/[pcre]/code/trunk/pcre_internal.h
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revision 87 by nigel, Sat Feb 24 21:41:21 2007 UTC revision 149 by ph10, Mon Apr 16 15:28:08 2007 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) 1997-2006 University of Cambridge             Copyright (c) 1997-2007 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 54  functions whose names all begin with "_p Line 54  functions whose names all begin with "_p
54  /* 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
55  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
56  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
57  all, it had only been about 10 years then... */  all, it had only been about 10 years then...
58    
59    It turns out that the Mac Debugging.h header also defines the macro DPRINTF, so
60    be absolutely sure we get our version. */
61    
62    #undef DPRINTF
63  #ifdef DEBUG  #ifdef DEBUG
64  #define DPRINTF(p) printf p  #define DPRINTF(p) printf p
65  #else  #else
66  #define DPRINTF(p) /*nothing*/  #define DPRINTF(p) /* Nothing */
67  #endif  #endif
68    
69    
# Line 79  setjmp and stdarg are used is when NO_RE Line 83  setjmp and stdarg are used is when NO_RE
83  #include <stdlib.h>  #include <stdlib.h>
84  #include <string.h>  #include <string.h>
85    
86  #ifndef PCRE_SPY  /* When compiling a DLL for Windows, the exported symbols have to be declared
87  #define PCRE_DEFINITION       /* Win32 __declspec(export) trigger for .dll */  using some MS magic. I found some useful information on this web page:
88    http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
89    information there, using __declspec(dllesport) without "extern" we have a
90    definition; with "extern" we have a declaration. The settings here override the
91    setting in pcre.h (which is included below); it defines only PCRE_EXP_DECL,
92    which is all that is needed for applications, which import the symbols. We use:
93    
94      PCRE_EXP_DECL       for declarations
95      PCRE_EXP_DEFN       for definitions of exported functions
96      PCRE_EXP_DATA_DEFN  for definitions of exported variables
97    
98    The reason for the two DEFN macros is that in non-Windows environments, one
99    does not want to have "extern" before variable definitions because it leads to
100    compiler warnings. So we distinguish between functions and variables. In
101    Windows, the two should always be the same.
102    
103    The reason for wrapping this in #ifndef PCRE_EXP_DECL is so that pcretest,
104    which is an application, but needs to import this file in order to "peek" at
105    internals, can #include pcre.h first, can get an application's-eye view.
106    
107    In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
108    special-purpose environments) might want to stick other stuff in front of
109    exported symbols. That's why, in the non-Windows case, we set PCRE_EXP_DEFN and
110    PCRE_EXP_DATA_DEFN only if they are not already set. */
111    
112    #ifndef PCRE_EXP_DECL
113    #  ifdef _WIN32
114    #    ifdef DLL_EXPORT
115    #      define PCRE_EXP_DECL       extern __declspec(dllexport)
116    #      define PCRE_EXP_DEFN       __declspec(dllexport)
117    #      define PCRE_EXP_DATA_DEFN  __declspec(dllexport)
118    #    else
119    #      define PCRE_EXP_DECL       extern
120    #      define PCRE_EXP_DEFN
121    #      define PCRE_EXP_DATA_DEFN
122    #    endif
123    #
124    #  else
125    #    ifdef __cplusplus
126    #      define PCRE_EXP_DECL       extern "C"
127    #    else
128    #      define PCRE_EXP_DECL       extern
129    #    endif
130    #    ifndef PCRE_EXP_DEFN
131    #      define PCRE_EXP_DEFN       PCRE_EXP_DECL
132    #    endif
133    #    ifndef PCRE_EXP_DATA_DEFN
134    #      define PCRE_EXP_DATA_DEFN
135    #    endif
136    #  endif
137  #endif  #endif
138    
139  /* We need to have types that specify unsigned 16-bit and 32-bit integers. We  /* We need to have types that specify unsigned 16-bit and 32-bit integers. We
# Line 114  Unix, where it is defined in sys/types, Line 167  Unix, where it is defined in sys/types,
167    
168  typedef unsigned char uschar;  typedef unsigned char uschar;
169    
170    /* This is an unsigned int value that no character can ever have. UTF-8
171    characters only go up to 0x7fffffff (though Unicode doesn't go beyond
172    0x0010ffff). */
173    
174    #define NOTACHAR 0xffffffff
175    
176    /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
177    "any" and "anycrlf" at present). The following macros are used to package up
178    testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
179    modules to indicate in which datablock the parameters exist, and what the
180    start/end of string field names are. */
181    
182    #define NLTYPE_FIXED    0     /* Newline is a fixed length string */
183    #define NLTYPE_ANY      1     /* Newline is any Unicode line ending */
184    #define NLTYPE_ANYCRLF  2     /* Newline is CR, LF, or CRLF */
185    
186    /* This macro checks for a newline at the given position */
187    
188    #define IS_NEWLINE(p) \
189      ((NLBLOCK->nltype != NLTYPE_FIXED)? \
190        ((p) < NLBLOCK->PSEND && \
191         _pcre_is_newline((p), NLBLOCK->nltype, NLBLOCK->PSEND, &(NLBLOCK->nllen),\
192           utf8)) \
193        : \
194        ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
195         (p)[0] == NLBLOCK->nl[0] && \
196         (NLBLOCK->nllen == 1 || (p)[1] == NLBLOCK->nl[1]) \
197        ) \
198      )
199    
200    /* This macro checks for a newline immediately preceding the given position */
201    
202    #define WAS_NEWLINE(p) \
203      ((NLBLOCK->nltype != NLTYPE_FIXED)? \
204        ((p) > NLBLOCK->PSSTART && \
205         _pcre_was_newline((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
206           &(NLBLOCK->nllen), utf8)) \
207        : \
208        ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
209         (p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \
210         (NLBLOCK->nllen == 1 || (p)[-NLBLOCK->nllen+1] == NLBLOCK->nl[1]) \
211        ) \
