/[pcre]/code/trunk/pcre_internal.h
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revision 376 by ph10, Sun Mar 1 12:00:59 2009 UTC revision 499 by ph10, Wed Mar 3 20:09:39 2010 UTC
# Line 7  Line 7 
7  and semantics are as close as possible to those of the Perl 5 language.  and semantics are as close as possible to those of the Perl 5 language.
8    
9                         Written by Philip Hazel                         Written by Philip Hazel
10             Copyright (c) 1997-2009 University of Cambridge             Copyright (c) 1997-2010 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 45  functions whose names all begin with "_p Line 45  functions whose names all begin with "_p
45  #ifndef PCRE_INTERNAL_H  #ifndef PCRE_INTERNAL_H
46  #define PCRE_INTERNAL_H  #define PCRE_INTERNAL_H
47    
48  /* Define DEBUG to get debugging output on stdout. */  /* Define PCRE_DEBUG to get debugging output on stdout. */
49    
50  #if 0  #if 0
51  #define DEBUG  #define PCRE_DEBUG
52    #endif
53    
54    /* We do not support both EBCDIC and UTF-8 at the same time. The "configure"
55    script prevents both being selected, but not everybody uses "configure". */
56    
57    #if defined EBCDIC && defined SUPPORT_UTF8
58    #error The use of both EBCDIC and SUPPORT_UTF8 is not supported.
59    #endif
60    
61    /* If SUPPORT_UCP is defined, SUPPORT_UTF8 must also be defined. The
62    "configure" script ensures this, but not everybody uses "configure". */
63    
64    #if defined SUPPORT_UCP && !defined SUPPORT_UTF8
65    #define SUPPORT_UTF8 1
66  #endif  #endif
67    
68  /* 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
# Line 60  It turns out that the Mac Debugging.h he Line 74  It turns out that the Mac Debugging.h he
74  be absolutely sure we get our version. */  be absolutely sure we get our version. */
75    
76  #undef DPRINTF  #undef DPRINTF
77  #ifdef DEBUG  #ifdef PCRE_DEBUG
78  #define DPRINTF(p) printf p  #define DPRINTF(p) printf p
79  #else  #else
80  #define DPRINTF(p) /* Nothing */  #define DPRINTF(p) /* Nothing */
# Line 72  setjmp and stdarg are used is when NO_RE Line 86  setjmp and stdarg are used is when NO_RE
86    
87  #include <ctype.h>  #include <ctype.h>
88  #include <limits.h>  #include <limits.h>
 #include <setjmp.h>  
 #include <stdarg.h>  
89  #include <stddef.h>  #include <stddef.h>
90  #include <stdio.h>  #include <stdio.h>
91  #include <stdlib.h>  #include <stdlib.h>
# Line 172  preprocessor time in standard C environm Line 184  preprocessor time in standard C environm
184    #error Cannot determine a type for 32-bit unsigned integers    #error Cannot determine a type for 32-bit unsigned integers
185  #endif  #endif
186    
187    /* When checking for integer overflow in pcre_compile(), we need to handle
188    large integers. If a 64-bit integer type is available, we can use that.
189    Otherwise we have to cast to double, which of course requires floating point
190    arithmetic. Handle this by defining a macro for the appropriate type. If
191    stdint.h is available, include it; it may define INT64_MAX. Systems that do not
192    have stdint.h (e.g. Solaris) may have inttypes.h. The macro int64_t may be set
193    by "configure". */
194    
195    #if HAVE_STDINT_H
196    #include <stdint.h>
197    #elif HAVE_INTTYPES_H
198    #include <inttypes.h>
199    #endif
200    
201    #if defined INT64_MAX || defined int64_t
202    #define INT64_OR_DOUBLE int64_t
203    #else
204    #define INT64_OR_DOUBLE double
205    #endif
206    
207  /* All character handling must be done as unsigned characters. Otherwise there  /* All character handling must be done as unsigned characters. Otherwise there
208  are problems with top-bit-set characters and functions such as isspace().  are problems with top-bit-set characters and functions such as isspace().
209  However, we leave the interface to the outside world as char *, because that  However, we leave the interface to the outside world as char *, because that
# Line 478  if there are extra bytes. This is called Line 510  if there are extra bytes. This is called
510      len += gcaa; \      len += gcaa; \
511      }      }
512    
513    /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
514    pointer, incrementing length if there are extra bytes. This is called when we
515    know we are in UTF-8 mode. */
516    
517    #define GETCHARLENTEST(c, eptr, len) \
518      c = *eptr; \
519      if (utf8 && c >= 0xc0) \
520        { \
521        int gcii; \
522        int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \
523        int gcss = 6*gcaa; \
524        c = (c & _pcre_utf8_table3[gcaa]) << gcss; \
525        for (gcii = 1; gcii <= gcaa; gcii++) \
526          { \
527          gcss -= 6; \
528          c |= (eptr[gcii] & 0x3f) << gcss; \
529          } \
530        len += gcaa; \
531        }
532    
533  /* 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
534  it is. This is called only in UTF-8 mode - we don't put a test within the macro  it is. This is called only in UTF-8 mode - we don't put a test within the macro
535  because almost all calls are already within a block of UTF-8 only code. */  because almost all calls are already within a block of UTF-8 only code. */
# Line 501  Standard C system should have one. */ Line 553  Standard C system should have one. */
553    
554  /* Private flags containing information about the compiled regex. They used to  /* Private flags containing information about the compiled regex. They used to
555  live at the top end of the options word, but that got almost full, so now they  live at the top end of the options word, but that got almost full, so now they
556  are in a 16-bit flags word. */  are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as
557    the restrictions on partial matching have been lifted. It remains for backwards
558    compatibility. */
559    
560  #define PCRE_NOPARTIAL     0x0001  /* can't use partial with this regex */  #define PCRE_NOPARTIAL     0x0001  /* can't use partial with this regex */
561  #define PCRE_FIRSTSET      0x0002  /* first_byte is set */  #define PCRE_FIRSTSET      0x0002  /* first_byte is set */
