/[pcre]/code/trunk/pcre_internal.h
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revision 603 by ph10, Wed May 25 08:29:03 2011 UTC revision 604 by ph10, Thu Jun 2 19:04:54 2011 UTC
# Line 582  Standard C system should have one. */ Line 582  Standard C system should have one. */
582  #endif  #endif
583    
584    
 /* These are the public options that can change during matching. */  
   
 #define PCRE_IMS (PCRE_CASELESS|PCRE_MULTILINE|PCRE_DOTALL)  
   
585  /* Private flags containing information about the compiled regex. They used to  /* Private flags containing information about the compiled regex. They used to
586  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
587  are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as  are in a 16-bit flags word. From release 8.00, PCRE_NOPARTIAL is unused, as
# Line 1325  enum { Line 1321  enum {
1321    
1322    /* 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
1323    the offset from the first one is used to generate the others. */    the offset from the first one is used to generate the others. */
1324    
1325    /**** Single characters, caseful, must precede the caseless ones ****/    /**** Single characters, caseful, must precede the caseless ones ****/
1326    
1327    OP_STAR,           /* 33 The maximizing and minimizing versions of */    OP_STAR,           /* 33 The maximizing and minimizing versions of */
# Line 1345  enum { Line 1341  enum {
1341    OP_POSUPTO,        /* 45 Possessified upto, caseful */    OP_POSUPTO,        /* 45 Possessified upto, caseful */
1342    
1343    /**** Single characters, caseless, must follow the caseful ones */    /**** Single characters, caseless, must follow the caseful ones */
1344    
1345    OP_STARI,          /* 46 */    OP_STARI,          /* 46 */
1346    OP_MINSTARI,       /* 47 */    OP_MINSTARI,       /* 47 */
1347    OP_PLUSI,          /* 48 */    OP_PLUSI,          /* 48 */
# Line 1382  enum { Line 1378  enum {
1378    OP_NOTPOSUPTO,     /* 71 */    OP_NOTPOSUPTO,     /* 71 */
1379    
1380    /**** Negated single character, caseless; must follow the caseful ones ****/    /**** Negated single character, caseless; must follow the caseful ones ****/
1381    
1382    OP_NOTSTARI,       /* 72 */    OP_NOTSTARI,       /* 72 */
1383    OP_NOTMINSTARI,    /* 73 */    OP_NOTMINSTARI,    /* 73 */
1384    OP_NOTPLUSI,       /* 74 */    OP_NOTPLUSI,       /* 74 */
# Line 1400  enum { Line 1396  enum {
1396    OP_NOTPOSUPTOI,    /* 84 */    OP_NOTPOSUPTOI,    /* 84 */
1397    
1398    /**** Character types ****/    /**** Character types ****/
1399    
1400    OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */    OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */
1401    OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */    OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */
1402    OP_TYPEPLUS,       /* 87 the minimizing one second. These codes must */    OP_TYPEPLUS,       /* 87 the minimizing one second. These codes must */
# Line 1418  enum { Line 1414  enum {
1414    OP_TYPEPOSUPTO,    /* 97 */    OP_TYPEPOSUPTO,    /* 97 */
1415    
1416    /* These are used for character classes and back references; only the    /* These are used for character classes and back references; only the
1417    first six are the same as the sets above. */    first six are the same as the sets above. */
1418    
1419    OP_CRSTAR,         /* 98 The maximizing and minimizing versions of */    OP_CRSTAR,         /* 98 The maximizing and minimizing versions of */
1420    OP_CRMINSTAR,      /* 99 all these opcodes must come in pairs, with */    OP_CRMINSTAR,      /* 99 all these opcodes must come in pairs, with */
# Line 1447  enum { Line 1443  enum {
1443    OP_KET,            /* 114 End of group that doesn't have an unbounded repeat */    OP_KET,            /* 114 End of group that doesn't have an unbounded repeat */
1444    OP_KETRMAX,        /* 115 These two must remain together and in this */    OP_KETRMAX,        /* 115 These two must remain together and in this */
1445    OP_KETRMIN,        /* 116 order. They are for groups the repeat for ever. */    OP_KETRMIN,        /* 116 order. They are for groups the repeat for ever. */
1446      OP_KETRPOS,        /* 117 Possessive unlimited repeat. */
1447    
