\reserved@a{%
  \endgroup
  \setbox#1\vbox{%
  \begingroup\aftergroup}%
  \def\noexpand@currenvir{@currenvir}%
  \def\noexpand@currenvline{\on@line}}%
  \reserved@a
  @endpefalse
  \color@setgroup
  \ignorespaces}
\def\endudbox{\unskip\color@endgroup}
\makeatother
\newsavebox{\hintbox}
\newenvironment{hint}{\begin{udbox}{\hintbox}%
  \unvbox\hintbox
  \noindent\thechapter.\thequestion\space}%
{\end{udbox}%
  \global\setbox\hintbox=\copy\hintbox}
\newcommand\printmyhints{\usebox\hintbox}
\begin{document}
\chapter{Analysis of Algorithms}

\begin{question}
    Which of the following answers is correct for the given recurrence relation?

\end{question}
\begin{hint}
  Consider the following:
  %\hrule
  \begin{itemize}
    \item test
  \end{itemize}
\end{hint}
\begin{solution}
    this is a solution
\end{solution}
\chapter{answer Sheet}

    \printmyhints


\end{document}

Could you look at this? https://tex.stackexchange.com/questions/700511/generating-bubble-answer-sheet — tstt, Nov 06 '23 at 16:50
If I put for example some \item in the Hint environment, it doesn't work. How is it possible to resolve this? — tstt, Nov 07 '23 at 17:37
Occasionally , I must write an itemize environment in hint environment but I get error. How I can resolve this? Thanks — tstt, Nov 08 '23 at 06:30
I use environment solution for other purpose, so I shouldn't use that to print bubble in that. From this argument I decide to introduce environment correctchoice, Could you according to this observation modify correctchoice to accept \buuble command? Thank you — tstt, Nov 08 '23 at 09:30
The problem seems to occur in the \edef stage. \protected@edef doesn't help. This may be inherent in the environ \BODY approach. — John Kormylo, Nov 08 '23 at 12:38

Make hint to use in another chapter

1 Answers1

Linked