From ff0f488c97fe8b554b909a0057cebc4c860eac8f Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Wed, 20 Oct 2021 13:40:34 +0800
Subject: +luasocket src

---
 ThirdParty/luasocket/gem/ex3.lua | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 ThirdParty/luasocket/gem/ex3.lua

(limited to 'ThirdParty/luasocket/gem/ex3.lua')

diff --git a/ThirdParty/luasocket/gem/ex3.lua b/ThirdParty/luasocket/gem/ex3.lua
new file mode 100644
index 0000000..a43fefa
--- /dev/null
+++ b/ThirdParty/luasocket/gem/ex3.lua
@@ -0,0 +1,15 @@
+local function chainpair(f1, f2)
+  return function(chunk)
+    local ret = f2(f1(chunk))
+    if chunk then return ret
+    else return (ret or "") .. (f2() or "") end
+  end
+end
+
+function filter.chain(...)
+  local f = select(1, ...) 
+  for i = 2, select('#', ...) do
+    f = chainpair(f, select(i, ...))
+  end
+  return f
+end
-- 
cgit v1.1-26-g67d0