/[pcre]/code/trunk/pcre_internal.h
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revision 1248 by ph10, Wed Feb 13 17:36:38 2013 UTC revision 1380 by ph10, Tue Oct 15 16:49:12 2013 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) 1997-2012 University of Cambridge             Copyright (c) 1997-2013 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 194  preprocessor time in standard C environm Line 194  preprocessor time in standard C environm
194  typedef unsigned char pcre_uint8;  typedef unsigned char pcre_uint8;
195    
196  #if USHRT_MAX == 65535  #if USHRT_MAX == 65535
197    typedef unsigned short pcre_uint16;  typedef unsigned short pcre_uint16;
198    typedef short pcre_int16;  typedef short pcre_int16;
199    #define PCRE_UINT16_MAX USHRT_MAX
200    #define PCRE_INT16_MAX SHRT_MAX
201  #elif UINT_MAX == 65535  #elif UINT_MAX == 65535
202    typedef unsigned int pcre_uint16;  typedef unsigned int pcre_uint16;
203    typedef int pcre_int16;  typedef int pcre_int16;
204    #define PCRE_UINT16_MAX UINT_MAX
205    #define PCRE_INT16_MAX INT_MAX
206  #else  #else
207  # error Cannot determine a type for 16-bit unsigned integers  #error Cannot determine a type for 16-bit integers
208  #endif  #endif
209    
210  #if UINT_MAX == 4294967295  #if UINT_MAX == 4294967295U
211    typedef unsigned int pcre_uint32;  typedef unsigned int pcre_uint32;
212    typedef int pcre_int32;  typedef int pcre_int32;
213  #elif ULONG_MAX == 4294967295  #define PCRE_UINT32_MAX UINT_MAX
214    typedef unsigned long int pcre_uint32;  #define PCRE_INT32_MAX INT_MAX
215    typedef long int pcre_int32;  #elif ULONG_MAX == 4294967295UL
216    typedef unsigned long int pcre_uint32;
217    typedef long int pcre_int32;
218    #define PCRE_UINT32_MAX ULONG_MAX
219    #define PCRE_INT32_MAX LONG_MAX
220  #else  #else
221  # error Cannot determine a type for 32-bit unsigned integers  #error Cannot determine a type for 32-bit integers
222  #endif  #endif
223    
224  /* When checking for integer overflow in pcre_compile(), we need to handle  /* When checking for integer overflow in pcre_compile(), we need to handle
# Line 1121  other. NOTE: The values also appear in p Line 1129  other. NOTE: The values also appear in p
1129    
1130    
1131  /* Private flags containing information about the compiled regex. They used to  /* Private flags containing information about the compiled regex. They used to
1132  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 they were
1133  are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as  moved to a 16-bit flags word - which got almost full, so now they are in a
1134  the restrictions on partial matching have been lifted. It remains for backwards  32-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as the
1135    restrictions on partial matching have been lifted. It remains for backwards
1136  compatibility. */  compatibility. */
1137    
1138  #define PCRE_MODE8         0x0001  /* compiled in 8 bit mode */  #define PCRE_MODE8         0x00000001  /* compiled in 8 bit mode */
1139  #define PCRE_MODE16        0x0002  /* compiled in 16 bit mode */  #define PCRE_MODE16        0x00000002  /* compiled in 16 bit mode */
1140  #define PCRE_MODE32        0x0004  /* compiled in 32 bit mode */  #define PCRE_MODE32        0x00000004  /* compiled in 32 bit mode */
1141  #define PCRE_FIRSTSET      0x0010  /* first_char is set */  #define PCRE_FIRSTSET      0x00000010  /* first_char is set */
1142  #define PCRE_FCH_CASELESS  0x0020  /* caseless first char */  #define PCRE_FCH_CASELESS  0x00000020  /* caseless first char */
1143  #define PCRE_REQCHSET      0x0040  /* req_byte is set */  #define PCRE_REQCHSET      0x00000040  /* req_byte is set */
1144  #define PCRE_RCH_CASELESS  0x0080  /* caseless requested char */  #define PCRE_RCH_CASELESS  0x00000080  /* caseless requested char */
1145  #define PCRE_STARTLINE     0x0100  /* start after \n for multiline */  #define PCRE_STARTLINE     0x00000100  /* start after \n for multiline */
1146  #define PCRE_NOPARTIAL     0x0200  /* can't use partial with this regex */  #define PCRE_NOPARTIAL     0x00000200  /* can't use partial with this regex */
1147  #define PCRE_JCHANGED      0x0400  /* j option used in regex */  #define PCRE_JCHANGED      0x00000400  /* j option used in regex */
1148  #define PCRE_HASCRORLF     0x0800  /* explicit \r or \n in pattern */  #define PCRE_HASCRORLF     0x00000800  /* explicit \r or \n in pattern */
1149  #define PCRE_HASTHEN       0x1000  /* pattern contains (*THEN) */  #define PCRE_HASTHEN       0x00001000  /* pattern contains (*THEN) */
1150    #define PCRE_MLSET         0x00002000  /* match limit set by regex */
1151    #define PCRE_RLSET         0x00004000  /* recursion limit set by regex */
1152    #define PCRE_MATCH_EMPTY   0x00008000  /* pattern can match empty string */
1153    
1154  #if defined COMPILE_PCRE8  #if defined COMPILE_PCRE8