# Line 513  are in a 16-bit flags word. */ Line 567  are in a 16-bit flags word. */
567  /* Options for the "extra" block produced by pcre_study(). */  /* Options for the "extra" block produced by pcre_study(). */
568    
569  #define PCRE_STUDY_MAPPED   0x01     /* a map of starting chars exists */  #define PCRE_STUDY_MAPPED   0x01     /* a map of starting chars exists */
570    #define PCRE_STUDY_MINLEN   0x02     /* a minimum length field exists */
571    
572  /* Masks for identifying the public options that are permitted at compile  /* Masks for identifying the public options that are permitted at compile
573  time, run time, or study time, respectively. */  time, run time, or study time, respectively. */
# Line 520  time, run time, or study time, respectiv Line 575  time, run time, or study time, respectiv
575  #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| \
576                             PCRE_NEWLINE_ANYCRLF)                             PCRE_NEWLINE_ANYCRLF)
577    
578  #define PUBLIC_OPTIONS \  #define PUBLIC_COMPILE_OPTIONS \
579    (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \    (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
580     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
581     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| \
# Line 528  time, run time, or study time, respectiv Line 583  time, run time, or study time, respectiv
583     PCRE_JAVASCRIPT_COMPAT)     PCRE_JAVASCRIPT_COMPAT)
584    
585  #define PUBLIC_EXEC_OPTIONS \  #define PUBLIC_EXEC_OPTIONS \
586    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NO_UTF8_CHECK| \    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
587     PCRE_PARTIAL|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE)     PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_NEWLINE_BITS| \
588       PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE|PCRE_NO_START_OPTIMIZE)
589    
590  #define PUBLIC_DFA_EXEC_OPTIONS \  #define PUBLIC_DFA_EXEC_OPTIONS \
591    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NO_UTF8_CHECK| \    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
592     PCRE_PARTIAL|PCRE_DFA_SHORTEST|PCRE_DFA_RESTART|PCRE_NEWLINE_BITS| \     PCRE_NO_UTF8_CHECK|PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT|PCRE_DFA_SHORTEST| \
593     PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE)     PCRE_DFA_RESTART|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
594       PCRE_NO_START_OPTIMIZE)
595    
596  #define PUBLIC_STUDY_OPTIONS 0   /* None defined */  #define PUBLIC_STUDY_OPTIONS 0   /* None defined */
597    
# Line 570  typedef int BOOL; Line 627  typedef int BOOL;
627  #define TRUE    1  #define TRUE    1
628  #endif  #endif
629    
630    /* If PCRE is to support UTF-8 on EBCDIC platforms, we cannot use normal
631    character constants like '*' because the compiler would emit their EBCDIC code,
632    which is different from their ASCII/UTF-8 code. Instead we define macros for
633    the characters so that they always use the ASCII/UTF-8 code when UTF-8 support
634    is enabled. When UTF-8 support is not enabled, the definitions use character
635    literals. Both character and string versions of each character are needed, and
636    there are some longer strings as well.
637    
638    This means that, on EBCDIC platforms, the PCRE library can handle either
639    EBCDIC, or UTF-8, but not both. To support both in the same compiled library
640    would need different lookups depending on whether PCRE_UTF8 was set or not.
641    This would make it impossible to use characters in switch/case statements,
642    which would reduce performance. For a theoretical use (which nobody has asked
643    for) in a minority area (EBCDIC platforms), this is not sensible. Any
644    application that did need both could compile two versions of the library, using
645    macros to give the functions distinct names. */
646    
647    #ifndef SUPPORT_UTF8
648    
649    /* UTF-8 support is not enabled; use the platform-dependent character literals
650    so that PCRE works on both ASCII and EBCDIC platforms, in non-UTF-mode only. */
651    
652    #define CHAR_HT                     '\t'
653    #define CHAR_VT                     '\v'
654    #define CHAR_FF                     '\f'
655    #define CHAR_CR                     '\r'
656    #define CHAR_NL                     '\n'
657    #define CHAR_BS                     '\b'
658    #define CHAR_BEL                    '\a'
659    #ifdef EBCDIC
660    #define CHAR_ESC                    '\047'
661    #define CHAR_DEL                    '\007'
662    #else
663    #define CHAR_ESC                    '\033'
664    #define CHAR_DEL                    '\177'
665    #endif
666    
667    #define CHAR_SPACE                  ' '
668    #define CHAR_EXCLAMATION_MARK       '!'
669    #define CHAR_QUOTATION_MARK         '"'
670    #define CHAR_NUMBER_SIGN            '#'
671    #define CHAR_DOLLAR_SIGN            '$'
672    #define CHAR_PERCENT_SIGN           '%'
673    #define CHAR_AMPERSAND              '&'
674    #define CHAR_APOSTROPHE             '\''
675    #define CHAR_LEFT_PARENTHESIS       '('
676    #define CHAR_RIGHT_PARENTHESIS      ')'
677    #define CHAR_ASTERISK               '*'
678    #define CHAR_PLUS                   '+'
679    #define CHAR_COMMA                  ','
680    #define CHAR_MINUS                  '-'
681    #define CHAR_DOT                    '.'
682    #define CHAR_SLASH                  '/'
683    #define CHAR_0                      '0'
684    #define CHAR_1                      '1'
685    #define CHAR_2                      '2'
686    #define CHAR_3                      '3'
687    #define CHAR_4                      '4'
688    #define CHAR_5                      '5'
689    #define CHAR_6                      '6'
690    #define CHAR_7                      '7'
691    #define CHAR_8                      '8'
692    #define CHAR_9                      '9'
693    #define CHAR_COLON                  ':'
694    #define CHAR_SEMICOLON              ';'
695    #define CHAR_LESS_THAN_SIGN         '<'
696    #define CHAR_EQUALS_SIGN            '='
697    #define CHAR_GREATER_THAN_SIGN      '>'
698    #define CHAR_QUESTION_MARK          '?'
