/[pcre]/code/trunk/pcre_internal.h
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revision 454 by ph10, Tue Sep 22 09:42:11 2009 UTC revision 517 by ph10, Wed May 5 10:44:20 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  #endif
53    
54  /* We do not support both EBCDIC and UTF-8 at the same time. The "configure"  /* We do not support both EBCDIC and UTF-8 at the same time. The "configure"
# Line 74  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 86  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 186  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 549  compatibility. */ Line 567  compatibility. */
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 856  so that PCRE works on both ASCII and EBC Line 875  so that PCRE works on both ASCII and EBC
875  #define STRING_COMMIT0              "COMMIT\0"  #define STRING_COMMIT0              "COMMIT\0"
876  #define STRING_F0                   "F\0"  #define STRING_F0                   "F\0"
877  #define STRING_FAIL0                "FAIL\0"  #define STRING_FAIL0                "FAIL\0"
878    #define STRING_MARK0                "MARK\0"
879  #define STRING_PRUNE0               "PRUNE\0"  #define STRING_PRUNE0               "PRUNE\0"
880  #define STRING_SKIP0                "SKIP\0"  #define STRING_SKIP0                "SKIP\0"
881  #define STRING_THEN                 "THEN"  #define STRING_THEN                 "THEN"
# Line 1108  only. */ Line 1128  only. */
1128  #define STRING_COMMIT0              STR_C STR_O STR_M STR_M STR_I STR_T "\0"  #define STRING_COMMIT0              STR_C STR_O STR_M STR_M STR_I STR_T "\0"
1129  #define STRING_F0                   STR_F "\0"  #define STRING_F0                   STR_F "\0"
1130  #define STRING_FAIL0                STR_F STR_A STR_I STR_L "\0"  #define STRING_FAIL0                STR_F STR_A STR_I STR_L "\0"
1131    #define STRING_MARK0                STR_M STR_A STR_R STR_K "\0"
1132  #define STRING_PRUNE0               STR_P STR_R STR_U STR_N STR_E "\0"  #define STRING_PRUNE0               STR_P STR_R STR_U STR_N STR_E "\0"
1133  #define STRING_SKIP0                STR_S STR_K STR_I STR_P "\0"  #define STRING_SKIP0                STR_S STR_K STR_I STR_P "\0"
1134  #define STRING_THEN                 STR_T STR_H STR_E STR_N  #define STRING_THEN                 STR_T STR_H STR_E STR_N
# Line 1169  only. */ Line 1190  only. */
1190    
1191  #define PT_ANY        0    /* Any property - matches all chars */  #define PT_ANY        0    /* Any property - matches all chars */
1192  #define PT_LAMP       1    /* L& - the union of Lu, Ll, Lt */  #define PT_LAMP       1    /* L& - the union of Lu, Ll, Lt */
1193  #define PT_GC         2    /* General characteristic (e.g. L) */  #define PT_GC         2    /* Specified general characteristic (e.g. L) */
1194  #define PT_PC         3    /* Particular characteristic (e.g. Lu) */  #define PT_PC         3    /* Specified particular characteristic (e.g. Lu) */
1195  #define PT_SC         4    /* Script (e.g. Han) */  #define PT_SC         4    /* Script (e.g. Han) */
1196    #define PT_ALNUM      5    /* Alphanumeric - the union of L and N */
1197    #define PT_SPACE      6    /* Perl space - Z plus 9,10,12,13 */
1198    #define PT_PXSPACE    7    /* POSIX space - Z plus 9,10,11,12,13 */
1199    #define PT_WORD       8    /* Word - L plus N plus underscore */
1200    
1201  /* 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
1202  contain UTF-8 characters with values greater than 255. */  contain UTF-8 characters with values greater than 255. */
# Line 1188  contain UTF-8 characters with values gre Line 1213  contain UTF-8 characters with values gre
1213  /* These are escaped items that aren't just an encoding of a particular data  /* These are escaped items that aren't just an encoding of a particular data
1214  value such as \n. They must have non-zero values, as check_escape() returns  value such as \n. They must have non-zero values, as check_escape() returns
1215  their negation. Also, they must appear in the same order as in the opcode  their negation. Also, they must appear in the same order as in the opcode
1216  definitions below, up to ESC_z. There's a dummy for OP_ANY because it  definitions below, up to ESC_z. There's a dummy for OP_ALLANY because it
1217  corresponds to "." rather than an escape sequence, and another for OP_ALLANY  corresponds to "." in DOTALL mode rather than an escape sequence. It is also
1218  (which is used for [^] in JavaScript compatibility mode).  used for [^] in JavaScript compatibility mode. In non-DOTALL mode, "." behaves
1219    like \N.
