v0.14: option headerrestate0.14

2 files changed, 48 insertions, 10 deletions

diff --git a/exercisesheets.sty b/exercisesheets.sty
index 006d9ed..6799a34 100644
--- a/exercisesheets.sty
+++ b/exercisesheets.sty
@@ -1,5 +1,5 @@
 %% exercisesheets.sty
-%% Copyright 2008-2022 Sebastian Kuhnert, Frank Fuhlbrück
+%% Copyright 2008-2023 Sebastian Kuhnert, Frank Fuhlbrück
 %
 % This work may be distributed and/or modified under the conditions
 % of the LaTeX Project Public License, either version 1.3c of this
@@ -18,8 +18,8 @@
 %\NeedsTeXFormat{LaTeX2e}[1994/12/01]
 
 % don't forget to update the version and date in exercisesheets.tex
-\def\exsh@version{0.13.1}
-\def\exsh@date{2022/11/22}
+\def\exsh@version{0.14}
+\def\exsh@date{2023/02/06}
 
 \ProvidesPackage{exercisesheets}[\exsh@date\space\exsh@version\space Typesetting of exercise sheets]
 \message{`Typesetting of exercise sheets' \exsh@version\space <\exsh@date>}
@@ -67,6 +67,7 @@
 \newif\ifexsh@beamerwithfootline
 \newif\ifexsh@beameruseblocks
 \newif\ifexsh@defersolutiontitle
+\newif\ifexsh@headerrestate
 \newif\ifexsh@framed
 \newif\ifexsh@fragile
 \fi
@@ -179,6 +180,8 @@
   beamersolution/.default=true,
   defersolutiontitle/.is if=exsh@defersolutiontitle,
   defersolutiontitle/.default=true,
+  headerrestate/.is if=exsh@headerrestate,
+  headerrestate/.default=true,
   framed/.is if=exsh@framed,
   framed/.default=true,
   fragile/.is if=exsh@fragile,
@@ -188,6 +191,7 @@
   beamerwithfootline/.initial={false},
   beameruseblocks/.initial={false},
   defersolutiontitle/.initial={false},
+  headerrestate/.initial={false},
   framed/.initial={false},
 }
 \else%--------- NON-BEAMER: ---------------------------------------
@@ -200,6 +204,8 @@
   beamersolution/.initial={ignore},
   defersolutiontitle/.default={ignore},
   defersolutiontitle/.initial={ignore},
+  headerrestate/.default={ignore},
+  headerrestate/.initial={ignore},
   framed/.default={ignore},
   framed/.initial={ignore},
   framed/.code={\let\newframe\relax},
@@ -1275,7 +1281,17 @@
   }{}%
 }
 
+\def\exsh@ensuresavetasks{%
+  \ifbool{exsh@savetasks}{}{%
+    \PackageError{exercisesheets}{%
+      If you want to restate something, you have to %
+      use the option savetasks.%
+    }{}%
+  }%
+}
+
 \def\restatetask{%
+  \exsh@ensuresavetasks%
   \@ifstar\exsh@restatetask@\exsh@restatetask%
 }
 
@@ -1365,18 +1381,30 @@
 \def\exsh@solutiontitle#1{
   \ifbool{exsh@beameruseblocks}{%
     \begin{alertblock}{}%
-    \pgfkeysvalueof{/exsh/solution title font}%
+    {\pgfkeysvalueof{/exsh/solution title font}%
       \pgfkeysvalueof{/exsh/strings/solution} %
       (\pgfkeysvalueof{/exsh/strings/exercise} \arabic{section}%
-        \ifnum\@enumdepth>0\alph{subex}\fi)%
+        \ifnum\@enumdepth>0\alph{subex}\fi)} %
+        \ifbool{exsh@headerrestate}{
+          \exsh@ensuresavetasks
+          \csname exsh@restatetask%
+          \ifnum\@enumdepth>0cur\else main\fi%
+          \endcsname%
+        }{}%
     \end{alertblock}
   }{
     \begin{beamercolorbox}[rounded=true,wd={#1}]%
         {block title alerted}
-      \pgfkeysvalueof{/exsh/solution title font}%
+      {\pgfkeysvalueof{/exsh/solution title font}%
       \pgfkeysvalueof{/exsh/strings/solution} %
       (\pgfkeysvalueof{/exsh/strings/exercise} \arabic{section}%
-        \ifnum\@enumdepth>0\alph{subex}\fi)%
+        \ifnum\@enumdepth>0\alph{subex}\fi)} %
+      \ifbool{exsh@headerrestate}{
+        \exsh@ensuresavetasks
+        \csname exsh@restatetask%
+        \ifnum\@enumdepth>0cur\else main\fi%
+        \endcsname%
+      }{}%
     \end{beamercolorbox}
   }
 }
diff --git a/exercisesheets.tex b/exercisesheets.tex
index 1bf1604..c41250f 100644
--- a/exercisesheets.tex
+++ b/exercisesheets.tex
@@ -1,5 +1,5 @@
 %% exercisesheets.tex
-%% Copyright 2008-2022 Sebastian Kuhnert, Frank Fuhlbrück
+%% Copyright 2008-2023 Sebastian Kuhnert, Frank Fuhlbrück
 %
 % This work may be distributed and/or modified under the conditions
 % of the LaTeX Project Public License, either version 1.3c of this
@@ -53,7 +53,7 @@
 \usepackage[english,iso]{isodate}
 \title{The \exsh Package}
 \author{Sebastian Kuhnert\and Frank Fuhlbrück}
-\date{Version 0.13.1, \printdateTeX{2022/11/22}}
+\date{Version 0.14, \printdateTeX{2023/02/06}}
 
 \begin{document}
 \maketitle
@@ -480,7 +480,10 @@ a starred version (\verb|\restatetask*| /
 All four have an optional argument that allows to restate
 a subtask instead of the main task. This argument is either
 \option{main}, a number of a \textbf{previous} subtask or
-\option{cur} for the current subtask.
+\option{cur} for the current subtask. Using \option{headerrestate}
+for your solution will automatically restate the current
+task within the beamer solution header (does noting without
+beamer). 
 
 
 
@@ -839,6 +842,13 @@ This also works well in combination with a make file that generates
 \label{sec:changelog}
 
 \begin{itemize}
+    \item[v. 0.14:]  2023-02-06
+      \begin{itemize}
+        \item new option \option{headerrestate} to restate
+        the current (if in subexercise) or main task within
+        a solutions header
+        \item bugfix: \verb|\restatetask| etc. give meaningful error if \option{savetasks} is not set.
+      \end{itemize}
     \item[v. 0.13.1:]  2022-11-22
       \begin{itemize}
         \item bugfix: \verb|\detokenize| filenames when