lauxlib.h File Reference

#include <stddef.h>
#include <stdio.h>
#include "lua.h"

Go to the source code of this file.

Data Structures
struct	luaL_Reg
struct	luaL_Buffer
struct	luaL_Stream

Macros
#define	LUA_ERRFILE   (LUA_ERRERR+1)
#define	luaL_checkversion(L)   luaL_checkversion_(L, LUA_VERSION_NUM)
#define	LUA_NOREF   (-2)
#define	LUA_REFNIL   (-1)
#define	luaL_loadfile(L, f)   luaL_loadfilex(L,f,NULL)
#define	luaL_newlibtable(L, l)    lua_createtable(L, 0, sizeof(l)/sizeof((l)[0]) - 1)
#define	luaL_newlib(L, l)   (luaL_newlibtable(L,l), luaL_setfuncs(L,l,0))
#define	luaL_argcheck(L, cond, numarg, extramsg)    ((void)((cond) || luaL_argerror(L, (numarg), (extramsg))))
#define	luaL_checkstring(L, n)   (luaL_checklstring(L, (n), NULL))
#define	luaL_optstring(L, n, d)   (luaL_optlstring(L, (n), (d), NULL))
#define	luaL_checkint(L, n)   ((int)luaL_checkinteger(L, (n)))
#define	luaL_optint(L, n, d)   ((int)luaL_optinteger(L, (n), (d)))
#define	luaL_checklong(L, n)   ((long)luaL_checkinteger(L, (n)))
#define	luaL_optlong(L, n, d)   ((long)luaL_optinteger(L, (n), (d)))
#define	luaL_typename(L, i)   lua_typename(L, lua_type(L,(i)))
#define	luaL_dofile(L, fn)    (luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0))
#define	luaL_dostring(L, s)    (luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0))
#define	luaL_getmetatable(L, n)   (lua_getfield(L, LUA_REGISTRYINDEX, (n)))
#define	luaL_opt(L, f, n, d)   (lua_isnoneornil(L,(n)) ? (d) : f(L,(n)))
#define	luaL_loadbuffer(L, s, sz, n)   luaL_loadbufferx(L,s,sz,n,NULL)
#define	luaL_addchar(B, c)
#define	luaL_addsize(B, s)   ((B)->n += (s))
#define	luaL_prepbuffer(B)   luaL_prepbuffsize(B, LUAL_BUFFERSIZE)
#define	LUA_FILEHANDLE   "FILE*"

Typedefs
typedef struct luaL_Reg	luaL_Reg
typedef struct luaL_Buffer	luaL_Buffer
typedef struct luaL_Stream	luaL_Stream

Functions
LUALIB_API void	luaL_checkversion_ (lua_State *L, lua_Number ver)
LUALIB_API int	luaL_getmetafield (lua_State *L, int obj, const char *e)
LUALIB_API int	luaL_callmeta (lua_State *L, int obj, const char *e)
LUALIB_API const char *	luaL_tolstring (lua_State *L, int idx, size_t *len)
LUALIB_API int	luaL_argerror (lua_State *L, int numarg, const char *extramsg)
LUALIB_API const char *	luaL_checklstring (lua_State *L, int numArg, size_t *l)
LUALIB_API const char *	luaL_optlstring (lua_State *L, int numArg, const char *def, size_t *l)
LUALIB_API lua_Number	luaL_checknumber (lua_State *L, int numArg)
LUALIB_API lua_Number	luaL_optnumber (lua_State *L, int nArg, lua_Number def)
LUALIB_API lua_Integer	luaL_checkinteger (lua_State *L, int numArg)
LUALIB_API lua_Integer	luaL_optinteger (lua_State *L, int nArg, lua_Integer def)
LUALIB_API lua_Unsigned	luaL_checkunsigned (lua_State *L, int numArg)
LUALIB_API lua_Unsigned	luaL_optunsigned (lua_State *L, int numArg, lua_Unsigned def)
LUALIB_API void	luaL_checkstack (lua_State *L, int sz, const char *msg)
LUALIB_API void	luaL_checktype (lua_State *L, int narg, int t)
LUALIB_API void	luaL_checkany (lua_State *L, int narg)
LUALIB_API int	luaL_newmetatable (lua_State *L, const char *tname)
LUALIB_API void	luaL_setmetatable (lua_State *L, const char *tname)
LUALIB_API void *	luaL_testudata (lua_State *L, int ud, const char *tname)
LUALIB_API void *	luaL_checkudata (lua_State *L, int ud, const char *tname)
LUALIB_API void	luaL_where (lua_State *L, int lvl)
LUALIB_API int	luaL_error (lua_State *L, const char *fmt,...)
LUALIB_API int	luaL_checkoption (lua_State *L, int narg, const char *def, const char *const lst[])
LUALIB_API int	luaL_fileresult (lua_State *L, int stat, const char *fname)
LUALIB_API int	luaL_execresult (lua_State *L, int stat)
LUALIB_API int	luaL_ref (lua_State *L, int t)
LUALIB_API void	luaL_unref (lua_State *L, int t, int ref)
LUALIB_API int	luaL_loadfilex (lua_State *L, const char *filename, const char *mode)
LUALIB_API int	luaL_loadbufferx (lua_State *L, const char *buff, size_t sz, const char *name, const char *mode)
LUALIB_API int	luaL_loadstring (lua_State *L, const char *s)
LUALIB_API lua_State *	luaL_newstate (void)
LUALIB_API int	luaL_len (lua_State *L, int idx)
LUALIB_API const char *	luaL_gsub (lua_State *L, const char *s, const char *p, const char *r)
LUALIB_API void	luaL_setfuncs (lua_State *L, const luaL_Reg *l, int nup)
LUALIB_API int	luaL_getsubtable (lua_State *L, int idx, const char *fname)
LUALIB_API void	luaL_traceback (lua_State *L, lua_State *L1, const char *msg, int level)
LUALIB_API void	luaL_requiref (lua_State *L, const char *modname, lua_CFunction openf, int glb)
LUALIB_API void	luaL_buffinit (lua_State *L, luaL_Buffer *B)
LUALIB_API char *	luaL_prepbuffsize (luaL_Buffer *B, size_t sz)
LUALIB_API void	luaL_addlstring (luaL_Buffer *B, const char *s, size_t l)
LUALIB_API void	luaL_addstring (luaL_Buffer *B, const char *s)
LUALIB_API void	luaL_addvalue (luaL_Buffer *B)
LUALIB_API void	luaL_pushresult (luaL_Buffer *B)
LUALIB_API void	luaL_pushresultsize (luaL_Buffer *B, size_t sz)
LUALIB_API char *	luaL_buffinitsize (lua_State *L, luaL_Buffer *B, size_t sz)

