/[pcre]/code/trunk/pcre_dfa_exec.c
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revision 168 by ph10, Tue May 29 15:18:18 2007 UTC revision 1055 by chpe, Tue Oct 16 15:53:30 2012 UTC
# Line 3  Line 3 
3  *************************************************/  *************************************************/
4    
5  /* PCRE is a library of functions to support regular expressions whose syntax  /* PCRE is a library of functions to support regular expressions whose syntax
6  and semantics are as close as possible to those of the Perl 5 language.  and semantics are as close as possible to those of the Perl 5 language (but see
7    below for why this module is different).
8    
9                         Written by Philip Hazel                         Written by Philip Hazel
10             Copyright (c) 1997-2007 University of Cambridge             Copyright (c) 1997-2012 University of Cambridge
11    
12  -----------------------------------------------------------------------------  -----------------------------------------------------------------------------
13  Redistribution and use in source and binary forms, with or without  Redistribution and use in source and binary forms, with or without
# Line 37  POSSIBILITY OF SUCH DAMAGE. Line 38  POSSIBILITY OF SUCH DAMAGE.
38  -----------------------------------------------------------------------------  -----------------------------------------------------------------------------
39  */  */
40    
   
41  /* This module contains the external function pcre_dfa_exec(), which is an  /* This module contains the external function pcre_dfa_exec(), which is an
42  alternative matching function that uses a sort of DFA algorithm (not a true  alternative matching function that uses a sort of DFA algorithm (not a true
43  FSM). This is NOT Perl- compatible, but it has advantages in certain  FSM). This is NOT Perl-compatible, but it has advantages in certain
44  applications. */  applications. */
45    
46    
47    /* NOTE ABOUT PERFORMANCE: A user of this function sent some code that improved
48    the performance of his patterns greatly. I could not use it as it stood, as it
49    was not thread safe, and made assumptions about pattern sizes. Also, it caused
50    test 7 to loop, and test 9 to crash with a segfault.
51    
52    The issue is the check for duplicate states, which is done by a simple linear
53    search up the state list. (Grep for "duplicate" below to find the code.) For
54    many patterns, there will never be many states active at one time, so a simple
55    linear search is fine. In patterns that have many active states, it might be a
56    bottleneck. The suggested code used an indexing scheme to remember which states
57    had previously been used for each character, and avoided the linear search when
58    it knew there was no chance of a duplicate. This was implemented when adding
59    states to the state lists.
60    
61    I wrote some thread-safe, not-limited code to try something similar at the time
62    of checking for duplicates (instead of when adding states), using index vectors
63    on the stack. It did give a 13% improvement with one specially constructed
64    pattern for certain subject strings, but on other strings and on many of the
65    simpler patterns in the test suite it did worse. The major problem, I think,
66    was the extra time to initialize the index. This had to be done for each call
67    of internal_dfa_exec(). (The supplied patch used a static vector, initialized
68    only once - I suspect this was the cause of the problems with the tests.)
69    
70    Overall, I concluded that the gains in some cases did not outweigh the losses
71    in others, so I abandoned this code. */
72    
73    
74    
75    #ifdef HAVE_CONFIG_H
76    #include "config.h"
77    #endif
78    
79  #define NLBLOCK md             /* Block containing newline information */  #define NLBLOCK md             /* Block containing newline information */
80  #define PSSTART start_subject  /* Field containing processed string start */  #define PSSTART start_subject  /* Field containing processed string start */
81  #define PSEND   end_subject    /* Field containing processed string end */  #define PSEND   end_subject    /* Field containing processed string end */
# Line 56  applications. */ Line 88  applications. */
88  #define SP "                   "  #define SP "                   "
89    
90    
   
91  /*************************************************  /*************************************************
92  *      Code parameters and static tables         *  *      Code parameters and static tables         *
93  *************************************************/  *************************************************/
94    
95  /* These are offsets that are used to turn the OP_TYPESTAR and friends opcodes  /* These are offsets that are used to turn the OP_TYPESTAR and friends opcodes
96  into others, under special conditions. A gap of 20 between the blocks should be  into others, under special conditions. A gap of 20 between the blocks should be
97  enough. */  enough. The resulting opcodes don't have to be less than 256 because they are
98    never stored, so we push them well clear of the normal opcodes. */
99    
100  #define OP_PROP_EXTRA 100  #define OP_PROP_EXTRA       300
101  #define OP_EXTUNI_EXTRA 120  #define OP_EXTUNI_EXTRA     320
102  #define OP_ANYNL_EXTRA 140  #define OP_ANYNL_EXTRA      340
103    #define OP_HSPACE_EXTRA     360
104    #define OP_VSPACE_EXTRA     380
105    
106    
107  /* This table identifies those opcodes that are followed immediately by a  /* This table identifies those opcodes that are followed immediately by a
108  character that is to be tested in some way. This makes is possible to  character that is to be tested in some way. This makes it possible to
109  centralize the loading of these characters. In the case of Type * etc, the  centralize the loading of these characters. In the case of Type * etc, the
110  "character" is the opcode for \D, \d, \S, \s, \W, or \w, which will always be a  "character" is the opcode for \D, \d, \S, \s, \W, or \w, which will always be a
111  small value. ***NOTE*** If the start of this table is modified, the two tables  small value. Non-zero values in the table are the offsets from the opcode where
112  that follow must also be modified. */  the character is to be found. ***NOTE*** If the start of this table is
113    modified, the three tables that follow must also be modified. */
114    
115  static uschar coptable[] = {  static const pcre_uint8 coptable[] = {
116    0,                             /* End                                    */    0,                             /* End                                    */
117    0, 0, 0, 0, 0,                 /* \A, \G, \K, \B, \b                     */    0, 0, 0, 0, 0,                 /* \A, \G, \K, \B, \b                     */
118    0, 0, 0, 0, 0, 0,              /* \D, \d, \S, \s, \W, \w                 */    0, 0, 0, 0, 0, 0,              /* \D, \d, \S, \s, \W, \w                 */
119    0, 0,                          /* Any, Anybyte                           */    0, 0, 0,                       /* Any, AllAny, Anybyte                   */
120    0, 0, 0, 0,                    /* NOTPROP, PROP, EXTUNI, ANYNL           */    0, 0,                          /* \P, \p                                 */
121    0, 0, 0, 0, 0,                 /* \Z, \z, Opt, ^, $                      */    0, 0, 0, 0, 0,                 /* \R, \H, \h, \V, \v                     */
122      0,                             /* \X                                     */
123      0, 0, 0, 0, 0, 0,              /* \Z, \z, ^, ^M, $, $M                   */
124    1,                             /* Char                                   */    1,                             /* Char                                   */
125    1,                             /* Charnc                                 */    1,                             /* Chari                                  */
126    1,                             /* not                                    */    1,                             /* not                                    */
127      1,                             /* noti                                   */
128    /* Positive single-char repeats                                          */    /* Positive single-char repeats                                          */
129    1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */    1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */
130    3, 3, 3,                       /* upto, minupto, exact                   */    1+IMM2_SIZE, 1+IMM2_SIZE,      /* upto, minupto                          */
131    1, 1, 1, 3,                    /* *+, ++, ?+, upto+                      */    1+IMM2_SIZE,                   /* exact                                  */
132      1, 1, 1, 1+IMM2_SIZE,          /* *+, ++, ?+, upto+                      */
133      1, 1, 1, 1, 1, 1,              /* *I, *?I, +I, +?I, ?I, ??I              */
134      1+IMM2_SIZE, 1+IMM2_SIZE,      /* upto I, minupto I                      */
135      1+IMM2_SIZE,                   /* exact I                                */
136      1, 1, 1, 1+IMM2_SIZE,          /* *+I, ++I, ?+I, upto+I                  */
137    /* Negative single-char repeats - only for chars < 256                   */    /* Negative single-char repeats - only for chars < 256                   */
138    1, 1, 1, 1, 1, 1,              /* NOT *, *?, +, +?, ?, ??                */    1, 1, 1, 1, 1, 1,              /* NOT *, *?, +, +?, ?, ??                */
139    3, 3, 3,                       /* NOT upto, minupto, exact               */    1+IMM2_SIZE, 1+IMM2_SIZE,      /* NOT upto, minupto                      */
140    1, 1, 1, 3,                    /* NOT *+, ++, ?+, updo+                  */    1+IMM2_SIZE,                   /* NOT exact                              */
141      1, 1, 1, 1+IMM2_SIZE,          /* NOT *+, ++, ?+, upto+                  */
142      1, 1, 1, 1, 1, 1,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */
143      1+IMM2_SIZE, 1+IMM2_SIZE,      /* NOT upto I, minupto I                  */
144      1+IMM2_SIZE,                   /* NOT exact I                            */
145      1, 1, 1, 1+IMM2_SIZE,          /* NOT *+I, ++I, ?+I, upto+I              */
146    /* Positive type repeats                                                 */    /* Positive type repeats                                                 */
147    1, 1, 1, 1, 1, 1,              /* Type *, *?, +, +?, ?, ??               */    1, 1, 1, 1, 1, 1,              /* Type *, *?, +, +?, ?, ??               */
148    3, 3, 3,                       /* Type upto, minupto, exact              */    1+IMM2_SIZE, 1+IMM2_SIZE,      /* Type upto, minupto                     */
149    1, 1, 1, 3,                    /* Type *+, ++, ?+, upto+                 */    1+IMM2_SIZE,                   /* Type exact                             */
150      1, 1, 1, 1+IMM2_SIZE,          /* Type *+, ++, ?+, upto+                 */
151    /* Character class & ref repeats                                         */    /* Character class & ref repeats                                         */
152    0, 0, 0, 0, 0, 0,              /* *, *?, +, +?, ?, ??                    */    0, 0, 0, 0, 0, 0,              /* *, *?, +, +?, ?, ??                    */
153    0, 0,                          /* CRRANGE, CRMINRANGE                    */    0, 0,                          /* CRRANGE, CRMINRANGE                    */
# Line 106  static uschar coptable[] = { Line 155  static uschar coptable[] = {
155    0,                             /* NCLASS                                 */    0,                             /* NCLASS                                 */
156    0,                             /* XCLASS - variable length               */    0,                             /* XCLASS - variable length               */
157    0,                             /* REF                                    */    0,                             /* REF                                    */
158      0,                             /* REFI                                   */
159    0,                             /* RECURSE                                */    0,                             /* RECURSE                                */
160    0,                             /* CALLOUT                                */    0,                             /* CALLOUT                                */
161    0,                             /* Alt                                    */    0,                             /* Alt                                    */
162    0,                             /* Ket                                    */    0,                             /* Ket                                    */
163    0,                             /* KetRmax                                */    0,                             /* KetRmax                                */
164    0,                             /* KetRmin                                */    0,                             /* KetRmin                                */
165      0,                             /* KetRpos                                */
166      0,                             /* Reverse                                */
167    0,                             /* Assert                                 */    0,                             /* Assert                                 */
168    0,                             /* Assert not                             */    0,                             /* Assert not                             */
169    0,                             /* Assert behind                          */    0,                             /* Assert behind                          */
170    0,                             /* Assert behind not                      */    0,                             /* Assert behind not                      */
171      0, 0,                          /* ONCE, ONCE_NC                          */
172      0, 0, 0, 0, 0,                 /* BRA, BRAPOS, CBRA, CBRAPOS, COND       */
173      0, 0, 0, 0, 0,                 /* SBRA, SBRAPOS, SCBRA, SCBRAPOS, SCOND  */
174      0, 0,                          /* CREF, NCREF                            */
175      0, 0,                          /* RREF, NRREF                            */
176      0,                             /* DEF                                    */
177      0, 0, 0,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */
178      0, 0, 0,                       /* MARK, PRUNE, PRUNE_ARG                 */
179      0, 0, 0, 0,                    /* SKIP, SKIP_ARG, THEN, THEN_ARG         */
180      0, 0, 0, 0,                    /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT    */
181      0, 0                           /* CLOSE, SKIPZERO  */
182    };
183    
184    /* This table identifies those opcodes that inspect a character. It is used to
185    remember the fact that a character could have been inspected when the end of
186    the subject is reached. ***NOTE*** If the start of this table is modified, the
187    two tables that follow must also be modified. */
188    
189    static const pcre_uint8 poptable[] = {
190      0,                             /* End                                    */
191      0, 0, 0, 1, 1,                 /* \A, \G, \K, \B, \b                     */
192      1, 1, 1, 1, 1, 1,              /* \D, \d, \S, \s, \W, \w                 */
193      1, 1, 1,                       /* Any, AllAny, Anybyte                   */
194      1, 1,                          /* \P, \p                                 */
195      1, 1, 1, 1, 1,                 /* \R, \H, \h, \V, \v                     */
196      1,                             /* \X                                     */
197      0, 0, 0, 0, 0, 0,              /* \Z, \z, ^, ^M, $, $M                   */
198      1,                             /* Char                                   */
199      1,                             /* Chari                                  */
200      1,                             /* not                                    */
201      1,                             /* noti                                   */
202      /* Positive single-char repeats                                          */
203      1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */
204      1, 1, 1,                       /* upto, minupto, exact                   */
205      1, 1, 1, 1,                    /* *+, ++, ?+, upto+                      */
206      1, 1, 1, 1, 1, 1,              /* *I, *?I, +I, +?I, ?I, ??I              */
207      1, 1, 1,                       /* upto I, minupto I, exact I             */
208      1, 1, 1, 1,                    /* *+I, ++I, ?+I, upto+I                  */
209      /* Negative single-char repeats - only for chars < 256                   */
210      1, 1, 1, 1, 1, 1,              /* NOT *, *?, +, +?, ?, ??                */
211      1, 1, 1,                       /* NOT upto, minupto, exact               */
212      1, 1, 1, 1,                    /* NOT *+, ++, ?+, upto+                  */
213      1, 1, 1, 1, 1, 1,              /* NOT *I, *?I, +I, +?I, ?I, ??I          */
214      1, 1, 1,                       /* NOT upto I, minupto I, exact I         */
215      1, 1, 1, 1,                    /* NOT *+I, ++I, ?+I, upto+I              */
216      /* Positive type repeats                                                 */
217      1, 1, 1, 1, 1, 1,              /* Type *, *?, +, +?, ?, ??               */
218      1, 1, 1,                       /* Type upto, minupto, exact              */
219      1, 1, 1, 1,                    /* Type *+, ++, ?+, upto+                 */
220      /* Character class & ref repeats                                         */
221      1, 1, 1, 1, 1, 1,              /* *, *?, +, +?, ?, ??                    */
222      1, 1,                          /* CRRANGE, CRMINRANGE                    */
223      1,                             /* CLASS                                  */
224      1,                             /* NCLASS                                 */
225      1,                             /* XCLASS - variable length               */
226      0,                             /* REF                                    */
227      0,                             /* REFI                                   */
228      0,                             /* RECURSE                                */
229      0,                             /* CALLOUT                                */
230      0,                             /* Alt                                    */
231      0,                             /* Ket                                    */
232      0,                             /* KetRmax                                */
233      0,                             /* KetRmin                                */
234      0,                             /* KetRpos                                */
235    0,                             /* Reverse                                */    0,                             /* Reverse                                */
236    0, 0, 0, 0,                    /* ONCE, BRA, CBRA, COND                  */    0,                             /* Assert                                 */
237    0, 0, 0,                       /* SBRA, SCBRA, SCOND                     */    0,                             /* Assert not                             */
238    0,                             /* CREF                                   */    0,                             /* Assert behind                          */
239    0,                             /* RREF                                   */    0,                             /* Assert behind not                      */
240      0, 0,                          /* ONCE, ONCE_NC                          */
241      0, 0, 0, 0, 0,                 /* BRA, BRAPOS, CBRA, CBRAPOS, COND       */
242      0, 0, 0, 0, 0,                 /* SBRA, SBRAPOS, SCBRA, SCBRAPOS, SCOND  */
243      0, 0,                          /* CREF, NCREF                            */
244      0, 0,                          /* RREF, NRREF                            */
245    0,                             /* DEF                                    */    0,                             /* DEF                                    */
246    0, 0                           /* BRAZERO, BRAMINZERO                    */    0, 0, 0,                       /* BRAZERO, BRAMINZERO, BRAPOSZERO        */
247      0, 0, 0,                       /* MARK, PRUNE, PRUNE_ARG                 */
248      0, 0, 0, 0,                    /* SKIP, SKIP_ARG, THEN, THEN_ARG         */
249      0, 0, 0, 0,                    /* COMMIT, FAIL, ACCEPT, ASSERT_ACCEPT    */
250      0, 0                           /* CLOSE, SKIPZERO                        */
251  };  };
252    
253  /* These 2 tables allow for compact code for testing for \D, \d, \S, \s, \W,  /* These 2 tables allow for compact code for testing for \D, \d, \S, \s, \W,
254  and \w */  and \w */
255    
256  static uschar toptable1[] = {  static const pcre_uint8 toptable1[] = {
257    0, 0, 0, 0, 0, 0,    0, 0, 0, 0, 0, 0,
258    ctype_digit, ctype_digit,    ctype_digit, ctype_digit,
259    ctype_space, ctype_space,    ctype_space, ctype_space,
260    ctype_word,  ctype_word,    ctype_word,  ctype_word,
261    0                               /* OP_ANY */    0, 0                            /* OP_ANY, OP_ALLANY */
262  };  };
263    
264  static uschar toptable2[] = {  static const pcre_uint8 toptable2[] = {