1155  #define PCRE_MODE          PCRE_MODE8  #define PCRE_MODE          PCRE_MODE8
# Line 1162  time, run time, or study time, respectiv Line 1174  time, run time, or study time, respectiv
1174  #define PUBLIC_COMPILE_OPTIONS \  #define PUBLIC_COMPILE_OPTIONS \
1175    (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \    (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
1176     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
1177     PCRE_NO_AUTO_CAPTURE|PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \     PCRE_NO_AUTO_CAPTURE|PCRE_NO_AUTO_POSSESSIFY| \
1178       PCRE_NO_UTF8_CHECK|PCRE_AUTO_CALLOUT|PCRE_FIRSTLINE| \
1179     PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \     PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
1180     PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE)     PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE|PCRE_NEVER_UTF)
1181    
1182  #define PUBLIC_EXEC_OPTIONS \  #define PUBLIC_EXEC_OPTIONS \
1183    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
# Line 1534  a positive value. */ Line 1547  a positive value. */
1547  #define STRING_UTF_RIGHTPAR            "UTF)"  #define STRING_UTF_RIGHTPAR            "UTF)"
1548  #define STRING_UCP_RIGHTPAR            "UCP)"  #define STRING_UCP_RIGHTPAR            "UCP)"
1549  #define STRING_NO_START_OPT_RIGHTPAR   "NO_START_OPT)"  #define STRING_NO_START_OPT_RIGHTPAR   "NO_START_OPT)"
1550    #define STRING_LIMIT_MATCH_EQ          "LIMIT_MATCH="
1551    #define STRING_LIMIT_RECURSION_EQ      "LIMIT_RECURSION="
1552    
1553  #else  /* SUPPORT_UTF */  #else  /* SUPPORT_UTF */
1554    
# Line 1795  only. */ Line 1810  only. */
1810  #define STRING_UTF_RIGHTPAR            STR_U STR_T STR_F STR_RIGHT_PARENTHESIS  #define STRING_UTF_RIGHTPAR            STR_U STR_T STR_F STR_RIGHT_PARENTHESIS
1811  #define STRING_UCP_RIGHTPAR            STR_U STR_C STR_P STR_RIGHT_PARENTHESIS  #define STRING_UCP_RIGHTPAR            STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1812  #define STRING_NO_START_OPT_RIGHTPAR   STR_N STR_O STR_UNDERSCORE STR_S STR_T STR_A STR_R STR_T STR_UNDERSCORE STR_O STR_P STR_T STR_RIGHT_PARENTHESIS  #define STRING_NO_START_OPT_RIGHTPAR   STR_N STR_O STR_UNDERSCORE STR_S STR_T STR_A STR_R STR_T STR_UNDERSCORE STR_O STR_P STR_T STR_RIGHT_PARENTHESIS
1813    #define STRING_LIMIT_MATCH_EQ          STR_L STR_I STR_M STR_I STR_T STR_UNDERSCORE STR_M STR_A STR_T STR_C STR_H STR_EQUALS_SIGN
1814    #define STRING_LIMIT_RECURSION_EQ      STR_L STR_I STR_M STR_I STR_T STR_UNDERSCORE STR_R STR_E STR_C STR_U STR_R STR_S STR_I STR_O STR_N STR_EQUALS_SIGN
1815    
1816  #endif  /* SUPPORT_UTF */  #endif  /* SUPPORT_UTF */
1817    
# Line 1835  only. */ Line 1852  only. */
1852  #define PT_PXSPACE    7    /* POSIX space - Z plus 9,10,11,12,13 */  #define PT_PXSPACE    7    /* POSIX space - Z plus 9,10,11,12,13 */
1853  #define PT_WORD       8    /* Word - L plus N plus underscore */  #define PT_WORD       8    /* Word - L plus N plus underscore */
1854  #define PT_CLIST      9    /* Pseudo-property: match character list */  #define PT_CLIST      9    /* Pseudo-property: match character list */
1855    #define PT_UCNC      10    /* Universal Character nameable character */
1856    #define PT_TABSIZE   11    /* Size of square table for autopossessify tests */
1857    
1858  /* 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
1859  contain characters with values greater than 255. */  contain characters with values greater than 255. */
# Line 1874  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, E Line 1893  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, E
1893         ESC_E, ESC_Q, ESC_g, ESC_k,         ESC_E, ESC_Q, ESC_g, ESC_k,
1894         ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu };         ESC_DU, ESC_du, ESC_SU, ESC_su, ESC_WU, ESC_wu };
1895    
 /* Opcode table: Starting from 1 (i.e. after OP_END), the values up to  
 OP_EOD must correspond in order to the list of escapes immediately above.  
1896    
1897  *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions  /********************** Opcode definitions ******************/
1898  that follow must also be updated to match. There are also tables called  
1899  "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */  /****** NOTE NOTE NOTE ******
1900    
1901    Starting from 1 (i.e. after OP_END), the values up to OP_EOD must correspond in
1902    order to the list of escapes immediately above. Furthermore, values up to
1903    OP_DOLLM must not be changed without adjusting the table called autoposstab in
1904    pcre_compile.c
1905    
1906    Whenever this list is updated, the two macro definitions that follow must be
1907    updated to match. The possessification table called "opcode_possessify" in
1908    pcre_compile.c must also be updated, and also the tables called "coptable"
1909    and "poptable" in pcre_dfa_exec.c.