699    #define CHAR_COMMERCIAL_AT          '@'
700    #define CHAR_A                      'A'
701    #define CHAR_B                      'B'
702    #define CHAR_C                      'C'
703    #define CHAR_D                      'D'
704    #define CHAR_E                      'E'
705    #define CHAR_F                      'F'
706    #define CHAR_G                      'G'
707    #define CHAR_H                      'H'
708    #define CHAR_I                      'I'
709    #define CHAR_J                      'J'
710    #define CHAR_K                      'K'
711    #define CHAR_L                      'L'
712    #define CHAR_M                      'M'
713    #define CHAR_N                      'N'
714    #define CHAR_O                      'O'
715    #define CHAR_P                      'P'
716    #define CHAR_Q                      'Q'
717    #define CHAR_R                      'R'
718    #define CHAR_S                      'S'
719    #define CHAR_T                      'T'
720    #define CHAR_U                      'U'
721    #define CHAR_V                      'V'
722    #define CHAR_W                      'W'
723    #define CHAR_X                      'X'
724    #define CHAR_Y                      'Y'
725    #define CHAR_Z                      'Z'
726    #define CHAR_LEFT_SQUARE_BRACKET    '['
727    #define CHAR_BACKSLASH              '\\'
728    #define CHAR_RIGHT_SQUARE_BRACKET   ']'
729    #define CHAR_CIRCUMFLEX_ACCENT      '^'
730    #define CHAR_UNDERSCORE             '_'
731    #define CHAR_GRAVE_ACCENT           '`'
732    #define CHAR_a                      'a'
733    #define CHAR_b                      'b'
734    #define CHAR_c                      'c'
735    #define CHAR_d                      'd'
736    #define CHAR_e                      'e'
737    #define CHAR_f                      'f'
738    #define CHAR_g                      'g'
739    #define CHAR_h                      'h'
740    #define CHAR_i                      'i'
741    #define CHAR_j                      'j'
742    #define CHAR_k                      'k'
743    #define CHAR_l                      'l'
744    #define CHAR_m                      'm'
745    #define CHAR_n                      'n'
746    #define CHAR_o                      'o'
747    #define CHAR_p                      'p'
748    #define CHAR_q                      'q'
749    #define CHAR_r                      'r'
750    #define CHAR_s                      's'
751    #define CHAR_t                      't'
752    #define CHAR_u                      'u'
753    #define CHAR_v                      'v'
754    #define CHAR_w                      'w'
755    #define CHAR_x                      'x'
756    #define CHAR_y                      'y'
757    #define CHAR_z                      'z'
758    #define CHAR_LEFT_CURLY_BRACKET     '{'
759    #define CHAR_VERTICAL_LINE          '|'
760    #define CHAR_RIGHT_CURLY_BRACKET    '}'
761    #define CHAR_TILDE                  '~'
762    
763    #define STR_HT                      "\t"
764    #define STR_VT                      "\v"
765    #define STR_FF                      "\f"
766    #define STR_CR                      "\r"
767    #define STR_NL                      "\n"
768    #define STR_BS                      "\b"
769    #define STR_BEL                     "\a"
770    #ifdef EBCDIC
771    #define STR_ESC                     "\047"
772    #define STR_DEL                     "\007"
773    #else
774    #define STR_ESC                     "\033"
775    #define STR_DEL                     "\177"
776    #endif
777    
778    #define STR_SPACE                   " "
779    #define STR_EXCLAMATION_MARK        "!"
780    #define STR_QUOTATION_MARK          "\""
781    #define STR_NUMBER_SIGN             "#"
782    #define STR_DOLLAR_SIGN             "$"
783    #define STR_PERCENT_SIGN            "%"
784    #define STR_AMPERSAND               "&"
785    #define STR_APOSTROPHE              "'"
786    #define STR_LEFT_PARENTHESIS        "("
787    #define STR_RIGHT_PARENTHESIS       ")"
788    #define STR_ASTERISK                "*"
789    #define STR_PLUS                    "+"
790    #define STR_COMMA                   ","
791    #define STR_MINUS                   "-"
792    #define STR_DOT                     "."
793    #define STR_SLASH                   "/"
794    #define STR_0                       "0"
795    #define STR_1                       "1"
796    #define STR_2                       "2"
797    #define STR_3                       "3"
798    #define STR_4                       "4"
799    #define STR_5                       "5"
800    #define STR_6                       "6"
801    #define STR_7                       "7"
802    #define STR_8                       "8"
803    #define STR_9                       "9"
804    #define STR_COLON                   ":"
805    #define STR_SEMICOLON               ";"
806    #define STR_LESS_THAN_SIGN          "<"
807    #define STR_EQUALS_SIGN             "="
808    #define STR_GREATER_THAN_SIGN       ">"
809    #define STR_QUESTION_MARK           "?"
810    #define STR_COMMERCIAL_AT           "@"
811    #define STR_A                       "A"
812    #define STR_B                       "B"
813    #define STR_C                       "C"
814    #define STR_D                       "D"
815    #define STR_E                       "E"
816    #define STR_F                       "F"
817    #define STR_G                       "G"
818    #define STR_H                       "H"
819    #define STR_I                       "I"
820    #define STR_J                       "J"
821    #define STR_K                       "K"
822    #define STR_L                       "L"
823    #define STR_M                       "M"
824    #define STR_N                       "N"
825    #define STR_O                       "O"
826    #define STR_P                       "P"
827    #define STR_Q                       "Q"
828    #define STR_R                       "R"
829    #define STR_S                       "S"
830    #define STR_T                       "T"
831    #define STR_U                       "U"
832    #define STR_V                       "V"
833    #define STR_W                       "W"
834    #define STR_X                       "X"
835    #define STR_Y                       "Y"
836    #define STR_Z                       "Z"
837    #define STR_LEFT_SQUARE_BRACKET     "["
838    #define STR_BACKSLASH               "\\"
839    #define STR_RIGHT_SQUARE_BRACKET    "]"
840    #define STR_CIRCUMFLEX_ACCENT       "^"
841    #define STR_UNDERSCORE              "_"
842    #define STR_GRAVE_ACCENT            "`"
843    #define STR_a                       "a"
844    #define STR_b                       "b"
845    #define STR_c                       "c"
846    #define STR_d                       "d"
847    #define STR_e                       "e"
848    #define STR_f                       "f"
849    #define STR_g                       "g"
850    #define STR_h                       "h"
851    #define STR_i                       "i"
852    #define STR_j                       "j"
853    #define STR_k                       "k"
854    #define STR_l                       "l"
855    #define STR_m                       "m"
856    #define STR_n                       "n"
857    #define STR_o                       "o"
858    #define STR_p                       "p"