Macro Definition Documentation

LUA_ERRFILE

#define LUA_ERRFILE   (LUA_ERRERR+1)

Definition at line 20 of file lua-5.2.4/src/lauxlib.h.

LUA_FILEHANDLE

#define LUA_FILEHANDLE   "FILE*"

Definition at line 185 of file lua-5.2.4/src/lauxlib.h.

LUA_NOREF

#define LUA_NOREF   (-2)

Definition at line 69 of file lua-5.2.4/src/lauxlib.h.

LUA_REFNIL

#define LUA_REFNIL   (-1)

Definition at line 70 of file lua-5.2.4/src/lauxlib.h.

luaL_addchar

#define luaL_addchar	(		B,
			c )

Value:

  ((void)((B)->n < (B)->size || luaL_prepbuffsize((B), 1)), \
   ((B)->b[(B)->n++] = (c)))

Definition at line 152 of file lua-5.2.4/src/lauxlib.h.

#define luaL_addchar(B,c) \
  ((void)((B)->n < (B)->size || luaL_prepbuffsize((B), 1)), \
   ((B)->b[(B)->n++] = (c)))

luaL_addsize

#define luaL_addsize	(		B,
			s )   ((B)->n += (s))

Definition at line 156 of file lua-5.2.4/src/lauxlib.h.

luaL_argcheck

#define luaL_argcheck	(		L,
			cond,
			numarg,
			extramsg )    ((void)((cond) || luaL_argerror(L, (numarg), (extramsg))))

Definition at line 113 of file lua-5.2.4/src/lauxlib.h.

#define luaL_argcheck(L, cond,numarg,extramsg)  \
        ((void)((cond) || luaL_argerror(L, (numarg), (extramsg))))

luaL_checkint

#define luaL_checkint	(		L,
			n )   ((int)luaL_checkinteger(L, (n)))

Definition at line 117 of file lua-5.2.4/src/lauxlib.h.

luaL_checklong

#define luaL_checklong	(		L,
			n )   ((long)luaL_checkinteger(L, (n)))

Definition at line 119 of file lua-5.2.4/src/lauxlib.h.

luaL_checkstring

#define luaL_checkstring	(		L,
			n )   (luaL_checklstring(L, (n), NULL))

Definition at line 115 of file lua-5.2.4/src/lauxlib.h.

luaL_checkversion

#define luaL_checkversion

(

L

)

luaL_checkversion_(L, LUA_VERSION_NUM)

Definition at line 30 of file lua-5.2.4/src/lauxlib.h.

Referenced by luaL_setfuncs(), pmain(), pmain(), and pmain().

luaL_dofile

#define luaL_dofile	(		L,
			fn )    (luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0))

Definition at line 124 of file lua-5.2.4/src/lauxlib.h.

#define luaL_dofile(L, fn) \
    (luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0))

luaL_dostring

#define luaL_dostring	(		L,
			s )    (luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0))

Definition at line 127 of file lua-5.2.4/src/lauxlib.h.

#define luaL_dostring(L, s) \
    (luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0))

luaL_getmetatable

#define luaL_getmetatable	(		L,
			n )   (lua_getfield(L, LUA_REGISTRYINDEX, (n)))

Definition at line 130 of file lua-5.2.4/src/lauxlib.h.

luaL_loadbuffer

#define luaL_loadbuffer	(		L,
			s,
			sz,
			n )   luaL_loadbufferx(L,s,sz,n,NULL)

Definition at line 134 of file lua-5.2.4/src/lauxlib.h.

