/[pcre]/code/trunk/pcre_internal.h
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revision 573 by ph10, Fri Nov 19 19:29:44 2010 UTC revision 602 by ph10, Wed May 25 08:29:03 2011 UTC
# Line 615  time, run time, or study time, respectiv Line 615  time, run time, or study time, respectiv
615     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY|PCRE_UTF8| \
616     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| \
617     PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \     PCRE_DUPNAMES|PCRE_NEWLINE_BITS|PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE| \
618     PCRE_JAVASCRIPT_COMPAT|PCRE_UCP)     PCRE_JAVASCRIPT_COMPAT|PCRE_UCP|PCRE_NO_START_OPTIMIZE)
619    
620  #define PUBLIC_EXEC_OPTIONS \  #define PUBLIC_EXEC_OPTIONS \
621    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \    (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY|PCRE_NOTEMPTY_ATSTART| \
# Line 932  so that PCRE works on both ASCII and EBC Line 932  so that PCRE works on both ASCII and EBC
932    
933  #define STRING_DEFINE               "DEFINE"  #define STRING_DEFINE               "DEFINE"
934    
935  #define STRING_CR_RIGHTPAR          "CR)"  #define STRING_CR_RIGHTPAR             "CR)"
936  #define STRING_LF_RIGHTPAR          "LF)"  #define STRING_LF_RIGHTPAR             "LF)"
937  #define STRING_CRLF_RIGHTPAR        "CRLF)"  #define STRING_CRLF_RIGHTPAR           "CRLF)"
938  #define STRING_ANY_RIGHTPAR         "ANY)"  #define STRING_ANY_RIGHTPAR            "ANY)"
939  #define STRING_ANYCRLF_RIGHTPAR     "ANYCRLF)"  #define STRING_ANYCRLF_RIGHTPAR        "ANYCRLF)"
940  #define STRING_BSR_ANYCRLF_RIGHTPAR "BSR_ANYCRLF)"  #define STRING_BSR_ANYCRLF_RIGHTPAR    "BSR_ANYCRLF)"
941  #define STRING_BSR_UNICODE_RIGHTPAR "BSR_UNICODE)"  #define STRING_BSR_UNICODE_RIGHTPAR    "BSR_UNICODE)"
942  #define STRING_UTF8_RIGHTPAR        "UTF8)"  #define STRING_UTF8_RIGHTPAR           "UTF8)"
943  #define STRING_UCP_RIGHTPAR         "UCP)"  #define STRING_UCP_RIGHTPAR            "UCP)"
944    #define STRING_NO_START_OPT_RIGHTPAR   "NO_START_OPT)"
945    
946  #else  /* SUPPORT_UTF8 */  #else  /* SUPPORT_UTF8 */
947    
# Line 1186  only. */ Line 1187  only. */
1187    
1188  #define STRING_DEFINE               STR_D STR_E STR_F STR_I STR_N STR_E  #define STRING_DEFINE               STR_D STR_E STR_F STR_I STR_N STR_E
1189    
1190  #define STRING_CR_RIGHTPAR          STR_C STR_R STR_RIGHT_PARENTHESIS  #define STRING_CR_RIGHTPAR             STR_C STR_R STR_RIGHT_PARENTHESIS
1191  #define STRING_LF_RIGHTPAR          STR_L STR_F STR_RIGHT_PARENTHESIS  #define STRING_LF_RIGHTPAR             STR_L STR_F STR_RIGHT_PARENTHESIS
1192  #define STRING_CRLF_RIGHTPAR        STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS  #define STRING_CRLF_RIGHTPAR           STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1193  #define STRING_ANY_RIGHTPAR         STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS  #define STRING_ANY_RIGHTPAR            STR_A STR_N STR_Y STR_RIGHT_PARENTHESIS
1194  #define STRING_ANYCRLF_RIGHTPAR     STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS  #define STRING_ANYCRLF_RIGHTPAR        STR_A STR_N STR_Y STR_C STR_R STR_L STR_F STR_RIGHT_PARENTHESIS
1195  #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  #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
1196  #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  #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
1197  #define STRING_UTF8_RIGHTPAR        STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS  #define STRING_UTF8_RIGHTPAR           STR_U STR_T STR_F STR_8 STR_RIGHT_PARENTHESIS
1198  #define STRING_UCP_RIGHTPAR         STR_U STR_C STR_P STR_RIGHT_PARENTHESIS  #define STRING_UCP_RIGHTPAR            STR_U STR_C STR_P STR_RIGHT_PARENTHESIS
1199    #define STRING_NO_START_OPT_RIGHTPAR   STR_N STR_O STR_UNDERSCORE STR_S STR_T STR_A STR_R STR_T STR_UNDERSCORE STR_O STR_P STR_T STR_RIGHT_PARENTHESIS
1200    