1220    
1221  The final escape must be ESC_REF as subsequent values are used for  The final escape must be ESC_REF as subsequent values are used for
1222  backreferences (\1, \2, \3, etc). There are two tests in the code for an escape  backreferences (\1, \2, \3, etc). There are two tests in the code for an escape
# Line 1200  put in between that don't consume a char Line 1226  put in between that don't consume a char
1226  */  */
1227    
1228  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, ESC_b, ESC_D, ESC_d, ESC_S, ESC_s,
1229         ESC_W, ESC_w, ESC_dum1, ESC_dum2, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,         ESC_W, ESC_w, ESC_N, ESC_dum, ESC_C, ESC_P, ESC_p, ESC_R, ESC_H,
1230         ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z, ESC_E, ESC_Q, ESC_g, ESC_k,         ESC_h, ESC_V, ESC_v, ESC_X, ESC_Z, ESC_z, ESC_E, ESC_Q, ESC_g, ESC_k,
1231         ESC_REF };         ESC_REF };
1232    
# Line 1209  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, E Line 1235  enum { ESC_A = 1, ESC_G, ESC_K, ESC_B, E
1235  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.
1236    
1237  *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions  *** NOTE NOTE NOTE *** Whenever this list is updated, the two macro definitions
1238  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
1239  "coptable" in pcre_dfa_exec.c that must be updated. */  "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1240    
1241  enum {  enum {
1242    OP_END,            /* 0 End of pattern */    OP_END,            /* 0 End of pattern */
# Line 1228  enum { Line 1254  enum {
1254    OP_WHITESPACE,         /*  9 \s */    OP_WHITESPACE,         /*  9 \s */
1255    OP_NOT_WORDCHAR,       /* 10 \W */    OP_NOT_WORDCHAR,       /* 10 \W */
1256    OP_WORDCHAR,           /* 11 \w */    OP_WORDCHAR,           /* 11 \w */
1257    OP_ANY,            /* 12 Match any character (subject to DOTALL) */    OP_ANY,            /* 12 Match any character except newline */
1258    OP_ALLANY,         /* 13 Match any character (not subject to DOTALL) */    OP_ALLANY,         /* 13 Match any character */
1259    OP_ANYBYTE,        /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */    OP_ANYBYTE,        /* 14 Match any byte (\C); different to OP_ANY for UTF-8 */
1260    OP_NOTPROP,        /* 15 \P (not Unicode property) */    OP_NOTPROP,        /* 15 \P (not Unicode property) */
1261    OP_PROP,           /* 16 \p (Unicode property) */    OP_PROP,           /* 16 \p (Unicode property) */
# Line 1346  enum { Line 1372  enum {
1372    OP_SCBRA,          /* 98 Start of capturing bracket, check empty */    OP_SCBRA,          /* 98 Start of capturing bracket, check empty */
1373    OP_SCOND,          /* 99 Conditional group, check empty */    OP_SCOND,          /* 99 Conditional group, check empty */
1374    
1375      /* The next two pairs must (respectively) be kept together. */
1376    
1377    OP_CREF,           /* 100 Used to hold a capture number as condition */    OP_CREF,           /* 100 Used to hold a capture number as condition */
1378    OP_RREF,           /* 101 Used to hold a recursion number as condition */    OP_NCREF,          /* 101 Same, but generaged by a name reference*/
1379    OP_DEF,            /* 102 The DEFINE condition */    OP_RREF,           /* 102 Used to hold a recursion number as condition */
1380      OP_NRREF,          /* 103 Same, but generaged by a name reference*/
1381      OP_DEF,            /* 104 The DEFINE condition */
1382    
1383    OP_BRAZERO,        /* 103 These two must remain together and in this */    OP_BRAZERO,        /* 105 These two must remain together and in this */
1384    OP_BRAMINZERO,     /* 104 order. */    OP_BRAMINZERO,     /* 106 order. */
1385    
1386    /* These are backtracking control verbs */    /* These are backtracking control verbs */
