21d3294c |
1 | /* |
2 | * min.c -- a minimal Lua interpreter |
3 | * loads stdin only with minimal error handling. |
4 | * no interaction, and no standard library, only a "print" function. |
5 | */ |
6 | |
7 | #include <stdio.h> |
8 | |
9 | #include "lua.h" |
10 | #include "lauxlib.h" |
11 | |
12 | static int print(lua_State *L) |
13 | { |
14 | int n=lua_gettop(L); |
15 | int i; |
16 | for (i=1; i<=n; i++) |
17 | { |
18 | if (i>1) printf("\t"); |
19 | if (lua_isstring(L,i)) |
20 | printf("%s",lua_tostring(L,i)); |
21 | else if (lua_isnil(L,i)) |
22 | printf("%s","nil"); |
23 | else if (lua_isboolean(L,i)) |
24 | printf("%s",lua_toboolean(L,i) ? "true" : "false"); |
25 | else |
26 | printf("%s:%p",luaL_typename(L,i),lua_topointer(L,i)); |
27 | } |
28 | printf("\n"); |
29 | return 0; |
30 | } |
31 | |
32 | int main(void) |
33 | { |
34 | lua_State *L=lua_open(); |
35 | lua_register(L,"print",print); |
36 | if (luaL_dofile(L,NULL)!=0) fprintf(stderr,"%s\n",lua_tostring(L,-1)); |
37 | lua_close(L); |
38 | return 0; |
39 | } |