# counter name for NewTasks environment

I'm using tasks (as a subset of exsheets) to create environments exer2 and exer3 which organize exercise sets in a calculus workbook into rows and columnns. I am also using the exsheets environments question and solution to keep track of the solutions and print them up in an orderly fashion.

I know that the name of the first level {enumerate} counter is enumi as shown in line 9 of the preamble. What I do not know is the name of the counter in the environments created by tasks. When I use the syntax suggested in section 7.6, pp 13-14 of the exsheets manual, I get a text echo "tsk[a]", not the counter.

I can handle the final formatting of the labels in solutions, I just need to know how to get the "a, b, c" instead of "1 tsk[a], 1 tsk[a], 1 tsk[a]".

What am I missing here?

[Included below: TeX code in its entirety, output from MS Word to show what I want and what I'm getting from LaTeX]

\documentclass[12pt,letterpaper,fleqn,titlepage,openany,oneside]{book}
\usepackage{comment}
\usepackage[left=.75in, right=.75in, top=1in, bottom=1in]{geometry}
\usepackage{setspace}
\usepackage[inline]{enumitem}
\usepackage{exsheets}
\SetupExSheets{counter-format=\arabic{enumi}~tsk[a]}
% ENVIRONMENTS FOR EXERCISES USING TASKS

\begin{document}
\begin{enumerate}
\item First exercise set.
\begin{exer3}
\exercise % THIS IS THE COUNTER WHOSE NAME I WANT
\begin{question}
Set one exercise one
\end{question}
\begin{solution}
Set one solution one\\
\hrule \vspace{6pt}
\end{solution}
\exercise
\begin{question}
Set one exercise two
\end{question}
\begin{solution}
Set one solution two\\
\hrule \vspace{6pt}
\end{solution}
\exercise
\begin{question}
Set one exercise three
\end{question}
\begin{solution}
Set one solution three\\
\hrule \vspace{6pt}
\end{solution}
\end{exer3}
\end{enumerate}

\begin{enumerate}[resume]
\item Second exercise set.
\begin{exer2}
\exercise
\begin{question}
Set two exercise one
\end{question}
\begin{solution}
Set two solution one\\
\hrule \vspace{6pt}
\end{solution}
\exercise
\begin{question}
Set two exercise two
\end{question}
\begin{solution}
Set two solution two\\
\hrule \vspace{6pt}
\end{solution}
\end{exer2}
\end{enumerate}

\hrule \vspace{2pt} \hrule \vspace{6pt}

\printsolutions

\end{document}

What I want:

1a. Set one solution one
________________________________________
1b. Set one solution two
________________________________________
1b. Set one solution three
________________________________________
2a. Set two solution one
________________________________________
2b. Set two solution two
________________________________________

What I get:

Solution 1 tsk[a]   Set one solution one
________________________________________
Solution 1 tsk[a]   Set one solution two
________________________________________
Solution 1 tsk[a]   Set one solution three
________________________________________
Solution 2 tsk[a]   Set two solution one
________________________________________
Solution 2 tsk[a]   Set two solution two
________________________________________

You're using tasks in a way I never imagined…

You have to make the tasks counter (which actually is an internal expl3 integer) known to exsheets pattern reader:

\ExplSyntaxOn
\ExplSyntaxOff

\documentclass{book}
\usepackage[inline]{enumitem}
\ExplSyntaxOn
\ExplSyntaxOff

\SetupExSheets{
question/pre-hook = \vspace{-24pt},
question/post-hook = \vspace{-12pt},
solution/post-hook = \par \hrule \vspace{6pt} ,
counter-format=\arabic{enumi}~tsk[a]
}

before-skip=6pt,
after-skip=6pt,
after-item-skip=0pt,
item-indent=24pt,
label-width=6pt,
label-offset=12pt,
counter-format=tsk[a].~]{exer3}[\exercise](3)
before-skip=6pt,
after-skip=6pt,
after-item-skip=0pt,
item-indent=24pt,
label-width=6pt,
label-offset=12pt,
counter-format=tsk[a].~]{exer2}[\exercise](2)

\begin{document}

\begin{enumerate}
\item First exercise set.
\begin{exer3}
\exercise
\begin{question}
Set one exercise one
\end{question}
\begin{solution}
Set one solution one
\end{solution}
\exercise
\begin{question}
Set one exercise two
\end{question}
\begin{solution}
Set one solution two
\end{solution}
\exercise
\begin{question}
Set one exercise three
\end{question}
\begin{solution}
Set one solution three
\end{solution}
\end{exer3}
\end{enumerate}

\begin{enumerate}[resume]
\item Second exercise set.
\begin{exer2}
\exercise
\begin{question}
Set two exercise one
\end{question}
\begin{solution}
Set two solution one
\end{solution}
\exercise
\begin{question}
Set two exercise two
\end{question}
\begin{solution}
Set two solution two
\end{solution}
\end{exer2}
\end{enumerate}

\hrule \vspace{2pt} \hrule \vspace{6pt}

\printsolutions

\end{document}
• I will try that. Sep 17 '16 at 0:19
• @user114366 Where did you fail? I added a modified version of your example to my answer to show you that it's easy Sep 17 '16 at 7:25
• I thought that I typed it identically to what you gave me (with the spaces) and the compiler returned an undefined control sequence error for the \end{exer3} line with a reference to g_. So I copied and pasted what you gave me and it worked. Now I see the double underbar between g and tasks. Well, duh. I NEVER would have figured this one out on my own. Sep 17 '16 at 15:32
• Now, by using `headings=runin-nr' with what you gave me, I've almost got what I want. Is there an easy way to get the label "3.c" to not be boldface? Or should I open a new question? Sep 17 '16 at 15:38

I could not get that to work, but I did figure out a different answer after reading some other posts on the forum

\usepackage{etoolbox}
\AtBeginEnvironment{exer2}{\setcounter{question}{0}}
\AtBeginEnvironment{exer3}{\setcounter{question}{0}}
\SetupExSheets{counter-format=\arabic{enumi}.\alph{question}}

appears to be working.