1201  #endif  /* SUPPORT_UTF8 */  #endif  /* SUPPORT_UTF8 */
1202    
# Line 1297  enum { Line 1299  enum {
1299    OP_WHITESPACE,         /*  9 \s */    OP_WHITESPACE,         /*  9 \s */
1300    OP_NOT_WORDCHAR,       /* 10 \W */    OP_NOT_WORDCHAR,       /* 10 \W */
1301    OP_WORDCHAR,           /* 11 \w */    OP_WORDCHAR,           /* 11 \w */
1302    
1303    OP_ANY,            /* 12 Match any character except newline */    OP_ANY,            /* 12 Match any character except newline */
1304    OP_ALLANY,         /* 13 Match any character */    OP_ALLANY,         /* 13 Match any character */
1305    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 */
# Line 1311  enum { Line 1314  enum {
1314    OP_EODN,           /* 23 End of data or \n at end of data: \Z. */    OP_EODN,           /* 23 End of data or \n at end of data: \Z. */
1315    OP_EOD,            /* 24 End of data: \z */    OP_EOD,            /* 24 End of data: \z */
1316    
1317    OP_OPT,            /* 25 Set runtime options */    OP_CIRC,           /* 25 Start of line - not multiline */
1318    OP_CIRC,           /* 26 Start of line - varies with multiline switch */    OP_CIRCM,          /* 26 Start of line - multiline */
1319    OP_DOLL,           /* 27 End of line - varies with multiline switch */    OP_DOLL,           /* 27 End of line - not multiline */
1320    OP_CHAR,           /* 28 Match one character, casefully */    OP_DOLLM,          /* 28 End of line - multiline */
1321    OP_CHARNC,         /* 29 Match one character, caselessly */    OP_CHAR,           /* 29 Match one character, casefully */
1322    OP_NOT,            /* 30 Match one character, not the following one */    OP_CHARI,          /* 30 Match one character, caselessly */
1323      OP_NOT,            /* 31 Match one character, not the given one, casefully */
1324    OP_STAR,           /* 31 The maximizing and minimizing versions of */    OP_NOTI,           /* 32 Match one character, not the given one, caselessly */
1325    OP_MINSTAR,        /* 32 these six opcodes must come in pairs, with */  
1326    OP_PLUS,           /* 33 the minimizing one second. */    /* The following sets of 13 opcodes must always be kept in step because
1327    OP_MINPLUS,        /* 34 This first set applies to single characters.*/    the offset from the first one is used to generate the others. */
1328    OP_QUERY,          /* 35 */  
1329    OP_MINQUERY,       /* 36 */    /**** Single characters, caseful, must precede the caseless ones ****/
1330    
1331    OP_UPTO,           /* 37 From 0 to n matches */    OP_STAR,           /* 33 The maximizing and minimizing versions of */
1332    OP_MINUPTO,        /* 38 */    OP_MINSTAR,        /* 34 these six opcodes must come in pairs, with */
1333    OP_EXACT,          /* 39 Exactly n matches */    OP_PLUS,           /* 35 the minimizing one second. */
1334      OP_MINPLUS,        /* 36 */
1335    OP_POSSTAR,        /* 40 Possessified star */    OP_QUERY,          /* 37 */
1336    OP_POSPLUS,        /* 41 Possessified plus */    OP_MINQUERY,       /* 38 */
1337    OP_POSQUERY,       /* 42 Posesssified query */  
1338    OP_POSUPTO,        /* 43 Possessified upto */    OP_UPTO,           /* 39 From 0 to n matches of one character, caseful*/
1339      OP_MINUPTO,        /* 40 */
1340    OP_NOTSTAR,        /* 44 The maximizing and minimizing versions of */    OP_EXACT,          /* 41 Exactly n matches */
1341    OP_NOTMINSTAR,     /* 45 these six opcodes must come in pairs, with */  
1342    OP_NOTPLUS,        /* 46 the minimizing one second. They must be in */    OP_POSSTAR,        /* 42 Possessified star, caseful */
1343    OP_NOTMINPLUS,     /* 47 exactly the same order as those above. */    OP_POSPLUS,        /* 43 Possessified plus, caseful */
1344    OP_NOTQUERY,       /* 48 This set applies to "not" single characters. */    OP_POSQUERY,       /* 44 Posesssified query, caseful */
1345    OP_NOTMINQUERY,    /* 49 */    OP_POSUPTO,        /* 45 Possessified upto, caseful */
