/[pcre]/code/trunk/pcre_internal.h
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revision 118 by ph10, Fri Mar 9 16:17:46 2007 UTC revision 207 by ph10, Mon Aug 6 09:32:14 2007 UTC
# Line 67  be absolutely sure we get our version. * Line 67  be absolutely sure we get our version. *
67  #endif  #endif
68    
69    
 /* Get the definitions provided by running "configure" */  
   
 #include "config.h"  
   
70  /* Standard C headers plus the external interface definition. The only time  /* Standard C headers plus the external interface definition. The only time
71  setjmp and stdarg are used is when NO_RECURSE is set. */  setjmp and stdarg are used is when NO_RECURSE is set. */
72    
# Line 83  setjmp and stdarg are used is when NO_RE Line 79  setjmp and stdarg are used is when NO_RE
79  #include <stdlib.h>  #include <stdlib.h>
80  #include <string.h>  #include <string.h>
81    
82  #ifndef PCRE_SPY  /* When compiling a DLL for Windows, the exported symbols have to be declared
83  #define PCRE_DEFINITION       /* Win32 __declspec(export) trigger for .dll */  using some MS magic. I found some useful information on this web page:
84    http://msdn2.microsoft.com/en-us/library/y4h7bcy6(VS.80).aspx. According to the
85    information there, using __declspec(dllexport) without "extern" we have a
86    definition; with "extern" we have a declaration. The settings here override the
87    setting in pcre.h (which is included below); it defines only PCRE_EXP_DECL,
88    which is all that is needed for applications (they just import the symbols). We
89    use:
90    
91      PCRE_EXP_DECL       for declarations
92      PCRE_EXP_DEFN       for definitions of exported functions
93      PCRE_EXP_DATA_DEFN  for definitions of exported variables
94    
95    The reason for the two DEFN macros is that in non-Windows environments, one
96    does not want to have "extern" before variable definitions because it leads to
97    compiler warnings. So we distinguish between functions and variables. In
98    Windows, the two should always be the same.
99    
100    The reason for wrapping this in #ifndef PCRE_EXP_DECL is so that pcretest,
101    which is an application, but needs to import this file in order to "peek" at
102    internals, can #include pcre.h first to get an application's-eye view.
103    
104    In principle, people compiling for non-Windows, non-Unix-like (i.e. uncommon,
105    special-purpose environments) might want to stick other stuff in front of
106    exported symbols. That's why, in the non-Windows case, we set PCRE_EXP_DEFN and
107    PCRE_EXP_DATA_DEFN only if they are not already set. */
108    
109    #ifndef PCRE_EXP_DECL
110    #  ifdef _WIN32
111    #    ifndef PCRE_STATIC
112    #      define PCRE_EXP_DECL       extern __declspec(dllexport)
113    #      define PCRE_EXP_DEFN       __declspec(dllexport)
114    #      define PCRE_EXP_DATA_DEFN  __declspec(dllexport)
115    #    else
116    #      define PCRE_EXP_DECL       extern
117    #      define PCRE_EXP_DEFN
118    #      define PCRE_EXP_DATA_DEFN
119    #    endif
120    #  else
121    #    ifdef __cplusplus
122    #      define PCRE_EXP_DECL       extern "C"
123    #    else
124    #      define PCRE_EXP_DECL       extern
125    #    endif
126    #    ifndef PCRE_EXP_DEFN
127    #      define PCRE_EXP_DEFN       PCRE_EXP_DECL
128    #    endif
129    #    ifndef PCRE_EXP_DATA_DEFN
130    #      define PCRE_EXP_DATA_DEFN
131    #    endif
132    #  endif
133  #endif  #endif
134    
135  /* 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 125  characters only go up to 0x7fffffff (tho Line 170  characters only go up to 0x7fffffff (tho
170  #define NOTACHAR 0xffffffff  #define NOTACHAR 0xffffffff
171    
172  /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,  /* PCRE is able to support several different kinds of newline (CR, LF, CRLF,
173  and "all" at present). The following macros are used to package up testing for  "any" and "anycrlf" at present). The following macros are used to package up
174  newlines. NLBLOCK, PSSTART, and PSEND are defined in the various modules to  testing for newlines. NLBLOCK, PSSTART, and PSEND are defined in the various
