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1 | /* |
2 | ** $Id: lauxlib.h,v 1.120.1.1 2013/04/12 18:48:47 roberto Exp $ | |
3 | ** Auxiliary functions for building Lua libraries | |
4 | ** See Copyright Notice in lua.h | |
5 | */ | |
6 | ||
7 | ||
8 | #ifndef lauxlib_h | |
9 | #define lauxlib_h | |
10 | ||
11 | ||
12 | #include <sys/lua/lua.h> | |
13 | ||
14 | ||
15 | ||
16 | /* extra error code for `luaL_load' */ | |
17 | #define LUA_ERRFILE (LUA_ERRERR+1) | |
18 | ||
19 | ||
20 | typedef struct luaL_Reg { | |
21 | const char *name; | |
22 | lua_CFunction func; | |
23 | } luaL_Reg; | |
24 | ||
25 | ||
26 | LUALIB_API void (luaL_checkversion_) (lua_State *L, lua_Number ver); | |
27 | #define luaL_checkversion(L) luaL_checkversion_(L, LUA_VERSION_NUM) | |
28 | ||
29 | LUALIB_API int (luaL_getmetafield) (lua_State *L, int obj, const char *e); | |
30 | LUALIB_API int (luaL_callmeta) (lua_State *L, int obj, const char *e); | |
31 | LUALIB_API const char *(luaL_tolstring) (lua_State *L, int idx, size_t *len); | |
32 | LUALIB_API int (luaL_argerror) (lua_State *L, int numarg, const char *extramsg); | |
33 | LUALIB_API const char *(luaL_checklstring) (lua_State *L, int numArg, | |
34 | size_t *l); | |
35 | LUALIB_API const char *(luaL_optlstring) (lua_State *L, int numArg, | |
36 | const char *def, size_t *l); | |
37 | LUALIB_API lua_Number (luaL_checknumber) (lua_State *L, int numArg); | |
38 | LUALIB_API lua_Number (luaL_optnumber) (lua_State *L, int nArg, lua_Number def); | |
39 | ||
40 | LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg); | |
41 | LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg, | |
42 | lua_Integer def); | |
43 | LUALIB_API lua_Unsigned (luaL_checkunsigned) (lua_State *L, int numArg); | |
44 | LUALIB_API lua_Unsigned (luaL_optunsigned) (lua_State *L, int numArg, | |
45 | lua_Unsigned def); | |
46 | ||
47 | LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg); | |
48 | LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t); | |
49 | LUALIB_API void (luaL_checkany) (lua_State *L, int narg); | |
50 | ||
51 | LUALIB_API int (luaL_newmetatable) (lua_State *L, const char *tname); | |
52 | LUALIB_API void (luaL_setmetatable) (lua_State *L, const char *tname); | |
53 | LUALIB_API void *(luaL_testudata) (lua_State *L, int ud, const char *tname); | |
54 | LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname); | |
55 | ||
56 | LUALIB_API void (luaL_where) (lua_State *L, int lvl); | |
57 | LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...); | |
58 | ||
59 | LUALIB_API int (luaL_checkoption) (lua_State *L, int narg, const char *def, | |
60 | const char *const lst[]); | |
61 | ||
62 | /* pre-defined references */ | |
63 | #define LUA_NOREF (-2) | |
64 | #define LUA_REFNIL (-1) | |
65 | ||
66 | LUALIB_API int (luaL_ref) (lua_State *L, int t); | |
67 | LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref); | |
68 | ||
69 | LUALIB_API int (luaL_loadbufferx) (lua_State *L, const char *buff, size_t sz, | |
70 | const char *name, const char *mode); | |
71 | LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s); | |
72 | ||
73 | LUALIB_API int (luaL_len) (lua_State *L, int idx); | |
74 | ||
75 | LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p, | |
76 | const char *r); | |
77 | ||
78 | LUALIB_API void (luaL_setfuncs) (lua_State *L, const luaL_Reg *l, int nup); | |
79 | ||
80 | LUALIB_API int (luaL_getsubtable) (lua_State *L, int idx, const char *fname); | |
81 | ||
82 | LUALIB_API void (luaL_traceback) (lua_State *L, lua_State *L1, | |
83 | const char *msg, int level); | |
84 | ||
