Default values of nested lists

Question

What registers store the default values for lenghts and glues of the Latex nested lists?



Or how to calculate them? I have checked that they depend of the fontsize value.


\documentclass[a4paper,10pt]{article}

\begin{document}

\newcommand\registers{\the\leftmargin\\ \the\labelwidth[![is][1]][1]\\ \the\topsep}

\begin{enumerate}
\item \registers
    \begin{enumerate}
    \item \registers
         \begin{enumerate}
         \item \registers
                \begin{enumerate}
            \item \registers
            \end{enumerate}
        \end{enumerate}
    \end{enumerate}
\end{enumerate}

\end{document}

Answer 1

As found on this site somewhere--

From latex2e.pdf: "The \leftmargini through \leftmarginvi parameters define the distance between the left margin of the enclosing environment and the left margin of the list. By convention, \leftmargin is set to the appropriate \leftmarginN when a new level of nesting is entered. The defaults vary from ‘.5em’ (highest levels of nesting) to ‘2.5em’ (fist level), and are a bit reduced in two-column mode."

Also see texlive installation, in texmf-dist/tex/latex/base/article.cls, lines 337 to 352:

\if@twocolumn   \setlength\leftmargini  {2em} 
\else   
\setlength\leftmargini  {2.5em} 
\fi 
\leftmargin  \leftmargini 
\setlength\leftmarginii  {2.2em} 
\setlength\leftmarginiii {1.87em} 
\setlength\leftmarginiv  {1.7em} 
\if@twocolumn   
\setlength\leftmarginv  {.5em}   
\setlength\leftmarginvi {.5em} 
\else   
\setlength\leftmarginv  {1em}   
\setlength\leftmarginvi {1em} 
\fi  

But better to look in texmf-dist/source/latex/base/classes.dtx

Also see --https://tex.stackexchange.com/a/366237/197451