/[pcre]/code/trunk/pcre_internal.h
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revision 442 by ph10, Fri Sep 11 10:21:02 2009 UTC revision 929 by zherczeg, Fri Feb 24 11:07:47 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) 1997-2009 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_" or "_pcre16_" depending on
44    the PRIV macro. */
45    
46  #ifndef PCRE_INTERNAL_H  #ifndef PCRE_INTERNAL_H
47  #define PCRE_INTERNAL_H  #define PCRE_INTERNAL_H
48    
49  /* Define DEBUG to get debugging output on stdout. */  /* Define PCRE_DEBUG to get debugging output on stdout. */
50    
51  #if 0  #if 0
52  #define 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". */  #ifndef COMPILE_PCRE16
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 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_UTF8/16 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 74  It turns out that the Mac Debugging.h he Line 94  It turns out that the Mac Debugging.h he
94  be absolutely sure we get our version. */  be absolutely sure we get our version. */
95    
96  #undef DPRINTF  #undef DPRINTF
97  #ifdef DEBUG  #ifdef PCRE_DEBUG
98  #define DPRINTF(p) printf p  #define DPRINTF(p) printf p
99  #else  #else
100  #define DPRINTF(p) /* Nothing */  #define DPRINTF(p) /* Nothing */
# Line 86  setjmp and stdarg are used is when NO_RE Line 106  setjmp and stdarg are used is when NO_RE
106    
107  #include <ctype.h>  #include <ctype.h>
108  #include <limits.h>  #include <limits.h>
 #include <setjmp.h>  
 #include <stdarg.h>  
109  #include <stddef.h>  #include <stddef.h>
110  #include <stdio.h>  #include <stdio.h>
111  #include <stdlib.h>  #include <stdlib.h>
# Line 160  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 186  preprocessor time in standard C environm Line 206  preprocessor time in standard C environm
206    #error Cannot determine a type for 32-bit unsigned integers    #error Cannot determine a type for 32-bit unsigned integers
207  #endif  #endif
208    
209    /* When checking for integer overflow in pcre_compile(), we need to handle
210    large integers. If a 64-bit integer type is available, we can use that.
211    Otherwise we have to cast to double, which of course requires floating point
212    arithmetic. Handle this by defining a macro for the appropriate type. If
213    stdint.h is available, include it; it may define INT64_MAX. Systems that do not
214    have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
215    by "configure". */
216    
217    #if HAVE_STDINT_H
218    #include <stdint.h>
219    #elif HAVE_INTTYPES_H
220    #include <inttypes.h>
221    #endif
222    
223    #if defined INT64_MAX || defined int64_t
224    #define INT64_OR_DOUBLE int64_t
225    #else
226    #define INT64_OR_DOUBLE double
227    #endif
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    #ifdef COMPILE_PCRE8
247    
248    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    #else
254    
255    #ifdef COMPILE_PCRE16
256    #if USHRT_MAX != 65535
257    /* This is a warning message. Change PCRE_UCHAR16 to a 16 bit data type in
258    pcre.h(.in) and disable (comment out) this message. */
259    #error Warning: PCRE_UCHAR16 is not a 16 bit data type.
260    #endif
261    
262    typedef pcre_uint16 pcre_uchar;
263    #define IN_UCHARS(x) ((x) << 1)
264    #define MAX_255(c) ((c) <= 255u)
265    #define TABLE_GET(c, table, default) (MAX_255(c)? ((table)[c]):(default))
266    
267  typedef unsigned char uschar;  #else
268    #error Unsupported compiling mode
269    #endif /* COMPILE_PCRE16 */
270    
271    #endif /* COMPILE_PCRE8 */
272    
273  /* 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
274  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 216  start/end of string field names are. */ Line 291  start/end of string field names are. */
291  #define IS_NEWLINE(p) \  #define IS_NEWLINE(p) \
292    ((NLBLOCK->nltype != NLTYPE_FIXED)? \    ((NLBLOCK->nltype != NLTYPE_FIXED)? \
293      ((p) < NLBLOCK->PSEND && \      ((p) < NLBLOCK->PSEND && \
294       _pcre_is_newline((p), NLBLOCK->nltype, NLBLOCK->PSEND, &(NLBLOCK->nllen),\       PRIV(is_newline)((p), NLBLOCK->nltype, NLBLOCK->PSEND, \
295         utf8)) \         &(NLBLOCK->nllen), utf)) \
296      : \      : \
297      ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \      ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
298       (p)[0] == NLBLOCK->nl[0] && \       (p)[0] == NLBLOCK->nl[0] && \
# Line 230  start/end of string field names are. */ Line 305  start/end of string field names are. */
305  #define WAS_NEWLINE(p) \  #define WAS_NEWLINE(p) \
306    ((NLBLOCK->nltype != NLTYPE_FIXED)? \    ((NLBLOCK->nltype != NLTYPE_FIXED)? \
307      ((p) > NLBLOCK->PSSTART && \      ((p) > NLBLOCK->PSSTART && \
308       _pcre_was_newline((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \       PRIV(was_newline)((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
309         &(NLBLOCK->nllen), utf8)) \         &(NLBLOCK->nllen), utf)) \
310      : \      : \
311      ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \      ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
312       (p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \       (p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \
# Line 249  used for the external interface and appe Line 324  used for the external interface and appe
324  must begin with PCRE_. */  must begin with PCRE_. */
325    
326  #ifdef CUSTOM_SUBJECT_PTR  #ifdef CUSTOM_SUBJECT_PTR
327  #define PCRE_SPTR CUSTOM_SUBJECT_PTR  #define PCRE_PUCHAR CUSTOM_SUBJECT_PTR
 #define USPTR CUSTOM_SUBJECT_PTR  
328  #else  #else
329  #define PCRE_SPTR const char *  #define PCRE_PUCHAR const pcre_uchar *
 #define USPTR const unsigned char *  
330  #endif  #endif
331    
   
   
332  /* Include the public PCRE header and the definitions of UCP character property  /* Include the public PCRE header and the definitions of UCP character property
333  values. */  values. */
334    
# Line 325  The macros are controlled by the value o Line 396  The macros are controlled by the value o
396  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
397  is automated on Unix systems via the "configure" command. */  is automated on Unix systems via the "configure" command. */
398    
399    #ifdef COMPILE_PCRE8
400    
401  #if LINK_SIZE == 2  #if LINK_SIZE == 2
402    
403  #define PUT(a,n,d)   \  #define PUT(a,n,d)   \
# Line 361  is automated on Unix systems via the "co Line 434  is automated on Unix systems via the "co
434  #define GET(a,n) \  #define GET(a,n) \
435    (((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])
436    
437  #define MAX_PATTERN_SIZE (1 << 30)   /* Keep it positive */  /* Keep it positive */
438    #define MAX_PATTERN_SIZE (1 << 30)
439    
440    #else
441    #error LINK_SIZE must be either 2, 3, or 4
442    #endif
443    
444    #else /* COMPILE_PCRE8 */
445    
446    #ifdef COMPILE_PCRE16
447    
448    #if LINK_SIZE == 2
449    
450    #undef LINK_SIZE
451    #define LINK_SIZE 1
452    
453    #define PUT(a,n,d)   \
454      (a[n] = (d))
455    
456    #define GET(a,n) \
457      (a[n])
458    
459    #define MAX_PATTERN_SIZE (1 << 16)
460    
461    #elif LINK_SIZE == 3 || LINK_SIZE == 4
462    
463    #undef LINK_SIZE
464    #define LINK_SIZE 2
465    
466    #define PUT(a,n,d)   \
467      (a[n] = (d) >> 16), \
468      (a[(n)+1] = (d) & 65535)
469    
470    #define GET(a,n) \
471      (((a)[n] << 16) | (a)[(n)+1])
472    
473    /* Keep it positive */
474    #define MAX_PATTERN_SIZE (1 << 30)
475    
476  #else  #else
477  #error LINK_SIZE must be either 2, 3, or 4  #error LINK_SIZE must be either 2, 3, or 4
478  #endif  #endif
479    
480    #else
481    #error Unsupported compiling mode
482    #endif /* COMPILE_PCRE16 */
483    
484    #endif /* COMPILE_PCRE8 */
485    
486  /* Convenience macro defined in terms of the others */  /* Convenience macro defined in terms of the others */
487    
# Line 378  is automated on Unix systems via the "co Line 492  is automated on Unix systems via the "co
492  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
493  capturing parenthesis numbers in back references. */  capturing parenthesis numbers in back references. */
494    
495    #ifdef COMPILE_PCRE8
496    
497    #define IMM2_SIZE 2
498    
499  #define PUT2(a,n,d)   \  #define PUT2(a,n,d)   \
500    a[n] = (d) >> 8; \    a[n] = (d) >> 8; \
501    a[(n)+1] = (d) & 255    a[(n)+1] = (d) & 255
# Line 385  capturing parenthesis numbers in back re Line 503  capturing parenthesis numbers in back re
503  #define GET2(a,n) \  #define GET2(a,n) \
504    (((a)[n] << 8) | (a)[(n)+1])    (((a)[n] << 8) | (a)[(n)+1])
505    
506  #define PUT2INC(a,n,d)  PUT2(a,n,d), a += 2  #else /* COMPILE_PCRE8 */
507    
508    #ifdef COMPILE_PCRE16
509    
510  /* When UTF-8 encoding is being used, a character is no longer just a single  #define IMM2_SIZE 1
 byte. The macros for character handling generate simple sequences when used in  
 byte-mode, and more complicated ones for UTF-8 characters. BACKCHAR should  
 never be called in byte mode. To make sure it can never even appear when UTF-8  
 support is omitted, we don't even define it. */  
511    
512  #ifndef SUPPORT_UTF8  #define PUT2(a,n,d)   \
513       a[n] = d
514    
515    #define GET2(a,n) \
516       a[n]
517    
518    #else
519    #error Unsupported compiling mode
520    #endif /* COMPILE_PCRE16 */
521    
522    #endif /* COMPILE_PCRE8 */
523    
524    #define PUT2INC(a,n,d)  PUT2(a,n,d), a += IMM2_SIZE
525    
526    /* When UTF encoding is being used, a character is no longer just a single
527    character. The macros for character handling generate simple sequences when
528    used in character-mode, and more complicated ones for UTF characters.