Referenced by addreturn(), addreturn(), db_debug(), db_debug(), db_debug(), db_debug(), dostring(), dostring(), dostring(), dostring(), loadline(), loadline(), luaB_loadstring(), luaL_loadstring(), multiline(), and multiline().

luaL_loadfile

#define luaL_loadfile	(		L,
			f )   luaL_loadfilex(L,f,NULL)

Definition at line 78 of file lua-5.2.4/src/lauxlib.h.

Referenced by dofile(), dofile(), dofile(), dofile(), handle_script(), handle_script(), handle_script(), handle_script(), loader_Lua(), luaB_dofile(), luaB_dofile(), luaB_dofile(), luaB_dofile(), luaB_loadfile(), pmain(), pmain(), pmain(), pmain(), searcher_Lua(), searcher_Lua(), and searcher_Lua().

luaL_newlib

#define luaL_newlib	(		L,
			l )   (luaL_newlibtable(L,l), luaL_setfuncs(L,l,0))

Definition at line 111 of file lua-5.2.4/src/lauxlib.h.

Referenced by luaopen_bit32(), luaopen_coroutine(), luaopen_debug(), luaopen_io(), luaopen_math(), luaopen_os(), luaopen_package(), luaopen_string(), luaopen_struct(), luaopen_table(), and luaopen_utf8().

luaL_newlibtable

#define luaL_newlibtable	(		L,
			l )    lua_createtable(L, 0, sizeof(l)/sizeof((l)[0]) - 1)

Definition at line 108 of file lua-5.2.4/src/lauxlib.h.

#define luaL_newlibtable(L,l)   \
  lua_createtable(L, 0, sizeof(l)/sizeof((l)[0]) - 1)

Referenced by createmeta(), createmetatable(), and luaopen_sqlitelib().

luaL_opt

#define luaL_opt	(		L,
			f,
			n,
			d )   (lua_isnoneornil(L,(n)) ? (d) : f(L,(n)))

Definition at line 132 of file lua-5.2.4/src/lauxlib.h.

luaL_optint

#define luaL_optint	(		L,
			n,
			d )   ((int)luaL_optinteger(L, (n), (d)))

Definition at line 118 of file lua-5.2.4/src/lauxlib.h.

luaL_optlong

#define luaL_optlong	(		L,
			n,
			d )   ((long)luaL_optinteger(L, (n), (d)))

Definition at line 120 of file lua-5.2.4/src/lauxlib.h.

luaL_optstring

#define luaL_optstring	(		L,
			n,
			d )   (luaL_optlstring(L, (n), (d), NULL))

Definition at line 116 of file lua-5.2.4/src/lauxlib.h.

luaL_prepbuffer

#define luaL_prepbuffer

(

B

)

luaL_prepbuffsize(B, LUAL_BUFFERSIZE)

Definition at line 167 of file lua-5.2.4/src/lauxlib.h.

Referenced by read_all(), read_all(), read_chars(), read_line(), read_line(), read_line(), and read_line().

luaL_typename

#define luaL_typename	(		L,
			i )   lua_typename(L, lua_type(L,(i)))

Definition at line 122 of file lua-5.2.4/src/lauxlib.h.

Typedef Documentation

luaL_Buffer

typedef struct luaL_Buffer luaL_Buffer

luaL_Reg

typedef struct luaL_Reg luaL_Reg

luaL_Stream

typedef struct luaL_Stream luaL_Stream

Function Documentation

luaL_addlstring()

LUALIB_API void luaL_addlstring	(	luaL_Buffer *	B,
		const char *	s,
		size_t	l )

Definition at line 436 of file lua-5.1.5/src/lauxlib.c.

                                                                          {
  while (l--)
    luaL_addchar(B, *s++);
}

luaL_addstring()

LUALIB_API void luaL_addstring	(	luaL_Buffer *	B,
		const char *	s )

Definition at line 442 of file lua-5.1.5/src/lauxlib.c.

                                                               {
  luaL_addlstring(B, s, strlen(s));
}

luaL_addvalue()

LUALIB_API void luaL_addvalue

(

luaL_Buffer *

B

)

Definition at line 454 of file lua-5.1.5/src/lauxlib.c.

                                               {
  lua_State *L = B->L;
  size_t vl;
  const char *s = lua_tolstring(L, -1, &vl);
  if (vl <= bufffree(B)) {  /* fit into buffer? */
    memcpy(B->p, s, vl);  /* put it there */
    B->p += vl;
    lua_pop(L, 1);  /* remove from stack */
  }
  else {
    if (emptybuffer(B))
      lua_insert(L, -2);  /* put buffer before new value */
    B->lvl++;  /* add new value into B stack */
    adjuststack(B);
  }
}

luaL_argerror()

LUALIB_API int luaL_argerror	(	lua_State *	L,
		int	numarg,
		const char *	extramsg )

Definition at line 43 of file lua-5.1.5/src/lauxlib.c.