175  indicate in which datablock the parameters exist, and what the start/end of  modules to indicate in which datablock the parameters exist, and what the
176  string field names are. */  start/end of string field names are. */
177    
178  #define NLTYPE_FIXED   0     /* Newline is a fixed length string */  #define NLTYPE_FIXED    0     /* Newline is a fixed length string */
179  #define NLTYPE_ANY     1     /* Newline is any Unicode line ending */  #define NLTYPE_ANY      1     /* Newline is any Unicode line ending */
180    #define NLTYPE_ANYCRLF  2     /* Newline is CR, LF, or CRLF */
181    
182  /* This macro checks for a newline at the given position */  /* This macro checks for a newline at the given position */
183    
184  #define IS_NEWLINE(p) \  #define IS_NEWLINE(p) \
185    ((NLBLOCK->nltype != NLTYPE_FIXED)? \    ((NLBLOCK->nltype != NLTYPE_FIXED)? \
186      ((p) < NLBLOCK->PSEND && \      ((p) < NLBLOCK->PSEND && \
187       _pcre_is_newline((p), NLBLOCK->PSEND, &(NLBLOCK->nllen), utf8) \       _pcre_is_newline((p), NLBLOCK->nltype, NLBLOCK->PSEND, &(NLBLOCK->nllen),\
188      ) \         utf8)) \
189      : \      : \
190      ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \      ((p) <= NLBLOCK->PSEND - NLBLOCK->nllen && \
191       (p)[0] == NLBLOCK->nl[0] && \       (p)[0] == NLBLOCK->nl[0] && \
# Line 152  string field names are. */ Line 198  string field names are. */
198  #define WAS_NEWLINE(p) \  #define WAS_NEWLINE(p) \
199    ((NLBLOCK->nltype != NLTYPE_FIXED)? \    ((NLBLOCK->nltype != NLTYPE_FIXED)? \
200      ((p) > NLBLOCK->PSSTART && \      ((p) > NLBLOCK->PSSTART && \
201       _pcre_was_newline((p), NLBLOCK->PSSTART, &(NLBLOCK->nllen), utf8) \       _pcre_was_newline((p), NLBLOCK->nltype, NLBLOCK->PSSTART, \
202      ) \         &(NLBLOCK->nllen), utf8)) \
203      : \      : \
204      ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \      ((p) >= NLBLOCK->PSSTART + NLBLOCK->nllen && \
205       (p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \       (p)[-NLBLOCK->nllen] == NLBLOCK->nl[0] && \
# Line 178  must begin with PCRE_. */ Line 224  must begin with PCRE_. */
224  #define USPTR const unsigned char *  #define USPTR const unsigned char *
225  #endif  #endif
226    
227    
228    
229  /* Include the public PCRE header and the definitions of UCP character property  /* Include the public PCRE header and the definitions of UCP character property
230  values. */  values. */
231    
# Line 202  define a macro for memmove() if HAVE_MEM Line 250  define a macro for memmove() if HAVE_MEM
250  is set. Otherwise, include an emulating function for those systems that have  is set. Otherwise, include an emulating function for those systems that have
251  neither (there some non-Unix environments where this is the case). */  neither (there some non-Unix environments where this is the case). */
252    
253  #if ! HAVE_MEMMOVE  #ifndef HAVE_MEMMOVE
254  #undef  memmove        /* some systems may have a macro */  #undef  memmove        /* some systems may have a macro */
255  #if HAVE_BCOPY  #ifdef HAVE_BCOPY
256  #define memmove(a, b, c) bcopy(b, a, c)  #define memmove(a, b, c) bcopy(b, a, c)
257  #else  /* HAVE_BCOPY */  #else  /* HAVE_BCOPY */
258  static void *  static void *
# Line 223  if (dest > src) Line 271  if (dest > src)
271  else  else
272    {    {
273    for (i = 0; i < n; ++i) *dest++ = *src++;    for (i = 0; i < n; ++i) *dest++ = *src++;
274    return (void *)(dest - n);    return (void *)(dest - n);
275    }    }
276  }  }
277  #define memmove(a, b, c) pcre_memmove(a, b, c)  #define memmove(a, b, c) pcre_memmove(a, b, c)
278  #endif   /* not HAVE_BCOPY */  #endif   /* not HAVE_BCOPY */
# Line 310  capturing parenthesis numbers in back re Line 358  capturing parenthesis numbers in back re
358    
359  /* When UTF-8 encoding is being used, a character is no longer just a single  /* When UTF-8 encoding is being used, a character is no longer just a single
360  byte. The macros for character handling generate simple sequences when used in  byte. The macros for character handling generate simple sequences when used in
361  byte-mode, and more complicated ones for UTF-8 characters. */  byte-mode, and more complicated ones for UTF-8 characters. BACKCHAR should
