From 78f24b4133a107fc2e6d780e46468eb1ba173184 Mon Sep 17 00:00:00 2001
From: Robert Alessi <alessi@robertalessi.net>
Date: Sun, 26 Aug 2018 19:11:05 +0200
Subject: al_closestream(), nested \txarb{}: removed superfluous pair of braces

---
 arabluatex.lua | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arabluatex.lua b/arabluatex.lua
index 5b2d2e3..8fc31bc 100644
--- a/arabluatex.lua
+++ b/arabluatex.lua
@@ -817,7 +817,10 @@ function al_closestream()
    t = string.gsub(t, "(\\end%s?)(%b{})", "%1%2\n")
    t = string.gsub(t, "([^\n]%s-)(\\end)%s?(%b{})", "%1\n%2%3")
    t = string.gsub(t, "\n\n\n", "\n\n")
-   t = string.gsub(t, "(\\txarb%s?%{)(\\txarb%s?)(%b{})(%})", "%1%3%4")
+   t = string.gsub(t, "(\\txarb%s?%{)(\\txarb%s?)(%b{})(%})", function(tagio, tagii, body, tagic)
+		      body = string.sub(body, 2, -2)
+		      return string.format("%s%s%s", tagio, body, tagic)
+   end)
    t = string.gsub(t, "(\\prname%s?%*%{)(\\txtrans%s?)(%b{})(%})", function(tagio, tagii, body, tagic)
    		      body = string.sub(body, 2, -2)
    		      return string.format("%s%s%s", tagio, body, tagic)
-- 
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