1 /*
2 ** $Id: luaconf.h,v 1.82.1.7 2008/02/11 16:25:08 roberto Exp $
3 ** Configuration file for Lua
4 ** See Copyright Notice in lua.h
5 */
6
7
8 #ifndef lconfig_h
9 #define lconfig_h
10
11 #include <limits.h>
12 #include <stddef.h>
13
14
15 /*
16 ** ==================================================================
17 ** Search for "@@" to find all configurable definitions.
18 ** ===================================================================
19 */
20
21
22 /*
23 @@ LUA_ANSI controls the use of non-ansi features.
24 ** CHANGE it (define it) if you want Lua to avoid the use of any
25 ** non-ansi feature or library.
26 */
27 #if defined(__STRICT_ANSI__)
28 #define LUA_ANSI
29 #endif
30
31
32 #if !defined(LUA_ANSI) && defined(_WIN32)
33 #define LUA_WIN
34 #endif
35
36 #if defined(LUA_USE_LINUX)
37 #define LUA_USE_POSIX
38 #define LUA_USE_DLOPEN /* needs an extra library: -ldl */
39 #define LUA_USE_READLINE /* needs some extra libraries */
40 #endif
41
42 #if defined(LUA_USE_MACOSX)
43 #define LUA_USE_POSIX
44 #define LUA_DL_DYLD /* does not need extra library */
45 #endif
46
47
48
49 /*
50 @@ LUA_USE_POSIX includes all functionallity listed as X/Open System
51 @* Interfaces Extension (XSI).
52 ** CHANGE it (define it) if your system is XSI compatible.
53 */
54 #if defined(LUA_USE_POSIX)
55 #define LUA_USE_MKSTEMP
56 #define LUA_USE_ISATTY
57 #define LUA_USE_POPEN
58 #define LUA_USE_ULONGJMP
59 #endif
60
61
62 /*
63 @@ LUA_PATH and LUA_CPATH are the names of the environment variables that
64 @* Lua check to set its paths.
65 @@ LUA_INIT is the name of the environment variable that Lua
66 @* checks for initialization code.
67 ** CHANGE them if you want different names.
68 */
69 #define LUA_PATH "LUA_PATH"
70 #define LUA_CPATH "LUA_CPATH"
71 #define LUA_INIT "LUA_INIT"
72
73
74 /*
75 @@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
76 @* Lua libraries.
77 @@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
78 @* C libraries.
79 ** CHANGE them if your machine has a non-conventional directory
80 ** hierarchy or if you want to install your libraries in
81 ** non-conventional directories.
82 */
83 #if defined(_WIN32)
84 /*
85 ** In Windows, any exclamation mark ('!') in the path is replaced by the
86 ** path of the directory of the executable file of the current process.
87 */
88 #define LUA_LDIR "!\\lua\\"
89 #define LUA_CDIR "!\\"
90 #define LUA_PATH_DEFAULT \
91 ".\\?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \
92 LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua"
93 #define LUA_CPATH_DEFAULT \
94 ".\\?.dll;" LUA_CDIR"?.dll;" LUA_CDIR"loadall.dll"
95
96 #elif defined(HDK_VERSION)
97 /*
98 ** reyalp:
99 ** CHDK paths. C path does not currently apply, but might
100 ** want to support modules eventually
101 */
102 #define LUA_ROOT "A/CHDK/"
103 #define LUA_LDIR LUA_ROOT "LUALIB/"
104 //#define LUA_CDIR LUA_ROOT "MODULES/"
105 #define LUA_PATH_DEFAULT \
106 LUA_ROOT "SCRIPTS/?.lua;" LUA_LDIR"?.lua;"
107 #define LUA_CPATH_DEFAULT ""
108
109 #else
110 #define LUA_ROOT "/usr/local/"
111 #define LUA_LDIR LUA_ROOT "share/lua/5.1/"
112 #define LUA_CDIR LUA_ROOT "lib/lua/5.1/"
113 #define LUA_PATH_DEFAULT \
114 "./?.lua;" LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \
115 LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua"
116 #define LUA_CPATH_DEFAULT \
117 "./?.so;" LUA_CDIR"?.so;" LUA_CDIR"loadall.so"
118 #endif
119
120
121 /*
122 @@ LUA_DIRSEP is the directory separator (for submodules).
123 ** CHANGE it if your machine does not use "/" as the directory separator
124 ** and is not Windows. (On Windows Lua automatically uses "\".)
