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comparison src/lua/lauxlib.h @ 11:27763b933818

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raise lua sources up one level
author Robert McIntyre <rlm@mit.edu>
date Sat, 03 Mar 2012 11:07:39 -0600
parents src/lua/src/lauxlib.h@f9f4f1b99eed
children
comparison
equal deleted inserted replaced
10:48b74a4e4692 11:27763b933818
1 /*
2 ** $Id: lauxlib.h,v 1.88.1.1 2007/12/27 13:02:25 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 <stddef.h>
13 #include <stdio.h>
14
15 #include "lua.h"
16
17
18 #if defined(LUA_COMPAT_GETN)
19 LUALIB_API int (luaL_getn) (lua_State *L, int t);
20 LUALIB_API void (luaL_setn) (lua_State *L, int t, int n);
21 #else
22 #define luaL_getn(L,i) ((int)lua_objlen(L, i))
23 #define luaL_setn(L,i,j) ((void)0) /* no op! */
24 #endif
25
26 #if defined(LUA_COMPAT_OPENLIB)
27 #define luaI_openlib luaL_openlib
28 #endif
29
30
31 /* extra error code for `luaL_load' */
32 #define LUA_ERRFILE (LUA_ERRERR+1)
33
34
35 typedef struct luaL_Reg {
36 const char *name;
37 lua_CFunction func;
38 } luaL_Reg;
39
40
41
42 LUALIB_API void (luaI_openlib) (lua_State *L, const char *libname,
43 const luaL_Reg *l, int nup);
44 LUALIB_API void (luaL_register) (lua_State *L, const char *libname,
45 const luaL_Reg *l);
46 LUALIB_API int (luaL_getmetafield) (lua_State *L, int obj, const char *e);
47 LUALIB_API int (luaL_callmeta) (lua_State *L, int obj, const char *e);
48 LUALIB_API int (luaL_typerror) (lua_State *L, int narg, const char *tname);
49 LUALIB_API int (luaL_argerror) (lua_State *L, int numarg, const char *extramsg);
50 LUALIB_API const char *(luaL_checklstring) (lua_State *L, int numArg,
51 size_t *l);
52 LUALIB_API const char *(luaL_optlstring) (lua_State *L, int numArg,
53 const char *def, size_t *l);
54 LUALIB_API lua_Number (luaL_checknumber) (lua_State *L, int numArg);
55 LUALIB_API lua_Number (luaL_optnumber) (lua_State *L, int nArg, lua_Number def);
56
57 LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int numArg);
58 LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int nArg,
59 lua_Integer def);
60
61 LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg);
62 LUALIB_API void (luaL_checktype) (lua_State *L, int narg, int t);
63 LUALIB_API void (luaL_checkany) (lua_State *L, int narg);
64
65 LUALIB_API int (luaL_newmetatable) (lua_State *L, const char *tname);
66 LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname);
67
68 LUALIB_API void (luaL_where) (lua_State *L, int lvl);
69 LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...);
70
71 LUALIB_API int (luaL_checkoption) (lua_State *L, int narg, const char *def,
72 const char *const lst[]);
73
74 LUALIB_API int (luaL_ref) (lua_State *L, int t);
75 LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref);
76
77 LUALIB_API int (luaL_loadfile) (lua_State *L, const char *filename);
78 LUALIB_API int (luaL_loadbuffer) (lua_State *L, const char *buff, size_t sz,
79 const char *name);
80 LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s);
81
82 LUALIB_API lua_State *(luaL_newstate) (void);
83
84
85 LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p,
86 const char *r);
87
88 LUALIB_API const char *(luaL_findtable) (lua_State *L, int idx,
89 const char *fname, int szhint);
90
91
92
93
94 /*
95 ** ===============================================================
96 ** some useful macros
97 ** ===============================================================
98 */
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 /*
122 ** {======================================================
123 ** Generic Buffer manipulation
124 ** =======================================================
125 */
126
127
128
129 typedef struct luaL_Buffer {
130 char *p; /* current position in buffer */
131 int lvl; /* number of strings in the stack (level) */
132 lua_State *L;
133 char buffer[LUAL_BUFFERSIZE];
134 } luaL_Buffer;
135
136 #define luaL_addchar(B,c) \
137 ((void)((B)->p < ((B)->buffer+LUAL_BUFFERSIZE) || luaL_prepbuffer(B)), \
138 (*(B)->p++ = (char)(c)))
139
140 /* compatibility only */
141 #define luaL_putchar(B,c) luaL_addchar(B,c)
142
143 #define luaL_addsize(B,n) ((B)->p += (n))
144
145 LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B);
146 LUALIB_API char *(luaL_prepbuffer) (luaL_Buffer *B);
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
152
153 /* }====================================================== */
154
155
156 /* compatibility with ref system */
157
158 /* pre-defined references */
159 #define LUA_NOREF (-2)
160 #define LUA_REFNIL (-1)
161
162 #define lua_ref(L,lock) ((lock) ? luaL_ref(L, LUA_REGISTRYINDEX) : \
163 (lua_pushstring(L, "unlocked references are obsolete"), lua_error(L), 0))
164
165 #define lua_unref(L,ref) luaL_unref(L, LUA_REGISTRYINDEX, (ref))
166
167 #define lua_getref(L,ref) lua_rawgeti(L, LUA_REGISTRYINDEX, (ref))
168
169
170 #define luaL_reg luaL_Reg
171
172 #endif
173
174