212      )
213    
214  /* When PCRE is compiled as a C++ library, the subject pointer can be replaced  /* When PCRE is compiled as a C++ library, the subject pointer can be replaced
215  with a custom type. This makes it possible, for example, to allow pcre_exec()  with a custom type. This makes it possible, for example, to allow pcre_exec()
216  to process subject strings that are discontinuous by using a smart pointer  to process subject strings that are discontinuous by using a smart pointer
# Line 131  must begin with PCRE_. */ Line 228  must begin with PCRE_. */
228  #define USPTR const unsigned char *  #define USPTR const unsigned char *
229  #endif  #endif
230    
231    
232    
233  /* Include the public PCRE header and the definitions of UCP character property  /* Include the public PCRE header and the definitions of UCP character property
234  values. */  values. */
235    
236  #include "pcre.h"  #include <pcre.h>
237  #include "ucp.h"  #include "ucp.h"
238    
239  /* When compiling for use with the Virtual Pascal compiler, these functions  /* When compiling for use with the Virtual Pascal compiler, these functions
# Line 142  need to have their names changed. PCRE m Line 241  need to have their names changed. PCRE m
241  option on the command line. */  option on the command line. */
242    
243  #ifdef VPCOMPAT  #ifdef VPCOMPAT
244    #define strlen(s)        _strlen(s)
245  #define strncmp(s1,s2,m) _strncmp(s1,s2,m)  #define strncmp(s1,s2,m) _strncmp(s1,s2,m)
246    #define memcmp(s,c,n)    _memcmp(s,c,n)
247  #define memcpy(d,s,n)    _memcpy(d,s,n)  #define memcpy(d,s,n)    _memcpy(d,s,n)
248  #define memmove(d,s,n)   _memmove(d,s,n)  #define memmove(d,s,n)   _memmove(d,s,n)
249  #define memset(s,c,n)    _memset(s,c,n)  #define memset(s,c,n)    _memset(s,c,n)
# Line 151  option on the command line. */ Line 252  option on the command line. */
252  /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),  /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
253  define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY  define a macro for memmove() if HAVE_MEMMOVE is false, provided that HAVE_BCOPY
254  is set. Otherwise, include an emulating function for those systems that have  is set. Otherwise, include an emulating function for those systems that have
255  neither (there some non-Unix environments where this is the case). This assumes  neither (there some non-Unix environments where this is the case). */
 that all calls to memmove are moving strings upwards in store, which is the  
 case in PCRE. */  
256    
257  #if ! HAVE_MEMMOVE  #ifndef HAVE_MEMMOVE
258  #undef  memmove        /* some systems may have a macro */  #undef  memmove        /* some systems may have a macro */
259  #if HAVE_BCOPY  #ifdef HAVE_BCOPY
260  #define memmove(a, b, c) bcopy(b, a, c)  #define memmove(a, b, c) bcopy(b, a, c)
261  #else  /* HAVE_BCOPY */  #else  /* HAVE_BCOPY */
262  void *  static void *
263  pcre_memmove(unsigned char *dest, const unsigned char *src, size_t n)  pcre_memmove(void *d, const void *s, size_t n)
264  {  {
265  size_t i;  size_t i;
266  dest += n;  unsigned char *dest = (unsigned char *)d;
267  src += n;  const unsigned char *src = (const unsigned char *)s;
268  for (i = 0; i < n; ++i) *(--dest) =  *(--src);  if (dest > src)
269  return dest;    {
270      dest += n;
271      src += n;
272      for (i = 0; i < n; ++i) *(--dest) = *(--src);
273      return (void *)dest;
274      }
275    else
276      {
277      for (i = 0; i < n; ++i) *dest++ = *src++;
278      return (void *)(dest - n);
279      }
280  }  }
281  #define memmove(a, b, c) pcre_memmove(a, b, c)  #define memmove(a, b, c) pcre_memmove(a, b, c)
282  #endif   /* not HAVE_BCOPY */  #endif   /* not HAVE_BCOPY */
# Line 270  we know we are in UTF-8 mode. */ Line 379  we know we are in UTF-8 mode. */
379    
380  #define GETCHAR(c, eptr) \  #define GETCHAR(c, eptr) \
381    c = *eptr; \    c = *eptr; \
382    if ((c & 0xc0) == 0xc0) \    if (c >= 0xc0) \
383      { \      { \
384      int gcii; \      int gcii; \
385      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \
# Line 288  pointer. */ Line 397  pointer. */
397    
398  #define GETCHARTEST(c, eptr) \  #define GETCHARTEST(c, eptr) \
399    c = *eptr; \    c = *eptr; \
400    if (utf8 && (c & 0xc0) == 0xc0) \    if (utf8 && c >= 0xc0) \
401      { \      { \
402      int gcii; \      int gcii; \
403      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \
# Line 306  know we are in UTF-8 mode. */ Line 415  know we are in UTF-8 mode. */
415    
416  #define GETCHARINC(c, eptr) \  #define GETCHARINC(c, eptr) \
417    c = *eptr++; \    c = *eptr++; \
418    if ((c & 0xc0) == 0xc0) \    if (c >= 0xc0) \
419      { \      { \
420      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \
421      int gcss = 6*gcaa; \      int gcss = 6*gcaa; \
# Line 322  know we are in UTF-8 mode. */ Line 431  know we are in UTF-8 mode. */
431    
432  #define GETCHARINCTEST(c, eptr) \  #define GETCHARINCTEST(c, eptr) \
433    c = *eptr++; \    c = *eptr++; \
434    if (utf8 && (c & 0xc0) == 0xc0) \    if (utf8 && c >= 0xc0) \
435      { \      { \
436      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \
437      int gcss = 6*gcaa; \      int gcss = 6*gcaa; \
# Line 339  if there are extra bytes. This is called Line 448  if there are extra bytes. This is called
448    
449  #define GETCHARLEN(c, eptr, len) \  #define GETCHARLEN(c, eptr, len) \
450    c = *eptr; \    c = *eptr; \
451    if ((c & 0xc0) == 0xc0) \    if (c >= 0xc0) \
452      { \      { \
453      int gcii; \      int gcii; \
454      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \      int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \
# Line 373  Standard C system should have one. */ Line 482  Standard C system should have one. */
482    
483  #define PCRE_IMS (PCRE_CASELESS|PCRE_MULTILINE|PCRE_DOTALL)  #define PCRE_IMS (PCRE_CASELESS|PCRE_MULTILINE|PCRE_DOTALL)
484    
485  /* Private options flags start at the most significant end of the four bytes,  /* Private options flags start at the most significant end of the four bytes.