362    never be called in byte mode. To make sure it can never even appear when UTF-8
363    support is omitted, we don't even define it. */
364    
365  #ifndef SUPPORT_UTF8  #ifndef SUPPORT_UTF8
366  #define GETCHAR(c, eptr) c = *eptr;  #define GETCHAR(c, eptr) c = *eptr;
# Line 318  byte-mode, and more complicated ones for Line 368  byte-mode, and more complicated ones for
368  #define GETCHARINC(c, eptr) c = *eptr++;  #define GETCHARINC(c, eptr) c = *eptr++;
369  #define GETCHARINCTEST(c, eptr) c = *eptr++;  #define GETCHARINCTEST(c, eptr) c = *eptr++;
370  #define GETCHARLEN(c, eptr, len) c = *eptr;  #define GETCHARLEN(c, eptr, len) c = *eptr;
371  #define BACKCHAR(eptr)  /* #define BACKCHAR(eptr) */
372    
373  #else   /* SUPPORT_UTF8 */  #else   /* SUPPORT_UTF8 */
374    
# Line 411  if there are extra bytes. This is called Line 461  if there are extra bytes. This is called
461      }      }
462    
463  /* 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
464  it is. Called only in UTF-8 mode. */  it is. This is called only in UTF-8 mode - we don't put a test within the macro
465    because almost all calls are already within a block of UTF-8 only code. */
466    
467  #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--;  #define BACKCHAR(eptr) while((*eptr & 0xc0) == 0x80) eptr--
468    
469  #endif  #endif
470    
# Line 449  bits. */ Line 500  bits. */
500  /* Masks for identifying the public options that are permitted at compile  /* Masks for identifying the public options that are permitted at compile
501  time, run time, or study time, respectively. */  time, run time, or study time, respectively. */
502    
503  #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY)  #define PCRE_NEWLINE_BITS (PCRE_NEWLINE_CR|PCRE_NEWLINE_LF|PCRE_NEWLINE_ANY| \
504                               PCRE_NEWLINE_ANYCRLF)
505    
506  #define PUBLIC_OPTIONS \  #define PUBLIC_OPTIONS \
507    (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \    (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
# Line 551  ESC_Z to detect the types that may be re Line 603  ESC_Z to detect the types that may be re
603  consume 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
604  character, that code will have to change. */  character, that code will have to change. */
605    
606  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_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
607         ESC_w, ESC_dum1, ESC_C, ESC_P, ESC_p, ESC_R, ESC_X, ESC_Z, ESC_z,         ESC_W, ESC_w, ESC_dum1, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H, ESC_h,
608         ESC_E, ESC_Q, ESC_k, ESC_REF };         ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z, ESC_E, ESC_Q, ESC_k, ESC_REF };
609    
610    
611  /* 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
# Line 575  enum { Line 627  enum {
627    
628    OP_SOD,            /* 1 Start of data: \A */    OP_SOD,            /* 1 Start of data: \A */
629    OP_SOM,            /* 2 Start of match (subject + offset): \G */    OP_SOM,            /* 2 Start of match (subject + offset): \G */
630    OP_NOT_WORD_BOUNDARY,  /*  3 \B */    OP_SET_SOM,        /* 3 Set start of match (\K) */
631    OP_WORD_BOUNDARY,      /*  4 \b */    OP_NOT_WORD_BOUNDARY,  /*  4 \B */
632    OP_NOT_DIGIT,          /*  5 \D */    OP_WORD_BOUNDARY,      /*  5 \b */
633    OP_DIGIT,              /*  6 \d */    OP_NOT_DIGIT,          /*  6 \D */
634    OP_NOT_WHITESPACE,     /*  7 \S */    OP_DIGIT,              /*  7 \d */
635    OP_WHITESPACE,         /*  8 \s */    OP_NOT_WHITESPACE,     /*  8 \S */
636    OP_NOT_WORDCHAR,       /*  9 \W */    OP_WHITESPACE,         /*  9 \s */
637    OP_WORDCHAR,           /* 10 \w */    OP_NOT_WORDCHAR,       /* 10 \W */
638    OP_ANY,            /* 11 Match any character */    OP_WORDCHAR,           /* 11 \w */
639    OP_ANYBYTE,        /* 12 Match any byte (\C); different to OP_ANY for UTF-8 */    OP_ANY,            /* 12 Match any character */
640    OP_NOTPROP,        /* 13 \P (not Unicode property) */    OP_ANYBYTE,        /* 13 Match any byte (\C); different to OP_ANY for UTF-8 */
