Do not wrap forceTLR in \L with babel and unicode engines

It does not seem to be needed, the \L macro is undefined, and there
does not seem to be an alternative.

diff --git a/src/Paragraph.cpp b/src/Paragraph.cpp
index 063bf324de3c5897c7792633aa41c71c7b782861..8f5f6f371d4cf399565d0aee3c953cb317b0a8fb 100644 (file)
--- a/src/Paragraph.cpp
+++ b/src/Paragraph.cpp
@@ -1094,16 +1094,21 @@ void Paragraph::Private::latexInset(BufferParams const & bparams,
        odocstream::pos_type const len = os.os().tellp();
 
        if (inset->forceLTR(runparams)
+           // babel with Xe/LuaTeX does not need a switch
+           // and \L is not defined there.
+           && (!runparams.isFullUnicode() || !runparams.use_babel)
            && running_font.isRightToLeft()
            // ERT is an exception, it should be output with no
            // decorations at all
            && inset->lyxCode() != ERT_CODE) {
-               if (runparams.use_polyglossia) {
+               if (runparams.use_polyglossia)
+                       // (lua)bidi
                        os << "\\LRE{";
-               } else if (running_font.language()->lang() == "farsi"
-                          || running_font.language()->lang() == "arabic_arabi")
+               else if (running_font.language()->lang() == "farsi"
+                        || running_font.language()->lang() == "arabic_arabi")
                        os << "\\textLR{" << termcmd;
                else
+                       // babel classic
                        os << "\\L{";
                close = true;
        }