[latex3-commits] [git/LaTeX3-latex3-babel] master: First attempt to fix mirroring in math (#134) (fa037ce)

[Joseph Wright]

Repository : https://github.com/latex3/babel
On branch  : master
Link       : https://github.com/latex3/babel/commit/fa037ce33858a9e4cf6f2f44328d990ba4834fcc

>---------------------------------------------------------------

commit fa037ce33858a9e4cf6f2f44328d990ba4834fcc
Author: Javier Bezos <jbezos at users.noreply.github.com>
Date:   Wed Mar 20 18:39:13 2019 +0100

    First attempt to fix mirroring in math (#134)


>---------------------------------------------------------------

fa037ce33858a9e4cf6f2f44328d990ba4834fcc
 babel.dtx |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/babel.dtx b/babel.dtx
index 4623bd3..1497432 100644
--- a/babel.dtx
+++ b/babel.dtx
@@ -18144,6 +18144,7 @@ function Babel.bidi(head, ispar)
         end
       end
       dir = dir or 'l'
+      if inmath then dir = ('TRT' == tex.mathdir) and 'r' or 'l' end
 %    \end{macrocode}
 %
 %      Next is based on the assumption babel sets the language AND
@@ -18406,6 +18407,7 @@ function Babel.bidi(head, ispar, hdir)
 
   local nodes = {}
   local outer_first = nil
+  local inmath = false
 
   local glue_d = nil
   local glue_i = nil
@@ -18465,6 +18467,7 @@ function Babel.bidi(head, ispar, hdir)
         end
       end
       d = d or 'l'
+      if inmath then d = ('TRT' == tex.mathdir) and 'r' or 'l' end
       d_font = d_font or d
 
       d_font = (d_font == 'l' and 0) or
@@ -18513,6 +18516,9 @@ function Babel.bidi(head, ispar, hdir)
       glue_i = item
       d = nil
       
+    elseif item.id == node.id'math' then
+      inmath = (item.subtype == 0)
+
     else
       d = nil
     end