529    GETCHARLENTEST and other macros are not used when UTF is not supported,
530    so they are not defined. To make sure they can never even appear when
531    UTF support is omitted, we don't even define them. */
532    
533    #ifndef SUPPORT_UTF
534    
535    /* #define MAX_VALUE_FOR_SINGLE_CHAR */
536    /* #define HAS_EXTRALEN(c) */
537    /* #define GET_EXTRALEN(c) */
538    /* #define NOT_FIRSTCHAR(c) */
539  #define GETCHAR(c, eptr) c = *eptr;  #define GETCHAR(c, eptr) c = *eptr;
540  #define GETCHARTEST(c, eptr) c = *eptr;  #define GETCHARTEST(c, eptr) c = *eptr;
541  #define GETCHARINC(c, eptr) c = *eptr++;  #define GETCHARINC(c, eptr) c = *eptr++;
542  #define GETCHARINCTEST(c, eptr) c = *eptr++;  #define GETCHARINCTEST(c, eptr) c = *eptr++;
543  #define GETCHARLEN(c, eptr, len) c = *eptr;  #define GETCHARLEN(c, eptr, len) c = *eptr;
544    /* #define GETCHARLENTEST(c, eptr, len) */
545  /* #define BACKCHAR(eptr) */  /* #define BACKCHAR(eptr) */
546    /* #define FORWARDCHAR(eptr) */
547    /* #define ACROSSCHAR(condition, eptr, action) */
548    
549    #else   /* SUPPORT_UTF */
550    
551  #else   /* SUPPORT_UTF8 */  #ifdef COMPILE_PCRE8
552    
553    /* These macros were originally written in the form of loops that used data
554    from the tables whose names start with PRIV(utf8_table). They were rewritten by
555    a user so as not to use loops, because in some environments this gives a
556    significant performance advantage, and it seems never to do any harm. */
557    
558    /* Tells the biggest code point which can be encoded as a single character. */
559    
560    #define MAX_VALUE_FOR_SINGLE_CHAR 127
561    
562    /* Tests whether the code point needs extra characters to decode. */
563    
564    #define HAS_EXTRALEN(c) ((c) >= 0xc0)
565    
566    /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
567    Otherwise it has an undefined behaviour. */
568    
569    #define GET_EXTRALEN(c) (PRIV(utf8_table4)[(c) & 0x3f])
570    
571    /* Returns TRUE, if the given character is not the first character
572    of a UTF sequence. */
573    
574    #define NOT_FIRSTCHAR(c) (((c) & 0xc0) == 0x80)
575    
576    /* Base macro to pick up the remaining bytes of a UTF-8 character, not
577    advancing the pointer. */
578    
579    #define GETUTF8(c, eptr) \
580        { \
581        if ((c & 0x20) == 0) \
582          c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
583        else if ((c & 0x10) == 0) \
584          c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
585        else if ((c & 0x08) == 0) \
586          c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
587          ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
588        else if ((c & 0x04) == 0) \
589          c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
590              ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
591              (eptr[4] & 0x3f); \
592        else \
593          c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
594              ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
595              ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
596        }
597    
598  /* Get the next UTF-8 character, not advancing the pointer. This is called when  /* Get the next UTF-8 character, not advancing the pointer. This is called when
599  we know we are in UTF-8 mode. */  we know we are in UTF-8 mode. */
600    
601  #define GETCHAR(c, eptr) \  #define GETCHAR(c, eptr) \
602    c = *eptr; \    c = *eptr; \
603    if (c >= 0xc0) \    if (c >= 0xc0) GETUTF8(c, eptr);
     { \  
     int gcii; \  
     int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \  
     int gcss = 6*gcaa; \  
     c = (c & _pcre_utf8_table3[gcaa]) << gcss; \  
     for (gcii = 1; gcii <= gcaa; gcii++) \  
       { \  
       gcss -= 6; \  
       c |= (eptr[gcii] & 0x3f) << gcss; \  
       } \  
     }  
604    
605  /* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the  /* Get the next UTF-8 character, testing for UTF-8 mode, and not advancing the
606  pointer. */  pointer. */
607    
608  #define GETCHARTEST(c, eptr) \  #define GETCHARTEST(c, eptr) \
609    c = *eptr; \    c = *eptr; \
610    if (utf8 && c >= 0xc0) \    if (utf && c >= 0xc0) GETUTF8(c, eptr);
611    
612    /* Base macro to pick up the remaining bytes of a UTF-8 character, advancing
613    the pointer. */
614    
615    #define GETUTF8INC(c, eptr) \
616      { \      { \
617      int gcii; \      if ((c & 0x20) == 0) \
618      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \        c = ((c & 0x1f) << 6) | (*eptr++ & 0x3f); \
619      int gcss = 6*gcaa; \      else if ((c & 0x10) == 0) \
     c = (c & _pcre_utf8_table3[gcaa]) << gcss; \  
     for (gcii = 1; gcii <= gcaa; gcii++) \  
620        { \        { \
621        gcss -= 6; \        c = ((c & 0x0f) << 12) | ((*eptr & 0x3f) << 6) | (eptr[1] & 0x3f); \
622        c |= (eptr[gcii] & 0x3f) << gcss; \        eptr += 2; \
623          } \
624        else if ((c & 0x08) == 0) \
625          { \
626          c = ((c & 0x07) << 18) | ((*eptr & 0x3f) << 12) | \
627              ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
628          eptr += 3; \
629          } \
630        else if ((c & 0x04) == 0) \
631          { \
632          c = ((c & 0x03) << 24) | ((*eptr & 0x3f) << 18) | \
633              ((eptr[1] & 0x3f) << 12) | ((eptr[2] & 0x3f) << 6) | \
634              (eptr[3] & 0x3f); \
635          eptr += 4; \
636          } \
637        else \
638          { \
639          c = ((c & 0x01) << 30) | ((*eptr & 0x3f) << 24) | \
640              ((eptr[1] & 0x3f) << 18) | ((eptr[2] & 0x3f) << 12) | \
641              ((eptr[3] & 0x3f) << 6) | (eptr[4] & 0x3f); \
642          eptr += 5; \
643        } \        } \
644      }      }
645    
# Line 445  know we are in UTF-8 mode. */ Line 648  know we are in UTF-8 mode. */
648    
649  #define GETCHARINC(c, eptr) \  #define GETCHARINC(c, eptr) \
650    c = *eptr++; \    c = *eptr++; \
651    if (c >= 0xc0) \    if (c >= 0xc0) GETUTF8INC(c, eptr);
     { \  
     int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \  
     int gcss = 6*gcaa; \  
     c = (c & _pcre_utf8_table3[gcaa]) << gcss; \  
     while (gcaa-- > 0) \  
       { \  
       gcss -= 6; \  
       c |= (*eptr++ & 0x3f) << gcss; \  
       } \  
     }  
652    
653  /* Get the next character, testing for UTF-8 mode, and advancing the pointer */  /* Get the next character, testing for UTF-8 mode, and advancing the pointer.
654    This is called when we don't know if we are in UTF-8 mode. */
655    
656  #define GETCHARINCTEST(c, eptr) \  #define GETCHARINCTEST(c, eptr) \
657    c = *eptr++; \    c = *eptr++; \
658    if (utf8 && c >= 0xc0) \    if (utf && c >= 0xc0) GETUTF8INC(c, eptr);
659    
660    /* Base macro to pick up the remaining bytes of a UTF-8 character, not
661    advancing the pointer, incrementing the length. */
662    
663    #define GETUTF8LEN(c, eptr, len) \
664      { \      { \
665      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \      if ((c & 0x20) == 0) \
666      int gcss = 6*gcaa; \        { \
667      c = (c & _pcre_utf8_table3[gcaa]) << gcss; \        c = ((c & 0x1f) << 6) | (eptr[1] & 0x3f); \
668      while (gcaa-- > 0) \        len++; \
669          } \
670        else if ((c & 0x10)  == 0) \
671        { \        { \
672        gcss -= 6; \        c = ((c & 0x0f) << 12) | ((eptr[1] & 0x3f) << 6) | (eptr[2] & 0x3f); \
673        c |= (*eptr++ & 0x3f) << gcss; \        len += 2; \
674          } \
675        else if ((c & 0x08)  == 0) \
676          {\
677          c = ((c & 0x07) << 18) | ((eptr[1] & 0x3f) << 12) | \
678              ((eptr[2] & 0x3f) << 6) | (eptr[3] & 0x3f); \
679          len += 3; \
680          } \
681        else if ((c & 0x04)  == 0) \
682          { \
683          c = ((c & 0x03) << 24) | ((eptr[1] & 0x3f) << 18) | \
684              ((eptr[2] & 0x3f) << 12) | ((eptr[3] & 0x3f) << 6) | \
685              (eptr[4] & 0x3f); \
686          len += 4; \
687          } \
688        else \
689          {\
690          c = ((c & 0x01) << 30) | ((eptr[1] & 0x3f) << 24) | \
691              ((eptr[2] & 0x3f) << 18) | ((eptr[3] & 0x3f) << 12) | \
692              ((eptr[4] & 0x3f) << 6) | (eptr[5] & 0x3f); \
693          len += 5; \
694        } \        } \
695      }      }
696    
# Line 478  if there are extra bytes. This is called Line 699  if there are extra bytes. This is called
699    
700  #define GETCHARLEN(c, eptr, len) \  #define GETCHARLEN(c, eptr, len) \
701    c = *eptr; \    c = *eptr; \
702    if (c >= 0xc0) \    if (c >= 0xc0) GETUTF8LEN(c, eptr, len);
     { \  
     int gcii; \  
     int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \  
     int gcss = 6*gcaa; \  
     c = (c & _pcre_utf8_table3[gcaa]) << gcss; \  
     for (gcii = 1; gcii <= gcaa; gcii++) \  
       { \  
       gcss -= 6; \  
       c |= (eptr[gcii] & 0x3f) << gcss; \  
       } \  
     len += gcaa; \  
     }  
703    
704  /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the  /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
705  pointer, incrementing length if there are extra bytes. This is called when we  pointer, incrementing length if there are extra bytes. This is called when we
706  know we are in UTF-8 mode. */  do not know if we are in UTF-8 mode. */
707    
708  #define GETCHARLENTEST(c, eptr, len) \  #define GETCHARLENTEST(c, eptr, len) \
709    c = *eptr; \    c = *eptr; \
710    if (utf8 && c >= 0xc0) \    if (utf && c >= 0xc0) GETUTF8LEN(c, eptr, len);
     { \  
     int gcii; \  
     int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \  
     int gcss = 6*gcaa; \  
     c = (c & _pcre_utf8_table3[gcaa]) << gcss; \  
     for (gcii = 1; gcii <= gcaa; gcii++) \  
       { \  
       gcss -= 6; \  
       c |= (eptr[gcii] & 0x3f) << gcss; \  
       } \  
     len += gcaa; \  
     }  
711    
712  /* 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
713  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 518  because almost all calls are already wit Line 715  because almost all calls are already wit
715    
716  #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--  #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
717    
718    /* Same as above, just in the other direction. */
719    #define FORWARDCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr++
720    
721    /* Same as above, but it allows a fully customizable form. */
722    #define ACROSSCHAR(condition, eptr, action) \
723      while((condition) && ((eptr) & 0xc0) == 0x80) action
724    
725    #else /* COMPILE_PCRE8 */
726    
727    #ifdef COMPILE_PCRE16
728    
729    /* Tells the biggest code point which can be encoded as a single character. */
730    
731    #define MAX_VALUE_FOR_SINGLE_CHAR 65535
732    
733    /* Tests whether the code point needs extra characters to decode. */
734    
735    #define HAS_EXTRALEN(c) (((c) & 0xfc00) == 0xd800)
736    
737    /* Returns with the additional number of characters if IS_MULTICHAR(c) is TRUE.
738    Otherwise it has an undefined behaviour. */
739    
740    #define GET_EXTRALEN(c) 1
741    
742    /* Returns TRUE, if the given character is not the first character
743    of a UTF sequence. */
744    
745    #define NOT_FIRSTCHAR(c) (((c) & 0xfc00) == 0xdc00)
746    
747    /* Base macro to pick up the low surrogate of a UTF-16 character, not
748    advancing the pointer. */
749    
750    #define GETUTF16(c, eptr) \
751       { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; }
752    
753    /* Get the next UTF-16 character, not advancing the pointer. This is called when
754    we know we are in UTF-16 mode. */
755    
756    #define GETCHAR(c, eptr) \
757      c = *eptr; \
758      if ((c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
759    
760    /* Get the next UTF-16 character, testing for UTF-16 mode, and not advancing the
761    pointer. */
762    
763    #define GETCHARTEST(c, eptr) \
764      c = *eptr; \
765      if (utf && (c & 0xfc00) == 0xd800) GETUTF16(c, eptr);
766    
767    /* Base macro to pick up the low surrogate of a UTF-16 character, advancing
768    the pointer. */
769    
770    #define GETUTF16INC(c, eptr) \
771       { c = (((c & 0x3ff) << 10) | (*eptr++ & 0x3ff)) + 0x10000; }
772    
773    /* Get the next UTF-16 character, advancing the pointer. This is called when we
774    know we are in UTF-16 mode. */
775    
776    #define GETCHARINC(c, eptr) \
777      c = *eptr++; \
778      if ((c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
779    
780    /* Get the next character, testing for UTF-16 mode, and advancing the pointer.