85 | LUALIB_API void (luaL_requiref) (lua_State *L, const char *modname, | |
86 | lua_CFunction openf, int glb); | |
87 | ||
88 | /* | |
89 | ** =============================================================== | |
90 | ** some useful macros | |
91 | ** =============================================================== | |
92 | */ | |
93 | ||
94 | ||
95 | #define luaL_newlibtable(L,l) \ | |
96 | lua_createtable(L, 0, sizeof(l)/sizeof((l)[0]) - 1) | |
97 | ||
98 | #define luaL_newlib(L,l) (luaL_newlibtable(L,l), luaL_setfuncs(L,l,0)) | |
99 | ||
100 | #define luaL_argcheck(L, cond,numarg,extramsg) \ | |
101 | ((void)((cond) || luaL_argerror(L, (numarg), (extramsg)))) | |
102 | #define luaL_checkstring(L,n) (luaL_checklstring(L, (n), NULL)) | |
103 | #define luaL_optstring(L,n,d) (luaL_optlstring(L, (n), (d), NULL)) | |
104 | #define luaL_checkint(L,n) ((int)luaL_checkinteger(L, (n))) | |
105 | #define luaL_optint(L,n,d) ((int)luaL_optinteger(L, (n), (d))) | |
106 | #define luaL_checklong(L,n) ((long)luaL_checkinteger(L, (n))) | |
107 | #define luaL_optlong(L,n,d) ((long)luaL_optinteger(L, (n), (d))) | |
108 | ||
109 | #define luaL_typename(L,i) lua_typename(L, lua_type(L,(i))) | |
110 | ||
111 | #define luaL_dofile(L, fn) \ | |
112 | (luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0)) | |
113 | ||
114 | #define luaL_dostring(L, s) \ | |
115 | (luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0)) | |
116 | ||
117 | #define luaL_getmetatable(L,n) (lua_getfield(L, LUA_REGISTRYINDEX, (n))) | |
118 | ||
119 | #define luaL_opt(L,f,n,d) (lua_isnoneornil(L,(n)) ? (d) : f(L,(n))) | |
120 | ||
121 | #define luaL_loadbuffer(L,s,sz,n) luaL_loadbufferx(L,s,sz,n,NULL) | |
122 | ||
123 | ||
124 | /* | |
125 | ** {====================================================== | |
126 | ** Generic Buffer manipulation | |
127 | ** ======================================================= | |
128 | */ | |
129 | ||
130 | typedef struct luaL_Buffer { | |
131 | char *b; /* buffer address */ | |
132 | size_t size; /* buffer size */ | |
133 | size_t n; /* number of characters in buffer */ | |
134 | lua_State *L; | |
135 | char initb[LUAL_BUFFERSIZE]; /* initial buffer */ | |
136 | } luaL_Buffer; | |
137 | ||
138 | ||
139 | #define luaL_addchar(B,c) \ | |
140 | ((void)((B)->n < (B)->size || luaL_prepbuffsize((B), 1)), \ | |
141 | ((B)->b[(B)->n++] = (c))) | |
142 | ||
143 | #define luaL_addsize(B,s) ((B)->n += (s)) | |
144 | ||
145 | LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B); | |
146 | LUALIB_API char *(luaL_prepbuffsize) (luaL_Buffer *B, size_t sz); | |
147 | LUALIB_API void (luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l); | |
148 | LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s); | |
149 | LUALIB_API void (luaL_addvalue) (luaL_Buffer *B); | |
150 | LUALIB_API void (luaL_pushresult) (luaL_Buffer *B); | |
151 | LUALIB_API void (luaL_pushresultsize) (luaL_Buffer *B, size_t sz); | |
152 | LUALIB_API char *(luaL_buffinitsize) (lua_State *L, luaL_Buffer *B, size_t sz); | |
153 | ||
154 | #define luaL_prepbuffer(B) luaL_prepbuffsize(B, LUAL_BUFFERSIZE) | |
155 | ||
156 | /* }====================================================== */ | |
157 | ||
158 | ||
159 | /* compatibility with old module system */ | |
160 | #if defined(LUA_COMPAT_MODULE) | |
161 | ||
162 | LUALIB_API void (luaL_pushmodule) (lua_State *L, const char *modname, | |
163 | int sizehint); | |
164 | LUALIB_API void (luaL_openlib) (lua_State *L, const char *libname, | |
165 | const luaL_Reg *l, int nup); | |
166 | ||
167 | #define luaL_register(L,n,l) (luaL_openlib(L,(n),(l),0)) | |
168 | ||
169 | #endif | |
170 | ||
171 | ||
172 | #endif |