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Experimental: update Lua scripting library to 5.2 version

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This commit is contained in:
alexey.min
2012-05-20 11:19:35 +00:00
parent 5ac7f9a5ba
commit 9b3c92fce3
62 changed files with 8866 additions and 6021 deletions
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724
l2detect/lua/luaconf.h
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@@ -1,5 +1,5 @@
/*
** $Id: luaconf.h,v 1.82.1.7 2008/02/11 16:25:08 roberto Exp $
** $Id: luaconf.h,v 1.170 2011/12/06 16:58:36 roberto Exp $
** Configuration file for Lua
** See Copyright Notice in lua.h
*/
@@ -24,30 +24,44 @@
** CHANGE it (define it) if you want Lua to avoid the use of any
** non-ansi feature or library.
*/
#if defined(__STRICT_ANSI__)
#if !defined(LUA_ANSI) && defined(__STRICT_ANSI__)
#define LUA_ANSI
#endif
#if !defined(LUA_ANSI) && defined(_WIN32)
#define LUA_WIN
#if !defined(LUA_ANSI) && defined(_WIN32) && !defined(_WIN32_WCE)
#define LUA_WIN /* enable goodies for regular Windows platforms */
#endif
#if defined(LUA_WIN)
#define LUA_DL_DLL
#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
#endif
#if defined(LUA_USE_LINUX)
#define LUA_USE_POSIX
#define LUA_USE_DLOPEN /* needs an extra library: -ldl */
#define LUA_USE_READLINE /* needs some extra libraries */
#define LUA_USE_STRTODHEX /* assume 'strtod' handles hexa formats */
#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
#define LUA_USE_LONGLONG /* assume support for long long */
#endif
#if defined(LUA_USE_MACOSX)
#define LUA_USE_POSIX
#define LUA_DL_DYLD /* does not need extra library */
#define LUA_USE_DLOPEN /* does not need -ldl */
#define LUA_USE_READLINE /* needs an extra library: -lreadline */
#define LUA_USE_STRTODHEX /* assume 'strtod' handles hexa formats */
#define LUA_USE_AFORMAT /* assume 'printf' handles 'aA' specifiers */
#define LUA_USE_LONGLONG /* assume support for long long */
#endif
/*
@@ LUA_USE_POSIX includes all functionallity listed as X/Open System
@@ LUA_USE_POSIX includes all functionality listed as X/Open System
@* Interfaces Extension (XSI).
** CHANGE it (define it) if your system is XSI compatible.
*/
@@ -56,20 +70,10 @@
#define LUA_USE_ISATTY
#define LUA_USE_POPEN
#define LUA_USE_ULONGJMP
#define LUA_USE_GMTIME_R
#endif
/*
@@ LUA_PATH and LUA_CPATH are the names of the environment variables that
@* Lua check to set its paths.
@@ LUA_INIT is the name of the environment variable that Lua
@* checks for initialization code.
** CHANGE them if you want different names.
*/
#define LUA_PATH "LUA_PATH"
#define LUA_CPATH "LUA_CPATH"
#define LUA_INIT "LUA_INIT"
/*
@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
@@ -80,7 +84,7 @@
** hierarchy or if you want to install your libraries in
** non-conventional directories.
*/
#if defined(_WIN32)
