From: Anton Yuzhaninov <citrin+git@citrin.ru>
Date: Wed, 19 Aug 2020 15:58:31 +0000 (+0100)
Subject: [Minor] Add Lua functions str_startswith and str_endswith
X-Git-Tag: 2.6~139^2
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=ef8f8ffba01b7599e170428ade2e208e2540906b;p=rspamd.git

[Minor] Add Lua functions str_startswith and str_endswith
---

diff --git a/lualib/lua_util.lua b/lualib/lua_util.lua
index 5b0950419..6b42dbc5d 100644
--- a/lualib/lua_util.lua
+++ b/lualib/lua_util.lua
@@ -96,6 +96,26 @@ exports.rspamd_str_trim = rspamd_str_trim
 --]]
 exports.str_trim = rspamd_str_trim
 
+--[[[
+-- @function lua_util.str_startswith(text, prefix)
+-- @param {string} text
+-- @param {string} prefix
+-- @return {boolean} true if text starts with the specified prefix, false otherwise
+--]]
+exports.str_startswith = function(s, prefix)
+  return s:sub(1, prefix:len()) == prefix
+end
+
+--[[[
+-- @function lua_util.str_endswith(text, suffix)
+-- @param {string} text
+-- @param {string} suffix
+-- @return {boolean} true if text ends with the specified suffix, false otherwise
+--]]
+exports.str_endswith = function(s, suffix)
+  return s:sub(-suffix:len()) == suffix
+end
+
 --[[[
 -- @function lua_util.round(number, decimalPlaces)
 -- Round number to fixed number of decimal points