781    This is called when we don't know if we are in UTF-16 mode. */
782    
783    #define GETCHARINCTEST(c, eptr) \
784      c = *eptr++; \
785      if (utf && (c & 0xfc00) == 0xd800) GETUTF16INC(c, eptr);
786    
787    /* Base macro to pick up the low surrogate of a UTF-16 character, not
788    advancing the pointer, incrementing the length. */
789    
790    #define GETUTF16LEN(c, eptr, len) \
791       { c = (((c & 0x3ff) << 10) | (eptr[1] & 0x3ff)) + 0x10000; len++; }
792    
793    /* Get the next UTF-16 character, not advancing the pointer, incrementing
794    length if there is a low surrogate. This is called when we know we are in
795    UTF-16 mode. */
796    
797    #define GETCHARLEN(c, eptr, len) \
798      c = *eptr; \
799      if ((c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
800    
801    /* Get the next UTF-816character, testing for UTF-16 mode, not advancing the
802    pointer, incrementing length if there is a low surrogate. This is called when
803    we do not know if we are in UTF-16 mode. */
804    
805    #define GETCHARLENTEST(c, eptr, len) \
806      c = *eptr; \
807      if (utf && (c & 0xfc00) == 0xd800) GETUTF16LEN(c, eptr, len);
808    
809    /* If the pointer is not at the start of a character, move it back until
810    it is. This is called only in UTF-16 mode - we don't put a test within the
811    macro because almost all calls are already within a block of UTF-16 only
812    code. */
813    
814    #define BACKCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr--
815    
816    /* Same as above, just in the other direction. */
817    #define FORWARDCHAR(eptr) if ((*eptr & 0xfc00) == 0xdc00) eptr++
818    
819    /* Same as above, but it allows a fully customizable form. */
820    #define ACROSSCHAR(condition, eptr, action) \
821      if ((condition) && ((eptr) & 0xfc00) == 0xdc00) action
822    
823  #endif  #endif
824    
825    #endif /* COMPILE_PCRE8 */
826    
827    #endif  /* SUPPORT_UTF */
828    
829    
830  /* In case there is no definition of offsetof() provided - though any proper  /* In case there is no definition of offsetof() provided - though any proper
831  Standard C system should have one. */  Standard C system should have one. */
# Line 529  Standard C system should have one. */ Line 835  Standard C system should have one. */
835  #endif  #endif
836    
837    
 /* These are the public options that can change during matching. */  
   
 #define PCRE_IMS (PCRE_CASELESS|PCRE_MULTILINE|PCRE_DOTALL)  
   
838  /* Private flags containing information about the compiled regex. They used to  /* Private flags containing information about the compiled regex. They used to
839  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
840  are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as  are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as
841  the restrictions on partial matching have been lifted. It remains for backwards  the restrictions on partial matching have been lifted. It remains for backwards
842  compatibility. */  compatibility. */
843    
844  #define PCRE_NOPARTIAL     0x0001  /* can't use partial with this regex */  #ifdef COMPILE_PCRE8
845  #define PCRE_FIRSTSET      0x0002  /* first_byte is set */  #define PCRE_MODE          0x0001  /* compiled in 8 bit mode */
846  #define PCRE_REQCHSET      0x0004  /* req_byte is set */  #endif
847  #define PCRE_STARTLINE     0x0008  /* start after \n for multiline */  #ifdef COMPILE_PCRE16
848  #define PCRE_JCHANGED      0x0010  /* j option used in regex */  #define PCRE_MODE          0x0002  /* compiled in 16 bit mode */
849  #define PCRE_HASCRORLF     0x0020  /* explicit \r or \n in pattern */  #endif
850    #define PCRE_FIRSTSET      0x0010  /* first_char is set */
851    #define PCRE_FCH_CASELESS  0x0020  /* caseless first char */
852    #define PCRE_REQCHSET      0x0040  /* req_byte is set */
853    #define PCRE_RCH_CASELESS  0x0080  /* caseless requested char */
854    #define PCRE_STARTLINE     0x0100  /* start after \n for multiline */
855    #define PCRE_NOPARTIAL     0x0200  /* can't use partial with this regex */
856    #define PCRE_JCHANGED      0x0400  /* j option used in regex */
857    #define PCRE_HASCRORLF     0x0800  /* explicit \r or \n in pattern */
858    #define PCRE_HASTHEN       0x1000  /* pattern contains (*THEN) */
859    
860  /* Options for the "extra" block produced by pcre_study(). */  /* Flags for the "extra" block produced by pcre_study(). */
861    
862  #define PCRE_STUDY_MAPPED   0x01     /* a map of starting chars exists */  #define PCRE_STUDY_MAPPED  0x0001  /* a map of starting chars exists */
863    #define PCRE_STUDY_MINLEN  0x0002  /* a minimum length field exists */
864    
865  /* Masks for identifying the public options that are permitted at compile  /* Masks for identifying the public options that are permitted at compile
866  time, run time, or study time, respectively. */  time, run time, or study time, respectively. */
# Line 561  time, run time, or study time, respectiv Line 873  time, run time, or study time, respectiv
873     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
874     PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \     PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
875     PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \     PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
876     PCRE_JAVASCRIPT_COMPAT)     PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE)
877    
878  #define PUBLIC_EXEC_OPTIONS \  #define PUBLIC_EXEC_OPTIONS \
879    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
# Line 574  time, run time, or study time, respectiv Line 886  time, run time, or study time, respectiv
886     PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \     PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
887     PCRE_NO_START_OPTIMIZE)     PCRE_NO_START_OPTIMIZE)
888    
889  #define PUBLIC_STUDY_OPTIONS 0   /* None defined */  #define PUBLIC_STUDY_OPTIONS \
890       (PCRE_STUDY_JIT_COMPILE|PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE| \
891        PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE)
892    
893  /* 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. */  
894    
895  #define MAGIC_NUMBER  0x50435245UL   /* 'PCRE' */  #define MAGIC_NUMBER  0x50435245UL   /* 'PCRE' */
896    
897    /* This variable is used to detect a loaded regular expression
898    in different endianness. */
899    
900    #define REVERSED_MAGIC_NUMBER  0x45524350UL   /* 'ERCP' */
901    
902  /* Negative values for the firstchar and reqchar variables */  /* Negative values for the firstchar and reqchar variables */
903    
904  #define REQ_UNSET (-2)  #define REQ_UNSET (-2)
# Line 591  req_byte match. */ Line 909  req_byte match. */
909    
910  #define REQ_BYTE_MAX 1000  #define REQ_BYTE_MAX 1000
911    
 /* 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 */  
   
912  /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in  /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
913  environments where these macros are defined elsewhere. Unfortunately, there  environments where these macros are defined elsewhere. Unfortunately, there
914  is no way to do the same for the typedef. */  is no way to do the same for the typedef. */
# Line 625  for) in a minority area (EBCDIC platform Line 937  for) in a minority area (EBCDIC platform
937  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
938  macros to give the functions distinct names. */  macros to give the functions distinct names. */
939    
940  #ifndef SUPPORT_UTF8  #ifndef SUPPORT_UTF
941    
942  /* UTF-8 support is not enabled; use the platform-dependent character literals  /* UTF-8 support is not enabled; use the platform-dependent character literals
943  so that PCRE works on both ASCII and EBCDIC platforms, in non-UTF-mode only. */  so that PCRE works on both ASCII and EBCDIC platforms, in non-UTF-mode only. */
# Line 856  so that PCRE works on both ASCII and EBC Line 1168  so that PCRE works on both ASCII and EBC
1168  #define STRING_COMMIT0              "COMMIT\0"  #define STRING_COMMIT0              "COMMIT\0"
1169  #define STRING_F0                   "F\0"  #define STRING_F0                   "F\0"
1170  #define STRING_FAIL0                "FAIL\0"  #define STRING_FAIL0                "FAIL\0"
1171    #define STRING_MARK0                "MARK\0"
1172  #define STRING_PRUNE0               "PRUNE\0"  #define STRING_PRUNE0               "PRUNE\0"
1173  #define STRING_SKIP0                "SKIP\0"  #define STRING_SKIP0                "SKIP\0"
1174  #define STRING_THEN                 "THEN"  #define STRING_THEN                 "THEN"
# Line 877  so that PCRE works on both ASCII and EBC Line 1190  so that PCRE works on both ASCII and EBC
1190    
1191  #define STRING_DEFINE               "DEFINE"  #define STRING_DEFINE               "DEFINE"
1192    
1193  #define STRING_CR_RIGHTPAR          "CR)"  #define STRING_CR_RIGHTPAR             "CR)"
1194  #define STRING_LF_RIGHTPAR          "LF)"  #define STRING_LF_RIGHTPAR             "LF)"
1195  #define STRING_CRLF_RIGHTPAR        "CRLF)"  #define STRING_CRLF_RIGHTPAR           "CRLF)"
1196  #define STRING_ANY_RIGHTPAR         "ANY)"  #define STRING_ANY_RIGHTPAR            "ANY)"
1197  #define STRING_ANYCRLF_RIGHTPAR     "ANYCRLF)"  #define STRING_ANYCRLF_RIGHTPAR        "ANYCRLF)"
1198  #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"  #define STRING_BSR_ANYCRLF_RIGHTPAR    "BSR_ANYCRLF)"
1199  #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"  #define STRING_BSR_UNICODE_RIGHTPAR    "BSR_UNICODE)"
1200  #define STRING_UTF8_RIGHTPAR        "UTF8)"  #ifdef COMPILE_PCRE8
1201    #define STRING_UTF_RIGHTPAR            "UTF8)"
1202    #endif
1203    #ifdef COMPILE_PCRE16
1204    #define STRING_UTF_RIGHTPAR            "UTF16)"
1205    #endif
1206    #define STRING_UCP_RIGHTPAR            "UCP)"
1207    #define STRING_NO_START_OPT_RIGHTPAR   "NO_START_OPT)"
1208    
1209  #else  /* SUPPORT_UTF8 */  #else  /* SUPPORT_UTF */
1210    
1211  /* 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
1212  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 1108  only. */ Line 1428  only. */
1428  #define STRING_COMMIT0              STR_C STR_O STR_M STR_M STR_I STR_T "\0"  #define STRING_COMMIT0              STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1429  #define STRING_F0                   STR_F "\0"  #define STRING_F0                   STR_F "\0"
1430  #define STRING_FAIL0                STR_F STR_A STR_I STR_L "\0"  #define STRING_FAIL0                STR_F STR_A STR_I STR_L "\0"
1431    #define STRING_MARK0                STR_M STR_A STR_R STR_K "\0"
1432  #define STRING_PRUNE0               STR_P STR_R STR_U STR_N STR_E "\0"  #define STRING_PRUNE0               STR_P STR_R STR_U STR_N STR_E "\0"
1433  #define STRING_SKIP0                STR_S STR_K STR_I STR_P "\0"  #define STRING_SKIP0                STR_S STR_K STR_I STR_P "\0"
1434  #define STRING_THEN                 STR_T STR_H STR_E STR_N  #define STRING_THEN                 STR_T STR_H STR_E STR_N
# Line 1129  only. */ Line 1450  only. */
1450    
1451  #define STRING_DEFINE               STR_D STR_E STR_F STR_I STR_N STR_E  #define STRING_DEFINE               STR_D STR_E STR_F STR_I STR_N STR_E
1452    
1453  #define STRING_CR_RIGHTPAR          STR_C STR_R STR_RIGHT_PARENTHESIS  #define STRING_CR_RIGHTPAR             STR_C STR_R STR_RIGHT_PARENTHESIS
1454  #define STRING_LF_RIGHTPAR          STR_L STR_F STR_RIGHT_PARENTHESIS  #define STRING_LF_RIGHTPAR             STR_L STR_F STR_RIGHT_PARENTHESIS
1455  #define STRING_CRLF_RIGHTPAR        STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS  #define STRING_CRLF_RIGHTPAR           STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1456  #define STRING_ANY_RIGHTPAR         STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS  #define STRING_ANY_RIGHTPAR            STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1457  #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
1458  #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
1459  #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
1460  #define STRING_UTF8_RIGHTPAR        STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS  #ifdef COMPILE_PCRE8
1461    #define STRING_UTF_RIGHTPAR            STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1462    #endif
1463    #ifdef COMPILE_PCRE16
1464    #define STRING_UTF_RIGHTPAR            STR_U STR_T STR_F STR_1 STR_6 STR_RIGHT_PARENTHESIS
1465    #endif
1466    #define STRING_UCP_RIGHTPAR            STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1467    #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
1468    
1469  #endif  /* SUPPORT_UTF8 */  #endif  /* SUPPORT_UTF */
1470    
1471  /* Escape items that are just an encoding of a particular data value. */  /* Escape items that are just an encoding of a particular data value. */
1472    
# Line 1169  only. */ Line 1497  only. */
1497    
1498  #define PT_ANY        0    /* Any property - matches all chars */  #define PT_ANY        0    /* Any property - matches all chars */
1499  #define PT_LAMP       1    /* L& - the union of Lu, Ll, Lt */  #define PT_LAMP       1    /* L& - the union of Lu, Ll, Lt */
1500  #define PT_GC         2    /* General characteristic (e.g. L) */  #define PT_GC         2    /* Specified general characteristic (e.g. L) */
1501  #define PT_PC         3    /* Particular characteristic (e.g. Lu) */  #define PT_PC         3    /* Specified particular characteristic (e.g. Lu) */
1502  #define PT_SC         4    /* Script (e.g. Han) */  #define PT_SC         4    /* Script (e.g. Han) */
1503    #define PT_ALNUM      5    /* Alphanumeric - the union of L and N */
1504    #define PT_SPACE      6    /* Perl space - Z plus 9,10,12,13 */
1505    #define PT_PXSPACE    7    /* POSIX space - Z plus 9,10,11,12,13 */
1506    #define PT_WORD       8    /* Word - L plus N plus underscore */
1507    
1508  /* 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
1509  contain UTF-8 characters with values greater than 255. */  contain characters with values greater than 255. */
1510    
1511  #define XCL_NOT    0x01    /* Flag: this is a negative class */  #define XCL_NOT    0x01    /* Flag: this is a negative class */
1512  #define XCL_MAP    0x02    /* Flag: a 32-byte map is present */  #define XCL_MAP    0x02    /* Flag: a 32-byte map is present */
# Line 1188  contain UTF-8 characters with values gre Line 1520  contain UTF-8 characters with values gre
1520  /* 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
1521  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
1522  their negation. Also, they must appear in the same order as in the opcode  their negation. Also, they must appear in the same order as in the opcode
1523  definitions below, up to ESC_z. There's a dummy for OP_ANY because it  definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1524  corresponds to "." rather than an escape sequence, and another for OP_ALLANY  corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1525  (which is used for [^] in JavaScript compatibility mode).  used for [^] in JavaScript compatibility mode, and for \C in non-utf mode. In
1526    non-DOTALL mode, "." behaves like \N.