1387    
1388    OP_PRUNE,          /* 105 */    OP_MARK,           /* 107 always has an argument */
1389    OP_SKIP,           /* 106 */    OP_PRUNE,          /* 108 */
1390    OP_THEN,           /* 107 */    OP_PRUNE_ARG,      /* 109 same, but with argument */
1391    OP_COMMIT,         /* 108 */    OP_SKIP,           /* 110 */
1392      OP_SKIP_ARG,       /* 111 same, but with argument */
1393      OP_THEN,           /* 112 */
1394      OP_THEN_ARG,       /* 113 same, but with argument */
1395      OP_COMMIT,         /* 114 */
1396    
1397    /* These are forced failure and success verbs */    /* These are forced failure and success verbs */
1398    
1399    OP_FAIL,           /* 109 */    OP_FAIL,           /* 115 */
1400    OP_ACCEPT,         /* 110 */    OP_ACCEPT,         /* 116 */
1401    OP_CLOSE,          /* 111 Used before OP_ACCEPT to close open captures */    OP_CLOSE,          /* 117 Used before OP_ACCEPT to close open captures */
1402    
1403    /* This is used to skip a subpattern with a {0} quantifier */    /* This is used to skip a subpattern with a {0} quantifier */
1404    
1405    OP_SKIPZERO        /* 112 */    OP_SKIPZERO,       /* 118 */
1406    
1407      /* This is not an opcode, but is used to check that tables indexed by opcode
1408      are the correct length, in order to catch updating errors - there have been
1409      some in the past. */
1410    
1411      OP_TABLE_LENGTH
1412  };  };
1413    
1414    /* *** NOTE NOTE NOTE *** Whenever the list above is updated, the two macro
1415    definitions that follow must also be updated to match. There are also tables
1416    called "coptable" and "poptable" in pcre_dfa_exec.c that must be updated. */
1417    
1418    
1419  /* 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
1420  for debugging. The macro is referenced only in pcre_printint.c. */  for debugging. The macro is referenced only in pcre_printint.c. */
# Line 1392  for debugging. The macro is referenced o Line 1436  for debugging. The macro is referenced o
1436    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \
1437    "AssertB", "AssertB not", "Reverse",                            \    "AssertB", "AssertB not", "Reverse",                            \
1438    "Once", "Bra", "CBra", "Cond", "SBra", "SCBra", "SCond",        \    "Once", "Bra", "CBra", "Cond", "SBra", "SCBra", "SCond",        \
1439    "Cond ref", "Cond rec", "Cond def", "Brazero", "Braminzero",    \    "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def",   \
1440    "*PRUNE", "*SKIP", "*THEN", "*COMMIT", "*FAIL", "*ACCEPT",      \    "Brazero", "Braminzero",                                        \
1441      "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \
1442      "*THEN", "*THEN", "*COMMIT", "*FAIL", "*ACCEPT",                \
1443    "Close", "Skip zero"    "Close", "Skip zero"
1444    
1445    
# Line 1411  in UTF-8 mode. The code that uses this t Line 1457  in UTF-8 mode. The code that uses this t
1457    1, 1, 1, 1, 1,                 /* \A, \G, \K, \B, \b                     */ \    1, 1, 1, 1, 1,                 /* \A, \G, \K, \B, \b                     */ \
1458    1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \    1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */ \
1459    1, 1, 1,                       /* Any, AllAny, Anybyte                   */ \    1, 1, 1,                       /* Any, AllAny, Anybyte                   */ \
1460    3, 3, 1,                       /* NOTPROP, PROP, EXTUNI                  */ \    3, 3,                          /* \P, \p                                 */ \
1461    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
1462      1,                             /* \X                                     */ \
