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Do not try to pop from an empty stack
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59cabde9e3
commit
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@ -631,7 +631,7 @@ int Font::latexWriteEndChanges(otexstream & os, BufferParams const & bparams,
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bool const using_begin_end =
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runparams.use_polyglossia ||
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!lyxrc.language_command_end.empty();
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if (using_begin_end)
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if (using_begin_end && !languageStackEmpty())
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popLanguageName();
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}
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@ -2805,7 +2805,8 @@ void Paragraph::latex(BufferParams const & bparams,
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string end_tag = subst(lang_end_command, "$$lang", running_lang);
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os << from_ascii(end_tag);
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column += end_tag.length();
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popLanguageName();
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if (!languageStackEmpty())
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popLanguageName();
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}
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// Switch file encoding if necessary (and allowed)
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@ -607,6 +607,14 @@ void popLanguageName()
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}
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bool languageStackEmpty()
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{
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OutputState * state = getOutputState();
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return state->lang_switch_depth_.empty();
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}
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string const & openLanguageName()
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{
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OutputState * state = getOutputState();
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@ -1768,7 +1776,7 @@ void latexParagraphs(Buffer const & buf,
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<< '\n';
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// If we have language_auto_begin, the stack will
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// already be empty, nothing to pop()
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if (using_begin_end && !lyxrc.language_auto_begin)
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if (using_begin_end && langOpenedAtThisLevel(state))
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popLanguageName();
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}
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@ -37,6 +37,9 @@ void pushLanguageName(std::string const & lang, bool localswitch = false);
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*/
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void popLanguageName();
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// Check if we have an empty language stack
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bool languageStackEmpty();
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/** Return a reference to the last active language opened with
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polyglossia or when using begin/end commands. If none or when
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using babel with only a begin command, return a reference to
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