125 */
126 #if defined(_WIN32)
127 #define LUA_DIRSEP "\\"
128 #else
129 #define LUA_DIRSEP "/"
130 #endif
131
132
133 /*
134 @@ LUA_PATHSEP is the character that separates templates in a path.
135 @@ LUA_PATH_MARK is the string that marks the substitution points in a
136 @* template.
137 @@ LUA_EXECDIR in a Windows path is replaced by the executable's
138 @* directory.
139 @@ LUA_IGMARK is a mark to ignore all before it when bulding the
140 @* luaopen_ function name.
141 ** CHANGE them if for some reason your system cannot use those
142 ** characters. (E.g., if one of those characters is a common character
143 ** in file/directory names.) Probably you do not need to change them.
144 */
145 #define LUA_PATHSEP ";"
146 #define LUA_PATH_MARK "?"
147 #define LUA_EXECDIR "!"
148 #define LUA_IGMARK "-"
149
150
151 /*
152 @@ LUA_INTEGER is the integral type used by lua_pushinteger/lua_tointeger.
153 ** CHANGE that if ptrdiff_t is not adequate on your machine. (On most
154 ** machines, ptrdiff_t gives a good choice between int or long.)
155 */
156 #define LUA_INTEGER int
157
158 /*
159 @@ LUA_API is a mark for all core API functions.
160 @@ LUALIB_API is a mark for all standard library functions.
161 ** CHANGE them if you need to define those functions in some special way.
162 ** For instance, if you want to create one Windows DLL with the core and
163 ** the libraries, you may want to use the following definition (define
164 ** LUA_BUILD_AS_DLL to get it).
165 */
166 #if defined(LUA_BUILD_AS_DLL)
167
168 #if defined(LUA_CORE) || defined(LUA_LIB)
169 #define LUA_API __declspec(dllexport)
170 #else
171 #define LUA_API __declspec(dllimport)
172 #endif
173
174 #else
175
176 #if defined(HDK_VERSION)
177 // Set internal functions as 'short_call' to make CHDK module smaller
178 #define LUA_API __attribute__((short_call)) extern
179 #else
180 #define LUA_API extern
181 #endif
182
183 #endif
184
185 /* more often than not the libs go together with the core */
186 #define LUALIB_API LUA_API
187
188
189 /*
190 @@ LUAI_FUNC is a mark for all extern functions that are not to be
191 @* exported to outside modules.
192 @@ LUAI_DATA is a mark for all extern (const) variables that are not to
193 @* be exported to outside modules.
194 ** CHANGE them if you need to mark them in some special way. Elf/gcc
195 ** (versions 3.2 and later) mark them as "hidden" to optimize access
196 ** when Lua is compiled as a shared library.
197 */
198 #if defined(luaall_c)
199 #define LUAI_FUNC static
200 #define LUAI_DATA /* empty */
201
202 #elif defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
203 defined(__ELF__)
204 /* reyalp: hidden is irrelevant if not dynamically linked*/
205 #if defined(HDK_VERSION)
206 // Set internal functions as 'short_call' to make CHDK module smaller
207 #define LUAI_FUNC __attribute__((short_call)) extern
208 #define LUAI_DATA extern
209 #else
210 #define LUAI_FUNC __attribute__((visibility("hidden"))) extern
211 #define LUAI_DATA LUAI_FUNC
212 #endif
213
214 #else
215 #define LUAI_FUNC extern
216 #define LUAI_DATA extern
217 #endif
218
219
220
221 /*
222 @@ LUA_QL describes how error messages quote program elements.
223 ** CHANGE it if you want a different appearance.
224 */
225 #define LUA_QL(x) "'" x "'"
226 #define LUA_QS LUA_QL("%s")
227
228
229 /*
230 @@ LUA_IDSIZE gives the maximum size for the description of the source
231 @* of a function in debug information.
232 ** CHANGE it if you want a different size.
233 */
234 #define LUA_IDSIZE 60
235
236
237 /*
238 ** {==================================================================
239 ** Stand-alone configuration
240 ** ===================================================================
241 */
242
243 #if defined(lua_c) || defined(luaall_c)
244
245 /*
246 @@ lua_stdin_is_tty detects whether the standard input is a 'tty' (that
247 @* is, whether we're running lua interactively).
248 ** CHANGE it if you have a better definition for non-POSIX/non-Windows
249 ** systems.