                                                                            {
  lua_Debug ar;
  if (!lua_getstack(L, 0, &ar))  /* no stack frame? */
    return luaL_error(L, "bad argument #%d (%s)", narg, extramsg);
  lua_getinfo(L, "n", &ar);
  if (strcmp(ar.namewhat, "method") == 0) {
    narg--;  /* do not count `self' */
    if (narg == 0)  /* error is in the self argument itself? */
      return luaL_error(L, "calling " LUA_QS " on bad self (%s)",
                           ar.name, extramsg);
  }
  if (ar.name == NULL)
    ar.name = "?";
  return luaL_error(L, "bad argument #%d to " LUA_QS " (%s)",
                        narg, ar.name, extramsg);
}

luaL_buffinit()

LUALIB_API void luaL_buffinit	(	lua_State *	L,
		luaL_Buffer *	B )

Definition at line 472 of file lua-5.1.5/src/lauxlib.c.

                                                             {
  B->L = L;
  B->p = B->buffer;
  B->lvl = 0;
}

luaL_buffinitsize()

LUALIB_API char * luaL_buffinitsize	(	lua_State *	L,
		luaL_Buffer *	B,
		size_t	sz )

Definition at line 504 of file lua-5.2.4/src/lauxlib.c.

                                                                             {
  luaL_buffinit(L, B);
  return luaL_prepbuffsize(B, sz);
}

luaL_callmeta()

LUALIB_API int luaL_callmeta	(	lua_State *	L,
		int	obj,
		const char *	e )

Definition at line 219 of file lua-5.1.5/src/lauxlib.c.

                                                                        {
  obj = abs_index(L, obj);
  if (!luaL_getmetafield(L, obj, event))  /* no metafield? */
    return 0;
  lua_pushvalue(L, obj);
  lua_call(L, 1, 1);
  return 1;
}

luaL_checkany()

LUALIB_API void luaL_checkany	(	lua_State *	L,
		int	narg )

Definition at line 152 of file lua-5.1.5/src/lauxlib.c.

                                                       {
  if (lua_type(L, narg) == LUA_TNONE)
    luaL_argerror(L, narg, "value expected");
}

luaL_checkinteger()

LUALIB_API lua_Integer luaL_checkinteger	(	lua_State *	L,
		int	numArg )

Definition at line 189 of file lua-5.1.5/src/lauxlib.c.

                                                                  {
  lua_Integer d = lua_tointeger(L, narg);
  if (d == 0 && !lua_isnumber(L, narg))  /* avoid extra test when d is not 0 */
    tag_error(L, narg, LUA_TNUMBER);
  return d;
}

luaL_checklstring()

LUALIB_API const char * luaL_checklstring	(	lua_State *	L,
		int	numArg,
		size_t *	l )

Definition at line 158 of file lua-5.1.5/src/lauxlib.c.

                                                                               {
  const char *s = lua_tolstring(L, narg, len);
  if (!s) tag_error(L, narg, LUA_TSTRING);
  return s;
}

luaL_checknumber()

LUALIB_API lua_Number luaL_checknumber	(	lua_State *	L,
		int	numArg )

Definition at line 176 of file lua-5.1.5/src/lauxlib.c.

                                                                {
  lua_Number d = lua_tonumber(L, narg);
  if (d == 0 && !lua_isnumber(L, narg))  /* avoid extra test when d is not 0 */
    tag_error(L, narg, LUA_TNUMBER);
  return d;
}

luaL_checkoption()

LUALIB_API int luaL_checkoption	(	lua_State *	L,
		int	narg,
		const char *	def,
		const char *const	lst[] )

Definition at line 99 of file lua-5.1.5/src/lauxlib.c.

                                                          {
  const char *name = (def) ? luaL_optstring(L, narg, def) :
                             luaL_checkstring(L, narg);
  int i;
  for (i=0; lst[i]; i++)
    if (strcmp(lst[i], name) == 0)
      return i;
  return luaL_argerror(L, narg,
                       lua_pushfstring(L, "invalid option " LUA_QS, name));
}

luaL_checkstack()

LUALIB_API void luaL_checkstack	(	lua_State *	L,
		int	sz,
		const char *	msg )

Definition at line 140 of file lua-5.1.5/src/lauxlib.c.

                                                                           {
  if (!lua_checkstack(L, space))
    luaL_error(L, "stack overflow (%s)", mes);
}

luaL_checktype()

LUALIB_API void luaL_checktype	(	lua_State *	L,
		int	narg,
		int	t )

Definition at line 146 of file lua-5.1.5/src/lauxlib.c.

                                                               {
  if (lua_type(L, narg) != t)
    tag_error(L, narg, t);
}

luaL_checkudata()

LUALIB_API void * luaL_checkudata	(	lua_State *	L,
		int	ud,
		const char *	tname )

Definition at line 124 of file lua-5.1.5/src/lauxlib.c.

