/[pcre]/code/trunk/pcre_exec.c

Diff of /code/trunk/pcre_exec.c

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-revision 207 by ph10,
Mon Aug  6 09:32:14 2007 UTC
+revision 511 by ph10,
Mon Mar 29 09:25:38 2010 UTC
 Line 6
  and semantics are as close as possible to those of the Perl 5 language.
                         Written by Philip Hazel
-            Copyright (c) 1997-2007 University of Cambridge
+            Copyright (c) 1997-2010 University of Cambridge
  -----------------------------------------------------------------------------
  Redistribution and use in source and binary forms, with or without
 Line 43 
 pattern matching using an NFA algorithm,
  possible. There are also some static supporting functions. */
  #ifdef HAVE_CONFIG_H
- #include <config.h>
+ #include "config.h"
  #endif
  #define NLBLOCK md             /* Block containing newline information */
 Line 68 
 defined PCRE_ERROR_xxx codes, which are
  #define MATCH_MATCH        1
  #define MATCH_NOMATCH      0
+ /* Special internal returns from the match() function. Make them sufficiently
+ negative to avoid the external error codes. */
+ #define MATCH_ACCEPT       (-999)
+ #define MATCH_COMMIT       (-998)
+ #define MATCH_PRUNE        (-997)
+ #define MATCH_SKIP         (-996)
+ #define MATCH_SKIP_ARG     (-995)
+ #define MATCH_THEN         (-994)
+ /* This is a convenience macro for code that occurs many times. */
+ #define MRRETURN(ra) \
+   { \
+   md->mark = markptr; \
+   RRETURN(ra); \
+   }
  /* Maximum number of ints of offset to save on the stack for recursive calls.
  If the offset vector is bigger, malloc is used. This should be a multiple of 3,
  because the offset vector is always a multiple of 3 long. */
-Line 81 
 static const char rep_max[] = { 0, 0, 0,
+Line 99 
 static const char rep_max[] = { 0, 0, 0,
- #ifdef DEBUG
+ #ifdef PCRE_DEBUG
  /*************************************************
  *        Debugging function to print chars       *
  *************************************************/
-Line 133 
 match_ref(int offset, register USPTR ept
+Line 151 
 match_ref(int offset, register USPTR ept
  {
  USPTR p = md->start_subject + md->offset_vector[offset];
- #ifdef DEBUG
+ #ifdef PCRE_DEBUG
  if (eptr >= md->end_subject)
    printf("matching subject <null>");
  else
-Line 150 
 printf("\n");
+Line 168 
 printf("\n");
  if (length > md->end_subject - eptr) return FALSE;
- /* Separate the caselesss case for speed */
+ /* Separate the caseless case for speed. In UTF-8 mode we can only do this
+ properly if Unicode properties are supported. Otherwise, we can check only
+ ASCII characters. */
  if ((ims & PCRE_CASELESS) != 0)
    {
+ #ifdef SUPPORT_UTF8
+ #ifdef SUPPORT_UCP
+   if (md->utf8)
+     {
+     USPTR endptr = eptr + length;
+     while (eptr < endptr)
+       {
+       int c, d;
+       GETCHARINC(c, eptr);
+       GETCHARINC(d, p);
+       if (c != d && c != UCD_OTHERCASE(d)) return FALSE;
+       }
+     }
+   else
+ #endif
+ #endif
+   /* The same code works when not in UTF-8 mode and in UTF-8 mode when there
+   is no UCP support. */
    while (length-- > 0)
-     if (md->lcc[*p++] != md->lcc[*eptr++]) return FALSE;
+     { if (md->lcc[*p++] != md->lcc[*eptr++]) return FALSE; }
    }
+ /* In the caseful case, we can just compare the bytes, whether or not we
+ are in UTF-8 mode. */
  else
    { while (length-- > 0) if (*p++ != *eptr++) return FALSE; }
-Line 203 
 variable instead of being passed in the
+Line 247 
 variable instead of being passed in the
  ****************************************************************************
  ***************************************************************************/
+ /* Numbers for RMATCH calls. When this list is changed, the code at HEAP_RETURN
- /* Numbers for RMATCH calls */
+ below must be updated in sync.  */
  enum { RM1=1, RM2,  RM3,  RM4,  RM5,  RM6,  RM7,  RM8,  RM9,  RM10,
         RM11,  RM12, RM13, RM14, RM15, RM16, RM17, RM18, RM19, RM20,
         RM21,  RM22, RM23, RM24, RM25, RM26, RM27, RM28, RM29, RM30,
         RM31,  RM32, RM33, RM34, RM35, RM36, RM37, RM38, RM39, RM40,
-        RM41,  RM42, RM43, RM44, RM45, RM46, RM47, RM48, RM49, RM50 };
+        RM41,  RM42, RM43, RM44, RM45, RM46, RM47, RM48, RM49, RM50,
+        RM51,  RM52, RM53, RM54 };
  /* These versions of the macros use the stack, as normal. There are debugging
  versions and production versions. Note that the "rw" argument of RMATCH isn't
- actuall used in this definition. */
+ actually used in this definition. */
  #ifndef NO_RECURSE
  #define REGISTER register
- #ifdef DEBUG
+ #ifdef PCRE_DEBUG
  #define RMATCH(ra,rb,rc,rd,re,rf,rg,rw) \
    { \
    printf("match() called in line %d\n", __LINE__); \
-   rrc = match(ra,rb,mstart,rc,rd,re,rf,rg,rdepth+1); \
+   rrc = match(ra,rb,mstart,markptr,rc,rd,re,rf,rg,rdepth+1); \
    printf("to line %d\n", __LINE__); \
    }
  #define RRETURN(ra) \
-Line 234 
 actuall used in this definition. */
+Line 278 
 actuall used in this definition. */
    }
  #else
  #define RMATCH(ra,rb,rc,rd,re,rf,rg,rw) \
-   rrc = match(ra,rb,mstart,rc,rd,re,rf,rg,rdepth+1)
+   rrc = match(ra,rb,mstart,markptr,rc,rd,re,rf,rg,rdepth+1)
  #define RRETURN(ra) return ra
  #endif
-Line 254 
 argument of match(), which never changes
+Line 298 
 argument of match(), which never changes
    newframe->Xeptr = ra;\
    newframe->Xecode = rb;\
    newframe->Xmstart = mstart;\
+   newframe->Xmarkptr = markptr;\
    newframe->Xoffset_top = rc;\
    newframe->Xims = re;\
    newframe->Xeptrb = rf;\
-Line 288 
 typedef struct heapframe {
+Line 333 
 typedef struct heapframe {
    /* Function arguments that may change */
-   const uschar *Xeptr;
+   USPTR Xeptr;
    const uschar *Xecode;
-   const uschar *Xmstart;
+   USPTR Xmstart;
+   USPTR Xmarkptr;
    int Xoffset_top;
    long int Xims;
    eptrblock *Xeptrb;
-Line 299 
 typedef struct heapframe {
+Line 345 
 typedef struct heapframe {
    /* Function local variables */
-   const uschar *Xcallpat;
+   USPTR Xcallpat;
-   const uschar *Xcharptr;
+ #ifdef SUPPORT_UTF8
-   const uschar *Xdata;
+   USPTR Xcharptr;
-   const uschar *Xnext;
+ #endif
-   const uschar *Xpp;
+   USPTR Xdata;
-   const uschar *Xprev;
+   USPTR Xnext;
-   const uschar *Xsaved_eptr;
+   USPTR Xpp;
+   USPTR Xprev;
+   USPTR Xsaved_eptr;
    recursion_info Xnew_recursive;
-Line 326 
 typedef struct heapframe {
+Line 374 
 typedef struct heapframe {
    uschar Xocchars[8];
  #endif
+   int Xcodelink;
    int Xctype;
    unsigned int Xfc;
    int Xfi;
-Line 361 
 typedef struct heapframe {
+Line 410 
 typedef struct heapframe {
  /* This function is called recursively in many circumstances. Whenever it
  returns a negative (error) response, the outer incarnation must also return the
- same response.
+ same response. */
+ /* These macros pack up tests that are used for partial matching, and which
+ appears several times in the code. We set the "hit end" flag if the pointer is
+ at the end of the subject and also past the start of the subject (i.e.
+ something has been matched). For hard partial matching, we then return
+ immediately. The second one is used when we already know we are past the end of
+ the subject. */
- Performance note: It might be tempting to extract commonly used fields from the
+ #define CHECK_PARTIAL()\
- md structure (e.g. utf8, end_subject) into individual variables to improve
+   if (md->partial != 0 && eptr >= md->end_subject && eptr > mstart)\
+     {\
+     md->hitend = TRUE;\
+     if (md->partial > 1) MRRETURN(PCRE_ERROR_PARTIAL);\
+     }
+ #define SCHECK_PARTIAL()\
+   if (md->partial != 0 && eptr > mstart)\
+     {\
+     md->hitend = TRUE;\
+     if (md->partial > 1) MRRETURN(PCRE_ERROR_PARTIAL);\
+     }
+ /* Performance note: It might be tempting to extract commonly used fields from
+ the md structure (e.g. utf8, end_subject) into individual variables to improve
  performance. Tests using gcc on a SPARC disproved this; in the first case, it
  made performance worse.
-Line 373 
 Arguments:
+Line 444 
 Arguments:
     ecode       pointer to current position in compiled code
     mstart      pointer to the current match start position (can be modified
                   by encountering \K)
+    markptr     pointer to the most recent MARK name, or NULL
     offset_top  current top pointer
     md          pointer to "static" info for the match
     ims         current /i, /m, and /s options
-Line 386 
 Arguments:
+Line 458 
 Arguments:
  Returns:       MATCH_MATCH if matched            )  these values are >= 0
                 MATCH_NOMATCH if failed to match  )
+                a negative MATCH_xxx value for PRUNE, SKIP, etc
                 a negative PCRE_ERROR_xxx value if aborted by an error condition
                   (e.g. stopped by repeated call or recursion limit)
  */
  static int
- match(REGISTER USPTR eptr, REGISTER const uschar *ecode, const uschar *mstart,
+ match(REGISTER USPTR eptr, REGISTER const uschar *ecode, USPTR mstart,
-   int offset_top, match_data *md, unsigned long int ims, eptrblock *eptrb,
+   const uschar *markptr, int offset_top, match_data *md, unsigned long int ims,
-   int flags, unsigned int rdepth)
+   eptrblock *eptrb, int flags, unsigned int rdepth)
  {
  /* These variables do not need to be preserved over recursion in this function,
  so they can be ordinary variables in all cases. Mark some of them with
-Line 405 
 register unsigned int c;   /* Character
+Line 478 
 register unsigned int c;   /* Character
  register BOOL utf8;        /* Local copy of UTF-8 flag for speed */
  BOOL minimize, possessive; /* Quantifier options */
+ int condcode;
  /* When recursion is not being used, all "local" variables that have to be
  preserved over calls to RMATCH() are part of a "frame" which is obtained from
-Line 420 
 frame->Xprevframe = NULL;            /*
+Line 494 
 frame->Xprevframe = NULL;            /*
  frame->Xeptr = eptr;
  frame->Xecode = ecode;
  frame->Xmstart = mstart;
+ frame->Xmarkptr = markptr;
  frame->Xoffset_top = offset_top;
  frame->Xims = ims;
  frame->Xeptrb = eptrb;
-Line 435 
 HEAP_RECURSE:
+Line 510 
 HEAP_RECURSE:
  #define eptr               frame->Xeptr
  #define ecode              frame->Xecode
  #define mstart             frame->Xmstart
+ #define markptr            frame->Xmarkptr
  #define offset_top         frame->Xoffset_top
  #define ims                frame->Xims
  #define eptrb              frame->Xeptrb
-Line 447 
 HEAP_RECURSE:
+Line 523 
 HEAP_RECURSE:
  #define charptr            frame->Xcharptr
  #endif
  #define callpat            frame->Xcallpat
+ #define codelink           frame->Xcodelink
  #define data               frame->Xdata
  #define next               frame->Xnext
  #define pp                 frame->Xpp
-Line 527 
 int oclength;
+Line 604 
 int oclength;
  uschar occhars[8];
  #endif
+ int codelink;
  int ctype;
  int length;
  int max;
-Line 560 
 TAIL_RECURSE:
+Line 638 
 TAIL_RECURSE:
  /* OK, now we can get on with the real code of the function. Recursive calls
  are specified by the macro RMATCH and RRETURN is used to return. When
  NO_RECURSE is *not* defined, these just turn into a recursive call to match()
- and a "return", respectively (possibly with some debugging if DEBUG is
+ and a "return", respectively (possibly with some debugging if PCRE_DEBUG is
  defined). However, RMATCH isn't like a function call because it's quite a
  complicated macro. It has to be used in one particular way. This shouldn't,
  however, impact performance when true recursion is being used. */
-Line 602 
 for (;;)
+Line 680 
 for (;;)
    minimize = possessive = FALSE;
    op = *ecode;
-   /* For partial matching, remember if we ever hit the end of the subject after
-   matching at least one subject character. */
-   if (md->partial &&
-       eptr >= md->end_subject &&
-       eptr > mstart)
-     md->hitend = TRUE;
    switch(op)
      {
+     case OP_MARK:
+     markptr = ecode + 2;
+     RMATCH(eptr, ecode + _pcre_OP_lengths[*ecode] + ecode[1], offset_top, md,
+       ims, eptrb, flags, RM51);
+     /* A return of MATCH_SKIP_ARG means that matching failed at SKIP with an
+     argument, and we must check whether that argument matches this MARK's
+     argument. It is passed back in md->start_match_ptr (an overloading of that
+     variable). If it does match, we reset that variable to the current subject
+     position and return MATCH_SKIP. Otherwise, pass back the return code
+     unaltered. */
+     if (rrc == MATCH_SKIP_ARG &&
+         strcmp((char *)markptr, (char *)(md->start_match_ptr)) == 0)
+       {
+       md->start_match_ptr = eptr;
+       RRETURN(MATCH_SKIP);
+       }
+     if (md->mark == NULL) md->mark = markptr;
+     RRETURN(rrc);
+     case OP_FAIL:
+     MRRETURN(MATCH_NOMATCH);
+     case OP_COMMIT:
+     RMATCH(eptr, ecode + _pcre_OP_lengths[*ecode], offset_top, md,
+       ims, eptrb, flags, RM52);
+     if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+     MRRETURN(MATCH_COMMIT);
+     case OP_PRUNE:
+     RMATCH(eptr, ecode + _pcre_OP_lengths[*ecode], offset_top, md,
+       ims, eptrb, flags, RM51);
+     if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+     MRRETURN(MATCH_PRUNE);
+     case OP_PRUNE_ARG:
+     RMATCH(eptr, ecode + _pcre_OP_lengths[*ecode] + ecode[1], offset_top, md,
+       ims, eptrb, flags, RM51);
+     if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+     md->mark = ecode + 2;
+     RRETURN(MATCH_PRUNE);
+     case OP_SKIP:
+     RMATCH(eptr, ecode + _pcre_OP_lengths[*ecode], offset_top, md,
+       ims, eptrb, flags, RM53);
+     if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+     md->start_match_ptr = eptr;   /* Pass back current position */
+     MRRETURN(MATCH_SKIP);
+     case OP_SKIP_ARG:
+     RMATCH(eptr, ecode + _pcre_OP_lengths[*ecode] + ecode[1], offset_top, md,
+       ims, eptrb, flags, RM53);
+     if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+     /* Pass back the current skip name by overloading md->start_match_ptr and
+     returning the special MATCH_SKIP_ARG return code. This will either be
+     caught by a matching MARK, or get to the top, where it is treated the same
+     as PRUNE. */
+     md->start_match_ptr = ecode + 2;
+     RRETURN(MATCH_SKIP_ARG);
+     case OP_THEN:
+     RMATCH(eptr, ecode + _pcre_OP_lengths[*ecode], offset_top, md,
+       ims, eptrb, flags, RM54);
+     if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+     MRRETURN(MATCH_THEN);
+     case OP_THEN_ARG:
+     RMATCH(eptr, ecode + _pcre_OP_lengths[*ecode] + ecode[1], offset_top, md,
+       ims, eptrb, flags, RM54);
+     if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+     md->mark = ecode + 2;
+     RRETURN(MATCH_THEN);
      /* Handle a capturing bracket. If there is space in the offset vector, save
      the current subject position in the working slot at the top of the vector.