250 */
251 #if defined(LUA_USE_ISATTY)
252 #include <unistd.h>
253 #define lua_stdin_is_tty() isatty(0)
254 #elif defined(LUA_WIN)
255 #include <io.h>
256 #include <stdio.h>
257 #define lua_stdin_is_tty() _isatty(_fileno(stdin))
258 #else
259 #define lua_stdin_is_tty() 1 /* assume stdin is a tty */
260 #endif
261
262
263 /*
264 @@ LUA_PROMPT is the default prompt used by stand-alone Lua.
265 @@ LUA_PROMPT2 is the default continuation prompt used by stand-alone Lua.
266 ** CHANGE them if you want different prompts. (You can also change the
267 ** prompts dynamically, assigning to globals _PROMPT/_PROMPT2.)
268 */
269 #define LUA_PROMPT "> "
270 #define LUA_PROMPT2 ">> "
271
272
273 /*
274 @@ LUA_PROGNAME is the default name for the stand-alone Lua program.
275 ** CHANGE it if your stand-alone interpreter has a different name and
276 ** your system is not able to detect that name automatically.
277 */
278 #define LUA_PROGNAME "lua"
279
280
281 /*
282 @@ LUA_MAXINPUT is the maximum length for an input line in the
283 @* stand-alone interpreter.
284 ** CHANGE it if you need longer lines.
285 */
286 #define LUA_MAXINPUT 512
287
288
289 /*
290 @@ lua_readline defines how to show a prompt and then read a line from
291 @* the standard input.
292 @@ lua_saveline defines how to "save" a read line in a "history".
293 @@ lua_freeline defines how to free a line read by lua_readline.
294 ** CHANGE them if you want to improve this functionality (e.g., by using
295 ** GNU readline and history facilities).
296 */
297 #if defined(LUA_USE_READLINE)
298 #include <stdio.h>
299 #include <readline/readline.h>
300 #include <readline/history.h>
301 #define lua_readline(L,b,p) ((void)L, ((b)=readline(p)) != NULL)
302 #define lua_saveline(L,idx) \
303 if (lua_strlen(L,idx) > 0) /* non-empty line? */ \
304 add_history(lua_tostring(L, idx)); /* add it to history */
305 #define lua_freeline(L,b) ((void)L, free(b))
306 #else
307 #define lua_readline(L,b,p) \
308 ((void)L, fputs(p, stdout), fflush(stdout), /* show prompt */ \
309 fgets(b, LUA_MAXINPUT, stdin) != NULL) /* get line */
310 #define lua_saveline(L,idx) { (void)L; (void)idx; }
311 #define lua_freeline(L,b) { (void)L; (void)b; }
312 #endif
313
314 #endif
315
316 /* }================================================================== */
317
318
319 /*
320 @@ LUAI_GCPAUSE defines the default pause between garbage-collector cycles
321 @* as a percentage.
322 ** CHANGE it if you want the GC to run faster or slower (higher values
323 ** mean larger pauses which mean slower collection.) You can also change
324 ** this value dynamically.
325 */
326 #define LUAI_GCPAUSE 200 /* 200% (wait memory to double before next GC) */
327
328
329 /*
330 @@ LUAI_GCMUL defines the default speed of garbage collection relative to
331 @* memory allocation as a percentage.
332 ** CHANGE it if you want to change the granularity of the garbage
333 ** collection. (Higher values mean coarser collections. 0 represents
334 ** infinity, where each step performs a full collection.) You can also
335 ** change this value dynamically.
336 */
337 #define LUAI_GCMUL 200 /* GC runs 'twice the speed' of memory allocation */
338
339
340
341 /*
342 @@ LUA_COMPAT_GETN controls compatibility with old getn behavior.
343 ** CHANGE it (define it) if you want exact compatibility with the
344 ** behavior of setn/getn in Lua 5.0.
345 */
346 #undef LUA_COMPAT_GETN
347
348 /*
349 @@ LUA_COMPAT_LOADLIB controls compatibility about global loadlib.
350 ** CHANGE it to undefined as soon as you do not need a global 'loadlib'
351 ** function (the function is still available as 'package.loadlib').
352 */
353 #undef LUA_COMPAT_LOADLIB
354
355 /*
356 @@ LUA_COMPAT_VARARG controls compatibility with old vararg feature.
357 ** CHANGE it to undefined as soon as your programs use only '...' to
358 ** access vararg parameters (instead of the old 'arg' table).