#if defined(_WIN32) /* { */
/*
** In Windows, any exclamation mark ('!') in the path is replaced by the
** path of the directory of the executable file of the current process.
@@ -88,21 +92,23 @@
#define LUA_LDIR "!\\lua\\"
#define LUA_CDIR "!\\"
#define LUA_PATH_DEFAULT \
".\\?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \
LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua"
LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \
LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua;" ".\\?.lua"
#define LUA_CPATH_DEFAULT \
".\\?.dll;" LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll"
LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll;" ".\\?.dll"
#else
#else /* }{ */
#define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR "/"
#define LUA_ROOT "/usr/local/"
#define LUA_LDIR LUA_ROOT "share/lua/5.1/"
#define LUA_CDIR LUA_ROOT "lib/lua/5.1/"
#define LUA_LDIR LUA_ROOT "share/lua/" LUA_VDIR
#define LUA_CDIR LUA_ROOT "lib/lua/" LUA_VDIR
#define LUA_PATH_DEFAULT \
"./?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \
LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua"
LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \
LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua;" "./?.lua"
#define LUA_CPATH_DEFAULT \
"./?.so;" LUA_CDIR"?.so;" LUA_CDIR"loadall.so"
#endif
LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so"
#endif /* } */
/*
@@ -118,79 +124,67 @@
/*
@@ LUA_PATHSEP is the character that separates templates in a path.
@@ LUA_PATH_MARK is the string that marks the substitution points in a
@* template.
@@ LUA_EXECDIR in a Windows path is replaced by the executable's
@* directory.
@@ LUA_IGMARK is a mark to ignore all before it when bulding the
@* luaopen_ function name.
** CHANGE them if for some reason your system cannot use those
** characters. (E.g., if one of those characters is a common character
** in file/directory names.) Probably you do not need to change them.
@@ LUA_ENV is the name of the variable that holds the current
@@ environment, used to access global names.
** CHANGE it if you do not like this name.
*/
#define LUA_PATHSEP ";"
#define LUA_PATH_MARK "?"
#define LUA_EXECDIR "!"
#define LUA_IGMARK "-"
/*
@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger.
** CHANGE that if ptrdiff_t is not adequate on your machine. (On most
** machines, ptrdiff_t gives a good choice between int or long.)
*/
#define LUA_INTEGER ptrdiff_t
#define LUA_ENV "_ENV"
/*
@@ LUA_API is a mark for all core API functions.
@@ LUALIB_API is a mark for all standard library functions.
@@ LUALIB_API is a mark for all auxiliary library functions.
@@ LUAMOD_API is a mark for all standard library opening functions.
** CHANGE them if you need to define those functions in some special way.
** For instance, if you want to create one Windows DLL with the core and
** the libraries, you may want to use the following definition (define
** LUA_BUILD_AS_DLL to get it).
*/
#if defined(LUA_BUILD_AS_DLL)
#if defined(LUA_BUILD_AS_DLL) /* { */
#if defined(LUA_CORE) || defined(LUA_LIB)
#if defined(LUA_CORE) || defined(LUA_LIB) /* { */
#define LUA_API __declspec(dllexport)
#else
#else /* }{ */
#define LUA_API __declspec(dllimport)
#endif
#endif /* } */
#else
#else /* }{ */
#define LUA_API extern
#endif
#endif /* } */
/* more often than not the libs go together with the core */
#define LUALIB_API LUA_API
#define LUAMOD_API LUALIB_API
/*
@@ LUAI_FUNC is a mark for all extern functions that are not to be
@* exported to outside modules.
@@ LUAI_DATA is a mark for all extern (const) variables that are not to
@* be exported to outside modules.
@@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables
@* that are not to be exported to outside modules (LUAI_DDEF for
@* definitions and LUAI_DDEC for declarations).
** CHANGE them if you need to mark them in some special way. Elf/gcc
** (versions 3.2 and later) mark them as "hidden" to optimize access
** when Lua is compiled as a shared library.
** when Lua is compiled as a shared library. Not all elf targets support
** this attribute. Unfortunately, gcc does not offer a way to check
** whether the target offers that support, and those without support
** give a warning about it. To avoid these warnings, change to the
** default definition.
*/
#if defined(luaall_c)
#define LUAI_FUNC static
#define LUAI_DATA /* empty */
#elif defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
defined(__ELF__)
#if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
defined(__ELF__) /* { */
#define LUAI_FUNC __attribute__((visibility("hidden"))) extern
#define LUAI_DATA LUAI_FUNC
#define LUAI_DDEC LUAI_FUNC
#define LUAI_DDEF /* empty */
#else
#else /* }{ */
#define LUAI_FUNC extern
#define LUAI_DATA extern
#endif
#define LUAI_DDEC extern
#define LUAI_DDEF /* empty */
#endif /* } */
@@ -210,177 +204,103 @@
#define LUA_IDSIZE 60
/*
@@ luai_writestring/luai_writeline define how 'print' prints its results.