      We mustn't change the current values of the data slot, because they may be
-Line 631 
 for (;;)
+Line 778 
 for (;;)
      number = GET2(ecode, 1+LINK_SIZE);
      offset = number << 1;
- #ifdef DEBUG
+ #ifdef PCRE_DEBUG
      printf("start bracket %d\n", number);
      printf("subject=");
      pchars(eptr, 16, TRUE, md);
-Line 653 
 for (;;)
+Line 800 
 for (;;)
          {
          RMATCH(eptr, ecode + _pcre_OP_lengths[*ecode], offset_top, md,
            ims, eptrb, flags, RM1);
-         if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+         if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN) RRETURN(rrc);
          md->capture_last = save_capture_last;
          ecode += GET(ecode, 1);
          }
-Line 665 
 for (;;)
+Line 812 
 for (;;)
        md->offset_vector[offset+1] = save_offset2;
        md->offset_vector[md->offset_end - number] = save_offset3;
+       if (rrc != MATCH_THEN) md->mark = markptr;
        RRETURN(MATCH_NOMATCH);
        }
-Line 704 
 for (;;)
+Line 852 
 for (;;)
          RMATCH(eptr, ecode + _pcre_OP_lengths[*ecode], offset_top, md, ims,
            eptrb, flags, RM48);
-         RRETURN(rrc);
+         if (rrc == MATCH_NOMATCH) md->mark = markptr;
+         RRETURN(rrc);
          }
        /* For non-final alternatives, continue the loop for a NOMATCH result;
-Line 712 
 for (;;)
+Line 861 
 for (;;)
        RMATCH(eptr, ecode + _pcre_OP_lengths[*ecode], offset_top, md, ims,
          eptrb, flags, RM2);
-       if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+       if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN) RRETURN(rrc);
        ecode += GET(ecode, 1);
        }
      /* Control never reaches here. */
-Line 725 
 for (;;)
+Line 874 
 for (;;)
      case OP_COND:
      case OP_SCOND:
-     if (ecode[LINK_SIZE+1] == OP_RREF)         /* Recursion test */
+     codelink= GET(ecode, 1);
+     /* Because of the way auto-callout works during compile, a callout item is
+     inserted between OP_COND and an assertion condition. */
+     if (ecode[LINK_SIZE+1] == OP_CALLOUT)
        {
-       offset = GET2(ecode, LINK_SIZE + 2);     /* Recursion group number*/
+       if (pcre_callout != NULL)
-       condition = md->recursive != NULL &&
+         {
-         (offset == RREF_ANY || offset == md->recursive->group_num);
+         pcre_callout_block cb;
-       ecode += condition? 3 : GET(ecode, 1);
+         cb.version          = 1;   /* Version 1 of the callout block */
+         cb.callout_number   = ecode[LINK_SIZE+2];
+         cb.offset_vector    = md->offset_vector;
+         cb.subject          = (PCRE_SPTR)md->start_subject;
+         cb.subject_length   = md->end_subject - md->start_subject;
+         cb.start_match      = mstart - md->start_subject;
+         cb.current_position = eptr - md->start_subject;
+         cb.pattern_position = GET(ecode, LINK_SIZE + 3);
+         cb.next_item_length = GET(ecode, 3 + 2*LINK_SIZE);
+         cb.capture_top      = offset_top/2;
+         cb.capture_last     = md->capture_last;
+         cb.callout_data     = md->callout_data;
+         if ((rrc = (*pcre_callout)(&cb)) > 0) MRRETURN(MATCH_NOMATCH);
+         if (rrc < 0) RRETURN(rrc);
+         }
+       ecode += _pcre_OP_lengths[OP_CALLOUT];
+       }
+     condcode = ecode[LINK_SIZE+1];
+     /* Now see what the actual condition is */
+     if (condcode == OP_RREF || condcode == OP_NRREF)    /* Recursion test */
+       {
+       if (md->recursive == NULL)                /* Not recursing => FALSE */
+         {
+         condition = FALSE;
+         ecode += GET(ecode, 1);
+         }
+       else
+         {
+         int recno = GET2(ecode, LINK_SIZE + 2);   /* Recursion group number*/
+         condition =  (recno == RREF_ANY || recno == md->recursive->group_num);
+         /* If the test is for recursion into a specific subpattern, and it is
+         false, but the test was set up by name, scan the table to see if the
+         name refers to any other numbers, and test them. The condition is true
+         if any one is set. */
+         if (!condition && condcode == OP_NRREF && recno != RREF_ANY)
+           {
+           uschar *slotA = md->name_table;
+           for (i = 0; i < md->name_count; i++)
+             {
+             if (GET2(slotA, 0) == recno) break;
+             slotA += md->name_entry_size;
+             }
+           /* Found a name for the number - there can be only one; duplicate
+           names for different numbers are allowed, but not vice versa. First
+           scan down for duplicates. */
+           if (i < md->name_count)
+             {
+             uschar *slotB = slotA;
+             while (slotB > md->name_table)
+               {
+               slotB -= md->name_entry_size;
+               if (strcmp((char *)slotA + 2, (char *)slotB + 2) == 0)
+                 {
+                 condition = GET2(slotB, 0) == md->recursive->group_num;
+                 if (condition) break;
+                 }
+               else break;
+               }
+             /* Scan up for duplicates */
+             if (!condition)
+               {
+               slotB = slotA;
+               for (i++; i < md->name_count; i++)
+                 {
+                 slotB += md->name_entry_size;
+                 if (strcmp((char *)slotA + 2, (char *)slotB + 2) == 0)
+                   {
+                   condition = GET2(slotB, 0) == md->recursive->group_num;
+                   if (condition) break;
+                   }
+                 else break;
+                 }
+               }
+             }
+           }
+         /* Chose branch according to the condition */
+         ecode += condition? 3 : GET(ecode, 1);
+         }
        }
-     else if (ecode[LINK_SIZE+1] == OP_CREF)    /* Group used test */
+     else if (condcode == OP_CREF || condcode == OP_NCREF)  /* Group used test */
        {
        offset = GET2(ecode, LINK_SIZE+2) << 1;  /* Doubled ref number */
        condition = offset < offset_top && md->offset_vector[offset] >= 0;
+       /* If the numbered capture is unset, but the reference was by name,
+       scan the table to see if the name refers to any other numbers, and test
+       them. The condition is true if any one is set. This is tediously similar
+       to the code above, but not close enough to try to amalgamate. */
+       if (!condition && condcode == OP_NCREF)
+         {
+         int refno = offset >> 1;
+         uschar *slotA = md->name_table;
+         for (i = 0; i < md->name_count; i++)
+           {
+           if (GET2(slotA, 0) == refno) break;
+           slotA += md->name_entry_size;
+           }
+         /* Found a name for the number - there can be only one; duplicate names
+         for different numbers are allowed, but not vice versa. First scan down
+         for duplicates. */
+         if (i < md->name_count)
+           {
+           uschar *slotB = slotA;
+           while (slotB > md->name_table)
+             {
+             slotB -= md->name_entry_size;
+             if (strcmp((char *)slotA + 2, (char *)slotB + 2) == 0)
+               {
+               offset = GET2(slotB, 0) << 1;
+               condition = offset < offset_top &&
+                 md->offset_vector[offset] >= 0;
+               if (condition) break;
+               }
+             else break;
+             }
+           /* Scan up for duplicates */
+           if (!condition)
+             {
+             slotB = slotA;
+             for (i++; i < md->name_count; i++)
+               {
+               slotB += md->name_entry_size;
+               if (strcmp((char *)slotA + 2, (char *)slotB + 2) == 0)
+                 {
+                 offset = GET2(slotB, 0) << 1;
+                 condition = offset < offset_top &&
+                   md->offset_vector[offset] >= 0;
+                 if (condition) break;
+                 }
+               else break;
+               }
+             }
+           }
+         }
+       /* Chose branch according to the condition */
        ecode += condition? 3 : GET(ecode, 1);
        }
-     else if (ecode[LINK_SIZE+1] == OP_DEF)     /* DEFINE - always false */
+     else if (condcode == OP_DEF)     /* DEFINE - always false */
        {
        condition = FALSE;
        ecode += GET(ecode, 1);
-Line 760 
 for (;;)
+Line 1062 
 for (;;)
          ecode += 1 + LINK_SIZE + GET(ecode, LINK_SIZE + 2);
          while (*ecode == OP_ALT) ecode += GET(ecode, 1);
          }
-       else if (rrc != MATCH_NOMATCH)
+       else if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN)
          {
          RRETURN(rrc);         /* Need braces because of following else */
          }
        else
          {
          condition = FALSE;
-         ecode += GET(ecode, 1);
+         ecode += codelink;
          }
        }
-Line 790 
 for (;;)
+Line 1092 
 for (;;)
          goto TAIL_RECURSE;
          }
        }
-     else                         /* Condition false & no 2nd alternative */
+     else                         /* Condition false & no alternative */
        {
        ecode += 1 + LINK_SIZE;
        }
      break;
-     /* End of the pattern. If we are in a top-level recursion, we should
+     /* Before OP_ACCEPT there may be any number of OP_CLOSE opcodes,
-     restore the offsets appropriately and continue from after the call. */
+     to close any currently open capturing brackets. */
+     case OP_CLOSE:
+     number = GET2(ecode, 1);
+     offset = number << 1;
+ #ifdef PCRE_DEBUG
+       printf("end bracket %d at *ACCEPT", number);
+       printf("\n");
+ #endif
+     md->capture_last = number;
+     if (offset >= md->offset_max) md->offset_overflow = TRUE; else
+       {
+       md->offset_vector[offset] =
+         md->offset_vector[md->offset_end - number];
+       md->offset_vector[offset+1] = eptr - md->start_subject;
+       if (offset_top <= offset) offset_top = offset + 2;
+       }
+     ecode += 3;
+     break;
+     /* End of the pattern, either real or forced. If we are in a top-level
+     recursion, we should restore the offsets appropriately and continue from
+     after the call. */
+     case OP_ACCEPT:
      case OP_END:
      if (md->recursive != NULL && md->recursive->group_num == 0)
        {
-Line 808 
 for (;;)
+Line 1136 
 for (;;)
        md->recursive = rec->prevrec;
        memmove(md->offset_vector, rec->offset_save,
          rec->saved_max * sizeof(int));
-       mstart = rec->save_start;
+       offset_top = rec->save_offset_top;
        ims = original_ims;
        ecode = rec->after_call;
        break;
        }
-     /* Otherwise, if PCRE_NOTEMPTY is set, fail if we have matched an empty
+     /* Otherwise, if we have matched an empty string, fail if PCRE_NOTEMPTY is
-     string - backtracking will then try other alternatives, if any. */
+     set, or if PCRE_NOTEMPTY_ATSTART is set and we have matched at the start of
+     the subject. In both cases, backtracking will then try other alternatives,
+     if any. */
+     if (eptr == mstart &&
+         (md->notempty ||
+           (md->notempty_atstart &&
+             mstart == md->start_subject + md->start_offset)))
+       MRRETURN(MATCH_NOMATCH);
+     /* Otherwise, we have a match. */
-     if (md->notempty && eptr == mstart) RRETURN(MATCH_NOMATCH);
      md->end_match_ptr = eptr;           /* Record where we ended */
