From 1af0832f750ac7e0c48c6efe1367a9d96447bfdc Mon Sep 17 00:00:00 2001
From: Juergen Spitzmueller <spitz@lyx.org>
Date: Mon, 23 Apr 2018 11:04:18 +0200
Subject: [PATCH] Do not require cprotect if we only have a cprotectible inset
 in the maintext.

---
 src/Paragraph.cpp        | 2 +-
 src/insets/Inset.h       | 2 +-
 src/insets/InsetText.cpp | 4 ++--
 src/insets/InsetText.h   | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/Paragraph.cpp b/src/Paragraph.cpp
index 4bd483e44d..dc41fb9e96 100644
--- a/src/Paragraph.cpp
+++ b/src/Paragraph.cpp
@@ -3475,7 +3475,7 @@ bool Paragraph::needsCProtection() const
 	// now check whether we have insets that need cprotection
 	pos_type size = d->text_.size();
 	for (pos_type i = 0; i < size; ++i)
-		if (isInset(i) && getInset(i)->needsCProtection())
+		if (isInset(i) && getInset(i)->needsCProtection(maintext))
 			return true;
 
 	return false;
diff --git a/src/insets/Inset.h b/src/insets/Inset.h
index f6df439b3b..b6b8db64a5 100644
--- a/src/insets/Inset.h
+++ b/src/insets/Inset.h
@@ -595,7 +595,7 @@ public:
 	virtual void rejectChanges() {}
 
 	///
-	virtual bool needsCProtection() const { return false; }
+	virtual bool needsCProtection(bool const) const { return false; }
 
 	///
 	virtual ColorCode backgroundColor(PainterInfo const &) const;
diff --git a/src/insets/InsetText.cpp b/src/insets/InsetText.cpp
index b38a1dc356..61c4a19b34 100644
--- a/src/insets/InsetText.cpp
+++ b/src/insets/InsetText.cpp
@@ -1086,7 +1086,7 @@ InsetText::XHTMLOptions operator|(InsetText::XHTMLOptions a1, InsetText::XHTMLOp
 }
 
 
-bool InsetText::needsCProtection() const
+bool InsetText::needsCProtection(bool const maintext) const
 {
 	// Nested cprotect content needs \cprotect
 	// on each level
@@ -1098,7 +1098,7 @@ bool InsetText::needsCProtection() const
 
 	// Environments and "no latex" types (e.g., knitr chunks)
 	// need cprotection regardless the content
-	if (getLayout().latextype() != InsetLayout::COMMAND)
+	if (!maintext && getLayout().latextype() != InsetLayout::COMMAND)
 		return true;
 
 	// Commands need cprotection if they contain specific chars
diff --git a/src/insets/InsetText.h b/src/insets/InsetText.h
index 54f9a57119..e4e4bfc798 100644
--- a/src/insets/InsetText.h
+++ b/src/insets/InsetText.h
@@ -224,7 +224,7 @@ public:
 	bool confirmDeletion() const { return !text().empty(); }
 
 	///
-	bool needsCProtection() const;
+	bool needsCProtection(bool const maintext = false) const;
 	///
 	bool hasCProtectContent() const;