486  but skip the top bit so we can use ints for convenience without getting tangled  The public options defined in pcre.h start at the least significant end. Make
487  with negative values. The public options defined in pcre.h start at the least  sure they don't overlap! The bits are getting a bit scarce now -- when we run
488  significant end. Make sure they don't overlap! */  out, there is a dummy word in the structure that could be used for the private
489    bits. */
490    
491    #define PCRE_NOPARTIAL     0x80000000  /* can't use partial with this regex */
492  #define PCRE_FIRSTSET      0x40000000  /* first_byte is set */  #define PCRE_FIRSTSET      0x40000000  /* first_byte is set */
493  #define PCRE_REQCHSET      0x20000000  /* req_byte is set */  #define PCRE_REQCHSET      0x20000000  /* req_byte is set */
494  #define PCRE_STARTLINE     0x10000000  /* start after \n for multiline */  #define PCRE_STARTLINE     0x10000000  /* start after \n for multiline */
495  #define PCRE_ICHANGED      0x08000000  /* i option changes within regex */  #define PCRE_JCHANGED      0x08000000  /* j option changes within regex */
 #define PCRE_NOPARTIAL     0x04000000  /* can't use partial with this regex */  
496    
497  /* Options for the "extra" block produced by pcre_study(). */  /* Options for the "extra" block produced by pcre_study(). */
498    
# Line 391  significant end. Make sure they don't ov Line 501  significant end. Make sure they don't ov
501  /* Masks for identifying the public options that are permitted at compile  /* Masks for identifying the public options that are permitted at compile
502  time, run time, or study time, respectively. */  time, run time, or study time, respectively. */
503    
504    #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
505                               PCRE_NEWLINE_ANYCRLF)
506    
507  #define PUBLIC_OPTIONS \  #define PUBLIC_OPTIONS \
508    (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \    (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
509     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
510     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| \
511       PCRE_DUPNAMES|PCRE_NEWLINE_BITS)
512    
513  #define PUBLIC_EXEC_OPTIONS \  #define PUBLIC_EXEC_OPTIONS \
514    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NO_UTF8_CHECK| \    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NO_UTF8_CHECK| \
515     PCRE_PARTIAL)     PCRE_PARTIAL|PCRE_NEWLINE_BITS)
516    
517  #define PUBLIC_DFA_EXEC_OPTIONS \  #define PUBLIC_DFA_EXEC_OPTIONS \
518    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NO_UTF8_CHECK| \    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NO_UTF8_CHECK| \
519     PCRE_PARTIAL|PCRE_DFA_SHORTEST|PCRE_DFA_RESTART)     PCRE_PARTIAL|PCRE_DFA_SHORTEST|PCRE_DFA_RESTART|PCRE_NEWLINE_BITS)
520    
521  #define PUBLIC_STUDY_OPTIONS 0   /* None defined */  #define PUBLIC_STUDY_OPTIONS 0   /* None defined */
522    
# Line 434  typedef int BOOL; Line 548  typedef int BOOL;
548  #define FALSE   0  #define FALSE   0
549  #define TRUE    1  #define TRUE    1
550    
551  /* Escape items that are just an encoding of a particular data value. Note that  /* Escape items that are just an encoding of a particular data value. */
 ESC_n is defined as yet another macro, which is set in config.h to either \n  
 (the default) or \r (which some people want). */  
552    
553  #ifndef ESC_e  #ifndef ESC_e
554  #define ESC_e 27  #define ESC_e 27
# Line 447  ESC_n is defined as yet another macro, w Line 559  ESC_n is defined as yet another macro, w
559  #endif  #endif
560    
561  #ifndef ESC_n  #ifndef ESC_n
562  #define ESC_n NEWLINE  #define ESC_n '\n'
563  #endif  #endif
564    
565  #ifndef ESC_r  #ifndef ESC_r
# Line 486  value such as \n. They must have non-zer Line 598  value such as \n. They must have non-zer
598  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
599  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_ANY because it
600  corresponds to "." rather than an escape sequence. The final one must be  corresponds to "." rather than an escape sequence. The final one must be
601  ESC_REF as subsequent values are used for \1, \2, \3, etc. There is are two  ESC_REF as subsequent values are used for backreferences (\1, \2, \3, etc).