641    OP_PROP,           /* 14 \p (Unicode property) */    OP_NOTPROP,        /* 14 \P (not Unicode property) */
642    OP_ANYNL,          /* 15 \R (any newline sequence) */    OP_PROP,           /* 15 \p (Unicode property) */
643    OP_EXTUNI,         /* 16 \X (extended Unicode sequence */    OP_ANYNL,          /* 16 \R (any newline sequence) */
644    OP_EODN,           /* 17 End of data or \n at end of data: \Z. */    OP_NOT_HSPACE,     /* 17 \H (not horizontal whitespace) */
645    OP_EOD,            /* 18 End of data: \z */    OP_HSPACE,         /* 18 \h (horizontal whitespace) */
646      OP_NOT_VSPACE,     /* 19 \V (not vertical whitespace) */
647    OP_OPT,            /* 19 Set runtime options */    OP_VSPACE,         /* 20 \v (vertical whitespace) */
648    OP_CIRC,           /* 20 Start of line - varies with multiline switch */    OP_EXTUNI,         /* 21 \X (extended Unicode sequence */
649    OP_DOLL,           /* 21 End of line - varies with multiline switch */    OP_EODN,           /* 22 End of data or \n at end of data: \Z. */
650    OP_CHAR,           /* 22 Match one character, casefully */    OP_EOD,            /* 23 End of data: \z */
651    OP_CHARNC,         /* 23 Match one character, caselessly */  
652    OP_NOT,            /* 24 Match one character, not the following one */    OP_OPT,            /* 24 Set runtime options */
653      OP_CIRC,           /* 25 Start of line - varies with multiline switch */
654    OP_STAR,           /* 25 The maximizing and minimizing versions of */    OP_DOLL,           /* 26 End of line - varies with multiline switch */
655    OP_MINSTAR,        /* 26 these six opcodes must come in pairs, with */    OP_CHAR,           /* 27 Match one character, casefully */
656    OP_PLUS,           /* 27 the minimizing one second. */    OP_CHARNC,         /* 28 Match one character, caselessly */
657    OP_MINPLUS,        /* 28 This first set applies to single characters.*/    OP_NOT,            /* 29 Match one character, not the following one */
658    OP_QUERY,          /* 29 */  
659    OP_MINQUERY,       /* 30 */    OP_STAR,           /* 30 The maximizing and minimizing versions of */
660      OP_MINSTAR,        /* 31 these six opcodes must come in pairs, with */
661    OP_UPTO,           /* 31 From 0 to n matches */    OP_PLUS,           /* 32 the minimizing one second. */
662    OP_MINUPTO,        /* 32 */    OP_MINPLUS,        /* 33 This first set applies to single characters.*/
663    OP_EXACT,          /* 33 Exactly n matches */    OP_QUERY,          /* 34 */
664      OP_MINQUERY,       /* 35 */
665    OP_POSSTAR,        /* 34 Possessified star */  
666    OP_POSPLUS,        /* 35 Possessified plus */    OP_UPTO,           /* 36 From 0 to n matches */
667    OP_POSQUERY,       /* 36 Posesssified query */    OP_MINUPTO,        /* 37 */
668    OP_POSUPTO,        /* 37 Possessified upto */    OP_EXACT,          /* 38 Exactly n matches */
669    
670    OP_NOTSTAR,        /* 38 The maximizing and minimizing versions of */    OP_POSSTAR,        /* 39 Possessified star */
671    OP_NOTMINSTAR,     /* 39 these six opcodes must come in pairs, with */    OP_POSPLUS,        /* 40 Possessified plus */
672    OP_NOTPLUS,        /* 40 the minimizing one second. They must be in */    OP_POSQUERY,       /* 41 Posesssified query */
673    OP_NOTMINPLUS,     /* 41 exactly the same order as those above. */    OP_POSUPTO,        /* 42 Possessified upto */
674    OP_NOTQUERY,       /* 42 This set applies to "not" single characters. */  
675    OP_NOTMINQUERY,    /* 43 */    OP_NOTSTAR,        /* 43 The maximizing and minimizing versions of */
676      OP_NOTMINSTAR,     /* 44 these six opcodes must come in pairs, with */
677    OP_NOTUPTO,        /* 44 From 0 to n matches */    OP_NOTPLUS,        /* 45 the minimizing one second. They must be in */
678    OP_NOTMINUPTO,     /* 45 */    OP_NOTMINPLUS,     /* 46 exactly the same order as those above. */
679    OP_NOTEXACT,       /* 46 Exactly n matches */    OP_NOTQUERY,       /* 47 This set applies to "not" single characters. */
680      OP_NOTMINQUERY,    /* 48 */
681    OP_NOTPOSSTAR,     /* 47 Possessified versions */  
682    OP_NOTPOSPLUS,     /* 48 */    OP_NOTUPTO,        /* 49 From 0 to n matches */