359 */
360 #undef LUA_COMPAT_VARARG
361
362 /*
363 @@ LUA_COMPAT_MOD controls compatibility with old math.mod function.
364 ** CHANGE it to undefined as soon as your programs use 'math.fmod' or
365 ** the new '%' operator instead of 'math.mod'.
366 */
367 #undef LUA_COMPAT_MOD
368
369 /*
370 @@ LUA_COMPAT_LSTR controls compatibility with old long string nesting
371 @* facility.
372 ** CHANGE it to 2 if you want the old behaviour, or undefine it to turn
373 ** off the advisory error when nesting [[...]].
374 */
375 #undef LUA_COMPAT_LSTR
376
377 /*
378 @@ LUA_COMPAT_GFIND controls compatibility with old 'string.gfind' name.
379 ** CHANGE it to undefined as soon as you rename 'string.gfind' to
380 ** 'string.gmatch'.
381 */
382 #undef LUA_COMPAT_GFIND
383
384 /*
385 @@ LUA_COMPAT_OPENLIB controls compatibility with old 'luaL_openlib'
386 @* behavior.
387 ** CHANGE it to undefined as soon as you replace to 'luaL_register'
388 ** your uses of 'luaL_openlib'
389 */
390 #undef LUA_COMPAT_OPENLIB
391
392
393
394 /*
395 @@ luai_apicheck is the assert macro used by the Lua-C API.
396 ** CHANGE luai_apicheck if you want Lua to perform some checks in the
397 ** parameters it gets from API calls. This may slow down the interpreter
398 ** a bit, but may be quite useful when debugging C code that interfaces
399 ** with Lua. A useful redefinition is to use assert.h.
400 */
401 #if defined(LUA_USE_APICHECK)
402 #include <assert.h>
403 #define luai_apicheck(L,o) { (void)L; assert(o); }
404 #else
405 #define luai_apicheck(L,o) { (void)L; }
406 #endif
407
408
409 /*
410 @@ LUAI_BITSINT defines the number of bits in an int.
411 ** CHANGE here if Lua cannot automatically detect the number of bits of
412 ** your machine. Probably you do not need to change this.
413 */
414 /* avoid overflows in comparison */
415 #if INT_MAX-20 < 32760
416 #define LUAI_BITSINT 16
417 #elif INT_MAX > 2147483640L
418 /* int has at least 32 bits */
419 #define LUAI_BITSINT 32
420 #else
421 #error "you must define LUA_BITSINT with number of bits in an integer"
422 #endif
423
424
425 /*
426 @@ LUAI_UINT32 is an unsigned integer with at least 32 bits.
427 @@ LUAI_INT32 is an signed integer with at least 32 bits.
428 @@ LUAI_UMEM is an unsigned integer big enough to count the total
429 @* memory used by Lua.
430 @@ LUAI_MEM is a signed integer big enough to count the total memory
431 @* used by Lua.
432 ** CHANGE here if for some weird reason the default definitions are not
433 ** good enough for your machine. (The definitions in the 'else'
434 ** part always works, but may waste space on machines with 64-bit
435 ** longs.) Probably you do not need to change this.
436 */
437 #if LUAI_BITSINT >= 32
438 #define LUAI_UINT32 unsigned int
439 #define LUAI_INT32 int
440 #define LUAI_MAXINT32 INT_MAX
441 #define LUAI_UMEM size_t
442 #define LUAI_MEM ptrdiff_t
443 #else
444 /* 16-bit ints */
445 #define LUAI_UINT32 unsigned long
446 #define LUAI_INT32 long
447 #define LUAI_MAXINT32 LONG_MAX
448 #define LUAI_UMEM unsigned long
449 #define LUAI_MEM long
450 #endif
451
452
453 /*
454 @@ LUAI_MAXCALLS limits the number of nested calls.
455 ** CHANGE it if you need really deep recursive calls. This limit is
456 ** arbitrary; its only purpose is to stop infinite recursion before
457 ** exhausting memory.
458 */
459 #define LUAI_MAXCALLS 20000
460
461
462 /*
463 @@ LUAI_MAXCSTACK limits the number of Lua stack slots that a C function
464 @* can use.