602  tests in the code for an escape greater than ESC_b and less than ESC_Z to  There are two tests in the code for an escape greater than ESC_b and less than
603  detect the types that may be repeated. These are the types that consume  ESC_Z to detect the types that may be repeated. These are the types that
604  characters. If any new escapes are put in between that don't consume a  consume characters. If any new escapes are put in between that don't consume a
605  character, that code will have to change. */  character, that code will have to change. */
606    
607  enum { ESC_A = 1, ESC_G, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s, ESC_W,  enum { ESC_A = 1, ESC_G, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s, ESC_W,
608         ESC_w, ESC_dum1, ESC_C, ESC_P, ESC_p, ESC_X, ESC_Z, ESC_z, ESC_E,         ESC_w, ESC_dum1, ESC_C, ESC_P, ESC_p, ESC_R, ESC_X, ESC_Z, ESC_z,
609         ESC_Q, ESC_REF };         ESC_E, ESC_Q, ESC_k, ESC_REF };
610    
611    
612  /* Opcode table: OP_BRA must be last, as all values >= it are used for brackets  /* Opcode table: OP_BRA must be last, as all values >= it are used for brackets
613  that extract substrings. Starting from 1 (i.e. after OP_END), the values up to  that extract substrings. Starting from 1 (i.e. after OP_END), the values up to
614  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.
615  Note that whenever this list is updated, the two macro definitions that follow  
616  must also be updated to match. */  To keep stored, compiled patterns compatible, new opcodes should be added
617    immediately before OP_BRA, where (since release 7.0) a gap is left for this
618    purpose.
619    
620    *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
621    that follow must also be updated to match. There is also a table called
622    "coptable" in pcre_dfa_exec.c that must be updated. */
623    
624  enum {  enum {
625    OP_END,            /* 0 End of pattern */    OP_END,            /* 0 End of pattern */
# Line 521  enum { Line 640  enum {
640    OP_ANYBYTE,        /* 12 Match any byte (\C); different to OP_ANY for UTF-8 */    OP_ANYBYTE,        /* 12 Match any byte (\C); different to OP_ANY for UTF-8 */
641    OP_NOTPROP,        /* 13 \P (not Unicode property) */    OP_NOTPROP,        /* 13 \P (not Unicode property) */
642    OP_PROP,           /* 14 \p (Unicode property) */    OP_PROP,           /* 14 \p (Unicode property) */
643    OP_EXTUNI,         /* 15 \X (extended Unicode sequence */    OP_ANYNL,          /* 15 \R (any newline sequence) */
644    OP_EODN,           /* 16 End of data or \n at end of data: \Z. */    OP_EXTUNI,         /* 16 \X (extended Unicode sequence */
645    OP_EOD,            /* 17 End of data: \z */    OP_EODN,           /* 17 End of data or \n at end of data: \Z. */
646      OP_EOD,            /* 18 End of data: \z */
647    OP_OPT,            /* 18 Set runtime options */  
648    OP_CIRC,           /* 19 Start of line - varies with multiline switch */    OP_OPT,            /* 19 Set runtime options */
649    OP_DOLL,           /* 20 End of line - varies with multiline switch */    OP_CIRC,           /* 20 Start of line - varies with multiline switch */
650    OP_CHAR,           /* 21 Match one character, casefully */    OP_DOLL,           /* 21 End of line - varies with multiline switch */
651    OP_CHARNC,         /* 22 Match one character, caselessly */    OP_CHAR,           /* 22 Match one character, casefully */
652    OP_NOT,            /* 23 Match anything but the following char */    OP_CHARNC,         /* 23 Match one character, caselessly */
653      OP_NOT,            /* 24 Match one character, not the following one */
654    OP_STAR,           /* 24 The maximizing and minimizing versions of */  
655    OP_MINSTAR,        /* 25 all these opcodes must come in pairs, with */    OP_STAR,           /* 25 The maximizing and minimizing versions of */
656    OP_PLUS,           /* 26 the minimizing one second. */    OP_MINSTAR,        /* 26 these six opcodes must come in pairs, with */
657    OP_MINPLUS,        /* 27 This first set applies to single characters */    OP_PLUS,           /* 27 the minimizing one second. */
658    OP_QUERY,          /* 28 */    OP_MINPLUS,        /* 28 This first set applies to single characters.*/
659    OP_MINQUERY,       /* 29 */    OP_QUERY,          /* 29 */
660    OP_UPTO,           /* 30 From 0 to n matches */    OP_MINQUERY,       /* 30 */
661    OP_MINUPTO,        /* 31 */  
662    OP_EXACT,          /* 32 Exactly n matches */    OP_UPTO,           /* 31 From 0 to n matches */
663      OP_MINUPTO,        /* 32 */
664    OP_NOTSTAR,        /* 33 The maximizing and minimizing versions of */    OP_EXACT,          /* 33 Exactly n matches */
665    OP_NOTMINSTAR,     /* 34 all these opcodes must come in pairs, with */  
666    OP_NOTPLUS,        /* 35 the minimizing one second. */    OP_POSSTAR,        /* 34 Possessified star */
667    OP_NOTMINPLUS,     /* 36 This set applies to "not" single characters */    OP_POSPLUS,        /* 35 Possessified plus */
668    OP_NOTQUERY,       /* 37 */    OP_POSQUERY,       /* 36 Posesssified query */
669    OP_NOTMINQUERY,    /* 38 */    OP_POSUPTO,        /* 37 Possessified upto */
670    OP_NOTUPTO,        /* 39 From 0 to n matches */  
671    OP_NOTMINUPTO,     /* 40 */    OP_NOTSTAR,        /* 38 The maximizing and minimizing versions of */
672    OP_NOTEXACT,       /* 41 Exactly n matches */    OP_NOTMINSTAR,     /* 39 these six opcodes must come in pairs, with */
673      OP_NOTPLUS,        /* 40 the minimizing one second. They must be in */
674    OP_TYPESTAR,       /* 42 The maximizing and minimizing versions of */    OP_NOTMINPLUS,     /* 41 exactly the same order as those above. */
675    OP_TYPEMINSTAR,    /* 43 all these opcodes must come in pairs, with */    OP_NOTQUERY,       /* 42 This set applies to "not" single characters. */
676    OP_TYPEPLUS,       /* 44 the minimizing one second. These codes must */    OP_NOTMINQUERY,    /* 43 */
677    OP_TYPEMINPLUS,    /* 45 be in exactly the same order as those above. */  
678    OP_TYPEQUERY,      /* 46 This set applies to character types such as \d */    OP_NOTUPTO,        /* 44 From 0 to n matches */
679    OP_TYPEMINQUERY,   /* 47 */    OP_NOTMINUPTO,     /* 45 */
