Really fix bug #11616

[features.git] / src / output_latex.cpp

diff --git a/src/output_latex.cpp b/src/output_latex.cpp
index 7a8bf24c665c4370edcf9e0c8ea05aa74d37389e..891e74cf17e56cbedb179b940a73257689d8338d 100644 (file)
--- a/src/output_latex.cpp
+++ b/src/output_latex.cpp
@@ -1466,7 +1466,8 @@ void latexParagraphs(Buffer const & buf,
                                && runparams.use_CJK))
           ) {
                docstring const cjkenc = bparams.encoding().iconvName() == "UTF-8"
-                                                                ? from_ascii("UTF8") : from_ascii(bparams.encoding().latexName());
+                                                                ? from_ascii("UTF8")
+                                                                : from_ascii(bparams.encoding().latexName());
                os << "\\begin{CJK}{" << cjkenc
                   << "}{" << from_ascii(bparams.fonts_cjk) << "}%\n";
                state->open_encoding_ = CJK;
@@ -1604,8 +1605,10 @@ void latexParagraphs(Buffer const & buf,
 
        // if "auto end" is switched off, explicitly close the language at the end
        // but only if the last par is in a babel or polyglossia language
+       Language const * const lastpar_language =
+                       paragraphs.at(lastpit).getParLanguage(bparams);
        if (maintext && !lyxrc.language_auto_end && !mainlang.empty() &&
-               paragraphs.at(lastpit).getParLanguage(bparams)->encoding()->package() != Encoding::CJK) {
+               lastpar_language->encoding()->package() != Encoding::CJK) {
                os << from_utf8(subst(lang_end_command,
                                        "$$lang",
                                        mainlang))
@@ -1621,12 +1624,14 @@ void latexParagraphs(Buffer const & buf,
                state->open_encoding_ = none;
        }
        // Likewise for polyglossia or when using begin/end commands
-       // or after an active branch inset with a language switch
+       // or at the very end of an active branch inset with a language switch
        Language const * const outer_language = (runparams.local_font != nullptr)
                        ? runparams.local_font->language() : bparams.language;
        string const & prev_lang = runparams.use_polyglossia
                        ? getPolyglossiaEnvName(outer_language)
                        : outer_language->babel();
+       string const lastpar_lang = runparams.use_polyglossia ?
+               getPolyglossiaEnvName(lastpar_language): lastpar_language->babel();
        string const & cur_lang = openLanguageName(state);
        if (((runparams.inbranch && langOpenedAtThisLevel(state) && prev_lang != cur_lang)
             || (maintext && !is_child)) && !cur_lang.empty()) {
@@ -1636,7 +1641,11 @@ void latexParagraphs(Buffer const & buf,
                   << '\n';
                if (using_begin_end)
                        popLanguageName();
-       } else if (runparams.inbranch && !using_begin_end && prev_lang != cur_lang) {
+       } else if (runparams.inbranch && !using_begin_end
+                  && prev_lang != lastpar_lang && !lastpar_lang.empty()) {
+               // with !using_begin_end, cur_lang is empty, so we need to
+               // compare against the paragraph language (and we are in the
+               // last paragraph at this point)
                os << subst(lang_begin_command, "$$lang", prev_lang) << '\n';
        }