commit 55f10d7f1a9ec6cd8d0e7c8fa453dbb84fcbf3a7
Author: Enrico Forestieri <[email protected]>
Date: Sun Sep 14 11:17:10 2025 +0200
Amend 148efdf6
Empty braces are also necessary when we have a subscript
that follows a prime (which is an implicit superscript).
Part of #13004.
---
src/mathed/InsetMathScript.cpp | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/mathed/InsetMathScript.cpp b/src/mathed/InsetMathScript.cpp
index 47d8459ecf..1ccdf4f3cc 100644
--- a/src/mathed/InsetMathScript.cpp
+++ b/src/mathed/InsetMathScript.cpp
@@ -13,6 +13,7 @@
#include "InsetMathScript.h"
#include "InsetMathBrace.h"
+#include "InsetMathChar.h"
#include "MathData.h"
#include "MathStream.h"
#include "MathSupport.h"
@@ -531,7 +532,9 @@ void InsetMathScript::writeMath(TeXMathStream & os) const
// Avoid double superscript errors by writing an
// empty group {} when a prime immediately follows
- if (os.latex() && hasUp())
+ if (os.latex() && (hasUp() ||
+ (hasDown() && !nuc().empty() && nuc().back()->asCharInset() &&
+ nuc().back()->asCharInset()->getChar() == '\'')))
os.useBraces(true);
if (lock_ && !os.latex())
--
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