680    OP_TYPEUPTO,       /* 48 From 0 to n matches */    OP_NOTEXACT,       /* 46 Exactly n matches */
681    OP_TYPEMINUPTO,    /* 49 */  
682    OP_TYPEEXACT,      /* 50 Exactly n matches */    OP_NOTPOSSTAR,     /* 47 Possessified versions */
683      OP_NOTPOSPLUS,     /* 48 */
684    OP_CRSTAR,         /* 51 The maximizing and minimizing versions of */    OP_NOTPOSQUERY,    /* 49 */
685    OP_CRMINSTAR,      /* 52 all these opcodes must come in pairs, with */    OP_NOTPOSUPTO,     /* 50 */
686    OP_CRPLUS,         /* 53 the minimizing one second. These codes must */  
687    OP_CRMINPLUS,      /* 54 be in exactly the same order as those above. */    OP_TYPESTAR,       /* 51 The maximizing and minimizing versions of */
688    OP_CRQUERY,        /* 55 These are for character classes and back refs */    OP_TYPEMINSTAR,    /* 52 these six opcodes must come in pairs, with */
689    OP_CRMINQUERY,     /* 56 */    OP_TYPEPLUS,       /* 53 the minimizing one second. These codes must */
690    OP_CRRANGE,        /* 57 These are different to the three sets above. */    OP_TYPEMINPLUS,    /* 54 be in exactly the same order as those above. */
691    OP_CRMINRANGE,     /* 58 */    OP_TYPEQUERY,      /* 55 This set applies to character types such as \d */
692      OP_TYPEMINQUERY,   /* 56 */
693    
694      OP_TYPEUPTO,       /* 57 From 0 to n matches */
695      OP_TYPEMINUPTO,    /* 58 */
696      OP_TYPEEXACT,      /* 59 Exactly n matches */
697    
698      OP_TYPEPOSSTAR,    /* 60 Possessified versions */
699      OP_TYPEPOSPLUS,    /* 61 */
700      OP_TYPEPOSQUERY,   /* 62 */
701      OP_TYPEPOSUPTO,    /* 63 */
702    
703      OP_CRSTAR,         /* 64 The maximizing and minimizing versions of */
704      OP_CRMINSTAR,      /* 65 all these opcodes must come in pairs, with */
705      OP_CRPLUS,         /* 66 the minimizing one second. These codes must */
706      OP_CRMINPLUS,      /* 67 be in exactly the same order as those above. */
707      OP_CRQUERY,        /* 68 These are for character classes and back refs */
708      OP_CRMINQUERY,     /* 69 */
709      OP_CRRANGE,        /* 70 These are different to the three sets above. */
710      OP_CRMINRANGE,     /* 71 */
711    
712    OP_CLASS,          /* 59 Match a character class, chars < 256 only */    OP_CLASS,          /* 72 Match a character class, chars < 256 only */
713    OP_NCLASS,         /* 60 Same, but the bitmap was created from a negative    OP_NCLASS,         /* 73 Same, but the bitmap was created from a negative
714                             class - the difference is relevant only when a UTF-8                             class - the difference is relevant only when a UTF-8
715                             character > 255 is encountered. */                             character > 255 is encountered. */
716    
717    OP_XCLASS,         /* 61 Extended class for handling UTF-8 chars within the    OP_XCLASS,         /* 74 Extended class for handling UTF-8 chars within the
718                             class. This does both positive and negative. */                             class. This does both positive and negative. */
719    
720    OP_REF,            /* 62 Match a back reference */    OP_REF,            /* 75 Match a back reference */
721    OP_RECURSE,        /* 63 Match a numbered subpattern (possibly recursive) */    OP_RECURSE,        /* 76 Match a numbered subpattern (possibly recursive) */
722    OP_CALLOUT,        /* 64 Call out to external function if provided */    OP_CALLOUT,        /* 77 Call out to external function if provided */
723    
724    OP_ALT,            /* 65 Start of alternation */    OP_ALT,            /* 78 Start of alternation */
725    OP_KET,            /* 66 End of group that doesn't have an unbounded repeat */    OP_KET,            /* 79 End of group that doesn't have an unbounded repeat */
726    OP_KETRMAX,        /* 67 These two must remain together and in this */    OP_KETRMAX,        /* 80 These two must remain together and in this */
727    OP_KETRMIN,        /* 68 order. They are for groups the repeat for ever. */    OP_KETRMIN,        /* 81 order. They are for groups the repeat for ever. */
728    
729    /* The assertions must come before ONCE and COND */    /* The assertions must come before BRA, CBRA, ONCE, and COND.*/
730    
731    OP_ASSERT,         /* 69 Positive lookahead */    OP_ASSERT,         /* 82 Positive lookahead */
732    OP_ASSERT_NOT,     /* 70 Negative lookahead */    OP_ASSERT_NOT,     /* 83 Negative lookahead */
733    OP_ASSERTBACK,     /* 71 Positive lookbehind */    OP_ASSERTBACK,     /* 84 Positive lookbehind */
734    OP_ASSERTBACK_NOT, /* 72 Negative lookbehind */    OP_ASSERTBACK_NOT, /* 85 Negative lookbehind */
735    OP_REVERSE,        /* 73 Move pointer back - used in lookbehind assertions */    OP_REVERSE,        /* 86 Move pointer back - used in lookbehind assertions */
736    
737    /* ONCE and COND must come after the assertions, with ONCE first, as there's    /* ONCE, BRA, CBRA, and COND must come after the assertions, with ONCE first,
738    a test for >= ONCE for a subpattern that isn't an assertion. */    as there's a test for >= ONCE for a subpattern that isn't an assertion. */
739    
740    OP_ONCE,           /* 74 Once matched, don't back up into the subpattern */    OP_ONCE,           /* 87 Atomic group */
741    OP_COND,           /* 75 Conditional group */    OP_BRA,            /* 88 Start of non-capturing bracket */
742    OP_CREF,           /* 76 Used to hold an extraction string number (cond ref) */    OP_CBRA,           /* 89 Start of capturing bracket */
743      OP_COND,           /* 90 Conditional group */
744    OP_BRAZERO,        /* 77 These two must remain together and in this */  
745    OP_BRAMINZERO,     /* 78 order. */    /* These three must follow the previous three, in the same order. There's a
746      check for >= SBRA to distinguish the two sets. */
747    OP_BRANUMBER,      /* 79 Used for extracting brackets whose number is greater  
748                             than can fit into an opcode. */    OP_SBRA,           /* 91 Start of non-capturing bracket, check empty  */
749      OP_SCBRA,          /* 92 Start of capturing bracket, check empty */
