/[pcre]/code/trunk/pcre_internal.h
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revision 576 by ph10, Sun Nov 21 18:45:10 2010 UTC revision 1061 by chpe, Tue Oct 16 15:54:02 2012 UTC
# Line 7  Line 7 
7  and semantics are as close as possible to those of the Perl 5 language.  and semantics are as close as possible to those of the Perl 5 language.
8    
9                         Written by Philip Hazel                         Written by Philip Hazel
10             Copyright (c) 1997-2010 University of Cambridge             Copyright (c) 1997-2012 University of Cambridge
11    
12  -----------------------------------------------------------------------------  -----------------------------------------------------------------------------
13  Redistribution and use in source and binary forms, with or without  Redistribution and use in source and binary forms, with or without
# Line 40  POSSIBILITY OF SUCH DAMAGE. Line 40  POSSIBILITY OF SUCH DAMAGE.
40    
41  /* This header contains definitions that are shared between the different  /* This header contains definitions that are shared between the different
42  modules, but which are not relevant to the exported API. This includes some  modules, but which are not relevant to the exported API. This includes some
43  functions whose names all begin with "_pcre_". */  functions whose names all begin with "_pcre_", "_pcre16_" or "_pcre32_"
44    depending on the PRIV macro. */
45    
46  #ifndef PCRE_INTERNAL_H  #ifndef PCRE_INTERNAL_H
47  #define PCRE_INTERNAL_H  #define PCRE_INTERNAL_H
# Line 51  functions whose names all begin with "_p Line 52  functions whose names all begin with "_p
52  #define PCRE_DEBUG  #define PCRE_DEBUG
53  #endif  #endif
54    
55  /* We do not support both EBCDIC and UTF-8 at the same time. The "configure"  /* PCRE is compiled as an 8 bit library if it is not requested otherwise. */
56  script prevents both being selected, but not everybody uses "configure". */  #if !defined COMPILE_PCRE16 && ! defined COMPILE_PCRE32
57    #define COMPILE_PCRE8
 #if defined EBCDIC && defined SUPPORT_UTF8  
 #error The use of both EBCDIC and SUPPORT_UTF8 is not supported.  
58  #endif  #endif
59    
60  /* If SUPPORT_UCP is defined, SUPPORT_UTF8 must also be defined. The  /* If SUPPORT_UCP is defined, SUPPORT_UTF must also be defined. The
61  "configure" script ensures this, but not everybody uses "configure". */  "configure" script ensures this, but not everybody uses "configure". */
62    
63  #if defined SUPPORT_UCP && !defined SUPPORT_UTF8  #if defined SUPPORT_UCP && !(defined SUPPORT_UTF)
64    #define SUPPORT_UTF 1
65    #endif
66    
67    /* We define SUPPORT_UTF if SUPPORT_UTF8 is enabled for compatibility
68    reasons with existing code. */
69    
70    #if defined SUPPORT_UTF8 && !(defined SUPPORT_UTF)
71    #define SUPPORT_UTF 1
72    #endif
73    
74    /* Fixme: SUPPORT_UTF8 should be eventually disappear from the code.
75    Until then we define it if SUPPORT_UTF is defined. */
76    
77    #if defined SUPPORT_UTF && !(defined SUPPORT_UTF8)
78  #define SUPPORT_UTF8 1  #define SUPPORT_UTF8 1
79  #endif  #endif
80    
81    /* We do not support both EBCDIC and UTF-8/16/32 at the same time. The "configure"
82    script prevents both being selected, but not everybody uses "configure". */
83    
84    #if defined EBCDIC && defined SUPPORT_UTF
85    #error The use of both EBCDIC and SUPPORT_UTF is not supported.
86    #endif
87    
88  /* Use a macro for debugging printing, 'cause that eliminates the use of #ifdef  /* Use a macro for debugging printing, 'cause that eliminates the use of #ifdef
89  inline, and there are *still* stupid compilers about that don't like indented  inline, and there are *still* stupid compilers about that don't like indented
90  pre-processor statements, or at least there were when I first wrote this. After  pre-processor statements, or at least there were when I first wrote this. After
# Line 158  set, we ensure here that it has no effec Line 178  set, we ensure here that it has no effec
178  #define PCRE_CALL_CONVENTION  #define PCRE_CALL_CONVENTION
179  #endif  #endif
180    
181  /* We need to have types that specify unsigned 16-bit and 32-bit integers. We  /* We need to have types that specify unsigned 8, 16 and 32-bit integers. We
182  cannot determine these outside the compilation (e.g. by running a program as  cannot determine these outside the compilation (e.g. by running a program as
183  part of "configure") because PCRE is often cross-compiled for use on other  part of "configure") because PCRE is often cross-compiled for use on other
184  systems. Instead we make use of the maximum sizes that are available at  systems. Instead we make use of the maximum sizes that are available at
185  preprocessor time in standard C environments. */  preprocessor time in standard C environments. */
186    
187    typedef unsigned char pcre_uint8;
188    
189  #if USHRT_MAX == 65535  #if USHRT_MAX == 65535
190    typedef unsigned short pcre_uint16;    typedef unsigned short pcre_uint16;
191    typedef short pcre_int16;    typedef short pcre_int16;
# Line 206  by "configure". */ Line 228  by "configure". */
228    
229  /* All character handling must be done as unsigned characters. Otherwise there  /* All character handling must be done as unsigned characters. Otherwise there
230  are problems with top-bit-set characters and functions such as isspace().  are problems with top-bit-set characters and functions such as isspace().
231  However, we leave the interface to the outside world as char *, because that  However, we leave the interface to the outside world as char * or short *,
232  should make things easier for callers. We define a short type for unsigned char  because that should make things easier for callers. This character type is
233  to save lots of typing. I tried "uchar", but it causes problems on Digital  called pcre_uchar.
234  Unix, where it is defined in sys/types, so use "uschar" instead. */  
235    The IN_UCHARS macro multiply its argument with the byte size of the current
236    pcre_uchar type. Useful for memcpy and such operations, whose require the
237    byte size of their input/output buffers.
238    
239    The MAX_255 macro checks whether its pcre_uchar input is less than 256.
240    
241    The TABLE_GET macro is designed for accessing elements of tables whose contain
242    exactly 256 items. When the character is able to contain more than 256
243    items, some check is needed before accessing these tables.
244    */
245    
246    #if defined COMPILE_PCRE8
247    
248  typedef unsigned char uschar;  typedef unsigned char pcre_uchar;
249    #define IN_UCHARS(x) (x)
250    #define MAX_255(c) 1
251    #define TABLE_GET(c, table, default) ((table)[c])
252    
253    #elif defined COMPILE_PCRE16
254    
255    #if USHRT_MAX != 65535
256    /* This is a warning message. Change PCRE_UCHAR16 to a 16 bit data type in
257    pcre.h(.in) and disable (comment out) this message. */
258    #error Warning: PCRE_UCHAR16 is not a 16 bit data type.
259    #endif
260    
261    typedef pcre_uint16 pcre_uchar;
262    #define UCHAR_SHIFT (1)
263    #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
264    #define MAX_255(c) ((c) <= 255u)
265    #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
266    
267    #elif defined COMPILE_PCRE32
268    
269    typedef pcre_uint32 pcre_uchar;
270    #define UCHAR_SHIFT (2)
271    #define IN_UCHARS(x) ((x) << UCHAR_SHIFT)
272    #define MAX_255(c) ((c) <= 255u)
273    #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
274    
275    /* Assert that pcre_uchar32 is a 32-bit type */
276    typedef int __assert_pcre_uchar32_size[sizeof(pcre_uchar) == 4 ? 1 : -1];
277    
278    #else
279    #error Unsupported compiling mode
280    #endif /* COMPILE_PCRE[8|16|32] */
281    
282  /* This is an unsigned int value that no character can ever have. UTF-8  /* This is an unsigned int value that no character can ever have. UTF-8
283  characters only go up to 0x7fffffff (though Unicode doesn't go beyond  characters only go up to 0x7fffffff (though Unicode doesn't go beyond
# Line 234  start/end of string field names are. */ Line 300  start/end of string field names are. */
300  #define IS_NEWLINE(p) \  #define IS_NEWLINE(p) \
301    ((NLBLOCK->nltype != NLTYPE_FIXED)? \    ((NLBLOCK->nltype != NLTYPE_FIXED)? \
302      ((p) < NLBLOCK->PSEND && \      ((p) < NLBLOCK->PSEND && \
303       _pcre_is_newline((p), NLBLOCK->nltype, NLBLOCK->PSEND, &(NLBLOCK->nllen),\       PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
304         utf8)) \         &(NLBLOCK->nllen), utf)) \
305      : \      : \
306      ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \      ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
307       (p)[0] == NLBLOCK->nl[0] && \       (p)[0] == NLBLOCK->nl[0] && \
# Line 248  start/end of string field names are. */ Line 314  start/end of string field names are. */
314  #define WAS_NEWLINE(p) \  #define WAS_NEWLINE(p) \
315    ((NLBLOCK->nltype != NLTYPE_FIXED)? \    ((NLBLOCK->nltype != NLTYPE_FIXED)? \
316      ((p) > NLBLOCK->PSSTART && \      ((p) > NLBLOCK->PSSTART && \
317       _pcre_was_newline((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \       PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
318         &(NLBLOCK->nllen), utf8)) \         &(NLBLOCK->nllen), utf)) \
319      : \      : \
320      ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \      ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
321       (p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \       (p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \
# Line 267  used for the external interface and appe Line 333  used for the external interface and appe
333  must begin with PCRE_. */  must begin with PCRE_. */
334    
335  #ifdef CUSTOM_SUBJECT_PTR  #ifdef CUSTOM_SUBJECT_PTR
336  #define PCRE_SPTR CUSTOM_SUBJECT_PTR  #define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
 #define USPTR CUSTOM_SUBJECT_PTR  
337  #else  #else
338  #define PCRE_SPTR const char *  #define PCRE_PUCHAR const pcre_uchar *
 #define USPTR const unsigned char *  
339  #endif  #endif
340    
   
   
341  /* Include the public PCRE header and the definitions of UCP character property  /* Include the public PCRE header and the definitions of UCP character property
342  values. */  values. */
343    
# Line 343  The macros are controlled by the value o Line 405  The macros are controlled by the value o
405  the config.h file, but can be overridden by using -D on the command line. This  the config.h file, but can be overridden by using -D on the command line. This
406  is automated on Unix systems via the "configure" command. */  is automated on Unix systems via the "configure" command. */
407    
408    #if defined COMPILE_PCRE8
409    
410  #if LINK_SIZE == 2  #if LINK_SIZE == 2
411    
412  #define PUT(a,n,d)   \  #define PUT(a,n,d)   \
# Line 379  is automated on Unix systems via the "co Line 443  is automated on Unix systems via the "co
443  #define GET(a,n) \  #define GET(a,n) \
444    (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])    (((a)[n] << 24) | ((a)[(n)+1] << 16) | ((a)[(n)+2] << 8) | (a)[(n)+3])
445    
446  #define MAX_PATTERN_SIZE (1 << 30)   /* Keep it positive */  /* Keep it positive */
447    #define MAX_PATTERN_SIZE (1 << 30)
448    
449    #else
450    #error LINK_SIZE must be either 2, 3, or 4
451    #endif
452    
453    #elif defined COMPILE_PCRE16
454    
455    #if LINK_SIZE == 2
456    
457    /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
458    #undef LINK_SIZE
459    #define LINK_SIZE 1
460    
461    #define PUT(a,n,d)   \
462      (a[n] = (d))
463    
464    #define GET(a,n) \
465      (a[n])
466    
467    #define MAX_PATTERN_SIZE (1 << 16)
468    
469    #elif LINK_SIZE == 3 || LINK_SIZE == 4
470    
471    /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
472    #undef LINK_SIZE
473    #define LINK_SIZE 2
474    
475    #define PUT(a,n,d)   \
476      (a[n] = (d) >> 16), \
477      (a[(n)+1] = (d) & 65535)
478    
479    #define GET(a,n) \
480      (((a)[n] << 16) | (a)[(n)+1])
481    
482    /* Keep it positive */
483    #define MAX_PATTERN_SIZE (1 << 30)
484    
485  #else  #else
486  #error LINK_SIZE must be either 2, 3, or 4  #error LINK_SIZE must be either 2, 3, or 4
487  #endif  #endif
488    
489    #elif defined COMPILE_PCRE32
490    
491    /* Only supported LINK_SIZE is 4 */
492    /* Redefine LINK_SIZE as a multiple of sizeof(pcre_uchar) */
493    #undef LINK_SIZE
494    #define LINK_SIZE 1
495    
496    #define PUT(a,n,d)   \
497      (a[n] = (d))
498    
499    #define GET(a,n) \
500      (a[n])
501    
502    /* Keep it positive */
503    #define MAX_PATTERN_SIZE (1 << 30)
504    
505    #else
506    #error Unsupported compiling mode
507    #endif /* COMPILE_PCRE[8|16|32] */
508    
509  /* Convenience macro defined in terms of the others */  /* Convenience macro defined in terms of the others */
510    
# Line 396  is automated on Unix systems via the "co Line 515  is automated on Unix systems via the "co
515  offsets changes. There are used for repeat counts and for other things such as  offsets changes. There are used for repeat counts and for other things such as
516  capturing parenthesis numbers in back references. */  capturing parenthesis numbers in back references. */
517    
518    #if defined COMPILE_PCRE8
519    
520    #define IMM2_SIZE 2
521    
522  #define PUT2(a,n,d)   \  #define PUT2(a,n,d)   \
523    a[n] = (d) >> 8; \    a[n] = (d) >> 8; \
524    a[(n)+1] = (d) & 255    a[(n)+1] = (d) & 255
