Function runargs

xrepo/packages/l/lua/port/lua/src/lua.c:329–352

** Processes options 'e' and 'l', which involve running Lua code, and ** 'W', which also affects the state. ** Returns 0 if some code raises an error. */

** Returns 0 if some code raises an error.
*/
static int runargs (lua_State *L, char **argv, int n) {
  int i;
  for (i = 1; i < n; i++) {
    int option = argv[i][1];
    lua_assert(argv[i][0] == '-');  /* already checked */
    switch (option) {
      case 'e':  case 'l': {
        int status;
        char *extra = argv[i] + 2;  /* both options need an argument */
        if (*extra == '\0') extra = argv[++i];
        lua_assert(extra != NULL);
        status = (option == 'e')
                 ? dostring(L, extra, "=(command line)")
                 : dolibrary(L, extra);
        if (status != LUA_OK) return 0;
        break;
      }
      case 'W':
        lua_warning(L, "@on", 0);  /* warnings on */
        break;
    }
  }
  return 1;
}


static int handle_luainit (lua_State *L) {