                                                                           {
  void *p = lua_touserdata(L, ud);
  if (p != NULL) {  /* value is a userdata? */
    if (lua_getmetatable(L, ud)) {  /* does it have a metatable? */
      lua_getfield(L, LUA_REGISTRYINDEX, tname);  /* get correct metatable */
      if (lua_rawequal(L, -1, -2)) {  /* does it have the correct mt? */
        lua_pop(L, 2);  /* remove both metatables */
        return p;
      }
    }
  }
  luaL_typerror(L, ud, tname);  /* else error */
  return NULL;  /* to avoid warnings */
}

luaL_checkunsigned()

LUALIB_API lua_Unsigned luaL_checkunsigned	(	lua_State *	L,
		int	numArg )

Definition at line 398 of file lua-5.2.4/src/lauxlib.c.

                                                                    {
  int isnum;
  lua_Unsigned d = lua_tounsignedx(L, narg, &isnum);
  if (!isnum)
    tag_error(L, narg, LUA_TNUMBER);
  return d;
}

References LUA_TNUMBER, lua_tounsignedx(), and tag_error().

Referenced by andaux(), b_arshift(), b_extract(), b_lshift(), b_or(), b_replace(), b_rot(), b_rshift(), b_xor(), luaL_optunsigned(), and math_randomseed().

luaL_checkversion_()

LUALIB_API void luaL_checkversion_	(	lua_State *	L,
		lua_Number	ver )

Definition at line 944 of file lua-5.2.4/src/lauxlib.c.

                                                                  {
  const lua_Number *v = lua_version(L);
  if (v != lua_version(NULL))
    luaL_error(L, "multiple Lua VMs detected");
  else if (*v != ver)
    luaL_error(L, "version mismatch: app. needs %f, Lua core provides %f",
                  ver, *v);
  /* check conversions number -> integer types */
  lua_pushnumber(L, -(lua_Number)0x1234);
  if (lua_tointeger(L, -1) != -0x1234 ||
      lua_tounsigned(L, -1) != (lua_Unsigned)-0x1234)
    luaL_error(L, "bad conversion number->int;"
                  " must recompile Lua with proper settings");
  lua_pop(L, 1);
}

References lua_pop, lua_pushnumber(), lua_tointeger, lua_tounsigned, lua_version(), luaL_error(), and NULL.

luaL_error()

LUALIB_API int luaL_error	(	lua_State *	L,
		const char *	fmt,
			... )

Definition at line 86 of file lua-5.1.5/src/lauxlib.c.

                                                               {
  va_list argp;
  va_start(argp, fmt);
  luaL_where(L, 1);
  lua_pushvfstring(L, fmt, argp);
  va_end(argp);
  lua_concat(L, 2);
  return lua_error(L);
}

luaL_execresult()

LUALIB_API int luaL_execresult	(	lua_State *	L,
		int	stat )

Definition at line 247 of file lua-5.2.4/src/lauxlib.c.

                                                        {
  const char *what = "exit";  /* type of termination */
  if (stat == -1)  /* error? */
    return luaL_fileresult(L, 0, NULL);
  else {
    inspectstat(stat, what);  /* interpret result */
    if (*what == 'e' && stat == 0)  /* successful termination? */
      lua_pushboolean(L, 1);
    else
      lua_pushnil(L);
    lua_pushstring(L, what);
    lua_pushinteger(L, stat);
    return 3;  /* return true/nil,what,code */
  }
}

luaL_fileresult()

LUALIB_API int luaL_fileresult	(	lua_State *	L,
		int	stat,
		const char *	fname )

Definition at line 207 of file lua-5.2.4/src/lauxlib.c.

                                                                           {
  int en = errno;  /* calls to Lua API may change this value */
  if (stat) {
    lua_pushboolean(L, 1);
    return 1;
  }
  else {
    lua_pushnil(L);
    if (fname)
      lua_pushfstring(L, "%s: %s", fname, strerror(en));
    else
      lua_pushstring(L, strerror(en));
    lua_pushinteger(L, en);
    return 3;
  }
}

luaL_getmetafield()

LUALIB_API int luaL_getmetafield	(	lua_State *	L,
		int	obj,
		const char *	e )

Definition at line 203 of file lua-5.1.5/src/lauxlib.c.

                                                                            {
  if (!lua_getmetatable(L, obj))  /* no metatable? */
    return 0;
  lua_pushstring(L, event);
  lua_rawget(L, -2);
  if (lua_isnil(L, -1)) {
    lua_pop(L, 2);  /* remove metatable and metafield */
    return 0;
  }
  else {
    lua_remove(L, -2);  /* remove only metatable */
    return 1;
  }
}

luaL_getsubtable()

LUALIB_API int luaL_getsubtable	(	lua_State *	L,
		int	idx,
		const char *	fname )

Definition at line 866 of file lua-5.2.4/src/lauxlib.c.