      md->end_offset_top = offset_top;    /* and how many extracts were taken */
-     md->start_match_ptr = mstart;  /* and the start (\K can modify) */
+     md->start_match_ptr = mstart;       /* and the start (\K can modify) */
-     RRETURN(MATCH_MATCH);
+     MRRETURN(((op == OP_END)? MATCH_MATCH : MATCH_ACCEPT));
      /* Change option settings */
-Line 843 
 for (;;)
+Line 1180 
 for (;;)
        {
        RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, ims, NULL, 0,
          RM4);
-       if (rrc == MATCH_MATCH) break;
+       if (rrc == MATCH_MATCH || rrc == MATCH_ACCEPT)
-       if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+         {
+         mstart = md->start_match_ptr;   /* In case \K reset it */
+         break;
+         }
+       if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN) RRETURN(rrc);
        ecode += GET(ecode, 1);
        }
      while (*ecode == OP_ALT);
-     if (*ecode == OP_KET) RRETURN(MATCH_NOMATCH);
+     if (*ecode == OP_KET) MRRETURN(MATCH_NOMATCH);
      /* If checking an assertion for a condition, return MATCH_MATCH. */
-Line 862 
 for (;;)
+Line 1203 
 for (;;)
      offset_top = md->end_offset_top;
      continue;
-     /* Negative assertion: all branches must fail to match */
+     /* Negative assertion: all branches must fail to match. Encountering SKIP,
+     PRUNE, or COMMIT means we must assume failure without checking subsequent
+     branches. */
      case OP_ASSERT_NOT:
      case OP_ASSERTBACK_NOT:
-Line 870 
 for (;;)
+Line 1213 
 for (;;)
        {
        RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, ims, NULL, 0,
          RM5);
-       if (rrc == MATCH_MATCH) RRETURN(MATCH_NOMATCH);
+       if (rrc == MATCH_MATCH || rrc == MATCH_ACCEPT) MRRETURN(MATCH_NOMATCH);
-       if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+       if (rrc == MATCH_SKIP || rrc == MATCH_PRUNE || rrc == MATCH_COMMIT)
+         {
+         do ecode += GET(ecode,1); while (*ecode == OP_ALT);
+         break;
+         }
+       if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN) RRETURN(rrc);
        ecode += GET(ecode,1);
        }
      while (*ecode == OP_ALT);
-Line 894 
 for (;;)
+Line 1242 
 for (;;)
        while (i-- > 0)
          {
          eptr--;
-         if (eptr < md->start_subject) RRETURN(MATCH_NOMATCH);
+         if (eptr < md->start_subject) MRRETURN(MATCH_NOMATCH);
          BACKCHAR(eptr);
          }
        }
-Line 905 
 for (;;)
+Line 1253 
 for (;;)
        {
        eptr -= GET(ecode, 1);
-       if (eptr < md->start_subject) RRETURN(MATCH_NOMATCH);
+       if (eptr < md->start_subject) MRRETURN(MATCH_NOMATCH);
        }
-     /* Skip to next op code */
+     /* Save the earliest consulted character, then skip to next op code */
+     if (eptr < md->start_used_ptr) md->start_used_ptr = eptr;
      ecode += 1 + LINK_SIZE;
      break;
-Line 933 
 for (;;)
+Line 1282 
 for (;;)
        cb.capture_top      = offset_top/2;
        cb.capture_last     = md->capture_last;
        cb.callout_data     = md->callout_data;
-       if ((rrc = (*pcre_callout)(&cb)) > 0) RRETURN(MATCH_NOMATCH);
+       if ((rrc = (*pcre_callout)(&cb)) > 0) MRRETURN(MATCH_NOMATCH);
        if (rrc < 0) RRETURN(rrc);
        }
      ecode += 2 + 2*LINK_SIZE;
-Line 988 
 for (;;)
+Line 1337 
 for (;;)
        memcpy(new_recursive.offset_save, md->offset_vector,
              new_recursive.saved_max * sizeof(int));
-       new_recursive.save_start = mstart;
+       new_recursive.save_offset_top = offset_top;
-       mstart = eptr;
        /* OK, now we can do the recursion. For each top-level alternative we
        restore the offset and recursion data. */
-Line 1000 
 for (;;)
+Line 1348 
 for (;;)
          {
          RMATCH(eptr, callpat + _pcre_OP_lengths[*callpat], offset_top,
            md, ims, eptrb, flags, RM6);
-         if (rrc == MATCH_MATCH)
+         if (rrc == MATCH_MATCH || rrc == MATCH_ACCEPT)
            {
            DPRINTF(("Recursion matched\n"));
            md->recursive = new_recursive.prevrec;
            if (new_recursive.offset_save != stacksave)
              (pcre_free)(new_recursive.offset_save);
-           RRETURN(MATCH_MATCH);
+           MRRETURN(MATCH_MATCH);
            }
-         else if (rrc != MATCH_NOMATCH)
+         else if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN)
            {
            DPRINTF(("Recursion gave error %d\n", rrc));
+           if (new_recursive.offset_save != stacksave)
+             (pcre_free)(new_recursive.offset_save);
            RRETURN(rrc);
            }
-Line 1025 
 for (;;)
+Line 1375 
 for (;;)
        md->recursive = new_recursive.prevrec;
        if (new_recursive.offset_save != stacksave)
          (pcre_free)(new_recursive.offset_save);
-       RRETURN(MATCH_NOMATCH);
+       MRRETURN(MATCH_NOMATCH);
        }
      /* Control never reaches here */
-Line 1034 
 for (;;)
+Line 1384 
 for (;;)
      a move back into the brackets. Friedl calls these "atomic" subpatterns.
      Check the alternative branches in turn - the matching won't pass the KET
      for this kind of subpattern. If any one branch matches, we carry on as at
-     the end of a normal bracket, leaving the subject pointer. */
+     the end of a normal bracket, leaving the subject pointer, but resetting
+     the start-of-match value in case it was changed by \K. */
      case OP_ONCE:
      prev = ecode;
-Line 1043 
 for (;;)
+Line 1394 
 for (;;)
      do
        {
        RMATCH(eptr, ecode + 1 + LINK_SIZE, offset_top, md, ims, eptrb, 0, RM7);
-       if (rrc == MATCH_MATCH) break;
+       if (rrc == MATCH_MATCH)  /* Note: _not_ MATCH_ACCEPT */
-       if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+         {
+         mstart = md->start_match_ptr;
+         break;
+         }
+       if (rrc != MATCH_NOMATCH && rrc != MATCH_THEN) RRETURN(rrc);
        ecode += GET(ecode,1);
        }
      while (*ecode == OP_ALT);
-Line 1110 
 for (;;)
+Line 1465 
 for (;;)
      do ecode += GET(ecode,1); while (*ecode == OP_ALT);
      break;
-     /* BRAZERO and BRAMINZERO occur just before a bracket group, indicating
+     /* BRAZERO, BRAMINZERO and SKIPZERO occur just before a bracket group,
-     that it may occur zero times. It may repeat infinitely, or not at all -
+     indicating that it may occur zero times. It may repeat infinitely, or not
-     i.e. it could be ()* or ()? in the pattern. Brackets with fixed upper
+     at all - i.e. it could be ()* or ()? or even (){0} in the pattern. Brackets
-     repeat limits are compiled as a number of copies, with the optional ones
+     with fixed upper repeat limits are compiled as a number of copies, with the
-     preceded by BRAZERO or BRAMINZERO. */
+     optional ones preceded by BRAZERO or BRAMINZERO. */
      case OP_BRAZERO:
        {
-Line 1136 
 for (;;)
+Line 1491 
 for (;;)
        }
      break;
+     case OP_SKIPZERO:
+       {
+       next = ecode+1;
+       do next += GET(next,1); while (*next == OP_ALT);
+       ecode = next + 1 + LINK_SIZE;
+       }
+     break;
      /* End of a group, repeated or non-repeating. */
      case OP_KET:
-Line 1154 
 for (;;)
+Line 1517 
 for (;;)
        }
      else saved_eptr = NULL;
-     /* If we are at the end of an assertion group, stop matching and return
+     /* If we are at the end of an assertion group or an atomic group, stop
-     MATCH_MATCH, but record the current high water mark for use by positive
+     matching and return MATCH_MATCH, but record the current high water mark for
-     assertions. Do this also for the "once" (atomic) groups. */
+     use by positive assertions. We also need to record the match start in case
+     it was changed by \K. */
      if (*prev == OP_ASSERT || *prev == OP_ASSERT_NOT ||
          *prev == OP_ASSERTBACK || *prev == OP_ASSERTBACK_NOT ||
-Line 1164 
 for (;;)
+Line 1528 
 for (;;)
        {
        md->end_match_ptr = eptr;      /* For ONCE */
        md->end_offset_top = offset_top;
-       RRETURN(MATCH_MATCH);
+       md->start_match_ptr = mstart;
+       MRRETURN(MATCH_MATCH);
        }
      /* For capturing groups we have to check the group number back at the start
-Line 1178 
 for (;;)
+Line 1543 
 for (;;)
        number = GET2(prev, 1+LINK_SIZE);
        offset = number << 1;
- #ifdef DEBUG
+ #ifdef PCRE_DEBUG
        printf("end bracket %d", number);
        printf("\n");
  #endif
-Line 1200 
 for (;;)
+Line 1565 
 for (;;)
          recursion_info *rec = md->recursive;
          DPRINTF(("Recursion (%d) succeeded - continuing\n", number));
          md->recursive = rec->prevrec;
-         mstart = rec->save_start;
          memcpy(md->offset_vector, rec->offset_save,
            rec->saved_max * sizeof(int));
+         offset_top = rec->save_offset_top;
          ecode = rec->after_call;
          ims = original_ims;
          break;
-Line 1259 
 for (;;)
+Line 1624 
 for (;;)
      /* Start of subject unless notbol, or after internal newline if multiline */
      case OP_CIRC:
-     if (md->notbol && eptr == md->start_subject) RRETURN(MATCH_NOMATCH);
+     if (md->notbol && eptr == md->start_subject) MRRETURN(MATCH_NOMATCH);
      if ((ims & PCRE_MULTILINE) != 0)
        {
        if (eptr != md->start_subject &&
            (eptr == md->end_subject || !WAS_NEWLINE(eptr)))
-         RRETURN(MATCH_NOMATCH);
+         MRRETURN(MATCH_NOMATCH);
        ecode++;
        break;
        }
-Line 1273 
 for (;;)
+Line 1638 
 for (;;)
      /* Start of subject assertion */
      case OP_SOD:
-     if (eptr != md->start_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr != md->start_subject) MRRETURN(MATCH_NOMATCH);
      ecode++;
      break;
      /* Start of match assertion */
      case OP_SOM:
-     if (eptr != md->start_subject + md->start_offset) RRETURN(MATCH_NOMATCH);
+     if (eptr != md->start_subject + md->start_offset) MRRETURN(MATCH_NOMATCH);
      ecode++;
      break;
-Line 1298 
 for (;;)
+Line 1663 
 for (;;)
      if ((ims & PCRE_MULTILINE) != 0)
        {
        if (eptr < md->end_subject)
-         { if (!IS_NEWLINE(eptr)) RRETURN(MATCH_NOMATCH); }
+         { if (!IS_NEWLINE(eptr)) MRRETURN(MATCH_NOMATCH); }
        else
-         { if (md->noteol) RRETURN(MATCH_NOMATCH); }
+         { if (md->noteol) MRRETURN(MATCH_NOMATCH); }
        ecode++;
        break;
        }
      else
        {
-       if (md->noteol) RRETURN(MATCH_NOMATCH);
+       if (md->noteol) MRRETURN(MATCH_NOMATCH);
        if (!md->endonly)
          {
          if (eptr != md->end_subject &&
              (!IS_NEWLINE(eptr) || eptr != md->end_subject - md->nllen))
-           RRETURN(MATCH_NOMATCH);
+           MRRETURN(MATCH_NOMATCH);
          ecode++;
          break;
          }
-Line 1321 
 for (;;)
+Line 1686 
 for (;;)
      /* End of subject assertion (\z) */
      case OP_EOD:
-     if (eptr < md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr < md->end_subject) MRRETURN(MATCH_NOMATCH);
      ecode++;
      break;
-Line 1330 
 for (;;)
+Line 1695 
 for (;;)
      case OP_EODN:
      if (eptr != md->end_subject &&
          (!IS_NEWLINE(eptr) || eptr != md->end_subject - md->nllen))
-       RRETURN(MATCH_NOMATCH);
+       MRRETURN(MATCH_NOMATCH);
      ecode++;
      break;
-Line 1342 
 for (;;)
+Line 1707 
 for (;;)
        /* Find out if the previous and current characters are "word" characters.