265    0, 0, 0, 0, 0, 0,    0, 0, 0, 0, 0, 0,
266    ctype_digit, 0,    ctype_digit, 0,
267    ctype_space, 0,    ctype_space, 0,
268    ctype_word,  0,    ctype_word,  0,
269    1                               /* OP_ANY */    1, 1                            /* OP_ANY, OP_ALLANY */
270  };  };
271    
272    
# Line 153  these structures in, is a vector of ints Line 278  these structures in, is a vector of ints
278  typedef struct stateblock {  typedef struct stateblock {
279    int offset;                     /* Offset to opcode */    int offset;                     /* Offset to opcode */
280    int count;                      /* Count for repeats */    int count;                      /* Count for repeats */
   int ims;                        /* ims flag bits */  
281    int data;                       /* Some use extra data */    int data;                       /* Some use extra data */
282  } stateblock;  } stateblock;
283    
284  #define INTS_PER_STATEBLOCK  (sizeof(stateblock)/sizeof(int))  #define INTS_PER_STATEBLOCK  (int)(sizeof(stateblock)/sizeof(int))
285    
286    
287  #ifdef DEBUG  #ifdef PCRE_DEBUG
288  /*************************************************  /*************************************************
289  *             Print character string             *  *             Print character string             *
290  *************************************************/  *************************************************/
# Line 176  Returns:       nothing Line 300  Returns:       nothing
300  */  */
301    
302  static void  static void
303  pchars(unsigned char *p, int length, FILE *f)  pchars(const pcre_uchar *p, int length, FILE *f)
304  {  {
305  int c;  int c;
306  while (length-- > 0)  while (length-- > 0)
# Line 209  Arguments: Line 333  Arguments:
333    offsetcount       size of same    offsetcount       size of same
334    workspace         vector of workspace    workspace         vector of workspace
335    wscount           size of same    wscount           size of same
   ims               the current ims flags  
336    rlevel            function call recursion level    rlevel            function call recursion level
   recursing         regex recursive call level  
337    
338  Returns:            > 0 =>  Returns:            > 0 => number of match offset pairs placed in offsets
339                      = 0 =>                      = 0 => offsets overflowed; longest matches are present
340                       -1 => failed to match                       -1 => failed to match
341                     < -1 => some kind of unexpected problem                     < -1 => some kind of unexpected problem
342    
# Line 226  for the current character, one for the f Line 348  for the current character, one for the f
348      { \      { \
349      next_active_state->offset = (x); \      next_active_state->offset = (x); \
350      next_active_state->count  = (y); \      next_active_state->count  = (y); \
     next_active_state->ims    = ims; \  
351      next_active_state++; \      next_active_state++; \
352      DPRINTF(("%.*sADD_ACTIVE(%d,%d)\n", rlevel*2-2, SP, (x), (y))); \      DPRINTF(("%.*sADD_ACTIVE(%d,%d)\n", rlevel*2-2, SP, (x), (y))); \
353      } \      } \
# Line 237  for the current character, one for the f Line 358  for the current character, one for the f
358      { \      { \
359      next_active_state->offset = (x); \      next_active_state->offset = (x); \
360      next_active_state->count  = (y); \      next_active_state->count  = (y); \
     next_active_state->ims    = ims; \  
361      next_active_state->data   = (z); \      next_active_state->data   = (z); \
362      next_active_state++; \      next_active_state++; \
363      DPRINTF(("%.*sADD_ACTIVE_DATA(%d,%d,%d)\n", rlevel*2-2, SP, (x), (y), (z))); \      DPRINTF(("%.*sADD_ACTIVE_DATA(%d,%d,%d)\n", rlevel*2-2, SP, (x), (y), (z))); \
# Line 249  for the current character, one for the f Line 369  for the current character, one for the f
369      { \      { \
370      next_new_state->offset = (x); \      next_new_state->offset = (x); \
371      next_new_state->count  = (y); \      next_new_state->count  = (y); \
     next_new_state->ims    = ims; \  
372      next_new_state++; \      next_new_state++; \
373      DPRINTF(("%.*sADD_NEW(%d,%d)\n", rlevel*2-2, SP, (x), (y))); \      DPRINTF(("%.*sADD_NEW(%d,%d)\n", rlevel*2-2, SP, (x), (y))); \
374      } \      } \
# Line 260  for the current character, one for the f Line 379  for the current character, one for the f
379      { \      { \
380      next_new_state->offset = (x); \      next_new_state->offset = (x); \
381      next_new_state->count  = (y); \      next_new_state->count  = (y); \
     next_new_state->ims    = ims; \  
382      next_new_state->data   = (z); \      next_new_state->data   = (z); \
383      next_new_state++; \      next_new_state++; \
384      DPRINTF(("%.*sADD_NEW_DATA(%d,%d,%d)\n", rlevel*2-2, SP, (x), (y), (z))); \      DPRINTF(("%.*sADD_NEW_DATA(%d,%d,%d) line %d\n", rlevel*2-2, SP, \
385          (x), (y), (z), __LINE__)); \
386      } \      } \
387    else return PCRE_ERROR_DFA_WSSIZE    else return PCRE_ERROR_DFA_WSSIZE
388    
# Line 272  for the current character, one for the f Line 391  for the current character, one for the f
391  static int  static int
392  internal_dfa_exec(  internal_dfa_exec(
393    dfa_match_data *md,    dfa_match_data *md,
394    const uschar *this_start_code,    const pcre_uchar *this_start_code,
395    const uschar *current_subject,    const pcre_uchar *current_subject,
396    int start_offset,    int start_offset,
397    int *offsets,    int *offsets,
398    int offsetcount,    int offsetcount,
399    int *workspace,    int *workspace,
400    int wscount,    int wscount,
401    int ims,    int  rlevel)
   int  rlevel,  
   int  recursing)  
402  {  {
403  stateblock *active_states, *new_states, *temp_states;  stateblock *active_states, *new_states, *temp_states;
404  stateblock *next_active_state, *next_new_state;  stateblock *next_active_state, *next_new_state;
405    
406  const uschar *ctypes, *lcc, *fcc;  const pcre_uint8 *ctypes, *lcc, *fcc;
407  const uschar *ptr;  const pcre_uchar *ptr;
408  const uschar *end_code, *first_op;  const pcre_uchar *end_code, *first_op;
409    
410    dfa_recursion_info new_recursive;
411    
412  int active_count, new_count, match_count;  int active_count, new_count, match_count;
413    
414  /* Some fields in the md block are frequently referenced, so we load them into  /* Some fields in the md block are frequently referenced, so we load them into
415  independent variables in the hope that this will perform better. */  independent variables in the hope that this will perform better. */
416    
417  const uschar *start_subject = md->start_subject;  const pcre_uchar *start_subject = md->start_subject;
418  const uschar *end_subject = md->end_subject;  const pcre_uchar *end_subject = md->end_subject;
419  const uschar *start_code = md->start_code;  const pcre_uchar *start_code = md->start_code;
420    
421  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
422  BOOL utf8 = (md->poptions & PCRE_UTF8) != 0;  BOOL utf = (md->poptions & PCRE_UTF8) != 0;
423  #else  #else
424  BOOL utf8 = FALSE;  BOOL utf = FALSE;
425  #endif  #endif
426    
427    BOOL reset_could_continue = FALSE;
428    
429  rlevel++;  rlevel++;
430  offsetcount &= (-2);  offsetcount &= (-2);
431    
# Line 313  wscount = (wscount - (wscount % (INTS_PE Line 434  wscount = (wscount - (wscount % (INTS_PE
434            (2 * INTS_PER_STATEBLOCK);            (2 * INTS_PER_STATEBLOCK);
435    
436  DPRINTF(("\n%.*s---------------------\n"  DPRINTF(("\n%.*s---------------------\n"
437    "%.*sCall to internal_dfa_exec f=%d r=%d\n",    "%.*sCall to internal_dfa_exec f=%d\n",
438    rlevel*2-2, SP, rlevel*2-2, SP, rlevel, recursing));    rlevel*2-2, SP, rlevel*2-2, SP, rlevel));
439    
440  ctypes = md->tables + ctypes_offset;  ctypes = md->tables + ctypes_offset;
441  lcc = md->tables + lcc_offset;  lcc = md->tables + lcc_offset;
# Line 327  next_new_state = new_states = active_sta Line 448  next_new_state = new_states = active_sta
448  new_count = 0;  new_count = 0;
449    
450  first_op = this_start_code + 1 + LINK_SIZE +  first_op = this_start_code + 1 + LINK_SIZE +
451    ((*this_start_code == OP_CBRA || *this_start_code == OP_SCBRA)? 2:0);    ((*this_start_code == OP_CBRA || *this_start_code == OP_SCBRA ||
452        *this_start_code == OP_CBRAPOS || *this_start_code == OP_SCBRAPOS)
453        ? IMM2_SIZE:0);
454    
455  /* The first thing in any (sub) pattern is a bracket of some sort. Push all  /* The first thing in any (sub) pattern is a bracket of some sort. Push all
456  the alternative states onto the list, and find out where the end is. This  the alternative states onto the list, and find out where the end is. This
# Line 355  if (*first_op == OP_REVERSE) Line 478  if (*first_op == OP_REVERSE)
478    /* If we can't go back the amount required for the longest lookbehind    /* If we can't go back the amount required for the longest lookbehind
479    pattern, go back as far as we can; some alternatives may still be viable. */    pattern, go back as far as we can; some alternatives may still be viable. */
480    
481  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
482    /* In character mode we have to step back character by character */    /* In character mode we have to step back character by character */
483    
484    if (utf8)    if (utf)
485      {      {
486      for (gone_back = 0; gone_back < max_back; gone_back++)      for (gone_back = 0; gone_back < max_back; gone_back++)
487        {        {
488        if (current_subject <= start_subject) break;        if (current_subject <= start_subject) break;
489        current_subject--;        current_subject--;
490        while (current_subject > start_subject &&        ACROSSCHAR(current_subject > start_subject, *current_subject, current_subject--);
              (*current_subject & 0xc0) == 0x80)  
         current_subject--;  
491        }        }
492      }      }
493    else    else
# Line 376  if (*first_op == OP_REVERSE) Line 497  if (*first_op == OP_REVERSE)
497    
498      {      {
499      gone_back = (current_subject - max_back < start_subject)?      gone_back = (current_subject - max_back < start_subject)?
500        current_subject - start_subject : max_back;        (int)(current_subject - start_subject) : max_back;
501      current_subject -= gone_back;      current_subject -= gone_back;
502      }      }
503    
504      /* Save the earliest consulted character */
505    
506      if (current_subject < md->start_used_ptr)
507        md->start_used_ptr = current_subject;
508    
509    /* Now we can process the individual branches. */    /* Now we can process the individual branches. */
510    
511    end_code = this_start_code;    end_code = this_start_code;
# Line 388  if (*first_op == OP_REVERSE) Line 514  if (*first_op == OP_REVERSE)
514      int back = GET(end_code, 2+LINK_SIZE);      int back = GET(end_code, 2+LINK_SIZE);
515      if (back <= gone_back)      if (back <= gone_back)
516        {        {
517        int bstate = end_code - start_code + 2 + 2*LINK_SIZE;        int bstate = (int)(end_code - start_code + 2 + 2*LINK_SIZE);
518        ADD_NEW_DATA(-bstate, 0, gone_back - back);        ADD_NEW_DATA(-bstate, 0, gone_back - back);
519        }        }
520      end_code += GET(end_code, 1);      end_code += GET(end_code, 1);
# Line 421  else Line 547  else
547    else    else
548      {      {
549      int length = 1 + LINK_SIZE +      int length = 1 + LINK_SIZE +
550        ((*this_start_code == OP_CBRA || *this_start_code == OP_SCBRA)? 2:0);        ((*this_start_code == OP_CBRA || *this_start_code == OP_SCBRA ||
551            *this_start_code == OP_CBRAPOS || *this_start_code == OP_SCBRAPOS)
552            ? IMM2_SIZE:0);
553      do      do
554        {        {
555        ADD_NEW(end_code - start_code + length, 0);        ADD_NEW((int)(end_code - start_code + length), 0);
556        end_code += GET(end_code, 1);        end_code += GET(end_code, 1);
557        length = 1 + LINK_SIZE;        length = 1 + LINK_SIZE;
558        }        }
# Line 434  else Line 562  else
562    
563  workspace[0] = 0;    /* Bit indicating which vector is current */  workspace[0] = 0;    /* Bit indicating which vector is current */
564    
565  DPRINTF(("%.*sEnd state = %d\n", rlevel*2-2, SP, end_code - start_code));  DPRINTF(("%.*sEnd state = %d\n", rlevel*2-2, SP, (int)(end_code - start_code)));
566    
567  /* Loop for scanning the subject */  /* Loop for scanning the subject */
568    
# Line 444  for (;;) Line 572  for (;;)
572    int i, j;    int i, j;
573    int clen, dlen;    int clen, dlen;
574    unsigned int c, d;    unsigned int c, d;
575      int forced_fail = 0;
576      BOOL partial_newline = FALSE;
577      BOOL could_continue = reset_could_continue;
578      reset_could_continue = FALSE;
579    
580    /* Make the new state list into the active state list and empty the    /* Make the new state list into the active state list and empty the
581    new state list. */    new state list. */
# Line 457  for (;;) Line 589  for (;;)
589    workspace[0] ^= 1;              /* Remember for the restarting feature */    workspace[0] ^= 1;              /* Remember for the restarting feature */
590    workspace[1] = active_count;    workspace[1] = active_count;
591    
592  #ifdef DEBUG  #ifdef PCRE_DEBUG
593    printf("%.*sNext character: rest of subject = \"", rlevel*2-2, SP);    printf("%.*sNext character: rest of subject = \"", rlevel*2-2, SP);
594    pchars((uschar *)ptr, strlen((char *)ptr), stdout);    pchars(ptr, STRLEN_UC(ptr), stdout);
595    printf("\"\n");    printf("\"\n");
596    
597    printf("%.*sActive states: ", rlevel*2-2, SP);    printf("%.*sActive states: ", rlevel*2-2, SP);
# Line 479  for (;;) Line 611  for (;;)
611    
612    if (ptr < end_subject)    if (ptr < end_subject)
613      {      {
614      clen = 1;        /* Number of bytes in the character */      clen = 1;        /* Number of data items in the character */
615  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
616      if (utf8) { GETCHARLEN(c, ptr, clen); } else      if (utf) { GETCHARLEN(c, ptr, clen); } else
617  #endif  /* SUPPORT_UTF8 */  #endif  /* SUPPORT_UTF */
618      c = *ptr;      c = *ptr;
619      }      }
620    else    else
# Line 499  for (;;) Line 631  for (;;)
631    for (i = 0; i < active_count; i++)    for (i = 0; i < active_count; i++)
632      {      {
633      stateblock *current_state = active_states + i;      stateblock *current_state = active_states + i;
634      const uschar *code;      BOOL caseless = FALSE;
635        const pcre_uchar *code;
636      int state_offset = current_state->offset;      int state_offset = current_state->offset;
637      int count, codevalue;      int count, codevalue, rrc;
 #ifdef SUPPORT_UCP  
     int chartype, script;  
 #endif  
638    
639  #ifdef DEBUG  #ifdef PCRE_DEBUG
640      printf ("%.*sProcessing state %d c=", rlevel*2-2, SP, state_offset);      printf ("%.*sProcessing state %d c=", rlevel*2-2, SP, state_offset);
641      if (clen == 0) printf("EOL\n");      if (clen == 0) printf("EOL\n");
642        else if (c > 32 && c < 127) printf("'%c'\n", c);        else if (c > 32 && c < 127) printf("'%c'\n", c);
643          else printf("0x%02x\n", c);          else printf("0x%02x\n", c);
644  #endif  #endif
645    
     /* This variable is referred to implicity in the ADD_xxx macros. */  
   
     ims = current_state->ims;  
   
646      /* A negative offset is a special case meaning "hold off going to this      /* A negative offset is a special case meaning "hold off going to this
647      (negated) state until the number of characters in the data field have      (negated) state until the number of characters in the data field have
648      been skipped". */      been skipped". If the could_continue flag was passed over from a previous
649        state, arrange for it to passed on. */
650    
651      if (state_offset < 0)      if (state_offset < 0)
652        {        {
# Line 528  for (;;) Line 655  for (;;)
655          DPRINTF(("%.*sSkipping this character\n", rlevel*2-2, SP));          DPRINTF(("%.*sSkipping this character\n", rlevel*2-2, SP));
656          ADD_NEW_DATA(state_offset, current_state->count,          ADD_NEW_DATA(state_offset, current_state->count,
657            current_state->data - 1);            current_state->data - 1);
658            if (could_continue) reset_could_continue = TRUE;
659          continue;          continue;
660          }          }
661        else        else
# Line 536  for (;;) Line 664  for (;;)
664          }          }
665        }        }
666    
667      /* Check for a duplicate state with the same count, and skip if found. */      /* Check for a duplicate state with the same count, and skip if found.
668        See the note at the head of this module about the possibility of improving
669        performance here. */
670    
671      for (j = 0; j < i; j++)      for (j = 0; j < i; j++)
672        {        {
# Line 553  for (;;) Line 683  for (;;)
683      code = start_code + state_offset;      code = start_code + state_offset;
684      codevalue = *code;      codevalue = *code;
685    
686        /* If this opcode inspects a character, but we are at the end of the
687        subject, remember the fact for use when testing for a partial match. */
688    
689        if (clen == 0 && poptable[codevalue] != 0)
690          could_continue = TRUE;
691    
692      /* If this opcode is followed by an inline character, load it. It is      /* If this opcode is followed by an inline character, load it. It is
693      tempting to test for the presence of a subject character here, but that      tempting to test for the presence of a subject character here, but that
694      is wrong, because sometimes zero repetitions of the subject are      is wrong, because sometimes zero repetitions of the subject are
695      permitted.      permitted.
696    
697      We also use this mechanism for opcodes such as OP_TYPEPLUS that take an      We also use this mechanism for opcodes such as OP_TYPEPLUS that take an
698      argument that is not a data character - but is always one byte long.      argument that is not a data character - but is always one byte long because
699      Unfortunately, we have to take special action to deal with  \P, \p, and      the values are small. We have to take special action to deal with  \P, \p,
700      \X in this case. To keep the other cases fast, convert these ones to new      \H, \h, \V, \v and \X in this case. To keep the other cases fast, convert
701      opcodes. */      these ones to new opcodes. */
702    
703      if (coptable[codevalue] > 0)      if (coptable[codevalue] > 0)
704        {        {
705        dlen = 1;        dlen = 1;
706  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
707        if (utf8) { GETCHARLEN(d, (code + coptable[codevalue]), dlen); } else        if (utf) { GETCHARLEN(d, (code + coptable[codevalue]), dlen); } else
708  #endif  /* SUPPORT_UTF8 */  #endif  /* SUPPORT_UTF */
709        d = code[coptable[codevalue]];        d = code[coptable[codevalue]];
710        if (codevalue >= OP_TYPESTAR)        if (codevalue >= OP_TYPESTAR)
711          {          {
# Line 580  for (;;) Line 716  for (;;)
716            case OP_PROP: codevalue += OP_PROP_EXTRA; break;            case OP_PROP: codevalue += OP_PROP_EXTRA; break;
717            case OP_ANYNL: codevalue += OP_ANYNL_EXTRA; break;            case OP_ANYNL: codevalue += OP_ANYNL_EXTRA; break;
718            case OP_EXTUNI: codevalue += OP_EXTUNI_EXTRA; break;            case OP_EXTUNI: codevalue += OP_EXTUNI_EXTRA; break;
719              case OP_NOT_HSPACE:
720              case OP_HSPACE: codevalue += OP_HSPACE_EXTRA; break;
721              case OP_NOT_VSPACE:
722              case OP_VSPACE: codevalue += OP_VSPACE_EXTRA; break;
723            default: break;            default: break;
724            }            }
725          }          }
# Line 595  for (;;) Line 735  for (;;)
735    
736      switch (codevalue)      switch (codevalue)
737        {        {
738    /* ========================================================================== */
739          /* These cases are never obeyed. This is a fudge that causes a compile-
740          time error if the vectors coptable or poptable, which are indexed by
741          opcode, are not the correct length. It seems to be the only way to do
742          such a check at compile time, as the sizeof() operator does not work
743          in the C preprocessor. */
744    
745          case OP_TABLE_LENGTH:
746          case OP_TABLE_LENGTH +
747            ((sizeof(coptable) == OP_TABLE_LENGTH) &&
748             (sizeof(poptable) == OP_TABLE_LENGTH)):
749          break;
750    
751  /* ========================================================================== */  /* ========================================================================== */
752        /* Reached a closing bracket. If not at the end of the pattern, carry        /* Reached a closing bracket. If not at the end of the pattern, carry
753        on with the next opcode. Otherwise, unless we have an empty string and        on with the next opcode. For repeating opcodes, also add the repeat
754        PCRE_NOTEMPTY is set, save the match data, shifting up all previous        state. Note that KETRPOS will always be encountered at the end of the
755          subpattern, because the possessive subpattern repeats are always handled
756          using recursive calls. Thus, it never adds any new states.