# Line 403  capturing parenthesis numbers in back re Line 526  capturing parenthesis numbers in back re
526  #define GET2(a,n) \  #define GET2(a,n) \
527    (((a)[n] << 8) | (a)[(n)+1])    (((a)[n] << 8) | (a)[(n)+1])
528    
529  #define PUT2INC(a,n,d)  PUT2(a,n,d), a += 2  #elif defined COMPILE_PCRE16
530    
531    #define IMM2_SIZE 1
532    
533  /* When UTF-8 encoding is being used, a character is no longer just a single  #define PUT2(a,n,d)   \
534  byte. The macros for character handling generate simple sequences when used in     a[n] = d
535  byte-mode, and more complicated ones for UTF-8 characters. GETCHARLENTEST is  
536  not used when UTF-8 is not supported, so it is not defined, and BACKCHAR should  #define GET2(a,n) \
537  never be called in byte mode. To make sure they can never even appear when     a[n]
538  UTF-8 support is omitted, we don't even define them. */  
539    #elif defined COMPILE_PCRE32
540    
541    #define IMM2_SIZE 1
542    
543    #define PUT2(a,n,d)   \
544       a[n] = d
545    
546  #ifndef SUPPORT_UTF8  #define GET2(a,n) \
547       a[n]
548    
549    #else
550    #error Unsupported compiling mode
551    #endif /* COMPILE_PCRE[8|16|32] */
552    
553    #define PUT2INC(a,n,d)  PUT2(a,n,d), a += IMM2_SIZE
554    
555    /* The maximum length of a MARK name is currently one data unit; it may be
556    changed in future to be a fixed number of bytes or to depend on LINK_SIZE. */
557    
558    #if defined COMPILE_PCRE16 || defined COMPILE_PCRE32
559    #define MAX_MARK ((1u << 16) - 1)
560    #else
561    #define MAX_MARK ((1u << 8) - 1)
562    #endif
563    
564    /* When UTF encoding is being used, a character is no longer just a single
565    byte. The macros for character handling generate simple sequences when used in
566    character-mode, and more complicated ones for UTF characters. GETCHARLENTEST
567    and other macros are not used when UTF is not supported, so they are not
568    defined. To make sure they can never even appear when UTF support is omitted,
569    we don't even define them. */
570    
571    #ifndef SUPPORT_UTF
572    
573    /* #define MAX_VALUE_FOR_SINGLE_CHAR */
574    /* #define HAS_EXTRALEN(c) */
575    /* #define GET_EXTRALEN(c) */
576    /* #define NOT_FIRSTCHAR(c) */
577  #define GETCHAR(c, eptr) c = *eptr;  #define GETCHAR(c, eptr) c = *eptr;
578  #define GETCHARTEST(c, eptr) c = *eptr;  #define GETCHARTEST(c, eptr) c = *eptr;
579  #define GETCHARINC(c, eptr) c = *eptr++;  #define GETCHARINC(c, eptr) c = *eptr++;
# Line 421  UTF-8 support is omitted, we don't even Line 581  UTF-8 support is omitted, we don't even
581  #define GETCHARLEN(c, eptr, len) c = *eptr;  #define GETCHARLEN(c, eptr, len) c = *eptr;
582  /* #define GETCHARLENTEST(c, eptr, len) */  /* #define GETCHARLENTEST(c, eptr, len) */
583  /* #define BACKCHAR(eptr) */  /* #define BACKCHAR(eptr) */
584    /* #define FORWARDCHAR(eptr) */
585    /* #define ACROSSCHAR(condition, eptr, action) */
586    
587  #else   /* SUPPORT_UTF8 */  #else   /* SUPPORT_UTF */
588    
589    #if defined COMPILE_PCRE8
590    
591  /* These macros were originally written in the form of loops that used data  /* These macros were originally written in the form of loops that used data
592  from the tables whose names start with _pcre_utf8_table. They were rewritten by  from the tables whose names start with PRIV(utf8_table). They were rewritten by
593  a user so as not to use loops, because in some environments this gives a  a user so as not to use loops, because in some environments this gives a
594  significant performance advantage, and it seems never to do any harm. */  significant performance advantage, and it seems never to do any harm. */
595    
596    /* Tells the biggest code point which can be encoded as a single character. */
597    
598    #define MAX_VALUE_FOR_SINGLE_CHAR 127
599    
600    /* Tests whether the code point needs extra characters to decode. */
601    
602    #define HAS_EXTRALEN(c) ((c) >= 0xc0)
603    
604    /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
605    Otherwise it has an undefined behaviour. */
606    
607    #define GET_EXTRALEN(c) (PRIV(utf8_table4)[(c) & 0x3f])
608    
609    /* Returns TRUE, if the given character is not the first character
610    of a UTF sequence. */
611    
612    #define NOT_FIRSTCHAR(c) (((c) & 0xc0) == 0x80)
613    
614  /* Base macro to pick up the remaining bytes of a UTF-8 character, not  /* Base macro to pick up the remaining bytes of a UTF-8 character, not
615  advancing the pointer. */  advancing the pointer. */
616    
# Line 463  pointer. */ Line 645  pointer. */
645    
646  #define GETCHARTEST(c, eptr) \  #define GETCHARTEST(c, eptr) \
647    c = *eptr; \    c = *eptr; \
648    if (utf8 && c >= 0xc0) GETUTF8(c, eptr);    if (utf && c >= 0xc0) GETUTF8(c, eptr);
649    
650  /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing  /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
651  the pointer. */  the pointer. */
# Line 511  This is called when we don't know if we Line 693  This is called when we don't know if we
693    
694  #define GETCHARINCTEST(c, eptr) \  #define GETCHARINCTEST(c, eptr) \
695    c = *eptr++; \    c = *eptr++; \
696    if (utf8 && c >= 0xc0) GETUTF8INC(c, eptr);    if (utf && c >= 0xc0) GETUTF8INC(c, eptr);
697    
698  /* Base macro to pick up the remaining bytes of a UTF-8 character, not  /* Base macro to pick up the remaining bytes of a UTF-8 character, not
699  advancing the pointer, incrementing the length. */  advancing the pointer, incrementing the length. */
# Line 563  do not know if we are in UTF-8 mode. */ Line 745  do not know if we are in UTF-8 mode. */
745    
746  #define GETCHARLENTEST(c, eptr, len) \  #define GETCHARLENTEST(c, eptr, len) \
747    c = *eptr; \    c = *eptr; \
748    if (utf8 && c >= 0xc0) GETUTF8LEN(c, eptr, len);    if (utf && c >= 0xc0) GETUTF8LEN(c, eptr, len);
749    
750  /* If the pointer is not at the start of a character, move it back until  /* If the pointer is not at the start of a character, move it back until
751  it is. This is called only in UTF-8 mode - we don't put a test within the macro  it is. This is called only in UTF-8 mode - we don't put a test within the macro
# Line 571  because almost all calls are already wit Line 753  because almost all calls are already wit
753    
754  #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--  #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
755    
756  #endif  /* SUPPORT_UTF8 */  /* Same as above, just in the other direction. */
757    #define FORWARDCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr++
758    
759    /* Same as above, but it allows a fully customizable form. */
760    #define ACROSSCHAR(condition, eptr, action) \
761      while((condition) && ((eptr) & 0xc0) == 0x80) action
762    
763  /* In case there is no definition of offsetof() provided - though any proper  #elif defined COMPILE_PCRE16
 Standard C system should have one. */  
764    
765  #ifndef offsetof  /* Tells the biggest code point which can be encoded as a single character. */
766  #define offsetof(p_type,field) ((size_t)&(((p_type *)0)->field))  
767  #endif  #define MAX_VALUE_FOR_SINGLE_CHAR 65535
768    
769    /* Tests whether the code point needs extra characters to decode. */
770    
771    #define HAS_EXTRALEN(c) (((c) & 0xfc00) == 0xd800)
772    
773    /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
774    Otherwise it has an undefined behaviour. */
775    
776    #define GET_EXTRALEN(c) 1
777    
778    /* Returns TRUE, if the given character is not the first character
779    of a UTF sequence. */
780    
781    #define NOT_FIRSTCHAR(c) (((c) & 0xfc00) == 0xdc00)
782    
783    /* Base macro to pick up the low surrogate of a UTF-16 character, not
784    advancing the pointer. */
785    
786    #define GETUTF16(c, eptr) \
787       { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; }
788    
789    /* Get the next UTF-16 character, not advancing the pointer. This is called when
790    we know we are in UTF-16 mode. */
791    
792    #define GETCHAR(c, eptr) \
793      c = *eptr; \
794      if ((c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
795    
796    /* Get the next UTF-16 character, testing for UTF-16 mode, and not advancing the
797    pointer. */
798    
799    #define GETCHARTEST(c, eptr) \
800      c = *eptr; \
801      if (utf && (c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
802    
803    /* Base macro to pick up the low surrogate of a UTF-16 character, advancing
804    the pointer. */
805    
806    #define GETUTF16INC(c, eptr) \
807       { c = (((c & 0x3ff) << 10) | (*eptr++ & 0x3ff)) + 0x10000; }
808    
809    /* Get the next UTF-16 character, advancing the pointer. This is called when we
810    know we are in UTF-16 mode. */
811    
812    #define GETCHARINC(c, eptr) \
813      c = *eptr++; \
814      if ((c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
815    
816    /* Get the next character, testing for UTF-16 mode, and advancing the pointer.
817    This is called when we don't know if we are in UTF-16 mode. */
818    
819    #define GETCHARINCTEST(c, eptr) \
820      c = *eptr++; \
821      if (utf && (c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
822    
823    /* Base macro to pick up the low surrogate of a UTF-16 character, not
824    advancing the pointer, incrementing the length. */
825    
826    #define GETUTF16LEN(c, eptr, len) \
827       { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; len++; }
828    
829    /* Get the next UTF-16 character, not advancing the pointer, incrementing
830    length if there is a low surrogate. This is called when we know we are in
831    UTF-16 mode. */
832    
833    #define GETCHARLEN(c, eptr, len) \
834      c = *eptr; \
835      if ((c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
836    
837    /* Get the next UTF-816character, testing for UTF-16 mode, not advancing the
838    pointer, incrementing length if there is a low surrogate. This is called when
839    we do not know if we are in UTF-16 mode. */
840    
841    #define GETCHARLENTEST(c, eptr, len) \
842      c = *eptr; \
843      if (utf && (c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
844    
845    /* If the pointer is not at the start of a character, move it back until
846    it is. This is called only in UTF-16 mode - we don't put a test within the
847    macro because almost all calls are already within a block of UTF-16 only
848    code. */
849    
850    #define BACKCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr--
851    
852    /* Same as above, just in the other direction. */
853    #define FORWARDCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr++
854    
855    /* Same as above, but it allows a fully customizable form. */
856    #define ACROSSCHAR(condition, eptr, action) \
857      if ((condition) && ((eptr) & 0xfc00) == 0xdc00) action
858    
859    #elif defined COMPILE_PCRE32
860    
861    /* These are unnecessary for the 32-bit library */
862    #undef MAX_VALUE_FOR_SINGLE_CHAR
863    #undef HAS_EXTRALEN
864    #undef GET_EXTRALEN
865    #undef NOT_FIRSTCHAR
866    
867    /* Get the next UTF-32 character, not advancing the pointer. This is called when
868    we know we are in UTF-32 mode. */
869    
870    #define GETCHAR(c, eptr) \
871      c = *eptr;
872    
873    /* Get the next UTF-32 character, testing for UTF-32 mode, and not advancing the
874    pointer. */
875    
876    #define GETCHARTEST(c, eptr) \
877      c = *eptr;
878    
879    /* Get the next UTF-32 character, advancing the pointer. This is called when we
880    know we are in UTF-32 mode. */
881    
882    #define GETCHARINC(c, eptr) \
883      c = *eptr++;
884    
885    /* Get the next character, testing for UTF-32 mode, and advancing the pointer.
886    This is called when we don't know if we are in UTF-32 mode. */
887    
888    #define GETCHARINCTEST(c, eptr) \
889      c = *eptr++;
890    
891    /* Get the next UTF-32 character, not advancing the pointer, not incrementing
892    length (since all UTF-32 is of length 1). This is called when we know we are in
893    UTF-32 mode. */
894    
895    #define GETCHARLEN(c, eptr, len) \
896      c = *eptr;
897    
898    /* Get the next UTF-832character, testing for UTF-32 mode, not advancing the
899    pointer, not incrementing the length (since all UTF-32 is of length 1).
900    This is called when we do not know if we are in UTF-32 mode. */
901    
902    #define GETCHARLENTEST(c, eptr, len) \
903      c = *eptr;
904    
905    /* If the pointer is not at the start of a character, move it back until
906    it is. This is called only in UTF-32 mode - we don't put a test within the
907    macro because almost all calls are already within a block of UTF-32 only
908    code. */
909    
910    #define BACKCHAR(eptr) do { } while (0)
911    
912    /* Same as above, just in the other direction. */
913    #define FORWARDCHAR(eptr) do { } while (0)
914    
915    /* Same as above, but it allows a fully customizable form. */
916    #define ACROSSCHAR(condition, eptr, action) do { } while (0)
917    
918    #else
919    #error Unsupported compiling mode
920    #endif /* COMPILE_PCRE[8|16|32] */
921    
922    #endif  /* SUPPORT_UTF */
923    
924    /* Tests for Unicode horizontal and vertical whitespace characters must check a
925    number of different values. Using a switch statement for this generates the
926    fastest code (no loop, no memory access), and there are several places in the
927    interpreter code where this happens. In order to ensure that all the case lists
928    remain in step, we use macros so that there is only one place where the lists
929    are defined.