859    #define STR_q                       "q"
860    #define STR_r                       "r"
861    #define STR_s                       "s"
862    #define STR_t                       "t"
863    #define STR_u                       "u"
864    #define STR_v                       "v"
865    #define STR_w                       "w"
866    #define STR_x                       "x"
867    #define STR_y                       "y"
868    #define STR_z                       "z"
869    #define STR_LEFT_CURLY_BRACKET      "{"
870    #define STR_VERTICAL_LINE           "|"
871    #define STR_RIGHT_CURLY_BRACKET     "}"
872    #define STR_TILDE                   "~"
873    
874    #define STRING_ACCEPT0              "ACCEPT\0"
875    #define STRING_COMMIT0              "COMMIT\0"
876    #define STRING_F0                   "F\0"
877    #define STRING_FAIL0                "FAIL\0"
878    #define STRING_PRUNE0               "PRUNE\0"
879    #define STRING_SKIP0                "SKIP\0"
880    #define STRING_THEN                 "THEN"
881    
882    #define STRING_alpha0               "alpha\0"
883    #define STRING_lower0               "lower\0"
884    #define STRING_upper0               "upper\0"
885    #define STRING_alnum0               "alnum\0"
886    #define STRING_ascii0               "ascii\0"
887    #define STRING_blank0               "blank\0"
888    #define STRING_cntrl0               "cntrl\0"
889    #define STRING_digit0               "digit\0"
890    #define STRING_graph0               "graph\0"
891    #define STRING_print0               "print\0"
892    #define STRING_punct0               "punct\0"
893    #define STRING_space0               "space\0"
894    #define STRING_word0                "word\0"
895    #define STRING_xdigit               "xdigit"
896    
897    #define STRING_DEFINE               "DEFINE"
898    
899    #define STRING_CR_RIGHTPAR          "CR)"
900    #define STRING_LF_RIGHTPAR          "LF)"
901    #define STRING_CRLF_RIGHTPAR        "CRLF)"
902    #define STRING_ANY_RIGHTPAR         "ANY)"
903    #define STRING_ANYCRLF_RIGHTPAR     "ANYCRLF)"
904    #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"
905    #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"
906    #define STRING_UTF8_RIGHTPAR        "UTF8)"
907    
908    #else  /* SUPPORT_UTF8 */
909    
910    /* UTF-8 support is enabled; always use UTF-8 (=ASCII) character codes. This
911    works in both modes non-EBCDIC platforms, and on EBCDIC platforms in UTF-8 mode
912    only. */
913    
914    #define CHAR_HT                     '\011'
915    #define CHAR_VT                     '\013'
916    #define CHAR_FF                     '\014'
917    #define CHAR_CR                     '\015'
918    #define CHAR_NL                     '\012'
919    #define CHAR_BS                     '\010'
920    #define CHAR_BEL                    '\007'
921    #define CHAR_ESC                    '\033'
922    #define CHAR_DEL                    '\177'
923    
924    #define CHAR_SPACE                  '\040'
925    #define CHAR_EXCLAMATION_MARK       '\041'
926    #define CHAR_QUOTATION_MARK         '\042'
927    #define CHAR_NUMBER_SIGN            '\043'
928    #define CHAR_DOLLAR_SIGN            '\044'
929    #define CHAR_PERCENT_SIGN           '\045'
930    #define CHAR_AMPERSAND              '\046'
931    #define CHAR_APOSTROPHE             '\047'
932    #define CHAR_LEFT_PARENTHESIS       '\050'
933    #define CHAR_RIGHT_PARENTHESIS      '\051'
934    #define CHAR_ASTERISK               '\052'
935    #define CHAR_PLUS                   '\053'
936    #define CHAR_COMMA                  '\054'
937    #define CHAR_MINUS                  '\055'
938    #define CHAR_DOT                    '\056'
939    #define CHAR_SLASH                  '\057'
940    #define CHAR_0                      '\060'
941    #define CHAR_1                      '\061'
942    #define CHAR_2                      '\062'
943    #define CHAR_3                      '\063'
944    #define CHAR_4                      '\064'
945    #define CHAR_5                      '\065'
946    #define CHAR_6                      '\066'
947    #define CHAR_7                      '\067'
948    #define CHAR_8                      '\070'
949    #define CHAR_9                      '\071'
950    #define CHAR_COLON                  '\072'
951    #define CHAR_SEMICOLON              '\073'
952    #define CHAR_LESS_THAN_SIGN         '\074'
953    #define CHAR_EQUALS_SIGN            '\075'
954    #define CHAR_GREATER_THAN_SIGN      '\076'
955    #define CHAR_QUESTION_MARK          '\077'
956    #define CHAR_COMMERCIAL_AT          '\100'
957    #define CHAR_A                      '\101'
958    #define CHAR_B                      '\102'
959    #define CHAR_C                      '\103'
960    #define CHAR_D                      '\104'
961    #define CHAR_E                      '\105'
962    #define CHAR_F                      '\106'
963    #define CHAR_G                      '\107'
964    #define CHAR_H                      '\110'
965    #define CHAR_I                      '\111'
966    #define CHAR_J                      '\112'
967    #define CHAR_K                      '\113'
968    #define CHAR_L                      '\114'
969    #define CHAR_M                      '\115'
970    #define CHAR_N                      '\116'
971    #define CHAR_O                      '\117'
972    #define CHAR_P                      '\120'
973    #define CHAR_Q                      '\121'
974    #define CHAR_R                      '\122'
975    #define CHAR_S                      '\123'
976    #define CHAR_T                      '\124'
977    #define CHAR_U                      '\125'
978    #define CHAR_V                      '\126'
979    #define CHAR_W                      '\127'
980    #define CHAR_X                      '\130'
981    #define CHAR_Y                      '\131'
982    #define CHAR_Z                      '\132'
983    #define CHAR_LEFT_SQUARE_BRACKET    '\133'
984    #define CHAR_BACKSLASH              '\134'
985    #define CHAR_RIGHT_SQUARE_BRACKET   '\135'
986    #define CHAR_CIRCUMFLEX_ACCENT      '\136'
987    #define CHAR_UNDERSCORE             '\137'
988    #define CHAR_GRAVE_ACCENT           '\140'
989    #define CHAR_a                      '\141'
990    #define CHAR_b                      '\142'
991    #define CHAR_c                      '\143'
992    #define CHAR_d                      '\144'
993    #define CHAR_e                      '\145'
994    #define CHAR_f                      '\146'
995    #define CHAR_g                      '\147'
996    #define CHAR_h                      '\150'
997    #define CHAR_i                      '\151'
998    #define CHAR_j                      '\152'
999    #define CHAR_k                      '\153'
1000    #define CHAR_l                      '\154'
1001    #define CHAR_m                      '\155'
1002    #define CHAR_n                      '\156'
1003    #define CHAR_o                      '\157'
1004    #define CHAR_p                      '\160'
1005    #define CHAR_q                      '\161'
1006    #define CHAR_r                      '\162'
1007    #define CHAR_s                      '\163'
1008    #define CHAR_t                      '\164'
1009    #define CHAR_u                      '\165'
1010    #define CHAR_v                      '\166'
1011    #define CHAR_w                      '\167'