750    OP_BRA             /* 80 This and greater values are used for brackets that    OP_SCOND,          /* 93 Conditional group, check empty */
751                             extract substrings up to EXTRACT_BASIC_MAX. After  
752                             that, use is made of OP_BRANUMBER. */    OP_CREF,           /* 94 Used to hold a capture number as condition */
753  };    OP_RREF,           /* 95 Used to hold a recursion number as condition */
754      OP_DEF,            /* 96 The DEFINE condition */
 /* WARNING WARNING WARNING: There is an implicit assumption in pcre.c and  
 study.c that all opcodes are less than 128 in value. This makes handling UTF-8  
 character sequences easier. */  
   
 /* The highest extraction number before we have to start using additional  
 bytes. (Originally PCRE didn't have support for extraction counts highter than  
 this number.) The value is limited by the number of opcodes left after OP_BRA,  
 i.e. 255 - OP_BRA. We actually set it a bit lower to leave room for additional  
 opcodes. */  
755    
756  #define EXTRACT_BASIC_MAX  100    OP_BRAZERO,        /* 97 These two must remain together and in this */
757      OP_BRAMINZERO      /* 98 order. */
758    };
759    
760    
761  /* 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
# Line 633  for debugging. The macro is referenced o Line 764  for debugging. The macro is referenced o
764  #define OP_NAME_LIST \  #define OP_NAME_LIST \
765    "End", "\\A", "\\G", "\\B", "\\b", "\\D", "\\d",                \    "End", "\\A", "\\G", "\\B", "\\b", "\\D", "\\d",                \
766    "\\S", "\\s", "\\W", "\\w", "Any", "Anybyte",                   \    "\\S", "\\s", "\\W", "\\w", "Any", "Anybyte",                   \
767    "notprop", "prop", "extuni",                                    \    "notprop", "prop", "anynl", "extuni",                           \
768    "\\Z", "\\z",                                                   \    "\\Z", "\\z",                                                   \
769    "Opt", "^", "$", "char", "charnc", "not",                       \    "Opt", "^", "$", "char", "charnc", "not",                       \
770    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
771      "*+","++", "?+", "{",                                           \
772    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
773      "*+","++", "?+", "{",                                           \
774    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
775      "*+","++", "?+", "{",                                           \
776    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \
777    "class", "nclass", "xclass", "Ref", "Recurse", "Callout",       \    "class", "nclass", "xclass", "Ref", "Recurse", "Callout",       \
778    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \
779    "AssertB", "AssertB not", "Reverse", "Once", "Cond", "Cond ref",\    "AssertB", "AssertB not", "Reverse",                            \
780    "Brazero", "Braminzero", "Branumber", "Bra"    "Once", "Bra 0", "Bra", "Cond", "SBra 0", "SBra", "SCond",      \
781      "Cond ref", "Cond rec", "Cond def", "Brazero", "Braminzero"
782    
783    
784  /* 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 659  in UTF-8 mode. The code that uses this t Line 794  in UTF-8 mode. The code that uses this t
794    1,                             /* End                                    */ \    1,                             /* End                                    */ \
795    1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* \A, \G, \B, \B, \D, \d, \S, \s, \W, \w */ \    1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  /* \A, \G, \B, \B, \D, \d, \S, \s, \W, \w */ \
796    1, 1,                          /* Any, Anybyte                           */ \    1, 1,                          /* Any, Anybyte                           */ \
797    3, 3, 1,                       /* NOTPROP, PROP, EXTUNI                  */ \    3, 3, 1, 1,                    /* NOTPROP, PROP, EXTUNI, ANYNL           */ \
798    1, 1, 2, 1, 1,                 /* \Z, \z, Opt, ^, $                      */ \    1, 1, 2, 1, 1,                 /* \Z, \z, Opt, ^, $                      */ \
799    2,                             /* Char  - the minimum length             */ \    2,                             /* Char  - the minimum length             */ \
800    2,                             /* Charnc  - the minimum length           */ \    2,                             /* Charnc  - the minimum length           */ \
# Line 667  in UTF-8 mode. The code that uses this t Line 802  in UTF-8 mode. The code that uses this t
802    /* Positive single-char repeats                            ** These are  */ \    /* Positive single-char repeats                            ** These are  */ \
803    2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??      ** minima in  */ \    2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??      ** minima in  */ \
804    4, 4, 4,                       /* upto, minupto, exact     ** UTF-8 mode */ \    4, 4, 4,                       /* upto, minupto, exact     ** UTF-8 mode */ \
805      2, 2, 2, 4,                    /* *+, ++, ?+, upto+                      */ \
806    /* Negative single-char repeats - only for chars < 256                   */ \    /* Negative single-char repeats - only for chars < 256                   */ \
807    2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \    2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \
808    4, 4, 4,                       /* NOT upto, minupto, exact               */ \    4, 4, 4,                       /* NOT upto, minupto, exact               */ \
809      2, 2, 2, 4,                    /* Possessive *, +, ?, upto               */ \
810    /* Positive type repeats                                                 */ \    /* Positive type repeats                                                 */ \
811    2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \    2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \
812    4, 4, 4,                       /* Type upto, minupto, exact              */ \    4, 4, 4,                       /* Type upto, minupto, exact              */ \
813      2, 2, 2, 4,                    /* Possessive *+, ++, ?+, upto+           */ \
