allow arguments in PassThru insets

src/insets/InsetArgument.cpp

@@ -19,6 +19,7 @@
 #include "InsetList.h"
 #include "Layout.h"
 #include "Lexer.h"
+#include "OutputParams.h"
 #include "ParIterator.h"
 
 #include "support/convert.h"
@@ -202,12 +203,15 @@ string InsetArgument::contextMenuName() const
 }
 
 void InsetArgument::latexArgument(otexstream & os,
-		OutputParams const & runparams, docstring const & ldelim,
+		OutputParams const & runparams_in, docstring const & ldelim,
 		docstring const & rdelim) const
 {
 	TexRow texrow;
 	odocstringstream ss;
 	otexstream ots(ss, texrow);
+	OutputParams runparams = runparams_in;
+	if (getLayout().isPassThru())
+		runparams.pass_thru = true;
 	InsetText::latex(ots, runparams);
 	docstring str = ss.str();
 	if (ldelim != "{" && support::contains(str, rdelim))

src/insets/InsetText.cpp

@@ -714,6 +714,18 @@ ParagraphList & InsetText::paragraphs()
 }
 
 
+bool InsetText::insetAllowed(InsetCode code) const
+{
+	switch (code) {
+	// Arguments are also allowed in PassThru insets
+	case ARG_CODE:
+		return true;
+	default:
+		return !getLayout().isPassThru();
+	}
+}
+
+
 void InsetText::updateBuffer(ParIterator const & it, UpdateType utype)
 {
 	ParIterator it2 = it;

src/insets/InsetText.h

@@ -149,7 +149,7 @@ public:
 	///
 	ParagraphList const & paragraphs() const;
 	///
-	bool insetAllowed(InsetCode) const { return !getLayout().isPassThru(); }
+	bool insetAllowed(InsetCode) const;
 	///
 	bool allowSpellCheck() const { return getLayout().spellcheck() && !getLayout().isPassThru(); }
 	///