/[pcre]/code/trunk/pcre_exec.c
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revision 395 by ph10, Fri Mar 20 11:22:42 2009 UTC revision 409 by ph10, Sat Mar 28 17:10:56 2009 UTC
# Line 322  typedef struct heapframe { Line 322  typedef struct heapframe {
322    
323    /* Function arguments that may change */    /* Function arguments that may change */
324    
325    const uschar *Xeptr;    USPTR Xeptr;
326    const uschar *Xecode;    const uschar *Xecode;
327    const uschar *Xmstart;    USPTR Xmstart;
328    int Xoffset_top;    int Xoffset_top;
329    long int Xims;    long int Xims;
330    eptrblock *Xeptrb;    eptrblock *Xeptrb;
# Line 333  typedef struct heapframe { Line 333  typedef struct heapframe {
333    
334    /* Function local variables */    /* Function local variables */
335    
336    const uschar *Xcallpat;    USPTR Xcallpat;
337    const uschar *Xcharptr;  #ifdef SUPPORT_UTF8
338    const uschar *Xdata;    USPTR Xcharptr;
339    const uschar *Xnext;  #endif
340    const uschar *Xpp;    USPTR Xdata;
341    const uschar *Xprev;    USPTR Xnext;
342    const uschar *Xsaved_eptr;    USPTR Xpp;
343      USPTR Xprev;
344      USPTR Xsaved_eptr;
345    
346    recursion_info Xnew_recursive;    recursion_info Xnew_recursive;
347    
# Line 360  typedef struct heapframe { Line 362  typedef struct heapframe {
362    uschar Xocchars[8];    uschar Xocchars[8];
363  #endif  #endif
364    
365      int Xcodelink;
366    int Xctype;    int Xctype;
367    unsigned int Xfc;    unsigned int Xfc;
368    int Xfi;    int Xfi;
# Line 425  Returns:       MATCH_MATCH if matched Line 428  Returns:       MATCH_MATCH if matched
428  */  */
429    
430  static int  static int
431  match(REGISTER USPTR eptr, REGISTER const uschar *ecode, const uschar *mstart,  match(REGISTER USPTR eptr, REGISTER const uschar *ecode, USPTR mstart,
432    int offset_top, match_data *md, unsigned long int ims, eptrblock *eptrb,    int offset_top, match_data *md, unsigned long int ims, eptrblock *eptrb,
433    int flags, unsigned int rdepth)    int flags, unsigned int rdepth)
434  {  {
# Line 439  register unsigned int c;   /* Character Line 442  register unsigned int c;   /* Character
442  register BOOL utf8;        /* Local copy of UTF-8 flag for speed */  register BOOL utf8;        /* Local copy of UTF-8 flag for speed */
443    
444  BOOL minimize, possessive; /* Quantifier options */  BOOL minimize, possessive; /* Quantifier options */
445    int condcode;
446    
447  /* When recursion is not being used, all "local" variables that have to be  /* When recursion is not being used, all "local" variables that have to be
448  preserved over calls to RMATCH() are part of a "frame" which is obtained from  preserved over calls to RMATCH() are part of a "frame" which is obtained from
# Line 481  HEAP_RECURSE: Line 485  HEAP_RECURSE:
485  #define charptr            frame->Xcharptr  #define charptr            frame->Xcharptr
486  #endif  #endif
487  #define callpat            frame->Xcallpat  #define callpat            frame->Xcallpat
488    #define codelink           frame->Xcodelink
489  #define data               frame->Xdata  #define data               frame->Xdata
490  #define next               frame->Xnext  #define next               frame->Xnext
491  #define pp                 frame->Xpp  #define pp                 frame->Xpp
# Line 561  int oclength; Line 566  int oclength;
566  uschar occhars[8];  uschar occhars[8];
567  #endif  #endif
568    
569    int codelink;
570  int ctype;  int ctype;
571  int length;  int length;
572  int max;  int max;
# Line 635  for (;;) Line 641  for (;;)
641    {    {
642    minimize = possessive = FALSE;    minimize = possessive = FALSE;
643    op = *ecode;    op = *ecode;
644    
645    /* For partial matching, remember if we ever hit the end of the subject after    /* For partial matching, remember if we ever hit the end of the subject after
646    matching at least one subject character. */    matching at least one subject character. */
647    
# Line 787  for (;;) Line 793  for (;;)
793    
794      case OP_COND:      case OP_COND:
795      case OP_SCOND:      case OP_SCOND:
796        codelink= GET(ecode, 1);
797    
798      /* Because of the way auto-callout works during compile, a callout item is      /* Because of the way auto-callout works during compile, a callout item is
