endnotes (4jan20)

git-svn-id: svn://tug.org/texlive/trunk@53319 c570f23f-e606-0410-a88d-b1316a301751

4 files changed, 38 insertions, 6 deletions

diff --git a/Master/texmf-dist/doc/latex/endnotes/README.md b/Master/texmf-dist/doc/latex/endnotes/README.md
new file mode 100644
index 00000000000..3c4ca3c0200
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/endnotes/README.md
@@ -0,0 +1,2 @@
+# endnotes
+Place footnotes at the end
diff --git a/Master/texmf-dist/doc/latex/endnotes/endnotes.pdf b/Master/texmf-dist/doc/latex/endnotes/endnotes.pdf
index cf5f5cecafb..f1ea18f1c18 100644
--- a/Master/texmf-dist/doc/latex/endnotes/endnotes.pdf
+++ b/Master/texmf-dist/doc/latex/endnotes/endnotes.pdf
diff --git a/Master/texmf-dist/doc/latex/endnotes/endnotes.tex b/Master/texmf-dist/doc/latex/endnotes/endnotes.tex
index a2ded227a1b..4c87fba0242 100644
--- a/Master/texmf-dist/doc/latex/endnotes/endnotes.tex
+++ b/Master/texmf-dist/doc/latex/endnotes/endnotes.tex
@@ -1,7 +1,5 @@
 \documentclass[pagesize=auto]{scrartcl}
 
-\usepackage{fixltx2e}
-\usepackage{etex}
 \usepackage{lmodern}
 \usepackage[T1]{fontenc}
 \usepackage{textcomp}
@@ -23,8 +21,9 @@
 \addtokomafont{title}{\rmfamily}
 
 \title{The \pkg{endnotes} package}
-\author{John Lavagnino\thanks{Centre for Computing in the Humanities, King's College London}~~(\mail{John.Lavagnino@kcl.ac.uk})}
-\date{15 January 2003}
+\author{John Lavagnino\thanks{Centre for Computing in the Humanities, King's College London}\thanks{Now Maintained by the \LaTeX3 project, \url{https://github.com/rf-latex/endnotes}}}
+
+\date{2020-01-02}
 
 
 \begin{document}
@@ -142,6 +141,14 @@ by itself will work.)
 
 \item[JL] John Lavagnino, 15 January 2003: fix my garbled version of
   Frank's updates.
+ 
+\item[JS] Modification by Jürgen Spitzmüller, 17.\,8.\,2019:
+
+  Do not break but just warn if \verb|\theendnotes| is used, but no
+  endnotes have been inserted yet.
+
+  If the last remaining \verb|\endnote| is removed, clear the \verb|*.ent|
+  auxiliary file.
 
 \end{labeling}
 
diff --git a/Master/texmf-dist/tex/latex/endnotes/endnotes.sty b/Master/texmf-dist/tex/latex/endnotes/endnotes.sty
index d3ef6514baa..7d428d167d2 100644
--- a/Master/texmf-dist/tex/latex/endnotes/endnotes.sty
+++ b/Master/texmf-dist/tex/latex/endnotes/endnotes.sty
@@ -4,9 +4,10 @@
 %       *              ENDNOTES                *
 %       ****************************************
 %
-%  Date of this version: 15 January 2003.
+%  Date of this version: 02 January 2020.
 %
 %% Copyright 2002 John Lavagnino
+%% Copyright 2019-2020 LaTeX3 Project
 %%
 %% This file may be distributed and/or modified under the
 %% conditions of the LaTeX Project Public License, either version 1.2
@@ -114,6 +115,11 @@
 % Frank's updates.
 %
 %
+% Jürgen Spitzmüller 2019-08-17: just warn if \verb|\theendnotes| is
+% used, but noendnotes have been inserted yet.
+%
+% Jürgen Spitzmüller 2020-01-02: ensure .ent file is cleared.
+%
 %       ****************************************
 %       *        ENDNOTE COMMANDS              *
 %       ****************************************
@@ -254,6 +260,8 @@
 %       ****************************************
 %
 
+\ProvidesPackage{endnotes}[2020-01-02 endnotes package]
+
 \@definecounter{endnote}
 \def\theendnote{\@arabic\c@endnote}
 
@@ -283,6 +291,7 @@
 
 \newwrite\@enotes
 \newif\if@enotesopen \global\@enotesopenfalse
+\newif\if@haveenotes \global\@haveenotesfalse
 
 \def\@openenotes{\immediate\openout\@enotes=\jobname.ent\relax
       \global\@enotesopentrue}
@@ -296,6 +305,7 @@
 % of the lines wind up being quite short.
 
 \long\def\@endnotetext#1{%
+     \global\@haveenotestrue
      \if@enotesopen \else \@openenotes \fi
      \immediate\write\@enotes{\@doanenote{\@theenmark}}%
      \begingroup
@@ -309,6 +319,7 @@
 % have, requiring the use of \protect for fragile commands.
 
 \long\def\addtoendnotes#1{%
+     \global\@haveenotestrue
      \if@enotesopen \else \@openenotes \fi
      \begingroup
         \newlinechar='40
@@ -316,6 +327,16 @@
         \immediate\write\@enotes{#1}%
      \endgroup}
 
+% Check at document end if endnotes have been inserted;
+% if not, assure the *.ent file is cleared if it exists.
+\AtEndDocument{%
+     \if@haveenotes\else
+         \IfFileExists{\jobname.ent}{
+            \if@enotesopen\else\@openenotes\fi
+            \addtoendnotes{}}{}
+     \fi
+}
+
 %  End of unique endnote code
 
 \def\endnotemark{%
@@ -411,7 +432,9 @@
     \def\@endanenote{\par\endgroup}%
     \enoteheading
     \enotesize
-    \input{\jobname.ent}%
+    \InputIfFileExists{\jobname.ent}{}{%
+       \PackageWarning{endnotes}{No endnotes found (file \jobname.ent does not exist)\MessageBreak}
+    }%
   \endgroup}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%