1463    1, 1, 2, 1, 1,                 /* \Z, \z, Opt, ^, $                      */ \    1, 1, 2, 1, 1,                 /* \Z, \z, Opt, ^, $                      */ \
1464    2,                             /* Char  - the minimum length             */ \    2,                             /* Char  - the minimum length             */ \
1465    2,                             /* Charnc  - the minimum length           */ \    2,                             /* Charnc  - the minimum length           */ \
# Line 1454  in UTF-8 mode. The code that uses this t Line 1501  in UTF-8 mode. The code that uses this t
1501    1+LINK_SIZE,                   /* SBRA                                   */ \    1+LINK_SIZE,                   /* SBRA                                   */ \
1502    3+LINK_SIZE,                   /* SCBRA                                  */ \    3+LINK_SIZE,                   /* SCBRA                                  */ \
1503    1+LINK_SIZE,                   /* SCOND                                  */ \    1+LINK_SIZE,                   /* SCOND                                  */ \
1504    3,                             /* CREF                                   */ \    3, 3,                          /* CREF, NCREF                            */ \
1505    3,                             /* RREF                                   */ \    3, 3,                          /* RREF, NRREF                            */ \
1506    1,                             /* DEF                                    */ \    1,                             /* DEF                                    */ \
1507    1, 1,                          /* BRAZERO, BRAMINZERO                    */ \    1, 1,                          /* BRAZERO, BRAMINZERO                    */ \
1508    1, 1, 1, 1,                    /* PRUNE, SKIP, THEN, COMMIT,             */ \    3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG,                */ \
1509    1, 1, 3, 1                     /* FAIL, ACCEPT, CLOSE, SKIPZERO          */    1, 3, 1, 3,                    /* SKIP, SKIP_ARG, THEN, THEN_ARG,        */ \
1510      1, 1, 1, 3, 1                  /* COMMIT, FAIL, ACCEPT, CLOSE, SKIPZERO  */
1511    
1512    
1513  /* 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"
1514    condition. */
1515    
1516  #define RREF_ANY  0xffff  #define RREF_ANY  0xffff
1517    
1518  /* 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
1519  tracked. */  easily be tracked. When a new number is added, the table called eint in
1520    pcreposix.c must be updated. */
1521    
1522  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,  ERR5,  ERR6,  ERR7,  ERR8,  ERR9,  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,  ERR5,  ERR6,  ERR7,  ERR8,  ERR9,
1523         ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,         ERR10, ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19,
# Line 1475  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4, Line 1525  enum { ERR0,  ERR1,  ERR2,  ERR3,  ERR4,
1525         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
1526         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
1527         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
1528         ERR60, ERR61, ERR62, ERR63, ERR64 };         ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERRCOUNT };
1529    
1530  /* 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
1531  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 1491  Because people can now save and re-use c Line 1541  Because people can now save and re-use c
1541  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
1542  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
1543  fields are present. Currently PCRE always sets the dummy fields to zero.  fields are present. Currently PCRE always sets the dummy fields to zero.