1910    
1911    ****** NOTE NOTE NOTE ******/
1912    
1913    
1914    /* The values between FIRST_AUTOTAB_OP and LAST_AUTOTAB_RIGHT_OP, inclusive,
1915    are used in a table for deciding whether a repeated character type can be
1916    auto-possessified. */
1917    
1918    #define FIRST_AUTOTAB_OP       OP_NOT_DIGIT
1919    #define LAST_AUTOTAB_LEFT_OP   OP_EXTUNI
1920    #define LAST_AUTOTAB_RIGHT_OP  OP_DOLLM
1921    
1922  enum {  enum {
1923    OP_END,            /* 0 End of pattern */    OP_END,            /* 0 End of pattern */
# Line 1911  enum { Line 1949  enum {
1949    OP_EXTUNI,         /* 22 \X (extended Unicode sequence */    OP_EXTUNI,         /* 22 \X (extended Unicode sequence */
1950    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) */
1951    OP_EOD,            /* 24 End of data (\z) */    OP_EOD,            /* 24 End of data (\z) */
1952    
1953      /* Line end assertions */
1954    
1955    OP_CIRC,           /* 25 Start of line - not multiline */    OP_DOLL,           /* 25 End of line - not multiline */
1956    OP_CIRCM,          /* 26 Start of line - multiline */    OP_DOLLM,          /* 26 End of line - multiline */
1957    OP_DOLL,           /* 27 End of line - not multiline */    OP_CIRC,           /* 27 Start of line - not multiline */
1958    OP_DOLLM,          /* 28 End of line - multiline */    OP_CIRCM,          /* 28 Start of line - multiline */
1959    
1960      /* Single characters; caseful must precede the caseless ones */
1961    
1962    OP_CHAR,           /* 29 Match one character, casefully */    OP_CHAR,           /* 29 Match one character, casefully */
1963    OP_CHARI,          /* 30 Match one character, caselessly */    OP_CHARI,          /* 30 Match one character, caselessly */
1964    OP_NOT,            /* 31 Match one character, not the given one, casefully */    OP_NOT,            /* 31 Match one character, not the given one, casefully */
# Line 1924  enum { Line 1967  enum {
1967    /* The following sets of 13 opcodes must always be kept in step because    /* The following sets of 13 opcodes must always be kept in step because
1968    the offset from the first one is used to generate the others. */    the offset from the first one is used to generate the others. */
1969    
1970    /**** Single characters, caseful, must precede the caseless ones ****/    /* Repeated characters; caseful must precede the caseless ones */
1971    
1972    OP_STAR,           /* 33 The maximizing and minimizing versions of */    OP_STAR,           /* 33 The maximizing and minimizing versions of */
1973    OP_MINSTAR,        /* 34 these six opcodes must come in pairs, with */    OP_MINSTAR,        /* 34 these six opcodes must come in pairs, with */
# Line 1942  enum { Line 1985  enum {
1985    OP_POSQUERY,       /* 44 Posesssified query, caseful */    OP_POSQUERY,       /* 44 Posesssified query, caseful */
1986    OP_POSUPTO,        /* 45 Possessified upto, caseful */    OP_POSUPTO,        /* 45 Possessified upto, caseful */
1987    
1988    /**** Single characters, caseless, must follow the caseful ones */    /* Repeated characters; caseless must follow the caseful ones */
1989    
1990    OP_STARI,          /* 46 */    OP_STARI,          /* 46 */
1991    OP_MINSTARI,       /* 47 */    OP_MINSTARI,       /* 47 */
# Line 1960  enum { Line 2003  enum {
2003    OP_POSQUERYI,      /* 57 Posesssified query, caseless */    OP_POSQUERYI,      /* 57 Posesssified query, caseless */
2004    OP_POSUPTOI,       /* 58 Possessified upto, caseless */    OP_POSUPTOI,       /* 58 Possessified upto, caseless */
2005    
2006    /**** The negated ones must follow the non-negated ones, and match them ****/    /* The negated ones must follow the non-negated ones, and match them */
2007    /**** Negated single character, caseful; must precede the caseless ones ****/    /* Negated repeated character, caseful; must precede the caseless ones */
2008    
2009    OP_NOTSTAR,        /* 59 The maximizing and minimizing versions of */    OP_NOTSTAR,        /* 59 The maximizing and minimizing versions of */
2010    OP_NOTMINSTAR,     /* 60 these six opcodes must come in pairs, with */    OP_NOTMINSTAR,     /* 60 these six opcodes must come in pairs, with */
# Line 1979  enum { Line 2022  enum {
2022    OP_NOTPOSQUERY,    /* 70 */    OP_NOTPOSQUERY,    /* 70 */
2023    OP_NOTPOSUPTO,     /* 71 */    OP_NOTPOSUPTO,     /* 71 */
2024    
2025    /**** Negated single character, caseless; must follow the caseful ones ****/    /* Negated repeated character, caseless; must follow the caseful ones */
2026    
2027    OP_NOTSTARI,       /* 72 */    OP_NOTSTARI,       /* 72 */
2028    OP_NOTMINSTARI,    /* 73 */    OP_NOTMINSTARI,    /* 73 */
# Line 1997  enum { Line 2040  enum {
2040    OP_NOTPOSQUERYI,   /* 83 */    OP_NOTPOSQUERYI,   /* 83 */
2041    OP_NOTPOSUPTOI,    /* 84 */    OP_NOTPOSUPTOI,    /* 84 */
2042    
2043    /**** Character types ****/    /* Character types */
2044    
2045    OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */    OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */
2046    OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */    OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */
# Line 2028  enum { Line 2071  enum {
2071    OP_CRRANGE,        /* 104 These are different to the three sets above. */    OP_CRRANGE,        /* 104 These are different to the three sets above. */
2072    OP_CRMINRANGE,     /* 105 */    OP_CRMINRANGE,     /* 105 */
2073    
2074      OP_CRPOSSTAR,      /* 106 Possessified versions */
2075      OP_CRPOSPLUS,      /* 107 */
2076      OP_CRPOSQUERY,     /* 108 */
2077      OP_CRPOSRANGE,     /* 109 */
2078    
2079    /* End of quantifier opcodes */    /* End of quantifier opcodes */
2080    
2081    OP_CLASS,          /* 106 Match a character class, chars < 256 only */    OP_CLASS,          /* 110 Match a character class, chars < 256 only */
2082    OP_NCLASS,         /* 107 Same, but the bitmap was created from a negative    OP_NCLASS,         /* 111 Same, but the bitmap was created from a negative
2083                                class - the difference is relevant only when a                                class - the difference is relevant only when a
2084                                character > 255 is encountered. */                                character > 255 is encountered. */
2085    OP_XCLASS,         /* 108 Extended class for handling > 255 chars within the    OP_XCLASS,         /* 112 Extended class for handling > 255 chars within the
2086                                class. This does both positive and negative. */                                class. This does both positive and negative. */
2087    OP_REF,            /* 109 Match a back reference, casefully */    OP_REF,            /* 113 Match a back reference, casefully */