930    
931    These values are also required as lists in pcre_compile.c when processing \h,
932    \H, \v and \V in a character class. The lists are defined in pcre_tables.c, but
933    macros that define the values are here so that all the definitions are
934    together. The lists must be in ascending character order, terminated by
935    NOTACHAR (which is 0xffffffff).
936    
937    Any changes should ensure that the various macros are kept in step with each
938    other. NOTE: The values also appear in pcre_jit_compile.c. */
939    
940    /* ------ ASCII/Unicode environments ------ */
941    
942    #ifndef EBCDIC
943    
944    #define HSPACE_LIST \
945      CHAR_HT, CHAR_SPACE, 0xa0, \
946      0x1680, 0x180e, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, \
947      0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202f, 0x205f, 0x3000, \
948      NOTACHAR
949    
950    #define HSPACE_MULTIBYTE_CASES \
951      case 0x1680:  /* OGHAM SPACE MARK */ \
952      case 0x180e:  /* MONGOLIAN VOWEL SEPARATOR */ \
953      case 0x2000:  /* EN QUAD */ \
954      case 0x2001:  /* EM QUAD */ \
955      case 0x2002:  /* EN SPACE */ \
956      case 0x2003:  /* EM SPACE */ \
957      case 0x2004:  /* THREE-PER-EM SPACE */ \
958      case 0x2005:  /* FOUR-PER-EM SPACE */ \
959      case 0x2006:  /* SIX-PER-EM SPACE */ \
960      case 0x2007:  /* FIGURE SPACE */ \
961      case 0x2008:  /* PUNCTUATION SPACE */ \
962      case 0x2009:  /* THIN SPACE */ \
963      case 0x200A:  /* HAIR SPACE */ \
964      case 0x202f:  /* NARROW NO-BREAK SPACE */ \
965      case 0x205f:  /* MEDIUM MATHEMATICAL SPACE */ \
966      case 0x3000   /* IDEOGRAPHIC SPACE */
967    
968    #define HSPACE_BYTE_CASES \
969      case CHAR_HT: \
970      case CHAR_SPACE: \
971      case 0xa0     /* NBSP */
972    
973    #define HSPACE_CASES \
974      HSPACE_BYTE_CASES: \
975      HSPACE_MULTIBYTE_CASES
976    
977    #define VSPACE_LIST \
978      CHAR_LF, CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, 0x2028, 0x2029, NOTACHAR
979    
980    #define VSPACE_MULTIBYTE_CASES \
981      case 0x2028:    /* LINE SEPARATOR */ \
982      case 0x2029     /* PARAGRAPH SEPARATOR */
983    
984    #define VSPACE_BYTE_CASES \
985      case CHAR_LF: \
986      case CHAR_VT: \
987      case CHAR_FF: \
988      case CHAR_CR: \
989      case CHAR_NEL
990    
991    #define VSPACE_CASES \
992      VSPACE_BYTE_CASES: \
993      VSPACE_MULTIBYTE_CASES
994    
995    /* ------ EBCDIC environments ------ */
996    
997    #else
998    #define HSPACE_LIST CHAR_HT, CHAR_SPACE
999    
1000    #define HSPACE_BYTE_CASES \
1001      case CHAR_HT: \
1002      case CHAR_SPACE
1003    
1004    #define HSPACE_CASES HSPACE_BYTE_CASES
1005    
1006    #ifdef EBCDIC_NL25
1007    #define VSPACE_LIST \
1008      CHAR_VT, CHAR_FF, CHAR_CR, CHAR_NEL, CHAR_LF, NOTACHAR
1009    #else
1010    #define VSPACE_LIST \
1011      CHAR_VT, CHAR_FF, CHAR_CR, CHAR_LF, CHAR_NEL, NOTACHAR
1012    #endif
1013    
1014    #define VSPACE_BYTE_CASES \
1015      case CHAR_LF: \
1016      case CHAR_VT: \
1017      case CHAR_FF: \
1018      case CHAR_CR: \
1019      case CHAR_NEL
1020    
1021    #define VSPACE_CASES VSPACE_BYTE_CASES
1022    #endif  /* EBCDIC */
1023    
1024    /* ------ End of whitespace macros ------ */
1025    
 /* These are the public options that can change during matching. */  
1026    
 #define PCRE_IMS (PCRE_CASELESS|PCRE_MULTILINE|PCRE_DOTALL)  
1027    
1028  /* Private flags containing information about the compiled regex. They used to  /* Private flags containing information about the compiled regex. They used to
1029  live at the top end of the options word, but that got almost full, so now they  live at the top end of the options word, but that got almost full, so now they
# Line 592  are in a 16-bit flags word. From release Line 1031  are in a 16-bit flags word. From release
1031  the restrictions on partial matching have been lifted. It remains for backwards  the restrictions on partial matching have been lifted. It remains for backwards
1032  compatibility. */  compatibility. */
1033    
1034  #define PCRE_NOPARTIAL     0x0001  /* can't use partial with this regex */  #define PCRE_MODE8         0x0001  /* compiled in 8 bit mode */
1035  #define PCRE_FIRSTSET      0x0002  /* first_byte is set */  #define PCRE_MODE16        0x0002  /* compiled in 16 bit mode */
1036  #define PCRE_REQCHSET      0x0004  /* req_byte is set */  #define PCRE_MODE32        0x0004  /* compiled in 32 bit mode */
1037  #define PCRE_STARTLINE     0x0008  /* start after \n for multiline */  #define PCRE_FIRSTSET      0x0010  /* first_char is set */
1038  #define PCRE_JCHANGED      0x0010  /* j option used in regex */  #define PCRE_FCH_CASELESS  0x0020  /* caseless first char */
1039  #define PCRE_HASCRORLF     0x0020  /* explicit \r or \n in pattern */  #define PCRE_REQCHSET      0x0040  /* req_byte is set */
1040    #define PCRE_RCH_CASELESS  0x0080  /* caseless requested char */
1041    #define PCRE_STARTLINE     0x0100  /* start after \n for multiline */
1042    #define PCRE_NOPARTIAL     0x0200  /* can't use partial with this regex */
1043    #define PCRE_JCHANGED      0x0400  /* j option used in regex */
1044    #define PCRE_HASCRORLF     0x0800  /* explicit \r or \n in pattern */
1045    #define PCRE_HASTHEN       0x1000  /* pattern contains (*THEN) */
1046    
1047    #if defined COMPILE_PCRE8
1048    #define PCRE_MODE          PCRE_MODE8
1049    #elif defined COMPILE_PCRE16
1050    #define PCRE_MODE          PCRE_MODE16
1051    #elif defined COMPILE_PCRE32
1052    #define PCRE_MODE          PCRE_MODE32
1053    #endif
1054    #define PCRE_MODE_MASK     (PCRE_MODE8 | PCRE_MODE16 | PCRE_MODE32)
1055    
1056  /* Options for the "extra" block produced by pcre_study(). */  /* Flags for the "extra" block produced by pcre_study(). */
1057    
1058  #define PCRE_STUDY_MAPPED   0x01     /* a map of starting chars exists */  #define PCRE_STUDY_MAPPED  0x0001  /* a map of starting chars exists */
1059  #define PCRE_STUDY_MINLEN   0x02     /* a minimum length field exists */  #define PCRE_STUDY_MINLEN  0x0002  /* a minimum length field exists */
1060    
1061  /* Masks for identifying the public options that are permitted at compile  /* Masks for identifying the public options that are permitted at compile
1062  time, run time, or study time, respectively. */  time, run time, or study time, respectively. */
# Line 628  time, run time, or study time, respectiv Line 1082  time, run time, or study time, respectiv
1082     PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \     PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1083     PCRE_NO_START_OPTIMIZE)     PCRE_NO_START_OPTIMIZE)
1084    
1085  #define PUBLIC_STUDY_OPTIONS 0   /* None defined */  #define PUBLIC_STUDY_OPTIONS \
1086       (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
1087        PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE|PCRE_STUDY_EXTRA_NEEDED)
1088    
1089  /* Magic number to provide a small check against being handed junk. Also used  /* Magic number to provide a small check against being handed junk. */
 to detect whether a pattern was compiled on a host of different endianness. */  
1090    
1091  #define MAGIC_NUMBER  0x50435245UL   /* 'PCRE' */  #define MAGIC_NUMBER  0x50435245UL   /* 'PCRE' */
1092    
1093    /* This variable is used to detect a loaded regular expression
1094    in different endianness. */
1095    
1096    #define REVERSED_MAGIC_NUMBER  0x45524350UL   /* 'ERCP' */
1097    
1098  /* Negative values for the firstchar and reqchar variables */  /* Negative values for the firstchar and reqchar variables */
1099    
1100  #define REQ_UNSET (-2)  #define REQ_UNSET (-2)
# Line 645  req_byte match. */ Line 1105  req_byte match. */
1105    
1106  #define REQ_BYTE_MAX 1000  #define REQ_BYTE_MAX 1000
1107    
 /* Flags added to firstbyte or reqbyte; a "non-literal" item is either a  
 variable-length repeat, or a anything other than literal characters. */  
   
 #define REQ_CASELESS 0x0100    /* indicates caselessness */  
 #define REQ_VARY     0x0200    /* reqbyte followed non-literal item */  
   
1108  /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in  /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
1109  environments where these macros are defined elsewhere. Unfortunately, there  environments where these macros are defined elsewhere. Unfortunately, there
1110  is no way to do the same for the typedef. */  is no way to do the same for the typedef. */
# Line 679  for) in a minority area (EBCDIC platform Line 1133  for) in a minority area (EBCDIC platform
1133  application that did need both could compile two versions of the library, using  application that did need both could compile two versions of the library, using
1134  macros to give the functions distinct names. */  macros to give the functions distinct names. */
1135    
1136  #ifndef SUPPORT_UTF8  #ifndef SUPPORT_UTF
1137    
1138  /* UTF-8 support is not enabled; use the platform-dependent character literals  /* UTF-8 support is not enabled; use the platform-dependent character literals
1139  so that PCRE works on both ASCII and EBCDIC platforms, in non-UTF-mode only. */  so that PCRE works in both ASCII and EBCDIC environments, but only in non-UTF
1140    mode. Newline characters are problematic in EBCDIC. Though it has CR and LF
1141    characters, a common practice has been to use its NL (0x15) character as the
1142    line terminator in C-like processing environments. However, sometimes the LF
1143    (0x25) character is used instead, according to this Unicode document:
1144    
1145    http://unicode.org/standard/reports/tr13/tr13-5.html
1146    
1147    PCRE defaults EBCDIC NL to 0x15, but has a build-time option to select 0x25
1148    instead. Whichever is *not* chosen is defined as NEL.
1149    
1150    In both ASCII and EBCDIC environments, CHAR_NL and CHAR_LF are synonyms for the
1151    same code point. */
1152    
1153    #ifdef EBCDIC
1154    
1155    #ifndef EBCDIC_NL25
1156    #define CHAR_NL                     '\x15'
1157    #define CHAR_NEL                    '\x25'
1158    #define STR_NL                      "\x15"
1159    #define STR_NEL                     "\x25"
1160    #else
1161    #define CHAR_NL                     '\x25'
1162    #define CHAR_NEL                    '\x15'
1163    #define STR_NL                      "\x25"
1164    #define STR_NEL                     "\x15"
1165    #endif
1166    
1167    #define CHAR_LF                     CHAR_NL
1168    #define STR_LF                      STR_NL
1169    
1170    #define CHAR_ESC                    '\047'
1171    #define CHAR_DEL                    '\007'
1172    #define STR_ESC                     "\047"
1173    #define STR_DEL                     "\007"
1174    
1175    #else  /* Not EBCDIC */
1176    
1177    /* In ASCII/Unicode, linefeed is '\n' and we equate this to NL for
1178    compatibility. NEL is the Unicode newline character; make sure it is
1179    a positive value. */
1180    
1181    #define CHAR_LF                     '\n'
1182    #define CHAR_NL                     CHAR_LF
1183    #define CHAR_NEL                    ((unsigned char)'\x85')
1184    #define CHAR_ESC                    '\033'
1185    #define CHAR_DEL                    '\177'
1186    
1187    #define STR_LF                      "\n"
1188    #define STR_NL                      STR_LF
1189    #define STR_NEL                     "\x85"
1190    #define STR_ESC                     "\033"
1191    #define STR_DEL                     "\177"
1192    
1193    #endif  /* EBCDIC */
1194    
1195    /* The remaining definitions work in both environments. */
1196    
1197  #define CHAR_HT                     '\t'  #define CHAR_HT                     '\t'
1198  #define CHAR_VT                     '\v'  #define CHAR_VT                     '\v'
1199  #define CHAR_FF                     '\f'  #define CHAR_FF                     '\f'
1200  #define CHAR_CR                     '\r'  #define CHAR_CR                     '\r'
 #define CHAR_NL                     '\n'  
1201  #define CHAR_BS                     '\b'  #define CHAR_BS                     '\b'
1202  #define CHAR_BEL                    '\a'  #define CHAR_BEL                    '\a'
 #ifdef EBCDIC  
 #define CHAR_ESC                    '\047'  
 #define CHAR_DEL                    '\007'  
 #else  
 #define CHAR_ESC                    '\033'  
 #define CHAR_DEL                    '\177'  
 #endif  
1203    
1204  #define CHAR_SPACE                  ' '  #define CHAR_SPACE                  ' '
1205  #define CHAR_EXCLAMATION_MARK       '!'  #define CHAR_EXCLAMATION_MARK       '!'
# Line 799  so that PCRE works on both ASCII and EBC Line 1301  so that PCRE works on both ASCII and EBC
1301  #define STR_VT                      "\v"  #define STR_VT                      "\v"
1302  #define STR_FF                      "\f"  #define STR_FF                      "\f"
1303  #define STR_CR                      "\r"  #define STR_CR                      "\r"
 #define STR_NL                      "\n"  
1304  #define STR_BS                      "\b"  #define STR_BS                      "\b"
1305  #define STR_BEL                     "\a"  #define STR_BEL                     "\a"
 #ifdef EBCDIC  
 #define STR_ESC                     "\047"  
 #define STR_DEL                     "\007"  
 #else  
 #define STR_ESC                     "\033"  
 #define STR_DEL                     "\177"  
 #endif  
1306    
1307  #define STR_SPACE                   " "  #define STR_SPACE                   " "
1308  #define STR_EXCLAMATION_MARK        "!"  #define STR_EXCLAMATION_MARK        "!"