** They are only used in libraries and the stand-alone program. (The #if
** avoids including 'stdio.h' everywhere.)
*/
#if defined(LUA_LIB) || defined(lua_c)
#include <stdio.h>
#define luai_writestring(s,l) fwrite((s), sizeof(char), (l), stdout)
#define luai_writeline() (luai_writestring("\n", 1), fflush(stdout))
#endif
/*
@@ luai_writestringerror defines how to print error messages.
** (A format string with one argument is enough for Lua...)
*/
#define luai_writestringerror(s,p) \
(fprintf(stderr, (s), (p)), fflush(stderr))
/*
** {==================================================================
** Stand-alone configuration
** Compatibility with previous versions
** ===================================================================
*/
#if defined(lua_c) || defined(luaall_c)
/*
@@ LUA_COMPAT_ALL controls all compatibility options.
** You can define it to get all options, or change specific options
** to fit your specific needs.
*/
#if defined(LUA_COMPAT_ALL) /* { */
/*
@@ lua_stdin_is_tty detects whether the standard input is a 'tty' (that
@* is, whether we're running lua interactively).
** CHANGE it if you have a better definition for non-POSIX/non-Windows
** systems.
@@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'.
** You can replace it with 'table.unpack'.
*/
#if defined(LUA_USE_ISATTY)
#include <unistd.h>
#define lua_stdin_is_tty() isatty(0)
#elif defined(LUA_WIN)
#include <io.h>
#include <stdio.h>
#define lua_stdin_is_tty() _isatty(_fileno(stdin))
#else
#define lua_stdin_is_tty() 1 /* assume stdin is a tty */
#endif
#define LUA_COMPAT_UNPACK
/*
@@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'.
** You can replace it with 'package.searchers'.
*/
#define LUA_COMPAT_LOADERS
/*
@@ macro 'lua_cpcall' emulates deprecated function lua_cpcall.
** You can call your C function directly (with light C functions).
*/
#define lua_cpcall(L,f,u) \
(lua_pushcfunction(L, (f)), \
lua_pushlightuserdata(L,(u)), \
lua_pcall(L,1,0,0))
/*
@@ LUA_PROMPT is the default prompt used by stand-alone Lua.
@@ LUA_PROMPT2 is the default continuation prompt used by stand-alone Lua.
** CHANGE them if you want different prompts. (You can also change the
** prompts dynamically, assigning to globals _PROMPT/_PROMPT2.)
@@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library.
** You can rewrite 'log10(x)' as 'log(x, 10)'.
*/
#define LUA_PROMPT "> "
#define LUA_PROMPT2 ">> "
#define LUA_COMPAT_LOG10
/*
@@ LUA_PROGNAME is the default name for the stand-alone Lua program.
** CHANGE it if your stand-alone interpreter has a different name and
** your system is not able to detect that name automatically.
@@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base
** library. You can rewrite 'loadstring(s)' as 'load(s)'.
*/
#define LUA_PROGNAME "lua"
#define LUA_COMPAT_LOADSTRING
/*
@@ LUA_MAXINPUT is the maximum length for an input line in the
@* stand-alone interpreter.
** CHANGE it if you need longer lines.
@@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library.
*/
#define LUA_MAXINPUT 512
#define LUA_COMPAT_MAXN
/*
@@ lua_readline defines how to show a prompt and then read a line from
@* the standard input.
@@ lua_saveline defines how to "save" a read line in a "history".
@@ lua_freeline defines how to free a line read by lua_readline.
