%%
%% The LaTeX Companion, 3ed
%%
%% Example 7-3-2 on page I-531 in "float --- Creating new float types".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{183.0pt}
\setcounter{page}{1}
\setlength\textheight{11.2\baselineskip}
\addtolength\textwidth{-7pt}               % account for boxed float sticking out into margin
\setlength\textfloatsep{6pt}
\setlength\intextsep{6pt}
% for the book examples we shorten the
% vertical spaces and use a smaller font for
% the heading
\makeatletter
\renewcommand\section{\@startsection{section}{1}{\z@}%
                                    {-1ex \@plus-1ex \@minus-.2ex}%
                                    {.3ex}%
                                    {\normalfont\large\bfseries}}
\makeatother
\usepackage{float}
\floatstyle{boxed}
\newfloat{Series}{b}{los}[section]
\floatstyle{ruled}
\newfloat{XML}{H}{lox}
\floatname{XML}{XML Listing}
\newcommand\xmlcode[1]{\texttt{#1}}

%StartShownPreambleCommands
\usepackage{lipsum,float}
% Float types Series and XML and command
% \xmlcode as defined in previous example
%StopShownPreambleCommands

\begin{document}
\listof{XML}{XML Listings}
\listof{Series}{List of Series}
\section{New float environments}
\lipsum[1][1]
 \begin{Series} \caption{Euler's constant}
  \[ \mathrm{e}
     = 1 + \sum^\infty_{k=1} \frac{1}{k!}\]
\end{Series}
\empty
\begin{XML} \caption{A simple XML file}
 \xmlcode{<XMLphrase>Great fun!</XMLphrase>}
\end{XML}
\lipsum[1][2]
\begin{XML} \caption{Processing instruction}
 \xmlcode{<?xml version=''1.0''?>} \end{XML}
\lipsum[2]
\end{document}