757    
758          At the end of the (sub)pattern, unless we have an empty string and
759          PCRE_NOTEMPTY is set, or PCRE_NOTEMPTY_ATSTART is set and we are at the
760          start of the subject, save the match data, shifting up all previous
761        matches so we always have the longest first. */        matches so we always have the longest first. */
762    
763        case OP_KET:        case OP_KET:
764        case OP_KETRMIN:        case OP_KETRMIN:
765        case OP_KETRMAX:        case OP_KETRMAX:
766          case OP_KETRPOS:
767        if (code != end_code)        if (code != end_code)
768          {          {
769          ADD_ACTIVE(state_offset + 1 + LINK_SIZE, 0);          ADD_ACTIVE(state_offset + 1 + LINK_SIZE, 0);
# Line 613  for (;;) Line 772  for (;;)
772            ADD_ACTIVE(state_offset - GET(code, 1), 0);            ADD_ACTIVE(state_offset - GET(code, 1), 0);
773            }            }
774          }          }
775        else if (ptr > current_subject || (md->moptions & PCRE_NOTEMPTY) == 0)        else
776          {          {
777          if (match_count < 0) match_count = (offsetcount >= 2)? 1 : 0;          if (ptr > current_subject ||
778            else if (match_count > 0 && ++match_count * 2 >= offsetcount)              ((md->moptions & PCRE_NOTEMPTY) == 0 &&
779              match_count = 0;                ((md->moptions & PCRE_NOTEMPTY_ATSTART) == 0 ||
780          count = ((match_count == 0)? offsetcount : match_count * 2) - 2;                  current_subject > start_subject + md->start_offset)))
781          if (count > 0) memmove(offsets + 2, offsets, count * sizeof(int));            {
782          if (offsetcount >= 2)            if (match_count < 0) match_count = (offsetcount >= 2)? 1 : 0;
783            {              else if (match_count > 0 && ++match_count * 2 > offsetcount)
784            offsets[0] = current_subject - start_subject;                match_count = 0;
785            offsets[1] = ptr - start_subject;            count = ((match_count == 0)? offsetcount : match_count * 2) - 2;
786            DPRINTF(("%.*sSet matched string = \"%.*s\"\n", rlevel*2-2, SP,            if (count > 0) memmove(offsets + 2, offsets, count * sizeof(int));
787              offsets[1] - offsets[0], current_subject));            if (offsetcount >= 2)
788            }              {
789          if ((md->moptions & PCRE_DFA_SHORTEST) != 0)              offsets[0] = (int)(current_subject - start_subject);
790            {              offsets[1] = (int)(ptr - start_subject);
791            DPRINTF(("%.*sEnd of internal_dfa_exec %d: returning %d\n"              DPRINTF(("%.*sSet matched string = \"%.*s\"\n", rlevel*2-2, SP,
792              "%.*s---------------------\n\n", rlevel*2-2, SP, rlevel,                offsets[1] - offsets[0], (char *)current_subject));
793              match_count, rlevel*2-2, SP));              }
794            return match_count;            if ((md->moptions & PCRE_DFA_SHORTEST) != 0)
795                {
796                DPRINTF(("%.*sEnd of internal_dfa_exec %d: returning %d\n"
797                  "%.*s---------------------\n\n", rlevel*2-2, SP, rlevel,
798                  match_count, rlevel*2-2, SP));
799                return match_count;
800                }
801            }            }
802          }          }
803        break;        break;
# Line 644  for (;;) Line 809  for (;;)
809        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
810        case OP_ALT:        case OP_ALT:
811        do { code += GET(code, 1); } while (*code == OP_ALT);        do { code += GET(code, 1); } while (*code == OP_ALT);
812        ADD_ACTIVE(code - start_code, 0);        ADD_ACTIVE((int)(code - start_code), 0);
813        break;        break;
814    
815        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
# Line 652  for (;;) Line 817  for (;;)
817        case OP_SBRA:        case OP_SBRA:
818        do        do
819          {          {
820          ADD_ACTIVE(code - start_code + 1 + LINK_SIZE, 0);          ADD_ACTIVE((int)(code - start_code + 1 + LINK_SIZE), 0);
821          code += GET(code, 1);          code += GET(code, 1);
822          }          }
823        while (*code == OP_ALT);        while (*code == OP_ALT);
# Line 661  for (;;) Line 826  for (;;)
826        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
827        case OP_CBRA:        case OP_CBRA:
828        case OP_SCBRA:        case OP_SCBRA:
829        ADD_ACTIVE(code - start_code + 3 + LINK_SIZE,  0);        ADD_ACTIVE((int)(code - start_code + 1 + LINK_SIZE + IMM2_SIZE),  0);
830        code += GET(code, 1);        code += GET(code, 1);
831        while (*code == OP_ALT)        while (*code == OP_ALT)
832          {          {
833          ADD_ACTIVE(code - start_code + 1 + LINK_SIZE,  0);          ADD_ACTIVE((int)(code - start_code + 1 + LINK_SIZE),  0);
834          code += GET(code, 1);          code += GET(code, 1);
835          }          }
836        break;        break;
# Line 676  for (;;) Line 841  for (;;)
841        ADD_ACTIVE(state_offset + 1, 0);        ADD_ACTIVE(state_offset + 1, 0);
842        code += 1 + GET(code, 2);        code += 1 + GET(code, 2);
843        while (*code == OP_ALT) code += GET(code, 1);        while (*code == OP_ALT) code += GET(code, 1);
844        ADD_ACTIVE(code - start_code + 1 + LINK_SIZE, 0);        ADD_ACTIVE((int)(code - start_code + 1 + LINK_SIZE), 0);
845          break;
846    
847          /*-----------------------------------------------------------------*/
848          case OP_SKIPZERO:
849          code += 1 + GET(code, 2);
850          while (*code == OP_ALT) code += GET(code, 1);
851          ADD_ACTIVE((int)(code - start_code + 1 + LINK_SIZE), 0);
852        break;        break;
853    
854        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
855        case OP_CIRC:        case OP_CIRC:
856        if ((ptr == start_subject && (md->moptions & PCRE_NOTBOL) == 0) ||        if (ptr == start_subject && (md->moptions & PCRE_NOTBOL) == 0)
           ((ims & PCRE_MULTILINE) != 0 &&  
             ptr != end_subject &&  
             WAS_NEWLINE(ptr)))  
857          { ADD_ACTIVE(state_offset + 1, 0); }          { ADD_ACTIVE(state_offset + 1, 0); }
858        break;        break;
859    
860        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
861        case OP_EOD:        case OP_CIRCM:
862        if (ptr >= end_subject) { ADD_ACTIVE(state_offset + 1, 0); }        if ((ptr == start_subject && (md->moptions & PCRE_NOTBOL) == 0) ||
863              (ptr != end_subject && WAS_NEWLINE(ptr)))
864            { ADD_ACTIVE(state_offset + 1, 0); }
865        break;        break;
866    
867        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
868        case OP_OPT:        case OP_EOD:
869        ims = code[1];        if (ptr >= end_subject)
870        ADD_ACTIVE(state_offset + 2, 0);          {
871            if ((md->moptions & PCRE_PARTIAL_HARD) != 0)
872              could_continue = TRUE;
873            else { ADD_ACTIVE(state_offset + 1, 0); }
874            }
875        break;        break;
876    
877        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
# Line 718  for (;;) Line 893  for (;;)
893    
894        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
895        case OP_ANY:        case OP_ANY:
896        if (clen > 0 && ((ims & PCRE_DOTALL) != 0 || !IS_NEWLINE(ptr)))        if (clen > 0 && !IS_NEWLINE(ptr))
897            {
898            if (ptr + 1 >= md->end_subject &&
899                (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
900                NLBLOCK->nltype == NLTYPE_FIXED &&
901                NLBLOCK->nllen == 2 &&
902                c == NLBLOCK->nl[0])
903              {
904              could_continue = partial_newline = TRUE;
905              }
906            else
907              {
908              ADD_NEW(state_offset + 1, 0);
909              }
910            }
911          break;
912    
913          /*-----------------------------------------------------------------*/
914          case OP_ALLANY:
915          if (clen > 0)
916          { ADD_NEW(state_offset + 1, 0); }          { ADD_NEW(state_offset + 1, 0); }
917        break;        break;
918    
919        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
920        case OP_EODN:        case OP_EODN:
921        if (clen == 0 || (IS_NEWLINE(ptr) && ptr == end_subject - md->nllen))        if (clen == 0 && (md->moptions & PCRE_PARTIAL_HARD) != 0)
922            could_continue = TRUE;
923          else if (clen == 0 || (IS_NEWLINE(ptr) && ptr == end_subject - md->nllen))
924          { ADD_ACTIVE(state_offset + 1, 0); }          { ADD_ACTIVE(state_offset + 1, 0); }
925        break;        break;
926    
# Line 732  for (;;) Line 928  for (;;)
928        case OP_DOLL:        case OP_DOLL:
929        if ((md->moptions & PCRE_NOTEOL) == 0)        if ((md->moptions & PCRE_NOTEOL) == 0)
930          {          {
931          if (clen == 0 ||          if (clen == 0 && (md->moptions & PCRE_PARTIAL_HARD) != 0)
932              (IS_NEWLINE(ptr) &&            could_continue = TRUE;
933                 ((ims & PCRE_MULTILINE) != 0 || ptr == end_subject - md->nllen)          else if (clen == 0 ||
934                ((md->poptions & PCRE_DOLLAR_ENDONLY) == 0 && IS_NEWLINE(ptr) &&
935                   (ptr == end_subject - md->nllen)
936              ))              ))
937            { ADD_ACTIVE(state_offset + 1, 0); }            { ADD_ACTIVE(state_offset + 1, 0); }
938            else if (ptr + 1 >= md->end_subject &&
939                     (md->moptions & (PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT)) != 0 &&
940                     NLBLOCK->nltype == NLTYPE_FIXED &&
941                     NLBLOCK->nllen == 2 &&
942                     c == NLBLOCK->nl[0])
943              {
944              if ((md->moptions & PCRE_PARTIAL_HARD) != 0)
945                {
946                reset_could_continue = TRUE;
947                ADD_NEW_DATA(-(state_offset + 1), 0, 1);
948                }
949              else could_continue = partial_newline = TRUE;
950              }
951            }
952          break;
953    
954          /*-----------------------------------------------------------------*/
955          case OP_DOLLM:
956          if ((md->moptions & PCRE_NOTEOL) == 0)
957            {
958            if (clen == 0 && (md->moptions & PCRE_PARTIAL_HARD) != 0)
959              could_continue = TRUE;
960            else if (clen == 0 ||
961                ((md->poptions & PCRE_DOLLAR_ENDONLY) == 0 && IS_NEWLINE(ptr)))
962              { ADD_ACTIVE(state_offset + 1, 0); }
963            else if (ptr + 1 >= md->end_subject &&
964                     (md->moptions & (PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT)) != 0 &&
965                     NLBLOCK->nltype == NLTYPE_FIXED &&
966                     NLBLOCK->nllen == 2 &&
967                     c == NLBLOCK->nl[0])
968              {
969              if ((md->moptions & PCRE_PARTIAL_HARD) != 0)
970                {
971                reset_could_continue = TRUE;
972                ADD_NEW_DATA(-(state_offset + 1), 0, 1);
973                }
974              else could_continue = partial_newline = TRUE;
975              }
976          }          }
977        else if ((ims & PCRE_MULTILINE) != 0 && IS_NEWLINE(ptr))        else if (IS_NEWLINE(ptr))
978          { ADD_ACTIVE(state_offset + 1, 0); }          { ADD_ACTIVE(state_offset + 1, 0); }
979        break;        break;
980    
# Line 769  for (;;) Line 1005  for (;;)
1005    
1006          if (ptr > start_subject)          if (ptr > start_subject)
1007            {            {
1008            const uschar *temp = ptr - 1;            const pcre_uchar *temp = ptr - 1;
1009  #ifdef SUPPORT_UTF8            if (temp < md->start_used_ptr) md->start_used_ptr = temp;
1010            if (utf8) BACKCHAR(temp);  #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
1011              if (utf) { BACKCHAR(temp); }
1012  #endif  #endif
1013            GETCHARTEST(d, temp);            GETCHARTEST(d, temp);
1014    #ifdef SUPPORT_UCP
1015              if ((md->poptions & PCRE_UCP) != 0)
1016                {
1017                if (d == '_') left_word = TRUE; else
1018                  {
1019                  int cat = UCD_CATEGORY(d);
1020                  left_word = (cat == ucp_L || cat == ucp_N);
1021                  }
1022                }
1023              else
1024    #endif
1025            left_word = d < 256 && (ctypes[d] & ctype_word) != 0;            left_word = d < 256 && (ctypes[d] & ctype_word) != 0;
1026            }            }
1027          else left_word = 0;          else left_word = FALSE;
1028    
1029          if (clen > 0) right_word = c < 256 && (ctypes[c] & ctype_word) != 0;          if (clen > 0)
1030            else right_word = 0;            {
1031    #ifdef SUPPORT_UCP
1032              if ((md->poptions & PCRE_UCP) != 0)
1033                {
1034                if (c == '_') right_word = TRUE; else
1035                  {
1036                  int cat = UCD_CATEGORY(c);
1037                  right_word = (cat == ucp_L || cat == ucp_N);
1038                  }
1039                }
1040              else
1041    #endif
1042              right_word = c < 256 && (ctypes[c] & ctype_word) != 0;
1043              }
1044            else right_word = FALSE;
1045    
1046          if ((left_word == right_word) == (codevalue == OP_NOT_WORD_BOUNDARY))          if ((left_word == right_word) == (codevalue == OP_NOT_WORD_BOUNDARY))
1047            { ADD_ACTIVE(state_offset + 1, 0); }            { ADD_ACTIVE(state_offset + 1, 0); }
# Line 798  for (;;) Line 1060  for (;;)
1060        if (clen > 0)        if (clen > 0)
1061          {          {
1062          BOOL OK;          BOOL OK;
1063          int category = _pcre_ucp_findprop(c, &chartype, &script);          const pcre_uint32 *cp;
1064            const ucd_record * prop = GET_UCD(c);
1065          switch(code[1])          switch(code[1])
1066            {            {
1067            case PT_ANY:            case PT_ANY:
# Line 806  for (;;) Line 1069  for (;;)
1069            break;            break;
1070    
1071            case PT_LAMP:            case PT_LAMP:
1072            OK = chartype == ucp_Lu || chartype == ucp_Ll || chartype == ucp_Lt;            OK = prop->chartype == ucp_Lu || prop->chartype == ucp_Ll ||
1073                   prop->chartype == ucp_Lt;
1074            break;            break;
1075    
1076            case PT_GC:            case PT_GC:
1077            OK = category == code[2];            OK = PRIV(ucp_gentype)[prop->chartype] == code[2];
1078            break;            break;
1079    
1080            case PT_PC:            case PT_PC:
1081            OK = chartype == code[2];            OK = prop->chartype == code[2];
1082            break;            break;
1083    
1084            case PT_SC:            case PT_SC:
1085            OK = script == code[2];            OK = prop->script == code[2];
1086              break;
1087    
1088              /* These are specials for combination cases. */
1089    
1090              case PT_ALNUM:
1091              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
1092                   PRIV(ucp_gentype)[prop->chartype] == ucp_N;
1093              break;
1094    
1095              case PT_SPACE:    /* Perl space */
1096              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
1097                   c == CHAR_HT || c == CHAR_NL || c == CHAR_FF || c == CHAR_CR;
1098              break;
1099    
1100              case PT_PXSPACE:  /* POSIX space */
1101              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
1102                   c == CHAR_HT || c == CHAR_NL || c == CHAR_VT ||
1103                   c == CHAR_FF || c == CHAR_CR;
1104            break;            break;
1105    
1106              case PT_WORD:
1107              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
1108                   PRIV(ucp_gentype)[prop->chartype] == ucp_N ||
1109                   c == CHAR_UNDERSCORE;
1110              break;
1111    
1112              case PT_CLIST:
1113              cp = PRIV(ucd_caseless_sets) + prop->caseset;
1114              for (;;)
1115                {
1116                if (c < *cp) { OK = FALSE; break; }
1117                if (c == *cp++) { OK = TRUE; break; }
1118                }
1119              break;
1120    
1121            /* Should never occur, but keep compilers from grumbling. */            /* Should never occur, but keep compilers from grumbling. */
1122    
1123            default:            default:
# Line 838  for (;;) Line 1135  for (;;)
1135  /* ========================================================================== */  /* ========================================================================== */
1136        /* These opcodes likewise inspect the subject character, but have an        /* These opcodes likewise inspect the subject character, but have an
1137        argument that is not a data character. It is one of these opcodes:        argument that is not a data character. It is one of these opcodes:
1138        OP_ANY, OP_DIGIT, OP_NOT_DIGIT, OP_WHITESPACE, OP_NOT_SPACE, OP_WORDCHAR,        OP_ANY, OP_ALLANY, OP_DIGIT, OP_NOT_DIGIT, OP_WHITESPACE, OP_NOT_SPACE,
1139        OP_NOT_WORDCHAR. The value is loaded into d. */        OP_WORDCHAR, OP_NOT_WORDCHAR. The value is loaded into d. */
1140    
1141        case OP_TYPEPLUS:        case OP_TYPEPLUS:
1142        case OP_TYPEMINPLUS:        case OP_TYPEMINPLUS:
# Line 848  for (;;) Line 1145  for (;;)
1145        if (count > 0) { ADD_ACTIVE(state_offset + 2, 0); }        if (count > 0) { ADD_ACTIVE(state_offset + 2, 0); }
1146        if (clen > 0)        if (clen > 0)
1147          {          {
1148          if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||          if (d == OP_ANY && ptr + 1 >= md->end_subject &&
1149                (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
1150                NLBLOCK->nltype == NLTYPE_FIXED &&
1151                NLBLOCK->nllen == 2 &&
1152                c == NLBLOCK->nl[0])
1153              {
1154              could_continue = partial_newline = TRUE;
1155              }
1156            else if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||
1157              (c < 256 &&              (c < 256 &&
1158                (d != OP_ANY ||                (d != OP_ANY || !IS_NEWLINE(ptr)) &&
                (ims & PCRE_DOTALL) != 0 ||  
                !IS_NEWLINE(ptr)  
               ) &&  
1159                ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))                ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))
1160            {            {
1161            if (count > 0 && codevalue == OP_TYPEPOSPLUS)            if (count > 0 && codevalue == OP_TYPEPOSPLUS)
# Line 874  for (;;) Line 1176  for (;;)
1176        ADD_ACTIVE(state_offset + 2, 0);        ADD_ACTIVE(state_offset + 2, 0);
1177        if (clen > 0)        if (clen > 0)
1178          {          {
1179          if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||          if (d == OP_ANY && ptr + 1 >= md->end_subject &&
1180                (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
1181                NLBLOCK->nltype == NLTYPE_FIXED &&
1182                NLBLOCK->nllen == 2 &&
1183                c == NLBLOCK->nl[0])
1184              {
1185              could_continue = partial_newline = TRUE;
1186              }
1187            else if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||
1188              (c < 256 &&              (c < 256 &&
1189                (d != OP_ANY ||                (d != OP_ANY || !IS_NEWLINE(ptr)) &&
                (ims & PCRE_DOTALL) != 0 ||  
                !IS_NEWLINE(ptr)  
               ) &&  
1190                ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))                ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))
1191            {            {
1192            if (codevalue == OP_TYPEPOSQUERY)            if (codevalue == OP_TYPEPOSQUERY)
# Line 899  for (;;) Line 1206  for (;;)
1206        ADD_ACTIVE(state_offset + 2, 0);        ADD_ACTIVE(state_offset + 2, 0);
1207        if (clen > 0)        if (clen > 0)
1208          {          {
1209          if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||          if (d == OP_ANY && ptr + 1 >= md->end_subject &&
1210                (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
1211                NLBLOCK->nltype == NLTYPE_FIXED &&
1212                NLBLOCK->nllen == 2 &&
1213                c == NLBLOCK->nl[0])
1214              {
1215              could_continue = partial_newline = TRUE;
1216              }
1217            else if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||
1218              (c < 256 &&              (c < 256 &&
1219                (d != OP_ANY ||                (d != OP_ANY || !IS_NEWLINE(ptr)) &&
                (ims & PCRE_DOTALL) != 0 ||  
                !IS_NEWLINE(ptr)  
               ) &&  
1220                ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))                ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))
1221            {            {
1222            if (codevalue == OP_TYPEPOSSTAR)            if (codevalue == OP_TYPEPOSSTAR)
# Line 922  for (;;) Line 1234  for (;;)
1234        count = current_state->count;  /* Number already matched */        count = current_state->count;  /* Number already matched */
1235        if (clen > 0)        if (clen > 0)
1236          {          {
1237          if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||          if (d == OP_ANY && ptr + 1 >= md->end_subject &&
1238                (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
1239                NLBLOCK->nltype == NLTYPE_FIXED &&
1240                NLBLOCK->nllen == 2 &&
1241                c == NLBLOCK->nl[0])
1242              {
1243              could_continue = partial_newline = TRUE;
1244              }
1245            else if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||
1246              (c < 256 &&              (c < 256 &&
1247                (d != OP_ANY ||                (d != OP_ANY || !IS_NEWLINE(ptr)) &&
                (ims & PCRE_DOTALL) != 0 ||  
                !IS_NEWLINE(ptr)  
               ) &&  
1248                ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))                ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))
1249            {            {
1250            if (++count >= GET2(code, 1))            if (++count >= GET2(code, 1))
1251              { ADD_NEW(state_offset + 4, 0); }              { ADD_NEW(state_offset + 1 + IMM2_SIZE + 1, 0); }
1252            else            else
1253              { ADD_NEW(state_offset, count); }              { ADD_NEW(state_offset, count); }
1254            }            }
# Line 942  for (;;) Line 1259  for (;;)
1259        case OP_TYPEUPTO:        case OP_TYPEUPTO:
1260        case OP_TYPEMINUPTO:        case OP_TYPEMINUPTO:
1261        case OP_TYPEPOSUPTO:        case OP_TYPEPOSUPTO:
1262        ADD_ACTIVE(state_offset + 4, 0);        ADD_ACTIVE(state_offset + 2 + IMM2_SIZE, 0);
1263        count = current_state->count;  /* Number already matched */        count = current_state->count;  /* Number already matched */
1264        if (clen > 0)        if (clen > 0)
1265          {          {
1266          if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||          if (d == OP_ANY && ptr + 1 >= md->end_subject &&
1267                (md->moptions & (PCRE_PARTIAL_HARD)) != 0 &&
1268                NLBLOCK->nltype == NLTYPE_FIXED &&
1269                NLBLOCK->nllen == 2 &&
1270                c == NLBLOCK->nl[0])
1271              {
1272              could_continue = partial_newline = TRUE;
1273              }
1274            else if ((c >= 256 && d != OP_DIGIT && d != OP_WHITESPACE && d != OP_WORDCHAR) ||
1275              (c < 256 &&              (c < 256 &&
1276                (d != OP_ANY ||                (d != OP_ANY || !IS_NEWLINE(ptr)) &&
                (ims & PCRE_DOTALL) != 0 ||  
                !IS_NEWLINE(ptr)  
               ) &&  
1277                ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))                ((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))
1278            {            {
1279            if (codevalue == OP_TYPEPOSUPTO)            if (codevalue == OP_TYPEPOSUPTO)
# Line 960  for (;;) Line 1282  for (;;)
1282              next_active_state--;              next_active_state--;
1283              }              }
1284            if (++count >= GET2(code, 1))            if (++count >= GET2(code, 1))
1285              { ADD_NEW(state_offset + 4, 0); }              { ADD_NEW(state_offset + 2 + IMM2_SIZE, 0); }