683    OP_NOTPOSQUERY,    /* 49 */    OP_NOTMINUPTO,     /* 50 */
684    OP_NOTPOSUPTO,     /* 50 */    OP_NOTEXACT,       /* 51 Exactly n matches */
685    
686    OP_TYPESTAR,       /* 51 The maximizing and minimizing versions of */    OP_NOTPOSSTAR,     /* 52 Possessified versions */
687    OP_TYPEMINSTAR,    /* 52 these six opcodes must come in pairs, with */    OP_NOTPOSPLUS,     /* 53 */
688    OP_TYPEPLUS,       /* 53 the minimizing one second. These codes must */    OP_NOTPOSQUERY,    /* 54 */
689    OP_TYPEMINPLUS,    /* 54 be in exactly the same order as those above. */    OP_NOTPOSUPTO,     /* 55 */
690    OP_TYPEQUERY,      /* 55 This set applies to character types such as \d */  
691    OP_TYPEMINQUERY,   /* 56 */    OP_TYPESTAR,       /* 56 The maximizing and minimizing versions of */
692      OP_TYPEMINSTAR,    /* 57 these six opcodes must come in pairs, with */
693    OP_TYPEUPTO,       /* 57 From 0 to n matches */    OP_TYPEPLUS,       /* 58 the minimizing one second. These codes must */
694    OP_TYPEMINUPTO,    /* 58 */    OP_TYPEMINPLUS,    /* 59 be in exactly the same order as those above. */
695    OP_TYPEEXACT,      /* 59 Exactly n matches */    OP_TYPEQUERY,      /* 60 This set applies to character types such as \d */
696      OP_TYPEMINQUERY,   /* 61 */
697    OP_TYPEPOSSTAR,    /* 60 Possessified versions */  
698    OP_TYPEPOSPLUS,    /* 61 */    OP_TYPEUPTO,       /* 62 From 0 to n matches */
699    OP_TYPEPOSQUERY,   /* 62 */    OP_TYPEMINUPTO,    /* 63 */
700    OP_TYPEPOSUPTO,    /* 63 */    OP_TYPEEXACT,      /* 64 Exactly n matches */
701    
702    OP_CRSTAR,         /* 64 The maximizing and minimizing versions of */    OP_TYPEPOSSTAR,    /* 65 Possessified versions */
703    OP_CRMINSTAR,      /* 65 all these opcodes must come in pairs, with */    OP_TYPEPOSPLUS,    /* 66 */
704    OP_CRPLUS,         /* 66 the minimizing one second. These codes must */    OP_TYPEPOSQUERY,   /* 67 */
705    OP_CRMINPLUS,      /* 67 be in exactly the same order as those above. */    OP_TYPEPOSUPTO,    /* 68 */
706    OP_CRQUERY,        /* 68 These are for character classes and back refs */  
707    OP_CRMINQUERY,     /* 69 */    OP_CRSTAR,         /* 69 The maximizing and minimizing versions of */
708    OP_CRRANGE,        /* 70 These are different to the three sets above. */    OP_CRMINSTAR,      /* 70 all these opcodes must come in pairs, with */
709    OP_CRMINRANGE,     /* 71 */    OP_CRPLUS,         /* 71 the minimizing one second. These codes must */
710      OP_CRMINPLUS,      /* 72 be in exactly the same order as those above. */
711      OP_CRQUERY,        /* 73 These are for character classes and back refs */
712      OP_CRMINQUERY,     /* 74 */
713      OP_CRRANGE,        /* 75 These are different to the three sets above. */
714      OP_CRMINRANGE,     /* 76 */
715    
716    OP_CLASS,          /* 72 Match a character class, chars < 256 only */    OP_CLASS,          /* 77 Match a character class, chars < 256 only */
717    OP_NCLASS,         /* 73 Same, but the bitmap was created from a negative    OP_NCLASS,         /* 78 Same, but the bitmap was created from a negative
718                             class - the difference is relevant only when a UTF-8                             class - the difference is relevant only when a UTF-8
719                             character > 255 is encountered. */                             character > 255 is encountered. */
720    
721    OP_XCLASS,         /* 74 Extended class for handling UTF-8 chars within the    OP_XCLASS,         /* 79 Extended class for handling UTF-8 chars within the
722                             class. This does both positive and negative. */                             class. This does both positive and negative. */
723    
724    OP_REF,            /* 75 Match a back reference */    OP_REF,            /* 80 Match a back reference */
725    OP_RECURSE,        /* 76 Match a numbered subpattern (possibly recursive) */    OP_RECURSE,        /* 81 Match a numbered subpattern (possibly recursive) */
726    OP_CALLOUT,        /* 77 Call out to external function if provided */    OP_CALLOUT,        /* 82 Call out to external function if provided */