        It takes a bit more work in UTF-8 mode. Characters > 255 are assumed to
-       be "non-word" characters. */
+       be "non-word" characters. Remember the earliest consulted character for
+       partial matching. */
  #ifdef SUPPORT_UTF8
        if (utf8)
          {
          if (eptr == md->start_subject) prev_is_word = FALSE; else
            {
-           const uschar *lastptr = eptr - 1;
+           USPTR lastptr = eptr - 1;
            while((*lastptr & 0xc0) == 0x80) lastptr--;
+           if (lastptr < md->start_used_ptr) md->start_used_ptr = lastptr;
            GETCHAR(c, lastptr);
            prev_is_word = c < 256 && (md->ctypes[c] & ctype_word) != 0;
            }
-         if (eptr >= md->end_subject) cur_is_word = FALSE; else
+         if (eptr >= md->end_subject)
+           {
+           SCHECK_PARTIAL();
+           cur_is_word = FALSE;
+           }
+         else
            {
            GETCHAR(c, eptr);
            cur_is_word = c < 256 && (md->ctypes[c] & ctype_word) != 0;
-Line 1363 
 for (;;)
+Line 1735 
 for (;;)
        else
  #endif
-       /* More streamlined when not in UTF-8 mode */
+       /* Not in UTF-8 mode */
          {
-         prev_is_word = (eptr != md->start_subject) &&
+         if (eptr == md->start_subject) prev_is_word = FALSE; else
-           ((md->ctypes[eptr[-1]] & ctype_word) != 0);
+           {
-         cur_is_word = (eptr < md->end_subject) &&
+           if (eptr <= md->start_used_ptr) md->start_used_ptr = eptr - 1;
-           ((md->ctypes[*eptr] & ctype_word) != 0);
+           prev_is_word = ((md->ctypes[eptr[-1]] & ctype_word) != 0);
+           }
+         if (eptr >= md->end_subject)
+           {
+           SCHECK_PARTIAL();
+           cur_is_word = FALSE;
+           }
+         else cur_is_word = ((md->ctypes[*eptr] & ctype_word) != 0);
          }
        /* Now see if the situation is what we want */
        if ((*ecode++ == OP_WORD_BOUNDARY)?
             cur_is_word == prev_is_word : cur_is_word != prev_is_word)
-         RRETURN(MATCH_NOMATCH);
+         MRRETURN(MATCH_NOMATCH);
        }
      break;
      /* Match a single character type; inline for speed */
      case OP_ANY:
-     if ((ims & PCRE_DOTALL) == 0)
+     if (IS_NEWLINE(eptr)) MRRETURN(MATCH_NOMATCH);
+     /* Fall through */
+     case OP_ALLANY:
+     if (eptr++ >= md->end_subject)
        {
-       if (IS_NEWLINE(eptr)) RRETURN(MATCH_NOMATCH);
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
        }
-     if (eptr++ >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (utf8) while (eptr < md->end_subject && (*eptr & 0xc0) == 0x80) eptr++;
-     if (utf8)
-       while (eptr < md->end_subject && (*eptr & 0xc0) == 0x80) eptr++;
      ecode++;
      break;
-Line 1397 
 for (;;)
+Line 1779 
 for (;;)
      any byte, even newline, independent of the setting of PCRE_DOTALL. */
      case OP_ANYBYTE:
-     if (eptr++ >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr++ >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      ecode++;
      break;
      case OP_NOT_DIGIT:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
      if (
  #ifdef SUPPORT_UTF8
-Line 1410 
 for (;;)
+Line 1800 
 for (;;)
  #endif
         (md->ctypes[c] & ctype_digit) != 0
         )
-       RRETURN(MATCH_NOMATCH);
+       MRRETURN(MATCH_NOMATCH);
      ecode++;
      break;
      case OP_DIGIT:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
      if (
  #ifdef SUPPORT_UTF8
-Line 1423 
 for (;;)
+Line 1817 
 for (;;)
  #endif
         (md->ctypes[c] & ctype_digit) == 0
         )
-       RRETURN(MATCH_NOMATCH);
+       MRRETURN(MATCH_NOMATCH);
      ecode++;
      break;
      case OP_NOT_WHITESPACE:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
      if (
  #ifdef SUPPORT_UTF8
-Line 1436 
 for (;;)
+Line 1834 
 for (;;)
  #endif
         (md->ctypes[c] & ctype_space) != 0
         )
-       RRETURN(MATCH_NOMATCH);
+       MRRETURN(MATCH_NOMATCH);
      ecode++;
      break;
      case OP_WHITESPACE:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
      if (
  #ifdef SUPPORT_UTF8
-Line 1449 
 for (;;)
+Line 1851 
 for (;;)
  #endif
         (md->ctypes[c] & ctype_space) == 0
         )
-       RRETURN(MATCH_NOMATCH);
+       MRRETURN(MATCH_NOMATCH);
      ecode++;
      break;
      case OP_NOT_WORDCHAR:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
      if (
  #ifdef SUPPORT_UTF8
-Line 1462 
 for (;;)
+Line 1868 
 for (;;)
  #endif
         (md->ctypes[c] & ctype_word) != 0
         )
-       RRETURN(MATCH_NOMATCH);
+       MRRETURN(MATCH_NOMATCH);
      ecode++;
      break;
      case OP_WORDCHAR:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
      if (
  #ifdef SUPPORT_UTF8
-Line 1475 
 for (;;)
+Line 1885 
 for (;;)
  #endif
         (md->ctypes[c] & ctype_word) == 0
         )
-       RRETURN(MATCH_NOMATCH);
+       MRRETURN(MATCH_NOMATCH);
      ecode++;
      break;
      case OP_ANYNL:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
      switch(c)
        {
-       default: RRETURN(MATCH_NOMATCH);
+       default: MRRETURN(MATCH_NOMATCH);
        case 0x000d:
        if (eptr < md->end_subject && *eptr == 0x0a) eptr++;
        break;
        case 0x000a:
+       break;
        case 0x000b:
        case 0x000c:
        case 0x0085:
        case 0x2028:
        case 0x2029:
+       if (md->bsr_anycrlf) MRRETURN(MATCH_NOMATCH);
        break;
        }
      ecode++;
      break;
      case OP_NOT_HSPACE:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
      switch(c)
        {
-Line 1524 
 for (;;)
+Line 1946 
 for (;;)
        case 0x202f:    /* NARROW NO-BREAK SPACE */
        case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
        case 0x3000:    /* IDEOGRAPHIC SPACE */
-       RRETURN(MATCH_NOMATCH);
+       MRRETURN(MATCH_NOMATCH);
        }
      ecode++;
      break;
      case OP_HSPACE:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
      switch(c)
        {
-       default: RRETURN(MATCH_NOMATCH);
+       default: MRRETURN(MATCH_NOMATCH);
        case 0x09:      /* HT */
        case 0x20:      /* SPACE */
        case 0xa0:      /* NBSP */
-Line 1560 
 for (;;)
+Line 1986 
 for (;;)
      break;
      case OP_NOT_VSPACE:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
      switch(c)
        {
-Line 1572 
 for (;;)
+Line 2002 
 for (;;)
        case 0x85:      /* NEL */
        case 0x2028:    /* LINE SEPARATOR */
        case 0x2029:    /* PARAGRAPH SEPARATOR */
-       RRETURN(MATCH_NOMATCH);
+       MRRETURN(MATCH_NOMATCH);
        }
      ecode++;
      break;
      case OP_VSPACE:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
      switch(c)
        {
-       default: RRETURN(MATCH_NOMATCH);
+       default: MRRETURN(MATCH_NOMATCH);
        case 0x0a:      /* LF */
        case 0x0b:      /* VT */
        case 0x0c:      /* FF */
-Line 1601 
 for (;;)
+Line 2035 
 for (;;)
      case OP_PROP:
      case OP_NOTPROP:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
        {
-       int chartype, script;
+       const ucd_record *prop = GET_UCD(c);
-       int category = _pcre_ucp_findprop(c, &chartype, &script);
        switch(ecode[1])
          {
          case PT_ANY:
-         if (op == OP_NOTPROP) RRETURN(MATCH_NOMATCH);
+         if (op == OP_NOTPROP) MRRETURN(MATCH_NOMATCH);
          break;
          case PT_LAMP:
-         if ((chartype == ucp_Lu ||
+         if ((prop->chartype == ucp_Lu ||
-              chartype == ucp_Ll ||
+              prop->chartype == ucp_Ll ||
-              chartype == ucp_Lt) == (op == OP_NOTPROP))
+              prop->chartype == ucp_Lt) == (op == OP_NOTPROP))
-           RRETURN(MATCH_NOMATCH);
+           MRRETURN(MATCH_NOMATCH);
           break;
          case PT_GC:
-         if ((ecode[2] != category) == (op == OP_PROP))
+         if ((ecode[2] != _pcre_ucp_gentype[prop->chartype]) == (op == OP_PROP))
-           RRETURN(MATCH_NOMATCH);
+           MRRETURN(MATCH_NOMATCH);
          break;
          case PT_PC:
-         if ((ecode[2] != chartype) == (op == OP_PROP))
+         if ((ecode[2] != prop->chartype) == (op == OP_PROP))
-           RRETURN(MATCH_NOMATCH);
+           MRRETURN(MATCH_NOMATCH);
          break;
          case PT_SC:
-         if ((ecode[2] != script) == (op == OP_PROP))
+         if ((ecode[2] != prop->script) == (op == OP_PROP))
-           RRETURN(MATCH_NOMATCH);
+           MRRETURN(MATCH_NOMATCH);
          break;
          default:
-Line 1647 
 for (;;)
+Line 2084 
 for (;;)
      is in the binary; otherwise a compile-time error occurs. */
      case OP_EXTUNI:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      GETCHARINCTEST(c, eptr);
        {
-       int chartype, script;
+       int category = UCD_CATEGORY(c);
-       int category = _pcre_ucp_findprop(c, &chartype, &script);
+       if (category == ucp_M) MRRETURN(MATCH_NOMATCH);
-       if (category == ucp_M) RRETURN(MATCH_NOMATCH);
        while (eptr < md->end_subject)
          {
          int len = 1;
-Line 1660 
 for (;;)
+Line 2100 
 for (;;)
            {
            GETCHARLEN(c, eptr, len);
            }
-         category = _pcre_ucp_findprop(c, &chartype, &script);
+         category = UCD_CATEGORY(c);
          if (category != ucp_M) break;
          eptr += len;
          }
-Line 1681 
 for (;;)
+Line 2121 
 for (;;)
      case OP_REF:
        {
        offset = GET2(ecode, 1) << 1;               /* Doubled ref number */
-       ecode += 3;                                 /* Advance past item */
+       ecode += 3;
+       /* If the reference is unset, there are two possibilities:
+       (a) In the default, Perl-compatible state, set the length to be longer
+       than the amount of subject left; this ensures that every attempt at a
+       match fails. We can't just fail here, because of the possibility of
+       quantifiers with zero minima.
-       /* If the reference is unset, set the length to be longer than the amount
+       (b) If the JavaScript compatibility flag is set, set the length to zero
-       of subject left; this ensures that every attempt at a match fails. We
+       so that the back reference matches an empty string.
-       can't just fail here, because of the possibility of quantifiers with zero
-       minima. */
+       Otherwise, set the length to the length of what was matched by the
+       referenced subpattern. */
-       length = (offset >= offset_top || md->offset_vector[offset] < 0)?