1286            else            else
1287              { ADD_NEW(state_offset, count); }              { ADD_NEW(state_offset, count); }
1288            }            }
# Line 982  for (;;) Line 1304  for (;;)
1304        if (clen > 0)        if (clen > 0)
1305          {          {
1306          BOOL OK;          BOOL OK;
1307          int category = _pcre_ucp_findprop(c, &chartype, &script);          const pcre_uint32 *cp;
1308            const ucd_record * prop = GET_UCD(c);
1309          switch(code[2])          switch(code[2])
1310            {            {
1311            case PT_ANY:            case PT_ANY:
# Line 990  for (;;) Line 1313  for (;;)
1313            break;            break;
1314    
1315            case PT_LAMP:            case PT_LAMP:
1316            OK = chartype == ucp_Lu || chartype == ucp_Ll || chartype == ucp_Lt;            OK = prop->chartype == ucp_Lu || prop->chartype == ucp_Ll ||
1317                prop->chartype == ucp_Lt;
1318            break;            break;
1319    
1320            case PT_GC:            case PT_GC:
1321            OK = category == code[3];            OK = PRIV(ucp_gentype)[prop->chartype] == code[3];
1322            break;            break;
1323    
1324            case PT_PC:            case PT_PC:
1325            OK = chartype == code[3];            OK = prop->chartype == code[3];
1326            break;            break;
1327    
1328            case PT_SC:            case PT_SC:
1329            OK = script == code[3];            OK = prop->script == code[3];
1330              break;
1331    
1332              /* These are specials for combination cases. */
1333    
1334              case PT_ALNUM:
1335              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
1336                   PRIV(ucp_gentype)[prop->chartype] == ucp_N;
1337              break;
1338    
1339              case PT_SPACE:    /* Perl space */
1340              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
1341                   c == CHAR_HT || c == CHAR_NL || c == CHAR_FF || c == CHAR_CR;
1342              break;
1343    
1344              case PT_PXSPACE:  /* POSIX space */
1345              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
1346                   c == CHAR_HT || c == CHAR_NL || c == CHAR_VT ||
1347                   c == CHAR_FF || c == CHAR_CR;
1348              break;
1349    
1350              case PT_WORD:
1351              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
1352                   PRIV(ucp_gentype)[prop->chartype] == ucp_N ||
1353                   c == CHAR_UNDERSCORE;
1354            break;            break;
1355    
1356              case PT_CLIST:
1357              cp = PRIV(ucd_caseless_sets) + prop->caseset;
1358              for (;;)
1359                {
1360                if (c < *cp) { OK = FALSE; break; }
1361                if (c == *cp++) { OK = TRUE; break; }
1362                }
1363              break;
1364    
1365            /* Should never occur, but keep compilers from grumbling. */            /* Should never occur, but keep compilers from grumbling. */
1366    
1367            default:            default:
# Line 1031  for (;;) Line 1388  for (;;)
1388        case OP_EXTUNI_EXTRA + OP_TYPEPOSPLUS:        case OP_EXTUNI_EXTRA + OP_TYPEPOSPLUS:
1389        count = current_state->count;  /* Already matched */        count = current_state->count;  /* Already matched */
1390        if (count > 0) { ADD_ACTIVE(state_offset + 2, 0); }        if (count > 0) { ADD_ACTIVE(state_offset + 2, 0); }
1391        if (clen > 0 && _pcre_ucp_findprop(c, &chartype, &script) != ucp_M)        if (clen > 0)
1392          {          {
1393          const uschar *nptr = ptr + clen;          int lgb, rgb;
1394            const pcre_uchar *nptr = ptr + clen;
1395          int ncount = 0;          int ncount = 0;
1396          if (count > 0 && codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSPLUS)          if (count > 0 && codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSPLUS)
1397            {            {
1398            active_count--;           /* Remove non-match possibility */            active_count--;           /* Remove non-match possibility */
1399            next_active_state--;            next_active_state--;
1400            }            }
1401            lgb = UCD_GRAPHBREAK(c);
1402          while (nptr < end_subject)          while (nptr < end_subject)
1403            {            {
1404            int nd;            dlen = 1;
1405            int ndlen = 1;            if (!utf) d = *nptr; else { GETCHARLEN(d, nptr, dlen); }
1406            GETCHARLEN(nd, nptr, ndlen);            rgb = UCD_GRAPHBREAK(d);
1407            if (_pcre_ucp_findprop(nd, &chartype, &script) != ucp_M) break;            if ((PRIV(ucp_gbtable)[lgb] & (1 << rgb)) == 0) break;
1408            ncount++;            ncount++;
1409            nptr += ndlen;            lgb = rgb;
1410              nptr += dlen;
1411            }            }
1412          count++;          count++;
1413          ADD_NEW_DATA(-state_offset, count, ncount);          ADD_NEW_DATA(-state_offset, count, ncount);
# Line 1066  for (;;) Line 1426  for (;;)
1426          int ncount = 0;          int ncount = 0;
1427          switch (c)          switch (c)
1428            {            {
1429            case 0x000d:            case CHAR_VT:
1430            if (ptr + 1 < end_subject && ptr[1] == 0x0a) ncount = 1;            case CHAR_FF:
1431            /* Fall through */            case CHAR_NEL:
1432            case 0x000a:  #ifndef EBCDIC
           case 0x000b:  
           case 0x000c:  
           case 0x0085:  
1433            case 0x2028:            case 0x2028:
1434            case 0x2029:            case 0x2029:
1435    #endif  /* Not EBCDIC */
1436              if ((md->moptions & PCRE_BSR_ANYCRLF) != 0) break;
1437              goto ANYNL01;
1438    
1439              case CHAR_CR:
1440              if (ptr + 1 < end_subject && ptr[1] == CHAR_LF) ncount = 1;
1441              /* Fall through */
1442    
1443              ANYNL01:
1444              case CHAR_LF:
1445            if (count > 0 && codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSPLUS)            if (count > 0 && codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSPLUS)
1446              {              {
1447              active_count--;           /* Remove non-match possibility */              active_count--;           /* Remove non-match possibility */
# Line 1083  for (;;) Line 1450  for (;;)
1450            count++;            count++;
1451            ADD_NEW_DATA(-state_offset, count, ncount);            ADD_NEW_DATA(-state_offset, count, ncount);
1452            break;            break;
1453    
1454              default:
1455              break;
1456              }
1457            }
1458          break;
1459    
1460          /*-----------------------------------------------------------------*/
1461          case OP_VSPACE_EXTRA + OP_TYPEPLUS:
1462          case OP_VSPACE_EXTRA + OP_TYPEMINPLUS:
1463          case OP_VSPACE_EXTRA + OP_TYPEPOSPLUS:
1464          count = current_state->count;  /* Already matched */
1465          if (count > 0) { ADD_ACTIVE(state_offset + 2, 0); }
1466          if (clen > 0)
1467            {
1468            BOOL OK;
1469            switch (c)
1470              {
1471              VSPACE_CASES:
1472              OK = TRUE;
1473              break;
1474    
1475              default:
1476              OK = FALSE;
1477              break;
1478              }
1479    
1480            if (OK == (d == OP_VSPACE))
1481              {
1482              if (count > 0 && codevalue == OP_VSPACE_EXTRA + OP_TYPEPOSPLUS)
1483                {
1484                active_count--;           /* Remove non-match possibility */
1485                next_active_state--;
1486                }
1487              count++;
1488              ADD_NEW_DATA(-state_offset, count, 0);
1489              }
1490            }
1491          break;
1492    
1493          /*-----------------------------------------------------------------*/
1494          case OP_HSPACE_EXTRA + OP_TYPEPLUS:
1495          case OP_HSPACE_EXTRA + OP_TYPEMINPLUS:
1496          case OP_HSPACE_EXTRA + OP_TYPEPOSPLUS:
1497          count = current_state->count;  /* Already matched */
1498          if (count > 0) { ADD_ACTIVE(state_offset + 2, 0); }
1499          if (clen > 0)
1500            {
1501            BOOL OK;
1502            switch (c)
1503              {
1504              HSPACE_CASES:
1505              OK = TRUE;
1506              break;
1507    
1508            default:            default:
1509              OK = FALSE;
1510            break;            break;
1511            }            }
1512    
1513            if (OK == (d == OP_HSPACE))
1514              {
1515              if (count > 0 && codevalue == OP_HSPACE_EXTRA + OP_TYPEPOSPLUS)
1516                {
1517                active_count--;           /* Remove non-match possibility */
1518                next_active_state--;
1519                }
1520              count++;
1521              ADD_NEW_DATA(-state_offset, count, 0);
1522              }
1523          }          }
1524        break;        break;
1525    
# Line 1108  for (;;) Line 1542  for (;;)
1542        if (clen > 0)        if (clen > 0)
1543          {          {
1544          BOOL OK;          BOOL OK;
1545          int category = _pcre_ucp_findprop(c, &chartype, &script);          const pcre_uint32 *cp;
1546            const ucd_record * prop = GET_UCD(c);
1547          switch(code[2])          switch(code[2])
1548            {            {
1549            case PT_ANY:            case PT_ANY:
# Line 1116  for (;;) Line 1551  for (;;)
1551            break;            break;
1552    
1553            case PT_LAMP:            case PT_LAMP:
1554            OK = chartype == ucp_Lu || chartype == ucp_Ll || chartype == ucp_Lt;            OK = prop->chartype == ucp_Lu || prop->chartype == ucp_Ll ||
1555                prop->chartype == ucp_Lt;
1556            break;            break;
1557    
1558            case PT_GC:            case PT_GC:
1559            OK = category == code[3];            OK = PRIV(ucp_gentype)[prop->chartype] == code[3];
1560            break;            break;
1561    
1562            case PT_PC:            case PT_PC:
1563            OK = chartype == code[3];            OK = prop->chartype == code[3];
1564            break;            break;
1565    
1566            case PT_SC:            case PT_SC:
1567            OK = script == code[3];            OK = prop->script == code[3];
1568              break;
1569    
1570              /* These are specials for combination cases. */
1571    
1572              case PT_ALNUM:
1573              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
1574                   PRIV(ucp_gentype)[prop->chartype] == ucp_N;
1575              break;
1576    
1577              case PT_SPACE:    /* Perl space */
1578              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
1579                   c == CHAR_HT || c == CHAR_NL || c == CHAR_FF || c == CHAR_CR;
1580              break;
1581    
1582              case PT_PXSPACE:  /* POSIX space */
1583              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
1584                   c == CHAR_HT || c == CHAR_NL || c == CHAR_VT ||
1585                   c == CHAR_FF || c == CHAR_CR;
1586            break;            break;
1587    
1588              case PT_WORD:
1589              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
1590                   PRIV(ucp_gentype)[prop->chartype] == ucp_N ||
1591                   c == CHAR_UNDERSCORE;
1592              break;
1593    
1594              case PT_CLIST:
1595              cp = PRIV(ucd_caseless_sets) + prop->caseset;
1596              for (;;)
1597                {
1598                if (c < *cp) { OK = FALSE; break; }
1599                if (c == *cp++) { OK = TRUE; break; }
1600                }
1601              break;
1602    
1603            /* Should never occur, but keep compilers from grumbling. */            /* Should never occur, but keep compilers from grumbling. */
1604    
1605            default:            default:
# Line 1166  for (;;) Line 1635  for (;;)
1635        QS2:        QS2:
1636    
1637        ADD_ACTIVE(state_offset + 2, 0);        ADD_ACTIVE(state_offset + 2, 0);
1638        if (clen > 0 && _pcre_ucp_findprop(c, &chartype, &script) != ucp_M)        if (clen > 0)
1639          {          {
1640          const uschar *nptr = ptr + clen;          int lgb, rgb;
1641            const pcre_uchar *nptr = ptr + clen;
1642          int ncount = 0;          int ncount = 0;
1643          if (codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSSTAR ||          if (codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSSTAR ||
1644              codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSQUERY)              codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSQUERY)
# Line 1176  for (;;) Line 1646  for (;;)
1646            active_count--;           /* Remove non-match possibility */            active_count--;           /* Remove non-match possibility */
1647            next_active_state--;            next_active_state--;
1648            }            }
1649            lgb = UCD_GRAPHBREAK(c);
1650          while (nptr < end_subject)          while (nptr < end_subject)
1651            {            {
1652            int nd;            dlen = 1;
1653            int ndlen = 1;            if (!utf) d = *nptr; else { GETCHARLEN(d, nptr, dlen); }
1654            GETCHARLEN(nd, nptr, ndlen);            rgb = UCD_GRAPHBREAK(d);
1655            if (_pcre_ucp_findprop(nd, &chartype, &script) != ucp_M) break;            if ((PRIV(ucp_gbtable)[lgb] & (1 << rgb)) == 0) break;
1656            ncount++;            ncount++;
1657            nptr += ndlen;            lgb = rgb;
1658              nptr += dlen;
1659            }            }
1660          ADD_NEW_DATA(-(state_offset + count), 0, ncount);          ADD_NEW_DATA(-(state_offset + count), 0, ncount);
1661          }          }
# Line 1209  for (;;) Line 1681  for (;;)
1681          int ncount = 0;          int ncount = 0;
1682          switch (c)          switch (c)
1683            {            {
1684            case 0x000d:            case CHAR_VT:
1685            if (ptr + 1 < end_subject && ptr[1] == 0x0a) ncount = 1;            case CHAR_FF:
1686            /* Fall through */            case CHAR_NEL:
1687            case 0x000a:  #ifndef EBCDIC
           case 0x000b:  
           case 0x000c:  
           case 0x0085:  
1688            case 0x2028:            case 0x2028:
1689            case 0x2029:            case 0x2029:
1690    #endif  /* Not EBCDIC */
1691              if ((md->moptions & PCRE_BSR_ANYCRLF) != 0) break;
1692              goto ANYNL02;
1693    
1694              case CHAR_CR:
1695              if (ptr + 1 < end_subject && ptr[1] == CHAR_LF) ncount = 1;
1696              /* Fall through */
1697    
1698              ANYNL02:
1699              case CHAR_LF:
1700            if (codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSSTAR ||            if (codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSSTAR ||
1701                codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSQUERY)                codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSQUERY)
1702              {              {
# Line 1226  for (;;) Line 1705  for (;;)
1705              }              }
1706            ADD_NEW_DATA(-(state_offset + count), 0, ncount);            ADD_NEW_DATA(-(state_offset + count), 0, ncount);
1707            break;            break;
1708    
1709            default:            default:
1710            break;            break;
1711            }            }
# Line 1233  for (;;) Line 1713  for (;;)
1713        break;        break;
1714    
1715        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
1716  #ifdef SUPPORT_UCP        case OP_VSPACE_EXTRA + OP_TYPEQUERY:
1717        case OP_PROP_EXTRA + OP_TYPEEXACT:        case OP_VSPACE_EXTRA + OP_TYPEMINQUERY:
1718        case OP_PROP_EXTRA + OP_TYPEUPTO:        case OP_VSPACE_EXTRA + OP_TYPEPOSQUERY:
1719        case OP_PROP_EXTRA + OP_TYPEMINUPTO:        count = 2;
1720        case OP_PROP_EXTRA + OP_TYPEPOSUPTO:        goto QS4;
1721        if (codevalue != OP_PROP_EXTRA + OP_TYPEEXACT)  
1722          { ADD_ACTIVE(state_offset + 6, 0); }        case OP_VSPACE_EXTRA + OP_TYPESTAR:
1723        count = current_state->count;  /* Number already matched */        case OP_VSPACE_EXTRA + OP_TYPEMINSTAR:
1724          case OP_VSPACE_EXTRA + OP_TYPEPOSSTAR:
1725          count = 0;
1726    
1727          QS4:
1728          ADD_ACTIVE(state_offset + 2, 0);
1729        if (clen > 0)        if (clen > 0)
1730          {          {
1731          BOOL OK;          BOOL OK;
1732          int category = _pcre_ucp_findprop(c, &chartype, &script);          switch (c)
         switch(code[4])  
1733            {            {
1734            case PT_ANY:            VSPACE_CASES:
1735            OK = TRUE;            OK = TRUE;
1736            break;            break;
1737    
1738            case PT_LAMP:            default:
1739            OK = chartype == ucp_Lu || chartype == ucp_Ll || chartype == ucp_Lt;            OK = FALSE;
1740            break;            break;
1741              }
1742            if (OK == (d == OP_VSPACE))
1743              {
1744              if (codevalue == OP_VSPACE_EXTRA + OP_TYPEPOSSTAR ||
1745                  codevalue == OP_VSPACE_EXTRA + OP_TYPEPOSQUERY)
1746                {
1747                active_count--;           /* Remove non-match possibility */
1748                next_active_state--;
1749                }
1750              ADD_NEW_DATA(-(state_offset + count), 0, 0);
1751              }
1752            }
1753          break;
1754    
1755            case PT_GC:        /*-----------------------------------------------------------------*/
1756            OK = category == code[5];        case OP_HSPACE_EXTRA + OP_TYPEQUERY:
1757            break;        case OP_HSPACE_EXTRA + OP_TYPEMINQUERY:
1758          case OP_HSPACE_EXTRA + OP_TYPEPOSQUERY:
1759          count = 2;
1760          goto QS5;
1761    
1762            case PT_PC:        case OP_HSPACE_EXTRA + OP_TYPESTAR:
1763            OK = chartype == code[5];        case OP_HSPACE_EXTRA + OP_TYPEMINSTAR:
1764            break;        case OP_HSPACE_EXTRA + OP_TYPEPOSSTAR:
1765          count = 0;
1766    
1767            case PT_SC:        QS5:
1768            OK = script == code[5];        ADD_ACTIVE(state_offset + 2, 0);
1769          if (clen > 0)
1770            {
1771            BOOL OK;
1772            switch (c)
1773              {
1774              HSPACE_CASES:
1775              OK = TRUE;
1776            break;            break;
1777    
           /* Should never occur, but keep compilers from grumbling. */  
   
1778            default:            default:
1779            OK = codevalue != OP_PROP;            OK = FALSE;
1780            break;            break;
1781            }            }
1782    
1783          if (OK == (d == OP_PROP))          if (OK == (d == OP_HSPACE))
1784            {            {
1785            if (codevalue == OP_PROP_EXTRA + OP_TYPEPOSUPTO)            if (codevalue == OP_HSPACE_EXTRA + OP_TYPEPOSSTAR ||
1786                  codevalue == OP_HSPACE_EXTRA + OP_TYPEPOSQUERY)
1787              {              {
1788              active_count--;           /* Remove non-match possibility */              active_count--;           /* Remove non-match possibility */
1789              next_active_state--;              next_active_state--;
1790              }              }
1791            if (++count >= GET2(code, 1))            ADD_NEW_DATA(-(state_offset + count), 0, 0);
1792              { ADD_NEW(state_offset + 6, 0); }            }
1793            }
1794          break;
1795    
1796          /*-----------------------------------------------------------------*/
1797    #ifdef SUPPORT_UCP
1798          case OP_PROP_EXTRA + OP_TYPEEXACT:
1799          case OP_PROP_EXTRA + OP_TYPEUPTO:
1800          case OP_PROP_EXTRA + OP_TYPEMINUPTO:
1801          case OP_PROP_EXTRA + OP_TYPEPOSUPTO:
1802          if (codevalue != OP_PROP_EXTRA + OP_TYPEEXACT)
1803            { ADD_ACTIVE(state_offset + 1 + IMM2_SIZE + 3, 0); }
1804          count = current_state->count;  /* Number already matched */
1805          if (clen > 0)
1806            {
1807            BOOL OK;
1808            const pcre_uint32 *cp;
1809            const ucd_record * prop = GET_UCD(c);
1810            switch(code[1 + IMM2_SIZE + 1])
1811              {
1812              case PT_ANY:
1813              OK = TRUE;
1814              break;
1815    
1816              case PT_LAMP:
1817              OK = prop->chartype == ucp_Lu || prop->chartype == ucp_Ll ||
1818                prop->chartype == ucp_Lt;
1819              break;
1820    
1821              case PT_GC:
1822              OK = PRIV(ucp_gentype)[prop->chartype] == code[1 + IMM2_SIZE + 2];
1823              break;
1824    
1825              case PT_PC:
1826              OK = prop->chartype == code[1 + IMM2_SIZE + 2];
1827              break;
1828    
1829              case PT_SC:
1830              OK = prop->script == code[1 + IMM2_SIZE + 2];
1831              break;
1832    
1833              /* These are specials for combination cases. */
1834    
1835              case PT_ALNUM:
1836              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
1837                   PRIV(ucp_gentype)[prop->chartype] == ucp_N;
1838              break;
1839    
1840              case PT_SPACE:    /* Perl space */
1841              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
1842                   c == CHAR_HT || c == CHAR_NL || c == CHAR_FF || c == CHAR_CR;
1843              break;
1844    
1845              case PT_PXSPACE:  /* POSIX space */
1846              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_Z ||
1847                   c == CHAR_HT || c == CHAR_NL || c == CHAR_VT ||
1848                   c == CHAR_FF || c == CHAR_CR;
1849              break;
1850    
1851              case PT_WORD:
1852              OK = PRIV(ucp_gentype)[prop->chartype] == ucp_L ||
1853                   PRIV(ucp_gentype)[prop->chartype] == ucp_N ||
1854                   c == CHAR_UNDERSCORE;
1855              break;
1856    
1857              case PT_CLIST:
1858              cp = PRIV(ucd_caseless_sets) + prop->caseset;
1859              for (;;)
1860                {
1861                if (c < *cp) { OK = FALSE; break; }
1862                if (c == *cp++) { OK = TRUE; break; }
1863                }
1864              break;
1865    
1866              /* Should never occur, but keep compilers from grumbling. */
1867    
1868              default:
1869              OK = codevalue != OP_PROP;
1870              break;
1871              }
1872    
1873            if (OK == (d == OP_PROP))
1874              {
1875              if (codevalue == OP_PROP_EXTRA + OP_TYPEPOSUPTO)
1876                {
1877                active_count--;           /* Remove non-match possibility */
1878                next_active_state--;
1879                }
1880              if (++count >= GET2(code, 1))
1881                { ADD_NEW(state_offset + 1 + IMM2_SIZE + 3, 0); }
1882            else            else
1883              { ADD_NEW(state_offset, count); }              { ADD_NEW(state_offset, count); }
1884            }            }
# Line 1295  for (;;) Line 1891  for (;;)
1891        case OP_EXTUNI_EXTRA + OP_TYPEMINUPTO:        case OP_EXTUNI_EXTRA + OP_TYPEMINUPTO:
1892        case OP_EXTUNI_EXTRA + OP_TYPEPOSUPTO:        case OP_EXTUNI_EXTRA + OP_TYPEPOSUPTO:
1893        if (codevalue != OP_EXTUNI_EXTRA + OP_TYPEEXACT)        if (codevalue != OP_EXTUNI_EXTRA + OP_TYPEEXACT)
1894          { ADD_ACTIVE(state_offset + 4, 0); }          { ADD_ACTIVE(state_offset + 2 + IMM2_SIZE, 0); }
1895        count = current_state->count;  /* Number already matched */        count = current_state->count;  /* Number already matched */
1896        if (clen > 0 && _pcre_ucp_findprop(c, &chartype, &script) != ucp_M)        if (clen > 0)
1897          {          {
1898          const uschar *nptr = ptr + clen;          int lgb, rgb;
1899            const pcre_uchar *nptr = ptr + clen;
1900          int ncount = 0;          int ncount = 0;
1901          if (codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSUPTO)          if (codevalue == OP_EXTUNI_EXTRA + OP_TYPEPOSUPTO)
1902            {            {
1903            active_count--;           /* Remove non-match possibility */            active_count--;           /* Remove non-match possibility */
1904            next_active_state--;            next_active_state--;