727    
728    OP_ALT,            /* 78 Start of alternation */    OP_ALT,            /* 83 Start of alternation */
729    OP_KET,            /* 79 End of group that doesn't have an unbounded repeat */    OP_KET,            /* 84 End of group that doesn't have an unbounded repeat */
730    OP_KETRMAX,        /* 80 These two must remain together and in this */    OP_KETRMAX,        /* 85 These two must remain together and in this */
731    OP_KETRMIN,        /* 81 order. They are for groups the repeat for ever. */    OP_KETRMIN,        /* 86 order. They are for groups the repeat for ever. */
732    
733    /* The assertions must come before BRA, CBRA, ONCE, and COND.*/    /* The assertions must come before BRA, CBRA, ONCE, and COND.*/
734    
735    OP_ASSERT,         /* 82 Positive lookahead */    OP_ASSERT,         /* 87 Positive lookahead */
736    OP_ASSERT_NOT,     /* 83 Negative lookahead */    OP_ASSERT_NOT,     /* 88 Negative lookahead */
737    OP_ASSERTBACK,     /* 84 Positive lookbehind */    OP_ASSERTBACK,     /* 89 Positive lookbehind */
738    OP_ASSERTBACK_NOT, /* 85 Negative lookbehind */    OP_ASSERTBACK_NOT, /* 90 Negative lookbehind */
739    OP_REVERSE,        /* 86 Move pointer back - used in lookbehind assertions */    OP_REVERSE,        /* 91 Move pointer back - used in lookbehind assertions */
740    
741    /* ONCE, BRA, CBRA, and COND must come after the assertions, with ONCE first,    /* ONCE, BRA, CBRA, and COND must come after the assertions, with ONCE first,
742    as there's 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. */
743    
744    OP_ONCE,           /* 87 Atomic group */    OP_ONCE,           /* 92 Atomic group */
745    OP_BRA,            /* 88 Start of non-capturing bracket */    OP_BRA,            /* 93 Start of non-capturing bracket */
746    OP_CBRA,           /* 89 Start of capturing bracket */    OP_CBRA,           /* 94 Start of capturing bracket */
747    OP_COND,           /* 90 Conditional group */    OP_COND,           /* 95 Conditional group */
748    
749    /* These three must follow the previous three, in the same order. There's a    /* These three must follow the previous three, in the same order. There's a
750    check for >= SBRA to distinguish the two sets. */    check for >= SBRA to distinguish the two sets. */
751    
752    OP_SBRA,           /* 91 Start of non-capturing bracket, check empty  */    OP_SBRA,           /* 96 Start of non-capturing bracket, check empty  */
753    OP_SCBRA,          /* 92 Start of capturing bracket, check empty */    OP_SCBRA,          /* 97 Start of capturing bracket, check empty */
754    OP_SCOND,          /* 93 Conditional group, check empty */    OP_SCOND,          /* 98 Conditional group, check empty */
755    
756    OP_CREF,           /* 94 Used to hold a capture number as condition */    OP_CREF,           /* 99 Used to hold a capture number as condition */
757    OP_RREF,           /* 95 Used to hold a recursion number as condition */    OP_RREF,           /* 100 Used to hold a recursion number as condition */
758    OP_DEF,            /* 96 The DEFINE condition */    OP_DEF,            /* 101 The DEFINE condition */
759    
760    OP_BRAZERO,        /* 97 These two must remain together and in this */    OP_BRAZERO,        /* 102 These two must remain together and in this */
761    OP_BRAMINZERO      /* 98 order. */    OP_BRAMINZERO      /* 103 order. */
762  };  };
763    
764    
# Line 709  enum { Line 766  enum {
766  for debugging. The macro is referenced only in pcre_printint.c. */  for debugging. The macro is referenced only in pcre_printint.c. */
767    
768  #define OP_NAME_LIST \  #define OP_NAME_LIST \
769    "End", "\\A", "\\G", "\\B", "\\b", "\\D", "\\d",                \    "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \
770    "\\S", "\\s", "\\W", "\\w", "Any", "Anybyte",                   \    "\\S", "\\s", "\\W", "\\w", "Any", "Anybyte",                   \
771    "notprop", "prop", "anynl", "extuni",                           \    "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \
772    "\\Z", "\\z",                                                   \    "extuni",  "\\Z", "\\z",                                        \