1346    
1347    OP_NOTUPTO,        /* 50 From 0 to n matches */    /**** Single characters, caseless, must follow the caseful ones */
1348    OP_NOTMINUPTO,     /* 51 */  
1349    OP_NOTEXACT,       /* 52 Exactly n matches */    OP_STARI,          /* 46 */
1350      OP_MINSTARI,       /* 47 */
1351    OP_NOTPOSSTAR,     /* 53 Possessified versions */    OP_PLUSI,          /* 48 */
1352    OP_NOTPOSPLUS,     /* 54 */    OP_MINPLUSI,       /* 49 */
1353    OP_NOTPOSQUERY,    /* 55 */    OP_QUERYI,         /* 50 */
1354    OP_NOTPOSUPTO,     /* 56 */    OP_MINQUERYI,      /* 51 */
1355    
1356    OP_TYPESTAR,       /* 57 The maximizing and minimizing versions of */    OP_UPTOI,          /* 52 From 0 to n matches of one character, caseless */
1357    OP_TYPEMINSTAR,    /* 58 these six opcodes must come in pairs, with */    OP_MINUPTOI,       /* 53 */
1358    OP_TYPEPLUS,       /* 59 the minimizing one second. These codes must */    OP_EXACTI,         /* 54 */
1359    OP_TYPEMINPLUS,    /* 60 be in exactly the same order as those above. */  
1360    OP_TYPEQUERY,      /* 61 This set applies to character types such as \d */    OP_POSSTARI,       /* 55 Possessified star, caseless */
1361    OP_TYPEMINQUERY,   /* 62 */    OP_POSPLUSI,       /* 56 Possessified plus, caseless */
1362      OP_POSQUERYI,      /* 57 Posesssified query, caseless */
1363    OP_TYPEUPTO,       /* 63 From 0 to n matches */    OP_POSUPTOI,       /* 58 Possessified upto, caseless */
1364    OP_TYPEMINUPTO,    /* 64 */  
1365    OP_TYPEEXACT,      /* 65 Exactly n matches */    /**** The negated ones must follow the non-negated ones, and match them ****/
1366      /**** Negated single character, caseful; must precede the caseless ones ****/
1367    OP_TYPEPOSSTAR,    /* 66 Possessified versions */  
1368    OP_TYPEPOSPLUS,    /* 67 */    OP_NOTSTAR,        /* 59 The maximizing and minimizing versions of */
1369    OP_TYPEPOSQUERY,   /* 68 */    OP_NOTMINSTAR,     /* 60 these six opcodes must come in pairs, with */
1370    OP_TYPEPOSUPTO,    /* 69 */    OP_NOTPLUS,        /* 61 the minimizing one second. They must be in */
1371      OP_NOTMINPLUS,     /* 62 exactly the same order as those above. */
1372    OP_CRSTAR,         /* 70 The maximizing and minimizing versions of */    OP_NOTQUERY,       /* 63 */
1373    OP_CRMINSTAR,      /* 71 all these opcodes must come in pairs, with */    OP_NOTMINQUERY,    /* 64 */
1374    OP_CRPLUS,         /* 72 the minimizing one second. These codes must */  
1375    OP_CRMINPLUS,      /* 73 be in exactly the same order as those above. */    OP_NOTUPTO,        /* 65 From 0 to n matches, caseful */
1376    OP_CRQUERY,        /* 74 These are for character classes and back refs */    OP_NOTMINUPTO,     /* 66 */
1377    OP_CRMINQUERY,     /* 75 */    OP_NOTEXACT,       /* 67 Exactly n matches */
1378    OP_CRRANGE,        /* 76 These are different to the three sets above. */  
1379    OP_CRMINRANGE,     /* 77 */    OP_NOTPOSSTAR,     /* 68 Possessified versions, caseful */
1380      OP_NOTPOSPLUS,     /* 69 */
1381    OP_CLASS,          /* 78 Match a character class, chars < 256 only */    OP_NOTPOSQUERY,    /* 70 */
1382    OP_NCLASS,         /* 79 Same, but the bitmap was created from a negative    OP_NOTPOSUPTO,     /* 71 */
1383                             class - the difference is relevant only when a UTF-8  
1384                             character > 255 is encountered. */    /**** Negated single character, caseless; must follow the caseful ones ****/
1385    
1386    OP_XCLASS,         /* 80 Extended class for handling UTF-8 chars within the    OP_NOTSTARI,       /* 72 */
1387                             class. This does both positive and negative. */    OP_NOTMINSTARI,    /* 73 */
1388      OP_NOTPLUSI,       /* 74 */
1389    OP_REF,            /* 81 Match a back reference */    OP_NOTMINPLUSI,    /* 75 */
1390    OP_RECURSE,        /* 82 Match a numbered subpattern (possibly recursive) */    OP_NOTQUERYI,      /* 76 */
