X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fmathed%2FInsetMathFrac.cpp;h=11d24469db1c09b752105035e8a1951186a2fcbb;hb=48b09463dd23e64fab605553a91542198e8361e4;hp=7f5323b8d611548a3f38201fe7ca8f100ffabe36;hpb=ff4460603e3888948b46f0ab5bfa69a862d538ad;p=lyx.git

diff --git a/src/mathed/InsetMathFrac.cpp b/src/mathed/InsetMathFrac.cpp
index 7f5323b8d6..11d24469db 100644
--- a/src/mathed/InsetMathFrac.cpp
+++ b/src/mathed/InsetMathFrac.cpp
@@ -42,7 +42,9 @@ InsetMathFracBase::InsetMathFracBase(Buffer * buf, idx_type ncells)
 
 bool InsetMathFracBase::idxUpDown(Cursor & cur, bool up) const
 {
-	InsetMath::idx_type target = !up; // up ? 0 : 1, since upper cell has idx 0
+	// If we only have one cell, target = 0, otherwise
+	// target = up ? 0 : 1, since upper cell has idx 0
+	InsetMath::idx_type target = nargs() > 1 ? !up : 0;
 	if (cur.idx() == target)
 		return false;
 	cur.idx() = target;
@@ -384,18 +386,10 @@ void InsetMathFrac::octave(OctaveStream & os) const
 
 void InsetMathFrac::mathmlize(MathStream & os) const
 {
-	switch (kind_) {
-	case DFRAC:
-		os << MTag("mdfrac") << cell(0) << cell(1) << ETag("mdfrac");
-		break;
-	case TFRAC:
-		os << MTag("mtfrac") << cell(0) << cell(1) << ETag("mtfrac");
-		break;
-	case FRAC:
-	default:
-		os << MTag("mfrac") << cell(0) << cell(1) << ETag("mfrac");
-		break;
-	}
+	os << MTag("mfrac")
+	   << MTag("mrow") << cell(0) << ETag("mrow")
+		 << MTag("mrow") << cell(1) << ETag("mrow")
+		 << ETag("mfrac");
 }