1012    #define CHAR_x                      '\170'
1013    #define CHAR_y                      '\171'
1014    #define CHAR_z                      '\172'
1015    #define CHAR_LEFT_CURLY_BRACKET     '\173'
1016    #define CHAR_VERTICAL_LINE          '\174'
1017    #define CHAR_RIGHT_CURLY_BRACKET    '\175'
1018    #define CHAR_TILDE                  '\176'
1019    
1020    #define STR_HT                      "\011"
1021    #define STR_VT                      "\013"
1022    #define STR_FF                      "\014"
1023    #define STR_CR                      "\015"
1024    #define STR_NL                      "\012"
1025    #define STR_BS                      "\010"
1026    #define STR_BEL                     "\007"
1027    #define STR_ESC                     "\033"
1028    #define STR_DEL                     "\177"
1029    
1030    #define STR_SPACE                   "\040"
1031    #define STR_EXCLAMATION_MARK        "\041"
1032    #define STR_QUOTATION_MARK          "\042"
1033    #define STR_NUMBER_SIGN             "\043"
1034    #define STR_DOLLAR_SIGN             "\044"
1035    #define STR_PERCENT_SIGN            "\045"
1036    #define STR_AMPERSAND               "\046"
1037    #define STR_APOSTROPHE              "\047"
1038    #define STR_LEFT_PARENTHESIS        "\050"
1039    #define STR_RIGHT_PARENTHESIS       "\051"
1040    #define STR_ASTERISK                "\052"
1041    #define STR_PLUS                    "\053"
1042    #define STR_COMMA                   "\054"
1043    #define STR_MINUS                   "\055"
1044    #define STR_DOT                     "\056"
1045    #define STR_SLASH                   "\057"
1046    #define STR_0                       "\060"
1047    #define STR_1                       "\061"
1048    #define STR_2                       "\062"
1049    #define STR_3                       "\063"
1050    #define STR_4                       "\064"
1051    #define STR_5                       "\065"
1052    #define STR_6                       "\066"
1053    #define STR_7                       "\067"
1054    #define STR_8                       "\070"
1055    #define STR_9                       "\071"
1056    #define STR_COLON                   "\072"
1057    #define STR_SEMICOLON               "\073"
1058    #define STR_LESS_THAN_SIGN          "\074"
1059    #define STR_EQUALS_SIGN             "\075"
1060    #define STR_GREATER_THAN_SIGN       "\076"
1061    #define STR_QUESTION_MARK           "\077"
1062    #define STR_COMMERCIAL_AT           "\100"
1063    #define STR_A                       "\101"
1064    #define STR_B                       "\102"
1065    #define STR_C                       "\103"
1066    #define STR_D                       "\104"
1067    #define STR_E                       "\105"
1068    #define STR_F                       "\106"
1069    #define STR_G                       "\107"
1070    #define STR_H                       "\110"
1071    #define STR_I                       "\111"
1072    #define STR_J                       "\112"
1073    #define STR_K                       "\113"
1074    #define STR_L                       "\114"
1075    #define STR_M                       "\115"
1076    #define STR_N                       "\116"
1077    #define STR_O                       "\117"
1078    #define STR_P                       "\120"
1079    #define STR_Q                       "\121"
1080    #define STR_R                       "\122"
1081    #define STR_S                       "\123"
1082    #define STR_T                       "\124"
1083    #define STR_U                       "\125"
1084    #define STR_V                       "\126"
1085    #define STR_W                       "\127"
1086    #define STR_X                       "\130"
1087    #define STR_Y                       "\131"
1088    #define STR_Z                       "\132"
1089    #define STR_LEFT_SQUARE_BRACKET     "\133"
1090    #define STR_BACKSLASH               "\134"
1091    #define STR_RIGHT_SQUARE_BRACKET    "\135"
1092    #define STR_CIRCUMFLEX_ACCENT       "\136"
1093    #define STR_UNDERSCORE              "\137"
1094    #define STR_GRAVE_ACCENT            "\140"
1095    #define STR_a                       "\141"
1096    #define STR_b                       "\142"
1097    #define STR_c                       "\143"
1098    #define STR_d                       "\144"
1099    #define STR_e                       "\145"
1100    #define STR_f                       "\146"
1101    #define STR_g                       "\147"
1102    #define STR_h                       "\150"
1103    #define STR_i                       "\151"
1104    #define STR_j                       "\152"
1105    #define STR_k                       "\153"
1106    #define STR_l                       "\154"
1107    #define STR_m                       "\155"
1108    #define STR_n                       "\156"
1109    #define STR_o                       "\157"
1110    #define STR_p                       "\160"
1111    #define STR_q                       "\161"
1112    #define STR_r                       "\162"
1113    #define STR_s                       "\163"
1114    #define STR_t                       "\164"
1115    #define STR_u                       "\165"
1116    #define STR_v                       "\166"
1117    #define STR_w                       "\167"
1118    #define STR_x                       "\170"
1119    #define STR_y                       "\171"
1120    #define STR_z                       "\172"
1121    #define STR_LEFT_CURLY_BRACKET      "\173"
1122    #define STR_VERTICAL_LINE           "\174"
1123    #define STR_RIGHT_CURLY_BRACKET     "\175"
1124    #define STR_TILDE                   "\176"
1125    
1126    #define STRING_ACCEPT0              STR_A STR_C STR_C STR_E STR_P STR_T "\0"
1127    #define STRING_COMMIT0              STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1128    #define STRING_F0                   STR_F "\0"
1129    #define STRING_FAIL0                STR_F STR_A STR_I STR_L "\0"
1130    #define STRING_PRUNE0               STR_P STR_R STR_U STR_N STR_E "\0"
1131    #define STRING_SKIP0                STR_S STR_K STR_I STR_P "\0"
1132    #define STRING_THEN                 STR_T STR_H STR_E STR_N
1133    
1134    #define STRING_alpha0               STR_a STR_l STR_p STR_h STR_a "\0"
1135    #define STRING_lower0               STR_l STR_o STR_w STR_e STR_r "\0"
1136    #define STRING_upper0               STR_u STR_p STR_p STR_e STR_r "\0"
1137    #define STRING_alnum0               STR_a STR_l STR_n STR_u STR_m "\0"
1138    #define STRING_ascii0               STR_a STR_s STR_c STR_i STR_i "\0"
1139    #define STRING_blank0               STR_b STR_l STR_a STR_n STR_k "\0"
1140    #define STRING_cntrl0               STR_c STR_n STR_t STR_r STR_l "\0"
1141    #define STRING_digit0               STR_d STR_i STR_g STR_i STR_t "\0"
1142    #define STRING_graph0               STR_g STR_r STR_a STR_p STR_h "\0"
1143    #define STRING_print0               STR_p STR_r STR_i STR_n STR_t "\0"
1144    #define STRING_punct0               STR_p STR_u STR_n STR_c STR_t "\0"
1145    #define STRING_space0               STR_s STR_p STR_a STR_c STR_e "\0"
1146    #define STRING_word0                STR_w STR_o STR_r STR_d       "\0"
1147    #define STRING_xdigit               STR_x STR_d STR_i STR_g STR_i STR_t
1148    
1149    #define STRING_DEFINE               STR_D STR_E STR_F STR_I STR_N STR_E