** CHANGE them if you want to improve this functionality (e.g., by using
** GNU readline and history facilities).
@@ The following macros supply trivial compatibility for some
** changes in the API. The macros themselves document how to
** change your code to avoid using them.
*/
#if defined(LUA_USE_READLINE)
#include <stdio.h>
#include <readline/readline.h>
#include <readline/history.h>
#define lua_readline(L,b,p) ((void)L, ((b)=readline(p)) != NULL)
#define lua_saveline(L,idx) \
if (lua_strlen(L,idx) > 0) /* non-empty line? */ \
add_history(lua_tostring(L, idx)); /* add it to history */
#define lua_freeline(L,b) ((void)L, free(b))
#else
#define lua_readline(L,b,p) \
((void)L, fputs(p, stdout), fflush(stdout), /* show prompt */ \
fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */
#define lua_saveline(L,idx) { (void)L; (void)idx; }
#define lua_freeline(L,b) { (void)L; (void)b; }
#endif
#define lua_strlen(L,i) lua_rawlen(L, (i))
#endif
#define lua_objlen(L,i) lua_rawlen(L, (i))
#define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ)
#define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT)
/*
@@ LUA_COMPAT_MODULE controls compatibility with previous
** module functions 'module' (Lua) and 'luaL_register' (C).
*/
#define LUA_COMPAT_MODULE
#endif /* } */
/* }================================================================== */
/*
@@ LUAI_GCPAUSE defines the default pause between garbage-collector cycles
@* as a percentage.
** CHANGE it if you want the GC to run faster or slower (higher values
** mean larger pauses which mean slower collection.) You can also change
** this value dynamically.
*/
#define LUAI_GCPAUSE 200 /* 200% (wait memory to double before next GC) */
/*
@@ LUAI_GCMUL defines the default speed of garbage collection relative to
@* memory allocation as a percentage.
** CHANGE it if you want to change the granularity of the garbage
** collection. (Higher values mean coarser collections. 0 represents
** infinity, where each step performs a full collection.) You can also
** change this value dynamically.
*/
#define LUAI_GCMUL 200 /* GC runs 'twice the speed' of memory allocation */
/*
@@ LUA_COMPAT_GETN controls compatibility with old getn behavior.
** CHANGE it (define it) if you want exact compatibility with the
** behavior of setn/getn in Lua 5.0.
*/
#undef LUA_COMPAT_GETN
/*
@@ LUA_COMPAT_LOADLIB controls compatibility about global loadlib.
** CHANGE it to undefined as soon as you do not need a global 'loadlib'
** function (the function is still available as 'package.loadlib').
*/
#undef LUA_COMPAT_LOADLIB
/*
@@ LUA_COMPAT_VARARG controls compatibility with old vararg feature.
** CHANGE it to undefined as soon as your programs use only '...' to
** access vararg parameters (instead of the old 'arg' table).
*/
#define LUA_COMPAT_VARARG
/*
@@ LUA_COMPAT_MOD controls compatibility with old math.mod function.
** CHANGE it to undefined as soon as your programs use 'math.fmod' or
** the new '%' operator instead of 'math.mod'.
*/
#define LUA_COMPAT_MOD
/*
@@ LUA_COMPAT_LSTR controls compatibility with old long string nesting
@* facility.
** CHANGE it to 2 if you want the old behaviour, or undefine it to turn
** off the advisory error when nesting [[...]].
*/
#define LUA_COMPAT_LSTR 1
/*
@@ LUA_COMPAT_GFIND controls compatibility with old 'string.gfind' name.
** CHANGE it to undefined as soon as you rename 'string.gfind' to
** 'string.gmatch'.
*/
#define LUA_COMPAT_GFIND
/*
@@ LUA_COMPAT_OPENLIB controls compatibility with old 'luaL_openlib'
@* behavior.
** CHANGE it to undefined as soon as you replace to 'luaL_register'
** your uses of 'luaL_openlib'
*/
#define LUA_COMPAT_OPENLIB
/*
@@ luai_apicheck is the assert macro used by the Lua-C API.
** CHANGE luai_apicheck if you want Lua to perform some checks in the
** parameters it gets from API calls. This may slow down the interpreter
** a bit, but may be quite useful when debugging C code that interfaces
** with Lua. A useful redefinition is to use assert.h.
*/
#if defined(LUA_USE_APICHECK)
#include <assert.h>
#define luai_apicheck(L,o) { (void)L; assert(o); }
#else
#define luai_apicheck(L,o) { (void)L; }
#endif
/*
@@ LUAI_BITSINT defines the number of bits in an int.
