2022-11-14 22:56:00

1 files changed, 17 insertions, 0 deletions

diff --git a/tex/context/base/mkxl/math-fen.mkxl b/tex/context/base/mkxl/math-fen.mkxl
index b3c85070f..d8cbf4e76 100644
--- a/tex/context/base/mkxl/math-fen.mkxl
+++ b/tex/context/base/mkxl/math-fen.mkxl
@@ -54,6 +54,8 @@
    \c!height=\zeropoint,
    \c!depth=\zeropoint,
    \c!distance=\zerocount,
+   \c!topspace=\zeropoint,
+   \c!bottomspace=\zeropoint,
    \c!factor=\v!auto]
 
 \appendtoks
@@ -83,6 +85,17 @@
 %D $ a + \fenced[bar]           {\frac {b} {c}} + d $
 %D \stoptyping
 
+% \startbuffer
+%     $ \left( \frac{1}{x}^{2} \right)$
+%     $ \left( x \right)$
+%     $ \left( x^2 \right)$
+%     $ \left( \frac{1}{x} \right)$
+%     $ \left( \frac{1}{x}^2 \right)$
+% \stopbuffer
+%
+% \getbuffer\blank
+% {\setupmathfence[topspace=-2pt,bottomspace=-1pt]\getbuffer\blank}
+
 % todo : class -> number
 
 \newconditional\c_math_fenced_mirror \settrue \c_math_fenced_mirror
@@ -205,6 +218,10 @@
         \fi
      \s!source
         \numexpr\namedboxanchor{\mathfenceparameter#4}\relax
+     %
+     \s!top    \mathfenceparameter\c!topspace
+     \s!bottom \mathfenceparameter\c!bottomspace
+     %
      \math_fenced_trace
      \ifx\p_fence\v!none
        \Udelimiter\mathghostcode\fam\zerocount