1448    /* The assertions must come before BRA, CBRA, ONCE, and COND.*/    /* The assertions must come before BRA, CBRA, ONCE, and COND.*/
1449    
1450    OP_ASSERT,         /* 117 Positive lookahead */    OP_ASSERT,         /* 118 Positive lookahead */
1451    OP_ASSERT_NOT,     /* 118 Negative lookahead */    OP_ASSERT_NOT,     /* 119 Negative lookahead */
1452    OP_ASSERTBACK,     /* 119 Positive lookbehind */    OP_ASSERTBACK,     /* 120 Positive lookbehind */
1453    OP_ASSERTBACK_NOT, /* 120 Negative lookbehind */    OP_ASSERTBACK_NOT, /* 121 Negative lookbehind */
1454    OP_REVERSE,        /* 121 Move pointer back - used in lookbehind assertions */    OP_REVERSE,        /* 122 Move pointer back - used in lookbehind assertions */
1455    
1456    /* ONCE, BRA, CBRA, and COND must come after the assertions, with ONCE first,    /* ONCE, BRA, BRAPOS, CBRA, CBRAPOS, and COND must come after the assertions,
1457    as there's a test for >= ONCE for a subpattern that isn't an assertion. */    with ONCE first, as there's a test for >= ONCE for a subpattern that isn't an
1458      assertion. The POS versions must immediately follow the non-POS versions in
1459    OP_ONCE,           /* 122 Atomic group */    each case. */
1460    OP_BRA,            /* 123 Start of non-capturing bracket */  
1461    OP_CBRA,           /* 124 Start of capturing bracket */    OP_ONCE,           /* 123 Atomic group */
1462    OP_COND,           /* 125 Conditional group */    OP_BRA,            /* 124 Start of non-capturing bracket */
1463      OP_BRAPOS,         /* 125 Ditto, with unlimited, possessive repeat */
1464      OP_CBRA,           /* 126 Start of capturing bracket */
1465      OP_CBRAPOS,        /* 127 Ditto, with unlimited, possessive repeat */
1466      OP_COND,           /* 128 Conditional group */
1467    
1468    /* These three must follow the previous three, in the same order. There's a    /* These five must follow the previous five, in the same order. There's a
1469    check for >= SBRA to distinguish the two sets. */    check for >= SBRA to distinguish the two sets. */
1470    
1471    OP_SBRA,           /* 126 Start of non-capturing bracket, check empty  */    OP_SBRA,           /* 129 Start of non-capturing bracket, check empty  */
1472    OP_SCBRA,          /* 127 Start of capturing bracket, check empty */    OP_SBRAPOS,        /* 130 Ditto, with unlimited, possessive repeat */
1473    OP_SCOND,          /* 128 Conditional group, check empty */    OP_SCBRA,          /* 131 Start of capturing bracket, check empty */
1474      OP_SCBRAPOS,       /* 132 Ditto, with unlimited, possessive repeat */
1475      OP_SCOND,          /* 133 Conditional group, check empty */
1476    
1477    /* The next two pairs must (respectively) be kept together. */    /* The next two pairs must (respectively) be kept together. */
1478    
1479    OP_CREF,           /* 129 Used to hold a capture number as condition */    OP_CREF,           /* 134 Used to hold a capture number as condition */
1480    OP_NCREF,          /* 130 Same, but generated by a name reference*/    OP_NCREF,          /* 135 Same, but generated by a name reference*/
1481    OP_RREF,           /* 131 Used to hold a recursion number as condition */    OP_RREF,           /* 136 Used to hold a recursion number as condition */
1482    OP_NRREF,          /* 132 Same, but generated by a name reference*/    OP_NRREF,          /* 137 Same, but generated by a name reference*/
1483    OP_DEF,            /* 133 The DEFINE condition */    OP_DEF,            /* 138 The DEFINE condition */
1484    
1485    OP_BRAZERO,        /* 134 These two must remain together and in this */    OP_BRAZERO,        /* 139 These two must remain together and in this */
1486    OP_BRAMINZERO,     /* 135 order. */    OP_BRAMINZERO,     /* 140 order. */
1487      OP_BRAPOSZERO,     /* 141 */
1488    
1489    /* These are backtracking control verbs */    /* These are backtracking control verbs */
1490    
1491    OP_MARK,           /* 136 always has an argument */    OP_MARK,           /* 142 always has an argument */
1492    OP_PRUNE,          /* 137 */    OP_PRUNE,          /* 143 */
1493    OP_PRUNE_ARG,      /* 138 same, but with argument */    OP_PRUNE_ARG,      /* 144 same, but with argument */
1494    OP_SKIP,           /* 139 */    OP_SKIP,           /* 145 */
1495    OP_SKIP_ARG,       /* 140 same, but with argument */    OP_SKIP_ARG,       /* 146 same, but with argument */
