From 41e0a376b50d2614a40ed17972ee2933b686354a Mon Sep 17 00:00:00 2001
From: Karl Berry <karl@freefriends.org>
Date: Sun, 13 Feb 2022 21:27:21 +0000
Subject: pyluatex (13feb22)

git-svn-id: svn://tug.org/texlive/trunk@62008 c570f23f-e606-0410-a88d-b1316a301751
---
 .../texmf-dist/doc/lualatex/pyluatex/pyluatex.pdf  | Bin 84163 -> 84169 bytes
 .../texmf-dist/doc/lualatex/pyluatex/pyluatex.tex  |   4 ++--
 .../texmf-dist/tex/lualatex/pyluatex/pyluatex.lua  |  26 ++++++++++++++-------
 .../texmf-dist/tex/lualatex/pyluatex/pyluatex.sty  |   2 +-
 4 files changed, 21 insertions(+), 11 deletions(-)

diff --git a/Master/texmf-dist/doc/lualatex/pyluatex/pyluatex.pdf b/Master/texmf-dist/doc/lualatex/pyluatex/pyluatex.pdf
index 23699dd22bd..173c053483c 100644
Binary files a/Master/texmf-dist/doc/lualatex/pyluatex/pyluatex.pdf and b/Master/texmf-dist/doc/lualatex/pyluatex/pyluatex.pdf differ
diff --git a/Master/texmf-dist/doc/lualatex/pyluatex/pyluatex.tex b/Master/texmf-dist/doc/lualatex/pyluatex/pyluatex.tex
index 594d1c0e90b..7446313863b 100644
--- a/Master/texmf-dist/doc/lualatex/pyluatex/pyluatex.tex
+++ b/Master/texmf-dist/doc/lualatex/pyluatex/pyluatex.tex
@@ -15,7 +15,7 @@
 \usepackage{url}
 \title{The \emph{pyluatex} package}
 \author{Tobias Enderle\\\url{https://github.com/tndrle/PyLuaTeX}}
-\date{v0.4.1 (2022/02/04)}
+\date{v0.4.2 (2022/02/13)}
 \begin{document}
 \maketitle
 \raggedright
@@ -143,7 +143,7 @@ For an example, see the Typesetting Code section.
   Specifies when the Python process is shut down. (default: \inlcode|veryveryend|)\\[0.5ex]
   \textit{Options:} \inlcode|veryveryend|, \inlcode|veryenddocument|, \inlcode|off|\\[0.5ex]
   PyLuaTeX uses the hooks of the package \textit{atveryend} to shut down the Python interpreter when the compilation is done. With the option \inlcode|veryveryend|, Python is shut down in the \inlcode|\AtVeryVeryEnd| hook. With the option \inlcode|veryenddocument|, Python is shut down in the \inlcode|\AtVeryEndDocument| hook. With the option \inlcode|off|, Python is not shut down explicitly. However, the Python process will shut down when the LuaTeX process finishes even if \inlcode|off| is selected. Using \inlcode|off| on Windows might lead to problems with SyncTeX, though.\\[0.5ex]
-  \textit{Example:} \inlcode|\usepackage[veryenddocument]{pyluatex}|
+  \textit{Example:} \inlcode|\usepackage[shutdown=veryenddocument]{pyluatex}|
 \end{itemize}
 Package options (except for \inlcode|executable| and \inlcode|shutdown|) can be changed in the document with the
 \inlcode|\pyoption| command, e.g. \inlcode|\pyoption{verbose}{true}| or \inlcode|\pyoption{ignoreerrors}{false}|.
diff --git a/Master/texmf-dist/tex/lualatex/pyluatex/pyluatex.lua b/Master/texmf-dist/tex/lualatex/pyluatex/pyluatex.lua
index f95ab989c08..f9d8ff68a65 100644
--- a/Master/texmf-dist/tex/lualatex/pyluatex/pyluatex.lua
+++ b/Master/texmf-dist/tex/lualatex/pyluatex/pyluatex.lua
@@ -33,7 +33,6 @@ pyluatex = pyluatex or {
 
 -- status.filename: path to pyluatex.sty
 local folder = file.pathpart(file.collapsepath(status.filename, true))
-local script = file.join(folder, "pyluatex-interpreter.py")
 local tcp = nil
 
 local env_end = nil
@@ -53,6 +52,7 @@ local function err_cmd(message)
 end
 
 function pyluatex.start(executable)
+    local script = file.join(folder, "pyluatex-interpreter.py")
     local is_windows = package.config:sub(1,1) ~= "/"
     local cmd
     if is_windows then
@@ -61,15 +61,25 @@ function pyluatex.start(executable)
         cmd = executable .. " \"" .. script .. "\" &"
     end
     local f = io.popen(cmd, "r")
-    local port = f:read("*l"):gsub("\r", ""):gsub("\n", "")
+    local port = f:read("*l")
     f:close()
 
-    if port then
-        tcp = socket.tcp()
-        tcp:connect("127.0.0.1", port)
-    else
-        tex.sprint(err_cmd("Python backend (executable: " .. executable ..
-                           ") could not be started"))
+    function err(message)
+        tex.sprint(err_cmd("Python backend could not be started (" .. message .. ")"))
+    end
+
+    if port == nil then
+        err("executable: " .. executable)
+        return
+    end
+    port = trim(port)
+    if port:match("^%d+$") == nil then
+        err("invalid TCP port: " .. port)
+        return
+    end
+    tcp = socket.tcp()
+    if tcp:connect("127.0.0.1", port) == nil then
+        err("TCP connection failed")
     end
 end
 
diff --git a/Master/texmf-dist/tex/lualatex/pyluatex/pyluatex.sty b/Master/texmf-dist/tex/lualatex/pyluatex/pyluatex.sty
index cf67916d198..6c247993a91 100644
--- a/Master/texmf-dist/tex/lualatex/pyluatex/pyluatex.sty
+++ b/Master/texmf-dist/tex/lualatex/pyluatex/pyluatex.sty
@@ -9,7 +9,7 @@
 %% version 2005/12/01 or later.
 
 \NeedsTeXFormat{LaTeX2e}
-\ProvidesPackage{pyluatex}[2022/02/04 v0.4.1 Execute Python code on the fly]
+\ProvidesPackage{pyluatex}[2022/02/13 v0.4.2 Execute Python code on the fly]
 
 \RequirePackage{expl3}
 \ExplSyntaxOn
-- 
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