@@ -388,107 +308,62 @@
** your machine. Probably you do not need to change this.
*/
/* avoid overflows in comparison */
#if INT_MAX-20 < 32760
#if INT_MAX-20 < 32760 /* { */
#define LUAI_BITSINT 16
#elif INT_MAX > 2147483640L
#elif INT_MAX > 2147483640L /* }{ */
/* int has at least 32 bits */
#define LUAI_BITSINT 32
#else
#else /* }{ */
#error "you must define LUA_BITSINT with number of bits in an integer"
#endif
#endif /* } */
/*
@@ LUAI_UINT32 is an unsigned integer with at least 32 bits.
@@ LUAI_INT32 is an signed integer with at least 32 bits.
@@ LUA_INT32 is an signed integer with exactly 32 bits.
@@ LUAI_UMEM is an unsigned integer big enough to count the total
@* memory used by Lua.
@@ LUAI_MEM is a signed integer big enough to count the total memory
@* used by Lua.
** CHANGE here if for some weird reason the default definitions are not
** good enough for your machine. (The definitions in the 'else'
** part always works, but may waste space on machines with 64-bit
** longs.) Probably you do not need to change this.
** good enough for your machine. Probably you do not need to change
** this.
*/
#if LUAI_BITSINT >= 32
#define LUAI_UINT32 unsigned int
#define LUAI_INT32 int
#define LUAI_MAXINT32 INT_MAX
#if LUAI_BITSINT >= 32 /* { */
#define LUA_INT32 int
#define LUAI_UMEM size_t
#define LUAI_MEM ptrdiff_t
#else
#else /* }{ */
/* 16-bit ints */
#define LUAI_UINT32 unsigned long
#define LUAI_INT32 long
#define LUAI_MAXINT32 LONG_MAX
#define LUA_INT32 long
#define LUAI_UMEM unsigned long
#define LUAI_MEM long
#endif /* } */
/*
@@ LUAI_MAXSTACK limits the size of the Lua stack.
** CHANGE it if you need a different limit. This limit is arbitrary;
** its only purpose is to stop Lua to consume unlimited stack
** space (and to reserve some numbers for pseudo-indices).
*/
#if LUAI_BITSINT >= 32
#define LUAI_MAXSTACK 1000000
#else
#define LUAI_MAXSTACK 15000
#endif
/*
@@ LUAI_MAXCALLS limits the number of nested calls.
** CHANGE it if you need really deep recursive calls. This limit is
** arbitrary; its only purpose is to stop infinite recursion before
** exhausting memory.
*/
#define LUAI_MAXCALLS 20000
/* reserve some space for error handling */
#define LUAI_FIRSTPSEUDOIDX (-LUAI_MAXSTACK - 1000)
/*
@@ LUAI_MAXCSTACK limits the number of Lua stack slots that a C function
@* can use.
** CHANGE it if you need lots of (Lua) stack space for your C
** functions. This limit is arbitrary; its only purpose is to stop C
** functions to consume unlimited stack space. (must be smaller than
** -LUA_REGISTRYINDEX)
*/
#define LUAI_MAXCSTACK 8000
/*
** {==================================================================
** CHANGE (to smaller values) the following definitions if your system
** has a small C stack. (Or you may want to change them to larger
** values if your system has a large C stack and these limits are
** too rigid for you.) Some of these constants control the size of
** stack-allocated arrays used by the compiler or the interpreter, while
** others limit the maximum number of recursive calls that the compiler
** or the interpreter can perform. Values too large may cause a C stack
** overflow for some forms of deep constructs.
** ===================================================================
*/
/*
@@ LUAI_MAXCCALLS is the maximum depth for nested C calls (short) and
@* syntactical nested non-terminals in a program.
