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Code

\documentclass{article}
\usepackage{libertinus-otf}
\usepackage{showframe}
\usepackage{amsmath}
\usepackage{enumitem}
\usepackage{enumext}
\usepackage{fixdif}
\setenumext[enumext*]{widest=10,columns=2,label=(\arabic{enumi}-\arabic*),before=\everymath{\displaystyle}}
\newcommand{\myitem}[1]{\item #1 ;}
\begin{document}
\begin{enumerate}[start=3]
    \item \begin{enumext*}
    \item $\int x^2 \d x = \frac{x^3}{3} + C$ ;
    \item $\int x^2 \d x = \frac{x^3}{3} + C$ ;
    \item $\int x^2 \d x = \frac{x^3}{3} + C$ ;
    \item $\int x^2 \d x = \frac{x^3}{3} + C$ ;
    \end{enumext*}
    \item \begin{enumext*}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \end{enumext*}
\end{enumerate}
\end{document}

result

I want to put ; after each \item inside enumext* and it doesn't affect the outer enumerate.

Exploration

(1)I have tried samcarter's lualatex solution autopunc, but it doesn't work with enumext*;

(2) For Werner's solution with \renewcommand the enumerate, I don't know how to make it only affect only specific enumext*

(3) I have try the Iacobus1983's \myitem case, it worked(shown above), but is that possible to patch the \item but not with\myitem{<content>}, I prefer syntax of the original \item <something> but not \myitem{something}

Question

Is that better or elegant solution to automatically add something after each \item? I have looked through the enumitem and enumext, but only found hook like before,after and first, without which insert something after each \item's content.

Edited: what this originally for:

textbook

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  • Can you add please, why you want to do this? With math involved, I find this kind of presentation quite puzzling. E.g. as a reader I‘d like to see, how the mathematical Story continues. Rather, I have to decipher and discard in my mind some numerical „weeds“. Thank you Commented Aug 2 at 5:01
  • 1
    @MS-SPO okay, in some advanced mathmatics textbook, the intregral is listed so(edited). And this post, IMHO, is focused on "is there exist user-friendly hook after each \item's content". Commented Aug 2 at 7:14
  • 1
    Algebra is designed to be spoken aloud in a syntactically correct manner. Notice the . at the end of the last one. It is all one sentence. Commented Aug 2 at 8:41
  • @Cicada umm, you are right, but if this be paraphased as a complete sentence, I was still confrant with is how to align, it seemed that enumext-like package is good for something like this. Commented Aug 2 at 9:17
  • 1
    Ask a separate question. Aligning equations can be done different ways, Commented Aug 2 at 12:28

1 Answer 1

Reset to default
1

A tiling pattern x;x;x;x. is possible.

example

(I don't have enumext package.)

General method

If we do

\let\olditem\item

we have the original definition of \item available for later.

Now, the repeating unit is ; \item, and is acting as a delimiter. It first appears after the first entry and last appears before the last entry (x;x;x;x.). We can turn it into a convenient macro command,

\newcommand{\myitem}{;\olditem}

and if we do this

\let\item\myitem

it becomes even more convenient.

The first entry is special: it has no preceding ;, and is just an \olditem (the original definition of \item).

The last entry is also special: it has no following entry to supply it with a ;, and in any case it needs to have a . instead. After the last entry, the environment ends.

So what we can do is this: make the environment-ending process itself be the supplier of the . with:

\AddToHook{env/enumerate/end}{.}

Voilà!

MWE


\documentclass{article}
\usepackage{libertinus-otf}
%\usepackage{showframe}
\usepackage{amsmath}
\usepackage{enumitem}
%\usepackage{enumext}
\usepackage{fixdif}
%\setenumext[enumext*]{widest=10,columns=2,label=(\arabic{enumi}-\arabic*),before=\everymath{\displaystyle}}
\newcommand{\myitem}{;\olditem}
\let\olditem\item
\let\item\myitem

\AddToHook{env/enumerate/end}{.}

\begin{document}
\begin{enumerate}[start=3]
 %   \item \begin{enumext*}
    \olditem $\int x^2 \d x = \frac{x^3}{3} + C$ 
    \item $\int x^2 \d x = \frac{x^3}{3} + C$ 
    \item $\int x^2 \d x = \frac{x^3}{3} + C$ 
    \item $\int x^2 \d x = \frac{x^3}{3} + C$ 
%    \end{enumext*}
%    \item \begin{enumext*}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem{$\int x^2 \d x = \frac{x^3}{3} + C$}
    \myitem $\int x^2 \d x = \frac{x^3}{3} + C$ 
%    \end{enumext*}
\end{enumerate}
\end{document}

Note: braces after \myitem are not needed now.

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  • Good idea to achieve this! I thought about it again, and in fact, the purpose of listing environments is to "enumerate," and they don't seem like they should be "sentences"..... Commented Aug 3 at 6:37

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