814    /* Character class & ref repeats                                         */ \    /* Character class & ref repeats                                         */ \
815    1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \    1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \
816    5, 5,                          /* CRRANGE, CRMINRANGE                    */ \    5, 5,                          /* CRRANGE, CRMINRANGE                    */ \
# Line 691  in UTF-8 mode. The code that uses this t Line 829  in UTF-8 mode. The code that uses this t
829    1+LINK_SIZE,                   /* Assert behind                          */ \    1+LINK_SIZE,                   /* Assert behind                          */ \
830    1+LINK_SIZE,                   /* Assert behind not                      */ \    1+LINK_SIZE,                   /* Assert behind not                      */ \
831    1+LINK_SIZE,                   /* Reverse                                */ \    1+LINK_SIZE,                   /* Reverse                                */ \
832    1+LINK_SIZE,                   /* Once                                   */ \    1+LINK_SIZE,                   /* ONCE                                   */ \
833      1+LINK_SIZE,                   /* BRA                                    */ \
834      3+LINK_SIZE,                   /* CBRA                                   */ \
835    1+LINK_SIZE,                   /* COND                                   */ \    1+LINK_SIZE,                   /* COND                                   */ \
836      1+LINK_SIZE,                   /* SBRA                                   */ \
837      3+LINK_SIZE,                   /* SCBRA                                  */ \
838      1+LINK_SIZE,                   /* SCOND                                  */ \
839    3,                             /* CREF                                   */ \    3,                             /* CREF                                   */ \
840      3,                             /* RREF                                   */ \
841      1,                             /* DEF                                    */ \
842    1, 1,                          /* BRAZERO, BRAMINZERO                    */ \    1, 1,                          /* BRAZERO, BRAMINZERO                    */ \
   3,                             /* BRANUMBER                              */ \  
   1+LINK_SIZE                    /* BRA                                    */ \  
843    
844    
845  /* A magic value for OP_CREF to indicate the "in recursion" condition. */  /* A magic value for OP_RREF to indicate the "any recursion" condition. */
846    
847  #define CREF_RECURSE  0xffff  #define RREF_ANY  0xffff
848    
849  /* Error code numbers. They are given names so that they can more easily be  /* Error code numbers. They are given names so that they can more easily be
850  tracked. */  tracked. */
# Line 710  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4, Line 853  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,
853         ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,         ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
854         ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,         ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
855         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
856         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47 };         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
857           ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57 };
858    
859  /* 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
860  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 765  typedef struct compile_data { Line 909  typedef struct compile_data {
909    const uschar *fcc;            /* Points to case-flipping table */    const uschar *fcc;            /* Points to case-flipping table */
910    const uschar *cbits;          /* Points to character type table */    const uschar *cbits;          /* Points to character type table */
911    const uschar *ctypes;         /* Points to table of type maps */    const uschar *ctypes;         /* Points to table of type maps */
912      const uschar *start_workspace;/* The start of working space */
913    const uschar *start_code;     /* The start of the compiled code */    const uschar *start_code;     /* The start of the compiled code */
914    const uschar *start_pattern;  /* The start of the pattern */    const uschar *start_pattern;  /* The start of the pattern */
915      const uschar *end_pattern;    /* The end of the pattern */
916      uschar *hwm;                  /* High watermark of workspace */
917    uschar *name_table;           /* The name/number table */    uschar *name_table;           /* The name/number table */
918    int  names_found;             /* Number of entries so far */    int  names_found;             /* Number of entries so far */
919    int  name_entry_size;         /* Size of each entry */    int  name_entry_size;         /* Size of each entry */
920      int  bracount;                /* Count of capturing parens */
921    int  top_backref;             /* Maximum back reference */    int  top_backref;             /* Maximum back reference */
922    unsigned int backref_map;     /* Bitmap of low back refs */    unsigned int backref_map;     /* Bitmap of low back refs */
923      int  external_options;        /* External (initial) options */
924    int  req_varyopt;             /* "After variable item" flag for reqbyte */    int  req_varyopt;             /* "After variable item" flag for reqbyte */
925    BOOL nopartial;               /* Set TRUE if partial won't work */    BOOL nopartial;               /* Set TRUE if partial won't work */
926      int  nltype;                  /* Newline type */
927      int  nllen;                   /* Newline string length */
928      uschar nl[4];                 /* Newline string when fixed length */
929  } compile_data;  } compile_data;
930    
931  /* Structure for maintaining a chain of pointers to the currently incomplete  /* Structure for maintaining a chain of pointers to the currently incomplete
# Line 798  typedef struct recursion_info { Line 950  typedef struct recursion_info {
950    