# Line 939  so that PCRE works on both ASCII and EBC Line 1433  so that PCRE works on both ASCII and EBC
1433  #define STRING_ANYCRLF_RIGHTPAR        "ANYCRLF)"  #define STRING_ANYCRLF_RIGHTPAR        "ANYCRLF)"
1434  #define STRING_BSR_ANYCRLF_RIGHTPAR    "BSR_ANYCRLF)"  #define STRING_BSR_ANYCRLF_RIGHTPAR    "BSR_ANYCRLF)"
1435  #define STRING_BSR_UNICODE_RIGHTPAR    "BSR_UNICODE)"  #define STRING_BSR_UNICODE_RIGHTPAR    "BSR_UNICODE)"
1436  #define STRING_UTF8_RIGHTPAR           "UTF8)"  #ifdef COMPILE_PCRE8
1437    #define STRING_UTF_RIGHTPAR            "UTF8)"
1438    #endif
1439    #ifdef COMPILE_PCRE16
1440    #define STRING_UTF_RIGHTPAR            "UTF16)"
1441    #endif
1442    #ifdef COMPILE_PCRE32
1443    #define STRING_UTF_RIGHTPAR            "UTF32)"
1444    #endif
1445  #define STRING_UCP_RIGHTPAR            "UCP)"  #define STRING_UCP_RIGHTPAR            "UCP)"
1446  #define STRING_NO_START_OPT_RIGHTPAR   "NO_START_OPT)"  #define STRING_NO_START_OPT_RIGHTPAR   "NO_START_OPT)"
1447    
1448  #else  /* SUPPORT_UTF8 */  #else  /* SUPPORT_UTF */
1449    
1450  /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This  /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
1451  works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode  works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
# Line 953  only. */ Line 1455  only. */
1455  #define CHAR_VT                     '\013'  #define CHAR_VT                     '\013'
1456  #define CHAR_FF                     '\014'  #define CHAR_FF                     '\014'
1457  #define CHAR_CR                     '\015'  #define CHAR_CR                     '\015'
1458  #define CHAR_NL                     '\012'  #define CHAR_LF                     '\012'
1459    #define CHAR_NL                     CHAR_LF
1460    #define CHAR_NEL                    ((unsigned char)'\x85')
1461  #define CHAR_BS                     '\010'  #define CHAR_BS                     '\010'
1462  #define CHAR_BEL                    '\007'  #define CHAR_BEL                    '\007'
1463  #define CHAR_ESC                    '\033'  #define CHAR_ESC                    '\033'
# Line 1194  only. */ Line 1698  only. */
1698  #define STRING_ANYCRLF_RIGHTPAR        STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS  #define STRING_ANYCRLF_RIGHTPAR        STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1699  #define STRING_BSR_ANYCRLF_RIGHTPAR    STR_B STR_S STR_R STR_UNDERSCORE STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS  #define STRING_BSR_ANYCRLF_RIGHTPAR    STR_B STR_S STR_R STR_UNDERSCORE STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1700  #define STRING_BSR_UNICODE_RIGHTPAR    STR_B STR_S STR_R STR_UNDERSCORE STR_U STR_N STR_I STR_C STR_O STR_D STR_E STR_RIGHT_PARENTHESIS  #define STRING_BSR_UNICODE_RIGHTPAR    STR_B STR_S STR_R STR_UNDERSCORE STR_U STR_N STR_I STR_C STR_O STR_D STR_E STR_RIGHT_PARENTHESIS
1701  #define STRING_UTF8_RIGHTPAR           STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS  #ifdef COMPILE_PCRE8
1702    #define STRING_UTF_RIGHTPAR            STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1703    #endif
1704    #ifdef COMPILE_PCRE16
1705    #define STRING_UTF_RIGHTPAR            STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
1706    #endif
1707    #ifdef COMPILE_PCRE32
1708    #define STRING_UTF_RIGHTPAR            STR_U STR_T STR_F STR_3 STR_2 STR_RIGHT_PARENTHESIS
1709    #endif
1710  #define STRING_UCP_RIGHTPAR            STR_U STR_C STR_P STR_RIGHT_PARENTHESIS  #define STRING_UCP_RIGHTPAR            STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1711  #define STRING_NO_START_OPT_RIGHTPAR   STR_N STR_O STR_UNDERSCORE STR_S STR_T STR_A STR_R STR_T STR_UNDERSCORE STR_O STR_P STR_T STR_RIGHT_PARENTHESIS  #define STRING_NO_START_OPT_RIGHTPAR   STR_N STR_O STR_UNDERSCORE STR_S STR_T STR_A STR_R STR_T STR_UNDERSCORE STR_O STR_P STR_T STR_RIGHT_PARENTHESIS
1712    
1713  #endif  /* SUPPORT_UTF8 */  #endif  /* SUPPORT_UTF */
1714    
1715  /* Escape items that are just an encoding of a particular data value. */  /* Escape items that are just an encoding of a particular data value. */
1716    
# Line 1211  only. */ Line 1723  only. */
1723  #endif  #endif
1724    
1725  #ifndef ESC_n  #ifndef ESC_n
1726  #define ESC_n CHAR_NL  #define ESC_n CHAR_LF
1727  #endif  #endif
1728    
1729  #ifndef ESC_r  #ifndef ESC_r
# Line 1236  only. */ Line 1748  only. */
1748  #define PT_SPACE      6    /* Perl space - Z plus 9,10,12,13 */  #define PT_SPACE      6    /* Perl space - Z plus 9,10,12,13 */
1749  #define PT_PXSPACE    7    /* POSIX space - Z plus 9,10,11,12,13 */  #define PT_PXSPACE    7    /* POSIX space - Z plus 9,10,11,12,13 */
1750  #define PT_WORD       8    /* Word - L plus N plus underscore */  #define PT_WORD       8    /* Word - L plus N plus underscore */
1751    #define PT_CLIST      9    /* Pseudo-property: match character list */
1752    
1753  /* Flag bits and data types for the extended class (OP_XCLASS) for classes that  /* Flag bits and data types for the extended class (OP_XCLASS) for classes that
1754  contain UTF-8 characters with values greater than 255. */  contain characters with values greater than 255. */
1755    
1756  #define XCL_NOT    0x01    /* Flag: this is a negative class */  #define XCL_NOT    0x01    /* Flag: this is a negative class */
1757  #define XCL_MAP    0x02    /* Flag: a 32-byte map is present */  #define XCL_MAP    0x02    /* Flag: a 32-byte map is present */
# Line 1251  contain UTF-8 characters with values gre Line 1764  contain UTF-8 characters with values gre
1764    
1765  /* These are escaped items that aren't just an encoding of a particular data  /* These are escaped items that aren't just an encoding of a particular data
1766  value such as \n. They must have non-zero values, as check_escape() returns  value such as \n. They must have non-zero values, as check_escape() returns
1767  their negation. Also, they must appear in the same order as in the opcode  0 for a data character.  Also, they must appear in the same order as in the opcode
1768  definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it  definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1769  corresponds to "." in DOTALL mode rather than an escape sequence. It is also  corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1770  used for [^] in JavaScript compatibility mode. In non-DOTALL mode, "." behaves  used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
1771  like \N.  non-DOTALL mode, "." behaves like \N.
1772    
1773  The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.  The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1774  when PCRE_UCP is set, when replacement of \d etc by \p sequences is required.  when PCRE_UCP is set and replacement of \d etc by \p sequences is required.
1775  They must be contiguous, and remain in order so that the replacements can be  They must be contiguous, and remain in order so that the replacements can be
1776  looked up from a table.  looked up from a table.
1777    
1778  The final escape must be ESC_REF as subsequent values are used for  Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in
1779  backreferences (\1, \2, \3, etc). There are two tests in the code for an escape  check_escape(). There are two tests in the code for an escape
1780  greater than ESC_b and less than ESC_Z to detect the types that may be  greater than ESC_b and less than ESC_Z to detect the types that may be
1781  repeated. These are the types that consume characters. If any new escapes are  repeated. These are the types that consume characters. If any new escapes are
1782  put in between that don't consume a character, that code will have to change.  put in between that don't consume a character, that code will have to change.
# Line 1273  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, E Line 1786  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, E
1786         ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,         ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1787         ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,         ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1788         ESC_E, ESC_Q, ESC_g, ESC_k,         ESC_E, ESC_Q, ESC_g, ESC_k,
1789         ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu,         ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu };
        ESC_REF };  
1790    
1791  /* Opcode table: Starting from 1 (i.e. after OP_END), the values up to  /* Opcode table: Starting from 1 (i.e. after OP_END), the values up to
1792  OP_EOD must correspond in order to the list of escapes immediately above.  OP_EOD must correspond in order to the list of escapes immediately above.
# Line 1299  enum { Line 1811  enum {
1811    OP_WHITESPACE,         /*  9 \s */    OP_WHITESPACE,         /*  9 \s */
1812    OP_NOT_WORDCHAR,       /* 10 \W */    OP_NOT_WORDCHAR,       /* 10 \W */
1813    OP_WORDCHAR,           /* 11 \w */    OP_WORDCHAR,           /* 11 \w */
1814    OP_ANY,            /* 12 Match any character except newline */  
1815      OP_ANY,            /* 12 Match any character except newline (\N) */
1816    OP_ALLANY,         /* 13 Match any character */    OP_ALLANY,         /* 13 Match any character */
1817    OP_ANYBYTE,        /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */    OP_ANYBYTE,        /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1818    OP_NOTPROP,        /* 15 \P (not Unicode property) */    OP_NOTPROP,        /* 15 \P (not Unicode property) */
# Line 1310  enum { Line 1823  enum {
1823    OP_NOT_VSPACE,     /* 20 \V (not vertical whitespace) */    OP_NOT_VSPACE,     /* 20 \V (not vertical whitespace) */
1824    OP_VSPACE,         /* 21 \v (vertical whitespace) */    OP_VSPACE,         /* 21 \v (vertical whitespace) */
1825    OP_EXTUNI,         /* 22 \X (extended Unicode sequence */    OP_EXTUNI,         /* 22 \X (extended Unicode sequence */
1826    OP_EODN,           /* 23 End of data or \n at end of data: \Z. */    OP_EODN,           /* 23 End of data or \n at end of data (\Z) */
1827    OP_EOD,            /* 24 End of data: \z */    OP_EOD,            /* 24 End of data (\z) */
1828    
1829    OP_OPT,            /* 25 Set runtime options */    OP_CIRC,           /* 25 Start of line - not multiline */
1830    OP_CIRC,           /* 26 Start of line - varies with multiline switch */    OP_CIRCM,          /* 26 Start of line - multiline */
1831    OP_DOLL,           /* 27 End of line - varies with multiline switch */    OP_DOLL,           /* 27 End of line - not multiline */
1832    OP_CHAR,           /* 28 Match one character, casefully */    OP_DOLLM,          /* 28 End of line - multiline */
1833    OP_CHARNC,         /* 29 Match one character, caselessly */    OP_CHAR,           /* 29 Match one character, casefully */
1834    OP_NOT,            /* 30 Match one character, not the following one */    OP_CHARI,          /* 30 Match one character, caselessly */
1835      OP_NOT,            /* 31 Match one character, not the given one, casefully */
1836    OP_STAR,           /* 31 The maximizing and minimizing versions of */    OP_NOTI,           /* 32 Match one character, not the given one, caselessly */
1837    OP_MINSTAR,        /* 32 these six opcodes must come in pairs, with */  
1838    OP_PLUS,           /* 33 the minimizing one second. */    /* The following sets of 13 opcodes must always be kept in step because
1839    OP_MINPLUS,        /* 34 This first set applies to single characters.*/    the offset from the first one is used to generate the others. */
1840    OP_QUERY,          /* 35 */  
1841    OP_MINQUERY,       /* 36 */    /**** Single characters, caseful, must precede the caseless ones ****/
1842    
1843    OP_UPTO,           /* 37 From 0 to n matches */    OP_STAR,           /* 33 The maximizing and minimizing versions of */
1844    OP_MINUPTO,        /* 38 */    OP_MINSTAR,        /* 34 these six opcodes must come in pairs, with */
1845    OP_EXACT,          /* 39 Exactly n matches */    OP_PLUS,           /* 35 the minimizing one second. */
1846      OP_MINPLUS,        /* 36 */
1847    OP_POSSTAR,        /* 40 Possessified star */    OP_QUERY,          /* 37 */
1848    OP_POSPLUS,        /* 41 Possessified plus */    OP_MINQUERY,       /* 38 */
1849    OP_POSQUERY,       /* 42 Posesssified query */  
1850    OP_POSUPTO,        /* 43 Possessified upto */    OP_UPTO,           /* 39 From 0 to n matches of one character, caseful*/
1851      OP_MINUPTO,        /* 40 */
1852    OP_NOTSTAR,        /* 44 The maximizing and minimizing versions of */    OP_EXACT,          /* 41 Exactly n matches */
1853    OP_NOTMINSTAR,     /* 45 these six opcodes must come in pairs, with */  
1854    OP_NOTPLUS,        /* 46 the minimizing one second. They must be in */    OP_POSSTAR,        /* 42 Possessified star, caseful */
1855    OP_NOTMINPLUS,     /* 47 exactly the same order as those above. */    OP_POSPLUS,        /* 43 Possessified plus, caseful */
1856    OP_NOTQUERY,       /* 48 This set applies to "not" single characters. */    OP_POSQUERY,       /* 44 Posesssified query, caseful */
1857    OP_NOTMINQUERY,    /* 49 */    OP_POSUPTO,        /* 45 Possessified upto, caseful */
1858    
1859    OP_NOTUPTO,        /* 50 From 0 to n matches */    /**** Single characters, caseless, must follow the caseful ones */
1860    OP_NOTMINUPTO,     /* 51 */  
1861    OP_NOTEXACT,       /* 52 Exactly n matches */    OP_STARI,          /* 46 */
1862      OP_MINSTARI,       /* 47 */
1863    OP_NOTPOSSTAR,     /* 53 Possessified versions */    OP_PLUSI,          /* 48 */
1864    OP_NOTPOSPLUS,     /* 54 */    OP_MINPLUSI,       /* 49 */
1865    OP_NOTPOSQUERY,    /* 55 */    OP_QUERYI,         /* 50 */
1866    OP_NOTPOSUPTO,     /* 56 */    OP_MINQUERYI,      /* 51 */
1867    
1868    OP_TYPESTAR,       /* 57 The maximizing and minimizing versions of */    OP_UPTOI,          /* 52 From 0 to n matches of one character, caseless */
1869    OP_TYPEMINSTAR,    /* 58 these six opcodes must come in pairs, with */    OP_MINUPTOI,       /* 53 */
1870    OP_TYPEPLUS,       /* 59 the minimizing one second. These codes must */    OP_EXACTI,         /* 54 */
1871    OP_TYPEMINPLUS,    /* 60 be in exactly the same order as those above. */  
1872    OP_TYPEQUERY,      /* 61 This set applies to character types such as \d */    OP_POSSTARI,       /* 55 Possessified star, caseless */