*/
#define LUAI_MAXCCALLS 200
/*
@@ LUAI_MAXVARS is the maximum number of local variables per function
@* (must be smaller than 250).
*/
#define LUAI_MAXVARS 200
/*
@@ LUAI_MAXUPVALUES is the maximum number of upvalues per function
@* (must be smaller than 250).
*/
#define LUAI_MAXUPVALUES 60
/*
@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
** CHANGE it if it uses too much C-stack space.
*/
#define LUAL_BUFFERSIZE BUFSIZ
/* }================================================================== */
@@ -516,237 +391,128 @@
@@ LUA_NUMBER_FMT is the format for writing numbers.
@@ lua_number2str converts a number to a string.
@@ LUAI_MAXNUMBER2STR is maximum size of previous conversion.
@@ lua_str2number converts a string to a number.
*/
#define LUA_NUMBER_SCAN "%lf"
#define LUA_NUMBER_FMT "%.14g"
#define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
#define LUAI_MAXNUMBER2STR 32 /* 16 digits, sign, point, and \0 */
/*
@@ lua_str2number converts a decimal numeric string to a number.
@@ lua_strx2number converts an hexadecimal numeric string to a number.
** In C99, 'strtod' do both conversions. C89, however, has no function
** to convert floating hexadecimal strings to numbers. For these
** systems, you can leave 'lua_strx2number' undefined and Lua will
** provide its own implementation.
*/
#define lua_str2number(s,p) strtod((s), (p))
#if defined(LUA_USE_STRTODHEX)
#define lua_strx2number(s,p) strtod((s), (p))
#endif
/*
@@ The luai_num* macros define the primitive operations over numbers.
*/
#if defined(LUA_CORE)
//#include <math.h>
#define luai_numadd(a,b) ((a)+(b))
#define luai_numsub(a,b) ((a)-(b))
#define luai_nummul(a,b) ((a)*(b))
#define luai_numdiv(a,b) ((a)/(b))
#define luai_nummod(a,b) ((a) - floor((a)/(b))*(b))
#define luai_numpow(a,b) (pow(a,b))
#define luai_numunm(a) (-(a))
#define luai_numeq(a,b) ((a)==(b))
#define luai_numlt(a,b) ((a)<(b))
#define luai_numle(a,b) ((a)<=(b))
#define luai_numisnan(a) (!luai_numeq((a), (a)))
/* the following operations need the math library */
#if defined(lobject_c) || defined(lvm_c)
#include <math.h>
#define luai_nummod(L,a,b) ((a) - floor((a)/(b))*(b))
#define luai_numpow(L,a,b) (pow(a,b))
#endif
/* these are quite standard operations */
#if defined(LUA_CORE)
#define luai_numadd(L,a,b) ((a)+(b))
#define luai_numsub(L,a,b) ((a)-(b))
#define luai_nummul(L,a,b) ((a)*(b))
#define luai_numdiv(L,a,b) ((a)/(b))
#define luai_numunm(L,a) (-(a))
#define luai_numeq(a,b) ((a)==(b))
#define luai_numlt(L,a,b) ((a)<(b))
#define luai_numle(L,a,b) ((a)<=(b))
#define luai_numisnan(L,a) (!luai_numeq((a), (a)))
#endif
/*
@@ lua_number2int is a macro to convert lua_Number to int.
@@ lua_number2integer is a macro to convert lua_Number to lua_Integer.
** CHANGE them if you know a faster way to convert a lua_Number to
** int (with any rounding method and without throwing errors) in your
** system. In Pentium machines, a naive typecast from double to int
** in C is extremely slow, so any alternative is worth trying.
@@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger.
** CHANGE that if ptrdiff_t is not adequate on your machine. (On most
** machines, ptrdiff_t gives a good choice between int or long.)
*/
#define LUA_INTEGER ptrdiff_t
/* On a Pentium, resort to a trick */
#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__) && \
(defined(__i386) || defined (_M_IX86) || defined(__i386__))
/*
@@ LUA_UNSIGNED is the integral type used by lua_pushunsigned/lua_tounsigned.