                                                                           {
  lua_getfield(L, idx, fname);
  if (lua_istable(L, -1)) return 1;  /* table already there */
  else {
    lua_pop(L, 1);  /* remove previous result */
    idx = lua_absindex(L, idx);
    lua_newtable(L);
    lua_pushvalue(L, -1);  /* copy to be left at top */
    lua_setfield(L, idx, fname);  /* assign new table to field */
    return 0;  /* false, because did not find table there */
  }
}

luaL_gsub()

LUALIB_API const char * luaL_gsub	(	lua_State *	L,
		const char *	s,
		const char *	p,
		const char *	r )

Definition at line 340 of file lua-5.1.5/src/lauxlib.c.

                                                                              {
  const char *wild;
  size_t l = strlen(p);
  luaL_Buffer b;
  luaL_buffinit(L, &b);
  while ((wild = strstr(s, p)) != NULL) {
    luaL_addlstring(&b, s, wild - s);  /* push prefix */
    luaL_addstring(&b, r);  /* push replacement in place of pattern */
    s = wild + l;  /* continue after `p' */
  }
  luaL_addstring(&b, s);  /* push last suffix */
  luaL_pushresult(&b);
  return lua_tostring(L, -1);
}

luaL_len()

LUALIB_API int luaL_len	(	lua_State *	L,
		int	idx )

Definition at line 725 of file lua-5.2.4/src/lauxlib.c.

                                                {
  int l;
  int isnum;
  lua_len(L, idx);
  l = (int)lua_tointegerx(L, -1, &isnum);
  if (!isnum)
    luaL_error(L, "object length is not a number");
  lua_pop(L, 1);  /* remove object */
  return l;
}

luaL_loadbufferx()

LUALIB_API int luaL_loadbufferx	(	lua_State *	L,
		const char *	buff,
		size_t	sz,
		const char *	name,
		const char *	mode )

Definition at line 682 of file lua-5.2.4/src/lauxlib.c.

                                                                     {
  LoadS ls;
  ls.s = buff;
  ls.size = size;
  return lua_load(L, getS, &ls, name, mode);
}

luaL_loadfilex()

LUALIB_API int luaL_loadfilex	(	lua_State *	L,
		const char *	filename,
		const char *	mode )

Definition at line 630 of file lua-5.2.4/src/lauxlib.c.

                                                               {
  LoadF lf;
  int status, readstatus;
  int c;
  int fnameindex = lua_gettop(L) + 1;  /* index of filename on the stack */
  if (filename == NULL) {
    lua_pushliteral(L, "=stdin");
    lf.f = stdin;
  }
  else {
    lua_pushfstring(L, "@%s", filename);
    lf.f = fopen(filename, "r");
    if (lf.f == NULL) return errfile(L, "open", fnameindex);
  }
  if (skipcomment(&lf, &c))  /* read initial portion */
    lf.buff[lf.n++] = '\n';  /* add line to correct line numbers */
  if (c == LUA_SIGNATURE[0] && filename) {  /* binary file? */
    lf.f = freopen(filename, "rb", lf.f);  /* reopen in binary mode */
    if (lf.f == NULL) return errfile(L, "reopen", fnameindex);
    skipcomment(&lf, &c);  /* re-read initial portion */
  }
  if (c != EOF)
    lf.buff[lf.n++] = c;  /* 'c' is the first character of the stream */
  status = lua_load(L, getF, &lf, lua_tostring(L, -1), mode);
  readstatus = ferror(lf.f);
  if (filename) fclose(lf.f);  /* close file (even in case of errors) */
  if (readstatus) {
    lua_settop(L, fnameindex);  /* ignore results from `lua_load' */
    return errfile(L, "read", fnameindex);
  }
  lua_remove(L, fnameindex);
  return status;
}

luaL_loadstring()

LUALIB_API int luaL_loadstring	(	lua_State *	L,
		const char *	s )

Definition at line 618 of file lua-5.1.5/src/lauxlib.c.

                                                               {
  return luaL_loadbuffer(L, s, strlen(s), s);
}

luaL_newmetatable()

LUALIB_API int luaL_newmetatable	(	lua_State *	L,
		const char *	tname )

Definition at line 112 of file lua-5.1.5/src/lauxlib.c.

                                                                   {
  lua_getfield(L, LUA_REGISTRYINDEX, tname);  /* get registry.name */
  if (!lua_isnil(L, -1))  /* name already in use? */
    return 0;  /* leave previous value on top, but return 0 */
  lua_pop(L, 1);
  lua_newtable(L);  /* create metatable */
  lua_pushvalue(L, -1);
  lua_setfield(L, LUA_REGISTRYINDEX, tname);  /* registry.name = metatable */
  return 1;
}

luaL_newstate()

LUALIB_API lua_State * luaL_newstate

(

void

)

Definition at line 647 of file lua-5.1.5/src/lauxlib.c.

                                           {
  lua_State *L = lua_newstate(l_alloc, NULL);
  if (L) lua_atpanic(L, &panic);
  return L;
}

luaL_optinteger()

LUALIB_API lua_Integer luaL_optinteger	(	lua_State *	L,
		int	nArg,
		lua_Integer	def )

Definition at line 197 of file lua-5.1.5/src/lauxlib.c.

