[LyX/master] Fix bug #8784 (mathml export for scripts)

[Georg Baum]

commit 877e73e0a21fd6fd9f147146b88acbf9b01e1890
Author: Georg Baum <b...@lyx.org>
Date:   Sat Feb 22 19:01:20 2014 +0100

    Fix bug #8784 (mathml export for scripts)
    
    For displaystyle scripts we need to use munder, mover or munderover.

diff --git a/src/mathed/InsetMathScript.cpp b/src/mathed/InsetMathScript.cpp
index 7e501bc..37f1965 100644
--- a/src/mathed/InsetMathScript.cpp
+++ b/src/mathed/InsetMathScript.cpp
@@ -595,21 +595,18 @@ void InsetMathScript::mathematica(MathematicaStream & os) 
const
 }
 
 
-// FIXME XHTML
-// It may be worth trying to output munder, mover, and munderover
-// in certain cases, e.g., for display formulas. But then we would
-// need to know if we're in a display formula.
 void InsetMathScript::mathmlize(MathStream & os) const
 {
        bool d = hasDown() && !down().empty();
        bool u = hasUp() && !up().empty();
+       bool l = hasLimits();
 
        if (u && d)
-               os << MTag("msubsup");
+               os << MTag(l ? "munderover" : "msubsup");
        else if (u)
-               os << MTag("msup");
+               os << MTag(l ? "mover" : "msup");
        else if (d)
-               os << MTag("msub");
+               os << MTag(l ? "munder" : "msub");
 
        if (!nuc().empty())
                os << MTag("mrow") << nuc() << ETag("mrow");
@@ -619,11 +616,11 @@ void InsetMathScript::mathmlize(MathStream & os) const
        if (u && d)
                os << MTag("mrow") << down() << ETag("mrow") 
                   << MTag("mrow") << up() << ETag("mrow") 
-                  << ETag("msubsup");
+                  << ETag(l ? "munderover" : "msubsup");
        else if (u)
-               os << MTag("mrow") << up() << ETag("mrow") << ETag("msup");
+               os << MTag("mrow") << up() << ETag("mrow") << ETag(l ? "mover" 
: "msup");
        else if (d)
-               os << MTag("mrow") << down() << ETag("mrow") << ETag("msub");
+               os << MTag("mrow") << down() << ETag("mrow") << ETag(l ? 
"munder" : "msub");
 }