/[pcre]/code/trunk/pcre_compile.c
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Diff of /code/trunk/pcre_compile.c

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revision 721 by ph10, Fri Oct 7 15:51:39 2011 UTC revision 723 by ph10, Sat Oct 8 15:55:23 2011 UTC
# Line 1506  for (;;) Line 1506  for (;;)
1506      case OP_CBRA:      case OP_CBRA:
1507      case OP_BRA:      case OP_BRA:
1508      case OP_ONCE:      case OP_ONCE:
1509        case OP_ONCE_NC:
1510      case OP_COND:      case OP_COND:
1511      d = find_fixedlength(cc + ((op == OP_CBRA)? 2:0), utf8, atend, cd);      d = find_fixedlength(cc + ((op == OP_CBRA)? 2:0), utf8, atend, cd);
1512      if (d < 0) return d;      if (d < 0) return d;
# Line 2045  for (code = first_significant_code(code Line 2046  for (code = first_significant_code(code
2046    
2047    if (c == OP_BRA  || c == OP_BRAPOS ||    if (c == OP_BRA  || c == OP_BRAPOS ||
2048        c == OP_CBRA || c == OP_CBRAPOS ||        c == OP_CBRA || c == OP_CBRAPOS ||
2049        c == OP_ONCE || c == OP_COND)        c == OP_ONCE || c == OP_ONCE_NC ||
2050          c == OP_COND)
2051      {      {
2052      BOOL empty_branch;      BOOL empty_branch;
2053      if (GET(code, 1) == 0) return TRUE;    /* Hit unclosed bracket */      if (GET(code, 1) == 0) return TRUE;    /* Hit unclosed bracket */
# Line 3142  for (;; ptr++) Line 3144  for (;; ptr++)
3144    int subfirstbyte;    int subfirstbyte;
3145    int terminator;    int terminator;
3146    int mclength;    int mclength;
3147      int tempbracount;
3148    uschar mcbuffer[8];    uschar mcbuffer[8];
3149    
3150    /* Get next byte in the pattern */    /* Get next byte in the pattern */
# Line 4840  for (;; ptr++) Line 4843  for (;; ptr++)
4843          uschar *ketcode = code - 1 - LINK_SIZE;          uschar *ketcode = code - 1 - LINK_SIZE;
4844          uschar *bracode = ketcode - GET(ketcode, 1);          uschar *bracode = ketcode - GET(ketcode, 1);
4845    
4846          if (*bracode == OP_ONCE && possessive_quantifier) *bracode = OP_BRA;          if ((*bracode == OP_ONCE || *bracode == OP_ONCE_NC) &&
4847          if (*bracode == OP_ONCE)              possessive_quantifier) *bracode = OP_BRA;
4848    
4849            if (*bracode == OP_ONCE || *bracode == OP_ONCE_NC)
4850            *ketcode = OP_KETRMAX + repeat_type;            *ketcode = OP_KETRMAX + repeat_type;
4851          else          else
4852            {            {
# Line 5906  for (;; ptr++) Line 5911  for (;; ptr++)
5911      *code = bravalue;      *code = bravalue;
5912      tempcode = code;      tempcode = code;
5913      tempreqvary = cd->req_varyopt;        /* Save value before bracket */      tempreqvary = cd->req_varyopt;        /* Save value before bracket */
5914        tempbracount = cd->bracount;          /* Save value before bracket */
5915      length_prevgroup = 0;                 /* Initialize for pre-compile phase */      length_prevgroup = 0;                 /* Initialize for pre-compile phase */
5916    
5917      if (!compile_regex(      if (!compile_regex(
# Line 5927  for (;; ptr++) Line 5933  for (;; ptr++)
5933             &length_prevgroup              /* Pre-compile phase */             &length_prevgroup              /* Pre-compile phase */
5934           ))           ))
5935        goto FAILED;        goto FAILED;
5936    
5937        /* If this was an atomic group and there are no capturing groups within it,
5938        generate OP_ONCE_NC instead of OP_ONCE. */
5939    
5940        if (bravalue == OP_ONCE && cd->bracount <= tempbracount)
5941          *code = OP_ONCE_NC;
5942    
5943      if (bravalue >= OP_ASSERT && bravalue <= OP_ASSERTBACK_NOT)      if (bravalue >= OP_ASSERT && bravalue <= OP_ASSERTBACK_NOT)
5944        cd->assert_depth -= 1;        cd->assert_depth -= 1;
# Line 6726  do { Line 6738  do {
6738    
6739     /* Other brackets */     /* Other brackets */
6740    
6741     else if (op == OP_ASSERT || op == OP_ONCE || op == OP_COND)     else if (op == OP_ASSERT || op == OP_ONCE || op == OP_ONCE_NC ||
6742                op == OP_COND)
6743       {       {
6744       if (!is_anchored(scode, bracket_map, backref_map)) return FALSE;       if (!is_anchored(scode, bracket_map, backref_map)) return FALSE;
6745       }       }
# Line 6830  do { Line 6843  do {
6843    
6844     /* Other brackets */     /* Other brackets */
6845    
6846     else if (op == OP_ASSERT || op == OP_ONCE)     else if (op == OP_ASSERT || op == OP_ONCE || op == OP_ONCE_NC)
6847       {       {
6848       if (!is_startline(scode, bracket_map, backref_map)) return FALSE;       if (!is_startline(scode, bracket_map, backref_map)) return FALSE;
6849       }       }
# Line 6900  do { Line 6913  do {
6913       case OP_SCBRAPOS:       case OP_SCBRAPOS:
6914       case OP_ASSERT:       case OP_ASSERT:
6915       case OP_ONCE:       case OP_ONCE:
6916         case OP_ONCE_NC:
6917       case OP_COND:       case OP_COND:
6918       if ((d = find_firstassertedchar(scode, op == OP_ASSERT)) < 0)       if ((d = find_firstassertedchar(scode, op == OP_ASSERT)) < 0)
6919         return -1;         return -1;
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