465 ** CHANGE it if you need lots of (Lua) stack space for your C
466 ** functions. This limit is arbitrary; its only purpose is to stop C
467 ** functions to consume unlimited stack space. (must be smaller than
468 ** -LUA_REGISTRYINDEX)
469 */
470 #define LUAI_MAXCSTACK 8000
471
472
473
474 /*
475 ** {==================================================================
476 ** CHANGE (to smaller values) the following definitions if your system
477 ** has a small C stack. (Or you may want to change them to larger
478 ** values if your system has a large C stack and these limits are
479 ** too rigid for you.) Some of these constants control the size of
480 ** stack-allocated arrays used by the compiler or the interpreter, while
481 ** others limit the maximum number of recursive calls that the compiler
482 ** or the interpreter can perform. Values too large may cause a C stack
483 ** overflow for some forms of deep constructs.
484 ** ===================================================================
485 */
486
487
488 /*
489 @@ LUAI_MAXCCALLS is the maximum depth for nested C calls (short) and
490 @* syntactical nested non-terminals in a program.
491 */
492 #define LUAI_MAXCCALLS 200
493
494
495 /*
496 @@ LUAI_MAXVARS is the maximum number of local variables per function
497 @* (must be smaller than 250).
498 */
499 #define LUAI_MAXVARS 200
500
501
502 /*
503 @@ LUAI_MAXUPVALUES is the maximum number of upvalues per function
504 @* (must be smaller than 250).
505 */
506 #define LUAI_MAXUPVALUES 60
507
508
509 /*
510 @@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
511 */
512 #define LUAL_BUFFERSIZE 512 /*BUFSIZ*/
513
514 /* }================================================================== */
515
516
517
518
519 /*
520 ** {==================================================================
521 @@ LUA_NUMBER is the type of numbers in Lua.
522 ** CHANGE the following definitions only if you want to build Lua
523 ** with a number type different from double. You may also need to
524 ** change lua_number2int & lua_number2integer.
525 ** ===================================================================
526 */
527
528 //#define LUA_NUMBER_DOUBLE
529 #define LUA_NUMBER int
530
531 /*
532 @@ LUAI_UACNUMBER is the result of an 'usual argument conversion'
533 @* over a number.
534 */
535 #define LUAI_UACNUMBER int
536
537
538 /*
539 @@ LUA_NUMBER_SCAN is the format for reading numbers.
540 @@ LUA_NUMBER_FMT is the format for writing numbers.
541 @@ lua_number2str converts a number to a string.
542 @@ LUAI_MAXNUMBER2STR is maximum size of previous conversion.
543 @@ lua_str2number converts a string to a number.
544 */
545 #define LUA_NUMBER_SCAN "%d"
546 #define LUA_NUMBER_FMT "%d"
547 #define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n))
548 #define LUAI_MAXNUMBER2STR 15
549 #define lua_str2number(s,p) strtol((s), (p), 10)
550
551 /*
552 @@ The luai_num* macros define the primitive operations over numbers.
553 */
554 #if defined(LUA_CORE)
555 //#include <math.h>
556 #define luai_numadd(a,b) ((a)+(b))
557 #define luai_numsub(a,b) ((a)-(b))
558 #define luai_nummul(a,b) ((a)*(b))
559 // reyalp - added
560 // provide behavior similar to preivous CPUs for digic 6, instead of triggering exception handler
561 #ifdef THUMB_FW
562 #define luai_numdiv(a,b) (chdk_luai_numdiv((a),(b)))
563 #define luai_nummod(a,b) (chdk_luai_nummod((a),(b)))
564 #else
565 #define luai_numdiv(a,b) ((a)/(b))
566 #define luai_nummod(a,b) ((a)%(b))
567 #endif
568
569 #define luai_numpow(a,b) (luai_ipow(a,b))
570 #define luai_numunm(a) (-(a))
571 #define luai_numeq(a,b) ((a)==(b))
572 #define luai_numlt(a,b) ((a)<(b))
573 #define luai_numle(a,b) ((a)<=(b))
574 #define luai_numisnan(a) (!luai_numeq((a), (a)))
575 #endif
576
577 // reyalp - used in lib too
578 #if defined(LUA_CORE) || defined(LUA_LIB)
579 LUA_NUMBER luai_ipow(LUA_NUMBER, LUA_NUMBER);
580 #endif
581
582 /*
583 @@ lua_number2int is a macro to convert lua_Number to int.
584 @@ lua_number2integer is a macro to convert lua_Number to lua_Integer.