1150    
1151    #define STRING_CR_RIGHTPAR          STR_C STR_R STR_RIGHT_PARENTHESIS
1152    #define STRING_LF_RIGHTPAR          STR_L STR_F STR_RIGHT_PARENTHESIS
1153    #define STRING_CRLF_RIGHTPAR        STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1154    #define STRING_ANY_RIGHTPAR         STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1155    #define STRING_ANYCRLF_RIGHTPAR     STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1156    #define STRING_BSR_ANYCRLF_RIGHTPAR STR_B STR_S STR_R STR_UNDERSCORE STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1157    #define STRING_BSR_UNICODE_RIGHTPAR STR_B STR_S STR_R STR_UNDERSCORE STR_U STR_N STR_I STR_C STR_O STR_D STR_E STR_RIGHT_PARENTHESIS
1158    #define STRING_UTF8_RIGHTPAR        STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1159    
1160    #endif  /* SUPPORT_UTF8 */
1161    
1162  /* Escape items that are just an encoding of a particular data value. */  /* Escape items that are just an encoding of a particular data value. */
1163    
1164  #ifndef ESC_e  #ifndef ESC_e
1165  #define ESC_e 27  #define ESC_e CHAR_ESC
1166  #endif  #endif
1167    
1168  #ifndef ESC_f  #ifndef ESC_f
1169  #define ESC_f '\f'  #define ESC_f CHAR_FF
1170  #endif  #endif
1171    
1172  #ifndef ESC_n  #ifndef ESC_n
1173  #define ESC_n '\n'  #define ESC_n CHAR_NL
1174  #endif  #endif
1175    
1176  #ifndef ESC_r  #ifndef ESC_r
1177  #define ESC_r '\r'  #define ESC_r CHAR_CR
1178  #endif  #endif
1179    
1180  /* We can't officially use ESC_t because it is a POSIX reserved identifier  /* We can't officially use ESC_t because it is a POSIX reserved identifier
1181  (presumably because of all the others like size_t). */  (presumably because of all the others like size_t). */
1182    
1183  #ifndef ESC_tee  #ifndef ESC_tee
1184  #define ESC_tee '\t'  #define ESC_tee CHAR_HT
1185  #endif  #endif
1186    
1187  /* Codes for different types of Unicode property */  /* Codes for different types of Unicode property */
# Line 639  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, E Line 1228  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, E
1228  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.
1229    
1230  *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions  *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
1231  that follow must also be updated to match. There is also a table called  that follow must also be updated to match. There are also tables called
1232  "coptable" in pcre_dfa_exec.c that must be updated. */  "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1233    
1234  enum {  enum {
1235    OP_END,            /* 0 End of pattern */    OP_END,            /* 0 End of pattern */
# Line 776  enum { Line 1365  enum {
1365    OP_SCBRA,          /* 98 Start of capturing bracket, check empty */    OP_SCBRA,          /* 98 Start of capturing bracket, check empty */
1366    OP_SCOND,          /* 99 Conditional group, check empty */    OP_SCOND,          /* 99 Conditional group, check empty */
1367    
1368      /* The next two pairs must (respectively) be kept together. */
1369    
1370    OP_CREF,           /* 100 Used to hold a capture number as condition */    OP_CREF,           /* 100 Used to hold a capture number as condition */
1371    OP_RREF,           /* 101 Used to hold a recursion number as condition */    OP_NCREF,          /* 101 Same, but generaged by a name reference*/
1372    OP_DEF,            /* 102 The DEFINE condition */    OP_RREF,           /* 102 Used to hold a recursion number as condition */
1373      OP_NRREF,          /* 103 Same, but generaged by a name reference*/
1374      OP_DEF,            /* 104 The DEFINE condition */
1375    
1376    OP_BRAZERO,        /* 103 These two must remain together and in this */    OP_BRAZERO,        /* 105 These two must remain together and in this */
1377    OP_BRAMINZERO,     /* 104 order. */    OP_BRAMINZERO,     /* 106 order. */
1378    
1379    /* These are backtracking control verbs */    /* These are backtracking control verbs */
1380    
1381    OP_PRUNE,          /* 105 */    OP_PRUNE,          /* 107 */
1382    OP_SKIP,           /* 106 */    OP_SKIP,           /* 108 */
1383    OP_THEN,           /* 107 */    OP_THEN,           /* 109 */
1384    OP_COMMIT,         /* 108 */    OP_COMMIT,         /* 110 */
1385    
1386    /* These are forced failure and success verbs */    /* These are forced failure and success verbs */
1387    
1388    OP_FAIL,           /* 109 */    OP_FAIL,           /* 111 */
1389    OP_ACCEPT,         /* 110 */    OP_ACCEPT,         /* 112 */
1390      OP_CLOSE,          /* 113 Used before OP_ACCEPT to close open captures */
1391    
1392    /* This is used to skip a subpattern with a {0} quantifier */    /* This is used to skip a subpattern with a {0} quantifier */
1393    
1394    OP_SKIPZERO        /* 111 */    OP_SKIPZERO,       /* 114 */
1395    
1396      /* This is not an opcode, but is used to check that tables indexed by opcode
1397      are the correct length, in order to catch updating errors - there have been
1398      some in the past. */
1399    
1400      OP_TABLE_LENGTH
1401  };  };
1402    
1403    /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
1404    definitions that follow must also be updated to match. There are also tables
1405    called "coptable" cna "poptable" in pcre_dfa_exec.c that must be updated. */
1406    
1407    
1408  /* 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
1409  for debugging. The macro is referenced only in pcre_printint.c. */  for debugging. The macro is referenced only in pcre_printint.c. */
# Line 821  for debugging. The macro is referenced o Line 1425  for debugging. The macro is referenced o
1425    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \
1426    "AssertB", "AssertB not", "Reverse",                            \    "AssertB", "AssertB not", "Reverse",                            \
1427    "Once", "Bra", "CBra", "Cond", "SBra", "SCBra", "SCond",        \    "Once", "Bra", "CBra", "Cond", "SBra", "SCBra", "SCond",        \
1428    "Cond ref", "Cond rec", "Cond def", "Brazero", "Braminzero",    \    "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def",   \
1429      "Brazero", "Braminzero",                                        \
1430    "*PRUNE", "*SKIP", "*THEN", "*COMMIT", "*FAIL", "*ACCEPT",      \    "*PRUNE", "*SKIP", "*THEN", "*COMMIT", "*FAIL", "*ACCEPT",      \
1431    "Skip zero"    "Close", "Skip zero"
1432    
1433    
1434  /* 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 840  in UTF-8 mode. The code that uses this t Line 1445  in UTF-8 mode. The code that uses this t
1445    1, 1, 1, 1, 1,                 /* \A, \G, \K, \B, \b                     */ \    1, 1, 1, 1, 1,                 /* \A, \G, \K, \B, \b                     */ \
1446    1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \    1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \
1447    1, 1, 1,                       /* Any, AllAny, Anybyte                   */ \    1, 1, 1,                       /* Any, AllAny, Anybyte                   */ \
1448    3, 3, 1,                       /* NOTPROP, PROP, EXTUNI                  */ \    3, 3,                          /* \P, \p                                 */ \
1449    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
