commit 32b5d253d1b7e36c6389728039e45d97e8cca85e
Author: Juergen Spitzmueller <[email protected]>
Date:   Wed Dec 28 11:42:59 2022 +0100

    tex2lyx: consider utf8 default encoding in newer LaTeX
---
 src/tex2lyx/Preamble.cpp |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/tex2lyx/Preamble.cpp b/src/tex2lyx/Preamble.cpp
index 98b95e8..63e6c63 100644
--- a/src/tex2lyx/Preamble.cpp
+++ b/src/tex2lyx/Preamble.cpp
@@ -17,6 +17,7 @@
 #include "tex2lyx.h"
 
 #include "Encoding.h"
+#include "LaTeXPackages.h"
 #include "LayoutFile.h"
 #include "Lexer.h"
 #include "TextClass.h"
@@ -757,7 +758,11 @@ void Preamble::handle_package(Parser &p, string const & 
name,
                registerAutomaticallyLoadedPackage("fontspec");
                if (h_inputencoding == "auto-legacy")
                        p.setEncoding("UTF-8");
-       }
+       } else if (h_inputencoding == "auto-legacy"
+                  && LaTeXPackages::isAvailableAtLeastFrom("LaTeX", 2018, 04))
+               // As of LaTeX 2018/04/01, utf8 is the default input encoding
+               // So use that if no inputencoding is set
+               h_inputencoding = "utf8";
 
        // vector of all options for easier parsing and
        // skipping
@@ -1694,8 +1699,10 @@ void Preamble::handle_package(Parser &p, string const & 
name,
                                        cerr << "Unknown encoding " << encoding
                                             << ". Ignoring." << std::endl;
                        } else {
-                               if (!enc->unsafe() && options.size() == 1 && 
one_language == true)
+                               if (!enc->unsafe() && options.size() == 1 && 
one_language == true) {
                                        h_inputencoding = enc->name();
+                                       docencoding = enc->iconvName();
+                               }
                                p.setEncoding(enc->iconvName());
                        }
                        options.clear();
-- 
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