5 files changed, 42 insertions, 37 deletions
diff --git a/Master/texmf-dist/doc/latex/showexpl/README b/Master/texmf-dist/doc/latex/showexpl/README
deleted file mode 100644
index f16e1bc655f..00000000000
--- a/Master/texmf-dist/doc/latex/showexpl/README
+++ /dev/null
@@ -1,16 +0,0 @@
-showexpl
-========
-
-The LaTeX package 'showexpl' provides a way to typeset LaTeX source code and
-the related result in the same document. The `listings' package is required.
-See 'doc/showexpl-test.tex' for the details.
-
-Recommended TDS locations:
-
-   showexpl.sty:                             tex/latex/showexpl
-   README, showexpl.pdf, showexpl-test.pdf,
-   showexpl-test.tex, result-picture.pdf:    doc/latex/showexpl
-
-For general installation advice, see
-http://www.tex.ac.uk/cgi-bin/texfaq2html?label=instpackages
-
diff --git a/Master/texmf-dist/doc/latex/showexpl/README.md b/Master/texmf-dist/doc/latex/showexpl/README.md
new file mode 100644
index 00000000000..0c2fb4d52fe
--- /dev/null
+++ b/Master/texmf-dist/doc/latex/showexpl/README.md
@@ -0,0 +1,24 @@
+showexpl
+========
+
+The LaTeX package `showexpl` provides a way to typeset LaTeX source code and
+the related result in the same document. The `listings` package is required.
+See `doc/showexpl-test.tex` for the details.
+
+Recommended TDS locations:
+
+```text
+   showexpl.sty:                             tex/latex/showexpl
+   README, showexpl.pdf, showexpl-test.pdf,
+   showexpl-test.tex, result-picture.pdf:    doc/latex/showexpl
+```
+
+For general installation advice, see
+<http://www.tex.ac.uk/cgi-bin/texfaq2html?label=instpackages>
+
+The showexpl package is also on
+CTAN:[macros/latex/contrib/showexpl](http://www.ctan.org/tex-archive/macros/latex/contrib/showexpl)
+
+Rolf Niepraschk,
+email: Rolf.Niepraschk@gmx.de,
+2020-05-03
diff --git a/Master/texmf-dist/doc/latex/showexpl/showexpl-test.pdf b/Master/texmf-dist/doc/latex/showexpl/showexpl-test.pdf
index ed08ca09e95..a645e087aeb 100644
--- a/Master/texmf-dist/doc/latex/showexpl/showexpl-test.pdf
+++ b/Master/texmf-dist/doc/latex/showexpl/showexpl-test.pdf
diff --git a/Master/texmf-dist/doc/latex/showexpl/showexpl-test.tex b/Master/texmf-dist/doc/latex/showexpl/showexpl-test.tex
index 316049f555f..75b4664a5b4 100644
--- a/Master/texmf-dist/doc/latex/showexpl/showexpl-test.tex
+++ b/Master/texmf-dist/doc/latex/showexpl/showexpl-test.tex
@@ -1,36 +1,33 @@
 
-% Rolf Niepraschk, 2005-07-16, Rolf.Niepraschk@ptb.de
+% Rolf Niepraschk, 2020-05-03, Rolf.Niepraschk@gmx.de
 
 \listfiles\errorcontextlines=100
 \documentclass[a4paper,draft,twoside]{article}
 
 \usepackage[dvipsnames]{xcolor}
 \usepackage[textwidth=12cm,marginparwidth=4cm]{geometry}
-
 \usepackage[final]{showexpl}
 
-\usepackage[T1]{fontenc}
+\usepackage{iftex}
 
-\IfFileExists{luximono.sty}%
-{%
-  \usepackage[scaled]{luximono}%
-}
-{%
-  \IfFileExists{beramono.sty}%
-  {%
-    \usepackage[scaled]{beramono}%
-  }{}
-}
+\iftutex % LuaTeX, XeTeX
+  \usepackage{fontspec}
+  \setmonofont{DejaVuSansMono}[Scale=MatchUppercase]
+\else % old engines
+  \usepackage[T1]{fontenc}
+  \usepackage{lmodern}
+  \usepackage[scaled]{DejaVuSansMono}
+\fi
 
 \lstset{%
-    basicstyle=\ttfamily\small,
-    commentstyle=\itshape\ttfamily\small,
-    showspaces=false,
-    showstringspaces=false,
-    breaklines=true,
-    backgroundcolor=\color{lightgray},
-    breakautoindent=true,
-    captionpos=t
+  basicstyle=\ttfamily\small,
+  commentstyle=\itshape\ttfamily\small,
+  showspaces=false,
+  showstringspaces=false,
+  breaklines=true,
+  backgroundcolor=\color{lightgray},
+  breakautoindent=true,
+  captionpos=t
 }
 
 \iftrue
diff --git a/Master/texmf-dist/doc/latex/showexpl/showexpl.pdf b/Master/texmf-dist/doc/latex/showexpl/showexpl.pdf
index 31c82aad6d3..31c0ffac2e6 100644
--- a/Master/texmf-dist/doc/latex/showexpl/showexpl.pdf
+++ b/Master/texmf-dist/doc/latex/showexpl/showexpl.pdf