1873    OP_TYPEMINQUERY,   /* 62 */    OP_POSPLUSI,       /* 56 Possessified plus, caseless */
1874      OP_POSQUERYI,      /* 57 Posesssified query, caseless */
1875    OP_TYPEUPTO,       /* 63 From 0 to n matches */    OP_POSUPTOI,       /* 58 Possessified upto, caseless */
1876    OP_TYPEMINUPTO,    /* 64 */  
1877    OP_TYPEEXACT,      /* 65 Exactly n matches */    /**** The negated ones must follow the non-negated ones, and match them ****/
1878      /**** Negated single character, caseful; must precede the caseless ones ****/
1879    OP_TYPEPOSSTAR,    /* 66 Possessified versions */  
1880    OP_TYPEPOSPLUS,    /* 67 */    OP_NOTSTAR,        /* 59 The maximizing and minimizing versions of */
1881    OP_TYPEPOSQUERY,   /* 68 */    OP_NOTMINSTAR,     /* 60 these six opcodes must come in pairs, with */
1882    OP_TYPEPOSUPTO,    /* 69 */    OP_NOTPLUS,        /* 61 the minimizing one second. They must be in */
1883      OP_NOTMINPLUS,     /* 62 exactly the same order as those above. */
1884    OP_CRSTAR,         /* 70 The maximizing and minimizing versions of */    OP_NOTQUERY,       /* 63 */
1885    OP_CRMINSTAR,      /* 71 all these opcodes must come in pairs, with */    OP_NOTMINQUERY,    /* 64 */
1886    OP_CRPLUS,         /* 72 the minimizing one second. These codes must */  
1887    OP_CRMINPLUS,      /* 73 be in exactly the same order as those above. */    OP_NOTUPTO,        /* 65 From 0 to n matches, caseful */
1888    OP_CRQUERY,        /* 74 These are for character classes and back refs */    OP_NOTMINUPTO,     /* 66 */
1889    OP_CRMINQUERY,     /* 75 */    OP_NOTEXACT,       /* 67 Exactly n matches */
1890    OP_CRRANGE,        /* 76 These are different to the three sets above. */  
1891    OP_CRMINRANGE,     /* 77 */    OP_NOTPOSSTAR,     /* 68 Possessified versions, caseful */
1892      OP_NOTPOSPLUS,     /* 69 */
1893    OP_CLASS,          /* 78 Match a character class, chars < 256 only */    OP_NOTPOSQUERY,    /* 70 */
1894    OP_NCLASS,         /* 79 Same, but the bitmap was created from a negative    OP_NOTPOSUPTO,     /* 71 */
1895                             class - the difference is relevant only when a UTF-8  
1896                             character > 255 is encountered. */    /**** Negated single character, caseless; must follow the caseful ones ****/
1897    
1898    OP_XCLASS,         /* 80 Extended class for handling UTF-8 chars within the    OP_NOTSTARI,       /* 72 */
1899                             class. This does both positive and negative. */    OP_NOTMINSTARI,    /* 73 */
1900      OP_NOTPLUSI,       /* 74 */
1901    OP_REF,            /* 81 Match a back reference */    OP_NOTMINPLUSI,    /* 75 */
1902    OP_RECURSE,        /* 82 Match a numbered subpattern (possibly recursive) */    OP_NOTQUERYI,      /* 76 */
1903    OP_CALLOUT,        /* 83 Call out to external function if provided */    OP_NOTMINQUERYI,   /* 77 */
1904    
1905    OP_ALT,            /* 84 Start of alternation */    OP_NOTUPTOI,       /* 78 From 0 to n matches, caseless */
1906    OP_KET,            /* 85 End of group that doesn't have an unbounded repeat */    OP_NOTMINUPTOI,    /* 79 */
1907    OP_KETRMAX,        /* 86 These two must remain together and in this */    OP_NOTEXACTI,      /* 80 Exactly n matches */
1908    OP_KETRMIN,        /* 87 order. They are for groups the repeat for ever. */  
1909      OP_NOTPOSSTARI,    /* 81 Possessified versions, caseless */
1910    /* The assertions must come before BRA, CBRA, ONCE, and COND.*/    OP_NOTPOSPLUSI,    /* 82 */
1911      OP_NOTPOSQUERYI,   /* 83 */
1912    OP_ASSERT,         /* 88 Positive lookahead */    OP_NOTPOSUPTOI,    /* 84 */
1913    OP_ASSERT_NOT,     /* 89 Negative lookahead */  
1914    OP_ASSERTBACK,     /* 90 Positive lookbehind */    /**** Character types ****/
1915    OP_ASSERTBACK_NOT, /* 91 Negative lookbehind */  
1916    OP_REVERSE,        /* 92 Move pointer back - used in lookbehind assertions */    OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */
1917      OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */
1918    /* ONCE, BRA, CBRA, and COND must come after the assertions, with ONCE first,    OP_TYPEPLUS,       /* 87 the minimizing one second. These codes must */
1919    as there's a test for >= ONCE for a subpattern that isn't an assertion. */    OP_TYPEMINPLUS,    /* 88 be in exactly the same order as those above. */
1920      OP_TYPEQUERY,      /* 89 */
1921    OP_ONCE,           /* 93 Atomic group */    OP_TYPEMINQUERY,   /* 90 */
1922    OP_BRA,            /* 94 Start of non-capturing bracket */  
1923    OP_CBRA,           /* 95 Start of capturing bracket */    OP_TYPEUPTO,       /* 91 From 0 to n matches */
1924    OP_COND,           /* 96 Conditional group */    OP_TYPEMINUPTO,    /* 92 */
1925      OP_TYPEEXACT,      /* 93 Exactly n matches */
1926    
1927      OP_TYPEPOSSTAR,    /* 94 Possessified versions */
1928      OP_TYPEPOSPLUS,    /* 95 */
1929      OP_TYPEPOSQUERY,   /* 96 */
1930      OP_TYPEPOSUPTO,    /* 97 */
1931    
1932      /* These are used for character classes and back references; only the
1933      first six are the same as the sets above. */
1934    
1935      OP_CRSTAR,         /* 98 The maximizing and minimizing versions of */
1936      OP_CRMINSTAR,      /* 99 all these opcodes must come in pairs, with */
1937      OP_CRPLUS,         /* 100 the minimizing one second. These codes must */
1938      OP_CRMINPLUS,      /* 101 be in exactly the same order as those above. */
1939      OP_CRQUERY,        /* 102 */
1940      OP_CRMINQUERY,     /* 103 */
1941    
1942      OP_CRRANGE,        /* 104 These are different to the three sets above. */
1943      OP_CRMINRANGE,     /* 105 */
1944    
1945      /* End of quantifier opcodes */
1946    
1947      OP_CLASS,          /* 106 Match a character class, chars < 256 only */
1948      OP_NCLASS,         /* 107 Same, but the bitmap was created from a negative
1949                                  class - the difference is relevant only when a
1950                                  character > 255 is encountered. */
1951      OP_XCLASS,         /* 108 Extended class for handling > 255 chars within the
1952                                  class. This does both positive and negative. */
1953      OP_REF,            /* 109 Match a back reference, casefully */
1954      OP_REFI,           /* 110 Match a back reference, caselessly */
1955      OP_RECURSE,        /* 111 Match a numbered subpattern (possibly recursive) */
1956      OP_CALLOUT,        /* 112 Call out to external function if provided */
1957    
1958      OP_ALT,            /* 113 Start of alternation */
1959      OP_KET,            /* 114 End of group that doesn't have an unbounded repeat */
1960      OP_KETRMAX,        /* 115 These two must remain together and in this */
1961      OP_KETRMIN,        /* 116 order. They are for groups the repeat for ever. */
1962      OP_KETRPOS,        /* 117 Possessive unlimited repeat. */
1963    
1964      /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
1965      asserts must remain in order. */
1966    
1967      OP_REVERSE,        /* 118 Move pointer back - used in lookbehind assertions */
1968      OP_ASSERT,         /* 119 Positive lookahead */
1969      OP_ASSERT_NOT,     /* 120 Negative lookahead */
1970      OP_ASSERTBACK,     /* 121 Positive lookbehind */
1971      OP_ASSERTBACK_NOT, /* 122 Negative lookbehind */
1972    
1973      /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
1974      after the assertions, with ONCE first, as there's a test for >= ONCE for a
1975      subpattern that isn't an assertion. The POS versions must immediately follow
1976      the non-POS versions in each case. */
1977    
1978      OP_ONCE,           /* 123 Atomic group, contains captures */
1979      OP_ONCE_NC,        /* 124 Atomic group containing no captures */
1980      OP_BRA,            /* 125 Start of non-capturing bracket */
1981      OP_BRAPOS,         /* 126 Ditto, with unlimited, possessive repeat */
1982      OP_CBRA,           /* 127 Start of capturing bracket */
1983      OP_CBRAPOS,        /* 128 Ditto, with unlimited, possessive repeat */
1984      OP_COND,           /* 129 Conditional group */
1985    
1986    /* These three must follow the previous three, in the same order. There's a    /* These five must follow the previous five, in the same order. There's a
1987    check for >= SBRA to distinguish the two sets. */    check for >= SBRA to distinguish the two sets. */
1988    
1989    OP_SBRA,           /* 97 Start of non-capturing bracket, check empty  */    OP_SBRA,           /* 130 Start of non-capturing bracket, check empty  */
1990    OP_SCBRA,          /* 98 Start of capturing bracket, check empty */    OP_SBRAPOS,        /* 131 Ditto, with unlimited, possessive repeat */
1991    OP_SCOND,          /* 99 Conditional group, check empty */    OP_SCBRA,          /* 132 Start of capturing bracket, check empty */
1992      OP_SCBRAPOS,       /* 133 Ditto, with unlimited, possessive repeat */
1993      OP_SCOND,          /* 134 Conditional group, check empty */
1994    
1995    /* The next two pairs must (respectively) be kept together. */    /* The next two pairs must (respectively) be kept together. */
1996    
1997    OP_CREF,           /* 100 Used to hold a capture number as condition */    OP_CREF,           /* 135 Used to hold a capture number as condition */
1998    OP_NCREF,          /* 101 Same, but generaged by a name reference*/    OP_NCREF,          /* 136 Same, but generated by a name reference*/
1999    OP_RREF,           /* 102 Used to hold a recursion number as condition */    OP_RREF,           /* 137 Used to hold a recursion number as condition */
2000    OP_NRREF,          /* 103 Same, but generaged by a name reference*/    OP_NRREF,          /* 138 Same, but generated by a name reference*/
2001    OP_DEF,            /* 104 The DEFINE condition */    OP_DEF,            /* 139 The DEFINE condition */
2002    
2003    OP_BRAZERO,        /* 105 These two must remain together and in this */    OP_BRAZERO,        /* 140 These two must remain together and in this */
2004    OP_BRAMINZERO,     /* 106 order. */    OP_BRAMINZERO,     /* 141 order. */
2005      OP_BRAPOSZERO,     /* 142 */
2006    
2007    /* These are backtracking control verbs */    /* These are backtracking control verbs */
2008    
2009    OP_MARK,           /* 107 always has an argument */    OP_MARK,           /* 143 always has an argument */
2010    OP_PRUNE,          /* 108 */    OP_PRUNE,          /* 144 */
2011    OP_PRUNE_ARG,      /* 109 same, but with argument */    OP_PRUNE_ARG,      /* 145 same, but with argument */
2012    OP_SKIP,           /* 110 */    OP_SKIP,           /* 146 */
2013    OP_SKIP_ARG,       /* 111 same, but with argument */    OP_SKIP_ARG,       /* 147 same, but with argument */
2014    OP_THEN,           /* 112 */    OP_THEN,           /* 148 */
2015    OP_THEN_ARG,       /* 113 same, but with argument */    OP_THEN_ARG,       /* 149 same, but with argument */
2016    OP_COMMIT,         /* 114 */    OP_COMMIT,         /* 150 */
2017    
2018    /* These are forced failure and success verbs */    /* These are forced failure and success verbs */
2019    
2020    OP_FAIL,           /* 115 */    OP_FAIL,           /* 151 */
2021    OP_ACCEPT,         /* 116 */    OP_ACCEPT,         /* 152 */
2022    OP_CLOSE,          /* 117 Used before OP_ACCEPT to close open captures */    OP_ASSERT_ACCEPT,  /* 153 Used inside assertions */
2023      OP_CLOSE,          /* 154 Used before OP_ACCEPT to close open captures */
2024    
2025    /* This is used to skip a subpattern with a {0} quantifier */    /* This is used to skip a subpattern with a {0} quantifier */
2026    
2027    OP_SKIPZERO,       /* 118 */    OP_SKIPZERO,       /* 155 */
2028    
2029    /* This is not an opcode, but is used to check that tables indexed by opcode    /* This is not an opcode, but is used to check that tables indexed by opcode
2030    are the correct length, in order to catch updating errors - there have been    are the correct length, in order to catch updating errors - there have been
# Line 1462  called "coptable" and "poptable" in pcre Line 2039  called "coptable" and "poptable" in pcre
2039    
2040    
2041  /* This macro defines textual names for all the opcodes. These are used only  /* This macro defines textual names for all the opcodes. These are used only
2042  for debugging. The macro is referenced only in pcre_printint.c. */  for debugging, and some of them are only partial names. The macro is referenced
2043    only in pcre_printint.c, which fills out the full names in many cases (and in
2044    some cases doesn't actually use these names at all). */
2045    
2046  #define OP_NAME_LIST \  #define OP_NAME_LIST \
2047    "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \    "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \
2048    "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \    "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \
2049    "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \    "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \
2050    "extuni",  "\\Z", "\\z",                                        \    "extuni",  "\\Z", "\\z",                                        \
2051    "Opt", "^", "$", "char", "charnc", "not",                       \    "^", "^", "$", "$", "char", "chari", "not", "noti",             \
2052    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??",                                \
2053      "{", "{", "{",                                                  \
2054    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
2055    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??",                                \
2056      "{", "{", "{",                                                  \
2057      "*+","++", "?+", "{",                                           \
2058      "*", "*?", "+", "+?", "?", "??",                                \
2059      "{", "{", "{",                                                  \
2060      "*+","++", "?+", "{",                                           \
2061      "*", "*?", "+", "+?", "?", "??",                                \
2062      "{", "{", "{",                                                  \
2063    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
2064    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