2088    OP_REFI,           /* 110 Match a back reference, caselessly */    OP_REFI,           /* 114 Match a back reference, caselessly */
2089    OP_RECURSE,        /* 111 Match a numbered subpattern (possibly recursive) */    OP_DNREF,          /* 115 Match a duplicate name backref, casefully */
2090    OP_CALLOUT,        /* 112 Call out to external function if provided */    OP_DNREFI,         /* 116 Match a duplicate name backref, caselessly */
2091      OP_RECURSE,        /* 117 Match a numbered subpattern (possibly recursive) */
2092    OP_ALT,            /* 113 Start of alternation */    OP_CALLOUT,        /* 118 Call out to external function if provided */
2093    OP_KET,            /* 114 End of group that doesn't have an unbounded repeat */  
2094    OP_KETRMAX,        /* 115 These two must remain together and in this */    OP_ALT,            /* 119 Start of alternation */
2095    OP_KETRMIN,        /* 116 order. They are for groups the repeat for ever. */    OP_KET,            /* 120 End of group that doesn't have an unbounded repeat */
2096    OP_KETRPOS,        /* 117 Possessive unlimited repeat. */    OP_KETRMAX,        /* 121 These two must remain together and in this */
2097      OP_KETRMIN,        /* 122 order. They are for groups the repeat for ever. */
2098      OP_KETRPOS,        /* 123 Possessive unlimited repeat. */
2099    
2100    /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four    /* The assertions must come before BRA, CBRA, ONCE, and COND, and the four
2101    asserts must remain in order. */    asserts must remain in order. */
2102    
2103    OP_REVERSE,        /* 118 Move pointer back - used in lookbehind assertions */    OP_REVERSE,        /* 124 Move pointer back - used in lookbehind assertions */
2104    OP_ASSERT,         /* 119 Positive lookahead */    OP_ASSERT,         /* 125 Positive lookahead */
2105    OP_ASSERT_NOT,     /* 120 Negative lookahead */    OP_ASSERT_NOT,     /* 126 Negative lookahead */
2106    OP_ASSERTBACK,     /* 121 Positive lookbehind */    OP_ASSERTBACK,     /* 127 Positive lookbehind */
2107    OP_ASSERTBACK_NOT, /* 122 Negative lookbehind */    OP_ASSERTBACK_NOT, /* 128 Negative lookbehind */
2108    
2109    /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately    /* ONCE, ONCE_NC, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come immediately
2110    after the assertions, with ONCE first, as there's a test for >= ONCE for a    after the assertions, with ONCE first, as there's a test for >= ONCE for a
2111    subpattern that isn't an assertion. The POS versions must immediately follow    subpattern that isn't an assertion. The POS versions must immediately follow
2112    the non-POS versions in each case. */    the non-POS versions in each case. */
2113    
2114    OP_ONCE,           /* 123 Atomic group, contains captures */    OP_ONCE,           /* 129 Atomic group, contains captures */
2115    OP_ONCE_NC,        /* 124 Atomic group containing no captures */    OP_ONCE_NC,        /* 130 Atomic group containing no captures */
2116    OP_BRA,            /* 125 Start of non-capturing bracket */    OP_BRA,            /* 131 Start of non-capturing bracket */
2117    OP_BRAPOS,         /* 126 Ditto, with unlimited, possessive repeat */    OP_BRAPOS,         /* 132 Ditto, with unlimited, possessive repeat */
2118    OP_CBRA,           /* 127 Start of capturing bracket */    OP_CBRA,           /* 133 Start of capturing bracket */
2119    OP_CBRAPOS,        /* 128 Ditto, with unlimited, possessive repeat */    OP_CBRAPOS,        /* 134 Ditto, with unlimited, possessive repeat */
2120    OP_COND,           /* 129 Conditional group */    OP_COND,           /* 135 Conditional group */
2121    
2122    /* These five must follow the previous five, in the same order. There's a    /* These five must follow the previous five, in the same order. There's a
2123    check for >= SBRA to distinguish the two sets. */    check for >= SBRA to distinguish the two sets. */
2124    
2125    OP_SBRA,           /* 130 Start of non-capturing bracket, check empty  */    OP_SBRA,           /* 136 Start of non-capturing bracket, check empty  */
2126    OP_SBRAPOS,        /* 131 Ditto, with unlimited, possessive repeat */    OP_SBRAPOS,        /* 137 Ditto, with unlimited, possessive repeat */
2127    OP_SCBRA,          /* 132 Start of capturing bracket, check empty */    OP_SCBRA,          /* 138 Start of capturing bracket, check empty */
2128    OP_SCBRAPOS,       /* 133 Ditto, with unlimited, possessive repeat */    OP_SCBRAPOS,       /* 139 Ditto, with unlimited, possessive repeat */
2129    OP_SCOND,          /* 134 Conditional group, check empty */    OP_SCOND,          /* 140 Conditional group, check empty */
2130    
2131    /* The next two pairs must (respectively) be kept together. */    /* The next two pairs must (respectively) be kept together. */
2132    
2133    OP_CREF,           /* 135 Used to hold a capture number as condition */    OP_CREF,           /* 141 Used to hold a capture number as condition */
2134    OP_NCREF,          /* 136 Same, but generated by a name reference*/    OP_DNCREF,         /* 142 Used to point to duplicate names as a condition */
2135    OP_RREF,           /* 137 Used to hold a recursion number as condition */    OP_RREF,           /* 143 Used to hold a recursion number as condition */
2136    OP_NRREF,          /* 138 Same, but generated by a name reference*/    OP_DNRREF,         /* 144 Used to point to duplicate names as a condition */
2137    OP_DEF,            /* 139 The DEFINE condition */    OP_DEF,            /* 145 The DEFINE condition */
2138    
2139    OP_BRAZERO,        /* 140 These two must remain together and in this */    OP_BRAZERO,        /* 146 These two must remain together and in this */
2140    OP_BRAMINZERO,     /* 141 order. */    OP_BRAMINZERO,     /* 147 order. */
2141    OP_BRAPOSZERO,     /* 142 */    OP_BRAPOSZERO,     /* 148 */
2142    
2143    /* These are backtracking control verbs */    /* These are backtracking control verbs */
2144    
2145    OP_MARK,           /* 143 always has an argument */    OP_MARK,           /* 149 always has an argument */
2146    OP_PRUNE,          /* 144 */    OP_PRUNE,          /* 150 */
2147    OP_PRUNE_ARG,      /* 145 same, but with argument */    OP_PRUNE_ARG,      /* 151 same, but with argument */
2148    OP_SKIP,           /* 146 */    OP_SKIP,           /* 152 */
2149    OP_SKIP_ARG,       /* 147 same, but with argument */    OP_SKIP_ARG,       /* 153 same, but with argument */
2150    OP_THEN,           /* 148 */    OP_THEN,           /* 154 */
2151    OP_THEN_ARG,       /* 149 same, but with argument */    OP_THEN_ARG,       /* 155 same, but with argument */
2152    OP_COMMIT,         /* 150 */    OP_COMMIT,         /* 156 */
