From e0a81d5f7c2ef211dc3eb4ce6e39154962a4c3e7 Mon Sep 17 00:00:00 2001
From: "Davide P. Cervone" <dpvc@union.edu>
Date: Thu, 11 Sep 2014 13:53:49 -0400
Subject: [PATCH] Force displaystyle and scriptstyle to be included in toMathML
 output, since the defaults for these are complicated.  Resolves issue #912.

---
 unpacked/extensions/toMathML.js | 6 ++----
 unpacked/jax/element/mml/jax.js | 1 +
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/unpacked/extensions/toMathML.js b/unpacked/extensions/toMathML.js
index 4a0949f61..61fb02ab5 100644
--- a/unpacked/extensions/toMathML.js
+++ b/unpacked/extensions/toMathML.js
@@ -59,11 +59,9 @@ MathJax.Hub.Register.LoadHook("[MathJax]/jax/element/mml/jax.js",function () {
       if (!this.attrNames) {
         if (this.type === "mstyle") {defaults = MML.math.prototype.defaults}
         for (var id in defaults) {if (!skip[id] && defaults.hasOwnProperty(id)) {
-          var force = (id === "open" || id === "close" || id === "form");
-          if (this[id] != null && (force || this[id] !== defaults[id])) {
+          if (this[id] != null && this[id] !== defaults[id]) {
             var value = this[id]; delete this[id];
-            if (force || this.Get(id) !== value)
-              {attr.push(id+'="'+this.toMathMLattribute(value)+'"')}
+            if (this.Get(id) !== value) {attr.push(id+'="'+this.toMathMLattribute(value)+'"')}
             this[id] = value;
           }
         }}
diff --git a/unpacked/jax/element/mml/jax.js b/unpacked/jax/element/mml/jax.js
index b0a7add04..f8f56f1ef 100644
--- a/unpacked/jax/element/mml/jax.js
+++ b/unpacked/jax/element/mml/jax.js
@@ -221,6 +221,7 @@ MathJax.ElementJax.mml.Augment({
   },
   skipAttributes: {texClass: true, useHeight: true, texprimestyle: true},
   copyAttributeNames: [
+    "displaystyle", "scriptlevel", "open", "close", "form",  // force these to be copied
     "fontfamily", "fontsize", "fontweight", "fontstyle",
     "color", "background",
     "id", "class", "href", "style"