X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Foutput_latex.cpp;h=517ef13d22d17da0ca5927c680a7c37d6349b7ba;hb=1e519d1115f41f71c253cb9e2fbb7803e9a583a9;hp=60bc9f3d5970ee92f41b37622e15faf17bee25ce;hpb=af9838fd32f20f80c8e8af30aa0114abe1412160;p=lyx.git

diff --git a/src/output_latex.cpp b/src/output_latex.cpp
index 60bc9f3d59..517ef13d22 100644
--- a/src/output_latex.cpp
+++ b/src/output_latex.cpp
@@ -305,10 +305,11 @@ static TeXEnvironmentData prepareEnvironment(Buffer const & buf,
 
 	// in multilingual environments, the CJK tags have to be nested properly
 	data.cjk_nested = false;
-	if (!bparams.useNonTeXFonts && (bparams.inputenc == "auto-legacy"
-									|| bparams.inputenc == "auto-legacy-plain")
-		&& data.par_language->encoding()->package() == Encoding::CJK
-		&& state->open_encoding_ != CJK && pit->isMultiLingual(bparams)) {
+	if (!bparams.useNonTeXFonts
+	    && (bparams.inputenc == "auto-legacy"
+		|| bparams.inputenc == "auto-legacy-plain")
+	    && data.par_language->encoding()->package() == Encoding::CJK
+	    && state->open_encoding_ != CJK && pit->isMultiLingual(bparams)) {
 		if (prev_par_language->encoding()->package() == Encoding::CJK) {
 			os << "\\begin{CJK}{"
 			   << from_ascii(data.par_language->encoding()->latexName())
@@ -1194,7 +1195,7 @@ void TeXOnePar(Buffer const & buf,
 	if (localswitch_needed
 	    || (intitle_command && using_begin_end)
 	    || closing_rtl_ltr_environment
-	    || ((runparams.isLastPar || close_lang_switch)
+	    || (((runparams.isLastPar && !runparams.inbranch) || close_lang_switch)
 	        && (par_lang != outer_lang || (using_begin_end
 						&& style.isEnvironment()
 						&& par_lang != nextpar_lang)))) {
@@ -1610,14 +1611,23 @@ void latexParagraphs(Buffer const & buf,
 		state->open_encoding_ = none;
 	}
 	// Likewise for polyglossia or when using begin/end commands
+	// or after an active branch inset with a language switch
+	Language const * const outer_language = (runparams.local_font != 0)
+			? runparams.local_font->language() : bparams.language;
+	string const & prev_lang = runparams.use_polyglossia
+			? getPolyglossiaEnvName(outer_language)
+			: outer_language->babel();
 	string const & cur_lang = openLanguageName(state);
-	if (maintext && !is_child && !cur_lang.empty()) {
+	if (((runparams.inbranch && langOpenedAtThisLevel(state) && prev_lang != cur_lang)
+	     || (maintext && !is_child)) && !cur_lang.empty()) {
 		os << from_utf8(subst(lang_end_command,
 					"$$lang",
 					cur_lang))
 		   << '\n';
 		if (using_begin_end)
 			popLanguageName();
+	} else if (runparams.inbranch && !using_begin_end && prev_lang != cur_lang) {
+		os << subst(lang_begin_command, "$$lang", prev_lang) << '\n';
 	}
 
 	// reset inherited encoding