issue <??> for any [%^%_] left unprocessed instead of issuing a 'missing $ inserted' error

2 files changed, 4 insertions, 2 deletions

diff --git a/arabluatex_trans.lua b/arabluatex_trans.lua
index defb3b4..412018d 100644
--- a/arabluatex_trans.lua
+++ b/arabluatex_trans.lua
@@ -31,7 +31,8 @@ punctuationtr = {
 
 nulltr = {
    {a="%|", b=""},
-   {a="o[%S]-o", b=""}
+   {a="o[%S]-o", b=""},
+   {a="[%^%_](.)", b="<??>%1"}
 }
 
 -- cap
diff --git a/arabluatex_voc.lua b/arabluatex_voc.lua
index f3f093b..4ebe744 100644
--- a/arabluatex_voc.lua
+++ b/arabluatex_voc.lua
@@ -838,5 +838,6 @@ punctuation = {
 null = {
    {a="%|", b=""},
    {a="([^0-9])(%-)", b="%1"},
-   {a="o[%S]-o", b=""}
+   {a="o[%S]-o", b=""},
+   {a="[%^%_](.)", b=">??<%1"}
 }