2153    
2154    /* These are forced failure and success verbs */    /* These are forced failure and success verbs */
2155    
2156    OP_FAIL,           /* 151 */    OP_FAIL,           /* 157 */
2157    OP_ACCEPT,         /* 152 */    OP_ACCEPT,         /* 158 */
2158    OP_ASSERT_ACCEPT,  /* 153 Used inside assertions */    OP_ASSERT_ACCEPT,  /* 159 Used inside assertions */
2159    OP_CLOSE,          /* 154 Used before OP_ACCEPT to close open captures */    OP_CLOSE,          /* 160 Used before OP_ACCEPT to close open captures */
2160    
2161    /* This is used to skip a subpattern with a {0} quantifier */    /* This is used to skip a subpattern with a {0} quantifier */
2162    
2163    OP_SKIPZERO,       /* 155 */    OP_SKIPZERO,       /* 161 */
2164    
2165    /* This is not an opcode, but is used to check that tables indexed by opcode    /* This is not an opcode, but is used to check that tables indexed by opcode
2166    are the correct length, in order to catch updating errors - there have been    are the correct length, in order to catch updating errors - there have been
# Line 2121  enum { Line 2171  enum {
2171    
2172  /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro  /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
2173  definitions that follow must also be updated to match. There are also tables  definitions that follow must also be updated to match. There are also tables
2174  called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */  called "opcode_possessify" in pcre_compile.c and "coptable" and "poptable" in
2175    pcre_dfa_exec.c that must be updated. */
2176    
2177    
2178  /* 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 2134  some cases doesn't actually use these na Line 2185  some cases doesn't actually use these na
2185    "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \    "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \
2186    "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \    "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \
2187    "extuni",  "\\Z", "\\z",                                        \    "extuni",  "\\Z", "\\z",                                        \
2188    "^", "^", "$", "$", "char", "chari", "not", "noti",             \    "$", "$", "^", "^", "char", "chari", "not", "noti",             \
2189    "*", "*?", "+", "+?", "?", "??",                                \    "*", "*?", "+", "+?", "?", "??",                                \
2190    "{", "{", "{",                                                  \    "{", "{", "{",                                                  \
2191    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
# Line 2150  some cases doesn't actually use these na Line 2201  some cases doesn't actually use these na
2201    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
2202    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
2203    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \
2204    "class", "nclass", "xclass", "Ref", "Refi",                     \    "*+","++", "?+", "{",                                           \
2205      "class", "nclass", "xclass", "Ref", "Refi", "DnRef", "DnRefi",  \
2206    "Recurse", "Callout",                                           \    "Recurse", "Callout",                                           \
2207    "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos",                  \    "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos",                  \
2208    "Reverse", "Assert", "Assert not", "AssertB", "AssertB not",    \    "Reverse", "Assert", "Assert not", "AssertB", "AssertB not",    \
# Line 2159  some cases doesn't actually use these na Line 2211  some cases doesn't actually use these na
2211    "Cond",                                                         \    "Cond",                                                         \
2212    "SBra", "SBraPos", "SCBra", "SCBraPos",                         \    "SBra", "SBraPos", "SCBra", "SCBraPos",                         \
2213    "SCond",                                                        \    "SCond",                                                        \
2214    "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def",   \    "Cond ref", "Cond dnref", "Cond rec", "Cond dnrec", "Cond def", \
2215    "Brazero", "Braminzero", "Braposzero",                          \    "Brazero", "Braminzero", "Braposzero",                          \
2216    "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \    "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \
2217    "*THEN", "*THEN", "*COMMIT", "*FAIL",                           \    "*THEN", "*THEN", "*COMMIT", "*FAIL",                           \
# Line 2184  in UTF-8 mode. The code that uses this t Line 2236  in UTF-8 mode. The code that uses this t
2236    3, 3,                          /* \P, \p                                 */ \    3, 3,                          /* \P, \p                                 */ \
2237    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
2238    1,                             /* \X                                     */ \    1,                             /* \X                                     */ \
2239    1, 1, 1, 1, 1, 1,              /* \Z, \z, ^, ^M, $, $M                   */ \    1, 1, 1, 1, 1, 1,              /* \Z, \z, $, $M ^, ^M                    */ \
2240    2,                             /* Char  - the minimum length             */ \    2,                             /* Char  - the minimum length             */ \
2241    2,                             /* Chari  - the minimum length            */ \    2,                             /* Chari  - the minimum length            */ \
2242    2,                             /* not                                    */ \    2,                             /* not                                    */ \
# Line 2215  in UTF-8 mode. The code that uses this t Line 2267  in UTF-8 mode. The code that uses this t
2267    /* Character class & ref repeats                                         */ \    /* Character class & ref repeats                                         */ \
2268    1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \    1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */ \
2269    1+2*IMM2_SIZE, 1+2*IMM2_SIZE,  /* CRRANGE, CRMINRANGE                    */ \    1+2*IMM2_SIZE, 1+2*IMM2_SIZE,  /* CRRANGE, CRMINRANGE                    */ \
2270      1, 1, 1, 1+2*IMM2_SIZE,        /* Possessive *+, ++, ?+, CRPOSRANGE      */ \
2271    1+(32/sizeof(pcre_uchar)),     /* CLASS                                  */ \    1+(32/sizeof(pcre_uchar)),     /* CLASS                                  */ \
2272    1+(32/sizeof(pcre_uchar)),     /* NCLASS                                 */ \    1+(32/sizeof(pcre_uchar)),     /* NCLASS                                 */ \