1527    
1528    The special values ESC_DU, ESC_du, etc. are used instead of ESC_D, ESC_d, etc.
1529    when PCRE_UCP is set, when replacement of \d etc by \p sequences is required.
1530    They must be contiguous, and remain in order so that the replacements can be
1531    looked up from a table.
1532    
1533  The final escape must be ESC_REF as subsequent values are used for  The final escape must be ESC_REF as subsequent values are used for
1534  backreferences (\1, \2, \3, etc). There are two tests in the code for an escape  backreferences (\1, \2, \3, etc). There are two tests in the code for an escape
# Line 1200  put in between that don't consume a char Line 1538  put in between that don't consume a char
1538  */  */
1539    
1540  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1541         ESC_W, ESC_w, ESC_dum1, ESC_dum2, 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,
1542         ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z, ESC_E, ESC_Q, ESC_g, ESC_k,         ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z,
1543           ESC_E, ESC_Q, ESC_g, ESC_k,
1544           ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu,
1545         ESC_REF };         ESC_REF };
1546    
   
1547  /* 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
1548  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.
1549    
1550  *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions  *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
1551  that follow must also be updated to match. There is also a table called  that follow must also be updated to match. There are also tables called
1552  "coptable" in pcre_dfa_exec.c that must be updated. */  "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1553    
1554  enum {  enum {
1555    OP_END,            /* 0 End of pattern */    OP_END,            /* 0 End of pattern */
# Line 1228  enum { Line 1567  enum {
1567    OP_WHITESPACE,         /*  9 \s */    OP_WHITESPACE,         /*  9 \s */
1568    OP_NOT_WORDCHAR,       /* 10 \W */    OP_NOT_WORDCHAR,       /* 10 \W */
1569    OP_WORDCHAR,           /* 11 \w */    OP_WORDCHAR,           /* 11 \w */
1570    OP_ANY,            /* 12 Match any character (subject to DOTALL) */  
1571    OP_ALLANY,         /* 13 Match any character (not subject to DOTALL) */    OP_ANY,            /* 12 Match any character except newline */
1572      OP_ALLANY,         /* 13 Match any character */
1573    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 */
1574    OP_NOTPROP,        /* 15 \P (not Unicode property) */    OP_NOTPROP,        /* 15 \P (not Unicode property) */
1575    OP_PROP,           /* 16 \p (Unicode property) */    OP_PROP,           /* 16 \p (Unicode property) */
# Line 1242  enum { Line 1582  enum {
1582    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. */
1583    OP_EOD,            /* 24 End of data: \z */    OP_EOD,            /* 24 End of data: \z */
1584    
1585    OP_OPT,            /* 25 Set runtime options */    OP_CIRC,           /* 25 Start of line - not multiline */
1586    OP_CIRC,           /* 26 Start of line - varies with multiline switch */    OP_CIRCM,          /* 26 Start of line - multiline */
1587    OP_DOLL,           /* 27 End of line - varies with multiline switch */    OP_DOLL,           /* 27 End of line - not multiline */
1588    OP_CHAR,           /* 28 Match one character, casefully */    OP_DOLLM,          /* 28 End of line - multiline */
1589    OP_CHARNC,         /* 29 Match one character, caselessly */    OP_CHAR,           /* 29 Match one character, casefully */
1590    OP_NOT,            /* 30 Match one character, not the following one */    OP_CHARI,          /* 30 Match one character, caselessly */
1591      OP_NOT,            /* 31 Match one character, not the given one, casefully */
1592    OP_STAR,           /* 31 The maximizing and minimizing versions of */    OP_NOTI,           /* 32 Match one character, not the given one, caselessly */
1593    OP_MINSTAR,        /* 32 these six opcodes must come in pairs, with */  
1594    OP_PLUS,           /* 33 the minimizing one second. */    /* The following sets of 13 opcodes must always be kept in step because
1595    OP_MINPLUS,        /* 34 This first set applies to single characters.*/    the offset from the first one is used to generate the others. */
1596    OP_QUERY,          /* 35 */  
1597    OP_MINQUERY,       /* 36 */    /**** Single characters, caseful, must precede the caseless ones ****/
1598    
1599    OP_UPTO,           /* 37 From 0 to n matches */    OP_STAR,           /* 33 The maximizing and minimizing versions of */
1600    OP_MINUPTO,        /* 38 */    OP_MINSTAR,        /* 34 these six opcodes must come in pairs, with */
1601    OP_EXACT,          /* 39 Exactly n matches */    OP_PLUS,           /* 35 the minimizing one second. */
1602      OP_MINPLUS,        /* 36 */
1603    OP_POSSTAR,        /* 40 Possessified star */    OP_QUERY,          /* 37 */
1604    OP_POSPLUS,        /* 41 Possessified plus */    OP_MINQUERY,       /* 38 */
1605    OP_POSQUERY,       /* 42 Posesssified query */  
1606    OP_POSUPTO,        /* 43 Possessified upto */    OP_UPTO,           /* 39 From 0 to n matches of one character, caseful*/
1607      OP_MINUPTO,        /* 40 */
1608    OP_NOTSTAR,        /* 44 The maximizing and minimizing versions of */    OP_EXACT,          /* 41 Exactly n matches */
1609    OP_NOTMINSTAR,     /* 45 these six opcodes must come in pairs, with */  
1610    OP_NOTPLUS,        /* 46 the minimizing one second. They must be in */    OP_POSSTAR,        /* 42 Possessified star, caseful */
1611    OP_NOTMINPLUS,     /* 47 exactly the same order as those above. */    OP_POSPLUS,        /* 43 Possessified plus, caseful */
1612    OP_NOTQUERY,       /* 48 This set applies to "not" single characters. */    OP_POSQUERY,       /* 44 Posesssified query, caseful */
1613    OP_NOTMINQUERY,    /* 49 */    OP_POSUPTO,        /* 45 Possessified upto, caseful */
1614    
1615    OP_NOTUPTO,        /* 50 From 0 to n matches */    /**** Single characters, caseless, must follow the caseful ones */
1616    OP_NOTMINUPTO,     /* 51 */  
1617    OP_NOTEXACT,       /* 52 Exactly n matches */    OP_STARI,          /* 46 */
1618      OP_MINSTARI,       /* 47 */
1619    OP_NOTPOSSTAR,     /* 53 Possessified versions */    OP_PLUSI,          /* 48 */
1620    OP_NOTPOSPLUS,     /* 54 */    OP_MINPLUSI,       /* 49 */
1621    OP_NOTPOSQUERY,    /* 55 */    OP_QUERYI,         /* 50 */
1622    OP_NOTPOSUPTO,     /* 56 */    OP_MINQUERYI,      /* 51 */
1623    
1624    OP_TYPESTAR,       /* 57 The maximizing and minimizing versions of */    OP_UPTOI,          /* 52 From 0 to n matches of one character, caseless */
1625    OP_TYPEMINSTAR,    /* 58 these six opcodes must come in pairs, with */    OP_MINUPTOI,       /* 53 */
1626    OP_TYPEPLUS,       /* 59 the minimizing one second. These codes must */    OP_EXACTI,         /* 54 */
1627    OP_TYPEMINPLUS,    /* 60 be in exactly the same order as those above. */  
1628    OP_TYPEQUERY,      /* 61 This set applies to character types such as \d */    OP_POSSTARI,       /* 55 Possessified star, caseless */
1629    OP_TYPEMINQUERY,   /* 62 */    OP_POSPLUSI,       /* 56 Possessified plus, caseless */
1630      OP_POSQUERYI,      /* 57 Posesssified query, caseless */
1631    OP_TYPEUPTO,       /* 63 From 0 to n matches */    OP_POSUPTOI,       /* 58 Possessified upto, caseless */
1632    OP_TYPEMINUPTO,    /* 64 */  
1633    OP_TYPEEXACT,      /* 65 Exactly n matches */    /**** The negated ones must follow the non-negated ones, and match them ****/
1634      /**** Negated single character, caseful; must precede the caseless ones ****/
1635    OP_TYPEPOSSTAR,    /* 66 Possessified versions */  
1636    OP_TYPEPOSPLUS,    /* 67 */    OP_NOTSTAR,        /* 59 The maximizing and minimizing versions of */
1637    OP_TYPEPOSQUERY,   /* 68 */    OP_NOTMINSTAR,     /* 60 these six opcodes must come in pairs, with */
1638    OP_TYPEPOSUPTO,    /* 69 */    OP_NOTPLUS,        /* 61 the minimizing one second. They must be in */
1639      OP_NOTMINPLUS,     /* 62 exactly the same order as those above. */
1640    OP_CRSTAR,         /* 70 The maximizing and minimizing versions of */    OP_NOTQUERY,       /* 63 */
1641    OP_CRMINSTAR,      /* 71 all these opcodes must come in pairs, with */    OP_NOTMINQUERY,    /* 64 */
1642    OP_CRPLUS,         /* 72 the minimizing one second. These codes must */  
1643    OP_CRMINPLUS,      /* 73 be in exactly the same order as those above. */    OP_NOTUPTO,        /* 65 From 0 to n matches, caseful */
1644    OP_CRQUERY,        /* 74 These are for character classes and back refs */    OP_NOTMINUPTO,     /* 66 */
1645    OP_CRMINQUERY,     /* 75 */    OP_NOTEXACT,       /* 67 Exactly n matches */
1646    OP_CRRANGE,        /* 76 These are different to the three sets above. */  
1647    OP_CRMINRANGE,     /* 77 */    OP_NOTPOSSTAR,     /* 68 Possessified versions, caseful */
1648      OP_NOTPOSPLUS,     /* 69 */
1649    OP_CLASS,          /* 78 Match a character class, chars < 256 only */    OP_NOTPOSQUERY,    /* 70 */
1650    OP_NCLASS,         /* 79 Same, but the bitmap was created from a negative    OP_NOTPOSUPTO,     /* 71 */
1651                             class - the difference is relevant only when a UTF-8  
1652                             character > 255 is encountered. */    /**** Negated single character, caseless; must follow the caseful ones ****/
1653    
1654    OP_XCLASS,         /* 80 Extended class for handling UTF-8 chars within the    OP_NOTSTARI,       /* 72 */
1655                             class. This does both positive and negative. */    OP_NOTMINSTARI,    /* 73 */
1656      OP_NOTPLUSI,       /* 74 */
1657    OP_REF,            /* 81 Match a back reference */    OP_NOTMINPLUSI,    /* 75 */
1658    OP_RECURSE,        /* 82 Match a numbered subpattern (possibly recursive) */    OP_NOTQUERYI,      /* 76 */
1659    OP_CALLOUT,        /* 83 Call out to external function if provided */    OP_NOTMINQUERYI,   /* 77 */
1660    
1661    OP_ALT,            /* 84 Start of alternation */    OP_NOTUPTOI,       /* 78 From 0 to n matches, caseless */
1662    OP_KET,            /* 85 End of group that doesn't have an unbounded repeat */    OP_NOTMINUPTOI,    /* 79 */
1663    OP_KETRMAX,        /* 86 These two must remain together and in this */    OP_NOTEXACTI,      /* 80 Exactly n matches */
1664    OP_KETRMIN,        /* 87 order. They are for groups the repeat for ever. */  
1665      OP_NOTPOSSTARI,    /* 81 Possessified versions, caseless */
1666    /* The assertions must come before BRA, CBRA, ONCE, and COND.*/    OP_NOTPOSPLUSI,    /* 82 */
1667      OP_NOTPOSQUERYI,   /* 83 */
1668    OP_ASSERT,         /* 88 Positive lookahead */    OP_NOTPOSUPTOI,    /* 84 */
1669    OP_ASSERT_NOT,     /* 89 Negative lookahead */  
1670    OP_ASSERTBACK,     /* 90 Positive lookbehind */    /**** Character types ****/
1671    OP_ASSERTBACK_NOT, /* 91 Negative lookbehind */  
1672    OP_REVERSE,        /* 92 Move pointer back - used in lookbehind assertions */    OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */
1673      OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */
1674    /* ONCE, BRA, CBRA, and COND must come after the assertions, with ONCE first,    OP_TYPEPLUS,       /* 87 the minimizing one second. These codes must */
1675    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. */
1676      OP_TYPEQUERY,      /* 89 */
1677    OP_ONCE,           /* 93 Atomic group */    OP_TYPEMINQUERY,   /* 90 */
1678    OP_BRA,            /* 94 Start of non-capturing bracket */  
1679    OP_CBRA,           /* 95 Start of capturing bracket */    OP_TYPEUPTO,       /* 91 From 0 to n matches */