585 ** CHANGE them if you know a faster way to convert a lua_Number to
586 ** int (with any rounding method and without throwing errors) in your
587 ** system. In Pentium machines, a naive typecast from double to int
588 ** in C is extremely slow, so any alternative is worth trying.
589 */
590
591 /* On a Pentium, resort to a trick */
592 #if defined(LUA_NUMBER_DOUBLE) && !defined(LUA_ANSI) && !defined(__SSE2__) && \
593 (defined(__i386) || defined (_M_IX86) || defined(__i386__))
594
595 /* On a Microsoft compiler, use assembler */
596 #if defined(_MSC_VER)
597
598 #define lua_number2int(i,d) __asm fld d __asm fistp i
599 #define lua_number2integer(i,n) lua_number2int(i, n)
600
601 /* the next trick should work on any Pentium, but sometimes clashes
602 with a DirectX idiosyncrasy */
603 #else
604
605 union luai_Cast { double l_d; long l_l; };
606 #define lua_number2int(i,d) \
607 { volatile union luai_Cast u; u.l_d = (d) + 6755399441055744.0; (i) = u.l_l; }
608 #define lua_number2integer(i,n) lua_number2int(i, n)
609
610 #endif
611
612
613 /* this option always works, but may be slow */
614 #else
615 #define lua_number2int(i,d) ((i)=(int)(d))
616 #define lua_number2integer(i,d) ((i)=(lua_Integer)(d))
617
618 #endif
619
620 /* }================================================================== */
621
622
623 /*
624 @@ LUAI_USER_ALIGNMENT_T is a type that requires maximum alignment.
625 ** CHANGE it if your system requires alignments larger than double. (For
626 ** instance, if your system supports long doubles and they must be
627 ** aligned in 16-byte boundaries, then you should add long double in the
628 ** union.) Probably you do not need to change this.
629 */
630 #define LUAI_USER_ALIGNMENT_T union { double u; void *s; long l; }
631
632
633 /*
634 @@ LUAI_THROW/LUAI_TRY define how Lua does exception handling.
635 ** CHANGE them if you prefer to use longjmp/setjmp even with C++
636 ** or if want/don't to use _longjmp/_setjmp instead of regular
637 ** longjmp/setjmp. By default, Lua handles errors with exceptions when
638 ** compiling as C++ code, with _longjmp/_setjmp when asked to use them,
639 ** and with longjmp/setjmp otherwise.
640 */
641 #if defined(__cplusplus)
642 /* C++ exceptions */
643 #define LUAI_THROW(L,c) throw(c)
644 #define LUAI_TRY(L,c,a) try { a } catch(...) \
645 { if ((c)->status == 0) (c)->status = -1; }
646 #define luai_jmpbuf int /* dummy variable */
647
648 #elif defined(LUA_USE_ULONGJMP)
649 /* in Unix, try _longjmp/_setjmp (more efficient) */
650 #define LUAI_THROW(L,c) _longjmp((c)->b, 1)
651 #define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a }
652 #define luai_jmpbuf jmp_buf
653
654 #else
655 /* default handling with long jumps */
656 #define LUAI_THROW(L,c) longjmp((c)->b, 1)
657 #define LUAI_TRY(L,c,a) if (setjmp((c)->b) == 0) { a }
658 #define luai_jmpbuf jmp_buf
659
660 #endif
661
662
663 /*
664 @@ LUA_MAXCAPTURES is the maximum number of captures that a pattern
665 @* can do during pattern-matching.
666 ** CHANGE it if you need more captures. This limit is arbitrary.
667 */
668 #define LUA_MAXCAPTURES 32
669
670
671 /*
672 @@ lua_tmpnam is the function that the OS library uses to create a
673 @* temporary name.
674 @@ LUA_TMPNAMBUFSIZE is the maximum size of a name created by lua_tmpnam.
675 ** CHANGE them if you have an alternative to tmpnam (which is considered
676 ** insecure) or if you want the original tmpnam anyway. By default, Lua
677 ** uses tmpnam except when POSIX is available, where it uses mkstemp.
678 */
679 #if defined(loslib_c) || defined(luaall_c)
680
681 #if defined(LUA_USE_MKSTEMP)
682 #include <unistd.h>
683 #define LUA_TMPNAMBUFSIZE 32
684 #define lua_tmpnam(b,e) { \
685 strcpy(b, "/tmp/lua_XXXXXX"); \
686 e = mkstemp(b); \
687 if (e != -1) close(e); \
688 e = (e == -1); }
689
690 #else
691 #define LUA_TMPNAMBUFSIZE L_tmpnam
692 #define lua_tmpnam(b,e) { e = (tmpnam(b) == NULL); }
693 #endif
694
695 #endif
696
697
698 /*
699 @@ lua_popen spawns a new process connected to the current one through
700 @* the file streams.
