%% File: centeredline.sty
%% Version: 1.2 (2022/10/10)
%% License: LPPL 1.3c
%% Copyright (C) 2019, 2022 Jean-Francois Burnol <jfbu at free dot fr>
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{centeredline}[2022/10/10 v1.2 centering a line the JFB way]
% \centeredline: OUR OWN LITTLE MACRO FOR CENTERING LINES
%
% March 7, 2013 : first version
% June 9,  2013 : \ignorespaces added
% Oct. 10, 2022 : \unpenalty\newline replaces \\\relax
%
% See README.md for documentation.
\newcommand*\centeredline{%
      \ifhmode \unpenalty\newline
        \def\centeredline@@{\hss\egroup\hskip\z@skip\ignorespaces}%
      \else
        \def\centeredline@@{\hss\egroup}%
      \fi
      \afterassignment\centeredline@
      \let\next=}%
\def\centeredline@
    {\hbox to \linewidth \bgroup \hss \bgroup \aftergroup\centeredline@@}%
\endinput