1680    OP_COND,           /* 96 Conditional group */    OP_TYPEMINUPTO,    /* 92 */
1681      OP_TYPEEXACT,      /* 93 Exactly n matches */
1682    
1683      OP_TYPEPOSSTAR,    /* 94 Possessified versions */
1684      OP_TYPEPOSPLUS,    /* 95 */
1685      OP_TYPEPOSQUERY,   /* 96 */
1686      OP_TYPEPOSUPTO,    /* 97 */
1687    
1688      /* These are used for character classes and back references; only the
1689      first six are the same as the sets above. */
1690    
1691      OP_CRSTAR,         /* 98 The maximizing and minimizing versions of */
1692      OP_CRMINSTAR,      /* 99 all these opcodes must come in pairs, with */
1693      OP_CRPLUS,         /* 100 the minimizing one second. These codes must */
1694      OP_CRMINPLUS,      /* 101 be in exactly the same order as those above. */
1695      OP_CRQUERY,        /* 102 */
1696      OP_CRMINQUERY,     /* 103 */
1697    
1698      OP_CRRANGE,        /* 104 These are different to the three sets above. */
1699      OP_CRMINRANGE,     /* 105 */
1700    
1701      /* End of quantifier opcodes */
1702    
1703      OP_CLASS,          /* 106 Match a character class, chars < 256 only */
1704      OP_NCLASS,         /* 107 Same, but the bitmap was created from a negative
1705                                  class - the difference is relevant only when a
1706                                  character > 255 is encountered. */
1707      OP_XCLASS,         /* 108 Extended class for handling > 255 chars within the
1708                                  class. This does both positive and negative. */
1709      OP_REF,            /* 109 Match a back reference, casefully */
1710      OP_REFI,           /* 110 Match a back reference, caselessly */
1711      OP_RECURSE,        /* 111 Match a numbered subpattern (possibly recursive) */
1712      OP_CALLOUT,        /* 112 Call out to external function if provided */
1713    
1714      OP_ALT,            /* 113 Start of alternation */
1715      OP_KET,            /* 114 End of group that doesn't have an unbounded repeat */
1716      OP_KETRMAX,        /* 115 These two must remain together and in this */
1717      OP_KETRMIN,        /* 116 order. They are for groups the repeat for ever. */
1718      OP_KETRPOS,        /* 117 Possessive unlimited repeat. */
1719    
1720      /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
1721      asserts must remain in order. */
1722    
1723      OP_REVERSE,        /* 118 Move pointer back - used in lookbehind assertions */
1724      OP_ASSERT,         /* 119 Positive lookahead */
1725      OP_ASSERT_NOT,     /* 120 Negative lookahead */
1726      OP_ASSERTBACK,     /* 121 Positive lookbehind */
1727      OP_ASSERTBACK_NOT, /* 122 Negative lookbehind */
1728    
1729      /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
1730      after the assertions, with ONCE first, as there's a test for >= ONCE for a
1731      subpattern that isn't an assertion. The POS versions must immediately follow
1732      the non-POS versions in each case. */
1733    
1734      OP_ONCE,           /* 123 Atomic group, contains captures */
1735      OP_ONCE_NC,        /* 124 Atomic group containing no captures */
1736      OP_BRA,            /* 125 Start of non-capturing bracket */
1737      OP_BRAPOS,         /* 126 Ditto, with unlimited, possessive repeat */
1738      OP_CBRA,           /* 127 Start of capturing bracket */
1739      OP_CBRAPOS,        /* 128 Ditto, with unlimited, possessive repeat */
1740      OP_COND,           /* 129 Conditional group */
1741    
1742    /* 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
1743    check for >= SBRA to distinguish the two sets. */    check for >= SBRA to distinguish the two sets. */
1744    
1745    OP_SBRA,           /* 97 Start of non-capturing bracket, check empty  */    OP_SBRA,           /* 130 Start of non-capturing bracket, check empty  */
1746    OP_SCBRA,          /* 98 Start of capturing bracket, check empty */    OP_SBRAPOS,        /* 131 Ditto, with unlimited, possessive repeat */
1747    OP_SCOND,          /* 99 Conditional group, check empty */    OP_SCBRA,          /* 132 Start of capturing bracket, check empty */
1748      OP_SCBRAPOS,       /* 133 Ditto, with unlimited, possessive repeat */
1749    OP_CREF,           /* 100 Used to hold a capture number as condition */    OP_SCOND,          /* 134 Conditional group, check empty */
1750    OP_RREF,           /* 101 Used to hold a recursion number as condition */  
1751    OP_DEF,            /* 102 The DEFINE condition */    /* The next two pairs must (respectively) be kept together. */
1752    
1753    OP_BRAZERO,        /* 103 These two must remain together and in this */    OP_CREF,           /* 135 Used to hold a capture number as condition */
1754    OP_BRAMINZERO,     /* 104 order. */    OP_NCREF,          /* 136 Same, but generated by a name reference*/
1755      OP_RREF,           /* 137 Used to hold a recursion number as condition */
1756      OP_NRREF,          /* 138 Same, but generated by a name reference*/
1757      OP_DEF,            /* 139 The DEFINE condition */
1758    
1759      OP_BRAZERO,        /* 140 These two must remain together and in this */
1760      OP_BRAMINZERO,     /* 141 order. */
1761      OP_BRAPOSZERO,     /* 142 */
1762    
1763    /* These are backtracking control verbs */    /* These are backtracking control verbs */
1764    
1765    OP_PRUNE,          /* 105 */    OP_MARK,           /* 143 always has an argument */
1766    OP_SKIP,           /* 106 */    OP_PRUNE,          /* 144 */
1767    OP_THEN,           /* 107 */    OP_PRUNE_ARG,      /* 145 same, but with argument */
1768    OP_COMMIT,         /* 108 */    OP_SKIP,           /* 146 */
1769      OP_SKIP_ARG,       /* 147 same, but with argument */
1770      OP_THEN,           /* 148 */
1771      OP_THEN_ARG,       /* 149 same, but with argument */
1772      OP_COMMIT,         /* 150 */
1773    
1774    /* These are forced failure and success verbs */    /* These are forced failure and success verbs */
1775    
1776    OP_FAIL,           /* 109 */    OP_FAIL,           /* 151 */
1777    OP_ACCEPT,         /* 110 */    OP_ACCEPT,         /* 152 */
1778      OP_ASSERT_ACCEPT,  /* 153 Used inside assertions */
1779      OP_CLOSE,          /* 154 Used before OP_ACCEPT to close open captures */
1780    
1781    /* This is used to skip a subpattern with a {0} quantifier */    /* This is used to skip a subpattern with a {0} quantifier */
1782    
1783    OP_SKIPZERO        /* 111 */    OP_SKIPZERO,       /* 155 */
1784    
1785      /* This is not an opcode, but is used to check that tables indexed by opcode
1786      are the correct length, in order to catch updating errors - there have been
1787      some in the past. */
1788    
1789      OP_TABLE_LENGTH
1790  };  };
1791    
1792    /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
1793    definitions that follow must also be updated to match. There are also tables
1794    called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1795    
1796    
1797  /* 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
1798  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
1799    only in pcre_printint.c, which fills out the full names in many cases (and in
1800    some cases doesn't actually use these names at all). */
1801    
1802  #define OP_NAME_LIST \  #define OP_NAME_LIST \
1803    "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \    "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \
1804    "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \    "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \
1805    "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \    "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \
1806    "extuni",  "\\Z", "\\z",                                        \    "extuni",  "\\Z", "\\z",                                        \
1807    "Opt", "^", "$", "char", "charnc", "not",                       \    "^", "^", "$", "$", "char", "chari", "not", "noti",             \
1808    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??",                                \
1809      "{", "{", "{",                                                  \
1810    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
1811    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??",                                \
1812      "{", "{", "{",                                                  \
1813      "*+","++", "?+", "{",                                           \
1814      "*", "*?", "+", "+?", "?", "??",                                \
1815      "{", "{", "{",                                                  \
1816      "*+","++", "?+", "{",                                           \
1817      "*", "*?", "+", "+?", "?", "??",                                \
1818      "{", "{", "{",                                                  \
1819    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
1820    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
1821    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
1822    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \
1823    "class", "nclass", "xclass", "Ref", "Recurse", "Callout",       \    "class", "nclass", "xclass", "Ref", "Refi",                     \
1824    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \    "Recurse", "Callout",                                           \
1825    "AssertB", "AssertB not", "Reverse",                            \    "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos",                  \
1826    "Once", "Bra", "CBra", "Cond", "SBra", "SCBra", "SCond",        \    "Reverse", "Assert", "Assert not", "AssertB", "AssertB not",    \
1827    "Cond ref", "Cond rec", "Cond def", "Brazero", "Braminzero",    \    "Once", "Once_NC",                                              \
1828    "*PRUNE", "*SKIP", "*THEN", "*COMMIT", "*FAIL", "*ACCEPT",      \    "Bra", "BraPos", "CBra", "CBraPos",                             \
1829    "Skip zero"    "Cond",                                                         \
1830      "SBra", "SBraPos", "SCBra", "SCBraPos",                         \
1831      "SCond",                                                        \
1832      "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def",   \
1833      "Brazero", "Braminzero", "Braposzero",                          \
1834      "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \
1835      "*THEN", "*THEN", "*COMMIT", "*FAIL",                           \
1836      "*ACCEPT", "*ASSERT_ACCEPT",                                    \
1837      "Close", "Skip zero"
1838    
1839    
1840  /* This macro defines the length of fixed length operations in the compiled  /* This macro defines the length of fixed length operations in the compiled
# Line 1410  in UTF-8 mode. The code that uses this t Line 1851  in UTF-8 mode. The code that uses this t
1851    1, 1, 1, 1, 1,                 /* \A, \G, \K, \B, \b                     */ \    1, 1, 1, 1, 1,                 /* \A, \G, \K, \B, \b                     */ \
1852    1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \    1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \
1853    1, 1, 1,                       /* Any, AllAny, Anybyte                   */ \    1, 1, 1,                       /* Any, AllAny, Anybyte                   */ \
1854    3, 3, 1,                       /* NOTPROP, PROP, EXTUNI                  */ \    3, 3,                          /* \P, \p                                 */ \
1855    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
1856    1, 1, 2, 1, 1,                 /* \Z, \z, Opt, ^, $                      */ \    1,                             /* \X                                     */ \