2065    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
2066    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \
2067    "class", "nclass", "xclass", "Ref", "Recurse", "Callout",       \    "class", "nclass", "xclass", "Ref", "Refi",                     \
2068    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \    "Recurse", "Callout",                                           \
2069    "AssertB", "AssertB not", "Reverse",                            \    "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos",                  \
2070    "Once", "Bra", "CBra", "Cond", "SBra", "SCBra", "SCond",        \    "Reverse", "Assert", "Assert not", "AssertB", "AssertB not",    \
2071      "Once", "Once_NC",                                              \
2072      "Bra", "BraPos", "CBra", "CBraPos",                             \
2073      "Cond",                                                         \
2074      "SBra", "SBraPos", "SCBra", "SCBraPos",                         \
2075      "SCond",                                                        \
2076    "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def",   \    "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def",   \
2077    "Brazero", "Braminzero",                                        \    "Brazero", "Braminzero", "Braposzero",                          \
2078    "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \    "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \
2079    "*THEN", "*THEN", "*COMMIT", "*FAIL", "*ACCEPT",                \    "*THEN", "*THEN", "*COMMIT", "*FAIL",                           \
2080      "*ACCEPT", "*ASSERT_ACCEPT",                                    \
2081    "Close", "Skip zero"    "Close", "Skip zero"
2082    
2083    
# Line 1505  in UTF-8 mode. The code that uses this t Line 2098  in UTF-8 mode. The code that uses this t
2098    3, 3,                          /* \P, \p                                 */ \    3, 3,                          /* \P, \p                                 */ \
2099    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
2100    1,                             /* \X                                     */ \    1,                             /* \X                                     */ \
2101    1, 1, 2, 1, 1,                 /* \Z, \z, Opt, ^, $                      */ \    1, 1, 1, 1, 1, 1,              /* \Z, \z, ^, ^M, $, $M                   */ \
2102    2,                             /* Char  - the minimum length             */ \    2,                             /* Char  - the minimum length             */ \
2103    2,                             /* Charnc  - the minimum length           */ \    2,                             /* Chari  - the minimum length            */ \
2104    2,                             /* not                                    */ \    2,                             /* not                                    */ \
2105    /* Positive single-char repeats                            ** These are  */ \    2,                             /* noti                                   */ \
2106    2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??      ** minima in  */ \    /* Positive single-char repeats                             ** These are */ \
2107    4, 4, 4,                       /* upto, minupto, exact     ** UTF-8 mode */ \    2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??       ** minima in */ \
2108    2, 2, 2, 4,                    /* *+, ++, ?+, upto+                      */ \    2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto, minupto             ** mode      */ \
2109      2+IMM2_SIZE,                   /* exact                                  */ \
2110      2, 2, 2, 2+IMM2_SIZE,          /* *+, ++, ?+, upto+                      */ \
2111      2, 2, 2, 2, 2, 2,              /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8     */ \
2112      2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto I, minupto I                      */ \
2113      2+IMM2_SIZE,                   /* exact I                                */ \
2114      2, 2, 2, 2+IMM2_SIZE,          /* *+I, ++I, ?+I, upto+I                  */ \
2115    /* Negative single-char repeats - only for chars < 256                   */ \    /* Negative single-char repeats - only for chars < 256                   */ \
2116    2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \    2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \
2117    4, 4, 4,                       /* NOT upto, minupto, exact               */ \    2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto, minupto                      */ \
2118    2, 2, 2, 4,                    /* Possessive *, +, ?, upto               */ \    2+IMM2_SIZE,                   /* NOT exact                              */ \
2119      2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *, +, ?, upto           */ \
2120      2, 2, 2, 2, 2, 2,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */ \
2121      2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto I, minupto I                  */ \
2122      2+IMM2_SIZE,                   /* NOT exact I                            */ \
2123      2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *I, +I, ?I, upto I      */ \
2124    /* Positive type repeats                                                 */ \    /* Positive type repeats                                                 */ \
2125    2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \    2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \
2126    4, 4, 4,                       /* Type upto, minupto, exact              */ \    2+IMM2_SIZE, 2+IMM2_SIZE,      /* Type upto, minupto                     */ \
2127    2, 2, 2, 4,                    /* Possessive *+, ++, ?+, upto+           */ \    2+IMM2_SIZE,                   /* Type exact                             */ \
2128      2, 2, 2, 2+IMM2_SIZE,          /* Possessive *+, ++, ?+, upto+           */ \
2129    /* Character class & ref repeats                                         */ \    /* Character class & ref repeats                                         */ \
2130    1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \    1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \
2131    5, 5,                          /* CRRANGE, CRMINRANGE                    */ \    1+2*IMM2_SIZE, 1+2*IMM2_SIZE,  /* CRRANGE, CRMINRANGE                    */ \
2132   33,                             /* CLASS                                  */ \    1+(32/sizeof(pcre_uchar)),     /* CLASS                                  */ \
2133   33,                             /* NCLASS                                 */ \    1+(32/sizeof(pcre_uchar)),     /* NCLASS                                 */ \
2134    0,                             /* XCLASS - variable length               */ \    0,                             /* XCLASS - variable length               */ \
2135    3,                             /* REF                                    */ \    1+IMM2_SIZE,                   /* REF                                    */ \
2136      1+IMM2_SIZE,                   /* REFI                                   */ \
2137    1+LINK_SIZE,                   /* RECURSE                                */ \    1+LINK_SIZE,                   /* RECURSE                                */ \
2138    2+2*LINK_SIZE,                 /* CALLOUT                                */ \    2+2*LINK_SIZE,                 /* CALLOUT                                */ \
2139    1+LINK_SIZE,                   /* Alt                                    */ \    1+LINK_SIZE,                   /* Alt                                    */ \
2140    1+LINK_SIZE,                   /* Ket                                    */ \    1+LINK_SIZE,                   /* Ket                                    */ \
2141    1+LINK_SIZE,                   /* KetRmax                                */ \    1+LINK_SIZE,                   /* KetRmax                                */ \
2142    1+LINK_SIZE,                   /* KetRmin                                */ \    1+LINK_SIZE,                   /* KetRmin                                */ \
2143      1+LINK_SIZE,                   /* KetRpos                                */ \
2144      1+LINK_SIZE,                   /* Reverse                                */ \
2145    1+LINK_SIZE,                   /* Assert                                 */ \    1+LINK_SIZE,                   /* Assert                                 */ \
2146    1+LINK_SIZE,                   /* Assert not                             */ \    1+LINK_SIZE,                   /* Assert not                             */ \
2147    1+LINK_SIZE,                   /* Assert behind                          */ \    1+LINK_SIZE,                   /* Assert behind                          */ \
2148    1+LINK_SIZE,                   /* Assert behind not                      */ \    1+LINK_SIZE,                   /* Assert behind not                      */ \
   1+LINK_SIZE,                   /* Reverse                                */ \  
2149    1+LINK_SIZE,                   /* ONCE                                   */ \    1+LINK_SIZE,                   /* ONCE                                   */ \
2150      1+LINK_SIZE,                   /* ONCE_NC                                */ \
2151    1+LINK_SIZE,                   /* BRA                                    */ \    1+LINK_SIZE,                   /* BRA                                    */ \
2152    3+LINK_SIZE,                   /* CBRA                                   */ \    1+LINK_SIZE,                   /* BRAPOS                                 */ \
2153      1+LINK_SIZE+IMM2_SIZE,         /* CBRA                                   */ \
2154      1+LINK_SIZE+IMM2_SIZE,         /* CBRAPOS                                */ \
2155    1+LINK_SIZE,                   /* COND                                   */ \    1+LINK_SIZE,                   /* COND                                   */ \
2156    1+LINK_SIZE,                   /* SBRA                                   */ \    1+LINK_SIZE,                   /* SBRA                                   */ \
2157    3+LINK_SIZE,                   /* SCBRA                                  */ \    1+LINK_SIZE,                   /* SBRAPOS                                */ \
2158      1+LINK_SIZE+IMM2_SIZE,         /* SCBRA                                  */ \
2159      1+LINK_SIZE+IMM2_SIZE,         /* SCBRAPOS                               */ \
2160    1+LINK_SIZE,                   /* SCOND                                  */ \    1+LINK_SIZE,                   /* SCOND                                  */ \
2161    3, 3,                          /* CREF, NCREF                            */ \    1+IMM2_SIZE, 1+IMM2_SIZE,      /* CREF, NCREF                            */ \
2162    3, 3,                          /* RREF, NRREF                            */ \    1+IMM2_SIZE, 1+IMM2_SIZE,      /* RREF, NRREF                            */ \
2163    1,                             /* DEF                                    */ \    1,                             /* DEF                                    */ \
2164    1, 1,                          /* BRAZERO, BRAMINZERO                    */ \    1, 1, 1,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */ \
2165    3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \    3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \
2166    1, 3,                          /* SKIP, SKIP_ARG                         */ \    1, 3,                          /* SKIP, SKIP_ARG                         */ \
2167    1+LINK_SIZE, 3+LINK_SIZE,      /* THEN, THEN_ARG                         */ \    1, 3,                          /* THEN, THEN_ARG                         */ \
2168    1, 1, 1, 3, 1                  /* COMMIT, FAIL, ACCEPT, CLOSE, SKIPZERO  */    1, 1, 1, 1,                    /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT    */ \
2169      1+IMM2_SIZE, 1                 /* CLOSE, SKIPZERO                        */
2170    
2171  /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"  /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
2172  condition. */  condition. */
# Line 1571  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4, Line 2183  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,
2183         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
2184         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
2185         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
2186         ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68,         ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
2187         ERRCOUNT };         ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERRCOUNT };
2188    
2189    /* JIT compiling modes. The function list is indexed by them. */
2190    enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
2191           JIT_NUMBER_OF_COMPILE_MODES };
2192    
2193  /* The real format of the start of the pcre block; the index of names and the  /* The real format of the start of the pcre block; the index of names and the
2194  code vector run on as long as necessary after the end. We store an explicit  code vector run on as long as necessary after the end. We store an explicit
# Line 1591  fields are present. Currently PCRE alway Line 2207  fields are present. Currently PCRE alway
2207  NOTE NOTE NOTE  NOTE NOTE NOTE
2208  */  */
2209    
2210  typedef struct real_pcre {  #if defined COMPILE_PCRE8
2211    #define REAL_PCRE real_pcre
2212    #elif defined COMPILE_PCRE16
2213    #define REAL_PCRE real_pcre16
2214    #elif defined COMPILE_PCRE32
2215    #define REAL_PCRE real_pcre32
2216    #endif
2217    
2218    /* It is necessary to fork the struct for 32 bit, since it needs to use
2219     * pcre_uchar for first_char and req_char. Can't put an ifdef inside the
2220     * typedef since pcretest needs access to  the struct of the 8-, 16-
2221     * and 32-bit variants. */
2222    
2223    typedef struct real_pcre8_or_16 {
2224    pcre_uint32 magic_number;    pcre_uint32 magic_number;
2225    pcre_uint32 size;               /* Total that was malloced */    pcre_uint32 size;               /* Total that was malloced */
2226    pcre_uint32 options;            /* Public options */    pcre_uint32 options;            /* Public options */