-         md->end_subject - eptr + 1 :
+       if (offset >= offset_top || md->offset_vector[offset] < 0)
-         md->offset_vector[offset+1] - md->offset_vector[offset];
+         length = (md->jscript_compat)? 0 : md->end_subject - eptr + 1;
+       else
+         length = md->offset_vector[offset+1] - md->offset_vector[offset];
        /* Set up for repetition, or handle the non-repeated case */
-Line 1719 
 for (;;)
+Line 2168 
 for (;;)
          break;
          default:               /* No repeat follows */
-         if (!match_ref(offset, eptr, length, md, ims)) RRETURN(MATCH_NOMATCH);
+         if (!match_ref(offset, eptr, length, md, ims))
+           {
+           CHECK_PARTIAL();
+           MRRETURN(MATCH_NOMATCH);
+           }
          eptr += length;
          continue;              /* With the main loop */
          }
-Line 1735 
 for (;;)
+Line 2188 
 for (;;)
        for (i = 1; i <= min; i++)
          {
-         if (!match_ref(offset, eptr, length, md, ims)) RRETURN(MATCH_NOMATCH);
+         if (!match_ref(offset, eptr, length, md, ims))
+           {
+           CHECK_PARTIAL();
+           MRRETURN(MATCH_NOMATCH);
+           }
          eptr += length;
          }
-Line 1752 
 for (;;)
+Line 2209 
 for (;;)
            {
            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM14);
            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-           if (fi >= max || !match_ref(offset, eptr, length, md, ims))
+           if (fi >= max) MRRETURN(MATCH_NOMATCH);
-             RRETURN(MATCH_NOMATCH);
+           if (!match_ref(offset, eptr, length, md, ims))
+             {
+             CHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            eptr += length;
            }
          /* Control never gets here */
-Line 1766 
 for (;;)
+Line 2227 
 for (;;)
          pp = eptr;
          for (i = min; i < max; i++)
            {
-           if (!match_ref(offset, eptr, length, md, ims)) break;
+           if (!match_ref(offset, eptr, length, md, ims))
+             {
+             CHECK_PARTIAL();
+             break;
+             }
            eptr += length;
            }
          while (eptr >= pp)
-Line 1775 
 for (;;)
+Line 2240 
 for (;;)
            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
            eptr -= length;
            }
-         RRETURN(MATCH_NOMATCH);
+         MRRETURN(MATCH_NOMATCH);
          }
        }
      /* Control never gets here */
      /* Match a bit-mapped character class, possibly repeatedly. This op code is
      used when all the characters in the class have values in the range 0-255,
      and either the matching is caseful, or the characters are in the range
-Line 1836 
 for (;;)
+Line 2299 
 for (;;)
          {
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            GETCHARINC(c, eptr);
            if (c > 255)
              {
-             if (op == OP_CLASS) RRETURN(MATCH_NOMATCH);
+             if (op == OP_CLASS) MRRETURN(MATCH_NOMATCH);
              }
            else
              {
-             if ((data[c/8] & (1 << (c&7))) == 0) RRETURN(MATCH_NOMATCH);
+             if ((data[c/8] & (1 << (c&7))) == 0) MRRETURN(MATCH_NOMATCH);
              }
            }
          }
-Line 1854 
 for (;;)
+Line 2321 
 for (;;)
          {
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            c = *eptr++;
-           if ((data[c/8] & (1 << (c&7))) == 0) RRETURN(MATCH_NOMATCH);
+           if ((data[c/8] & (1 << (c&7))) == 0) MRRETURN(MATCH_NOMATCH);
            }
          }
-Line 1878 
 for (;;)
+Line 2349 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM16);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-             if (fi >= max || eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINC(c, eptr);
              if (c > 255)
                {
-               if (op == OP_CLASS) RRETURN(MATCH_NOMATCH);
+               if (op == OP_CLASS) MRRETURN(MATCH_NOMATCH);
                }
              else
                {
-               if ((data[c/8] & (1 << (c&7))) == 0) RRETURN(MATCH_NOMATCH);
+               if ((data[c/8] & (1 << (c&7))) == 0) MRRETURN(MATCH_NOMATCH);
                }
              }
            }
-Line 1898 
 for (;;)
+Line 2374 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM17);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-             if (fi >= max || eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              c = *eptr++;
-             if ((data[c/8] & (1 << (c&7))) == 0) RRETURN(MATCH_NOMATCH);
+             if ((data[c/8] & (1 << (c&7))) == 0) MRRETURN(MATCH_NOMATCH);
              }
            }
          /* Control never gets here */
-Line 1919 
 for (;;)
+Line 2400 
 for (;;)
            for (i = min; i < max; i++)
              {
              int len = 1;
-             if (eptr >= md->end_subject) break;
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               break;
+               }
              GETCHARLEN(c, eptr, len);
              if (c > 255)
                {
-Line 1945 
 for (;;)
+Line 2430 
 for (;;)
            {
            for (i = min; i < max; i++)
              {
-             if (eptr >= md->end_subject) break;
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               break;
+               }
              c = *eptr;
              if ((data[c/8] & (1 << (c&7))) == 0) break;
              eptr++;
-Line 1958 
 for (;;)
+Line 2447 
 for (;;)
              }
            }
-         RRETURN(MATCH_NOMATCH);
+         MRRETURN(MATCH_NOMATCH);
          }
        }
      /* Control never gets here */
      /* Match an extended character class. This opcode is encountered only
-     in UTF-8 mode, because that's the only time it is compiled. */
+     when UTF-8 mode mode is supported. Nevertheless, we may not be in UTF-8
+     mode, because Unicode properties are supported in non-UTF-8 mode. */
  #ifdef SUPPORT_UTF8
      case OP_XCLASS:
-Line 2006 
 for (;;)
+Line 2496 
 for (;;)
        for (i = 1; i <= min; i++)
          {
-         if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+         if (eptr >= md->end_subject)
-         GETCHARINC(c, eptr);
+           {
-         if (!_pcre_xclass(c, data)) RRETURN(MATCH_NOMATCH);
+           SCHECK_PARTIAL();
+           MRRETURN(MATCH_NOMATCH);
+           }
+         GETCHARINCTEST(c, eptr);
+         if (!_pcre_xclass(c, data)) MRRETURN(MATCH_NOMATCH);
          }
        /* If max == min we can continue with the main loop without the
-Line 2025 
 for (;;)
+Line 2519 
 for (;;)
            {
            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM20);
            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-           if (fi >= max || eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (fi >= max) MRRETURN(MATCH_NOMATCH);
-           GETCHARINC(c, eptr);
+           if (eptr >= md->end_subject)
-           if (!_pcre_xclass(c, data)) RRETURN(MATCH_NOMATCH);
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           GETCHARINCTEST(c, eptr);
+           if (!_pcre_xclass(c, data)) MRRETURN(MATCH_NOMATCH);
            }
          /* Control never gets here */
          }
-Line 2040 
 for (;;)
+Line 2539 
 for (;;)
          for (i = min; i < max; i++)
            {
            int len = 1;
-           if (eptr >= md->end_subject) break;
+           if (eptr >= md->end_subject)
-           GETCHARLEN(c, eptr, len);
+             {
+             SCHECK_PARTIAL();
+             break;
+             }
+           GETCHARLENTEST(c, eptr, len);
            if (!_pcre_xclass(c, data)) break;
            eptr += len;
            }
-Line 2050 
 for (;;)
+Line 2553 
 for (;;)
            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM21);
            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
            if (eptr-- == pp) break;        /* Stop if tried at original pos */
-           BACKCHAR(eptr);
+           if (utf8) BACKCHAR(eptr);
            }
-         RRETURN(MATCH_NOMATCH);
+         MRRETURN(MATCH_NOMATCH);
          }
        /* Control never gets here */
-Line 2068 
 for (;;)
+Line 2571 
 for (;;)
        length = 1;
        ecode++;
        GETCHARLEN(fc, ecode, length);
-       if (length > md->end_subject - eptr) RRETURN(MATCH_NOMATCH);
+       if (length > md->end_subject - eptr)
-       while (length-- > 0) if (*ecode++ != *eptr++) RRETURN(MATCH_NOMATCH);
+         {
+         CHECK_PARTIAL();             /* Not SCHECK_PARTIAL() */
+         MRRETURN(MATCH_NOMATCH);
+         }
+       while (length-- > 0) if (*ecode++ != *eptr++) MRRETURN(MATCH_NOMATCH);
        }
      else
  #endif
      /* Non-UTF-8 mode */
        {
-       if (md->end_subject - eptr < 1) RRETURN(MATCH_NOMATCH);
+       if (md->end_subject - eptr < 1)
-       if (ecode[1] != *eptr++) RRETURN(MATCH_NOMATCH);
+         {
+         SCHECK_PARTIAL();            /* This one can use SCHECK_PARTIAL() */
+         MRRETURN(MATCH_NOMATCH);
+         }
+       if (ecode[1] != *eptr++) MRRETURN(MATCH_NOMATCH);
        ecode += 2;
        }
      break;
-Line 2092 
 for (;;)
+Line 2603 
 for (;;)
        ecode++;
        GETCHARLEN(fc, ecode, length);
-       if (length > md->end_subject - eptr) RRETURN(MATCH_NOMATCH);
+       if (length > md->end_subject - eptr)
+         {
+         CHECK_PARTIAL();             /* Not SCHECK_PARTIAL() */
+         MRRETURN(MATCH_NOMATCH);
+         }
        /* If the pattern character's value is < 128, we have only one byte, and
        can use the fast lookup table. */
        if (fc < 128)
          {
-         if (md->lcc[*ecode++] != md->lcc[*eptr++]) RRETURN(MATCH_NOMATCH);
+         if (md->lcc[*ecode++] != md->lcc[*eptr++]) MRRETURN(MATCH_NOMATCH);
          }
        /* Otherwise we must pick up the subject character */
-Line 2116 
 for (;;)
+Line 2631 
 for (;;)
          if (fc != dc)
            {
  #ifdef SUPPORT_UCP
-           if (dc != _pcre_ucp_othercase(fc))
+           if (dc != UCD_OTHERCASE(fc))
  #endif
-             RRETURN(MATCH_NOMATCH);
+             MRRETURN(MATCH_NOMATCH);
            }
          }
        }
-Line 2127 
 for (;;)
+Line 2642 
 for (;;)
      /* Non-UTF-8 mode */
        {
-       if (md->end_subject - eptr < 1) RRETURN(MATCH_NOMATCH);
+       if (md->end_subject - eptr < 1)
-       if (md->lcc[ecode[1]] != md->lcc[*eptr++]) RRETURN(MATCH_NOMATCH);
+         {
+         SCHECK_PARTIAL();            /* This one can use SCHECK_PARTIAL() */
+         MRRETURN(MATCH_NOMATCH);
+         }
+       if (md->lcc[ecode[1]] != md->lcc[*eptr++]) MRRETURN(MATCH_NOMATCH);
        ecode += 2;
        }
      break;
-Line 2181 
 for (;;)
+Line 2700 
 for (;;)
      case OP_MINQUERY:
      c = *ecode++ - OP_STAR;
      minimize = (c & 1) != 0;
      min = rep_min[c];                 /* Pick up values from tables; */
      max = rep_max[c];                 /* zero for max => infinity */
      if (max == 0) max = INT_MAX;
-     /* Common code for all repeated single-character matches. We can give
+     /* Common code for all repeated single-character matches. */
-     up quickly if there are fewer than the minimum number of characters left in
-     the subject. */
      REPEATCHAR:
  #ifdef SUPPORT_UTF8
-Line 2196 
 for (;;)
+Line 2714 
 for (;;)
        length = 1;
        charptr = ecode;
        GETCHARLEN(fc, ecode, length);
-       if (min * length > md->end_subject - eptr) RRETURN(MATCH_NOMATCH);
        ecode += length;
        /* Handle multibyte character matching specially here. There is
-Line 2207 
 for (;;)
+Line 2724 
 for (;;)
  #ifdef SUPPORT_UCP
          unsigned int othercase;
          if ((ims & PCRE_CASELESS) != 0 &&
-             (othercase = _pcre_ucp_othercase(fc)) != NOTACHAR)
+             (othercase = UCD_OTHERCASE(fc)) != fc)
            oclength = _pcre_ord2utf8(othercase, occhars);
          else oclength = 0;
  #endif  /* SUPPORT_UCP */
          for (i = 1; i <= min; i++)
            {
-           if (memcmp(eptr, charptr, length) == 0) eptr += length;
+           if (eptr <= md->end_subject - length &&
+             memcmp(eptr, charptr, length) == 0) eptr += length;
  #ifdef SUPPORT_UCP
-           /* Need braces because of following else */
+           else if (oclength > 0 &&
-           else if (oclength == 0) { RRETURN(MATCH_NOMATCH); }
+                    eptr <= md->end_subject - oclength &&
+                    memcmp(eptr, occhars, oclength) == 0) eptr += oclength;
+ #endif  /* SUPPORT_UCP */
            else
              {
-             if (memcmp(eptr, occhars, oclength) != 0) RRETURN(MATCH_NOMATCH);
+             CHECK_PARTIAL();
-             eptr += oclength;
+             MRRETURN(MATCH_NOMATCH);
              }
- #else   /* without SUPPORT_UCP */
-           else { RRETURN(MATCH_NOMATCH); }
- #endif  /* SUPPORT_UCP */
            }
          if (min == max) continue;
-Line 2236 
 for (;;)
+Line 2753 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM22);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-             if (fi >= max || eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
-             if (memcmp(eptr, charptr, length) == 0) eptr += length;
+             if (eptr <= md->end_subject - length &&
+               memcmp(eptr, charptr, length) == 0) eptr += length;
  #ifdef SUPPORT_UCP
-             /* Need braces because of following else */
+             else if (oclength > 0 &&
-             else if (oclength == 0) { RRETURN(MATCH_NOMATCH); }
+                      eptr <= md->end_subject - oclength &&
+                      memcmp(eptr, occhars, oclength) == 0) eptr += oclength;
+ #endif  /* SUPPORT_UCP */
              else
                {
-               if (memcmp(eptr, occhars, oclength) != 0) RRETURN(MATCH_NOMATCH);
+               CHECK_PARTIAL();
-               eptr += oclength;
+               MRRETURN(MATCH_NOMATCH);
                }
- #else   /* without SUPPORT_UCP */
-             else { RRETURN (MATCH_NOMATCH); }
- #endif  /* SUPPORT_UCP */
              }
            /* Control never gets here */
            }
-Line 2258 
 for (;;)
+Line 2775 
 for (;;)
            pp = eptr;
            for (i = min; i < max; i++)
              {
-             if (eptr > md->end_subject - length) break;
+             if (eptr <= md->end_subject - length &&
-             if (memcmp(eptr, charptr, length) == 0) eptr += length;
+                 memcmp(eptr, charptr, length) == 0) eptr += length;
  #ifdef SUPPORT_UCP
-             else if (oclength == 0) break;
+             else if (oclength > 0 &&
+                      eptr <= md->end_subject - oclength &&
+                      memcmp(eptr, occhars, oclength) == 0) eptr += oclength;
+ #endif  /* SUPPORT_UCP */
              else
                {
-               if (memcmp(eptr, occhars, oclength) != 0) break;
+               CHECK_PARTIAL();
-               eptr += oclength;
+               break;
                }