1905            }            }
1906            lgb = UCD_GRAPHBREAK(c);
1907          while (nptr < end_subject)          while (nptr < end_subject)
1908            {            {
1909            int nd;            dlen = 1;
1910            int ndlen = 1;            if (!utf) d = *nptr; else { GETCHARLEN(d, nptr, dlen); }
1911            GETCHARLEN(nd, nptr, ndlen);            rgb = UCD_GRAPHBREAK(d);
1912            if (_pcre_ucp_findprop(nd, &chartype, &script) != ucp_M) break;            if ((PRIV(ucp_gbtable)[lgb] & (1 << rgb)) == 0) break;
1913            ncount++;            ncount++;
1914            nptr += ndlen;            lgb = rgb;
1915              nptr += dlen;
1916            }            }
1917            if (nptr >= end_subject && (md->moptions & PCRE_PARTIAL_HARD) != 0)
1918                reset_could_continue = TRUE;
1919          if (++count >= GET2(code, 1))          if (++count >= GET2(code, 1))
1920            { ADD_NEW_DATA(-(state_offset + 4), 0, ncount); }            { ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, ncount); }
1921          else          else
1922            { ADD_NEW_DATA(-state_offset, count, ncount); }            { ADD_NEW_DATA(-state_offset, count, ncount); }
1923          }          }
# Line 1329  for (;;) Line 1930  for (;;)
1930        case OP_ANYNL_EXTRA + OP_TYPEMINUPTO:        case OP_ANYNL_EXTRA + OP_TYPEMINUPTO:
1931        case OP_ANYNL_EXTRA + OP_TYPEPOSUPTO:        case OP_ANYNL_EXTRA + OP_TYPEPOSUPTO:
1932        if (codevalue != OP_ANYNL_EXTRA + OP_TYPEEXACT)        if (codevalue != OP_ANYNL_EXTRA + OP_TYPEEXACT)
1933          { ADD_ACTIVE(state_offset + 4, 0); }          { ADD_ACTIVE(state_offset + 2 + IMM2_SIZE, 0); }
1934        count = current_state->count;  /* Number already matched */        count = current_state->count;  /* Number already matched */
1935        if (clen > 0)        if (clen > 0)
1936          {          {
1937          int ncount = 0;          int ncount = 0;
1938          switch (c)          switch (c)
1939            {            {
1940            case 0x000d:            case CHAR_VT:
1941            if (ptr + 1 < end_subject && ptr[1] == 0x0a) ncount = 1;            case CHAR_FF:
1942            /* Fall through */            case CHAR_NEL:
1943            case 0x000a:  #ifndef EBCDIC
           case 0x000b:  
           case 0x000c:  
           case 0x0085:  
1944            case 0x2028:            case 0x2028:
1945            case 0x2029:            case 0x2029:
1946    #endif  /* Not EBCDIC */
1947              if ((md->moptions & PCRE_BSR_ANYCRLF) != 0) break;
1948              goto ANYNL03;
1949    
1950              case CHAR_CR:
1951              if (ptr + 1 < end_subject && ptr[1] == CHAR_LF) ncount = 1;
1952              /* Fall through */
1953    
1954              ANYNL03:
1955              case CHAR_LF:
1956            if (codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSUPTO)            if (codevalue == OP_ANYNL_EXTRA + OP_TYPEPOSUPTO)
1957              {              {
1958              active_count--;           /* Remove non-match possibility */              active_count--;           /* Remove non-match possibility */
1959              next_active_state--;              next_active_state--;
1960              }              }
1961            if (++count >= GET2(code, 1))            if (++count >= GET2(code, 1))
1962              { ADD_NEW_DATA(-(state_offset + 4), 0, ncount); }              { ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, ncount); }
1963            else            else
1964              { ADD_NEW_DATA(-state_offset, count, ncount); }              { ADD_NEW_DATA(-state_offset, count, ncount); }
1965            break;            break;
1966    
1967              default:
1968              break;
1969              }
1970            }
1971          break;
1972    
1973          /*-----------------------------------------------------------------*/
1974          case OP_VSPACE_EXTRA + OP_TYPEEXACT:
1975          case OP_VSPACE_EXTRA + OP_TYPEUPTO:
1976          case OP_VSPACE_EXTRA + OP_TYPEMINUPTO:
1977          case OP_VSPACE_EXTRA + OP_TYPEPOSUPTO:
1978          if (codevalue != OP_VSPACE_EXTRA + OP_TYPEEXACT)
1979            { ADD_ACTIVE(state_offset + 2 + IMM2_SIZE, 0); }
1980          count = current_state->count;  /* Number already matched */
1981          if (clen > 0)
1982            {
1983            BOOL OK;
1984            switch (c)
1985              {
1986              VSPACE_CASES:
1987              OK = TRUE;
1988              break;
1989    
1990              default:
1991              OK = FALSE;
1992              }
1993    
1994            if (OK == (d == OP_VSPACE))
1995              {
1996              if (codevalue == OP_VSPACE_EXTRA + OP_TYPEPOSUPTO)
1997                {
1998                active_count--;           /* Remove non-match possibility */
1999                next_active_state--;
2000                }
2001              if (++count >= GET2(code, 1))
2002                { ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, 0); }
2003              else
2004                { ADD_NEW_DATA(-state_offset, count, 0); }
2005              }
2006            }
2007          break;
2008    
2009          /*-----------------------------------------------------------------*/
2010          case OP_HSPACE_EXTRA + OP_TYPEEXACT:
2011          case OP_HSPACE_EXTRA + OP_TYPEUPTO:
2012          case OP_HSPACE_EXTRA + OP_TYPEMINUPTO:
2013          case OP_HSPACE_EXTRA + OP_TYPEPOSUPTO:
2014          if (codevalue != OP_HSPACE_EXTRA + OP_TYPEEXACT)
2015            { ADD_ACTIVE(state_offset + 2 + IMM2_SIZE, 0); }
2016          count = current_state->count;  /* Number already matched */
2017          if (clen > 0)
2018            {
2019            BOOL OK;
2020            switch (c)
2021              {
2022              HSPACE_CASES:
2023              OK = TRUE;
2024              break;
2025    
2026            default:            default:
2027              OK = FALSE;
2028            break;            break;
2029            }            }
2030    
2031            if (OK == (d == OP_HSPACE))
2032              {
2033              if (codevalue == OP_HSPACE_EXTRA + OP_TYPEPOSUPTO)
2034                {
2035                active_count--;           /* Remove non-match possibility */
2036                next_active_state--;
2037                }
2038              if (++count >= GET2(code, 1))
2039                { ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, 0); }
2040              else
2041                { ADD_NEW_DATA(-state_offset, count, 0); }
2042              }
2043          }          }
2044        break;        break;
2045    
# Line 1373  for (;;) Line 2055  for (;;)
2055        break;        break;
2056    
2057        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
2058        case OP_CHARNC:        case OP_CHARI:
2059        if (clen == 0) break;        if (clen == 0) break;
2060    
2061  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
2062        if (utf8)        if (utf)
2063          {          {
2064          if (c == d) { ADD_NEW(state_offset + dlen + 1, 0); } else          if (c == d) { ADD_NEW(state_offset + dlen + 1, 0); } else
2065            {            {
2066            unsigned int othercase;            unsigned int othercase;
2067            if (c < 128) othercase = fcc[c]; else            if (c < 128)
2068                othercase = fcc[c];
2069            /* If we have Unicode property support, we can use it to test the            else
2070            other case of the character. */              /* If we have Unicode property support, we can use it to test the
2071                other case of the character. */
2072  #ifdef SUPPORT_UCP  #ifdef SUPPORT_UCP
2073            othercase = _pcre_ucp_othercase(c);              othercase = UCD_OTHERCASE(c);
2074  #else  #else
2075            othercase = NOTACHAR;              othercase = NOTACHAR;
2076  #endif  #endif
2077    
2078            if (d == othercase) { ADD_NEW(state_offset + dlen + 1, 0); }            if (d == othercase) { ADD_NEW(state_offset + dlen + 1, 0); }
2079            }            }
2080          }          }
2081        else        else
2082  #endif  /* SUPPORT_UTF8 */  #endif  /* SUPPORT_UTF */
2083          /* Not UTF mode */
       /* Non-UTF-8 mode */  
2084          {          {
2085          if (lcc[c] == lcc[d]) { ADD_NEW(state_offset + 2, 0); }          if (TABLE_GET(c, lcc, c) == TABLE_GET(d, lcc, d))
2086              { ADD_NEW(state_offset + 2, 0); }
2087          }          }
2088        break;        break;
2089    
# Line 1413  for (;;) Line 2095  for (;;)
2095        to wait for them to pass before continuing. */        to wait for them to pass before continuing. */
2096    
2097        case OP_EXTUNI:        case OP_EXTUNI:
2098        if (clen > 0 && _pcre_ucp_findprop(c, &chartype, &script) != ucp_M)        if (clen > 0)
2099          {          {
2100          const uschar *nptr = ptr + clen;          int lgb, rgb;
2101            const pcre_uchar *nptr = ptr + clen;
2102          int ncount = 0;          int ncount = 0;
2103            lgb = UCD_GRAPHBREAK(c);
2104          while (nptr < end_subject)          while (nptr < end_subject)
2105            {            {
2106            int nclen = 1;            dlen = 1;
2107            GETCHARLEN(c, nptr, nclen);            if (!utf) d = *nptr; else { GETCHARLEN(d, nptr, dlen); }
2108            if (_pcre_ucp_findprop(c, &chartype, &script) != ucp_M) break;            rgb = UCD_GRAPHBREAK(d);
2109              if ((PRIV(ucp_gbtable)[lgb] & (1 << rgb)) == 0) break;
2110            ncount++;            ncount++;
2111            nptr += nclen;            lgb = rgb;
2112              nptr += dlen;
2113            }            }
2114            if (nptr >= end_subject && (md->moptions & PCRE_PARTIAL_HARD) != 0)
2115                reset_could_continue = TRUE;
2116          ADD_NEW_DATA(-(state_offset + 1), 0, ncount);          ADD_NEW_DATA(-(state_offset + 1), 0, ncount);
2117          }          }
2118        break;        break;
# Line 1438  for (;;) Line 2126  for (;;)
2126        case OP_ANYNL:        case OP_ANYNL:
2127        if (clen > 0) switch(c)        if (clen > 0) switch(c)
2128          {          {
2129          case 0x000a:          case CHAR_VT:
2130          case 0x000b:          case CHAR_FF:
2131          case 0x000c:          case CHAR_NEL:
2132          case 0x0085:  #ifndef EBCDIC
2133          case 0x2028:          case 0x2028:
2134          case 0x2029:          case 0x2029:
2135    #endif  /* Not EBCDIC */
2136            if ((md->moptions & PCRE_BSR_ANYCRLF) != 0) break;
2137    
2138            case CHAR_LF:
2139          ADD_NEW(state_offset + 1, 0);          ADD_NEW(state_offset + 1, 0);
2140          break;          break;
2141          case 0x000d:  
2142          if (ptr + 1 < end_subject && ptr[1] == 0x0a)          case CHAR_CR:
2143            if (ptr + 1 >= end_subject)
2144              {
2145              ADD_NEW(state_offset + 1, 0);
2146              if ((md->moptions & PCRE_PARTIAL_HARD) != 0)
2147                reset_could_continue = TRUE;
2148              }
2149            else if (ptr[1] == CHAR_LF)
2150            {            {
2151            ADD_NEW_DATA(-(state_offset + 1), 0, 1);            ADD_NEW_DATA(-(state_offset + 1), 0, 1);
2152            }            }
# Line 1460  for (;;) Line 2159  for (;;)
2159        break;        break;
2160    
2161        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
2162        /* Match a negated single character. This is only used for one-byte        case OP_NOT_VSPACE:
2163        characters, that is, we know that d < 256. The character we are        if (clen > 0) switch(c)
2164        checking (c) can be multibyte. */          {
2165            VSPACE_CASES:
2166            break;
2167    
2168            default:
2169            ADD_NEW(state_offset + 1, 0);
2170            break;
2171            }
2172          break;
2173    
2174          /*-----------------------------------------------------------------*/
2175          case OP_VSPACE:
2176          if (clen > 0) switch(c)
2177            {
2178            VSPACE_CASES:
2179            ADD_NEW(state_offset + 1, 0);
2180            break;
2181    
2182            default:
2183            break;
2184            }
2185          break;
2186    
2187          /*-----------------------------------------------------------------*/
2188          case OP_NOT_HSPACE:
2189          if (clen > 0) switch(c)
2190            {
2191            HSPACE_CASES:
2192            break;
2193    
2194            default:
2195            ADD_NEW(state_offset + 1, 0);
2196            break;
2197            }
2198          break;
2199    
2200          /*-----------------------------------------------------------------*/
2201          case OP_HSPACE:
2202          if (clen > 0) switch(c)
2203            {
2204            HSPACE_CASES:
2205            ADD_NEW(state_offset + 1, 0);
2206            break;
2207    
2208            default:
2209            break;
2210            }
2211          break;
2212    
2213          /*-----------------------------------------------------------------*/
2214          /* Match a negated single character casefully. */
2215    
2216        case OP_NOT:        case OP_NOT:
2217          if (clen > 0 && c != d) { ADD_NEW(state_offset + dlen + 1, 0); }
2218          break;
2219    
2220          /*-----------------------------------------------------------------*/
2221          /* Match a negated single character caselessly. */
2222    
2223          case OP_NOTI:
2224        if (clen > 0)        if (clen > 0)
2225          {          {
2226          unsigned int otherd = ((ims & PCRE_CASELESS) != 0)? fcc[d] : d;          unsigned int otherd;
2227          if (c != d && c != otherd) { ADD_NEW(state_offset + dlen + 1, 0); }  #ifdef SUPPORT_UTF
2228            if (utf && d >= 128)
2229              {
2230    #ifdef SUPPORT_UCP
2231              otherd = UCD_OTHERCASE(d);
2232    #endif  /* SUPPORT_UCP */
2233              }
2234            else
2235    #endif  /* SUPPORT_UTF */
2236            otherd = TABLE_GET(d, fcc, d);
2237            if (c != d && c != otherd)
2238              { ADD_NEW(state_offset + dlen + 1, 0); }
2239          }          }
2240        break;        break;
2241    
2242        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
2243          case OP_PLUSI:
2244          case OP_MINPLUSI:
2245          case OP_POSPLUSI:
2246          case OP_NOTPLUSI:
2247          case OP_NOTMINPLUSI:
2248          case OP_NOTPOSPLUSI:
2249          caseless = TRUE;
2250          codevalue -= OP_STARI - OP_STAR;
2251    
2252          /* Fall through */
2253        case OP_PLUS:        case OP_PLUS:
2254        case OP_MINPLUS:        case OP_MINPLUS:
2255        case OP_POSPLUS:        case OP_POSPLUS:
# Line 1484  for (;;) Line 2261  for (;;)
2261        if (clen > 0)        if (clen > 0)
2262          {          {
2263          unsigned int otherd = NOTACHAR;          unsigned int otherd = NOTACHAR;
2264          if ((ims & PCRE_CASELESS) != 0)          if (caseless)
2265            {            {
2266  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
2267            if (utf8 && d >= 128)            if (utf && d >= 128)
2268              {              {
2269  #ifdef SUPPORT_UCP  #ifdef SUPPORT_UCP
2270              otherd = _pcre_ucp_othercase(d);              otherd = UCD_OTHERCASE(d);
2271  #endif  /* SUPPORT_UCP */  #endif  /* SUPPORT_UCP */
2272              }              }
2273            else            else
2274  #endif  /* SUPPORT_UTF8 */  #endif  /* SUPPORT_UTF */
2275            otherd = fcc[d];            otherd = TABLE_GET(d, fcc, d);
2276            }            }
2277          if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))          if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))
2278            {            {
# Line 1512  for (;;) Line 2289  for (;;)
2289        break;        break;
2290    
2291        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
2292          case OP_QUERYI:
2293          case OP_MINQUERYI:
2294          case OP_POSQUERYI:
2295          case OP_NOTQUERYI:
2296          case OP_NOTMINQUERYI:
2297          case OP_NOTPOSQUERYI:
2298          caseless = TRUE;
2299          codevalue -= OP_STARI - OP_STAR;
2300          /* Fall through */
2301        case OP_QUERY:        case OP_QUERY:
2302        case OP_MINQUERY:        case OP_MINQUERY:
2303        case OP_POSQUERY:        case OP_POSQUERY:
# Line 1522  for (;;) Line 2308  for (;;)
2308        if (clen > 0)        if (clen > 0)
2309          {          {
2310          unsigned int otherd = NOTACHAR;          unsigned int otherd = NOTACHAR;
2311          if ((ims & PCRE_CASELESS) != 0)          if (caseless)
2312            {            {
2313  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
2314            if (utf8 && d >= 128)            if (utf && d >= 128)
2315              {              {
2316  #ifdef SUPPORT_UCP  #ifdef SUPPORT_UCP
2317              otherd = _pcre_ucp_othercase(d);              otherd = UCD_OTHERCASE(d);
2318  #endif  /* SUPPORT_UCP */  #endif  /* SUPPORT_UCP */
2319              }              }
2320            else            else
2321  #endif  /* SUPPORT_UTF8 */  #endif  /* SUPPORT_UTF */
2322            otherd = fcc[d];            otherd = TABLE_GET(d, fcc, d);
2323            }            }
2324          if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))          if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))
2325            {            {
# Line 1548  for (;;) Line 2334  for (;;)
2334        break;        break;
2335    
2336        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
2337          case OP_STARI:
2338          case OP_MINSTARI:
2339          case OP_POSSTARI:
2340          case OP_NOTSTARI:
2341          case OP_NOTMINSTARI:
2342          case OP_NOTPOSSTARI:
2343          caseless = TRUE;
2344          codevalue -= OP_STARI - OP_STAR;
2345          /* Fall through */
2346        case OP_STAR:        case OP_STAR:
2347        case OP_MINSTAR:        case OP_MINSTAR:
2348        case OP_POSSTAR:        case OP_POSSTAR:
# Line 1558  for (;;) Line 2353  for (;;)
2353        if (clen > 0)        if (clen > 0)
2354          {          {
2355          unsigned int otherd = NOTACHAR;          unsigned int otherd = NOTACHAR;
2356          if ((ims & PCRE_CASELESS) != 0)          if (caseless)
2357            {            {
2358  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
2359            if (utf8 && d >= 128)            if (utf && d >= 128)
2360              {              {
2361  #ifdef SUPPORT_UCP  #ifdef SUPPORT_UCP
2362              otherd = _pcre_ucp_othercase(d);              otherd = UCD_OTHERCASE(d);
2363  #endif  /* SUPPORT_UCP */  #endif  /* SUPPORT_UCP */
2364              }              }
2365            else            else
2366  #endif  /* SUPPORT_UTF8 */  #endif  /* SUPPORT_UTF */
2367            otherd = fcc[d];            otherd = TABLE_GET(d, fcc, d);
2368            }            }
2369          if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))          if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))
2370            {            {
# Line 1584  for (;;) Line 2379  for (;;)
2379        break;        break;
2380    
2381        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
2382          case OP_EXACTI:
2383          case OP_NOTEXACTI:
2384          caseless = TRUE;
2385          codevalue -= OP_STARI - OP_STAR;
2386          /* Fall through */
2387        case OP_EXACT:        case OP_EXACT:
2388        case OP_NOTEXACT:        case OP_NOTEXACT:
2389        count = current_state->count;  /* Number already matched */        count = current_state->count;  /* Number already matched */
2390        if (clen > 0)        if (clen > 0)
2391          {          {
2392          unsigned int otherd = NOTACHAR;          unsigned int otherd = NOTACHAR;
2393          if ((ims & PCRE_CASELESS) != 0)          if (caseless)
2394            {            {
2395  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
2396            if (utf8 && d >= 128)            if (utf && d >= 128)
2397              {              {
2398  #ifdef SUPPORT_UCP  #ifdef SUPPORT_UCP
2399              otherd = _pcre_ucp_othercase(d);              otherd = UCD_OTHERCASE(d);
2400  #endif  /* SUPPORT_UCP */  #endif  /* SUPPORT_UCP */
2401              }              }
2402            else            else
2403  #endif  /* SUPPORT_UTF8 */  #endif  /* SUPPORT_UTF */
2404            otherd = fcc[d];            otherd = TABLE_GET(d, fcc, d);
2405            }            }
2406          if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))          if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))
2407            {            {
2408            if (++count >= GET2(code, 1))            if (++count >= GET2(code, 1))
2409              { ADD_NEW(state_offset + dlen + 3, 0); }              { ADD_NEW(state_offset + dlen + 1 + IMM2_SIZE, 0); }
2410            else            else
2411              { ADD_NEW(state_offset, count); }              { ADD_NEW(state_offset, count); }
2412            }            }
# Line 1614  for (;;) Line 2414  for (;;)
2414        break;        break;
2415    
2416        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
2417          case OP_UPTOI:
2418          case OP_MINUPTOI:
2419          case OP_POSUPTOI:
2420          case OP_NOTUPTOI:
2421          case OP_NOTMINUPTOI:
2422          case OP_NOTPOSUPTOI:
2423          caseless = TRUE;
2424          codevalue -= OP_STARI - OP_STAR;
2425          /* Fall through */
2426        case OP_UPTO:        case OP_UPTO:
2427        case OP_MINUPTO:        case OP_MINUPTO:
2428        case OP_POSUPTO:        case OP_POSUPTO:
2429        case OP_NOTUPTO:        case OP_NOTUPTO:
2430        case OP_NOTMINUPTO:        case OP_NOTMINUPTO:
2431        case OP_NOTPOSUPTO:        case OP_NOTPOSUPTO:
2432        ADD_ACTIVE(state_offset + dlen + 3, 0);        ADD_ACTIVE(state_offset + dlen + 1 + IMM2_SIZE, 0);
2433        count = current_state->count;  /* Number already matched */        count = current_state->count;  /* Number already matched */
2434        if (clen > 0)        if (clen > 0)
2435          {          {
2436          unsigned int otherd = NOTACHAR;          unsigned int otherd = NOTACHAR;
2437          if ((ims & PCRE_CASELESS) != 0)          if (caseless)
2438            {            {
2439  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
2440            if (utf8 && d >= 128)            if (utf && d >= 128)
2441              {              {
2442  #ifdef SUPPORT_UCP  #ifdef SUPPORT_UCP
2443              otherd = _pcre_ucp_othercase(d);              otherd = UCD_OTHERCASE(d);
2444  #endif  /* SUPPORT_UCP */  #endif  /* SUPPORT_UCP */
2445              }              }
2446            else            else
2447  #endif  /* SUPPORT_UTF8 */  #endif  /* SUPPORT_UTF */
2448            otherd = fcc[d];            otherd = TABLE_GET(d, fcc, d);
2449            }            }
2450          if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))          if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))
2451            {            {
# Line 1646  for (;;) Line 2455  for (;;)
2455              next_active_state--;              next_active_state--;
2456              }              }
2457            if (++count >= GET2(code, 1))            if (++count >= GET2(code, 1))
2458              { ADD_NEW(state_offset + dlen + 3, 0); }              { ADD_NEW(state_offset + dlen + 1 + IMM2_SIZE, 0); }
2459            else            else
2460              { ADD_NEW(state_offset, count); }              { ADD_NEW(state_offset, count); }
2461            }            }
# Line 1663  for (;;) Line 2472  for (;;)
2472          {          {
2473          BOOL isinclass = FALSE;          BOOL isinclass = FALSE;
2474          int next_state_offset;          int next_state_offset;
2475          const uschar *ecode;          const pcre_uchar *ecode;
2476    
2477          /* For a simple class, there is always just a 32-byte table, and we          /* For a simple class, there is always just a 32-byte table, and we
2478          can set isinclass from it. */          can set isinclass from it. */
2479    
2480          if (codevalue != OP_XCLASS)          if (codevalue != OP_XCLASS)
2481            {            {
2482            ecode = code + 33;            ecode = code + 1 + (32 / sizeof(pcre_uchar));
2483            if (clen > 0)            if (clen > 0)
2484              {              {
2485              isinclass = (c > 255)? (codevalue == OP_NCLASS) :              isinclass = (c > 255)? (codevalue == OP_NCLASS) :