                                                                       {
  return luaL_opt(L, luaL_checkinteger, narg, def);
}

luaL_optlstring()

LUALIB_API const char * luaL_optlstring	(	lua_State *	L,
		int	numArg,
		const char *	def,
		size_t *	l )

Definition at line 165 of file lua-5.1.5/src/lauxlib.c.

                                                                      {
  if (lua_isnoneornil(L, narg)) {
    if (len)
      *len = (def ? strlen(def) : 0);
    return def;
  }
  else return luaL_checklstring(L, narg, len);
}

luaL_optnumber()

LUALIB_API lua_Number luaL_optnumber	(	lua_State *	L,
		int	nArg,
		lua_Number	def )

Definition at line 184 of file lua-5.1.5/src/lauxlib.c.

                                                                              {
  return luaL_opt(L, luaL_checknumber, narg, def);
}

luaL_optunsigned()

LUALIB_API lua_Unsigned luaL_optunsigned	(	lua_State *	L,
		int	numArg,
		lua_Unsigned	def )

Definition at line 413 of file lua-5.2.4/src/lauxlib.c.

                                                                          {
  return luaL_opt(L, luaL_checkunsigned, narg, def);
}

References luaL_checkunsigned(), and luaL_opt.

luaL_prepbuffsize()

LUALIB_API char * luaL_prepbuffsize	(	luaL_Buffer *	B,
		size_t	sz )

Definition at line 437 of file lua-5.2.4/src/lauxlib.c.

                                                               {
  lua_State *L = B->L;
  if (B->size - B->n < sz) {  /* not enough space? */
    char *newbuff;
    size_t newsize = B->size * 2;  /* double buffer size */
    if (newsize - B->n < sz)  /* not big enough? */
      newsize = B->n + sz;
    if (newsize < B->n || newsize - B->n < sz)
      luaL_error(L, "buffer too large");
    /* create larger buffer */
    newbuff = (char *)lua_newuserdata(L, newsize * sizeof(char));
    /* move content to new buffer */
    memcpy(newbuff, B->b, B->n * sizeof(char));
    if (buffonstack(B))
      lua_remove(L, -2);  /* remove old buffer */
    B->b = newbuff;
    B->size = newsize;
  }
  return &B->b[B->n];
}

luaL_pushresult()

LUALIB_API void luaL_pushresult

(

luaL_Buffer *

B

)

Definition at line 447 of file lua-5.1.5/src/lauxlib.c.

                                                 {
  emptybuffer(B);
  lua_concat(B->L, B->lvl);
  B->lvl = 1;
}

luaL_pushresultsize()

LUALIB_API void luaL_pushresultsize	(	luaL_Buffer *	B,
		size_t	sz )

Definition at line 479 of file lua-5.2.4/src/lauxlib.c.

                                                                {
  luaL_addsize(B, sz);
  luaL_pushresult(B);
}

luaL_ref()

LUALIB_API int luaL_ref	(	lua_State *	L,
		int	t )

Definition at line 481 of file lua-5.1.5/src/lauxlib.c.

                                              {
  int ref;
  t = abs_index(L, t);
  if (lua_isnil(L, -1)) {
    lua_pop(L, 1);  /* remove from stack */
    return LUA_REFNIL;  /* `nil' has a unique fixed reference */
  }
  lua_rawgeti(L, t, FREELIST_REF);  /* get first free element */
  ref = (int)lua_tointeger(L, -1);  /* ref = t[FREELIST_REF] */
  lua_pop(L, 1);  /* remove it from stack */
  if (ref != 0) {  /* any free element? */
    lua_rawgeti(L, t, ref);  /* remove it from list */
    lua_rawseti(L, t, FREELIST_REF);  /* (t[FREELIST_REF] = t[ref]) */
  }
  else {  /* no free elements */
    ref = (int)lua_objlen(L, t);
    ref++;  /* create new reference */
  }
  lua_rawseti(L, t, ref);
  return ref;
}

luaL_requiref()

LUALIB_API void luaL_requiref	(	lua_State *	L,
		const char *	modname,
		lua_CFunction	openf,
		int	glb )

Definition at line 886 of file lua-5.2.4/src/lauxlib.c.

                                                             {
  lua_pushcfunction(L, openf);
  lua_pushstring(L, modname);  /* argument to open function */
  lua_call(L, 1, 1);  /* open module */
  luaL_getsubtable(L, LUA_REGISTRYINDEX, "_LOADED");
  lua_pushvalue(L, -2);  /* make copy of module (call result) */
  lua_setfield(L, -2, modname);  /* _LOADED[modname] = module */
  lua_pop(L, 1);  /* remove _LOADED table */
  if (glb) {
    lua_pushvalue(L, -1);  /* copy of 'mod' */
    lua_setglobal(L, modname);  /* _G[modname] = module */
  }
}

luaL_setfuncs()

LUALIB_API void luaL_setfuncs	(	lua_State *	L,
		const luaL_Reg *	l,
		int	nup )

Definition at line 848 of file lua-5.2.4/src/lauxlib.c.

