ulem commands can be nested.

src/Font.cpp

@@ -418,22 +418,22 @@ int Font::latexWriteStartChanges(odocstream & os, BufferParams const & bparams,
 	if (f.underbar() == FONT_ON) {
 		os << "\\uline{";
 		count += 10;
-		runparams.inulemcmd = true;
+		++runparams.inulemcmd;
 	}
 	if (f.strikeout() == FONT_ON) {
 		os << "\\sout{";
 		count += 9;
-		runparams.inulemcmd = true;
+		++runparams.inulemcmd;
 	}
 	if (f.uuline() == FONT_ON) {
 		os << "\\uuline{";
 		count += 11;
-		runparams.inulemcmd = true;
+		++runparams.inulemcmd;
 	}
 	if (f.uwave() == FONT_ON) {
 		os << "\\uwave{";
 		count += 10;
-		runparams.inulemcmd = true;
+		++runparams.inulemcmd;
 	}
 	return count;
 }
@@ -497,22 +497,22 @@ int Font::latexWriteEndChanges(otexstream & os, BufferParams const & bparams,
 	if (f.underbar() == FONT_ON) {
 		os << '}';
 		++count;
-		runparams.inulemcmd = false;
+		--runparams.inulemcmd;
 	}
 	if (f.strikeout() == FONT_ON) {
 		os << '}';
 		++count;
-		runparams.inulemcmd = false;
+		--runparams.inulemcmd;
 	}
 	if (f.uuline() == FONT_ON) {
 		os << '}';
 		++count;
-		runparams.inulemcmd = false;
+		--runparams.inulemcmd;
 	}
 	if (f.uwave() == FONT_ON) {
 		os << '}';
 		++count;
-		runparams.inulemcmd = false;
+		--runparams.inulemcmd;
 	}
 
 	// If the current language is Hebrew, Arabic, or Farsi

src/OutputParams.cpp

@@ -20,7 +20,7 @@ namespace lyx {
 
 OutputParams::OutputParams(Encoding const * enc)
 	: flavor(LATEX), math_flavor(NotApplicable), nice(false), is_child(false),
-	  moving_arg(false), inulemcmd(false), local_font(0), master_language(0),
+	  moving_arg(false), inulemcmd(0), local_font(0), master_language(0),
 	  encoding(enc), free_spacing(false), use_babel(false), use_polyglossia(false),
 	  use_indices(false), use_japanese(false), linelen(0), depth(0),
 	  exportdata(new ExportData),

src/OutputParams.h

@@ -99,13 +99,13 @@ public:
 	*/
 	bool intitle;
 
-	/** inulemcmd == true means that the environment in which the
+	/** inulemcmd > 0 means that the environment in which the
 	    inset is typeset is part of a ulem command (\uline, \uuline,
 	    \uwave, or \sout). Insets that output latex commands relying
 	    on local assignments (such as \cite) should enclose such
 	    commands in \mbox{} in order to avoid breakage.
 	*/
-	mutable bool inulemcmd;
+	mutable int inulemcmd;
 
 	/** the font at the point where the inset is
 	 */

src/insets/InsetCitation.cpp

@@ -422,7 +422,7 @@ void InsetCitation::latex(otexstream & os, OutputParams const & runparams) const
 	// FIXME UNICODE
 	docstring const cite_str = from_utf8(citationStyleToString(cs));
 
-	if (runparams.inulemcmd)
+	if (runparams.inulemcmd > 0)
 		os << "\\mbox{";
 
 	os << "\\" << cite_str;

src/insets/InsetRef.cpp

@@ -143,7 +143,7 @@ void InsetRef::latex(otexstream & os, OutputParams const & rp) const
 	string const cmd = getCmdName();
 	docstring const data = getEscapedLabel(rp);
 
-	if (rp.inulemcmd)
+	if (rp.inulemcmd > 0)
 		os << "\\mbox{";
 
 	if (cmd == "eqref" && buffer().params().use_refstyle) {
@@ -168,7 +168,7 @@ void InsetRef::latex(otexstream & os, OutputParams const & rp) const
 		os << p.getCommand(rp);
 	}
 
-	if (rp.inulemcmd)
+	if (rp.inulemcmd > 0)
 		os << "}";
 }