- #else   /* without SUPPORT_UCP */
-             else break;
- #endif  /* SUPPORT_UCP */
              }
            if (possessive) continue;
            for(;;)
-            {
+             {
-            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM23);
+             RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM23);
-            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+             if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-            if (eptr == pp) RRETURN(MATCH_NOMATCH);
+             if (eptr == pp) { MRRETURN(MATCH_NOMATCH); }
  #ifdef SUPPORT_UCP
-            eptr--;
+             eptr--;
-            BACKCHAR(eptr);
+             BACKCHAR(eptr);
  #else   /* without SUPPORT_UCP */
-            eptr -= length;
+             eptr -= length;
  #endif  /* SUPPORT_UCP */
-            }
+             }
            }
          /* Control never gets here */
          }
-Line 2297 
 for (;;)
+Line 2815 
 for (;;)
  #endif  /* SUPPORT_UTF8 */
      /* When not in UTF-8 mode, load a single-byte character. */
-       {
-       if (min > md->end_subject - eptr) RRETURN(MATCH_NOMATCH);
+     fc = *ecode++;
-       fc = *ecode++;
-       }
      /* The value of fc at this point is always less than 256, though we may or
      may not be in UTF-8 mode. The code is duplicated for the caseless and
-Line 2318 
 for (;;)
+Line 2834 
 for (;;)
        {
        fc = md->lcc[fc];
        for (i = 1; i <= min; i++)
-         if (fc != md->lcc[*eptr++]) RRETURN(MATCH_NOMATCH);
+         {
+         if (eptr >= md->end_subject)
+           {
+           SCHECK_PARTIAL();
+           MRRETURN(MATCH_NOMATCH);
+           }
+         if (fc != md->lcc[*eptr++]) MRRETURN(MATCH_NOMATCH);
+         }
        if (min == max) continue;
        if (minimize)
          {
-Line 2326 
 for (;;)
+Line 2849 
 for (;;)
            {
            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM24);
            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-           if (fi >= max || eptr >= md->end_subject ||
+           if (fi >= max) MRRETURN(MATCH_NOMATCH);
-               fc != md->lcc[*eptr++])
+           if (eptr >= md->end_subject)
-             RRETURN(MATCH_NOMATCH);
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (fc != md->lcc[*eptr++]) MRRETURN(MATCH_NOMATCH);
            }
          /* Control never gets here */
          }
-Line 2337 
 for (;;)
+Line 2864 
 for (;;)
          pp = eptr;
          for (i = min; i < max; i++)
            {
-           if (eptr >= md->end_subject || fc != md->lcc[*eptr]) break;
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             break;
+             }
+           if (fc != md->lcc[*eptr]) break;
            eptr++;
            }
          if (possessive) continue;
          while (eptr >= pp)
            {
            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM25);
            eptr--;
            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
            }
-         RRETURN(MATCH_NOMATCH);
+         MRRETURN(MATCH_NOMATCH);
          }
        /* Control never gets here */
        }
-Line 2356 
 for (;;)
+Line 2890 
 for (;;)
      else
        {
-       for (i = 1; i <= min; i++) if (fc != *eptr++) RRETURN(MATCH_NOMATCH);
+       for (i = 1; i <= min; i++)
+         {
+         if (eptr >= md->end_subject)
+           {
+           SCHECK_PARTIAL();
+           MRRETURN(MATCH_NOMATCH);
+           }
+         if (fc != *eptr++) MRRETURN(MATCH_NOMATCH);
+         }
        if (min == max) continue;
        if (minimize)
          {
          for (fi = min;; fi++)
            {
            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM26);
            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-           if (fi >= max || eptr >= md->end_subject || fc != *eptr++)
+           if (fi >= max) MRRETURN(MATCH_NOMATCH);
-             RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (fc != *eptr++) MRRETURN(MATCH_NOMATCH);
            }
          /* Control never gets here */
          }
-Line 2374 
 for (;;)
+Line 2923 
 for (;;)
          pp = eptr;
          for (i = min; i < max; i++)
            {
-           if (eptr >= md->end_subject || fc != *eptr) break;
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             break;
+             }
+           if (fc != *eptr) break;
            eptr++;
            }
          if (possessive) continue;
          while (eptr >= pp)
            {
            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM27);
            eptr--;
            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
            }
-         RRETURN(MATCH_NOMATCH);
+         MRRETURN(MATCH_NOMATCH);
          }
        }
      /* Control never gets here */
-Line 2393 
 for (;;)
+Line 2948 
 for (;;)
      checking can be multibyte. */
      case OP_NOT:
-     if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+     if (eptr >= md->end_subject)
+       {
+       SCHECK_PARTIAL();
+       MRRETURN(MATCH_NOMATCH);
+       }
      ecode++;
      GETCHARINCTEST(c, eptr);
      if ((ims & PCRE_CASELESS) != 0)
-Line 2402 
 for (;;)
+Line 2961 
 for (;;)
        if (c < 256)
  #endif
        c = md->lcc[c];
-       if (md->lcc[*ecode++] == c) RRETURN(MATCH_NOMATCH);
+       if (md->lcc[*ecode++] == c) MRRETURN(MATCH_NOMATCH);
        }
      else
        {
-       if (*ecode++ == c) RRETURN(MATCH_NOMATCH);
+       if (*ecode++ == c) MRRETURN(MATCH_NOMATCH);
        }
      break;
-Line 2470 
 for (;;)
+Line 3029 
 for (;;)
      max = rep_max[c];                 /* zero for max => infinity */
      if (max == 0) max = INT_MAX;
-     /* Common code for all repeated single-byte matches. We can give up quickly
+     /* Common code for all repeated single-byte matches. */
-     if there are fewer than the minimum number of bytes left in the
-     subject. */
      REPEATNOTCHAR:
-     if (min > md->end_subject - eptr) RRETURN(MATCH_NOMATCH);
      fc = *ecode++;
      /* The code is duplicated for the caseless and caseful cases, for speed,
-Line 2500 
 for (;;)
+Line 3056 
 for (;;)
          register unsigned int d;
          for (i = 1; i <= min; i++)
            {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            GETCHARINC(d, eptr);
            if (d < 256) d = md->lcc[d];
-           if (fc == d) RRETURN(MATCH_NOMATCH);
+           if (fc == d) MRRETURN(MATCH_NOMATCH);
            }
          }
        else
-Line 2511 
 for (;;)
+Line 3072 
 for (;;)
        /* Not UTF-8 mode */
          {
          for (i = 1; i <= min; i++)
-           if (fc == md->lcc[*eptr++]) RRETURN(MATCH_NOMATCH);
+           {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (fc == md->lcc[*eptr++]) MRRETURN(MATCH_NOMATCH);
+           }
          }
        if (min == max) continue;
-Line 2527 
 for (;;)
+Line 3095 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM28);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINC(d, eptr);
              if (d < 256) d = md->lcc[d];
-             if (fi >= max || eptr >= md->end_subject || fc == d)
+             if (fc == d) MRRETURN(MATCH_NOMATCH);
-               RRETURN(MATCH_NOMATCH);
              }
            }
          else
-Line 2541 
 for (;;)
+Line 3114 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM29);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-             if (fi >= max || eptr >= md->end_subject || fc == md->lcc[*eptr++])
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
-               RRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
+             if (fc == md->lcc[*eptr++]) MRRETURN(MATCH_NOMATCH);
              }
            }
          /* Control never gets here */
-Line 2562 
 for (;;)
+Line 3140 
 for (;;)
            for (i = min; i < max; i++)
              {
              int len = 1;
-             if (eptr >= md->end_subject) break;
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               break;
+               }
              GETCHARLEN(d, eptr, len);
              if (d < 256) d = md->lcc[d];
              if (fc == d) break;
-Line 2583 
 for (;;)
+Line 3165 
 for (;;)
            {
            for (i = min; i < max; i++)
              {
-             if (eptr >= md->end_subject || fc == md->lcc[*eptr]) break;
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               break;
+               }
+             if (fc == md->lcc[*eptr]) break;
              eptr++;
              }
            if (possessive) continue;
-Line 2595 
 for (;;)
+Line 3182 
 for (;;)
              }
            }
-         RRETURN(MATCH_NOMATCH);
+         MRRETURN(MATCH_NOMATCH);
          }
        /* Control never gets here */
        }
-Line 2611 
 for (;;)
+Line 3198 
 for (;;)
          register unsigned int d;
          for (i = 1; i <= min; i++)
            {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            GETCHARINC(d, eptr);
-           if (fc == d) RRETURN(MATCH_NOMATCH);
+           if (fc == d) MRRETURN(MATCH_NOMATCH);
            }
          }
        else
-Line 2620 
 for (;;)
+Line 3212 
 for (;;)
        /* Not UTF-8 mode */
          {
          for (i = 1; i <= min; i++)
-           if (fc == *eptr++) RRETURN(MATCH_NOMATCH);
+           {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (fc == *eptr++) MRRETURN(MATCH_NOMATCH);
+           }
          }
        if (min == max) continue;
-Line 2636 
 for (;;)
+Line 3235 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM32);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINC(d, eptr);
-             if (fi >= max || eptr >= md->end_subject || fc == d)
+             if (fc == d) MRRETURN(MATCH_NOMATCH);
-               RRETURN(MATCH_NOMATCH);
              }
            }
          else
-Line 2649 
 for (;;)
+Line 3253 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM33);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-             if (fi >= max || eptr >= md->end_subject || fc == *eptr++)
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
-               RRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
+             if (fc == *eptr++) MRRETURN(MATCH_NOMATCH);
              }
            }
          /* Control never gets here */
-Line 2670 
 for (;;)
+Line 3279 
 for (;;)
            for (i = min; i < max; i++)
              {
              int len = 1;
-             if (eptr >= md->end_subject) break;
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               break;
+               }
              GETCHARLEN(d, eptr, len);
              if (fc == d) break;
              eptr += len;
-Line 2690 
 for (;;)
+Line 3303 
 for (;;)
            {
            for (i = min; i < max; i++)
              {
-             if (eptr >= md->end_subject || fc == *eptr) break;
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               break;
+               }
+             if (fc == *eptr) break;
              eptr++;
              }
            if (possessive) continue;
-Line 2702 
 for (;;)
+Line 3320 
 for (;;)
              }
            }
-         RRETURN(MATCH_NOMATCH);
+         MRRETURN(MATCH_NOMATCH);
          }
        }
      /* Control never gets here */
-Line 2784 
 for (;;)
+Line 3402 
 for (;;)
      /* First, ensure the minimum number of matches are present. Use inline
      code for maximizing the speed, and do the type test once at the start
-     (i.e. keep it out of the loop). Also we can test that there are at least
+     (i.e. keep it out of the loop). Separate the UTF-8 code completely as that
-     the minimum number of bytes before we start. This isn't as effective in
-     UTF-8 mode, but it does no harm. Separate the UTF-8 code completely as that
      is tidier. Also separate the UCP code, which can be the same for both UTF-8
      and single-bytes. */
-     if (min > md->end_subject - eptr) RRETURN(MATCH_NOMATCH);
      if (min > 0)
        {
  #ifdef SUPPORT_UCP
-Line 2799 
 for (;;)
+Line 3414 
 for (;;)
          switch(prop_type)
            {
            case PT_ANY:
-           if (prop_fail_result) RRETURN(MATCH_NOMATCH);
+           if (prop_fail_result) MRRETURN(MATCH_NOMATCH);
            for (i = 1; i <= min; i++)
              {
-             if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINCTEST(c, eptr);
              }
            break;
-Line 2810 
 for (;;)
+Line 3429 
 for (;;)
            case PT_LAMP:
            for (i = 1; i <= min; i++)
              {
-             if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINCTEST(c, eptr);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_chartype = UCD_CHARTYPE(c);
              if ((prop_chartype == ucp_Lu ||
                   prop_chartype == ucp_Ll ||
                   prop_chartype == ucp_Lt) == prop_fail_result)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              }
            break;
            case PT_GC:
            for (i = 1; i <= min; i++)
              {
-             if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINCTEST(c, eptr);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_category = UCD_CATEGORY(c);
              if ((prop_category == prop_value) == prop_fail_result)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              }
            break;
            case PT_PC:
            for (i = 1; i <= min; i++)
              {
-             if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINCTEST(c, eptr);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_chartype = UCD_CHARTYPE(c);
              if ((prop_chartype == prop_value) == prop_fail_result)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              }
            break;
            case PT_SC:
            for (i = 1; i <= min; i++)
              {
-             if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINCTEST(c, eptr);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_script = UCD_SCRIPT(c);
              if ((prop_script == prop_value) == prop_fail_result)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              }
            break;
-Line 2865 
 for (;;)
+Line 3500 
 for (;;)
          {
          for (i = 1; i <= min; i++)
            {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            GETCHARINCTEST(c, eptr);
-           prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+           prop_category = UCD_CATEGORY(c);
-           if (prop_category == ucp_M) RRETURN(MATCH_NOMATCH);
+           if (prop_category == ucp_M) MRRETURN(MATCH_NOMATCH);
            while (eptr < md->end_subject)
              {
              int len = 1;
-             if (!utf8) c = *eptr; else
+             if (!utf8) c = *eptr;
-               {
+               else { GETCHARLEN(c, eptr, len); }
-               GETCHARLEN(c, eptr, len);
+             prop_category = UCD_CATEGORY(c);
-               }
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
