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-rw-r--r--tex/context/base/mkiv/font-sty.mkvi21
1 files changed, 21 insertions, 0 deletions
diff --git a/tex/context/base/mkiv/font-sty.mkvi b/tex/context/base/mkiv/font-sty.mkvi
index 6b2c072e5..cf49cd5eb 100644
--- a/tex/context/base/mkiv/font-sty.mkvi
+++ b/tex/context/base/mkiv/font-sty.mkvi
@@ -409,4 +409,25 @@
\let\dostopattributes\endgroup
+%D New but it needs to be supported explicitly (as in natural tables).
+
+\newconditional\c_font_styles_math
+
+\unexpanded\def\font_styles_math_reset
+ {\setfalse\c_font_styles_math}
+
+\unexpanded\def\font_styles_math_start
+ {\ifconditional\c_font_styles_math
+ \startimath
+ \fi
+ \relax}
+
+\unexpanded\def\font_styles_math_stop
+ {\relax
+ \ifconditional\c_font_styles_math
+ \stopimath
+ \fi}
+
+\definealternativestyle[\v!math][\settrue\c_font_styles_math]
+
\protect \endinput