1450      1,                             /* \X                                     */ \
1451    1, 1, 2, 1, 1,                 /* \Z, \z, Opt, ^, $                      */ \    1, 1, 2, 1, 1,                 /* \Z, \z, Opt, ^, $                      */ \
1452    2,                             /* Char  - the minimum length             */ \    2,                             /* Char  - the minimum length             */ \
1453    2,                             /* Charnc  - the minimum length           */ \    2,                             /* Charnc  - the minimum length           */ \
# Line 883  in UTF-8 mode. The code that uses this t Line 1489  in UTF-8 mode. The code that uses this t
1489    1+LINK_SIZE,                   /* SBRA                                   */ \    1+LINK_SIZE,                   /* SBRA                                   */ \
1490    3+LINK_SIZE,                   /* SCBRA                                  */ \    3+LINK_SIZE,                   /* SCBRA                                  */ \
1491    1+LINK_SIZE,                   /* SCOND                                  */ \    1+LINK_SIZE,                   /* SCOND                                  */ \
1492    3,                             /* CREF                                   */ \    3, 3,                          /* CREF, NCREF                            */ \
1493    3,                             /* RREF                                   */ \    3, 3,                          /* RREF, NRREF                            */ \
1494    1,                             /* DEF                                    */ \    1,                             /* DEF                                    */ \
1495    1, 1,                          /* BRAZERO, BRAMINZERO                    */ \    1, 1,                          /* BRAZERO, BRAMINZERO                    */ \
1496    1, 1, 1, 1,                    /* PRUNE, SKIP, THEN, COMMIT,             */ \    1, 1, 1, 1,                    /* PRUNE, SKIP, THEN, COMMIT,             */ \
1497    1, 1, 1                        /* FAIL, ACCEPT, SKIPZERO                 */    1, 1, 3, 1                     /* FAIL, ACCEPT, CLOSE, SKIPZERO          */
1498    
1499    
1500  /* A magic value for OP_RREF to indicate the "any recursion" condition. */  /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
1501    condition. */
1502    
1503  #define RREF_ANY  0xffff  #define RREF_ANY  0xffff
1504    
1505  /* Error code numbers. They are given names so that they can more easily be  /* Compile time error code numbers. They are given names so that they can more
1506  tracked. */  easily be tracked. When a new number is added, the table called eint in
1507    pcreposix.c must be updated. */
1508    
1509  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,  ERR5,  ERR6,  ERR7,  ERR8,  ERR9,  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,  ERR5,  ERR6,  ERR7,  ERR8,  ERR9,
1510         ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,         ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
# Line 904  enum { ERR0, ERR1, ERR2, ERR3, ERR4, Line 1512  enum { ERR0, ERR1, ERR2, ERR3, ERR4,
1512         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
1513         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
1514         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
1515         ERR60, ERR61, ERR62, ERR63, ERR64 };         ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERRCOUNT };
1516    
1517  /* 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
1518  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 920  Because people can now save and re-use c Line 1528  Because people can now save and re-use c
1528  structure should be made at the end, and something earlier (e.g. a new  structure should be made at the end, and something earlier (e.g. a new
1529  flag in the options or one of the dummy fields) should indicate that the new  flag in the options or one of the dummy fields) should indicate that the new
1530  fields are present. Currently PCRE always sets the dummy fields to zero.  fields are present. Currently PCRE always sets the dummy fields to zero.
1531  NOTE NOTE NOTE:  NOTE NOTE NOTE
1532  */  */
1533    
1534  typedef struct real_pcre {  typedef struct real_pcre {
# Line 947  remark (see NOTE above) about extending Line 1555  remark (see NOTE above) about extending
1555    
1556  typedef struct pcre_study_data {  typedef struct pcre_study_data {
1557    pcre_uint32 size;               /* Total that was malloced */    pcre_uint32 size;               /* Total that was malloced */
1558    pcre_uint32 options;    pcre_uint32 flags;              /* Private flags */
1559    uschar start_bits[32];    uschar start_bits[32];          /* Starting char bits */
1560      pcre_uint32 minlength;          /* Minimum subject length */
1561  } pcre_study_data;  } pcre_study_data;
1562    
1563    /* Structure for building a chain of open capturing subpatterns during
1564    compiling, so that instructions to close them can be compiled when (*ACCEPT) is
1565    encountered. This is also used to identify subpatterns that contain recursive
1566    back references to themselves, so that they can be made atomic. */
1567    
1568    typedef struct open_capitem {
1569      struct open_capitem *next;    /* Chain link */
1570      pcre_uint16 number;           /* Capture number */
1571      pcre_uint16 flag;             /* Set TRUE if recursive back ref */
1572    } open_capitem;
1573    
1574  /* Structure for passing "static" information around between the functions  /* Structure for passing "static" information around between the functions
1575  doing the compiling, so that they are thread-safe. */  doing the compiling, so that they are thread-safe. */
1576    
# Line 963  typedef struct compile_data { Line 1583  typedef struct compile_data {
1583    const uschar *start_code;     /* The start of the compiled code */    const uschar *start_code;     /* The start of the compiled code */
1584    const uschar *start_pattern;  /* The start of the pattern */    const uschar *start_pattern;  /* The start of the pattern */
1585    const uschar *end_pattern;    /* The end of the pattern */    const uschar *end_pattern;    /* The end of the pattern */
1586      open_capitem *open_caps;      /* Chain of open capture items */
1587    uschar *hwm;                  /* High watermark of workspace */    uschar *hwm;                  /* High watermark of workspace */
1588    uschar *name_table;           /* The name/number table */    uschar *name_table;           /* The name/number table */
1589    int  names_found;             /* Number of entries so far */    int  names_found;             /* Number of entries so far */
# Line 975  typedef struct compile_data { Line 1596  typedef struct compile_data {
1596    int  external_flags;          /* External flag bits to be set */    int  external_flags;          /* External flag bits to be set */
1597    int  req_varyopt;             /* "After variable item" flag for reqbyte */    int  req_varyopt;             /* "After variable item" flag for reqbyte */
1598    BOOL had_accept;              /* (*ACCEPT) encountered */    BOOL had_accept;              /* (*ACCEPT) encountered */
1599      BOOL check_lookbehind;        /* Lookbehinds need later checking */