1544  NOTE NOTE NOTE:  NOTE NOTE NOTE
1545  */  */
1546    
1547  typedef struct real_pcre {  typedef struct real_pcre {
# Line 1518  remark (see NOTE above) about extending Line 1568  remark (see NOTE above) about extending
1568    
1569  typedef struct pcre_study_data {  typedef struct pcre_study_data {
1570    pcre_uint32 size;               /* Total that was malloced */    pcre_uint32 size;               /* Total that was malloced */
1571    pcre_uint32 options;    pcre_uint32 flags;              /* Private flags */
1572    uschar start_bits[32];    uschar start_bits[32];          /* Starting char bits */
1573      pcre_uint32 minlength;          /* Minimum subject length */
1574  } pcre_study_data;  } pcre_study_data;
1575    
1576  /* Structure for building a chain of open capturing subpatterns during  /* Structure for building a chain of open capturing subpatterns during
1577  compiling, so that instructions to close them can be compiled when (*ACCEPT) is  compiling, so that instructions to close them can be compiled when (*ACCEPT) is
1578  encountered. */  encountered. This is also used to identify subpatterns that contain recursive
1579    back references to themselves, so that they can be made atomic. */
1580    
1581  typedef struct open_capitem {  typedef struct open_capitem {
1582    struct open_capitem *next;    /* Chain link */    struct open_capitem *next;    /* Chain link */
1583    pcre_uint16 number;           /* Capture number */    pcre_uint16 number;           /* Capture number */
1584  } open_capitem;    pcre_uint16 flag;             /* Set TRUE if recursive back ref */
1585    } open_capitem;
1586    
1587  /* Structure for passing "static" information around between the functions  /* Structure for passing "static" information around between the functions
1588  doing the compiling, so that they are thread-safe. */  doing the compiling, so that they are thread-safe. */
# Line 1543  typedef struct compile_data { Line 1596  typedef struct compile_data {
1596    const uschar *start_code;     /* The start of the compiled code */    const uschar *start_code;     /* The start of the compiled code */
1597    const uschar *start_pattern;  /* The start of the pattern */    const uschar *start_pattern;  /* The start of the pattern */
1598    const uschar *end_pattern;    /* The end of the pattern */    const uschar *end_pattern;    /* The end of the pattern */
1599    open_capitem *open_caps;      /* Chain of open capture items */    open_capitem *open_caps;      /* Chain of open capture items */
1600    uschar *hwm;                  /* High watermark of workspace */    uschar *hwm;                  /* High watermark of workspace */
1601    uschar *name_table;           /* The name/number table */    uschar *name_table;           /* The name/number table */
1602    int  names_found;             /* Number of entries so far */    int  names_found;             /* Number of entries so far */
# Line 1556  typedef struct compile_data { Line 1609  typedef struct compile_data {
1609    int  external_flags;          /* External flag bits to be set */    int  external_flags;          /* External flag bits to be set */
1610    int  req_varyopt;             /* "After variable item" flag for reqbyte */    int  req_varyopt;             /* "After variable item" flag for reqbyte */
1611    BOOL had_accept;              /* (*ACCEPT) encountered */    BOOL had_accept;              /* (*ACCEPT) encountered */
1612    BOOL check_lookbehind;        /* Lookbehinds need later checking */    BOOL check_lookbehind;        /* Lookbehinds need later checking */
1613    int  nltype;                  /* Newline type */    int  nltype;                  /* Newline type */
1614    int  nllen;                   /* Newline string length */    int  nllen;                   /* Newline string length */
1615    uschar nl[4];                 /* Newline string when fixed length */    uschar nl[4];                 /* Newline string when fixed length */
# Line 1567  branches, for testing for left recursion Line 1620  branches, for testing for left recursion
1620    
1621  typedef struct branch_chain {  typedef struct branch_chain {
1622    struct branch_chain *outer;    struct branch_chain *outer;
1623    uschar *current;    uschar *current_branch;
1624  } branch_chain;  } branch_chain;
1625    
1626  /* 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 1577  typedef struct recursion_info { Line 1630  typedef struct recursion_info {