1391    OP_CALLOUT,        /* 83 Call out to external function if provided */    OP_NOTMINQUERYI,   /* 77 */
1392    
1393    OP_ALT,            /* 84 Start of alternation */    OP_NOTUPTOI,       /* 78 From 0 to n matches, caseless */
1394    OP_KET,            /* 85 End of group that doesn't have an unbounded repeat */    OP_NOTMINUPTOI,    /* 79 */
1395    OP_KETRMAX,        /* 86 These two must remain together and in this */    OP_NOTEXACTI,      /* 80 Exactly n matches */
1396    OP_KETRMIN,        /* 87 order. They are for groups the repeat for ever. */  
1397      OP_NOTPOSSTARI,    /* 81 Possessified versions, caseless */
1398      OP_NOTPOSPLUSI,    /* 82 */
1399      OP_NOTPOSQUERYI,   /* 83 */
1400      OP_NOTPOSUPTOI,    /* 84 */
1401    
1402      /**** Character types ****/
1403    
1404      OP_TYPESTAR,       /* 85 The maximizing and minimizing versions of */
1405      OP_TYPEMINSTAR,    /* 86 these six opcodes must come in pairs, with */
1406      OP_TYPEPLUS,       /* 87 the minimizing one second. These codes must */
1407      OP_TYPEMINPLUS,    /* 88 be in exactly the same order as those above. */
1408      OP_TYPEQUERY,      /* 89 */
1409      OP_TYPEMINQUERY,   /* 90 */
1410    
1411      OP_TYPEUPTO,       /* 91 From 0 to n matches */
1412      OP_TYPEMINUPTO,    /* 92 */
1413      OP_TYPEEXACT,      /* 93 Exactly n matches */
1414    
1415      OP_TYPEPOSSTAR,    /* 94 Possessified versions */
1416      OP_TYPEPOSPLUS,    /* 95 */
1417      OP_TYPEPOSQUERY,   /* 96 */
1418      OP_TYPEPOSUPTO,    /* 97 */
1419    
1420      /* These are used for character classes and back references; only the
1421      first six are the same as the sets above. */
1422    
1423      OP_CRSTAR,         /* 98 The maximizing and minimizing versions of */
1424      OP_CRMINSTAR,      /* 99 all these opcodes must come in pairs, with */
1425      OP_CRPLUS,         /* 100 the minimizing one second. These codes must */
1426      OP_CRMINPLUS,      /* 101 be in exactly the same order as those above. */
1427      OP_CRQUERY,        /* 102 */
1428      OP_CRMINQUERY,     /* 103 */
1429    
1430      OP_CRRANGE,        /* 104 These are different to the three sets above. */
1431      OP_CRMINRANGE,     /* 105 */
1432    
1433      /* End of quantifier opcodes */
1434    
1435      OP_CLASS,          /* 106 Match a character class, chars < 256 only */
1436      OP_NCLASS,         /* 107 Same, but the bitmap was created from a negative
1437                                  class - the difference is relevant only when a
1438                                  UTF-8 character > 255 is encountered. */
1439      OP_XCLASS,         /* 108 Extended class for handling UTF-8 chars within the
1440                                  class. This does both positive and negative. */
1441      OP_REF,            /* 109 Match a back reference, casefully */
1442      OP_REFI,           /* 110 Match a back reference, caselessly */
1443      OP_RECURSE,        /* 111 Match a numbered subpattern (possibly recursive) */
1444      OP_CALLOUT,        /* 112 Call out to external function if provided */
1445    
1446      OP_ALT,            /* 113 Start of alternation */
1447      OP_KET,            /* 114 End of group that doesn't have an unbounded repeat */
1448      OP_KETRMAX,        /* 115 These two must remain together and in this */
1449      OP_KETRMIN,        /* 116 order. They are for groups the repeat for ever. */
1450    
1451    /* The assertions must come before BRA, CBRA, ONCE, and COND.*/    /* The assertions must come before BRA, CBRA, ONCE, and COND.*/
1452    
1453    OP_ASSERT,         /* 88 Positive lookahead */    OP_ASSERT,         /* 117 Positive lookahead */
1454    OP_ASSERT_NOT,     /* 89 Negative lookahead */    OP_ASSERT_NOT,     /* 118 Negative lookahead */
1455    OP_ASSERTBACK,     /* 90 Positive lookbehind */    OP_ASSERTBACK,     /* 119 Positive lookbehind */
