1 files changed, 16 insertions, 2 deletions
diff --git a/openresty-ext/src/assembly/resources/openresty/nginx/luaext/lib/utils/str_util.lua b/openresty-ext/src/assembly/resources/openresty/nginx/luaext/lib/utils/str_util.lua
index 6fa8d39..00996c4 100644
--- a/openresty-ext/src/assembly/resources/openresty/nginx/luaext/lib/utils/str_util.lua
+++ b/openresty-ext/src/assembly/resources/openresty/nginx/luaext/lib/utils/str_util.lua
@@ -1,6 +1,6 @@
 --[[
 
-    Copyright (C) 2016 ZTE, Inc. and others. All rights reserved. (ZTE)
+    Copyright (C) 2017-2018 ZTE, Inc. and others. All rights reserved. (ZTE)
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
@@ -19,6 +19,10 @@
 local _M = {}
 _M._VERSION = '1.0.0'
 
+local pl_stringx = require "pl.stringx"
+local split      = pl_stringx.split
+local strip      = pl_stringx.strip
+
 function _M.mark_empty_as_nil(t)
 	if t == "" then
 		return nil
@@ -27,4 +31,14 @@ function _M.mark_empty_as_nil(t)
 	end
 end
 
-return _M
-\ No newline at end of file
+--- splits a string.
+-- just a placeholder to the penlight `pl.stringx.split` function
+-- @function split
+_M.split = split
+
+--- strips whitespace from a string.
+-- just a placeholder to the penlight `pl.stringx.strip` function
+-- @function strip
+_M.strip = strip
+
+return _M