                                                                         {
  luaL_checkversion(L);
  luaL_checkstack(L, nup, "too many upvalues");
  for (; l->name != NULL; l++) {  /* fill the table with given functions */
    int i;
    for (i = 0; i < nup; i++)  /* copy upvalues to the top */
      lua_pushvalue(L, -nup);
    lua_pushcclosure(L, l->func, nup);  /* closure with those upvalues */
    lua_setfield(L, -(nup + 2), l->name);
  }
  lua_pop(L, nup);  /* remove upvalues */
}

luaL_setmetatable()

LUALIB_API void luaL_setmetatable	(	lua_State *	L,
		const char *	tname )

Definition at line 284 of file lua-5.2.4/src/lauxlib.c.

                                                                    {
  luaL_getmetatable(L, tname);
  lua_setmetatable(L, -2);
}

luaL_testudata()

LUALIB_API void * luaL_testudata	(	lua_State *	L,
		int	ud,
		const char *	tname )

Definition at line 290 of file lua-5.2.4/src/lauxlib.c.

                                                                          {
  void *p = lua_touserdata(L, ud);
  if (p != NULL) {  /* value is a userdata? */
    if (lua_getmetatable(L, ud)) {  /* does it have a metatable? */
      luaL_getmetatable(L, tname);  /* get correct metatable */
      if (!lua_rawequal(L, -1, -2))  /* not the same? */
        p = NULL;  /* value is a userdata with wrong metatable */
      lua_pop(L, 2);  /* remove both metatables */
      return p;
    }
  }
  return NULL;  /* value is not a userdata with a metatable */
}

luaL_tolstring()

LUALIB_API const char * luaL_tolstring	(	lua_State *	L,
		int	idx,
		size_t *	len )

Definition at line 737 of file lua-5.2.4/src/lauxlib.c.

                                                                           {
  if (!luaL_callmeta(L, idx, "__tostring")) {  /* no metafield? */
    switch (lua_type(L, idx)) {
      case LUA_TNUMBER:
      case LUA_TSTRING:
        lua_pushvalue(L, idx);
        break;
      case LUA_TBOOLEAN:
        lua_pushstring(L, (lua_toboolean(L, idx) ? "true" : "false"));
        break;
      case LUA_TNIL:
        lua_pushliteral(L, "nil");
        break;
      default:
        lua_pushfstring(L, "%s: %p", luaL_typename(L, idx),
                                            lua_topointer(L, idx));
        break;
    }
  }
  return lua_tolstring(L, -1, len);
}

luaL_traceback()

LUALIB_API void luaL_traceback	(	lua_State *	L,
		lua_State *	L1,
		const char *	msg,
		int	level )

Definition at line 116 of file lua-5.2.4/src/lauxlib.c.

                                                            {
  lua_Debug ar;
  int top = lua_gettop(L);
  int numlevels = countlevels(L1);
  int mark = (numlevels > LEVELS1 + LEVELS2) ? LEVELS1 : 0;
  if (msg) lua_pushfstring(L, "%s\n", msg);
  lua_pushliteral(L, "stack traceback:");
  while (lua_getstack(L1, level++, &ar)) {
    if (level == mark) {  /* too many levels? */
      lua_pushliteral(L, "\n\t...");  /* add a '...' */
      level = numlevels - LEVELS2;  /* and skip to last ones */
    }
    else {
      lua_getinfo(L1, "Slnt", &ar);
      lua_pushfstring(L, "\n\t%s:", ar.short_src);
      if (ar.currentline > 0)
        lua_pushfstring(L, "%d:", ar.currentline);
      lua_pushliteral(L, " in ");
      pushfuncname(L, &ar);
      if (ar.istailcall)
        lua_pushliteral(L, "\n\t(...tail calls...)");
      lua_concat(L, lua_gettop(L) - top);
    }
  }
  lua_concat(L, lua_gettop(L) - top);
}

luaL_unref()

LUALIB_API void luaL_unref	(	lua_State *	L,
		int	t,
		int	ref )

Definition at line 504 of file lua-5.1.5/src/lauxlib.c.

                                                          {
  if (ref >= 0) {
    t = abs_index(L, t);
    lua_rawgeti(L, t, FREELIST_REF);
    lua_rawseti(L, t, ref);  /* t[ref] = t[FREELIST_REF] */
    lua_pushinteger(L, ref);
    lua_rawseti(L, t, FREELIST_REF);  /* t[FREELIST_REF] = ref */
  }
}

luaL_where()

LUALIB_API void luaL_where	(	lua_State *	L,
		int	lvl )

Definition at line 73 of file lua-5.1.5/src/lauxlib.c.

                                                     {
  lua_Debug ar;
  if (lua_getstack(L, level, &ar)) {  /* check function at level */
    lua_getinfo(L, "Sl", &ar);  /* get info about it */
    if (ar.currentline > 0) {  /* is there info? */
      lua_pushfstring(L, "%s:%d: ", ar.short_src, ar.currentline);
      return;
    }
  }
  lua_pushliteral(L, "");  /* else, no information available... */
}