1456    OP_ASSERTBACK_NOT, /* 91 Negative lookbehind */    OP_ASSERTBACK_NOT, /* 120 Negative lookbehind */
1457    OP_REVERSE,        /* 92 Move pointer back - used in lookbehind assertions */    OP_REVERSE,        /* 121 Move pointer back - used in lookbehind assertions */
1458    
1459    /* ONCE, BRA, CBRA, and COND must come after the assertions, with ONCE first,    /* ONCE, BRA, CBRA, and COND must come after the assertions, with ONCE first,
1460    as there's a test for >= ONCE for a subpattern that isn't an assertion. */    as there's a test for >= ONCE for a subpattern that isn't an assertion. */
1461    
1462    OP_ONCE,           /* 93 Atomic group */    OP_ONCE,           /* 122 Atomic group */
1463    OP_BRA,            /* 94 Start of non-capturing bracket */    OP_BRA,            /* 123 Start of non-capturing bracket */
1464    OP_CBRA,           /* 95 Start of capturing bracket */    OP_CBRA,           /* 124 Start of capturing bracket */
1465    OP_COND,           /* 96 Conditional group */    OP_COND,           /* 125 Conditional group */
1466    
1467    /* These three must follow the previous three, in the same order. There's a    /* These three must follow the previous three, in the same order. There's a
1468    check for >= SBRA to distinguish the two sets. */    check for >= SBRA to distinguish the two sets. */
1469    
1470    OP_SBRA,           /* 97 Start of non-capturing bracket, check empty  */    OP_SBRA,           /* 126 Start of non-capturing bracket, check empty  */
1471    OP_SCBRA,          /* 98 Start of capturing bracket, check empty */    OP_SCBRA,          /* 127 Start of capturing bracket, check empty */
1472    OP_SCOND,          /* 99 Conditional group, check empty */    OP_SCOND,          /* 128 Conditional group, check empty */
1473    
1474    /* The next two pairs must (respectively) be kept together. */    /* The next two pairs must (respectively) be kept together. */
1475    
1476    OP_CREF,           /* 100 Used to hold a capture number as condition */    OP_CREF,           /* 129 Used to hold a capture number as condition */
1477    OP_NCREF,          /* 101 Same, but generaged by a name reference*/    OP_NCREF,          /* 130 Same, but generated by a name reference*/
1478    OP_RREF,           /* 102 Used to hold a recursion number as condition */    OP_RREF,           /* 131 Used to hold a recursion number as condition */
1479    OP_NRREF,          /* 103 Same, but generaged by a name reference*/    OP_NRREF,          /* 132 Same, but generated by a name reference*/
1480    OP_DEF,            /* 104 The DEFINE condition */    OP_DEF,            /* 133 The DEFINE condition */
1481    
1482    OP_BRAZERO,        /* 105 These two must remain together and in this */    OP_BRAZERO,        /* 134 These two must remain together and in this */
1483    OP_BRAMINZERO,     /* 106 order. */    OP_BRAMINZERO,     /* 135 order. */
1484    
1485    /* These are backtracking control verbs */    /* These are backtracking control verbs */
1486    
1487    OP_MARK,           /* 107 always has an argument */    OP_MARK,           /* 136 always has an argument */
1488    OP_PRUNE,          /* 108 */    OP_PRUNE,          /* 137 */
1489    OP_PRUNE_ARG,      /* 109 same, but with argument */    OP_PRUNE_ARG,      /* 138 same, but with argument */
1490    OP_SKIP,           /* 110 */    OP_SKIP,           /* 139 */
1491    OP_SKIP_ARG,       /* 111 same, but with argument */    OP_SKIP_ARG,       /* 140 same, but with argument */
1492    OP_THEN,           /* 112 */    OP_THEN,           /* 141 */
1493    OP_THEN_ARG,       /* 113 same, but with argument */    OP_THEN_ARG,       /* 142 same, but with argument */
1494    OP_COMMIT,         /* 114 */    OP_COMMIT,         /* 143 */
1495    
1496    /* These are forced failure and success verbs */    /* These are forced failure and success verbs */
1497    
1498    OP_FAIL,           /* 115 */    OP_FAIL,           /* 144 */
1499    OP_ACCEPT,         /* 116 */    OP_ACCEPT,         /* 145 */