2227    pcre_uint16 flags;              /* Private flags */    pcre_uint16 flags;              /* Private flags */
2228    pcre_uint16 dummy1;             /* For future use */    pcre_uint16 max_lookbehind;     /* Longest lookbehind (characters) */
2229    pcre_uint16 top_bracket;    pcre_uint16 top_bracket;        /* Highest numbered group */
2230    pcre_uint16 top_backref;    pcre_uint16 top_backref;        /* Highest numbered back reference */
2231    pcre_uint16 first_byte;    pcre_uint16 first_char;         /* Starting character */
2232    pcre_uint16 req_byte;    pcre_uint16 req_char;           /* This character must be seen */
2233    pcre_uint16 name_table_offset;  /* Offset to name table that follows */    pcre_uint16 name_table_offset;  /* Offset to name table that follows */
2234    pcre_uint16 name_entry_size;    /* Size of any name items */    pcre_uint16 name_entry_size;    /* Size of any name items */
2235    pcre_uint16 name_count;         /* Number of name items */    pcre_uint16 name_count;         /* Number of name items */
2236    pcre_uint16 ref_count;          /* Reference count */    pcre_uint16 ref_count;          /* Reference count */
2237      const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */
2238      const pcre_uint8 *nullpad;      /* NULL padding */
2239    } real_pcre8_or_16;
2240    
2241    typedef struct real_pcre8_or_16 real_pcre;
2242    typedef struct real_pcre8_or_16 real_pcre16;
2243    
2244    const unsigned char *tables;    /* Pointer to tables or NULL for std */  typedef struct real_pcre32 {
2245    const unsigned char *nullpad;   /* NULL padding */    pcre_uint32 magic_number;
2246  } real_pcre;    pcre_uint32 size;               /* Total that was malloced */
2247      pcre_uint32 options;            /* Public options */
2248      pcre_uint16 flags;              /* Private flags */
2249      pcre_uint16 max_lookbehind;     /* Longest lookbehind (characters) */
2250      pcre_uint16 top_bracket;        /* Highest numbered group */
2251      pcre_uint16 top_backref;        /* Highest numbered back reference */
2252      pcre_uint32 first_char;         /* Starting character */
2253      pcre_uint32 req_char;           /* This character must be seen */
2254      pcre_uint16 name_table_offset;  /* Offset to name table that follows */
2255      pcre_uint16 name_entry_size;    /* Size of any name items */
2256      pcre_uint16 name_count;         /* Number of name items */
2257      pcre_uint16 ref_count;          /* Reference count */
2258      pcre_uint16 dummy1;             /* for later expansion */
2259      pcre_uint16 dummy2;             /* for later expansion */
2260      const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */
2261      void *nullpad;                  /* for later expansion */
2262    } real_pcre32;
2263    
2264    /* Assert that the size of REAL_PCRE is divisible by 8 */
2265    typedef int __assert_real_pcre_size_divisible_8[(sizeof(REAL_PCRE) % 8) == 0 ? 1 : -1];
2266    
2267    /* Needed in pcretest to access some fields in the real_pcre* structures
2268     * directly. They're unified for 8/16/32 bits since the structs only differ
2269     * after these fields; if that ever changes, need to fork those defines into
2270     * 8/16 and 32 bit versions. */
2271    #define REAL_PCRE_MAGIC(re)     (((REAL_PCRE*)re)->magic_number)
2272    #define REAL_PCRE_SIZE(re)      (((REAL_PCRE*)re)->size)
2273    #define REAL_PCRE_OPTIONS(re)   (((REAL_PCRE*)re)->options)
2274    #define REAL_PCRE_FLAGS(re)     (((REAL_PCRE*)re)->flags)
2275    
2276  /* The format of the block used to store data from pcre_study(). The same  /* The format of the block used to store data from pcre_study(). The same
2277  remark (see NOTE above) about extending this structure applies. */  remark (see NOTE above) about extending this structure applies. */
# Line 1616  remark (see NOTE above) about extending Line 2279  remark (see NOTE above) about extending
2279  typedef struct pcre_study_data {  typedef struct pcre_study_data {
2280    pcre_uint32 size;               /* Total that was malloced */    pcre_uint32 size;               /* Total that was malloced */
2281    pcre_uint32 flags;              /* Private flags */    pcre_uint32 flags;              /* Private flags */
2282    uschar start_bits[32];          /* Starting char bits */    pcre_uint8 start_bits[32];      /* Starting char bits */
2283    pcre_uint32 minlength;          /* Minimum subject length */    pcre_uint32 minlength;          /* Minimum subject length */
2284  } pcre_study_data;  } pcre_study_data;
2285    
# Line 1635  typedef struct open_capitem { Line 2298  typedef struct open_capitem {
2298  doing the compiling, so that they are thread-safe. */  doing the compiling, so that they are thread-safe. */
2299    
2300  typedef struct compile_data {  typedef struct compile_data {
2301    const uschar *lcc;            /* Points to lower casing table */    const pcre_uint8 *lcc;            /* Points to lower casing table */
2302    const uschar *fcc;            /* Points to case-flipping table */    const pcre_uint8 *fcc;            /* Points to case-flipping table */
2303    const uschar *cbits;          /* Points to character type table */    const pcre_uint8 *cbits;          /* Points to character type table */
2304    const uschar *ctypes;         /* Points to table of type maps */    const pcre_uint8 *ctypes;         /* Points to table of type maps */
2305    const uschar *start_workspace;/* The start of working space */    const pcre_uchar *start_workspace;/* The start of working space */
2306    const uschar *start_code;     /* The start of the compiled code */    const pcre_uchar *start_code;     /* The start of the compiled code */
2307    const uschar *start_pattern;  /* The start of the pattern */    const pcre_uchar *start_pattern;  /* The start of the pattern */
2308    const uschar *end_pattern;    /* The end of the pattern */    const pcre_uchar *end_pattern;    /* The end of the pattern */
2309    open_capitem *open_caps;      /* Chain of open capture items */    open_capitem *open_caps;          /* Chain of open capture items */
2310    uschar *hwm;                  /* High watermark of workspace */    pcre_uchar *hwm;                  /* High watermark of workspace */
2311    uschar *name_table;           /* The name/number table */    pcre_uchar *name_table;           /* The name/number table */
2312    int  names_found;             /* Number of entries so far */    int  names_found;                 /* Number of entries so far */
2313    int  name_entry_size;         /* Size of each entry */    int  name_entry_size;             /* Size of each entry */
2314    int  bracount;                /* Count of capturing parens as we compile */    int  workspace_size;              /* Size of workspace */
2315    int  final_bracount;          /* Saved value after first pass */    int  bracount;                    /* Count of capturing parens as we compile */
2316    int  top_backref;             /* Maximum back reference */    int  final_bracount;              /* Saved value after first pass */
2317    unsigned int backref_map;     /* Bitmap of low back refs */    int  max_lookbehind;              /* Maximum lookbehind (characters) */
2318    int  external_options;        /* External (initial) options */    int  top_backref;                 /* Maximum back reference */
2319    int  external_flags;          /* External flag bits to be set */    unsigned int backref_map;         /* Bitmap of low back refs */
2320    int  req_varyopt;             /* "After variable item" flag for reqbyte */    int  assert_depth;                /* Depth of nested assertions */
2321    BOOL had_accept;              /* (*ACCEPT) encountered */    int  external_options;            /* External (initial) options */
2322    BOOL check_lookbehind;        /* Lookbehinds need later checking */    int  external_flags;              /* External flag bits to be set */
2323    int  nltype;                  /* Newline type */    int  req_varyopt;                 /* "After variable item" flag for reqbyte */
2324    int  nllen;                   /* Newline string length */    BOOL had_accept;                  /* (*ACCEPT) encountered */
2325    uschar nl[4];                 /* Newline string when fixed length */    BOOL had_pruneorskip;             /* (*PRUNE) or (*SKIP) encountered */
2326      BOOL check_lookbehind;            /* Lookbehinds need later checking */
2327      int  nltype;                      /* Newline type */
2328      int  nllen;                       /* Newline string length */
2329      pcre_uchar nl[4];                 /* Newline string when fixed length */
2330  } compile_data;  } compile_data;
2331    
2332  /* Structure for maintaining a chain of pointers to the currently incomplete  /* Structure for maintaining a chain of pointers to the currently incomplete
2333  branches, for testing for left recursion. */  branches, for testing for left recursion while compiling. */
2334    
2335  typedef struct branch_chain {  typedef struct branch_chain {
2336    struct branch_chain *outer;    struct branch_chain *outer;
2337    uschar *current_branch;    pcre_uchar *current_branch;
2338  } branch_chain;  } branch_chain;
2339    
2340  /* Structure for items in a linked list that represents an explicit recursive  /* Structure for items in a linked list that represents an explicit recursive
2341  call within the pattern. */  call within the pattern; used by pcre_exec(). */
2342    
2343  typedef struct recursion_info {  typedef struct recursion_info {
2344    struct recursion_info *prevrec; /* Previous recursion record (or NULL) */    struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
2345    int group_num;                /* Number of group that was called */    int group_num;                  /* Number of group that was called */
2346    const uschar *after_call;     /* "Return value": points after the call in the expr */    int *offset_save;               /* Pointer to start of saved offsets */
2347    int *offset_save;             /* Pointer to start of saved offsets */    int saved_max;                  /* Number of saved offsets */
2348    int saved_max;                /* Number of saved offsets */    PCRE_PUCHAR subject_position;   /* Position at start of recursion */
   int save_offset_top;          /* Current value of offset_top */  
2349  } recursion_info;  } recursion_info;
2350    
2351    /* A similar structure for pcre_dfa_exec(). */
2352    
2353    typedef struct dfa_recursion_info {
2354      struct dfa_recursion_info *prevrec;
2355      int group_num;
2356      PCRE_PUCHAR subject_position;
2357    } dfa_recursion_info;
2358    
2359  /* Structure for building a chain of data for holding the values of the subject  /* Structure for building a chain of data for holding the values of the subject
2360  pointer at the start of each subpattern, so as to detect when an empty string  pointer at the start of each subpattern, so as to detect when an empty string
2361  has been matched by a subpattern - to break infinite loops. */  has been matched by a subpattern - to break infinite loops; used by
2362    pcre_exec(). */
2363    
2364  typedef struct eptrblock {  typedef struct eptrblock {
2365    struct eptrblock *epb_prev;    struct eptrblock *epb_prev;
2366    USPTR epb_saved_eptr;    PCRE_PUCHAR epb_saved_eptr;
2367  } eptrblock;  } eptrblock;
2368    
2369    
# Line 1699  typedef struct match_data { Line 2374  typedef struct match_data {
2374    unsigned long int match_call_count;      /* As it says */    unsigned long int match_call_count;      /* As it says */
2375    unsigned long int match_limit;           /* As it says */    unsigned long int match_limit;           /* As it says */
2376    unsigned long int match_limit_recursion; /* As it says */    unsigned long int match_limit_recursion; /* As it says */
2377    int   *offset_vector;         /* Offset vector */    int   *offset_vector;           /* Offset vector */
2378    int    offset_end;            /* One past the end */    int    offset_end;              /* One past the end */
2379    int    offset_max;            /* The maximum usable for return data */    int    offset_max;              /* The maximum usable for return data */
2380    int    nltype;                /* Newline type */    int    nltype;                  /* Newline type */
2381    int    nllen;                 /* Newline string length */    int    nllen;                   /* Newline string length */
2382    int    name_count;            /* Number of names in name table */    int    name_count;              /* Number of names in name table */
2383    int    name_entry_size;       /* Size of entry in names table */    int    name_entry_size;         /* Size of entry in names table */
2384    uschar *name_table;           /* Table of names */    pcre_uchar *name_table;         /* Table of names */
2385    uschar nl[4];                 /* Newline string when fixed */    pcre_uchar nl[4];               /* Newline string when fixed */
2386    const uschar *lcc;            /* Points to lower casing table */    const  pcre_uint8 *lcc;         /* Points to lower casing table */
2387    const uschar *ctypes;         /* Points to table of type maps */    const  pcre_uint8 *fcc;         /* Points to case-flipping table */
2388    BOOL   offset_overflow;       /* Set if too many extractions */    const  pcre_uint8 *ctypes;      /* Points to table of type maps */
2389    BOOL   notbol;                /* NOTBOL flag */    BOOL   offset_overflow;         /* Set if too many extractions */
2390    BOOL   noteol;                /* NOTEOL flag */    BOOL   notbol;                  /* NOTBOL flag */
2391    BOOL   utf8;                  /* UTF8 flag */    BOOL   noteol;                  /* NOTEOL flag */
2392    BOOL   jscript_compat;        /* JAVASCRIPT_COMPAT flag */    BOOL   utf;                     /* UTF-8 / UTF-16 flag */
2393    BOOL   use_ucp;               /* PCRE_UCP flag */    BOOL   jscript_compat;          /* JAVASCRIPT_COMPAT flag */
2394    BOOL   endonly;               /* Dollar not before final \n */    BOOL   use_ucp;                 /* PCRE_UCP flag */
2395    BOOL   notempty;              /* Empty string match not wanted */    BOOL   endonly;                 /* Dollar not before final \n */
2396    BOOL   notempty_atstart;      /* Empty string match at start not wanted */    BOOL   notempty;                /* Empty string match not wanted */
