[Minor] Split global functions into libraries

1 files changed, 19 insertions, 0 deletions

diff --git a/lualib/lua_util.lua b/lualib/lua_util.lua
new file mode 100644
index 000000000..755773ea4
--- /dev/null
+++ b/lualib/lua_util.lua
@@ -0,0 +1,19 @@
+local exports = {}
+
+local split_grammar = {}
+exports.rspamd_str_split = function(s, sep)
+  local lpeg = require "lpeg"
+  local gr = split_grammar[sep]
+
+  if not gr then
+    local _sep = lpeg.P(sep)
+    local elem = lpeg.C((1 - _sep)^0)
+    local p = lpeg.Ct(elem * (_sep * elem)^0)
+    gr = p
+    split_grammar[sep] = gr
+  end
+
+  return gr:match(s)
+end
+
+return exports