2273    0,                             /* XCLASS - variable length               */ \    0,                             /* XCLASS - variable length               */ \
2274    1+IMM2_SIZE,                   /* REF                                    */ \    1+IMM2_SIZE,                   /* REF                                    */ \
2275    1+IMM2_SIZE,                   /* REFI                                   */ \    1+IMM2_SIZE,                   /* REFI                                   */ \
2276      1+2*IMM2_SIZE,                 /* DNREF                                  */ \
2277      1+2*IMM2_SIZE,                 /* DNREFI                                 */ \
2278    1+LINK_SIZE,                   /* RECURSE                                */ \    1+LINK_SIZE,                   /* RECURSE                                */ \
2279    2+2*LINK_SIZE,                 /* CALLOUT                                */ \    2+2*LINK_SIZE,                 /* CALLOUT                                */ \
2280    1+LINK_SIZE,                   /* Alt                                    */ \    1+LINK_SIZE,                   /* Alt                                    */ \
# Line 2244  in UTF-8 mode. The code that uses this t Line 2299  in UTF-8 mode. The code that uses this t
2299    1+LINK_SIZE+IMM2_SIZE,         /* SCBRA                                  */ \    1+LINK_SIZE+IMM2_SIZE,         /* SCBRA                                  */ \
2300    1+LINK_SIZE+IMM2_SIZE,         /* SCBRAPOS                               */ \    1+LINK_SIZE+IMM2_SIZE,         /* SCBRAPOS                               */ \
2301    1+LINK_SIZE,                   /* SCOND                                  */ \    1+LINK_SIZE,                   /* SCOND                                  */ \
2302    1+IMM2_SIZE, 1+IMM2_SIZE,      /* CREF, NCREF                            */ \    1+IMM2_SIZE, 1+2*IMM2_SIZE,    /* CREF, DNCREF                           */ \
2303    1+IMM2_SIZE, 1+IMM2_SIZE,      /* RREF, NRREF                            */ \    1+IMM2_SIZE, 1+2*IMM2_SIZE,    /* RREF, DNRREF                           */ \
2304    1,                             /* DEF                                    */ \    1,                             /* DEF                                    */ \
2305    1, 1, 1,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */ \    1, 1, 1,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */ \
2306    3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \    3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \
# Line 2254  in UTF-8 mode. The code that uses this t Line 2309  in UTF-8 mode. The code that uses this t
2309    1, 1, 1, 1,                    /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT    */ \    1, 1, 1, 1,                    /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT    */ \
2310    1+IMM2_SIZE, 1                 /* CLOSE, SKIPZERO                        */    1+IMM2_SIZE, 1                 /* CLOSE, SKIPZERO                        */
2311    
2312  /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"  /* A magic value for OP_RREF to indicate the "any recursion" condition. */
 condition. */  
2313    
2314  #define RREF_ANY  0xffff  #define RREF_ANY  0xffff
2315    
# Line 2270  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4, Line 2324  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,
2324         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
2325         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
2326         ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,         ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68, ERR69,
2327         ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERRCOUNT };         ERR70, ERR71, ERR72, ERR73, ERR74, ERR75, ERR76, ERR77, ERR78, ERR79,
2328           ERR80, ERR81, ERRCOUNT };
2329    
2330  /* JIT compiling modes. The function list is indexed by them. */  /* JIT compiling modes. The function list is indexed by them. */
2331  enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,  enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COMPILE, JIT_PARTIAL_HARD_COMPILE,
# Line 2280  enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COM Line 2335  enum { JIT_COMPILE, JIT_PARTIAL_SOFT_COM
2335  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
2336  offset to the name table so that if a regex is compiled on one host, saved, and  offset to the name table so that if a regex is compiled on one host, saved, and
2337  then run on another where the size of pointers is different, all might still  then run on another where the size of pointers is different, all might still
2338  be well. For the case of compiled-on-4 and run-on-8, we include an extra  be well.
 pointer that is always NULL. For future-proofing, a few dummy fields were  
 originally included - even though you can never get this planning right - but  
 there is only one left now.  
   
 NOTE NOTE NOTE:  
 Because people can now save and re-use compiled patterns, any additions to this  
 structure should be made at the end, and something earlier (e.g. a new  
 flag in the options or one of the dummy fields) should indicate that the new  
 fields are present. Currently PCRE always sets the dummy fields to zero.  
 NOTE NOTE NOTE  
 */  
2339    
2340  #if defined COMPILE_PCRE8  The size of the structure must be a multiple of 8 bytes. For the case of
2341  #define REAL_PCRE real_pcre  compiled-on-4 and run-on-8, we include an extra pointer that is always NULL so
2342  #elif defined COMPILE_PCRE16  that there are an even number of pointers which therefore are a multiple of 8
2343  #define REAL_PCRE real_pcre16  bytes.
2344  #elif defined COMPILE_PCRE32  
2345  #define REAL_PCRE real_pcre32  It is necessary to fork the struct for the 32 bit library, since it needs to
2346  #endif  use pcre_uint32 for first_char and req_char. We can't put an ifdef inside the
2347    typedef because pcretest needs access to the struct of the 8-, 16- and 32-bit
2348  /* It is necessary to fork the struct for 32 bit, since it needs to use  variants.
2349   * pcre_uchar for first_char and req_char. Can't put an ifdef inside the  
2350   * typedef since pcretest needs access to  the struct of the 8-, 16-  *** WARNING ***
2351   * and 32-bit variants. */  When new fields are added to these structures, remember to adjust the code in
2352    pcre_byte_order.c that is concerned with swapping the byte order of the fields
2353    when a compiled regex is reloaded on a host with different endianness.
2354    *** WARNING ***
2355    There is also similar byte-flipping code in pcretest.c, which is used for
2356    testing the byte-flipping features. It must also be kept in step.