1857      1, 1, 1, 1, 1, 1,              /* \Z, \z, ^, ^M, $, $M                   */ \
1858    2,                             /* Char  - the minimum length             */ \    2,                             /* Char  - the minimum length             */ \
1859    2,                             /* Charnc  - the minimum length           */ \    2,                             /* Chari  - the minimum length            */ \
1860    2,                             /* not                                    */ \    2,                             /* not                                    */ \
1861    /* Positive single-char repeats                            ** These are  */ \    2,                             /* noti                                   */ \
1862    2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??      ** minima in  */ \    /* Positive single-char repeats                             ** These are */ \
1863    4, 4, 4,                       /* upto, minupto, exact     ** UTF-8 mode */ \    2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??       ** minima in */ \
1864    2, 2, 2, 4,                    /* *+, ++, ?+, upto+                      */ \    2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto, minupto             ** mode      */ \
1865      2+IMM2_SIZE,                   /* exact                                  */ \
1866      2, 2, 2, 2+IMM2_SIZE,          /* *+, ++, ?+, upto+                      */ \
1867      2, 2, 2, 2, 2, 2,              /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8     */ \
1868      2+IMM2_SIZE, 2+IMM2_SIZE,      /* upto I, minupto I                      */ \
1869      2+IMM2_SIZE,                   /* exact I                                */ \
1870      2, 2, 2, 2+IMM2_SIZE,          /* *+I, ++I, ?+I, upto+I                  */ \
1871    /* Negative single-char repeats - only for chars < 256                   */ \    /* Negative single-char repeats - only for chars < 256                   */ \
1872    2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \    2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \
1873    4, 4, 4,                       /* NOT upto, minupto, exact               */ \    2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto, minupto                      */ \
1874    2, 2, 2, 4,                    /* Possessive *, +, ?, upto               */ \    2+IMM2_SIZE,                   /* NOT exact                              */ \
1875      2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *, +, ?, upto           */ \
1876      2, 2, 2, 2, 2, 2,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */ \
1877      2+IMM2_SIZE, 2+IMM2_SIZE,      /* NOT upto I, minupto I                  */ \
1878      2+IMM2_SIZE,                   /* NOT exact I                            */ \
1879      2, 2, 2, 2+IMM2_SIZE,          /* Possessive NOT *I, +I, ?I, upto I      */ \
1880    /* Positive type repeats                                                 */ \    /* Positive type repeats                                                 */ \
1881    2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \    2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \
1882    4, 4, 4,                       /* Type upto, minupto, exact              */ \    2+IMM2_SIZE, 2+IMM2_SIZE,      /* Type upto, minupto                     */ \
1883    2, 2, 2, 4,                    /* Possessive *+, ++, ?+, upto+           */ \    2+IMM2_SIZE,                   /* Type exact                             */ \
1884      2, 2, 2, 2+IMM2_SIZE,          /* Possessive *+, ++, ?+, upto+           */ \
1885    /* Character class & ref repeats                                         */ \    /* Character class & ref repeats                                         */ \
1886    1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \    1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \
1887    5, 5,                          /* CRRANGE, CRMINRANGE                    */ \    1+2*IMM2_SIZE, 1+2*IMM2_SIZE,  /* CRRANGE, CRMINRANGE                    */ \
1888   33,                             /* CLASS                                  */ \    1+(32/sizeof(pcre_uchar)),     /* CLASS                                  */ \
1889   33,                             /* NCLASS                                 */ \    1+(32/sizeof(pcre_uchar)),     /* NCLASS                                 */ \
1890    0,                             /* XCLASS - variable length               */ \    0,                             /* XCLASS - variable length               */ \
1891    3,                             /* REF                                    */ \    1+IMM2_SIZE,                   /* REF                                    */ \
1892      1+IMM2_SIZE,                   /* REFI                                   */ \
1893    1+LINK_SIZE,                   /* RECURSE                                */ \    1+LINK_SIZE,                   /* RECURSE                                */ \
1894    2+2*LINK_SIZE,                 /* CALLOUT                                */ \    2+2*LINK_SIZE,                 /* CALLOUT                                */ \
1895    1+LINK_SIZE,                   /* Alt                                    */ \    1+LINK_SIZE,                   /* Alt                                    */ \
1896    1+LINK_SIZE,                   /* Ket                                    */ \    1+LINK_SIZE,                   /* Ket                                    */ \
1897    1+LINK_SIZE,                   /* KetRmax                                */ \    1+LINK_SIZE,                   /* KetRmax                                */ \
1898    1+LINK_SIZE,                   /* KetRmin                                */ \    1+LINK_SIZE,                   /* KetRmin                                */ \
1899      1+LINK_SIZE,                   /* KetRpos                                */ \
1900      1+LINK_SIZE,                   /* Reverse                                */ \
1901    1+LINK_SIZE,                   /* Assert                                 */ \    1+LINK_SIZE,                   /* Assert                                 */ \
1902    1+LINK_SIZE,                   /* Assert not                             */ \    1+LINK_SIZE,                   /* Assert not                             */ \
1903    1+LINK_SIZE,                   /* Assert behind                          */ \    1+LINK_SIZE,                   /* Assert behind                          */ \
1904    1+LINK_SIZE,                   /* Assert behind not                      */ \    1+LINK_SIZE,                   /* Assert behind not                      */ \
   1+LINK_SIZE,                   /* Reverse                                */ \  
1905    1+LINK_SIZE,                   /* ONCE                                   */ \    1+LINK_SIZE,                   /* ONCE                                   */ \
1906      1+LINK_SIZE,                   /* ONCE_NC                                */ \
1907    1+LINK_SIZE,                   /* BRA                                    */ \    1+LINK_SIZE,                   /* BRA                                    */ \
1908    3+LINK_SIZE,                   /* CBRA                                   */ \    1+LINK_SIZE,                   /* BRAPOS                                 */ \
1909      1+LINK_SIZE+IMM2_SIZE,         /* CBRA                                   */ \
1910      1+LINK_SIZE+IMM2_SIZE,         /* CBRAPOS                                */ \
1911    1+LINK_SIZE,                   /* COND                                   */ \    1+LINK_SIZE,                   /* COND                                   */ \
1912    1+LINK_SIZE,                   /* SBRA                                   */ \    1+LINK_SIZE,                   /* SBRA                                   */ \
1913    3+LINK_SIZE,                   /* SCBRA                                  */ \    1+LINK_SIZE,                   /* SBRAPOS                                */ \
1914      1+LINK_SIZE+IMM2_SIZE,         /* SCBRA                                  */ \
1915      1+LINK_SIZE+IMM2_SIZE,         /* SCBRAPOS                               */ \
1916    1+LINK_SIZE,                   /* SCOND                                  */ \    1+LINK_SIZE,                   /* SCOND                                  */ \
1917    3,                             /* CREF                                   */ \    1+IMM2_SIZE, 1+IMM2_SIZE,      /* CREF, NCREF                            */ \
1918    3,                             /* RREF                                   */ \    1+IMM2_SIZE, 1+IMM2_SIZE,      /* RREF, NRREF                            */ \
1919    1,                             /* DEF                                    */ \    1,                             /* DEF                                    */ \
1920    1, 1,                          /* BRAZERO, BRAMINZERO                    */ \    1, 1, 1,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */ \
1921    1, 1, 1, 1,                    /* PRUNE, SKIP, THEN, COMMIT,             */ \    3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \
1922    1, 1, 1                        /* FAIL, ACCEPT, SKIPZERO                 */    1, 3,                          /* SKIP, SKIP_ARG                         */ \
1923      1, 3,                          /* THEN, THEN_ARG                         */ \
1924      1, 1, 1, 1,                    /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT    */ \
1925      1+IMM2_SIZE, 1                 /* CLOSE, SKIPZERO                        */
1926    
1927  /* A magic value for OP_RREF to indicate the "any recursion" condition. */  /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
1928    condition. */
1929    
1930  #define RREF_ANY  0xffff  #define RREF_ANY  0xffff
1931    
1932  /* Error code numbers. They are given names so that they can more easily be  /* Compile time error code numbers. They are given names so that they can more
1933  tracked. */  easily be tracked. When a new number is added, the table called eint in
1934    pcreposix.c must be updated. */
1935    
1936  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,  ERR5,  ERR6,  ERR7,  ERR8,  ERR9,  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,  ERR5,  ERR6,  ERR7,  ERR8,  ERR9,
1937         ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,         ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
# Line 1474  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4, Line 1939  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,
1939         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
1940         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
1941         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
1942         ERR60, ERR61, ERR62, ERR63, ERR64 };         ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
1943           ERR70, ERR71, ERR72, ERR73, ERR74, ERRCOUNT };
1944    
1945    /* JIT compiling modes. The function list is indexed by them. */
1946    enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
1947           JIT_NUMBER_OF_COMPILE_MODES };
1948    
1949  /* 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
1950  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 1490  Because people can now save and re-use c Line 1960  Because people can now save and re-use c
1960  structure should be made at the end, and something earlier (e.g. a new  structure should be made at the end, and something earlier (e.g. a new
1961  flag in the options or one of the dummy fields) should indicate that the new  flag in the options or one of the dummy fields) should indicate that the new
1962  fields are present. Currently PCRE always sets the dummy fields to zero.  fields are present. Currently PCRE always sets the dummy fields to zero.