1496    OP_THEN,           /* 141 */    OP_THEN,           /* 147 */
1497    OP_THEN_ARG,       /* 142 same, but with argument */    OP_THEN_ARG,       /* 148 same, but with argument */
1498    OP_COMMIT,         /* 143 */    OP_COMMIT,         /* 149 */
1499    
1500    /* These are forced failure and success verbs */    /* These are forced failure and success verbs */
1501    
1502    OP_FAIL,           /* 144 */    OP_FAIL,           /* 150 */
1503    OP_ACCEPT,         /* 145 */    OP_ACCEPT,         /* 151 */
1504    OP_CLOSE,          /* 146 Used before OP_ACCEPT to close open captures */    OP_CLOSE,          /* 152 Used before OP_ACCEPT to close open captures */
1505    
1506    /* This is used to skip a subpattern with a {0} quantifier */    /* This is used to skip a subpattern with a {0} quantifier */
1507    
1508    OP_SKIPZERO,       /* 147 */    OP_SKIPZERO,       /* 153 */
1509    
1510    /* 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
1511    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 1517  called "coptable" and "poptable" in pcre Line 1521  called "coptable" and "poptable" in pcre
1521    
1522  /* 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
1523  for debugging, and some of them are only partial names. The macro is referenced  for debugging, and some of them are only partial names. The macro is referenced
1524  only in pcre_printint.c, which fills out the full names in many cases (and in  only in pcre_printint.c, which fills out the full names in many cases (and in
1525  some cases doesn't actually use these names at all). */  some cases doesn't actually use these names at all). */
1526    
1527  #define OP_NAME_LIST \  #define OP_NAME_LIST \
# Line 1543  some cases doesn't actually use these na Line 1547  some cases doesn't actually use these na
1547    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \
1548    "class", "nclass", "xclass", "Ref", "Refi",                     \    "class", "nclass", "xclass", "Ref", "Refi",                     \
1549    "Recurse", "Callout",                                           \    "Recurse", "Callout",                                           \
1550    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \    "Alt", "Ket", "KetRmax", "KetRmin", "KetRpos",                  \
1551    "AssertB", "AssertB not", "Reverse",                            \    "Assert", "Assert not", "AssertB", "AssertB not", "Reverse",    \
1552    "Once", "Bra", "CBra", "Cond", "SBra", "SCBra", "SCond",        \    "Once",                                                         \
1553      "Bra", "BraPos", "CBra", "CBraPos",                             \
1554      "Cond",                                                         \
1555      "SBra", "SBraPos", "SCBra", "SCBraPos",                         \
1556      "SCond",                                                        \
1557    "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def",   \    "Cond ref", "Cond nref", "Cond rec", "Cond nrec", "Cond def",   \
1558    "Brazero", "Braminzero",                                        \    "Brazero", "Braminzero", "Braposzero",                          \
1559    "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \    "*MARK", "*PRUNE", "*PRUNE", "*SKIP", "*SKIP",                  \
1560    "*THEN", "*THEN", "*COMMIT", "*FAIL", "*ACCEPT",                \    "*THEN", "*THEN", "*COMMIT", "*FAIL", "*ACCEPT",                \
1561    "Close", "Skip zero"    "Close", "Skip zero"
# Line 1607  in UTF-8 mode. The code that uses this t Line 1615  in UTF-8 mode. The code that uses this t
1615    1+LINK_SIZE,                   /* Ket                                    */ \    1+LINK_SIZE,                   /* Ket                                    */ \
1616    1+LINK_SIZE,                   /* KetRmax                                */ \    1+LINK_SIZE,                   /* KetRmax                                */ \
1617    1+LINK_SIZE,                   /* KetRmin                                */ \    1+LINK_SIZE,                   /* KetRmin                                */ \
1618      1+LINK_SIZE,                   /* KetRpos                                */ \
1619    1+LINK_SIZE,                   /* Assert                                 */ \    1+LINK_SIZE,                   /* Assert                                 */ \