2486                ((code[1 + c/8] & (1 << (c&7))) != 0);                ((((pcre_uint8 *)(code + 1))[c/8] & (1 << (c&7))) != 0);
2487              }              }
2488            }            }
2489    
# Line 1685  for (;;) Line 2494  for (;;)
2494          else          else
2495           {           {
2496           ecode = code + GET(code, 1);           ecode = code + GET(code, 1);
2497           if (clen > 0) isinclass = _pcre_xclass(c, code + 1 + LINK_SIZE);           if (clen > 0) isinclass = PRIV(xclass)(c, code + 1 + LINK_SIZE, utf);
2498           }           }
2499    
2500          /* At this point, isinclass is set for all kinds of class, and ecode          /* At this point, isinclass is set for all kinds of class, and ecode
2501          points to the byte after the end of the class. If there is a          points to the byte after the end of the class. If there is a
2502          quantifier, this is where it will be. */          quantifier, this is where it will be. */
2503    
2504          next_state_offset = ecode - start_code;          next_state_offset = (int)(ecode - start_code);
2505    
2506          switch (*ecode)          switch (*ecode)
2507            {            {
# Line 1719  for (;;) Line 2528  for (;;)
2528            case OP_CRMINRANGE:            case OP_CRMINRANGE:
2529            count = current_state->count;  /* Already matched */            count = current_state->count;  /* Already matched */
2530            if (count >= GET2(ecode, 1))            if (count >= GET2(ecode, 1))
2531              { ADD_ACTIVE(next_state_offset + 5, 0); }              { ADD_ACTIVE(next_state_offset + 1 + 2 * IMM2_SIZE, 0); }
2532            if (isinclass)            if (isinclass)
2533              {              {
2534              int max = GET2(ecode, 3);              int max = GET2(ecode, 1 + IMM2_SIZE);
2535              if (++count >= max && max != 0)   /* Max 0 => no limit */              if (++count >= max && max != 0)   /* Max 0 => no limit */
2536                { ADD_NEW(next_state_offset + 5, 0); }                { ADD_NEW(next_state_offset + 1 + 2 * IMM2_SIZE, 0); }
2537              else              else
2538                { ADD_NEW(state_offset, count); }                { ADD_NEW(state_offset, count); }
2539              }              }
# Line 1739  for (;;) Line 2548  for (;;)
2548    
2549  /* ========================================================================== */  /* ========================================================================== */
2550        /* These are the opcodes for fancy brackets of various kinds. We have        /* These are the opcodes for fancy brackets of various kinds. We have
2551        to use recursion in order to handle them. */        to use recursion in order to handle them. The "always failing" assertion
2552          (?!) is optimised to OP_FAIL when compiling, so we have to support that,
2553          though the other "backtracking verbs" are not supported. */
2554    
2555          case OP_FAIL:
2556          forced_fail++;    /* Count FAILs for multiple states */
2557          break;
2558    
2559        case OP_ASSERT:        case OP_ASSERT:
2560        case OP_ASSERT_NOT:        case OP_ASSERT_NOT:
# Line 1749  for (;;) Line 2564  for (;;)
2564          int rc;          int rc;
2565          int local_offsets[2];          int local_offsets[2];
2566          int local_workspace[1000];          int local_workspace[1000];
2567          const uschar *endasscode = code + GET(code, 1);          const pcre_uchar *endasscode = code + GET(code, 1);
2568    
2569          while (*endasscode == OP_ALT) endasscode += GET(endasscode, 1);          while (*endasscode == OP_ALT) endasscode += GET(endasscode, 1);
2570    
# Line 1757  for (;;) Line 2572  for (;;)
2572            md,                                   /* static match data */            md,                                   /* static match data */
2573            code,                                 /* this subexpression's code */            code,                                 /* this subexpression's code */
2574            ptr,                                  /* where we currently are */            ptr,                                  /* where we currently are */
2575            ptr - start_subject,                  /* start offset */            (int)(ptr - start_subject),           /* start offset */
2576            local_offsets,                        /* offset vector */            local_offsets,                        /* offset vector */
2577            sizeof(local_offsets)/sizeof(int),    /* size of same */            sizeof(local_offsets)/sizeof(int),    /* size of same */
2578            local_workspace,                      /* workspace vector */            local_workspace,                      /* workspace vector */
2579            sizeof(local_workspace)/sizeof(int),  /* size of same */            sizeof(local_workspace)/sizeof(int),  /* size of same */
2580            ims,                                  /* the current ims flags */            rlevel);                              /* function recursion level */
           rlevel,                               /* function recursion level */  
           recursing);                           /* pass on regex recursion */  
2581    
2582            if (rc == PCRE_ERROR_DFA_UITEM) return rc;
2583          if ((rc >= 0) == (codevalue == OP_ASSERT || codevalue == OP_ASSERTBACK))          if ((rc >= 0) == (codevalue == OP_ASSERT || codevalue == OP_ASSERTBACK))
2584              { ADD_ACTIVE(endasscode + LINK_SIZE + 1 - start_code, 0); }              { ADD_ACTIVE((int)(endasscode + LINK_SIZE + 1 - start_code), 0); }
2585          }          }
2586        break;        break;
2587    
# Line 1777  for (;;) Line 2591  for (;;)
2591          {          {
2592          int local_offsets[1000];          int local_offsets[1000];
2593          int local_workspace[1000];          int local_workspace[1000];
2594          int condcode = code[LINK_SIZE+1];          int codelink = GET(code, 1);
2595            int condcode;
2596    
2597            /* Because of the way auto-callout works during compile, a callout item
2598            is inserted between OP_COND and an assertion condition. This does not
2599            happen for the other conditions. */
2600    
2601            if (code[LINK_SIZE+1] == OP_CALLOUT)
2602              {
2603              rrc = 0;
2604              if (PUBL(callout) != NULL)
2605                {
2606                PUBL(callout_block) cb;
2607                cb.version          = 1;   /* Version 1 of the callout block */
2608                cb.callout_number   = code[LINK_SIZE+2];
2609                cb.offset_vector    = offsets;
2610    #if defined COMPILE_PCRE8
2611                cb.subject          = (PCRE_SPTR)start_subject;
2612    #elif defined COMPILE_PCRE16
2613                cb.subject          = (PCRE_SPTR16)start_subject;
2614    #elif defined COMPILE_PCRE32
2615                cb.subject          = (PCRE_SPTR32)start_subject;
2616    #endif
2617                cb.subject_length   = (int)(end_subject - start_subject);
2618                cb.start_match      = (int)(current_subject - start_subject);
2619                cb.current_position = (int)(ptr - start_subject);
2620                cb.pattern_position = GET(code, LINK_SIZE + 3);
2621                cb.next_item_length = GET(code, 3 + 2*LINK_SIZE);
2622                cb.capture_top      = 1;
2623                cb.capture_last     = -1;
2624                cb.callout_data     = md->callout_data;
2625                cb.mark             = NULL;   /* No (*MARK) support */
2626                if ((rrc = (*PUBL(callout))(&cb)) < 0) return rrc;   /* Abandon */
2627                }
2628              if (rrc > 0) break;                      /* Fail this thread */
2629              code += PRIV(OP_lengths)[OP_CALLOUT];    /* Skip callout data */
2630              }
2631    
2632            condcode = code[LINK_SIZE+1];
2633    
2634          /* Back reference conditions are not supported */          /* Back reference conditions are not supported */
2635    
2636          if (condcode == OP_CREF) return PCRE_ERROR_DFA_UCOND;          if (condcode == OP_CREF || condcode == OP_NCREF)
2637              return PCRE_ERROR_DFA_UCOND;
2638    
2639          /* The DEFINE condition is always false */          /* The DEFINE condition is always false */
2640    
2641          if (condcode == OP_DEF)          if (condcode == OP_DEF)
2642            {            { ADD_ACTIVE(state_offset + codelink + LINK_SIZE + 1, 0); }
           ADD_ACTIVE(state_offset + GET(code, 1) + LINK_SIZE + 1, 0);  
           }  
2643    
2644          /* The only supported version of OP_RREF is for the value RREF_ANY,          /* The only supported version of OP_RREF is for the value RREF_ANY,
2645          which means "test if in any recursion". We can't test for specifically          which means "test if in any recursion". We can't test for specifically
2646          recursed groups. */          recursed groups. */
2647    
2648          else if (condcode == OP_RREF)          else if (condcode == OP_RREF || condcode == OP_NRREF)
2649            {            {
2650            int value = GET2(code, LINK_SIZE+2);            int value = GET2(code, LINK_SIZE + 2);
2651            if (value != RREF_ANY) return PCRE_ERROR_DFA_UCOND;            if (value != RREF_ANY) return PCRE_ERROR_DFA_UCOND;
2652            if (recursing > 0) { ADD_ACTIVE(state_offset + LINK_SIZE + 4, 0); }            if (md->recursive != NULL)
2653              else { ADD_ACTIVE(state_offset + GET(code, 1) + LINK_SIZE + 1, 0); }              { ADD_ACTIVE(state_offset + LINK_SIZE + 2 + IMM2_SIZE, 0); }
2654              else { ADD_ACTIVE(state_offset + codelink + LINK_SIZE + 1, 0); }
2655            }            }
2656    
2657          /* Otherwise, the condition is an assertion */          /* Otherwise, the condition is an assertion */
# Line 1807  for (;;) Line 2659  for (;;)
2659          else          else
2660            {            {
2661            int rc;            int rc;
2662            const uschar *asscode = code + LINK_SIZE + 1;            const pcre_uchar *asscode = code + LINK_SIZE + 1;
2663            const uschar *endasscode = asscode + GET(asscode, 1);            const pcre_uchar *endasscode = asscode + GET(asscode, 1);
2664    
2665            while (*endasscode == OP_ALT) endasscode += GET(endasscode, 1);            while (*endasscode == OP_ALT) endasscode += GET(endasscode, 1);
2666    
# Line 1816  for (;;) Line 2668  for (;;)
2668              md,                                   /* fixed match data */              md,                                   /* fixed match data */
2669              asscode,                              /* this subexpression's code */              asscode,                              /* this subexpression's code */
2670              ptr,                                  /* where we currently are */              ptr,                                  /* where we currently are */
2671              ptr - start_subject,                  /* start offset */              (int)(ptr - start_subject),           /* start offset */
2672              local_offsets,                        /* offset vector */              local_offsets,                        /* offset vector */
2673              sizeof(local_offsets)/sizeof(int),    /* size of same */              sizeof(local_offsets)/sizeof(int),    /* size of same */
2674              local_workspace,                      /* workspace vector */              local_workspace,                      /* workspace vector */
2675              sizeof(local_workspace)/sizeof(int),  /* size of same */              sizeof(local_workspace)/sizeof(int),  /* size of same */
2676              ims,                                  /* the current ims flags */              rlevel);                              /* function recursion level */
             rlevel,                               /* function recursion level */  
             recursing);                           /* pass on regex recursion */  
2677    
2678              if (rc == PCRE_ERROR_DFA_UITEM) return rc;
2679            if ((rc >= 0) ==            if ((rc >= 0) ==
2680                  (condcode == OP_ASSERT || condcode == OP_ASSERTBACK))                  (condcode == OP_ASSERT || condcode == OP_ASSERTBACK))
2681              { ADD_ACTIVE(endasscode + LINK_SIZE + 1 - start_code, 0); }              { ADD_ACTIVE((int)(endasscode + LINK_SIZE + 1 - start_code), 0); }
2682            else            else
2683              { ADD_ACTIVE(state_offset + GET(code, 1) + LINK_SIZE + 1, 0); }              { ADD_ACTIVE(state_offset + codelink + LINK_SIZE + 1, 0); }
2684            }            }
2685          }          }
2686        break;        break;
# Line 1837  for (;;) Line 2688  for (;;)
2688        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
2689        case OP_RECURSE:        case OP_RECURSE:
2690          {          {
2691            dfa_recursion_info *ri;
2692          int local_offsets[1000];          int local_offsets[1000];
2693          int local_workspace[1000];          int local_workspace[1000];
2694            const pcre_uchar *callpat = start_code + GET(code, 1);
2695            int recno = (callpat == md->start_code)? 0 :
2696              GET2(callpat, 1 + LINK_SIZE);
2697          int rc;          int rc;
2698    
2699          DPRINTF(("%.*sStarting regex recursion %d\n", rlevel*2-2, SP,          DPRINTF(("%.*sStarting regex recursion\n", rlevel*2-2, SP));
2700            recursing + 1));  
2701            /* Check for repeating a recursion without advancing the subject
2702            pointer. This should catch convoluted mutual recursions. (Some simple
2703            cases are caught at compile time.) */
2704    
2705            for (ri = md->recursive; ri != NULL; ri = ri->prevrec)
2706              if (recno == ri->group_num && ptr == ri->subject_position)
2707                return PCRE_ERROR_RECURSELOOP;
2708    
2709            /* Remember this recursion and where we started it so as to
2710            catch infinite loops. */
2711    
2712            new_recursive.group_num = recno;
2713            new_recursive.subject_position = ptr;
2714            new_recursive.prevrec = md->recursive;
2715            md->recursive = &new_recursive;
2716    
2717          rc = internal_dfa_exec(          rc = internal_dfa_exec(
2718            md,                                   /* fixed match data */            md,                                   /* fixed match data */
2719            start_code + GET(code, 1),            /* this subexpression's code */            callpat,                              /* this subexpression's code */
2720            ptr,                                  /* where we currently are */            ptr,                                  /* where we currently are */
2721            ptr - start_subject,                  /* start offset */            (int)(ptr - start_subject),           /* start offset */
2722            local_offsets,                        /* offset vector */            local_offsets,                        /* offset vector */
2723            sizeof(local_offsets)/sizeof(int),    /* size of same */            sizeof(local_offsets)/sizeof(int),    /* size of same */
2724            local_workspace,                      /* workspace vector */            local_workspace,                      /* workspace vector */
2725            sizeof(local_workspace)/sizeof(int),  /* size of same */            sizeof(local_workspace)/sizeof(int),  /* size of same */
2726            ims,                                  /* the current ims flags */            rlevel);                              /* function recursion level */
2727            rlevel,                               /* function recursion level */  
2728            recursing + 1);                       /* regex recurse level */          md->recursive = new_recursive.prevrec;  /* Done this recursion */
2729    
2730          DPRINTF(("%.*sReturn from regex recursion %d: rc=%d\n", rlevel*2-2, SP,          DPRINTF(("%.*sReturn from regex recursion: rc=%d\n", rlevel*2-2, SP,
2731            recursing + 1, rc));            rc));
2732    
2733          /* Ran out of internal offsets */          /* Ran out of internal offsets */
2734    
# Line 1872  for (;;) Line 2742  for (;;)
2742            {            {
2743            for (rc = rc*2 - 2; rc >= 0; rc -= 2)            for (rc = rc*2 - 2; rc >= 0; rc -= 2)
2744              {              {
             const uschar *p = start_subject + local_offsets[rc];  
             const uschar *pp = start_subject + local_offsets[rc+1];  
2745              int charcount = local_offsets[rc+1] - local_offsets[rc];              int charcount = local_offsets[rc+1] - local_offsets[rc];
2746              while (p < pp) if ((*p++ & 0xc0) == 0x80) charcount--;  #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
2747                if (utf)
2748                  {
2749                  const pcre_uchar *p = start_subject + local_offsets[rc];
2750                  const pcre_uchar *pp = start_subject + local_offsets[rc+1];
2751                  while (p < pp) if (NOT_FIRSTCHAR(*p++)) charcount--;
2752                  }
2753    #endif
2754              if (charcount > 0)              if (charcount > 0)
2755                {                {
2756                ADD_NEW_DATA(-(state_offset + LINK_SIZE + 1), 0, (charcount - 1));                ADD_NEW_DATA(-(state_offset + LINK_SIZE + 1), 0, (charcount - 1));
# Line 1891  for (;;) Line 2766  for (;;)
2766        break;        break;
2767    
2768        /*-----------------------------------------------------------------*/        /*-----------------------------------------------------------------*/
2769          case OP_BRAPOS:
2770          case OP_SBRAPOS:
2771          case OP_CBRAPOS:
2772          case OP_SCBRAPOS:
2773          case OP_BRAPOSZERO:
2774            {
2775            int charcount, matched_count;
2776            const pcre_uchar *local_ptr = ptr;
2777            BOOL allow_zero;
2778    
2779            if (codevalue == OP_BRAPOSZERO)
2780              {
2781              allow_zero = TRUE;
2782              codevalue = *(++code);  /* Codevalue will be one of above BRAs */
2783              }
2784            else allow_zero = FALSE;
2785    
2786            /* Loop to match the subpattern as many times as possible as if it were
2787            a complete pattern. */
2788    
2789            for (matched_count = 0;; matched_count++)
2790              {
2791              int local_offsets[2];
2792              int local_workspace[1000];
2793    
2794              int rc = internal_dfa_exec(
2795                md,                                   /* fixed match data */
2796                code,                                 /* this subexpression's code */
2797                local_ptr,                            /* where we currently are */
2798                (int)(ptr - start_subject),           /* start offset */
2799                local_offsets,                        /* offset vector */
2800                sizeof(local_offsets)/sizeof(int),    /* size of same */
2801                local_workspace,                      /* workspace vector */
2802                sizeof(local_workspace)/sizeof(int),  /* size of same */
2803                rlevel);                              /* function recursion level */
2804    
2805              /* Failed to match */
2806    
2807              if (rc < 0)
2808                {
2809                if (rc != PCRE_ERROR_NOMATCH) return rc;
2810                break;
2811                }
2812    
2813              /* Matched: break the loop if zero characters matched. */
2814    
2815              charcount = local_offsets[1] - local_offsets[0];
2816              if (charcount == 0) break;
2817              local_ptr += charcount;    /* Advance temporary position ptr */
2818              }
2819    
2820            /* At this point we have matched the subpattern matched_count
2821            times, and local_ptr is pointing to the character after the end of the
2822            last match. */
2823    
2824            if (matched_count > 0 || allow_zero)
2825              {
2826              const pcre_uchar *end_subpattern = code;
2827              int next_state_offset;
2828    
2829              do { end_subpattern += GET(end_subpattern, 1); }
2830                while (*end_subpattern == OP_ALT);
2831              next_state_offset =
2832                (int)(end_subpattern - start_code + LINK_SIZE + 1);
2833    
2834              /* Optimization: if there are no more active states, and there
2835              are no new states yet set up, then skip over the subject string
2836              right here, to save looping. Otherwise, set up the new state to swing
2837              into action when the end of the matched substring is reached. */
2838    
2839              if (i + 1 >= active_count && new_count == 0)
2840                {
2841                ptr = local_ptr;
2842                clen = 0;
2843                ADD_NEW(next_state_offset, 0);
2844                }
2845              else
2846                {
2847                const pcre_uchar *p = ptr;
2848                const pcre_uchar *pp = local_ptr;
2849                charcount = (int)(pp - p);
2850    #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
2851                if (utf) while (p < pp) if (NOT_FIRSTCHAR(*p++)) charcount--;
2852    #endif
2853                ADD_NEW_DATA(-next_state_offset, 0, (charcount - 1));
2854                }
2855              }
2856            }
2857          break;
2858    
2859          /*-----------------------------------------------------------------*/
2860        case OP_ONCE:        case OP_ONCE:
2861          case OP_ONCE_NC:
2862          {          {
2863          int local_offsets[2];          int local_offsets[2];
2864          int local_workspace[1000];          int local_workspace[1000];
# Line 1900  for (;;) Line 2867  for (;;)
2867            md,                                   /* fixed match data */            md,                                   /* fixed match data */
2868            code,                                 /* this subexpression's code */            code,                                 /* this subexpression's code */
2869            ptr,                                  /* where we currently are */            ptr,                                  /* where we currently are */
2870            ptr - start_subject,                  /* start offset */            (int)(ptr - start_subject),           /* start offset */
2871            local_offsets,                        /* offset vector */            local_offsets,                        /* offset vector */
2872            sizeof(local_offsets)/sizeof(int),    /* size of same */            sizeof(local_offsets)/sizeof(int),    /* size of same */
2873            local_workspace,                      /* workspace vector */            local_workspace,                      /* workspace vector */
2874            sizeof(local_workspace)/sizeof(int),  /* size of same */            sizeof(local_workspace)/sizeof(int),  /* size of same */
2875            ims,                                  /* the current ims flags */            rlevel);                              /* function recursion level */
           rlevel,                               /* function recursion level */  
           recursing);                           /* pass on regex recursion */  
2876    
2877          if (rc >= 0)          if (rc >= 0)
2878            {            {
2879            const uschar *end_subpattern = code;            const pcre_uchar *end_subpattern = code;
2880            int charcount = local_offsets[1] - local_offsets[0];            int charcount = local_offsets[1] - local_offsets[0];
2881            int next_state_offset, repeat_state_offset;            int next_state_offset, repeat_state_offset;
2882    
2883            do { end_subpattern += GET(end_subpattern, 1); }            do { end_subpattern += GET(end_subpattern, 1); }
2884              while (*end_subpattern == OP_ALT);              while (*end_subpattern == OP_ALT);
2885            next_state_offset = end_subpattern - start_code + LINK_SIZE + 1;            next_state_offset =
2886                (int)(end_subpattern - start_code + LINK_SIZE + 1);
2887    
2888            /* If the end of this subpattern is KETRMAX or KETRMIN, we must            /* If the end of this subpattern is KETRMAX or KETRMIN, we must
2889            arrange for the repeat state also to be added to the relevant list.            arrange for the repeat state also to be added to the relevant list.