1963  NOTE NOTE NOTE:  NOTE NOTE NOTE
1964  */  */
1965    
1966  typedef struct real_pcre {  #ifdef COMPILE_PCRE8
1967    #define REAL_PCRE real_pcre
1968    #else
1969    #define REAL_PCRE real_pcre16
1970    #endif
1971    
1972    typedef struct REAL_PCRE {
1973    pcre_uint32 magic_number;    pcre_uint32 magic_number;
1974    pcre_uint32 size;               /* Total that was malloced */    pcre_uint32 size;               /* Total that was malloced */
1975    pcre_uint32 options;            /* Public options */    pcre_uint32 options;            /* Public options */
# Line 1501  typedef struct real_pcre { Line 1977  typedef struct real_pcre {
1977    pcre_uint16 dummy1;             /* For future use */    pcre_uint16 dummy1;             /* For future use */
1978    pcre_uint16 top_bracket;    pcre_uint16 top_bracket;
1979    pcre_uint16 top_backref;    pcre_uint16 top_backref;
1980    pcre_uint16 first_byte;    pcre_uint16 first_char;         /* Starting character */
1981    pcre_uint16 req_byte;    pcre_uint16 req_char;           /* This character must be seen */
1982    pcre_uint16 name_table_offset;  /* Offset to name table that follows */    pcre_uint16 name_table_offset;  /* Offset to name table that follows */
1983    pcre_uint16 name_entry_size;    /* Size of any name items */    pcre_uint16 name_entry_size;    /* Size of any name items */
1984    pcre_uint16 name_count;         /* Number of name items */    pcre_uint16 name_count;         /* Number of name items */
1985    pcre_uint16 ref_count;          /* Reference count */    pcre_uint16 ref_count;          /* Reference count */
1986    
1987    const unsigned char *tables;    /* Pointer to tables or NULL for std */    const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */
1988    const unsigned char *nullpad;   /* NULL padding */    const pcre_uint8 *nullpad;      /* NULL padding */
1989  } real_pcre;  } REAL_PCRE;
1990    
1991  /* 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
1992  remark (see NOTE above) about extending this structure applies. */  remark (see NOTE above) about extending this structure applies. */
1993    
1994  typedef struct pcre_study_data {  typedef struct pcre_study_data {
1995    pcre_uint32 size;               /* Total that was malloced */    pcre_uint32 size;               /* Total that was malloced */
1996    pcre_uint32 options;    pcre_uint32 flags;              /* Private flags */
1997    uschar start_bits[32];    pcre_uint8 start_bits[32];      /* Starting char bits */
1998      pcre_uint32 minlength;          /* Minimum subject length */
1999  } pcre_study_data;  } pcre_study_data;
2000    
2001    /* Structure for building a chain of open capturing subpatterns during
2002    compiling, so that instructions to close them can be compiled when (*ACCEPT) is
2003    encountered. This is also used to identify subpatterns that contain recursive
2004    back references to themselves, so that they can be made atomic. */
2005    
2006    typedef struct open_capitem {
2007      struct open_capitem *next;    /* Chain link */
2008      pcre_uint16 number;           /* Capture number */
2009      pcre_uint16 flag;             /* Set TRUE if recursive back ref */
2010    } open_capitem;
2011    
2012  /* Structure for passing "static" information around between the functions  /* Structure for passing "static" information around between the functions
2013  doing the compiling, so that they are thread-safe. */  doing the compiling, so that they are thread-safe. */
2014    
2015  typedef struct compile_data {  typedef struct compile_data {
2016    const uschar *lcc;            /* Points to lower casing table */    const pcre_uint8 *lcc;            /* Points to lower casing table */
2017    const uschar *fcc;            /* Points to case-flipping table */    const pcre_uint8 *fcc;            /* Points to case-flipping table */
2018    const uschar *cbits;          /* Points to character type table */    const pcre_uint8 *cbits;          /* Points to character type table */
2019    const uschar *ctypes;         /* Points to table of type maps */    const pcre_uint8 *ctypes;         /* Points to table of type maps */
2020    const uschar *start_workspace;/* The start of working space */    const pcre_uchar *start_workspace;/* The start of working space */
2021    const uschar *start_code;     /* The start of the compiled code */    const pcre_uchar *start_code;     /* The start of the compiled code */
2022    const uschar *start_pattern;  /* The start of the pattern */    const pcre_uchar *start_pattern;  /* The start of the pattern */
2023    const uschar *end_pattern;    /* The end of the pattern */    const pcre_uchar *end_pattern;    /* The end of the pattern */
2024    uschar *hwm;                  /* High watermark of workspace */    open_capitem *open_caps;          /* Chain of open capture items */
2025    uschar *name_table;           /* The name/number table */    pcre_uchar *hwm;                  /* High watermark of workspace */
2026    int  names_found;             /* Number of entries so far */    pcre_uchar *name_table;           /* The name/number table */
2027    int  name_entry_size;         /* Size of each entry */    int  names_found;                 /* Number of entries so far */
2028    int  bracount;                /* Count of capturing parens as we compile */    int  name_entry_size;             /* Size of each entry */
2029    int  final_bracount;          /* Saved value after first pass */    int  workspace_size;              /* Size of workspace */
2030    int  top_backref;             /* Maximum back reference */    int  bracount;                    /* Count of capturing parens as we compile */
2031    unsigned int backref_map;     /* Bitmap of low back refs */    int  final_bracount;              /* Saved value after first pass */
2032    int  external_options;        /* External (initial) options */    int  top_backref;                 /* Maximum back reference */
2033    int  external_flags;          /* External flag bits to be set */    unsigned int backref_map;         /* Bitmap of low back refs */
2034    int  req_varyopt;             /* "After variable item" flag for reqbyte */    int  assert_depth;                /* Depth of nested assertions */
2035    BOOL had_accept;              /* (*ACCEPT) encountered */    int  external_options;            /* External (initial) options */
2036    int  nltype;                  /* Newline type */    int  external_flags;              /* External flag bits to be set */
2037    int  nllen;                   /* Newline string length */    int  req_varyopt;                 /* "After variable item" flag for reqbyte */
2038    uschar nl[4];                 /* Newline string when fixed length */    BOOL had_accept;                  /* (*ACCEPT) encountered */
2039      BOOL check_lookbehind;            /* Lookbehinds need later checking */
2040      int  nltype;                      /* Newline type */
2041      int  nllen;                       /* Newline string length */
2042      pcre_uchar nl[4];                 /* Newline string when fixed length */
2043  } compile_data;  } compile_data;
2044    
2045  /* Structure for maintaining a chain of pointers to the currently incomplete  /* Structure for maintaining a chain of pointers to the currently incomplete
2046  branches, for testing for left recursion. */  branches, for testing for left recursion while compiling. */
2047    
2048  typedef struct branch_chain {  typedef struct branch_chain {
2049    struct branch_chain *outer;    struct branch_chain *outer;
2050    uschar *current;    pcre_uchar *current_branch;
2051  } branch_chain;  } branch_chain;
2052    
2053  /* Structure for items in a linked list that represents an explicit recursive  /* Structure for items in a linked list that represents an explicit recursive
2054  call within the pattern. */  call within the pattern; used by pcre_exec(). */
2055    
2056  typedef struct recursion_info {  typedef struct recursion_info {
2057    struct recursion_info *prevrec; /* Previous recursion record (or NULL) */    struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
2058    int group_num;                /* Number of group that was called */    int group_num;                  /* Number of group that was called */
2059    const uschar *after_call;     /* "Return value": points after the call in the expr */    int *offset_save;               /* Pointer to start of saved offsets */
2060    USPTR save_start;             /* Old value of mstart */    int saved_max;                  /* Number of saved offsets */
2061    int *offset_save;             /* Pointer to start of saved offsets */    PCRE_PUCHAR subject_position;   /* Position at start of recursion */
   int saved_max;                /* Number of saved offsets */  
2062  } recursion_info;  } recursion_info;
2063    
2064    /* A similar structure for pcre_dfa_exec(). */
2065    
2066    typedef struct dfa_recursion_info {
2067      struct dfa_recursion_info *prevrec;
2068      int group_num;
2069      PCRE_PUCHAR subject_position;
2070    } dfa_recursion_info;
2071    
2072  /* 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
2073  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
2074  has been matched by a subpattern - to break infinite loops. */  has been matched by a subpattern - to break infinite loops; used by
2075    pcre_exec(). */
2076    
2077  typedef struct eptrblock {  typedef struct eptrblock {
2078    struct eptrblock *epb_prev;    struct eptrblock *epb_prev;
2079    USPTR epb_saved_eptr;    PCRE_PUCHAR epb_saved_eptr;
2080  } eptrblock;  } eptrblock;
2081    
2082    
# Line 1587  typedef struct match_data { Line 2087  typedef struct match_data {
2087    unsigned long int match_call_count;      /* As it says */    unsigned long int match_call_count;      /* As it says */
2088    unsigned long int match_limit;           /* As it says */    unsigned long int match_limit;           /* As it says */
2089    unsigned long int match_limit_recursion; /* As it says */    unsigned long int match_limit_recursion; /* As it says */
2090    int   *offset_vector;         /* Offset vector */    int   *offset_vector;           /* Offset vector */
2091    int    offset_end;            /* One past the end */    int    offset_end;              /* One past the end */
2092    int    offset_max;            /* The maximum usable for return data */    int    offset_max;              /* The maximum usable for return data */
2093    int    nltype;                /* Newline type */    int    nltype;                  /* Newline type */
2094    int    nllen;                 /* Newline string length */    int    nllen;                   /* Newline string length */
2095    uschar nl[4];                 /* Newline string when fixed */    int    name_count;              /* Number of names in name table */
2096    const uschar *lcc;            /* Points to lower casing table */    int    name_entry_size;         /* Size of entry in names table */
2097    const uschar *ctypes;         /* Points to table of type maps */    pcre_uchar *name_table;         /* Table of names */
2098    BOOL   offset_overflow;       /* Set if too many extractions */    pcre_uchar nl[4];               /* Newline string when fixed */
2099    BOOL   notbol;                /* NOTBOL flag */    const  pcre_uint8 *lcc;         /* Points to lower casing table */
2100    BOOL   noteol;                /* NOTEOL flag */    const  pcre_uint8 *fcc;         /* Points to case-flipping table */
2101    BOOL   utf8;                  /* UTF8 flag */    const  pcre_uint8 *ctypes;      /* Points to table of type maps */
2102    BOOL   jscript_compat;        /* JAVASCRIPT_COMPAT flag */    BOOL   offset_overflow;         /* Set if too many extractions */
2103    BOOL   endonly;               /* Dollar not before final \n */    BOOL   notbol;                  /* NOTBOL flag */
2104    BOOL   notempty;              /* Empty string match not wanted */    BOOL   noteol;                  /* NOTEOL flag */
2105    BOOL   notempty_atstart;      /* Empty string match at start not wanted */    BOOL   utf;                     /* UTF-8 / UTF-16 flag */
2106    BOOL   hitend;                /* Hit the end of the subject at some point */    BOOL   jscript_compat;          /* JAVASCRIPT_COMPAT flag */
2107    BOOL   bsr_anycrlf;           /* \R is just any CRLF, not full Unicode */    BOOL   use_ucp;                 /* PCRE_UCP flag */
2108    const uschar *start_code;     /* For use when recursing */    BOOL   endonly;                 /* Dollar not before final \n */
