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-rw-r--r--tex/context/base/mkiv/math-ini.mkiv15
1 files changed, 15 insertions, 0 deletions
diff --git a/tex/context/base/mkiv/math-ini.mkiv b/tex/context/base/mkiv/math-ini.mkiv
index ce0b37f4a..02fbf7db5 100644
--- a/tex/context/base/mkiv/math-ini.mkiv
+++ b/tex/context/base/mkiv/math-ini.mkiv
@@ -123,6 +123,7 @@
\definesystemattribute[mathbidi] [public]
\definesystemattribute[mathdomain] [public]
\definesystemattribute[mathcollapsing] [public]
+\definesystemattribute[mathunstack] [public]
\definesystemattribute[displaymath] [public]
@@ -2867,6 +2868,20 @@
% \let\b\math_b
% \to \everymathematics
+%D Experiment
+
+\unexpanded\def\math_scripts_stack
+ {\mathunstackattribute\attributeunsetvalue}
+
+\unexpanded\def\math_scripts_unstack
+ {\clf_enablescriptunstacking
+ \mathunstackattribute\plusone}
+
+\appendtoks
+ \let\stackscripts \math_scripts_stack
+ \let\unstackscripts\math_scripts_unstack
+\to \everymathematics
+
\protect \endinput
% % not used (yet)