# Line 1925  for (;;) Line 2891  for (;;)
2891    
2892            repeat_state_offset = (*end_subpattern == OP_KETRMAX ||            repeat_state_offset = (*end_subpattern == OP_KETRMAX ||
2893                                   *end_subpattern == OP_KETRMIN)?                                   *end_subpattern == OP_KETRMIN)?
2894              end_subpattern - start_code - GET(end_subpattern, 1) : -1;              (int)(end_subpattern - start_code - GET(end_subpattern, 1)) : -1;
2895    
2896            /* If we have matched an empty string, add the next state at the            /* If we have matched an empty string, add the next state at the
2897            current character pointer. This is important so that the duplicate            current character pointer. This is important so that the duplicate
# Line 1940  for (;;) Line 2906  for (;;)
2906            /* Optimization: if there are no more active states, and there            /* Optimization: if there are no more active states, and there
2907            are no new states yet set up, then skip over the subject string            are no new states yet set up, then skip over the subject string
2908            right here, to save looping. Otherwise, set up the new state to swing            right here, to save looping. Otherwise, set up the new state to swing
2909            into action when the end of the substring is reached. */            into action when the end of the matched substring is reached. */
2910    
2911            else if (i + 1 >= active_count && new_count == 0)            else if (i + 1 >= active_count && new_count == 0)
2912              {              {
# Line 1963  for (;;) Line 2929  for (;;)
2929              }              }
2930            else            else
2931              {              {
2932              const uschar *p = start_subject + local_offsets[0];  #if defined SUPPORT_UTF && !defined COMPILE_PCRE32
2933              const uschar *pp = start_subject + local_offsets[1];              if (utf)
2934              while (p < pp) if ((*p++ & 0xc0) == 0x80) charcount--;                {
2935                  const pcre_uchar *p = start_subject + local_offsets[0];
2936                  const pcre_uchar *pp = start_subject + local_offsets[1];
2937                  while (p < pp) if (NOT_FIRSTCHAR(*p++)) charcount--;
2938                  }
2939    #endif
2940              ADD_NEW_DATA(-next_state_offset, 0, (charcount - 1));              ADD_NEW_DATA(-next_state_offset, 0, (charcount - 1));
2941              if (repeat_state_offset >= 0)              if (repeat_state_offset >= 0)
2942                { ADD_NEW_DATA(-repeat_state_offset, 0, (charcount - 1)); }                { ADD_NEW_DATA(-repeat_state_offset, 0, (charcount - 1)); }
2943              }              }
   
2944            }            }
2945          else if (rc != PCRE_ERROR_NOMATCH) return rc;          else if (rc != PCRE_ERROR_NOMATCH) return rc;
2946          }          }
# Line 1981  for (;;) Line 2951  for (;;)
2951        /* Handle callouts */        /* Handle callouts */
2952    
2953        case OP_CALLOUT:        case OP_CALLOUT:
2954        if (pcre_callout != NULL)        rrc = 0;
2955          if (PUBL(callout) != NULL)
2956          {          {
2957          int rrc;          PUBL(callout_block) cb;
         pcre_callout_block cb;  
2958          cb.version          = 1;   /* Version 1 of the callout block */          cb.version          = 1;   /* Version 1 of the callout block */
2959          cb.callout_number   = code[1];          cb.callout_number   = code[1];
2960          cb.offset_vector    = offsets;          cb.offset_vector    = offsets;
2961    #if defined COMPILE_PCRE8
2962          cb.subject          = (PCRE_SPTR)start_subject;          cb.subject          = (PCRE_SPTR)start_subject;
2963          cb.subject_length   = end_subject - start_subject;  #elif defined COMPILE_PCRE16
2964          cb.start_match      = current_subject - start_subject;          cb.subject          = (PCRE_SPTR16)start_subject;
2965          cb.current_position = ptr - start_subject;  #elif defined COMPILE_PCRE32
2966            cb.subject          = (PCRE_SPTR32)start_subject;
2967    #endif
2968            cb.subject_length   = (int)(end_subject - start_subject);
2969            cb.start_match      = (int)(current_subject - start_subject);
2970            cb.current_position = (int)(ptr - start_subject);
2971          cb.pattern_position = GET(code, 2);          cb.pattern_position = GET(code, 2);
2972          cb.next_item_length = GET(code, 2 + LINK_SIZE);          cb.next_item_length = GET(code, 2 + LINK_SIZE);
2973          cb.capture_top      = 1;          cb.capture_top      = 1;
2974          cb.capture_last     = -1;          cb.capture_last     = -1;
2975          cb.callout_data     = md->callout_data;          cb.callout_data     = md->callout_data;
2976          if ((rrc = (*pcre_callout)(&cb)) < 0) return rrc;   /* Abandon */          cb.mark             = NULL;   /* No (*MARK) support */
2977          if (rrc == 0) { ADD_ACTIVE(state_offset + 2 + 2*LINK_SIZE, 0); }          if ((rrc = (*PUBL(callout))(&cb)) < 0) return rrc;   /* Abandon */
2978          }          }
2979          if (rrc == 0)
2980            { ADD_ACTIVE(state_offset + PRIV(OP_lengths)[OP_CALLOUT], 0); }
2981        break;        break;
2982    
2983    
# Line 2015  for (;;) Line 2993  for (;;)
2993    /* We have finished the processing at the current subject character. If no    /* We have finished the processing at the current subject character. If no
2994    new states have been set for the next character, we have found all the    new states have been set for the next character, we have found all the
2995    matches that we are going to find. If we are at the top level and partial    matches that we are going to find. If we are at the top level and partial
2996    matching has been requested, check for appropriate conditions. */    matching has been requested, check for appropriate conditions.
2997    
2998      The "forced_ fail" variable counts the number of (*F) encountered for the
2999      character. If it is equal to the original active_count (saved in
3000      workspace[1]) it means that (*F) was found on every active state. In this
3001      case we don't want to give a partial match.
3002    
3003      The "could_continue" variable is true if a state could have continued but
3004      for the fact that the end of the subject was reached. */
3005    
3006    if (new_count <= 0)    if (new_count <= 0)
3007      {      {
3008      if (match_count < 0 &&                     /* No matches found */      if (rlevel == 1 &&                               /* Top level, and */
3009          rlevel == 1 &&                         /* Top level match function */          could_continue &&                            /* Some could go on, and */
3010          (md->moptions & PCRE_PARTIAL) != 0 &&  /* Want partial matching */          forced_fail != workspace[1] &&               /* Not all forced fail & */
3011          ptr >= end_subject &&                  /* Reached end of subject */          (                                            /* either... */
3012          ptr > current_subject)                 /* Matched non-empty string */          (md->moptions & PCRE_PARTIAL_HARD) != 0      /* Hard partial */
3013            ||                                           /* or... */
3014            ((md->moptions & PCRE_PARTIAL_SOFT) != 0 &&  /* Soft partial and */
3015             match_count < 0)                            /* no matches */
3016            ) &&                                         /* And... */
3017            (
3018            partial_newline ||                           /* Either partial NL */
3019              (                                          /* or ... */
3020              ptr >= end_subject &&                /* End of subject and */
3021              ptr > md->start_used_ptr)            /* Inspected non-empty string */
3022              )
3023            )
3024        {        {
3025        if (offsetcount >= 2)        if (offsetcount >= 2)
3026          {          {
3027          offsets[0] = current_subject - start_subject;          offsets[0] = (int)(md->start_used_ptr - start_subject);
3028          offsets[1] = end_subject - start_subject;          offsets[1] = (int)(end_subject - start_subject);
3029          }          }
3030        match_count = PCRE_ERROR_PARTIAL;        match_count = PCRE_ERROR_PARTIAL;
3031        }        }
# Line 2082  Returns:          > 0 => number of match Line 3079  Returns:          > 0 => number of match
3079                   < -1 => some kind of unexpected problem                   < -1 => some kind of unexpected problem
3080  */  */
3081    
3082  PCRE_EXP_DEFN int  #if defined COMPILE_PCRE8
3083    PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
3084  pcre_dfa_exec(const pcre *argument_re, const pcre_extra *extra_data,  pcre_dfa_exec(const pcre *argument_re, const pcre_extra *extra_data,
3085    const char *subject, int length, int start_offset, int options, int *offsets,    const char *subject, int length, int start_offset, int options, int *offsets,
3086    int offsetcount, int *workspace, int wscount)    int offsetcount, int *workspace, int wscount)
3087    #elif defined COMPILE_PCRE16
3088    PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
3089    pcre16_dfa_exec(const pcre16 *argument_re, const pcre16_extra *extra_data,
3090      PCRE_SPTR16 subject, int length, int start_offset, int options, int *offsets,
3091      int offsetcount, int *workspace, int wscount)
3092    #elif defined COMPILE_PCRE32
3093    PCRE_EXP_DEFN int PCRE_CALL_CONVENTION
3094    pcre32_dfa_exec(const pcre32 *argument_re, const pcre32_extra *extra_data,
3095      PCRE_SPTR32 subject, int length, int start_offset, int options, int *offsets,
3096      int offsetcount, int *workspace, int wscount)
3097    #endif
3098  {  {
3099  real_pcre *re = (real_pcre *)argument_re;  REAL_PCRE *re = (REAL_PCRE *)argument_re;
3100  dfa_match_data match_block;  dfa_match_data match_block;
3101  dfa_match_data *md = &match_block;  dfa_match_data *md = &match_block;
3102  BOOL utf8, anchored, startline, firstline;  BOOL utf, anchored, startline, firstline;
3103  const uschar *current_subject, *end_subject, *lcc;  const pcre_uchar *current_subject, *end_subject;
   
 pcre_study_data internal_study;  
3104  const pcre_study_data *study = NULL;  const pcre_study_data *study = NULL;
 real_pcre internal_re;  
3105    
3106  const uschar *req_byte_ptr;  const pcre_uchar *req_char_ptr;
3107  const uschar *start_bits = NULL;  const pcre_uint8 *start_bits = NULL;
3108  BOOL first_byte_caseless = FALSE;  BOOL has_first_char = FALSE;
3109  BOOL req_byte_caseless = FALSE;  BOOL has_req_char = FALSE;
3110  int first_byte = -1;  pcre_uchar first_char = 0;
3111  int req_byte = -1;  pcre_uchar first_char2 = 0;
3112  int req_byte2 = -1;  pcre_uchar req_char = 0;
3113    pcre_uchar req_char2 = 0;
3114  int newline;  int newline;
3115    
3116  /* Plausibility checks */  /* Plausibility checks */
# Line 2113  if (re == NULL || subject == NULL || wor Line 3120  if (re == NULL || subject == NULL || wor
3120     (offsets == NULL && offsetcount > 0)) return PCRE_ERROR_NULL;     (offsets == NULL && offsetcount > 0)) return PCRE_ERROR_NULL;
3121  if (offsetcount < 0) return PCRE_ERROR_BADCOUNT;  if (offsetcount < 0) return PCRE_ERROR_BADCOUNT;
3122  if (wscount < 20) return PCRE_ERROR_DFA_WSSIZE;  if (wscount < 20) return PCRE_ERROR_DFA_WSSIZE;
3123    if (start_offset < 0 || start_offset > length) return PCRE_ERROR_BADOFFSET;
3124    
3125    /* Check that the first field in the block is the magic number. If it is not,
3126    return with PCRE_ERROR_BADMAGIC. However, if the magic number is equal to
3127    REVERSED_MAGIC_NUMBER we return with PCRE_ERROR_BADENDIANNESS, which
3128    means that the pattern is likely compiled with different endianness. */
3129    
3130    if (re->magic_number != MAGIC_NUMBER)
3131      return re->magic_number == REVERSED_MAGIC_NUMBER?
3132        PCRE_ERROR_BADENDIANNESS:PCRE_ERROR_BADMAGIC;
3133    if ((re->flags & PCRE_MODE) == 0) return PCRE_ERROR_BADMODE;
3134    
3135    /* If restarting after a partial match, do some sanity checks on the contents
3136    of the workspace. */
3137    
3138    if ((options & PCRE_DFA_RESTART) != 0)
3139      {
3140      if ((workspace[0] & (-2)) != 0 || workspace[1] < 1 ||
3141        workspace[1] > (wscount - 2)/INTS_PER_STATEBLOCK)
3142          return PCRE_ERROR_DFA_BADRESTART;
3143      }
3144    
3145  /* We need to find the pointer to any study data before we test for byte  /* Set up study, callout, and table data */
 flipping, so we scan the extra_data block first. This may set two fields in the  
 match block, so we must initialize them beforehand. However, the other fields  
 in the match block must not be set until after the byte flipping. */  
3146    
3147  md->tables = re->tables;  md->tables = re->tables;
3148  md->callout_data = NULL;  md->callout_data = NULL;
# Line 2136  if (extra_data != NULL) Line 3161  if (extra_data != NULL)
3161      md->tables = extra_data->tables;      md->tables = extra_data->tables;
3162    }    }
3163    
 /* Check that the first field in the block is the magic number. If it is not,  
 test for a regex that was compiled on a host of opposite endianness. If this is  
 the case, flipped values are put in internal_re and internal_study if there was  
 study data too. */  
   
 if (re->magic_number != MAGIC_NUMBER)  
   {  
   re = _pcre_try_flipped(re, &internal_re, study, &internal_study);  
   if (re == NULL) return PCRE_ERROR_BADMAGIC;  
   if (study != NULL) study = &internal_study;  
   }  
   
3164  /* Set some local values */  /* Set some local values */
3165    
3166  current_subject = (const unsigned char *)subject + start_offset;  current_subject = (const pcre_uchar *)subject + start_offset;
3167  end_subject = (const unsigned char *)subject + length;  end_subject = (const pcre_uchar *)subject + length;
3168  req_byte_ptr = current_subject - 1;  req_char_ptr = current_subject - 1;
3169    
3170  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
3171  utf8 = (re->options & PCRE_UTF8) != 0;  /* PCRE_UTF(16|32) have the same value as PCRE_UTF8. */
3172    utf = (re->options & PCRE_UTF8) != 0;
3173  #else  #else
3174  utf8 = FALSE;  utf = FALSE;
3175  #endif  #endif
3176    
3177  anchored = (options & (PCRE_ANCHORED|PCRE_DFA_RESTART)) != 0 ||  anchored = (options & (PCRE_ANCHORED|PCRE_DFA_RESTART)) != 0 ||
# Line 2165  anchored = (options & (PCRE_ANCHORED|PCR Line 3179  anchored = (options & (PCRE_ANCHORED|PCR
3179    
3180  /* The remaining fixed data for passing around. */  /* The remaining fixed data for passing around. */
3181    
3182  md->start_code = (const uschar *)argument_re +  md->start_code = (const pcre_uchar *)argument_re +
3183      re->name_table_offset + re->name_count * re->name_entry_size;      re->name_table_offset + re->name_count * re->name_entry_size;
3184  md->start_subject = (const unsigned char *)subject;  md->start_subject = (const pcre_uchar *)subject;
3185  md->end_subject = end_subject;  md->end_subject = end_subject;
3186    md->start_offset = start_offset;
3187  md->moptions = options;  md->moptions = options;
3188  md->poptions = re->options;  md->poptions = re->options;
3189    
3190    /* If the BSR option is not set at match time, copy what was set
3191    at compile time. */
3192    
3193    if ((md->moptions & (PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE)) == 0)
3194      {
3195      if ((re->options & (PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE)) != 0)
3196        md->moptions |= re->options & (PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE);
3197    #ifdef BSR_ANYCRLF
3198      else md->moptions |= PCRE_BSR_ANYCRLF;
3199    #endif
3200      }
3201    
3202  /* Handle different types of newline. The three bits give eight cases. If  /* Handle different types of newline. The three bits give eight cases. If
3203  nothing is set at run time, whatever was used at compile time applies. */  nothing is set at run time, whatever was used at compile time applies. */
3204    
# Line 2179  switch ((((options & PCRE_NEWLINE_BITS) Line 3206  switch ((((options & PCRE_NEWLINE_BITS)
3206           PCRE_NEWLINE_BITS)           PCRE_NEWLINE_BITS)
3207    {    {
3208    case 0: newline = NEWLINE; break;   /* Compile-time default */    case 0: newline = NEWLINE; break;   /* Compile-time default */
3209    case PCRE_NEWLINE_CR: newline = '\r'; break;    case PCRE_NEWLINE_CR: newline = CHAR_CR; break;
3210    case PCRE_NEWLINE_LF: newline = '\n'; break;    case PCRE_NEWLINE_LF: newline = CHAR_NL; break;
3211    case PCRE_NEWLINE_CR+    case PCRE_NEWLINE_CR+
3212         PCRE_NEWLINE_LF: newline = ('\r' << 8) | '\n'; break;         PCRE_NEWLINE_LF: newline = (CHAR_CR << 8) | CHAR_NL; break;
3213    case PCRE_NEWLINE_ANY: newline = -1; break;    case PCRE_NEWLINE_ANY: newline = -1; break;
3214    case PCRE_NEWLINE_ANYCRLF: newline = -2; break;    case PCRE_NEWLINE_ANYCRLF: newline = -2; break;
3215    default: return PCRE_ERROR_BADNEWLINE;    default: return PCRE_ERROR_BADNEWLINE;
# Line 2215  else Line 3242  else
3242  /* Check a UTF-8 string if required. Unfortunately there's no way of passing  /* Check a UTF-8 string if required. Unfortunately there's no way of passing
3243  back the character offset. */  back the character offset. */
3244    
3245  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF
3246  if (utf8 && (options & PCRE_NO_UTF8_CHECK) == 0)  if (utf && (options & PCRE_NO_UTF8_CHECK) == 0)
3247    {    {
3248    if (_pcre_valid_utf8((uschar *)subject, length) >= 0)    int erroroffset;
3249      return PCRE_ERROR_BADUTF8;    int errorcode = PRIV(valid_utf)((pcre_uchar *)subject, length, &erroroffset);
3250    if (start_offset > 0 && start_offset < length)    if (errorcode != 0)
3251      {      {
3252      int tb = ((uschar *)subject)[start_offset];      if (offsetcount >= 2)
     if (tb > 127)  
3253        {        {
3254        tb &= 0xc0;        offsets[0] = erroroffset;
3255        if (tb != 0 && tb != 0xc0) return PCRE_ERROR_BADUTF8_OFFSET;        offsets[1] = errorcode;
3256        }        }
3257    #if defined COMPILE_PCRE8
3258        return (errorcode <= PCRE_UTF8_ERR5 && (options & PCRE_PARTIAL_HARD) != 0) ?