2109    USPTR  start_subject;         /* Start of the subject string */    BOOL   notempty;                /* Empty string match not wanted */
2110    USPTR  end_subject;           /* End of the subject string */    BOOL   notempty_atstart;        /* Empty string match at start not wanted */
2111    USPTR  start_match_ptr;       /* Start of matched string */    BOOL   hitend;                  /* Hit the end of the subject at some point */
2112    USPTR  end_match_ptr;         /* Subject position at end match */    BOOL   bsr_anycrlf;             /* \R is just any CRLF, not full Unicode */
2113    USPTR  start_used_ptr;        /* Earliest consulted character */    BOOL   hasthen;                 /* Pattern contains (*THEN) */
2114    int    partial;               /* PARTIAL options */    BOOL   ignore_skip_arg;         /* For re-run when SKIP name not found */
2115    int    end_offset_top;        /* Highwater mark at end of match */    const  pcre_uchar *start_code;  /* For use when recursing */
2116    int    capture_last;          /* Most recent capture number */    PCRE_PUCHAR start_subject;      /* Start of the subject string */
2117    int    start_offset;          /* The start offset value */    PCRE_PUCHAR end_subject;        /* End of the subject string */
2118    eptrblock *eptrchain;         /* Chain of eptrblocks for tail recursions */    PCRE_PUCHAR start_match_ptr;    /* Start of matched string */
2119    int    eptrn;                 /* Next free eptrblock */    PCRE_PUCHAR end_match_ptr;      /* Subject position at end match */
2120    recursion_info *recursive;    /* Linked list of recursion data */    PCRE_PUCHAR start_used_ptr;     /* Earliest consulted character */
2121    void  *callout_data;          /* To pass back to callouts */    int    partial;                 /* PARTIAL options */
2122      int    end_offset_top;          /* Highwater mark at end of match */
2123      int    capture_last;            /* Most recent capture number */
2124      int    start_offset;            /* The start offset value */
2125      int    match_function_type;     /* Set for certain special calls of MATCH() */
2126      eptrblock *eptrchain;           /* Chain of eptrblocks for tail recursions */
2127      int    eptrn;                   /* Next free eptrblock */
2128      recursion_info *recursive;      /* Linked list of recursion data */
2129      void  *callout_data;            /* To pass back to callouts */
2130      const  pcre_uchar *mark;        /* Mark pointer to pass back on success */
2131      const  pcre_uchar *nomatch_mark;/* Mark pointer to pass back on failure */
2132      const  pcre_uchar *once_target; /* Where to back up to for atomic groups */
2133  } match_data;  } match_data;
2134    
2135  /* 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
2136  functions. */  functions. */
2137    
2138  typedef struct dfa_match_data {  typedef struct dfa_match_data {
2139    const uschar *start_code;     /* Start of the compiled pattern */    const pcre_uchar *start_code;     /* Start of the compiled pattern */
2140    const uschar *start_subject;  /* Start of the subject string */    const pcre_uchar *start_subject ; /* Start of the subject string */
2141    const uschar *end_subject;    /* End of subject string */    const pcre_uchar *end_subject;    /* End of subject string */
2142    const uschar *start_used_ptr; /* Earliest consulted character */    const pcre_uchar *start_used_ptr; /* Earliest consulted character */
2143    const uschar *tables;         /* Character tables */    const pcre_uint8 *tables;         /* Character tables */
2144    int   start_offset;           /* The start offset value */    int   start_offset;               /* The start offset value */
2145    int   moptions;               /* Match options */    int   moptions;                   /* Match options */
2146    int   poptions;               /* Pattern options */    int   poptions;                   /* Pattern options */
2147    int    nltype;                /* Newline type */    int   nltype;                     /* Newline type */
2148    int    nllen;                 /* Newline string length */    int   nllen;                      /* Newline string length */
2149    uschar nl[4];                 /* Newline string when fixed */    pcre_uchar nl[4];                 /* Newline string when fixed */
2150    void  *callout_data;          /* To pass back to callouts */    void *callout_data;               /* To pass back to callouts */
2151      dfa_recursion_info *recursive;    /* Linked list of recursion data */
2152  } dfa_match_data;  } dfa_match_data;
2153    
2154  /* Bit definitions for entries in the pcre_ctypes table. */  /* Bit definitions for entries in the pcre_ctypes table. */
# Line 1672  total length. */ Line 2184  total length. */
2184  #define ctypes_offset (cbits_offset + cbit_length)  #define ctypes_offset (cbits_offset + cbit_length)
2185  #define tables_length (ctypes_offset + 256)  #define tables_length (ctypes_offset + 256)
2186    
2187    /* Internal function and data prefixes. */
2188    
2189    #ifdef COMPILE_PCRE8
2190    #ifndef PUBL
2191    #define PUBL(name) pcre_##name
2192    #endif
2193    #ifndef PRIV
2194    #define PRIV(name) _pcre_##name
2195    #endif
2196    #else /* COMPILE_PCRE8 */
2197    #ifdef COMPILE_PCRE16
2198    #ifndef PUBL
2199    #define PUBL(name) pcre16_##name
2200    #endif
2201    #ifndef PRIV
2202    #define PRIV(name) _pcre16_##name
2203    #endif
2204    #else
2205    #error Unsupported compiling mode
2206    #endif /* COMPILE_PCRE16 */
2207    #endif /* COMPILE_PCRE8 */
2208    
2209  /* 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
2210  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
2211  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 1689  of the exported public functions. They h Line 2223  of the exported public functions. They h
2223  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
2224  pcre_tables.c module. */  pcre_tables.c module. */
2225    
2226  extern const int    _pcre_utf8_table1[];  #ifdef COMPILE_PCRE8
2227  extern const int    _pcre_utf8_table2[];  
2228  extern const int    _pcre_utf8_table3[];  extern const int            PRIV(utf8_table1)[];
2229  extern const uschar _pcre_utf8_table4[];  extern const int            PRIV(utf8_table1_size);
2230    extern const int            PRIV(utf8_table2)[];
2231    extern const int            PRIV(utf8_table3)[];
2232    extern const pcre_uint8     PRIV(utf8_table4)[];
2233    
2234  extern const int    _pcre_utf8_table1_size;  #endif /* COMPILE_PCRE8 */
2235    
2236  extern const char   _pcre_utt_names[];  extern const char           PRIV(utt_names)[];
2237  extern const ucp_type_table _pcre_utt[];  extern const ucp_type_table PRIV(utt)[];
2238  extern const int _pcre_utt_size;  extern const int            PRIV(utt_size);
2239    
2240  extern const uschar _pcre_default_tables[];  extern const pcre_uint8     PRIV(default_tables)[];
2241    
2242  extern const uschar _pcre_OP_lengths[];  extern const pcre_uint8     PRIV(OP_lengths)[];
2243    
2244    
2245  /* Internal shared functions. These are functions that are used by more than  /* Internal shared functions. These are functions that are used by more than
2246  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
2247  sense, but are not part of the PCRE public API. */  sense, but are not part of the PCRE public API. */
2248    
2249  extern BOOL         _pcre_is_newline(const uschar *, int, const uschar *,  /* String comparison functions. */
2250                        int *, BOOL);  #ifdef COMPILE_PCRE8
2251  extern int          _pcre_ord2utf8(int, uschar *);  
2252  extern real_pcre   *_pcre_try_flipped(const real_pcre *, real_pcre *,  #define STRCMP_UC_UC(str1, str2) \
2253                        const pcre_study_data *, pcre_study_data *);    strcmp((char *)(str1), (char *)(str2))
2254  extern int          _pcre_valid_utf8(const uschar *, int);  #define STRCMP_UC_C8(str1, str2) \
2255  extern BOOL         _pcre_was_newline(const uschar *, int, const uschar *,    strcmp((char *)(str1), (str2))
2256                        int *, BOOL);  #define STRNCMP_UC_UC(str1, str2, num) \
2257  extern BOOL         _pcre_xclass(int, const uschar *);    strncmp((char *)(str1), (char *)(str2), (num))
2258    #define STRNCMP_UC_C8(str1, str2, num) \
2259      strncmp((char *)(str1), (str2), (num))
2260    #define STRLEN_UC(str) strlen((const char *)str)
2261    
2262    #else
2263    
2264    extern int               PRIV(strcmp_uc_uc)(const pcre_uchar *,
2265                               const pcre_uchar *);
2266    extern int               PRIV(strcmp_uc_c8)(const pcre_uchar *,
2267                               const char *);
2268    extern int               PRIV(strncmp_uc_uc)(const pcre_uchar *,
2269                               const pcre_uchar *, unsigned int num);
2270    extern int               PRIV(strncmp_uc_c8)(const pcre_uchar *,
2271                               const char *, unsigned int num);
2272    extern unsigned int      PRIV(strlen_uc)(const pcre_uchar *str);
2273    
2274    #define STRCMP_UC_UC(str1, str2) \
2275      PRIV(strcmp_uc_uc)((str1), (str2))
2276    #define STRCMP_UC_C8(str1, str2) \
2277      PRIV(strcmp_uc_c8)((str1), (str2))
2278    #define STRNCMP_UC_UC(str1, str2, num) \
2279      PRIV(strncmp_uc_uc)((str1), (str2), (num))
2280    #define STRNCMP_UC_C8(str1, str2, num) \
2281      PRIV(strncmp_uc_c8)((str1), (str2), (num))
2282    #define STRLEN_UC(str) PRIV(strlen_uc)(str)
2283    
2284    #endif /* COMPILE_PCRE8 */
2285    
2286    extern const pcre_uchar *PRIV(find_bracket)(const pcre_uchar *, BOOL, int);
2287    extern BOOL              PRIV(is_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2288                               int *, BOOL);
2289    extern int               PRIV(ord2utf)(pcre_uint32, pcre_uchar *);
2290    extern int               PRIV(valid_utf)(PCRE_PUCHAR, int, int *);
2291    extern BOOL              PRIV(was_newline)(PCRE_PUCHAR, int, PCRE_PUCHAR,
2292                               int *, BOOL);
2293    extern BOOL              PRIV(xclass)(int, const pcre_uchar *, BOOL);
2294    
2295    #ifdef SUPPORT_JIT
2296    extern void              PRIV(jit_compile)(const REAL_PCRE *, PUBL(extra) *, int);
2297    extern int               PRIV(jit_exec)(const REAL_PCRE *, void *,
2298                               const pcre_uchar *, int, int, int, int, int *, int,
2299                               pcre_uchar **);
2300    extern void              PRIV(jit_free)(void *);
2301    extern int               PRIV(jit_get_size)(void *);
2302    extern const char*       PRIV(jit_get_target)(void);
2303    #endif
2304    
2305  /* Unicode character database (UCD) */  /* Unicode character database (UCD) */
2306    
2307  typedef struct {  typedef struct {
2308    uschar script;    pcre_uint8 script;
2309    uschar chartype;    pcre_uint8 chartype;
2310    pcre_int32 other_case;    pcre_int32 other_case;
2311  } ucd_record;  } ucd_record;
2312    
2313  extern const ucd_record  _pcre_ucd_records[];  extern const ucd_record  PRIV(ucd_records)[];
2314  extern const uschar      _pcre_ucd_stage1[];  extern const pcre_uint8  PRIV(ucd_stage1)[];
2315  extern const pcre_uint16 _pcre_ucd_stage2[];  extern const pcre_uint16 PRIV(ucd_stage2)[];
2316  extern const int         _pcre_ucp_gentype[];  extern const int         PRIV(ucp_gentype)[];
2317    #ifdef SUPPORT_JIT
2318    extern const int         PRIV(ucp_typerange)[];
2319    #endif
2320    
2321    #ifdef SUPPORT_UCP
2322  /* UCD access macros */  /* UCD access macros */
2323    
2324  #define UCD_BLOCK_SIZE 128  #define UCD_BLOCK_SIZE 128
2325  #define GET_UCD(ch) (_pcre_ucd_records + \  #define GET_UCD(ch) (PRIV(ucd_records) + \
2326          _pcre_ucd_stage2[_pcre_ucd_stage1[(ch) / UCD_BLOCK_SIZE] * \          PRIV(ucd_stage2)[PRIV(ucd_stage1)[(ch) / UCD_BLOCK_SIZE] * \
2327          UCD_BLOCK_SIZE + ch % UCD_BLOCK_SIZE])          UCD_BLOCK_SIZE + (ch) % UCD_BLOCK_SIZE])
2328    
2329  #define UCD_CHARTYPE(ch)  GET_UCD(ch)->chartype  #define UCD_CHARTYPE(ch)  GET_UCD(ch)->chartype
2330  #define UCD_SCRIPT(ch)    GET_UCD(ch)->script  #define UCD_SCRIPT(ch)    GET_UCD(ch)->script
2331  #define UCD_CATEGORY(ch)  _pcre_ucp_gentype[UCD_CHARTYPE(ch)]  #define UCD_CATEGORY(ch)  PRIV(ucp_gentype)[UCD_CHARTYPE(ch)]
2332  #define UCD_OTHERCASE(ch) (ch + GET_UCD(ch)->other_case)  #define UCD_OTHERCASE(ch) (ch + GET_UCD(ch)->other_case)
2333    
2334    #endif /* SUPPORT_UCP */
2335    
2336  #endif  #endif
2337    
2338  /* End of pcre_internal.h */  /* End of pcre_internal.h */

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