1600    int  nltype;                  /* Newline type */    int  nltype;                  /* Newline type */
1601    int  nllen;                   /* Newline string length */    int  nllen;                   /* Newline string length */
1602    uschar nl[4];                 /* Newline string when fixed length */    uschar nl[4];                 /* Newline string when fixed length */
# Line 985  branches, for testing for left recursion Line 1607  branches, for testing for left recursion
1607    
1608  typedef struct branch_chain {  typedef struct branch_chain {
1609    struct branch_chain *outer;    struct branch_chain *outer;
1610    uschar *current;    uschar *current_branch;
1611  } branch_chain;  } branch_chain;
1612    
1613  /* Structure for items in a linked list that represents an explicit recursive  /* Structure for items in a linked list that represents an explicit recursive
# Line 998  typedef struct recursion_info { Line 1620  typedef struct recursion_info {
1620    USPTR save_start;             /* Old value of mstart */    USPTR save_start;             /* Old value of mstart */
1621    int *offset_save;             /* Pointer to start of saved offsets */    int *offset_save;             /* Pointer to start of saved offsets */
1622    int saved_max;                /* Number of saved offsets */    int saved_max;                /* Number of saved offsets */
1623      int save_offset_top;          /* Current value of offset_top */
1624  } recursion_info;  } recursion_info;
1625    
1626  /* 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
# Line 1022  typedef struct match_data { Line 1645  typedef struct match_data {
1645    int    offset_max;            /* The maximum usable for return data */    int    offset_max;            /* The maximum usable for return data */
1646    int    nltype;                /* Newline type */    int    nltype;                /* Newline type */
1647    int    nllen;                 /* Newline string length */    int    nllen;                 /* Newline string length */
1648      int    name_count;            /* Number of names in name table */
1649      int    name_entry_size;       /* Size of entry in names table */
1650      uschar *name_table;           /* Table of names */
1651    uschar nl[4];                 /* Newline string when fixed */    uschar nl[4];                 /* Newline string when fixed */
1652    const uschar *lcc;            /* Points to lower casing table */    const uschar *lcc;            /* Points to lower casing table */
1653    const uschar *ctypes;         /* Points to table of type maps */    const uschar *ctypes;         /* Points to table of type maps */
# Line 1032  typedef struct match_data { Line 1658  typedef struct match_data {
1658    BOOL   jscript_compat;        /* JAVASCRIPT_COMPAT flag */    BOOL   jscript_compat;        /* JAVASCRIPT_COMPAT flag */
1659    BOOL   endonly;               /* Dollar not before final \n */    BOOL   endonly;               /* Dollar not before final \n */
1660    BOOL   notempty;              /* Empty string match not wanted */    BOOL   notempty;              /* Empty string match not wanted */
1661    BOOL   partial;               /* PARTIAL flag */    BOOL   notempty_atstart;      /* Empty string match at start not wanted */
1662    BOOL   hitend;                /* Hit the end of the subject at some point */    BOOL   hitend;                /* Hit the end of the subject at some point */
1663    BOOL   bsr_anycrlf;           /* \R is just any CRLF, not full Unicode */    BOOL   bsr_anycrlf;           /* \R is just any CRLF, not full Unicode */
1664    const uschar *start_code;     /* For use when recursing */    const uschar *start_code;     /* For use when recursing */
# Line 1040  typedef struct match_data { Line 1666  typedef struct match_data {
1666    USPTR  end_subject;           /* End of the subject string */    USPTR  end_subject;           /* End of the subject string */
1667    USPTR  start_match_ptr;       /* Start of matched string */    USPTR  start_match_ptr;       /* Start of matched string */
1668    USPTR  end_match_ptr;         /* Subject position at end match */    USPTR  end_match_ptr;         /* Subject position at end match */
1669      USPTR  start_used_ptr;        /* Earliest consulted character */
1670      int    partial;               /* PARTIAL options */
1671    int    end_offset_top;        /* Highwater mark at end of match */    int    end_offset_top;        /* Highwater mark at end of match */
1672    int    capture_last;          /* Most recent capture number */    int    capture_last;          /* Most recent capture number */
1673    int    start_offset;          /* The start offset value */    int    start_offset;          /* The start offset value */
# Line 1056  typedef struct dfa_match_data { Line 1684  typedef struct dfa_match_data {
1684    const uschar *start_code;     /* Start of the compiled pattern */    const uschar *start_code;     /* Start of the compiled pattern */
1685    const uschar *start_subject;  /* Start of the subject string */    const uschar *start_subject;  /* Start of the subject string */
1686    const uschar *end_subject;    /* End of subject string */    const uschar *end_subject;    /* End of subject string */
1687      const uschar *start_used_ptr; /* Earliest consulted character */
1688    const uschar *tables;         /* Character tables */    const uschar *tables;         /* Character tables */
1689      int   start_offset;           /* The start offset value */
1690    int   moptions;               /* Match options */    int   moptions;               /* Match options */
1691    int   poptions;               /* Pattern options */    int   poptions;               /* Pattern options */
1692    int    nltype;                /* Newline type */    int    nltype;                /* Newline type */
# Line 1135  extern const uschar _pcre_OP_lengths[]; Line 1765  extern const uschar _pcre_OP_lengths[];
1765  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
1766  sense, but are not part of the PCRE public API. */  sense, but are not part of the PCRE public API. */
1767    
1768  extern BOOL         _pcre_is_newline(const uschar *, int, const uschar *,  extern const uschar *_pcre_find_bracket(const uschar *, BOOL, int);
1769                        int *, BOOL);  extern BOOL          _pcre_is_newline(USPTR, int, USPTR, int *, BOOL);
1770  extern int          _pcre_ord2utf8(int, uschar *);  extern int           _pcre_ord2utf8(int, uschar *);
1771  extern real_pcre   *_pcre_try_flipped(const real_pcre *, real_pcre *,  extern real_pcre    *_pcre_try_flipped(const real_pcre *, real_pcre *,
1772                        const pcre_study_data *, pcre_study_data *);                         const pcre_study_data *, pcre_study_data *);
1773  extern int          _pcre_valid_utf8(const uschar *, int);  extern int           _pcre_valid_utf8(USPTR, int);
1774  extern BOOL         _pcre_was_newline(const uschar *, int, const uschar *,  extern BOOL          _pcre_was_newline(USPTR, int, USPTR, int *, BOOL);
1775                        int *, BOOL);  extern BOOL          _pcre_xclass(int, const uschar *);
 extern BOOL         _pcre_xclass(int, const uschar *);  
1776    
1777    
1778  /* Unicode character database (UCD) */  /* Unicode character database (UCD) */

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