799      inserted between OP_COND and an assertion condition. */      inserted between OP_COND and an assertion condition. */
800    
# Line 813  for (;;) Line 821  for (;;)
821        ecode += _pcre_OP_lengths[OP_CALLOUT];        ecode += _pcre_OP_lengths[OP_CALLOUT];
822        }        }
823    
824        condcode = ecode[LINK_SIZE+1];
825    
826      /* Now see what the actual condition is */      /* Now see what the actual condition is */
827    
828      if (ecode[LINK_SIZE+1] == OP_RREF)         /* Recursion test */      if (condcode == OP_RREF)         /* Recursion test */
829        {        {
830        offset = GET2(ecode, LINK_SIZE + 2);     /* Recursion group number*/        offset = GET2(ecode, LINK_SIZE + 2);     /* Recursion group number*/
831        condition = md->recursive != NULL &&        condition = md->recursive != NULL &&
# Line 823  for (;;) Line 833  for (;;)
833        ecode += condition? 3 : GET(ecode, 1);        ecode += condition? 3 : GET(ecode, 1);
834        }        }
835    
836      else if (ecode[LINK_SIZE+1] == OP_CREF)    /* Group used test */      else if (condcode == OP_CREF)    /* Group used test */
837        {        {
838        offset = GET2(ecode, LINK_SIZE+2) << 1;  /* Doubled ref number */        offset = GET2(ecode, LINK_SIZE+2) << 1;  /* Doubled ref number */
839        condition = offset < offset_top && md->offset_vector[offset] >= 0;        condition = offset < offset_top && md->offset_vector[offset] >= 0;
840        ecode += condition? 3 : GET(ecode, 1);        ecode += condition? 3 : GET(ecode, 1);
841        }        }
842    
843      else if (ecode[LINK_SIZE+1] == OP_DEF)     /* DEFINE - always false */      else if (condcode == OP_DEF)     /* DEFINE - always false */
844        {        {
845        condition = FALSE;        condition = FALSE;
846        ecode += GET(ecode, 1);        ecode += GET(ecode, 1);
# Line 857  for (;;) Line 867  for (;;)
867        else        else
868          {          {
869          condition = FALSE;          condition = FALSE;
870          ecode += GET(ecode, 1);          ecode += codelink;
871          }          }
872        }        }
873    
# Line 1103  for (;;) Line 1113  for (;;)
1113          else if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN)          else if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN)
1114            {            {
1115            DPRINTF(("Recursion gave error %d\n", rrc));            DPRINTF(("Recursion gave error %d\n", rrc));
1116              if (new_recursive.offset_save != stacksave)
1117                (pcre_free)(new_recursive.offset_save);
1118            RRETURN(rrc);            RRETURN(rrc);
1119            }            }
1120    
# Line 1449  for (;;) Line 1461  for (;;)
1461          {          {
1462          if (eptr == md->start_subject) prev_is_word = FALSE; else          if (eptr == md->start_subject) prev_is_word = FALSE; else
1463            {            {
1464            const uschar *lastptr = eptr - 1;            USPTR lastptr = eptr - 1;
1465            while((*lastptr & 0xc0) == 0x80) lastptr--;            while((*lastptr & 0xc0) == 0x80) lastptr--;
1466            GETCHAR(c, lastptr);            GETCHAR(c, lastptr);
1467            prev_is_word = c < 256 && (md->ctypes[c] & ctype_word) != 0;            prev_is_word = c < 256 && (md->ctypes[c] & ctype_word) != 0;
# Line 4607  back the character offset. */ Line 4619  back the character offset. */
4619  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF8
4620  if (utf8 && (options & PCRE_NO_UTF8_CHECK) == 0)  if (utf8 && (options & PCRE_NO_UTF8_CHECK) == 0)
4621    {    {
4622    if (_pcre_valid_utf8((uschar *)subject, length) >= 0)    if (_pcre_valid_utf8((USPTR)subject, length) >= 0)
4623      return PCRE_ERROR_BADUTF8;      return PCRE_ERROR_BADUTF8;
4624    if (start_offset > 0 && start_offset < length)    if (start_offset > 0 && start_offset < length)
4625      {      {
4626      int tb = ((uschar *)subject)[start_offset];      int tb = ((USPTR)subject)[start_offset];
4627      if (tb > 127)      if (tb > 127)
4628        {        {
4629        tb &= 0xc0;        tb &= 0xc0;

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