1630    struct recursion_info *prevrec; /* Previous recursion record (or NULL) */    struct recursion_info *prevrec; /* Previous recursion record (or NULL) */
1631    int group_num;                /* Number of group that was called */    int group_num;                /* Number of group that was called */
1632    const uschar *after_call;     /* "Return value": points after the call in the expr */    const uschar *after_call;     /* "Return value": points after the call in the expr */
   USPTR save_start;             /* Old value of mstart */  
1633    int *offset_save;             /* Pointer to start of saved offsets */    int *offset_save;             /* Pointer to start of saved offsets */
1634    int saved_max;                /* Number of saved offsets */    int saved_max;                /* Number of saved offsets */
1635    int offset_top;               /* Current value of offset_top */    int save_offset_top;          /* Current value of offset_top */
1636  } recursion_info;  } recursion_info;
1637    
1638  /* 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 1605  typedef struct match_data { Line 1657  typedef struct match_data {
1657    int    offset_max;            /* The maximum usable for return data */    int    offset_max;            /* The maximum usable for return data */
1658    int    nltype;                /* Newline type */    int    nltype;                /* Newline type */
1659    int    nllen;                 /* Newline string length */    int    nllen;                 /* Newline string length */
1660      int    name_count;            /* Number of names in name table */
1661      int    name_entry_size;       /* Size of entry in names table */
1662      uschar *name_table;           /* Table of names */
1663    uschar nl[4];                 /* Newline string when fixed */    uschar nl[4];                 /* Newline string when fixed */
1664    const uschar *lcc;            /* Points to lower casing table */    const uschar *lcc;            /* Points to lower casing table */
1665    const uschar *ctypes;         /* Points to table of type maps */    const uschar *ctypes;         /* Points to table of type maps */
# Line 1632  typedef struct match_data { Line 1687  typedef struct match_data {
1687    int    eptrn;                 /* Next free eptrblock */    int    eptrn;                 /* Next free eptrblock */
1688    recursion_info *recursive;    /* Linked list of recursion data */    recursion_info *recursive;    /* Linked list of recursion data */
1689    void  *callout_data;          /* To pass back to callouts */    void  *callout_data;          /* To pass back to callouts */
1690      const uschar *mark;           /* Mark pointer to pass back */
1691  } match_data;  } match_data;
1692    
1693  /* A similar structure is used for the same purpose by the DFA matching  /* A similar structure is used for the same purpose by the DFA matching
# Line 1722  extern const uschar _pcre_OP_lengths[]; Line 1778  extern const uschar _pcre_OP_lengths[];
1778  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
1779  sense, but are not part of the PCRE public API. */  sense, but are not part of the PCRE public API. */
1780    
1781  extern BOOL         _pcre_is_newline(const uschar *, int, const uschar *,  extern const uschar *_pcre_find_bracket(const uschar *, BOOL, int);
1782                        int *, BOOL);  extern BOOL          _pcre_is_newline(USPTR, int, USPTR, int *, BOOL);
1783  extern int          _pcre_ord2utf8(int, uschar *);  extern int           _pcre_ord2utf8(int, uschar *);
1784  extern real_pcre   *_pcre_try_flipped(const real_pcre *, real_pcre *,  extern real_pcre    *_pcre_try_flipped(const real_pcre *, real_pcre *,
1785                        const pcre_study_data *, pcre_study_data *);                         const pcre_study_data *, pcre_study_data *);
1786  extern int          _pcre_valid_utf8(const uschar *, int);  extern int           _pcre_valid_utf8(USPTR, int);
1787  extern BOOL         _pcre_was_newline(const uschar *, int, const uschar *,  extern BOOL          _pcre_was_newline(USPTR, int, USPTR, int *, BOOL);
1788                        int *, BOOL);  extern BOOL          _pcre_xclass(int, const uschar *);
 extern BOOL         _pcre_xclass(int, const uschar *);  
1789    
1790    
1791  /* Unicode character database (UCD) */  /* Unicode character database (UCD) */

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