1500    OP_CLOSE,          /* 117 Used before OP_ACCEPT to close open captures */    OP_CLOSE,          /* 146 Used before OP_ACCEPT to close open captures */
1501    
1502    /* This is used to skip a subpattern with a {0} quantifier */    /* This is used to skip a subpattern with a {0} quantifier */
1503    
1504    OP_SKIPZERO,       /* 118 */    OP_SKIPZERO,       /* 147 */
1505    
1506    /* 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
1507    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 1460  called "coptable" and "poptable" in pcre Line 1516  called "coptable" and "poptable" in pcre
1516    
1517    
1518  /* 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
1519  for debugging. The macro is referenced only in pcre_printint.c. */  for debugging, and some of them are only partial names. The macro is referenced
1520    only in pcre_printint.c, which fills out the full names in many cases (and in
1521    some cases doesn't actually use these names at all). */
1522    
1523  #define OP_NAME_LIST \  #define OP_NAME_LIST \
1524    "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \    "End", "\\A", "\\G", "\\K", "\\B", "\\b", "\\D", "\\d",         \
1525    "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \    "\\S", "\\s", "\\W", "\\w", "Any", "AllAny", "Anybyte",         \
1526    "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \    "notprop", "prop", "\\R", "\\H", "\\h", "\\V", "\\v",           \
1527    "extuni",  "\\Z", "\\z",                                        \    "extuni",  "\\Z", "\\z",                                        \
1528    "Opt", "^", "$", "char", "charnc", "not",                       \    "^", "^", "$", "$", "char", "chari", "not", "noti",             \
1529    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??",                                \
1530      "{", "{", "{",                                                  \
1531    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
1532    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??",                                \
1533      "{", "{", "{",                                                  \
1534      "*+","++", "?+", "{",                                           \
1535      "*", "*?", "+", "+?", "?", "??",                                \
1536      "{", "{", "{",                                                  \
1537      "*+","++", "?+", "{",                                           \
1538      "*", "*?", "+", "+?", "?", "??",                                \
1539      "{", "{", "{",                                                  \
1540    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
1541    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \    "*", "*?", "+", "+?", "?", "??", "{", "{", "{",                 \
1542    "*+","++", "?+", "{",                                           \    "*+","++", "?+", "{",                                           \
1543    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \    "*", "*?", "+", "+?", "?", "??", "{", "{",                      \
1544    "class", "nclass", "xclass", "Ref", "Recurse", "Callout",       \    "class", "nclass", "xclass", "Ref", "Refi",                     \
1545      "Recurse", "Callout",                                           \
1546    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \    "Alt", "Ket", "KetRmax", "KetRmin", "Assert", "Assert not",     \
1547    "AssertB", "AssertB not", "Reverse",                            \    "AssertB", "AssertB not", "Reverse",                            \
1548    "Once", "Bra", "CBra", "Cond", "SBra", "SCBra", "SCond",        \    "Once", "Bra", "CBra", "Cond", "SBra", "SCBra", "SCond",        \
# Line 1503  in UTF-8 mode. The code that uses this t Line 1570  in UTF-8 mode. The code that uses this t
1570    3, 3,                          /* \P, \p                                 */ \    3, 3,                          /* \P, \p                                 */ \