701 ** CHANGE it if you have a way to implement it in your system.
702 */
703 #if defined(LUA_USE_POPEN)
704
705 #define lua_popen(L,c,m) ((void)L, fflush(NULL), popen(c,m))
706 #define lua_pclose(L,file) ((void)L, (pclose(file) != -1))
707
708 #elif defined(LUA_WIN)
709
710 #define lua_popen(L,c,m) ((void)L, _popen(c,m))
711 #define lua_pclose(L,file) ((void)L, (_pclose(file) != -1))
712
713 #else
714
715 #define lua_popen(L,c,m) ((void)((void)c, m), \
716 luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0)
717 #define lua_pclose(L,file) ((void)((void)L, file), 0)
718
719 #endif
720
721 /*
722 @@ LUA_DL_* define which dynamic-library system Lua should use.
723 ** CHANGE here if Lua has problems choosing the appropriate
724 ** dynamic-library system for your platform (either Windows' DLL, Mac's
725 ** dyld, or Unix's dlopen). If your system is some kind of Unix, there
726 ** is a good chance that it has dlopen, so LUA_DL_DLOPEN will work for
727 ** it. To use dlopen you also need to adapt the src/Makefile (probably
728 ** adding -ldl to the linker options), so Lua does not select it
729 ** automatically. (When you change the makefile to add -ldl, you must
730 ** also add -DLUA_USE_DLOPEN.)
731 ** If you do not want any kind of dynamic library, undefine all these
732 ** options.
733 ** By default, _WIN32 gets LUA_DL_DLL and MAC OS X gets LUA_DL_DYLD.
734 */
735 #if defined(LUA_USE_DLOPEN)
736 #define LUA_DL_DLOPEN
737 #endif
738
739 #if defined(LUA_WIN)
740 #define LUA_DL_DLL
741 #endif
742
743
744 /*
745 @@ LUAI_EXTRASPACE allows you to add user-specific data in a lua_State
746 @* (the data goes just *before* the lua_State pointer).
747 ** CHANGE (define) this if you really need that. This value must be
748 ** a multiple of the maximum alignment required for your machine.
749 */
750 #define LUAI_EXTRASPACE 0
751
752
753 /*
754 @@ luai_userstate* allow user-specific actions on threads.
755 ** CHANGE them if you defined LUAI_EXTRASPACE and need to do something
756 ** extra when a thread is created/deleted/resumed/yielded.
757 */
758 #define luai_userstateopen(L) ((void)L)
759 #define luai_userstateclose(L) ((void)L)
760 #define luai_userstatethread(L,L1) ((void)L)
761 #define luai_userstatefree(L) ((void)L)
762 #define luai_userstateresume(L,n) ((void)L)
763 #define luai_userstateyield(L,n) ((void)L)
764
765
766 /*
767 @@ LUA_INTFRMLEN is the length modifier for integer conversions
768 @* in 'string.format'.
769 @@ LUA_INTFRM_T is the integer type correspoding to the previous length
770 @* modifier.
771 ** CHANGE them if your system supports long long or does not support long.
772 */
773
774 #if defined(LUA_USELONGLONG)
775
776 #define LUA_INTFRMLEN "ll"
777 #define LUA_INTFRM_T long long
778
779 #else
780
781 #define LUA_INTFRMLEN "l"
782 #define LUA_INTFRM_T long
783
784 #endif
785
786
787
788 /* =================================================================== */
789
790 /*
791 ** Local configuration. You can use this space to add your redefinitions
792 ** without modifying the main part of the file.
793 */
794
795 #ifdef OPT_DBG_LUA_ASSERT
796 void dbg_dump_assert(const char *dumpname, const char *expr,const char *file, int line);
797 #define lua_assert(x) ((x)?(void)0:dbg_dump_assert("A/LUAASRT.DMP",#x,__FILE__,__LINE__))
798 #endif
799
800 #endif
801 #ifdef THUMB_FW
802 int chdk_luai_numdiv(int a, int b);
803 int chdk_luai_nummod(int a, int b);
804 #endif