              if (prop_category != ucp_M) break;
              eptr += len;
              }
-Line 2893 
 for (;;)
+Line 3531 
 for (;;)
          case OP_ANY:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject ||
+           if (eptr >= md->end_subject)
-                ((ims & PCRE_DOTALL) == 0 && IS_NEWLINE(eptr)))
+             {
-             RRETURN(MATCH_NOMATCH);
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (IS_NEWLINE(eptr)) MRRETURN(MATCH_NOMATCH);
+           eptr++;
+           while (eptr < md->end_subject && (*eptr & 0xc0) == 0x80) eptr++;
+           }
+         break;
+         case OP_ALLANY:
+         for (i = 1; i <= min; i++)
+           {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            eptr++;
            while (eptr < md->end_subject && (*eptr & 0xc0) == 0x80) eptr++;
            }
          break;
          case OP_ANYBYTE:
+         if (eptr > md->end_subject - min) MRRETURN(MATCH_NOMATCH);
          eptr += min;
          break;
          case OP_ANYNL:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            GETCHARINC(c, eptr);
            switch(c)
              {
-             default: RRETURN(MATCH_NOMATCH);
+             default: MRRETURN(MATCH_NOMATCH);
              case 0x000d:
              if (eptr < md->end_subject && *eptr == 0x0a) eptr++;
              break;
              case 0x000a:
+             break;
              case 0x000b:
              case 0x000c:
              case 0x0085:
              case 0x2028:
              case 0x2029:
+             if (md->bsr_anycrlf) MRRETURN(MATCH_NOMATCH);
              break;
              }
            }
-Line 2930 
 for (;;)
+Line 3593 
 for (;;)
          case OP_NOT_HSPACE:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            GETCHARINC(c, eptr);
            switch(c)
              {
-Line 2954 
 for (;;)
+Line 3621 
 for (;;)
              case 0x202f:    /* NARROW NO-BREAK SPACE */
              case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
              case 0x3000:    /* IDEOGRAPHIC SPACE */
-             RRETURN(MATCH_NOMATCH);
+             MRRETURN(MATCH_NOMATCH);
              }
            }
          break;
-Line 2962 
 for (;;)
+Line 3629 
 for (;;)
          case OP_HSPACE:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            GETCHARINC(c, eptr);
            switch(c)
              {
-             default: RRETURN(MATCH_NOMATCH);
+             default: MRRETURN(MATCH_NOMATCH);
              case 0x09:      /* HT */
              case 0x20:      /* SPACE */
              case 0xa0:      /* NBSP */
-Line 2994 
 for (;;)
+Line 3665 
 for (;;)
          case OP_NOT_VSPACE:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            GETCHARINC(c, eptr);
            switch(c)
              {
-Line 3006 
 for (;;)
+Line 3681 
 for (;;)
              case 0x85:      /* NEL */
              case 0x2028:    /* LINE SEPARATOR */
              case 0x2029:    /* PARAGRAPH SEPARATOR */
-             RRETURN(MATCH_NOMATCH);
+             MRRETURN(MATCH_NOMATCH);
              }
            }
          break;
-Line 3014 
 for (;;)
+Line 3689 
 for (;;)
          case OP_VSPACE:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            GETCHARINC(c, eptr);
            switch(c)
              {
-             default: RRETURN(MATCH_NOMATCH);
+             default: MRRETURN(MATCH_NOMATCH);
              case 0x0a:      /* LF */
              case 0x0b:      /* VT */
              case 0x0c:      /* FF */
-Line 3034 
 for (;;)
+Line 3713 
 for (;;)
          case OP_NOT_DIGIT:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            GETCHARINC(c, eptr);
            if (c < 128 && (md->ctypes[c] & ctype_digit) != 0)
-             RRETURN(MATCH_NOMATCH);
+             MRRETURN(MATCH_NOMATCH);
            }
          break;
          case OP_DIGIT:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject ||
+           if (eptr >= md->end_subject)
-              *eptr >= 128 || (md->ctypes[*eptr++] & ctype_digit) == 0)
+             {
-             RRETURN(MATCH_NOMATCH);
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (*eptr >= 128 || (md->ctypes[*eptr++] & ctype_digit) == 0)
+             MRRETURN(MATCH_NOMATCH);
            /* No need to skip more bytes - we know it's a 1-byte character */
            }
          break;
-Line 3054 
 for (;;)
+Line 3741 
 for (;;)
          case OP_NOT_WHITESPACE:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject ||
+           if (eptr >= md->end_subject)
-              (*eptr < 128 && (md->ctypes[*eptr++] & ctype_space) != 0))
+             {
-             RRETURN(MATCH_NOMATCH);
+             SCHECK_PARTIAL();
-           while (eptr < md->end_subject && (*eptr & 0xc0) == 0x80) eptr++;
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (*eptr < 128 && (md->ctypes[*eptr] & ctype_space) != 0)
+             MRRETURN(MATCH_NOMATCH);
+           while (++eptr < md->end_subject && (*eptr & 0xc0) == 0x80);
            }
          break;
          case OP_WHITESPACE:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject ||
+           if (eptr >= md->end_subject)
-              *eptr >= 128 || (md->ctypes[*eptr++] & ctype_space) == 0)
+             {
-             RRETURN(MATCH_NOMATCH);
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (*eptr >= 128 || (md->ctypes[*eptr++] & ctype_space) == 0)
+             MRRETURN(MATCH_NOMATCH);
            /* No need to skip more bytes - we know it's a 1-byte character */
            }
          break;
-Line 3074 
 for (;;)
+Line 3769 
 for (;;)
          case OP_NOT_WORDCHAR:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject ||
+           if (eptr >= md->end_subject)
-              (*eptr < 128 && (md->ctypes[*eptr++] & ctype_word) != 0))
+             {
-             RRETURN(MATCH_NOMATCH);
+             SCHECK_PARTIAL();
-           while (eptr < md->end_subject && (*eptr & 0xc0) == 0x80) eptr++;
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (*eptr < 128 && (md->ctypes[*eptr] & ctype_word) != 0)
+             MRRETURN(MATCH_NOMATCH);
+           while (++eptr < md->end_subject && (*eptr & 0xc0) == 0x80);
            }
          break;
          case OP_WORDCHAR:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject ||
+           if (eptr >= md->end_subject)
-              *eptr >= 128 || (md->ctypes[*eptr++] & ctype_word) == 0)
+             {
-             RRETURN(MATCH_NOMATCH);
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (*eptr >= 128 || (md->ctypes[*eptr++] & ctype_word) == 0)
+             MRRETURN(MATCH_NOMATCH);
            /* No need to skip more bytes - we know it's a 1-byte character */
            }
          break;
-Line 3099 
 for (;;)
+Line 3802 
 for (;;)
  #endif     /* SUPPORT_UTF8 */
        /* Code for the non-UTF-8 case for minimum matching of operators other
-       than OP_PROP and OP_NOTPROP. We can assume that there are the minimum
+       than OP_PROP and OP_NOTPROP. */
-       number of bytes present, as this was tested above. */
        switch(ctype)
          {
          case OP_ANY:
-         if ((ims & PCRE_DOTALL) == 0)
+         for (i = 1; i <= min; i++)
            {
-           for (i = 1; i <= min; i++)
+           if (eptr >= md->end_subject)
              {
-             if (IS_NEWLINE(eptr)) RRETURN(MATCH_NOMATCH);
+             SCHECK_PARTIAL();
-             eptr++;
+             MRRETURN(MATCH_NOMATCH);
              }
+           if (IS_NEWLINE(eptr)) MRRETURN(MATCH_NOMATCH);
+           eptr++;
            }
-         else eptr += min;
          break;
-         case OP_ANYBYTE:
+         case OP_ALLANY:
+         if (eptr > md->end_subject - min)
+           {
+           SCHECK_PARTIAL();
+           MRRETURN(MATCH_NOMATCH);
+           }
          eptr += min;
          break;
-         /* Because of the CRLF case, we can't assume the minimum number of
+         case OP_ANYBYTE:
-         bytes are present in this case. */
+         if (eptr > md->end_subject - min)
+           {
+           SCHECK_PARTIAL();
+           MRRETURN(MATCH_NOMATCH);
+           }
+         eptr += min;
+         break;
          case OP_ANYNL:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            switch(*eptr++)
              {
-             default: RRETURN(MATCH_NOMATCH);
+             default: MRRETURN(MATCH_NOMATCH);
              case 0x000d:
              if (eptr < md->end_subject && *eptr == 0x0a) eptr++;
              break;
              case 0x000a:
+             break;
              case 0x000b:
              case 0x000c:
              case 0x0085:
+             if (md->bsr_anycrlf) MRRETURN(MATCH_NOMATCH);
              break;
              }
            }
-Line 3145 
 for (;;)
+Line 3866 
 for (;;)
          case OP_NOT_HSPACE:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            switch(*eptr++)
              {
              default: break;
              case 0x09:      /* HT */
              case 0x20:      /* SPACE */
              case 0xa0:      /* NBSP */
-             RRETURN(MATCH_NOMATCH);
+             MRRETURN(MATCH_NOMATCH);
              }
            }
          break;
-Line 3160 
 for (;;)
+Line 3885 
 for (;;)
          case OP_HSPACE:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            switch(*eptr++)
              {
-             default: RRETURN(MATCH_NOMATCH);
+             default: MRRETURN(MATCH_NOMATCH);
              case 0x09:      /* HT */
              case 0x20:      /* SPACE */
              case 0xa0:      /* NBSP */
-Line 3175 
 for (;;)
+Line 3904 
 for (;;)
          case OP_NOT_VSPACE:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            switch(*eptr++)
              {
              default: break;
-Line 3184 
 for (;;)
+Line 3917 
 for (;;)
              case 0x0c:      /* FF */
              case 0x0d:      /* CR */
              case 0x85:      /* NEL */
-             RRETURN(MATCH_NOMATCH);
+             MRRETURN(MATCH_NOMATCH);
              }
            }
          break;
-Line 3192 
 for (;;)
+Line 3925 
 for (;;)
          case OP_VSPACE:
          for (i = 1; i <= min; i++)
            {
-           if (eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            switch(*eptr++)
              {
-             default: RRETURN(MATCH_NOMATCH);
+             default: MRRETURN(MATCH_NOMATCH);
              case 0x0a:      /* LF */
              case 0x0b:      /* VT */
              case 0x0c:      /* FF */
-Line 3208 
 for (;;)
+Line 3945 
 for (;;)
          case OP_NOT_DIGIT:
          for (i = 1; i <= min; i++)
-           if ((md->ctypes[*eptr++] & ctype_digit) != 0) RRETURN(MATCH_NOMATCH);
+           {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if ((md->ctypes[*eptr++] & ctype_digit) != 0) MRRETURN(MATCH_NOMATCH);
+           }
          break;
          case OP_DIGIT:
          for (i = 1; i <= min; i++)
-           if ((md->ctypes[*eptr++] & ctype_digit) == 0) RRETURN(MATCH_NOMATCH);
+           {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if ((md->ctypes[*eptr++] & ctype_digit) == 0) MRRETURN(MATCH_NOMATCH);
+           }
          break;
          case OP_NOT_WHITESPACE:
          for (i = 1; i <= min; i++)
-           if ((md->ctypes[*eptr++] & ctype_space) != 0) RRETURN(MATCH_NOMATCH);
+           {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if ((md->ctypes[*eptr++] & ctype_space) != 0) MRRETURN(MATCH_NOMATCH);
+           }
          break;
          case OP_WHITESPACE:
          for (i = 1; i <= min; i++)
-           if ((md->ctypes[*eptr++] & ctype_space) == 0) RRETURN(MATCH_NOMATCH);
+           {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if ((md->ctypes[*eptr++] & ctype_space) == 0) MRRETURN(MATCH_NOMATCH);
+           }
          break;
          case OP_NOT_WORDCHAR:
          for (i = 1; i <= min; i++)
+           {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            if ((md->ctypes[*eptr++] & ctype_word) != 0)
-             RRETURN(MATCH_NOMATCH);
+             MRRETURN(MATCH_NOMATCH);
+           }
          break;
          case OP_WORDCHAR:
          for (i = 1; i <= min; i++)
+           {
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            if ((md->ctypes[*eptr++] & ctype_word) == 0)
-             RRETURN(MATCH_NOMATCH);
+             MRRETURN(MATCH_NOMATCH);
+           }
          break;
          default:
-Line 3263 
 for (;;)
+Line 4042 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM36);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-             if (fi >= max || eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINC(c, eptr);
-             if (prop_fail_result) RRETURN(MATCH_NOMATCH);
+             if (prop_fail_result) MRRETURN(MATCH_NOMATCH);
              }
            /* Control never gets here */
-Line 3274 
 for (;;)
+Line 4058 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM37);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-             if (fi >= max || eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINC(c, eptr);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_chartype = UCD_CHARTYPE(c);
              if ((prop_chartype == ucp_Lu ||
                   prop_chartype == ucp_Ll ||
                   prop_chartype == ucp_Lt) == prop_fail_result)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              }
            /* Control never gets here */
-Line 3289 
 for (;;)
+Line 4078 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM38);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-             if (fi >= max || eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINC(c, eptr);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_category = UCD_CATEGORY(c);
              if ((prop_category == prop_value) == prop_fail_result)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              }
            /* Control never gets here */
-Line 3302 
 for (;;)
+Line 4096 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM39);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-             if (fi >= max || eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINC(c, eptr);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_chartype = UCD_CHARTYPE(c);
              if ((prop_chartype == prop_value) == prop_fail_result)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              }
            /* Control never gets here */
-Line 3315 
 for (;;)
+Line 4114 
 for (;;)
              {
              RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM40);
              if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-             if (fi >= max || eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+             if (fi >= max) MRRETURN(MATCH_NOMATCH);
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               MRRETURN(MATCH_NOMATCH);
+               }
              GETCHARINC(c, eptr);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_script = UCD_SCRIPT(c);