2357    *** WARNING ***
2358    */
2359    
2360  typedef struct real_pcre8_or_16 {  typedef struct real_pcre8_or_16 {
2361    pcre_uint32 magic_number;    pcre_uint32 magic_number;
2362    pcre_uint32 size;               /* Total that was malloced */    pcre_uint32 size;               /* Total that was malloced */
2363    pcre_uint32 options;            /* Public options */    pcre_uint32 options;            /* Public options */
2364    pcre_uint16 flags;              /* Private flags */    pcre_uint32 flags;              /* Private flags */
2365      pcre_uint32 limit_match;        /* Limit set from regex */
2366      pcre_uint32 limit_recursion;    /* Limit set from regex */
2367      pcre_uint16 first_char;         /* Starting character */
2368      pcre_uint16 req_char;           /* This character must be seen */
2369    pcre_uint16 max_lookbehind;     /* Longest lookbehind (characters) */    pcre_uint16 max_lookbehind;     /* Longest lookbehind (characters) */
2370    pcre_uint16 top_bracket;        /* Highest numbered group */    pcre_uint16 top_bracket;        /* Highest numbered group */
2371    pcre_uint16 top_backref;        /* Highest numbered back reference */    pcre_uint16 top_backref;        /* Highest numbered back reference */
   pcre_uint16 first_char;         /* Starting character */  
   pcre_uint16 req_char;           /* This character must be seen */  
2372    pcre_uint16 name_table_offset;  /* Offset to name table that follows */    pcre_uint16 name_table_offset;  /* Offset to name table that follows */
2373    pcre_uint16 name_entry_size;    /* Size of any name items */    pcre_uint16 name_entry_size;    /* Size of any name items */
2374    pcre_uint16 name_count;         /* Number of name items */    pcre_uint16 name_count;         /* Number of name items */
2375    pcre_uint16 ref_count;          /* Reference count */    pcre_uint16 ref_count;          /* Reference count */
2376      pcre_uint16 dummy1;             /* To ensure size is a multiple of 8 */
2377      pcre_uint16 dummy2;             /* To ensure size is a multiple of 8 */
2378      pcre_uint16 dummy3;             /* To ensure size is a multiple of 8 */
2379    const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */    const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */
2380    const pcre_uint8 *nullpad;      /* NULL padding */    void             *nullpad;      /* NULL padding */
2381  } real_pcre8_or_16;  } real_pcre8_or_16;
2382    
2383  typedef struct real_pcre8_or_16 real_pcre;  typedef struct real_pcre8_or_16 real_pcre;
# Line 2331  typedef struct real_pcre32 { Line 2387  typedef struct real_pcre32 {
2387    pcre_uint32 magic_number;    pcre_uint32 magic_number;
2388    pcre_uint32 size;               /* Total that was malloced */    pcre_uint32 size;               /* Total that was malloced */
2389    pcre_uint32 options;            /* Public options */    pcre_uint32 options;            /* Public options */
2390    pcre_uint16 flags;              /* Private flags */    pcre_uint32 flags;              /* Private flags */
2391      pcre_uint32 limit_match;        /* Limit set from regex */
2392      pcre_uint32 limit_recursion;    /* Limit set from regex */
2393      pcre_uint32 first_char;         /* Starting character */
2394      pcre_uint32 req_char;           /* This character must be seen */
2395    pcre_uint16 max_lookbehind;     /* Longest lookbehind (characters) */    pcre_uint16 max_lookbehind;     /* Longest lookbehind (characters) */
2396    pcre_uint16 top_bracket;        /* Highest numbered group */    pcre_uint16 top_bracket;        /* Highest numbered group */
2397    pcre_uint16 top_backref;        /* Highest numbered back reference */    pcre_uint16 top_backref;        /* Highest numbered back reference */
   pcre_uint32 first_char;         /* Starting character */  
   pcre_uint32 req_char;           /* This character must be seen */  
2398    pcre_uint16 name_table_offset;  /* Offset to name table that follows */    pcre_uint16 name_table_offset;  /* Offset to name table that follows */
2399    pcre_uint16 name_entry_size;    /* Size of any name items */    pcre_uint16 name_entry_size;    /* Size of any name items */
2400    pcre_uint16 name_count;         /* Number of name items */    pcre_uint16 name_count;         /* Number of name items */
2401    pcre_uint16 ref_count;          /* Reference count */    pcre_uint16 ref_count;          /* Reference count */
2402    pcre_uint16 dummy1;             /* for later expansion */    pcre_uint16 dummy;              /* To ensure size is a multiple of 8 */
   pcre_uint16 dummy2;             /* for later expansion */  
2403    const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */    const pcre_uint8 *tables;       /* Pointer to tables or NULL for std */
2404    void *nullpad;                  /* for later expansion */    void             *nullpad;      /* NULL padding */
2405  } real_pcre32;  } real_pcre32;
2406    
2407    #if defined COMPILE_PCRE8
2408    #define REAL_PCRE real_pcre
2409    #elif defined COMPILE_PCRE16
2410    #define REAL_PCRE real_pcre16
2411    #elif defined COMPILE_PCRE32
2412    #define REAL_PCRE real_pcre32
2413    #endif
2414    
2415  /* Assert that the size of REAL_PCRE is divisible by 8 */  /* Assert that the size of REAL_PCRE is divisible by 8 */
2416  typedef int __assert_real_pcre_size_divisible_8[(sizeof(REAL_PCRE) % 8) == 0 ? 1 : -1];  typedef int __assert_real_pcre_size_divisible_8[(sizeof(REAL_PCRE) % 8) == 0 ? 1 : -1];
2417    
# Line 2380  typedef struct open_capitem { Line 2445  typedef struct open_capitem {
2445    pcre_uint16 flag;             /* Set TRUE if recursive back ref */    pcre_uint16 flag;             /* Set TRUE if recursive back ref */
2446  } open_capitem;  } open_capitem;
2447    
2448    /* Structure for building a list of named groups during the first pass of
2449    compiling. */
2450    
2451    typedef struct named_group {
2452      const pcre_uchar  *name;          /* Points to the name in the pattern */
2453      int                length;        /* Length of the name */
2454      pcre_uint32        number;        /* Group number */
2455    } named_group;
2456    
2457  /* Structure for passing "static" information around between the functions  /* Structure for passing "static" information around between the functions
2458  doing the compiling, so that they are thread-safe. */  doing the compiling, so that they are thread-safe. */
2459    
# Line 2392  typedef struct compile_data { Line 2466  typedef struct compile_data {
2466    const pcre_uchar *start_code;     /* The start of the compiled code */    const pcre_uchar *start_code;     /* The start of the compiled code */