2397    BOOL   hitend;                /* Hit the end of the subject at some point */    BOOL   notempty_atstart;        /* Empty string match at start not wanted */
2398    BOOL   bsr_anycrlf;           /* \R is just any CRLF, not full Unicode */    BOOL   hitend;                  /* Hit the end of the subject at some point */
2399    const uschar *start_code;     /* For use when recursing */    BOOL   bsr_anycrlf;             /* \R is just any CRLF, not full Unicode */
2400    USPTR  start_subject;         /* Start of the subject string */    BOOL   hasthen;                 /* Pattern contains (*THEN) */
2401    USPTR  end_subject;           /* End of the subject string */    BOOL   ignore_skip_arg;         /* For re-run when SKIP name not found */
2402    USPTR  start_match_ptr;       /* Start of matched string */    const  pcre_uchar *start_code;  /* For use when recursing */
2403    USPTR  end_match_ptr;         /* Subject position at end match */    PCRE_PUCHAR start_subject;      /* Start of the subject string */
2404    USPTR  start_used_ptr;        /* Earliest consulted character */    PCRE_PUCHAR end_subject;        /* End of the subject string */
2405    int    partial;               /* PARTIAL options */    PCRE_PUCHAR start_match_ptr;    /* Start of matched string */
2406    int    end_offset_top;        /* Highwater mark at end of match */    PCRE_PUCHAR end_match_ptr;      /* Subject position at end match */
2407    int    capture_last;          /* Most recent capture number */    PCRE_PUCHAR start_used_ptr;     /* Earliest consulted character */
2408    int    start_offset;          /* The start offset value */    int    partial;                 /* PARTIAL options */
2409    eptrblock *eptrchain;         /* Chain of eptrblocks for tail recursions */    int    end_offset_top;          /* Highwater mark at end of match */
2410    int    eptrn;                 /* Next free eptrblock */    int    capture_last;            /* Most recent capture number */
2411    recursion_info *recursive;    /* Linked list of recursion data */    int    start_offset;            /* The start offset value */
2412    void  *callout_data;          /* To pass back to callouts */    int    match_function_type;     /* Set for certain special calls of MATCH() */
2413    const uschar *mark;           /* Mark pointer to pass back */    eptrblock *eptrchain;           /* Chain of eptrblocks for tail recursions */
2414      int    eptrn;                   /* Next free eptrblock */
2415      recursion_info *recursive;      /* Linked list of recursion data */
2416      void  *callout_data;            /* To pass back to callouts */
2417      const  pcre_uchar *mark;        /* Mark pointer to pass back on success */
2418      const  pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
2419      const  pcre_uchar *once_target; /* Where to back up to for atomic groups */
2420    #ifdef NO_RECURSE
2421      void  *match_frames_base;       /* For remembering malloc'd frames */
2422    #endif
2423  } match_data;  } match_data;
2424    
2425  /* A similar structure is used for the same purpose by the DFA matching  /* A similar structure is used for the same purpose by the DFA matching
2426  functions. */  functions. */
2427    
2428  typedef struct dfa_match_data {  typedef struct dfa_match_data {
2429    const uschar *start_code;     /* Start of the compiled pattern */    const pcre_uchar *start_code;     /* Start of the compiled pattern */
2430    const uschar *start_subject;  /* Start of the subject string */    const pcre_uchar *start_subject ; /* Start of the subject string */
2431    const uschar *end_subject;    /* End of subject string */    const pcre_uchar *end_subject;    /* End of subject string */
2432    const uschar *start_used_ptr; /* Earliest consulted character */    const pcre_uchar *start_used_ptr; /* Earliest consulted character */
2433    const uschar *tables;         /* Character tables */    const pcre_uint8 *tables;         /* Character tables */
2434    int   start_offset;           /* The start offset value */    int   start_offset;               /* The start offset value */
2435    int   moptions;               /* Match options */    int   moptions;                   /* Match options */
2436    int   poptions;               /* Pattern options */    int   poptions;                   /* Pattern options */
2437    int    nltype;                /* Newline type */    int   nltype;                     /* Newline type */
2438    int    nllen;                 /* Newline string length */    int   nllen;                      /* Newline string length */
2439    uschar nl[4];                 /* Newline string when fixed */    pcre_uchar nl[4];                 /* Newline string when fixed */
2440    void  *callout_data;          /* To pass back to callouts */    void *callout_data;               /* To pass back to callouts */
2441      dfa_recursion_info *recursive;    /* Linked list of recursion data */
2442  } dfa_match_data;  } dfa_match_data;
2443    
2444  /* Bit definitions for entries in the pcre_ctypes table. */  /* Bit definitions for entries in the pcre_ctypes table. */
# Line 1789  total length. */ Line 2474  total length. */
2474  #define ctypes_offset (cbits_offset + cbit_length)  #define ctypes_offset (cbits_offset + cbit_length)
2475  #define tables_length (ctypes_offset + 256)  #define tables_length (ctypes_offset + 256)
2476    
2477    /* Internal function and data prefixes. */
2478    
2479    #if defined COMPILE_PCRE8
2480    #ifndef PUBL
2481    #define PUBL(name) pcre_##name
2482    #endif
2483    #ifndef PRIV
2484    #define PRIV(name) _pcre_##name
2485    #endif
2486    #elif defined COMPILE_PCRE16
2487    #ifndef PUBL
2488    #define PUBL(name) pcre16_##name
2489    #endif
2490    #ifndef PRIV
2491    #define PRIV(name) _pcre16_##name
2492    #endif
2493    #elif defined COMPILE_PCRE32
2494    #ifndef PUBL
2495    #define PUBL(name) pcre32_##name
2496    #endif
2497    #ifndef PRIV
2498    #define PRIV(name) _pcre32_##name
2499    #endif
2500    #else
2501    #error Unsupported compiling mode
2502    #endif /* COMPILE_PCRE[8|16|32] */
2503    
2504  /* Layout of the UCP type table that translates property names into types and  /* Layout of the UCP type table that translates property names into types and
2505  codes. Each entry used to point directly to a name, but to reduce the number of  codes. Each entry used to point directly to a name, but to reduce the number of
2506  relocations in shared libraries, it now has an offset into a single string  relocations in shared libraries, it now has an offset into a single string
# Line 1806  of the exported public functions. They h Line 2518  of the exported public functions. They h
2518  but are not part of the PCRE public API. The data for these tables is in the  but are not part of the PCRE public API. The data for these tables is in the
2519  pcre_tables.c module. */  pcre_tables.c module. */
2520    
2521  extern const int    _pcre_utf8_table1[];  #ifdef COMPILE_PCRE8
2522  extern const int    _pcre_utf8_table2[];  extern const int            PRIV(utf8_table1)[];
2523  extern const int    _pcre_utf8_table3[];  extern const int            PRIV(utf8_table1_size);
2524  extern const uschar _pcre_utf8_table4[];  extern const int            PRIV(utf8_table2)[];
2525    extern const int            PRIV(utf8_table3)[];
2526  extern const int    _pcre_utf8_table1_size;  extern const pcre_uint8     PRIV(utf8_table4)[];
2527    #endif /* COMPILE_PCRE8 */
2528  extern const char   _pcre_utt_names[];  
2529  extern const ucp_type_table _pcre_utt[];  extern const char           PRIV(utt_names)[];
2530  extern const int _pcre_utt_size;  extern const ucp_type_table PRIV(utt)[];
2531    extern const int            PRIV(utt_size);
2532    
2533  extern const uschar _pcre_default_tables[];  extern const pcre_uint8     PRIV(OP_lengths)[];
2534    extern const pcre_uint8     PRIV(default_tables)[];
2535    
2536  extern const uschar _pcre_OP_lengths[];  extern const pcre_uint32    PRIV(hspace_list)[];
2537    extern const pcre_uint32    PRIV(vspace_list)[];
2538    
2539    
2540  /* Internal shared functions. These are functions that are used by more than  /* Internal shared functions. These are functions that are used by more than
2541  one of the exported public functions. They have to be "external" in the C  one of the exported public functions. They have to be "external" in the C
2542  sense, but are not part of the PCRE public API. */  sense, but are not part of the PCRE public API. */
2543    
2544  extern const uschar *_pcre_find_bracket(const uschar *, BOOL, int);  /* String comparison functions. */
2545  extern BOOL          _pcre_is_newline(USPTR, int, USPTR, int *, BOOL);  #if defined COMPILE_PCRE8
 extern int           _pcre_ord2utf8(int, uschar *);  
 extern real_pcre    *_pcre_try_flipped(const real_pcre *, real_pcre *,  
                        const pcre_study_data *, pcre_study_data *);  
 extern int           _pcre_valid_utf8(USPTR, int);  
 extern BOOL          _pcre_was_newline(USPTR, int, USPTR, int *, BOOL);  
 extern BOOL          _pcre_xclass(int, const uschar *);  
2546    
2547    #define STRCMP_UC_UC(str1, str2) \
2548      strcmp((char *)(str1), (char *)(str2))
2549    #define STRCMP_UC_C8(str1, str2) \
2550      strcmp((char *)(str1), (str2))
2551    #define STRNCMP_UC_UC(str1, str2, num) \
2552      strncmp((char *)(str1), (char *)(str2), (num))
2553    #define STRNCMP_UC_C8(str1, str2, num) \
2554      strncmp((char *)(str1), (str2), (num))
2555    #define STRLEN_UC(str) strlen((const char *)str)
2556    
2557    #elif defined COMPILE_PCRE16 || defined COMPILE_PCRE32
2558    
2559    extern int               PRIV(strcmp_uc_uc)(const pcre_uchar *,
2560                               const pcre_uchar *);
2561    extern int               PRIV(strcmp_uc_c8)(const pcre_uchar *,
2562                               const char *);
2563    extern int               PRIV(strncmp_uc_uc)(const pcre_uchar *,
2564                               const pcre_uchar *, unsigned int num);
2565    extern int               PRIV(strncmp_uc_c8)(const pcre_uchar *,
2566                               const char *, unsigned int num);
2567    extern unsigned int      PRIV(strlen_uc)(const pcre_uchar *str);
2568    
2569    #define STRCMP_UC_UC(str1, str2) \
2570      PRIV(strcmp_uc_uc)((str1), (str2))
2571    #define STRCMP_UC_C8(str1, str2) \
2572      PRIV(strcmp_uc_c8)((str1), (str2))
2573    #define STRNCMP_UC_UC(str1, str2, num) \
2574      PRIV(strncmp_uc_uc)((str1), (str2), (num))
2575    #define STRNCMP_UC_C8(str1, str2, num) \
2576      PRIV(strncmp_uc_c8)((str1), (str2), (num))
2577    #define STRLEN_UC(str) PRIV(strlen_uc)(str)
2578    
2579    #endif /* COMPILE_PCRE[8|16|32] */
2580    
2581    extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
2582    extern BOOL              PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2583                               int *, BOOL);
2584    extern int               PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
2585    extern int               PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
2586    extern BOOL              PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2587                               int *, BOOL);
2588    extern BOOL              PRIV(xclass)(pcre_uint32, const pcre_uchar *, BOOL);
2589    
2590    #ifdef SUPPORT_JIT
2591    extern void              PRIV(jit_compile)(const REAL_PCRE *,
2592                               PUBL(extra) *, int);
2593    extern int               PRIV(jit_exec)(const REAL_PCRE *, const PUBL(extra) *,
2594                               const pcre_uchar *, int, int, int, int *, int);
2595    extern void              PRIV(jit_free)(void *);
2596    extern int               PRIV(jit_get_size)(void *);
2597    extern const char*       PRIV(jit_get_target)(void);
2598    #endif
2599    
2600  /* Unicode character database (UCD) */  /* Unicode character database (UCD) */
2601    
2602  typedef struct {  typedef struct {
2603    uschar script;    pcre_uint8 script;     /* ucp_Arabic, etc. */
2604    uschar chartype;    pcre_uint8 chartype;   /* ucp_Cc, etc. (general categories) */
2605    pcre_int32 other_case;    pcre_uint8 gbprop;     /* ucp_gbControl, etc. (grapheme break property) */
2606      pcre_uint8 caseset;    /* offset to multichar other cases or zero */
2607      pcre_int32 other_case; /* offset to other case, or zero if none */
2608  } ucd_record;  } ucd_record;
2609    
2610  extern const ucd_record  _pcre_ucd_records[];  extern const pcre_uint32 PRIV(ucd_caseless_sets)[];
2611  extern const uschar      _pcre_ucd_stage1[];  extern const ucd_record  PRIV(ucd_records)[];
2612  extern const pcre_uint16 _pcre_ucd_stage2[];  extern const pcre_uint8  PRIV(ucd_stage1)[];
2613  extern const int         _pcre_ucp_gentype[];  extern const pcre_uint16 PRIV(ucd_stage2)[];
2614    extern const int         PRIV(ucp_gentype)[];
2615    extern const pcre_uint32 PRIV(ucp_gbtable)[];
2616    #ifdef SUPPORT_JIT
2617    extern const int         PRIV(ucp_typerange)[];
2618    #endif
2619    
2620    #ifdef SUPPORT_UCP
2621  /* UCD access macros */  /* UCD access macros */
2622    
2623  #define UCD_BLOCK_SIZE 128  #define UCD_BLOCK_SIZE 128
2624  #define GET_UCD(ch) (_pcre_ucd_records + \  #define GET_UCD(ch) (PRIV(ucd_records) + \
2625          _pcre_ucd_stage2[_pcre_ucd_stage1[(ch) / UCD_BLOCK_SIZE] * \          PRIV(ucd_stage2)[PRIV(ucd_stage1)[(ch) / UCD_BLOCK_SIZE] * \
2626          UCD_BLOCK_SIZE + ch % UCD_BLOCK_SIZE])          UCD_BLOCK_SIZE + (ch) % UCD_BLOCK_SIZE])
2627    
2628  #define UCD_CHARTYPE(ch)  GET_UCD(ch)->chartype  #define UCD_CHARTYPE(ch)    GET_UCD(ch)->chartype
2629  #define UCD_SCRIPT(ch)    GET_UCD(ch)->script  #define UCD_SCRIPT(ch)      GET_UCD(ch)->script
2630  #define UCD_CATEGORY(ch)  _pcre_ucp_gentype[UCD_CHARTYPE(ch)]  #define UCD_CATEGORY(ch)    PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
2631  #define UCD_OTHERCASE(ch) (ch + GET_UCD(ch)->other_case)  #define UCD_GRAPHBREAK(ch)  GET_UCD(ch)->gbprop
2632    #define UCD_CASESET(ch)     GET_UCD(ch)->caseset
2633    #define UCD_OTHERCASE(ch)   (ch + GET_UCD(ch)->other_case)
2634    
2635    #endif /* SUPPORT_UCP */
2636    
2637  #endif  #endif
2638    

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