773    "Opt", "^", "$", "char", "charnc", "not",                       \    "Opt", "^", "$", "char", "charnc", "not",                       \
774    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
775    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
# Line 724  for debugging. The macro is referenced o Line 781  for debugging. The macro is referenced o
781    "class", "nclass", "xclass", "Ref", "Recurse", "Callout",       \    "class", "nclass", "xclass", "Ref", "Recurse", "Callout",       \
782    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \
783    "AssertB", "AssertB not", "Reverse",                            \    "AssertB", "AssertB not", "Reverse",                            \
784    "Once", "Bra 0", "Bra", "Cond", "SBra 0", "SBra", "SCond",      \    "Once", "Bra", "CBra", "Cond", "SBra", "SCBra", "SCond",        \
785    "Cond ref", "Cond rec", "Cond def", "Brazero", "Braminzero"    "Cond ref", "Cond rec", "Cond def", "Brazero", "Braminzero"
786    
787    
# Line 739  in UTF-8 mode. The code that uses this t Line 796  in UTF-8 mode. The code that uses this t
796    
797  #define OP_LENGTHS \  #define OP_LENGTHS \
798    1,                             /* End                                    */ \    1,                             /* End                                    */ \
799    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,                 /* \A, \G, \K, \B, \b                     */ \
800      1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \
801    1, 1,                          /* Any, Anybyte                           */ \    1, 1,                          /* Any, Anybyte                           */ \
802    3, 3, 1, 1,                    /* NOTPROP, PROP, EXTUNI, ANYNL           */ \    3, 3, 1,                       /* NOTPROP, PROP, EXTUNI                  */ \
803      1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
804    1, 1, 2, 1, 1,                 /* \Z, \z, Opt, ^, $                      */ \    1, 1, 2, 1, 1,                 /* \Z, \z, Opt, ^, $                      */ \
805    2,                             /* Char  - the minimum length             */ \    2,                             /* Char  - the minimum length             */ \
806    2,                             /* Charnc  - the minimum length           */ \    2,                             /* Charnc  - the minimum length           */ \
# Line 801  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4, Line 860  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,
860         ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,         ERR20, ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR28, ERR29,
861         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
862         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
863         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57 };         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58 };
864    
865  /* 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
866  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 890  typedef struct recursion_info { Line 949  typedef struct recursion_info {
949    struct recursion_info *prevrec; /* Previous recursion record (or NULL) */    struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
950    int group_num;                /* Number of group that was called */    int group_num;                /* Number of group that was called */
951    const uschar *after_call;     /* "Return value": points after the call in the expr */    const uschar *after_call;     /* "Return value": points after the call in the expr */
952    USPTR save_start;             /* Old value of md->start_match */    USPTR save_start;             /* Old value of mstart */
953    int *offset_save;             /* Pointer to start of saved offsets */    int *offset_save;             /* Pointer to start of saved offsets */
954    int saved_max;                /* Number of saved offsets */    int saved_max;                /* Number of saved offsets */
955  } recursion_info;  } recursion_info;
956    
 /* When compiling in a mode that doesn't use recursive calls to match(),  