1571    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \    1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */ \
1572    1,                             /* \X                                     */ \    1,                             /* \X                                     */ \
1573    1, 1, 2, 1, 1,                 /* \Z, \z, Opt, ^, $                      */ \    1, 1, 1, 1, 1, 1,              /* \Z, \z, ^, ^M, $, $M                   */ \
1574    2,                             /* Char  - the minimum length             */ \    2,                             /* Char  - the minimum length             */ \
1575    2,                             /* Charnc  - the minimum length           */ \    2,                             /* Chari  - the minimum length            */ \
1576    2,                             /* not                                    */ \    2,                             /* not                                    */ \
1577    /* Positive single-char repeats                            ** These are  */ \    2,                             /* noti                                   */ \
1578    2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??      ** minima in  */ \    /* Positive single-char repeats                             ** These are */ \
1579    4, 4, 4,                       /* upto, minupto, exact     ** UTF-8 mode */ \    2, 2, 2, 2, 2, 2,              /* *, *?, +, +?, ?, ??       ** minima in */ \
1580      4, 4, 4,                       /* upto, minupto, exact      ** mode      */ \
1581    2, 2, 2, 4,                    /* *+, ++, ?+, upto+                      */ \    2, 2, 2, 4,                    /* *+, ++, ?+, upto+                      */ \
1582      2, 2, 2, 2, 2, 2,              /* *I, *?I, +I, +?I, ?I, ??I ** UTF-8     */ \
1583      4, 4, 4,                       /* upto I, minupto I, exact I             */ \
1584      2, 2, 2, 4,                    /* *+I, ++I, ?+I, upto+I                  */ \
1585    /* Negative single-char repeats - only for chars < 256                   */ \    /* Negative single-char repeats - only for chars < 256                   */ \
1586    2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \    2, 2, 2, 2, 2, 2,              /* NOT *, *?, +, +?, ?, ??                */ \
1587    4, 4, 4,                       /* NOT upto, minupto, exact               */ \    4, 4, 4,                       /* NOT upto, minupto, exact               */ \
1588    2, 2, 2, 4,                    /* Possessive *, +, ?, upto               */ \    2, 2, 2, 4,                    /* Possessive NOT *, +, ?, upto           */ \
1589      2, 2, 2, 2, 2, 2,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */ \
1590      4, 4, 4,                       /* NOT upto I, minupto I, exact I         */ \
1591      2, 2, 2, 4,                    /* Possessive NOT *I, +I, ?I, upto I      */ \
1592    /* Positive type repeats                                                 */ \    /* Positive type repeats                                                 */ \
1593    2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \    2, 2, 2, 2, 2, 2,              /* Type *, *?, +, +?, ?, ??               */ \
1594    4, 4, 4,                       /* Type upto, minupto, exact              */ \    4, 4, 4,                       /* Type upto, minupto, exact              */ \
# Line 1526  in UTF-8 mode. The code that uses this t Line 1600  in UTF-8 mode. The code that uses this t
1600   33,                             /* NCLASS                                 */ \   33,                             /* NCLASS                                 */ \
1601    0,                             /* XCLASS - variable length               */ \    0,                             /* XCLASS - variable length               */ \
1602    3,                             /* REF                                    */ \    3,                             /* REF                                    */ \