1620    1+LINK_SIZE,                   /* Assert not                             */ \    1+LINK_SIZE,                   /* Assert not                             */ \
1621    1+LINK_SIZE,                   /* Assert behind                          */ \    1+LINK_SIZE,                   /* Assert behind                          */ \
# Line 1614  in UTF-8 mode. The code that uses this t Line 1623  in UTF-8 mode. The code that uses this t
1623    1+LINK_SIZE,                   /* Reverse                                */ \    1+LINK_SIZE,                   /* Reverse                                */ \
1624    1+LINK_SIZE,                   /* ONCE                                   */ \    1+LINK_SIZE,                   /* ONCE                                   */ \
1625    1+LINK_SIZE,                   /* BRA                                    */ \    1+LINK_SIZE,                   /* BRA                                    */ \
1626      1+LINK_SIZE,                   /* BRAPOS                                 */ \
1627    3+LINK_SIZE,                   /* CBRA                                   */ \    3+LINK_SIZE,                   /* CBRA                                   */ \
1628      3+LINK_SIZE,                   /* CBRAPOS                                */ \
1629    1+LINK_SIZE,                   /* COND                                   */ \    1+LINK_SIZE,                   /* COND                                   */ \
1630    1+LINK_SIZE,                   /* SBRA                                   */ \    1+LINK_SIZE,                   /* SBRA                                   */ \
1631      1+LINK_SIZE,                   /* SBRAPOS                                */ \
1632    3+LINK_SIZE,                   /* SCBRA                                  */ \    3+LINK_SIZE,                   /* SCBRA                                  */ \
1633      3+LINK_SIZE,                   /* SCBRAPOS                               */ \
1634    1+LINK_SIZE,                   /* SCOND                                  */ \    1+LINK_SIZE,                   /* SCOND                                  */ \
1635    3, 3,                          /* CREF, NCREF                            */ \    3, 3,                          /* CREF, NCREF                            */ \
1636    3, 3,                          /* RREF, NRREF                            */ \    3, 3,                          /* RREF, NRREF                            */ \
1637    1,                             /* DEF                                    */ \    1,                             /* DEF                                    */ \
1638    1, 1,                          /* BRAZERO, BRAMINZERO                    */ \    1, 1, 1,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */ \
1639    3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \    3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \
1640    1, 3,                          /* SKIP, SKIP_ARG                         */ \    1, 3,                          /* SKIP, SKIP_ARG                         */ \
1641    1+LINK_SIZE, 3+LINK_SIZE,      /* THEN, THEN_ARG                         */ \    1+LINK_SIZE, 3+LINK_SIZE,      /* THEN, THEN_ARG                         */ \
# Line 1803  typedef struct match_data { Line 1816  typedef struct match_data {
1816    int    end_offset_top;        /* Highwater mark at end of match */    int    end_offset_top;        /* Highwater mark at end of match */
1817    int    capture_last;          /* Most recent capture number */    int    capture_last;          /* Most recent capture number */
1818    int    start_offset;          /* The start offset value */    int    start_offset;          /* The start offset value */
1819      int    match_function_type;   /* Set for certain special calls of MATCH() */
1820    eptrblock *eptrchain;         /* Chain of eptrblocks for tail recursions */    eptrblock *eptrchain;         /* Chain of eptrblocks for tail recursions */
1821    int    eptrn;                 /* Next free eptrblock */    int    eptrn;                 /* Next free eptrblock */
1822    recursion_info *recursive;    /* Linked list of recursion data */    recursion_info *recursive;    /* Linked list of recursion data */
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