2467    const pcre_uchar *start_pattern;  /* The start of the pattern */    const pcre_uchar *start_pattern;  /* The start of the pattern */
2468    const pcre_uchar *end_pattern;    /* The end of the pattern */    const pcre_uchar *end_pattern;    /* The end of the pattern */
   open_capitem *open_caps;          /* Chain of open capture items */  
2469    pcre_uchar *hwm;                  /* High watermark of workspace */    pcre_uchar *hwm;                  /* High watermark of workspace */
2470      open_capitem *open_caps;          /* Chain of open capture items */
2471      named_group *named_groups;        /* Points to vector in pre-compile */
2472    pcre_uchar *name_table;           /* The name/number table */    pcre_uchar *name_table;           /* The name/number table */
2473    int  names_found;                 /* Number of entries so far */    int  names_found;                 /* Number of entries so far */
2474    int  name_entry_size;             /* Size of each entry */    int  name_entry_size;             /* Size of each entry */
2475      int  named_group_list_size;       /* Number of entries in the list */
2476    int  workspace_size;              /* Size of workspace */    int  workspace_size;              /* Size of workspace */
2477    unsigned int  bracount;           /* Count of capturing parens as we compile */    unsigned int bracount;            /* Count of capturing parens as we compile */
2478    int  final_bracount;              /* Saved value after first pass */    int  final_bracount;              /* Saved value after first pass */
2479    int  max_lookbehind;              /* Maximum lookbehind (characters) */    int  max_lookbehind;              /* Maximum lookbehind (characters) */
2480    int  top_backref;                 /* Maximum back reference */    int  top_backref;                 /* Maximum back reference */
2481    unsigned int backref_map;         /* Bitmap of low back refs */    unsigned int backref_map;         /* Bitmap of low back refs */
2482      unsigned int namedrefcount;       /* Number of backreferences by name */
2483    int  assert_depth;                /* Depth of nested assertions */    int  assert_depth;                /* Depth of nested assertions */
2484    int  external_options;            /* External (initial) options */    pcre_uint32 external_options;     /* External (initial) options */
2485    int  external_flags;              /* External flag bits to be set */    pcre_uint32 external_flags;       /* External flag bits to be set */
2486    int  req_varyopt;                 /* "After variable item" flag for reqbyte */    int  req_varyopt;                 /* "After variable item" flag for reqbyte */
2487    BOOL had_accept;                  /* (*ACCEPT) encountered */    BOOL had_accept;                  /* (*ACCEPT) encountered */
2488    BOOL had_pruneorskip;             /* (*PRUNE) or (*SKIP) encountered */    BOOL had_pruneorskip;             /* (*PRUNE) or (*SKIP) encountered */
2489    BOOL check_lookbehind;            /* Lookbehinds need later checking */    BOOL check_lookbehind;            /* Lookbehinds need later checking */
2490      BOOL dupnames;                    /* Duplicate names exist */
2491    int  nltype;                      /* Newline type */    int  nltype;                      /* Newline type */
2492    int  nllen;                       /* Newline string length */    int  nllen;                       /* Newline string length */
2493    pcre_uchar nl[4];                 /* Newline string when fixed length */    pcre_uchar nl[4];                 /* Newline string when fixed length */
# Line 2431  typedef struct recursion_info { Line 2509  typedef struct recursion_info {
2509    unsigned int group_num;         /* Number of group that was called */    unsigned int group_num;         /* Number of group that was called */
2510    int *offset_save;               /* Pointer to start of saved offsets */    int *offset_save;               /* Pointer to start of saved offsets */
2511    int saved_max;                  /* Number of saved offsets */    int saved_max;                  /* Number of saved offsets */
2512    int saved_capture_last;         /* Last capture number */    int saved_capture_last;         /* Last capture number */
2513    PCRE_PUCHAR subject_position;   /* Position at start of recursion */    PCRE_PUCHAR subject_position;   /* Position at start of recursion */
2514  } recursion_info;  } recursion_info;
2515    
# Line 2468  typedef struct match_data { Line 2546  typedef struct match_data {
2546    int    nllen;                   /* Newline string length */    int    nllen;                   /* Newline string length */
2547    int    name_count;              /* Number of names in name table */    int    name_count;              /* Number of names in name table */
2548    int    name_entry_size;         /* Size of entry in names table */    int    name_entry_size;         /* Size of entry in names table */
2549      unsigned int skip_arg_count;    /* For counting SKIP_ARGs */
2550      unsigned int ignore_skip_arg;   /* For re-run when SKIP arg name not found */
2551    pcre_uchar *name_table;         /* Table of names */    pcre_uchar *name_table;         /* Table of names */
2552    pcre_uchar nl[4];               /* Newline string when fixed */    pcre_uchar nl[4];               /* Newline string when fixed */
2553    const  pcre_uint8 *lcc;         /* Points to lower casing table */    const  pcre_uint8 *lcc;         /* Points to lower casing table */
# Line 2484  typedef struct match_data { Line 2564  typedef struct match_data {
2564    BOOL   hitend;                  /* Hit the end of the subject at some point */    BOOL   hitend;                  /* Hit the end of the subject at some point */
2565    BOOL   bsr_anycrlf;             /* \R is just any CRLF, not full Unicode */    BOOL   bsr_anycrlf;             /* \R is just any CRLF, not full Unicode */
2566    BOOL   hasthen;                 /* Pattern contains (*THEN) */    BOOL   hasthen;                 /* Pattern contains (*THEN) */
   BOOL   ignore_skip_arg;         /* For re-run when SKIP name not found */  
2567    const  pcre_uchar *start_code;  /* For use when recursing */    const  pcre_uchar *start_code;  /* For use when recursing */
2568    PCRE_PUCHAR start_subject;      /* Start of the subject string */    PCRE_PUCHAR start_subject;      /* Start of the subject string */
2569    PCRE_PUCHAR end_subject;        /* End of the subject string */    PCRE_PUCHAR end_subject;        /* End of the subject string */

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