[Minor] Lua_text: Add __lt metamethod

diff --git a/src/lua/lua_text.c b/src/lua/lua_text.c
index 663e4d49be7702c60ed7bc147b18134a1e723d5d..e3164aee1a329c6d8c8221d1baf128e7810c5831 100644 (file)
--- a/src/lua/lua_text.c
+++ b/src/lua/lua_text.c
@@ -201,6 +201,7 @@ LUA_FUNCTION_DEF (text, base64);
 LUA_FUNCTION_DEF (text, hex);
 LUA_FUNCTION_DEF (text, gc);
 LUA_FUNCTION_DEF (text, eq);
+LUA_FUNCTION_DEF (text, lt);
 
 static const struct luaL_reg textlib_f[] = {
                LUA_INTERFACE_DEF (text, fromstring),
@@ -236,6 +237,7 @@ static const struct luaL_reg textlib_m[] = {
                {"__tostring", lua_text_str},
                {"__gc", lua_text_gc},
                {"__eq", lua_text_eq},
+               {"__lt", lua_text_lt},
                {NULL, NULL}
 };
 
@@ -1120,6 +1122,25 @@ lua_text_eq (lua_State *L)
        return 1;
 }
 
+static gint
+lua_text_lt (lua_State *L)
+{
+       LUA_TRACE_POINT;
+       struct rspamd_lua_text *t1 = lua_check_text (L, 1),
+                       *t2 = lua_check_text (L, 2);
+
+       if (t1 && t2) {
+               if (t1->len == t2->len) {
+                       lua_pushboolean (L, memcmp (t1->start, t2->start, t1->len) < 0);
+               }
+               else {
+                       lua_pushboolean (L, t1->len < t2->len);
+               }
+       }
+
+       return 1;
+}
+
 static gint
 lua_text_wipe (lua_State *L)
 {