118 lines
3.1 KiB
C
118 lines
3.1 KiB
C
/*
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* lua.h - Lua configuration management header
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*
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* Copyright © 2008 Julien Danjou <julien@danjou.info>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef AWESOME_LUA_H
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#define AWESOME_LUA_H
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#include <lua5.1/lua.h>
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#include <lua5.1/lauxlib.h>
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#include "common/util.h"
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/** Type for Lua function */
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typedef int luaA_function;
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#define luaA_dostring(L, cmd) \
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do { \
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if(cmd) \
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if(luaL_dostring(L, cmd)) \
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warn("error executing Lua code: %s\n", \
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lua_tostring(L, -1)); \
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} while(0)
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#define luaA_dofunction(L, f, n) \
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do { \
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if(f) \
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{ \
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lua_rawgeti(L, LUA_REGISTRYINDEX, f); \
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if(n) \
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lua_insert(L, - (n + 1)); \
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if(lua_pcall(L, n, 0, 0)) \
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warn("error running function: %s\n", \
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lua_tostring(L, -1)); \
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} \
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} while(0)
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#define luaA_checktable(L, n) \
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do { \
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if(!lua_istable(L, n)) \
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luaL_typerror(L, n, "table"); \
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} while(0)
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#define luaA_checkfunction(L, n) \
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do { \
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if(!lua_isfunction(L, n)) \
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luaL_typerror(L, n, "function"); \
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} while(0)
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#define luaA_checkscreen(screen) \
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do { \
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if(screen < 0 || screen >= globalconf.screens_info->nscreen) \
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luaL_error(L, "invalid screen number: %d\n", screen); \
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} while(0)
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static inline lua_Number
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luaA_getopt_number(lua_State *L, int idx, const char *name, lua_Number def)
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{
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/* assume that table is first on stack */
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lua_getfield(L, idx, name);
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/* return luaL_optnumber result */
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return luaL_optnumber(L, -1, def);
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}
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static inline const char *
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luaA_getopt_string(lua_State *L, int idx, const char *name, const char *def)
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{
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/* assume that table is first on stack */
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lua_getfield(L, idx, name);
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/* return luaL_optnumber result */
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return luaL_optstring(L, -1, def);
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}
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static inline int
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luaA_settype(lua_State *L, const char *type)
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{
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luaL_getmetatable(L, type);
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lua_setmetatable(L, -2);
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return 1;
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}
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static inline char *
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luaA_name_init(lua_State *L)
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{
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lua_getfield(L, 1, "name");
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return a_strdup(luaL_checkstring(L, -1));
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}
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static inline bool
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luaA_checkboolean(lua_State *L, int n)
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{
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if(!lua_isboolean(L, n))
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luaL_typerror(L, n, "boolean");
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return lua_toboolean(L, n);
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}
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bool luaA_parserc(const char *);
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void luaA_docmd(char *);
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#endif
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// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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