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The attached mlist.diff patch is an attempt to fix this issue, it works for me with both TFM and OpenType math fonts and should be low risk as it affects only \mathdir TRT. |
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mlist.diff (999 bytes)
diff --git a/source/texk/web2c/luatexdir/tex/mlist.w b/source/texk/web2c/luatexdir/tex/mlist.w
index be0cf55..7684dd0 100644
--- a/source/texk/web2c/luatexdir/tex/mlist.w
+++ b/source/texk/web2c/luatexdir/tex/mlist.w
@@ -2128,20 +2128,12 @@ static void do_make_math_accent(pointer q, internal_font_number f, int c,
if (sa == INT_MIN) {
sa = half(width(y)); /* just take the center */
}
- if (math_direction == dir_TRT) {
- shift_amount(y) = s + sa - width(y);
- } else {
- shift_amount(y) = s - sa;
- }
+ shift_amount(y) = s - sa;
} else {
if (width(y)== 0) {
shift_amount(y) = s + w;
} else {
- if (math_direction == dir_TRT) {
- shift_amount(y) = s + width(y);
- } else {
- shift_amount(y) = s + half(w - width(y));
- }
+ shift_amount(y) = s + half(w - width(y));
}
}
width(y) = 0;
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I uploaded a new patch that make sure the change is only applied in TRT mathdr. |
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