3259          PCRE_ERROR_SHORTUTF8 : PCRE_ERROR_BADUTF8;
3260    #elif defined COMPILE_PCRE16
3261        return (errorcode <= PCRE_UTF16_ERR1 && (options & PCRE_PARTIAL_HARD) != 0) ?
3262          PCRE_ERROR_SHORTUTF16 : PCRE_ERROR_BADUTF16;
3263    #elif defined COMPILE_PCRE32
3264        return PCRE_ERROR_BADUTF32;
3265    #endif
3266      }      }
3267    #if defined COMPILE_PCRE8 || defined COMPILE_PCRE16
3268      if (start_offset > 0 && start_offset < length &&
3269            NOT_FIRSTCHAR(((PCRE_PUCHAR)subject)[start_offset]))
3270        return PCRE_ERROR_BADUTF8_OFFSET;
3271    #endif
3272    }    }
3273  #endif  #endif
3274    
# Line 2236  if (utf8 && (options & PCRE_NO_UTF8_CHEC Line 3276  if (utf8 && (options & PCRE_NO_UTF8_CHEC
3276  is a feature that makes it possible to save compiled regex and re-use them  is a feature that makes it possible to save compiled regex and re-use them
3277  in other programs later. */  in other programs later. */
3278    
3279  if (md->tables == NULL) md->tables = _pcre_default_tables;  if (md->tables == NULL) md->tables = PRIV(default_tables);
3280    
3281  /* The lower casing table and the "must be at the start of a line" flag are  /* The "must be at the start of a line" flags are used in a loop when finding
3282  used in a loop when finding where to start. */  where to start. */
3283    
3284  lcc = md->tables + lcc_offset;  startline = (re->flags & PCRE_STARTLINE) != 0;
 startline = (re->options & PCRE_STARTLINE) != 0;  
3285  firstline = (re->options & PCRE_FIRSTLINE) != 0;  firstline = (re->options & PCRE_FIRSTLINE) != 0;
3286    
3287  /* Set up the first character to match, if available. The first_byte value is  /* Set up the first character to match, if available. The first_byte value is
# Line 2253  studied, there may be a bitmap of possib Line 3292  studied, there may be a bitmap of possib
3292    
3293  if (!anchored)  if (!anchored)
3294    {    {
3295    if ((re->options & PCRE_FIRSTSET) != 0)    if ((re->flags & PCRE_FIRSTSET) != 0)
3296      {      {
3297      first_byte = re->first_byte & 255;      has_first_char = TRUE;
3298      if ((first_byte_caseless = ((re->first_byte & REQ_CASELESS) != 0)) == TRUE)      first_char = first_char2 = (pcre_uchar)(re->first_char);
3299        first_byte = lcc[first_byte];      if ((re->flags & PCRE_FCH_CASELESS) != 0)
3300          {
3301          first_char2 = TABLE_GET(first_char, md->tables + fcc_offset, first_char);
3302    #if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
3303          if (utf && first_char > 127)
3304            first_char2 = UCD_OTHERCASE(first_char);
3305    #endif
3306          }
3307      }      }
3308    else    else
3309      {      {
3310      if (startline && study != NULL &&      if (!startline && study != NULL &&
3311           (study->options & PCRE_STUDY_MAPPED) != 0)           (study->flags & PCRE_STUDY_MAPPED) != 0)
3312        start_bits = study->start_bits;        start_bits = study->start_bits;
3313      }      }
3314    }    }
# Line 2270  if (!anchored) Line 3316  if (!anchored)
3316  /* For anchored or unanchored matches, there may be a "last known required  /* For anchored or unanchored matches, there may be a "last known required
3317  character" set. */  character" set. */
3318    
3319  if ((re->options & PCRE_REQCHSET) != 0)  if ((re->flags & PCRE_REQCHSET) != 0)
3320    {    {
3321    req_byte = re->req_byte & 255;    has_req_char = TRUE;
3322    req_byte_caseless = (re->req_byte & REQ_CASELESS) != 0;    req_char = req_char2 = (pcre_uchar)(re->req_char);
3323    req_byte2 = (md->tables + fcc_offset)[req_byte];  /* case flipped */    if ((re->flags & PCRE_RCH_CASELESS) != 0)
3324        {
3325        req_char2 = TABLE_GET(req_char, md->tables + fcc_offset, req_char);
3326    #if defined SUPPORT_UCP && !(defined COMPILE_PCRE8)
3327        if (utf && req_char > 127)
3328          req_char2 = UCD_OTHERCASE(req_char);
3329    #endif
3330        }
3331    }    }
3332    
3333  /* Call the main matching function, looping for a non-anchored regex after a  /* Call the main matching function, looping for a non-anchored regex after a
3334  failed match. Unless restarting, optimize by moving to the first match  failed match. If not restarting, perform certain optimizations at the start of
3335  character if possible, when not anchored. Then unless wanting a partial match,  a match. */
 check for a required later character. */  
3336    
3337  for (;;)  for (;;)
3338    {    {
# Line 2288  for (;;) Line 3340  for (;;)
3340    
3341    if ((options & PCRE_DFA_RESTART) == 0)    if ((options & PCRE_DFA_RESTART) == 0)
3342      {      {
3343      const uschar *save_end_subject = end_subject;      const pcre_uchar *save_end_subject = end_subject;
3344    
3345      /* Advance to a unique first char if possible. If firstline is TRUE, the      /* If firstline is TRUE, the start of the match is constrained to the first
3346      start of the match is constrained to the first line of a multiline string.      line of a multiline string. Implement this by temporarily adjusting
3347      Implement this by temporarily adjusting end_subject so that we stop      end_subject so that we stop scanning at a newline. If the match fails at
3348      scanning at a newline. If the match fails at the newline, later code breaks      the newline, later code breaks this loop. */
     this loop. */  
3349    
3350      if (firstline)      if (firstline)
3351        {        {
3352        const uschar *t = current_subject;        PCRE_PUCHAR t = current_subject;
3353    #ifdef SUPPORT_UTF
3354          if (utf)
3355            {
3356            while (t < md->end_subject && !IS_NEWLINE(t))
3357              {
3358              t++;
3359              ACROSSCHAR(t < end_subject, *t, t++);
3360              }
3361            }
3362          else
3363    #endif
3364        while (t < md->end_subject && !IS_NEWLINE(t)) t++;        while (t < md->end_subject && !IS_NEWLINE(t)) t++;
3365        end_subject = t;        end_subject = t;
3366        }        }
3367    
3368      if (first_byte >= 0)      /* There are some optimizations that avoid running the match if a known
3369        starting point is not found. However, there is an option that disables
3370        these, for testing and for ensuring that all callouts do actually occur.
3371        The option can be set in the regex by (*NO_START_OPT) or passed in
3372        match-time options. */
3373    
3374        if (((options | re->options) & PCRE_NO_START_OPTIMIZE) == 0)
3375        {        {
3376        if (first_byte_caseless)        /* Advance to a known first char. */
3377          while (current_subject < end_subject &&  
3378                 lcc[*current_subject] != first_byte)        if (has_first_char)
3379            current_subject++;          {
3380        else          if (first_char != first_char2)
3381          while (current_subject < end_subject && *current_subject != first_byte)            while (current_subject < end_subject &&
3382            current_subject++;                *current_subject != first_char && *current_subject != first_char2)
3383        }              current_subject++;
3384            else
3385              while (current_subject < end_subject &&
3386                     *current_subject != first_char)
3387                current_subject++;
3388            }
3389    
3390      /* Or to just after a linebreak for a multiline match if possible */        /* Or to just after a linebreak for a multiline match if possible */
3391    
3392      else if (startline)        else if (startline)
       {  
       if (current_subject > md->start_subject + start_offset)  
3393          {          {
3394          while (current_subject <= end_subject && !WAS_NEWLINE(current_subject))          if (current_subject > md->start_subject + start_offset)
3395            current_subject++;            {
3396    #ifdef SUPPORT_UTF
3397              if (utf)
3398                {
3399                while (current_subject < end_subject &&
3400                       !WAS_NEWLINE(current_subject))
3401                  {
3402                  current_subject++;
3403                  ACROSSCHAR(current_subject < end_subject, *current_subject,
3404                    current_subject++);
3405                  }
3406                }
3407              else
3408    #endif
3409              while (current_subject < end_subject && !WAS_NEWLINE(current_subject))
3410                current_subject++;
3411    
3412              /* If we have just passed a CR and the newline option is ANY or
3413              ANYCRLF, and we are now at a LF, advance the match position by one
3414              more character. */
3415    
3416          /* If we have just passed a CR and the newline option is ANY or            if (current_subject[-1] == CHAR_CR &&
3417          ANYCRLF, and we are now at a LF, advance the match position by one more                 (md->nltype == NLTYPE_ANY || md->nltype == NLTYPE_ANYCRLF) &&
3418          character. */                 current_subject < end_subject &&
3419                   *current_subject == CHAR_NL)
3420          if (current_subject[-1] == '\r' &&              current_subject++;
3421               (md->nltype == NLTYPE_ANY || md->nltype == NLTYPE_ANYCRLF) &&            }
              current_subject < end_subject &&  
              *current_subject == '\n')  
           current_subject++;  
3422          }          }
       }  
3423    
3424      /* Or to a non-unique first char after study */        /* Or to a non-unique first char after study */
3425    
3426      else if (start_bits != NULL)        else if (start_bits != NULL)
       {  
       while (current_subject < end_subject)  
3427          {          {
3428          register unsigned int c = *current_subject;          while (current_subject < end_subject)
3429          if ((start_bits[c/8] & (1 << (c&7))) == 0) current_subject++;            {
3430              register unsigned int c = *current_subject;
3431    #ifndef COMPILE_PCRE8
3432              if (c > 255) c = 255;
3433    #endif
3434              if ((start_bits[c/8] & (1 << (c&7))) == 0)
3435                {
3436                current_subject++;
3437    #if defined SUPPORT_UTF && defined COMPILE_PCRE8
3438                /* In non 8-bit mode, the iteration will stop for
3439                characters > 255 at the beginning or not stop at all. */
3440                if (utf)
3441                  ACROSSCHAR(current_subject < end_subject, *current_subject,
3442                    current_subject++);
3443    #endif
3444                }
3445            else break;            else break;
3446              }
3447          }          }
3448        }        }
3449    
3450      /* Restore fudged end_subject */      /* Restore fudged end_subject */
3451    
3452      end_subject = save_end_subject;      end_subject = save_end_subject;
     }  
   
   /* If req_byte is set, we know that that character must appear in the subject  
   for the match to succeed. If the first character is set, req_byte must be  
   later in the subject; otherwise the test starts at the match point. This  
   optimization can save a huge amount of work in patterns with nested unlimited  
   repeats that aren't going to match. Writing separate code for cased/caseless  
   versions makes it go faster, as does using an autoincrement and backing off  
   on a match.  
   
   HOWEVER: when the subject string is very, very long, searching to its end can  
   take a long time, and give bad performance on quite ordinary patterns. This  
   showed up when somebody was matching /^C/ on a 32-megabyte string... so we  
   don't do this when the string is sufficiently long.  
   
   ALSO: this processing is disabled when partial matching is requested.  
   */  
   
   if (req_byte >= 0 &&  
       end_subject - current_subject < REQ_BYTE_MAX &&  
       (options & PCRE_PARTIAL) == 0)  
     {  
     register const uschar *p = current_subject + ((first_byte >= 0)? 1 : 0);  
3453    
3454      /* We don't need to repeat the search if we haven't yet reached the      /* The following two optimizations are disabled for partial matching or if
3455      place we found it at last time. */      disabling is explicitly requested (and of course, by the test above, this
3456        code is not obeyed when restarting after a partial match). */
3457    
3458      if (p > req_byte_ptr)      if (((options | re->options) & PCRE_NO_START_OPTIMIZE) == 0 &&
3459            (options & (PCRE_PARTIAL_HARD|PCRE_PARTIAL_SOFT)) == 0)
3460        {        {
3461        if (req_byte_caseless)        /* If the pattern was studied, a minimum subject length may be set. This
3462          {        is a lower bound; no actual string of that length may actually match the
3463          while (p < end_subject)        pattern. Although the value is, strictly, in characters, we treat it as
3464            {        bytes to avoid spending too much time in this optimization. */
3465            register int pp = *p++;  
3466            if (pp == req_byte || pp == req_byte2) { p--; break; }        if (study != NULL && (study->flags & PCRE_STUDY_MINLEN) != 0 &&
3467            }            (pcre_uint32)(end_subject - current_subject) < study->minlength)
3468          }          return PCRE_ERROR_NOMATCH;
3469        else  
3470          /* If req_char is set, we know that that character must appear in the
3471          subject for the match to succeed. If the first character is set, req_char
3472          must be later in the subject; otherwise the test starts at the match
3473          point. This optimization can save a huge amount of work in patterns with
3474          nested unlimited repeats that aren't going to match. Writing separate
3475          code for cased/caseless versions makes it go faster, as does using an
3476          autoincrement and backing off on a match.
3477    
3478          HOWEVER: when the subject string is very, very long, searching to its end
3479          can take a long time, and give bad performance on quite ordinary
3480          patterns. This showed up when somebody was matching /^C/ on a 32-megabyte
3481          string... so we don't do this when the string is sufficiently long. */
3482    
3483          if (has_req_char && end_subject - current_subject < REQ_BYTE_MAX)
3484          {          {
3485          while (p < end_subject)          register PCRE_PUCHAR p = current_subject + (has_first_char? 1:0);
3486    
3487            /* We don't need to repeat the search if we haven't yet reached the
3488            place we found it at last time. */
3489    
3490            if (p > req_char_ptr)
3491            {            {
3492            if (*p++ == req_byte) { p--; break; }            if (req_char != req_char2)
3493            }              {
3494          }              while (p < end_subject)
3495                  {
3496                  register int pp = *p++;
3497                  if (pp == req_char || pp == req_char2) { p--; break; }
3498                  }
3499                }
3500              else
3501                {
3502                while (p < end_subject)
3503                  {
3504                  if (*p++ == req_char) { p--; break; }
3505                  }
3506                }
3507    
3508        /* If we can't find the required character, break the matching loop,            /* If we can't find the required character, break the matching loop,
3509        which will cause a return or PCRE_ERROR_NOMATCH. */            which will cause a return or PCRE_ERROR_NOMATCH. */
3510    
3511        if (p >= end_subject) break;            if (p >= end_subject) break;
3512    
3513        /* If we have found the required character, save the point where we            /* If we have found the required character, save the point where we
3514        found it, so that we don't search again next time round the loop if            found it, so that we don't search again next time round the loop if
3515        the start hasn't passed this character yet. */            the start hasn't passed this character yet. */
3516    
3517        req_byte_ptr = p;            req_char_ptr = p;
3518              }
3519            }
3520        }        }
3521      }      }   /* End of optimizations that are done when not restarting */
3522    
3523    /* OK, now we can do the business */    /* OK, now we can do the business */
3524    
3525      md->start_used_ptr = current_subject;
3526      md->recursive = NULL;
3527    
3528    rc = internal_dfa_exec(    rc = internal_dfa_exec(
3529      md,                                /* fixed match data */      md,                                /* fixed match data */
3530      md->start_code,                    /* this subexpression's code */      md->start_code,                    /* this subexpression's code */
# Line 2419  for (;;) Line 3534  for (;;)
3534      offsetcount,                       /* size of same */      offsetcount,                       /* size of same */
3535      workspace,                         /* workspace vector */      workspace,                         /* workspace vector */
3536      wscount,                           /* size of same */      wscount,                           /* size of same */
3537      re->options & (PCRE_CASELESS|PCRE_MULTILINE|PCRE_DOTALL), /* ims flags */      0);                                /* function recurse level */
     0,                                 /* function recurse level */  
     0);                                /* regex recurse level */  
3538    
3539    /* Anything other than "no match" means we are done, always; otherwise, carry    /* Anything other than "no match" means we are done, always; otherwise, carry
3540    on only if not anchored. */    on only if not anchored. */
# Line 2433  for (;;) Line 3546  for (;;)
3546    
3547    if (firstline && IS_NEWLINE(current_subject)) break;    if (firstline && IS_NEWLINE(current_subject)) break;
3548    current_subject++;    current_subject++;
3549    if (utf8)  #ifdef SUPPORT_UTF
3550      if (utf)
3551      {      {
3552      while (current_subject < end_subject && (*current_subject & 0xc0) == 0x80)      ACROSSCHAR(current_subject < end_subject, *current_subject,
3553        current_subject++;        current_subject++);
3554      }      }
3555    #endif
3556    if (current_subject > end_subject) break;    if (current_subject > end_subject) break;
3557    
3558    /* If we have just passed a CR and the newline option is CRLF or ANY or    /* If we have just passed a CR and we are now at a LF, and the pattern does
3559    ANYCRLF, and we are now at a LF, advance the match position by one more    not contain any explicit matches for \r or \n, and the newline option is CRLF
3560    character. */    or ANY or ANYCRLF, advance the match position by one more character. */
3561    
3562    if (current_subject[-1] == '\r' &&    if (current_subject[-1] == CHAR_CR &&
3563         (md->nltype == NLTYPE_ANY ||        current_subject < end_subject &&
3564          md->nltype == NLTYPE_ANYCRLF ||        *current_subject == CHAR_NL &&
3565          md->nllen == 2) &&        (re->flags & PCRE_HASCRORLF) == 0 &&
3566         current_subject < end_subject &&          (md->nltype == NLTYPE_ANY ||
3567         *current_subject == '\n')           md->nltype == NLTYPE_ANYCRLF ||
3568             md->nllen == 2))
3569      current_subject++;      current_subject++;
3570    
3571    }   /* "Bumpalong" loop */    }   /* "Bumpalong" loop */

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