** It must have at least 32 bits.
*/
#define LUA_UNSIGNED unsigned LUA_INT32
/* On a Microsoft compiler, use assembler */
#if defined(_MSC_VER)
#define lua_number2int(i,d) __asm fld d __asm fistp i
#define lua_number2integer(i,n) lua_number2int(i, n)
#if defined(LUA_CORE) /* { */
/* the next trick should work on any Pentium, but sometimes clashes
#if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */
/* On a Microsoft compiler on a Pentium, use assembler to avoid clashes
with a DirectX idiosyncrasy */
#else
#if defined(LUA_WIN) && defined(_MSC_VER) && defined(_M_IX86) /* { */
union luai_Cast { double l_d; long l_l; };
#define lua_number2int(i,d) \
{ volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; }
#define lua_number2integer(i,n) lua_number2int(i, n)
#define MS_ASMTRICK
#else /* }{ */
/* the next definition uses a trick that should work on any machine
using IEEE754 with a 32-bit integer type */
#define LUA_IEEE754TRICK
/*
@@ LUA_IEEEENDIAN is the endianness of doubles in your machine
** (0 for little endian, 1 for big endian); if not defined, Lua will
** check it dynamically.
*/
/* check for known architectures */
#if defined(__i386__) || defined(__i386) || defined(__X86__) || \
defined (__x86_64)
#define LUA_IEEEENDIAN 0
#elif defined(__POWERPC__) || defined(__ppc__)
#define LUA_IEEEENDIAN 1
#endif
#endif /* } */
/* this option always works, but may be slow */
#else
#define lua_number2int(i,d) ((i)=(int)(d))
#define lua_number2integer(i,d) ((i)=(lua_Integer)(d))
#endif /* } */
#endif
#endif /* } */
/* }================================================================== */
/*
@@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment.
** CHANGE it if your system requires alignments larger than double. (For
** instance, if your system supports long doubles and they must be
** aligned in 16-byte boundaries, then you should add long double in the
** union.) Probably you do not need to change this.
@@ LUA_NANTRICK_LE/LUA_NANTRICK_BE controls the use of a trick to
** pack all types into a single double value, using NaN values to
** represent non-number values. The trick only works on 32-bit machines
** (ints and pointers are 32-bit values) with numbers represented as
** IEEE 754-2008 doubles with conventional endianess (12345678 or
** 87654321), in CPUs that do not produce signaling NaN values (all NaNs
** are quiet).
*/
#define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; }
#if defined(LUA_CORE) && \
defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) /* { */
/* little-endian architectures that satisfy those conditions */
#if defined(__i386__) || defined(__i386) || defined(__X86__) || \
defined(_M_IX86)
/*
@@ LUAI_THROW/LUAI_TRY define how Lua does exception handling.
** CHANGE them if you prefer to use longjmp/setjmp even with C++
** or if want/don't to use _longjmp/_setjmp instead of regular
** longjmp/setjmp. By default, Lua handles errors with exceptions when
** compiling as C++ code, with _longjmp/_setjmp when asked to use them,
** and with longjmp/setjmp otherwise.
*/
#if defined(__cplusplus)
/* C++ exceptions */
#define LUAI_THROW(L,c) throw(c)
#define LUAI_TRY(L,c,a) try { a } catch(...) \
{ if ((c)->status == 0) (c)->status = -1; }
#define luai_jmpbuf int /* dummy variable */
#elif defined(LUA_USE_ULONGJMP)
/* in Unix, try _longjmp/_setjmp (more efficient) */
#define LUAI_THROW(L,c) _longjmp((c)->b, 1)
#define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a }
#define luai_jmpbuf jmp_buf
#else
/* default handling with long jumps */
#define LUAI_THROW(L,c) longjmp((c)->b, 1)
#define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a }
#define luai_jmpbuf jmp_buf
#define LUA_NANTRICK_LE
#endif
#endif /* } */
/*
@@ LUA_MAXCAPTURES is the maximum number of captures that a pattern
@* can do during pattern-matching.
