1 /* Copyright (c) 2015-2017 the Civetweb developers
2  *
3  * Permission is hereby granted, free of charge, to any person obtaining a copy
4  * of this software and associated documentation files (the "Software"), to deal
5  * in the Software without restriction, including without limitation the rights
6  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7  * copies of the Software, and to permit persons to whom the Software is
8  * furnished to do so, subject to the following conditions:
9  *
10  * The above copyright notice and this permission notice shall be included in
11  * all copies or substantial portions of the Software.
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19  * THE SOFTWARE.
20  */
21 
22 /* This header is intended to support Lua 5.1, Lua 5.2 and Lua 5.3 in the same
23  * C source code.
24  */
25 
26 #ifndef CIVETWEB_LUA_H
27 #define CIVETWEB_LUA_H
28 
29 #define LUA_LIB
30 #include "lauxlib.h"
31 #include "lua.h"
32 #include "lualib.h"
33 
34 #ifndef LUA_VERSION_NUM
35 #error "Unknown Lua version"
36 
37 #elif LUA_VERSION_NUM == 501
38 /* Lua 5.1 detected */
39 #define LUA_OK 0
40 #define LUA_ERRGCMM 999 /* not supported */
41 #define mg_lua_load(a, b, c, d, e) lua_load(a, b, c, d)
42 #define lua_rawlen lua_objlen
43 #define lua_newstate(a, b)                                                     \
44 	luaL_newstate() /* Must use luaL_newstate() for 64 bit target */
45 #define lua_pushinteger lua_pushnumber
46 #define luaL_newlib(L, t)                                                      \
47 	{                                                                          \
48 		luaL_Reg const *r = t;                                                 \
49 		while (r->name) {                                                      \
50 			lua_register(L, r->name, r->func);                                 \
51 			r++;                                                               \
52 		}                                                                      \
53 	}
54 #define luaL_setfuncs(L, r, u) lua_register(L, r->name, r->func)
55 
56 #elif LUA_VERSION_NUM == 502
57 /* Lua 5.2 detected */
58 #define mg_lua_load lua_load
59 
60 #elif LUA_VERSION_NUM == 503
61 /* Lua 5.3 detected */
62 #define mg_lua_load lua_load
63 
64 #elif LUA_VERSION_NUM == 504
65 /* Lua 5.4 detected */
66 #define mg_lua_load lua_load
67 
68 #endif
69 
70 #ifdef LUA_VERSION_MAKEFILE
71 #if LUA_VERSION_MAKEFILE != LUA_VERSION_NUM
72 #error                                                                         \
73     "Mismatch between Lua version specified in Makefile and Lua version in lua.h"
74 #endif
75 #endif
76 
77 #endif /* #ifndef CIVETWEB_LUA_H */
78