              if ((prop_script == prop_value) == prop_fail_result)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              }
            /* Control never gets here */
-Line 3337 
 for (;;)
+Line 4141 
 for (;;)
            {
            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM41);
            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-           if (fi >= max || eptr >= md->end_subject) RRETURN(MATCH_NOMATCH);
+           if (fi >= max) MRRETURN(MATCH_NOMATCH);
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
            GETCHARINCTEST(c, eptr);
-           prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+           prop_category = UCD_CATEGORY(c);
-           if (prop_category == ucp_M) RRETURN(MATCH_NOMATCH);
+           if (prop_category == ucp_M) MRRETURN(MATCH_NOMATCH);
            while (eptr < md->end_subject)
              {
              int len = 1;
-             if (!utf8) c = *eptr; else
+             if (!utf8) c = *eptr;
-               {
+               else { GETCHARLEN(c, eptr, len); }
-               GETCHARLEN(c, eptr, len);
+             prop_category = UCD_CATEGORY(c);
-               }
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
              if (prop_category != ucp_M) break;
              eptr += len;
              }
-Line 3366 
 for (;;)
+Line 4173 
 for (;;)
            {
            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM42);
            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-           if (fi >= max || eptr >= md->end_subject ||
+           if (fi >= max) MRRETURN(MATCH_NOMATCH);
-                (ctype == OP_ANY && (ims & PCRE_DOTALL) == 0 &&
+           if (eptr >= md->end_subject)
-                 IS_NEWLINE(eptr)))
+             {
-             RRETURN(MATCH_NOMATCH);
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (ctype == OP_ANY && IS_NEWLINE(eptr))
+             MRRETURN(MATCH_NOMATCH);
            GETCHARINC(c, eptr);
            switch(ctype)
              {
-             case OP_ANY:        /* This is the DOTALL case */
+             case OP_ANY:        /* This is the non-NL case */
-             break;
+             case OP_ALLANY:
              case OP_ANYBYTE:
              break;
              case OP_ANYNL:
              switch(c)
                {
-               default: RRETURN(MATCH_NOMATCH);
+               default: MRRETURN(MATCH_NOMATCH);
                case 0x000d:
                if (eptr < md->end_subject && *eptr == 0x0a) eptr++;
                break;
                case 0x000a:
+               break;
                case 0x000b:
                case 0x000c:
                case 0x0085:
                case 0x2028:
                case 0x2029:
+               if (md->bsr_anycrlf) MRRETURN(MATCH_NOMATCH);
                break;
                }
              break;
-Line 3420 
 for (;;)
+Line 4232 
 for (;;)
                case 0x202f:    /* NARROW NO-BREAK SPACE */
                case 0x205f:    /* MEDIUM MATHEMATICAL SPACE */
                case 0x3000:    /* IDEOGRAPHIC SPACE */
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
                }
              break;
              case OP_HSPACE:
              switch(c)
                {
-               default: RRETURN(MATCH_NOMATCH);
+               default: MRRETURN(MATCH_NOMATCH);
                case 0x09:      /* HT */
                case 0x20:      /* SPACE */
                case 0xa0:      /* NBSP */
-Line 3462 
 for (;;)
+Line 4274 
 for (;;)
                case 0x85:      /* NEL */
                case 0x2028:    /* LINE SEPARATOR */
                case 0x2029:    /* PARAGRAPH SEPARATOR */
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
                }
              break;
              case OP_VSPACE:
              switch(c)
                {
-               default: RRETURN(MATCH_NOMATCH);
+               default: MRRETURN(MATCH_NOMATCH);
                case 0x0a:      /* LF */
                case 0x0b:      /* VT */
                case 0x0c:      /* FF */
-Line 3483 
 for (;;)
+Line 4295 
 for (;;)
              case OP_NOT_DIGIT:
              if (c < 256 && (md->ctypes[c] & ctype_digit) != 0)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              break;
              case OP_DIGIT:
              if (c >= 256 || (md->ctypes[c] & ctype_digit) == 0)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              break;
              case OP_NOT_WHITESPACE:
              if (c < 256 && (md->ctypes[c] & ctype_space) != 0)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              break;
              case OP_WHITESPACE:
              if  (c >= 256 || (md->ctypes[c] & ctype_space) == 0)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              break;
              case OP_NOT_WORDCHAR:
              if (c < 256 && (md->ctypes[c] & ctype_word) != 0)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              break;
              case OP_WORDCHAR:
              if (c >= 256 || (md->ctypes[c] & ctype_word) == 0)
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
              break;
              default:
-Line 3524 
 for (;;)
+Line 4336 
 for (;;)
            {
            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM43);
            if (rrc != MATCH_NOMATCH) RRETURN(rrc);
-           if (fi >= max || eptr >= md->end_subject ||
+           if (fi >= max) MRRETURN(MATCH_NOMATCH);
-                ((ims & PCRE_DOTALL) == 0 && IS_NEWLINE(eptr)))
+           if (eptr >= md->end_subject)
-             RRETURN(MATCH_NOMATCH);
+             {
+             SCHECK_PARTIAL();
+             MRRETURN(MATCH_NOMATCH);
+             }
+           if (ctype == OP_ANY && IS_NEWLINE(eptr))
+             MRRETURN(MATCH_NOMATCH);
            c = *eptr++;
            switch(ctype)
              {
-             case OP_ANY:   /* This is the DOTALL case */
+             case OP_ANY:     /* This is the non-NL case */
-             break;
+             case OP_ALLANY:
              case OP_ANYBYTE:
              break;
              case OP_ANYNL:
              switch(c)
                {
-               default: RRETURN(MATCH_NOMATCH);
+               default: MRRETURN(MATCH_NOMATCH);
                case 0x000d:
                if (eptr < md->end_subject && *eptr == 0x0a) eptr++;
                break;
                case 0x000a:
+               break;
                case 0x000b:
                case 0x000c:
                case 0x0085:
+               if (md->bsr_anycrlf) MRRETURN(MATCH_NOMATCH);
                break;
                }
              break;
-Line 3559 
 for (;;)
+Line 4378 
 for (;;)
                case 0x09:      /* HT */
                case 0x20:      /* SPACE */
                case 0xa0:      /* NBSP */
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
                }
              break;
              case OP_HSPACE:
              switch(c)
                {
-               default: RRETURN(MATCH_NOMATCH);
+               default: MRRETURN(MATCH_NOMATCH);
                case 0x09:      /* HT */
                case 0x20:      /* SPACE */
                case 0xa0:      /* NBSP */
-Line 3583 
 for (;;)
+Line 4402 
 for (;;)
                case 0x0c:      /* FF */
                case 0x0d:      /* CR */
                case 0x85:      /* NEL */
-               RRETURN(MATCH_NOMATCH);
+               MRRETURN(MATCH_NOMATCH);
                }
              break;
              case OP_VSPACE:
              switch(c)
                {
-               default: RRETURN(MATCH_NOMATCH);
+               default: MRRETURN(MATCH_NOMATCH);
                case 0x0a:      /* LF */
                case 0x0b:      /* VT */
                case 0x0c:      /* FF */
-Line 3601 
 for (;;)
+Line 4420 
 for (;;)
              break;
              case OP_NOT_DIGIT:
-             if ((md->ctypes[c] & ctype_digit) != 0) RRETURN(MATCH_NOMATCH);
+             if ((md->ctypes[c] & ctype_digit) != 0) MRRETURN(MATCH_NOMATCH);
              break;
              case OP_DIGIT:
-             if ((md->ctypes[c] & ctype_digit) == 0) RRETURN(MATCH_NOMATCH);
+             if ((md->ctypes[c] & ctype_digit) == 0) MRRETURN(MATCH_NOMATCH);
              break;
              case OP_NOT_WHITESPACE:
-             if ((md->ctypes[c] & ctype_space) != 0) RRETURN(MATCH_NOMATCH);
+             if ((md->ctypes[c] & ctype_space) != 0) MRRETURN(MATCH_NOMATCH);
              break;
              case OP_WHITESPACE:
-             if  ((md->ctypes[c] & ctype_space) == 0) RRETURN(MATCH_NOMATCH);
+             if  ((md->ctypes[c] & ctype_space) == 0) MRRETURN(MATCH_NOMATCH);
              break;
              case OP_NOT_WORDCHAR:
-             if ((md->ctypes[c] & ctype_word) != 0) RRETURN(MATCH_NOMATCH);
+             if ((md->ctypes[c] & ctype_word) != 0) MRRETURN(MATCH_NOMATCH);
              break;
              case OP_WORDCHAR:
-             if ((md->ctypes[c] & ctype_word) == 0) RRETURN(MATCH_NOMATCH);
+             if ((md->ctypes[c] & ctype_word) == 0) MRRETURN(MATCH_NOMATCH);
              break;
              default:
-Line 3649 
 for (;;)
+Line 4468 
 for (;;)
            for (i = min; i < max; i++)
              {
              int len = 1;
-             if (eptr >= md->end_subject) break;
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               break;
+               }
              GETCHARLEN(c, eptr, len);
              if (prop_fail_result) break;
              eptr+= len;
-Line 3660 
 for (;;)
+Line 4483 
 for (;;)
            for (i = min; i < max; i++)
              {
              int len = 1;
-             if (eptr >= md->end_subject) break;
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               break;
+               }
              GETCHARLEN(c, eptr, len);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_chartype = UCD_CHARTYPE(c);
              if ((prop_chartype == ucp_Lu ||
                   prop_chartype == ucp_Ll ||
                   prop_chartype == ucp_Lt) == prop_fail_result)
-Line 3675 
 for (;;)
+Line 4502 
 for (;;)
            for (i = min; i < max; i++)
              {
              int len = 1;
-             if (eptr >= md->end_subject) break;
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               break;
+               }
              GETCHARLEN(c, eptr, len);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_category = UCD_CATEGORY(c);
              if ((prop_category == prop_value) == prop_fail_result)
                break;
              eptr+= len;
-Line 3688 
 for (;;)
+Line 4519 
 for (;;)
            for (i = min; i < max; i++)
              {
              int len = 1;
-             if (eptr >= md->end_subject) break;
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               break;
+               }
              GETCHARLEN(c, eptr, len);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_chartype = UCD_CHARTYPE(c);
              if ((prop_chartype == prop_value) == prop_fail_result)
                break;
              eptr+= len;
-Line 3701 
 for (;;)
+Line 4536 
 for (;;)
            for (i = min; i < max; i++)
              {
              int len = 1;
-             if (eptr >= md->end_subject) break;
+             if (eptr >= md->end_subject)
+               {
+               SCHECK_PARTIAL();
+               break;
+               }
              GETCHARLEN(c, eptr, len);
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_script = UCD_SCRIPT(c);
              if ((prop_script == prop_value) == prop_fail_result)
                break;
              eptr+= len;
-Line 3730 
 for (;;)
+Line 4569 
 for (;;)
          {
          for (i = min; i < max; i++)
            {
-           if (eptr >= md->end_subject) break;
+           if (eptr >= md->end_subject)
+             {
+             SCHECK_PARTIAL();
+             break;
+             }
            GETCHARINCTEST(c, eptr);
-           prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+           prop_category = UCD_CATEGORY(c);
            if (prop_category == ucp_M) break;
            while (eptr < md->end_subject)
              {
-Line 3741 
 for (;;)
+Line 4584 
 for (;;)
                {
                GETCHARLEN(c, eptr, len);
                }
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_category = UCD_CATEGORY(c);
              if (prop_category != ucp_M) break;
              eptr += len;
              }
-Line 3750 
 for (;;)
+Line 4593 
 for (;;)
          /* eptr is now past the end of the maximum run */
          if (possessive) continue;
          for(;;)
            {
            RMATCH(eptr, ecode, offset_top, md, ims, eptrb, 0, RM45);
-Line 3763 
 for (;;)
+Line 4607 
 for (;;)
                BACKCHAR(eptr);
                GETCHARLEN(c, eptr, len);
                }
-             prop_category = _pcre_ucp_findprop(c, &prop_chartype, &prop_script);
+             prop_category = UCD_CATEGORY(c);
              if (prop_category != ucp_M) break;
              eptr--;
              }
-Line 3783 
 for (;;)
+Line 4627 
 for (;;)
            case OP_ANY:
            if (max < INT_MAX)
              {
-             if ((ims & PCRE_DOTALL) == 0)
+             for (i = min; i < max; i++)
-               {
-               for (i = min; i < max; i++)
-                 {
-                 if (eptr >= md->end_subject || IS_NEWLINE(eptr)) break;
-                 eptr++;
-                 while (eptr < md->end_subject && (*eptr & 0xc0) == 0x80) eptr++;
-                 }
-               }
-             else
                {
-               for (i = min; i < max; i++)
+               if (eptr >= md->end_subject)
                  {
-                 if (eptr >= md->end_subject) break;
+                 SCHECK_PARTIAL();
-                 eptr++;
+                 break;
-                 while (eptr < md->end_subject && (*eptr & 0xc0) == 0x80) eptr++;
                  }
+               if (IS_NEWLINE(eptr)) break;
+               eptr++;
+               while (eptr < md->end_subject && (*eptr & 0xc0) == 0x80) eptr++;
                }
              }
-Line 3807 
 for (;;)
+Line 4644 
 for (;;)
            else
              {
-             if ((ims & PCRE_DOTALL) == 0)
+             for (i = min; i < max; i++)
                {
-               for (i = min; i < max; i++)
+               if (eptr >= md->end_subject)
                  {
-                 if (eptr >= md->end_subject || IS_NEWLINE(eptr)) break;
+                 SCHECK_PARTIAL();
-                 eptr++;
+                 break;
-                 while (eptr < md->end_subject && (*eptr & 0xc0) == 0x80) eptr++;
                  }
+               if (IS_NEWLINE(eptr)) break;
+               eptr++;
+               while (eptr < md->end_subject && (*eptr & 0xc0) == 0x80) eptr++;
                }
-             else
+             }
+           break;