** CHANGE it if you need more captures. This limit is arbitrary.
*/
#define LUA_MAXCAPTURES 32
/*
@@ lua_tmpnam is the function that the OS library uses to create a
@* temporary name.
@@ LUA_TMPNAMBUFSIZE is the maximum size of a name created by lua_tmpnam.
** CHANGE them if you have an alternative to tmpnam (which is considered
** insecure) or if you want the original tmpnam anyway. By default, Lua
** uses tmpnam except when POSIX is available, where it uses mkstemp.
*/
#if defined(loslib_c) || defined(luaall_c)
#if defined(LUA_USE_MKSTEMP)
#include <unistd.h>
#define LUA_TMPNAMBUFSIZE 32
#define lua_tmpnam(b,e) { \
strcpy(b, "/tmp/lua_XXXXXX"); \
e = mkstemp(b); \
if (e != -1) close(e); \
e = (e == -1); }
#else
#define LUA_TMPNAMBUFSIZE L_tmpnam
#define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); }
#endif
#endif
/*
@@ lua_popen spawns a new process connected to the current one through
@* the file streams.
** CHANGE it if you have a way to implement it in your system.
*/
#if defined(LUA_USE_POPEN)
#define lua_popen(L,c,m) ((void)L, fflush(NULL), popen(c,m))
#define lua_pclose(L,file) ((void)L, (pclose(file) != -1))
#elif defined(LUA_WIN)
#define lua_popen(L,c,m) ((void)L, _popen(c,m))
#define lua_pclose(L,file) ((void)L, (_pclose(file) != -1))
#else
#define lua_popen(L,c,m) ((void)((void)c, m), \
luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0)
#define lua_pclose(L,file) ((void)((void)L, file), 0)
#endif
/*
@@ LUA_DL_* define which dynamic-library system Lua should use.
** CHANGE here if Lua has problems choosing the appropriate
** dynamic-library system for your platform (either Windows' DLL, Mac's
** dyld, or Unix's dlopen). If your system is some kind of Unix, there
** is a good chance that it has dlopen, so LUA_DL_DLOPEN will work for
** it. To use dlopen you also need to adapt the src/Makefile (probably
** adding -ldl to the linker options), so Lua does not select it
** automatically. (When you change the makefile to add -ldl, you must
** also add -DLUA_USE_DLOPEN.)
** If you do not want any kind of dynamic library, undefine all these
** options.
** By default, _WIN32 gets LUA_DL_DLL and MAC OS X gets LUA_DL_DYLD.
*/
#if defined(LUA_USE_DLOPEN)
#define LUA_DL_DLOPEN
#endif
#if defined(LUA_WIN)
#define LUA_DL_DLL
#endif
/*
@@ LUAI_EXTRASPACE allows you to add user-specific data in a lua_State
@* (the data goes just *before* the lua_State pointer).
** CHANGE (define) this if you really need that. This value must be
** a multiple of the maximum alignment required for your machine.
*/
#define LUAI_EXTRASPACE 0
/*
@@ luai_userstate* allow user-specific actions on threads.
** CHANGE them if you defined LUAI_EXTRASPACE and need to do something
** extra when a thread is created/deleted/resumed/yielded.
*/
#define luai_userstateopen(L) ((void)L)
#define luai_userstateclose(L) ((void)L)
#define luai_userstatethread(L,L1) ((void)L)
#define luai_userstatefree(L) ((void)L)
#define luai_userstateresume(L,n) ((void)L)
#define luai_userstateyield(L,n) ((void)L)
/*
@@ LUA_INTFRMLEN is the length modifier for integer conversions
@* in 'string.format'.
@@ LUA_INTFRM_T is the integer type correspoding to the previous length
@* modifier.
** CHANGE them if your system supports long long or does not support long.
*/
#if defined(LUA_USELONGLONG)
#define LUA_INTFRMLEN "ll"
#define LUA_INTFRM_T long long
#else
#define LUA_INTFRMLEN "l"
#define LUA_INTFRM_T long
#endif