951  /* When compiling in a mode that doesn't use recursive calls to match(),  /* When compiling in a mode that doesn't use recursive calls to match(),
952  a structure is used to remember local variables on the heap. It is defined in  a structure is used to remember local variables on the heap. It is defined in
953  pcre.c, close to the match() function, so that it is easy to keep it in step  pcre_exec.c, close to the match() function, so that it is easy to keep it in
954  with any changes of local variable. However, the pointer to the current frame  step with any changes of local variable. However, the pointer to the current
955  must be saved in some "static" place over a longjmp(). We declare the  frame must be saved in some "static" place over a longjmp(). We declare the
956  structure here so that we can put a pointer in the match_data structure.  structure here so that we can put a pointer in the match_data structure. NOTE:
957  NOTE: This isn't used for a "normal" compilation of pcre. */  This isn't used for a "normal" compilation of pcre. */
958    
959  struct heapframe;  struct heapframe;
960    
961    /* Structure for building a chain of data for holding the values of the subject
962    pointer at the start of each subpattern, so as to detect when an empty string
963    has been matched by a subpattern - to break infinite loops. */
964    
965    typedef struct eptrblock {
966      struct eptrblock *epb_prev;
967      USPTR epb_saved_eptr;
968    } eptrblock;
969    
970    
971  /* Structure for passing "static" information around between the functions  /* Structure for passing "static" information around between the functions
972  doing traditional NFA matching, so that they are thread-safe. */  doing traditional NFA matching, so that they are thread-safe. */
973    
# Line 816  typedef struct match_data { Line 978  typedef struct match_data {
978    int   *offset_vector;         /* Offset vector */    int   *offset_vector;         /* Offset vector */
979    int    offset_end;            /* One past the end */    int    offset_end;            /* One past the end */
980    int    offset_max;            /* The maximum usable for return data */    int    offset_max;            /* The maximum usable for return data */
981      int    nltype;                /* Newline type */
982      int    nllen;                 /* Newline string length */
983      uschar nl[4];                 /* Newline string when fixed */
984    const uschar *lcc;            /* Points to lower casing table */    const uschar *lcc;            /* Points to lower casing table */
985    const uschar *ctypes;         /* Points to table of type maps */    const uschar *ctypes;         /* Points to table of type maps */
986    BOOL   offset_overflow;       /* Set if too many extractions */    BOOL   offset_overflow;       /* Set if too many extractions */
# Line 834  typedef struct match_data { Line 999  typedef struct match_data {
999    int    end_offset_top;        /* Highwater mark at end of match */    int    end_offset_top;        /* Highwater mark at end of match */
1000    int    capture_last;          /* Most recent capture number */    int    capture_last;          /* Most recent capture number */
1001    int    start_offset;          /* The start offset value */    int    start_offset;          /* The start offset value */
1002      eptrblock *eptrchain;         /* Chain of eptrblocks for tail recursions */
1003      int    eptrn;                 /* Next free eptrblock */
1004    recursion_info *recursive;    /* Linked list of recursion data */    recursion_info *recursive;    /* Linked list of recursion data */
1005    void  *callout_data;          /* To pass back to callouts */    void  *callout_data;          /* To pass back to callouts */
1006    struct heapframe *thisframe;  /* Used only when compiling for no recursion */    struct heapframe *thisframe;  /* Used only when compiling for no recursion */
# Line 849  typedef struct dfa_match_data { Line 1016  typedef struct dfa_match_data {
1016    const uschar *tables;         /* Character tables */    const uschar *tables;         /* Character tables */
1017    int   moptions;               /* Match options */    int   moptions;               /* Match options */
1018    int   poptions;               /* Pattern options */    int   poptions;               /* Pattern options */
1019      int    nltype;                /* Newline type */
1020      int    nllen;                 /* Newline string length */
1021      uschar nl[4];                 /* Newline string when fixed */
1022    void  *callout_data;          /* To pass back to callouts */    void  *callout_data;          /* To pass back to callouts */
1023  } dfa_match_data;  } dfa_match_data;
1024    
# Line 919  extern const uschar _pcre_OP_lengths[]; Line 1089  extern const uschar _pcre_OP_lengths[];
1089  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
1090  sense, but are not part of the PCRE public API. */  sense, but are not part of the PCRE public API. */
1091    
1092  extern int         _pcre_ord2utf8(int, uschar *);  extern BOOL         _pcre_is_newline(const uschar *, int, const uschar *,
1093  extern real_pcre * _pcre_try_flipped(const real_pcre *, real_pcre *,                        int *, BOOL);
1094                       const pcre_study_data *, pcre_study_data *);  extern int          _pcre_ord2utf8(int, uschar *);
1095  extern int         _pcre_ucp_findprop(const int, int *, int *);  extern real_pcre   *_pcre_try_flipped(const real_pcre *, real_pcre *,
1096  extern int         _pcre_ucp_othercase(const int);                        const pcre_study_data *, pcre_study_data *);
1097  extern int         _pcre_valid_utf8(const uschar *, int);  extern int          _pcre_ucp_findprop(const unsigned int, int *, int *);
1098  extern BOOL        _pcre_xclass(int, const uschar *);  extern unsigned int _pcre_ucp_othercase(const unsigned int);
1099    extern int          _pcre_valid_utf8(const uschar *, int);
1100    extern BOOL         _pcre_was_newline(const uschar *, int, const uschar *,
1101                          int *, BOOL);
1102    extern BOOL         _pcre_xclass(int, const uschar *);
1103    
1104  #endif  #endif
1105    

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