How can I redisplay tcolorbox environments

Question

I created a new environment using \newtcolorbox, with auto numbering and a correctly-working TOC entry and everything. The individual items appear exactly where they should within the chapters. What I would like is to display all of these items again, at the end of a chapter or at the end of a part, or in an appendix or something. I don't want another TOC; I want to display the actual environment items, the way they appear in the main body of the text, again in one big collection. I haven't had any luck searching for an answer to this, so any advice will be greatly appreciated.

Answer 1

The recording feature of tcolorbox simplifies redisplaying of content. There are some approaches to use recording, I present only one here:

1. Define a tcolorbox environment, say displaythis which is meant for the first display of content and stores the content to a file named \jobname.display\thetcbcounter, which expands to \jobname.display1, \jobname.display2 etc.

2. Say

   record={\string\redisplaythis[#1]{\jobname.display\thetcbcounter}} 
   

   at the options list of the displaythis environment, which instructs tcolorbox to write \redisplaythis{#1}{\jobname.display\thetcbcounter} to the record file.

3. Define a total tcolorbox reddisplaythis which uses the mandatory argument in order to load the already stored content. (The \NewTotalTColorBox has the advantage, that the content of the box can be specified as well, contrary to tcolorbox)

4. Use \tcbstartrecording[myenvironments.env] before the first environment to be saved and \tcbstoprecording after the last one.

5. Apply \tcbinputrecords[myenvironments.env] for redisplay finally.

---

\documentclass{book}

\usepackage[most]{tcolorbox}


\usepackage{blindtext}

\makeatletter

\NewTColorBox[auto counter,list type=section,list inside=red]{displaythis}{O{}}{%
  enhanced, 
  sharp corners, 
  title={My nice Environment \thetcbcounter},
  saveto={\jobname.display\thetcbcounter},
  record={\string\redisplaythis[#1]{\jobname.display\thetcbcounter}},
  #1,
}

\NewTotalTColorBox[auto counter]{\redisplaythis}{O{}m}{
  enhanced, 
  sharp corners, 
  title={My nice Environment (again) \thetcbcounter},
  #1
}{\input{#2}}
\makeatother

\begin{document}

\tcbstartrecording[myenvironments.env]
\tcblistof{red}{List of environments}


\begin{displaythis}
\blindtext 
\end{displaythis}


\begin{displaythis}[colback=white!60!yellow]
\blindtext[2]
\end{displaythis}
\tcbstoprecording

\tcbinputrecords[myenvironments.env]

\end{document}