/* * Copyright (C) 2013 Patrick "P. J." McDermott * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * . */ #include #include #include #include #include "logging.h" #include "script.h" /* LUA_OK is defined in Lua 5.2 but not 5.1. */ #ifndef LUA_OK #define LUA_OK 0 #endif struct script * script_load(const char *path) { struct script *s; s = malloc(sizeof(*s)); if (s == NULL) { err(1, "Failed to allocate script"); } s->path = path; /* Load the script. */ s->lua_state = luaL_newstate(); luaL_openlibs(s->lua_state); if (luaL_loadfile(s->lua_state, path) != LUA_OK) { err(1, "Error loading script: %s\n", lua_tostring(s->lua_state, -1)); } /* Run the script once to let it define functions. */ if (lua_pcall(s->lua_state, 0, 0, 0) != LUA_OK) { err(1, "Error running script: %s\n", lua_tostring(s->lua_state, -1)); } return s; } void script_call(struct script *s, const char *func) { lua_getglobal(s->lua_state, func); if (lua_pcall(s->lua_state, 0, 0, 0) != LUA_OK) { err(1, "Error calling function: %s\n", lua_tostring(s->lua_state, -1)); } }