1603      3,                             /* REFI                                   */ \
1604    1+LINK_SIZE,                   /* RECURSE                                */ \    1+LINK_SIZE,                   /* RECURSE                                */ \
1605    2+2*LINK_SIZE,                 /* CALLOUT                                */ \    2+2*LINK_SIZE,                 /* CALLOUT                                */ \
1606    1+LINK_SIZE,                   /* Alt                                    */ \    1+LINK_SIZE,                   /* Alt                                    */ \
# Line 1551  in UTF-8 mode. The code that uses this t Line 1626  in UTF-8 mode. The code that uses this t
1626    3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \    3, 1, 3,                       /* MARK, PRUNE, PRUNE_ARG                 */ \
1627    1, 3,                          /* SKIP, SKIP_ARG                         */ \    1, 3,                          /* SKIP, SKIP_ARG                         */ \
1628    1+LINK_SIZE, 3+LINK_SIZE,      /* THEN, THEN_ARG                         */ \    1+LINK_SIZE, 3+LINK_SIZE,      /* THEN, THEN_ARG                         */ \
1629    1, 1, 1, 3, 1                  /* COMMIT, FAIL, ACCEPT, CLOSE, SKIPZERO  */    1, 1, 1, 3, 1                  /* COMMIT, FAIL, ACCEPT, CLOSE, SKIPZERO  */ \
   
1630    
1631  /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"  /* A magic value for OP_RREF and OP_NRREF to indicate the "any recursion"
1632  condition. */  condition. */
# Line 1569  enum { ERR0, ERR1, ERR2, ERR3, ERR4, Line 1643  enum { ERR0, ERR1, ERR2, ERR3, ERR4,
1643         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,         ERR30, ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39,
1644         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,         ERR40, ERR41, ERR42, ERR43, ERR44, ERR45, ERR46, ERR47, ERR48, ERR49,
1645         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,         ERR50, ERR51, ERR52, ERR53, ERR54, ERR55, ERR56, ERR57, ERR58, ERR59,
1646         ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERRCOUNT };         ERR60, ERR61, ERR62, ERR63, ERR64, ERR65, ERR66, ERR67, ERR68,
1647           ERRCOUNT };
1648    
1649  /* 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
1650  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 1828  extern BOOL _pcre_is_newline(US Line 1903  extern BOOL _pcre_is_newline(US
1903  extern int           _pcre_ord2utf8(int, uschar *);  extern int           _pcre_ord2utf8(int, uschar *);
1904  extern real_pcre    *_pcre_try_flipped(const real_pcre *, real_pcre *,  extern real_pcre    *_pcre_try_flipped(const real_pcre *, real_pcre *,
1905                         const pcre_study_data *, pcre_study_data *);                         const pcre_study_data *, pcre_study_data *);
1906  extern int           _pcre_valid_utf8(USPTR, int);  extern int           _pcre_valid_utf8(USPTR, int, int *);
1907  extern BOOL          _pcre_was_newline(USPTR, int, USPTR, int *, BOOL);  extern BOOL          _pcre_was_newline(USPTR, int, USPTR, int *, BOOL);
1908  extern BOOL          _pcre_xclass(int, const uschar *);  extern BOOL          _pcre_xclass(int, const uschar *);
1909    
# Line 1852  extern const int _pcre_ucp_genty Line 1927  extern const int _pcre_ucp_genty
1927  #define UCD_BLOCK_SIZE 128  #define UCD_BLOCK_SIZE 128
1928  #define GET_UCD(ch) (_pcre_ucd_records + \  #define GET_UCD(ch) (_pcre_ucd_records + \
1929          _pcre_ucd_stage2[_pcre_ucd_stage1[(ch) / UCD_BLOCK_SIZE] * \          _pcre_ucd_stage2[_pcre_ucd_stage1[(ch) / UCD_BLOCK_SIZE] * \
1930          UCD_BLOCK_SIZE + ch % UCD_BLOCK_SIZE])          UCD_BLOCK_SIZE + (ch) % UCD_BLOCK_SIZE])
1931    
1932  #define UCD_CHARTYPE(ch)  GET_UCD(ch)->chartype  #define UCD_CHARTYPE(ch)  GET_UCD(ch)->chartype
1933  #define UCD_SCRIPT(ch)    GET_UCD(ch)->script  #define UCD_SCRIPT(ch)    GET_UCD(ch)->script

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