 a structure is used to remember local variables on the heap. It is defined in  
 pcre_exec.c, close to the match() function, so that it is easy to keep it in  
 step with any changes of local variable. However, the pointer to the current  
 frame must be saved in some "static" place over a longjmp(). We declare the  
 structure here so that we can put a pointer in the match_data structure. NOTE:  
 This isn't used for a "normal" compilation of pcre. */  
   
 struct heapframe;  
   
957  /* 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
958  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
959  has been matched by a subpattern - to break infinite loops. */  has been matched by a subpattern - to break infinite loops. */
# Line 941  typedef struct match_data { Line 990  typedef struct match_data {
990    const uschar *start_code;     /* For use when recursing */    const uschar *start_code;     /* For use when recursing */
991    USPTR  start_subject;         /* Start of the subject string */    USPTR  start_subject;         /* Start of the subject string */
992    USPTR  end_subject;           /* End of the subject string */    USPTR  end_subject;           /* End of the subject string */
993    USPTR  start_match;           /* Start of this match attempt */    USPTR  start_match_ptr;       /* Start of matched string */
994    USPTR  end_match_ptr;         /* Subject position at end match */    USPTR  end_match_ptr;         /* Subject position at end match */
995    int    end_offset_top;        /* Highwater mark at end of match */    int    end_offset_top;        /* Highwater mark at end of match */
996    int    capture_last;          /* Most recent capture number */    int    capture_last;          /* Most recent capture number */
# Line 950  typedef struct match_data { Line 999  typedef struct match_data {
999    int    eptrn;                 /* Next free eptrblock */    int    eptrn;                 /* Next free eptrblock */
1000    recursion_info *recursive;    /* Linked list of recursion data */    recursion_info *recursive;    /* Linked list of recursion data */
1001    void  *callout_data;          /* To pass back to callouts */    void  *callout_data;          /* To pass back to callouts */
   struct heapframe *thisframe;  /* Used only when compiling for no recursion */  
1002  } match_data;  } match_data;
1003    
1004  /* 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
# Line 1036  extern const uschar _pcre_OP_lengths[]; Line 1084  extern const uschar _pcre_OP_lengths[];
1084  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
1085  sense, but are not part of the PCRE public API. */  sense, but are not part of the PCRE public API. */
1086    
1087  extern BOOL         _pcre_is_newline(const uschar *, const uschar *, int *,  extern BOOL         _pcre_is_newline(const uschar *, int, const uschar *,
1088                        BOOL);                        int *, BOOL);
1089  extern int          _pcre_ord2utf8(int, uschar *);  extern int          _pcre_ord2utf8(int, uschar *);
1090  extern real_pcre   *_pcre_try_flipped(const real_pcre *, real_pcre *,  extern real_pcre   *_pcre_try_flipped(const real_pcre *, real_pcre *,
1091                        const pcre_study_data *, pcre_study_data *);                        const pcre_study_data *, pcre_study_data *);
1092  extern int          _pcre_ucp_findprop(const unsigned int, int *, int *);  extern int          _pcre_ucp_findprop(const unsigned int, int *, int *);
1093  extern unsigned int _pcre_ucp_othercase(const unsigned int);  extern unsigned int _pcre_ucp_othercase(const unsigned int);
1094  extern int          _pcre_valid_utf8(const uschar *, int);  extern int          _pcre_valid_utf8(const uschar *, int);
1095  extern BOOL         _pcre_was_newline(const uschar *, const uschar *, int *,  extern BOOL         _pcre_was_newline(const uschar *, int, const uschar *,
1096                        BOOL);                        int *, BOOL);
1097  extern BOOL         _pcre_xclass(int, const uschar *);  extern BOOL         _pcre_xclass(int, const uschar *);
1098    
1099  #endif  #endif

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