/[pcre]/code/trunk/pcre.h.in
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revision 765 by ph10, Wed Nov 23 17:45:04 2011 UTC revision 914 by zherczeg, Mon Feb 13 06:04:50 2012 UTC
# Line 5  Line 5 
5  /* This is the public header file for the PCRE library, to be #included by  /* This is the public header file for the PCRE library, to be #included by
6  applications that call the PCRE functions.  applications that call the PCRE functions.
7    
8             Copyright (c) 1997-2011 University of Cambridge             Copyright (c) 1997-2012 University of Cambridge
9    
10  -----------------------------------------------------------------------------  -----------------------------------------------------------------------------
11  Redistribution and use in source and binary forms, with or without  Redistribution and use in source and binary forms, with or without
# Line 98  extern "C" { Line 98  extern "C" {
98  /* Options. Some are compile-time only, some are run-time only, and some are  /* Options. Some are compile-time only, some are run-time only, and some are
99  both, so we keep them all distinct. However, almost all the bits in the options  both, so we keep them all distinct. However, almost all the bits in the options
100  word are now used. In the long run, we may have to re-use some of the  word are now used. In the long run, we may have to re-use some of the
101  compile-time only bits for runtime options, or vice versa. In the comments  compile-time only bits for runtime options, or vice versa. In the comments
102  below, "compile", "exec", and "DFA exec" mean that the option is permitted to  below, "compile", "exec", and "DFA exec" mean that the option is permitted to
103  be set for those functions; "used in" means that an option may be set only for  be set for those functions; "used in" means that an option may be set only for
104  compile, but is subsequently referenced in exec and/or DFA exec. Any of the  compile, but is subsequently referenced in exec and/or DFA exec. Any of the
105  compile-time options may be inspected during studying (and therefore JIT  compile-time options may be inspected during studying (and therefore JIT
106  compiling). */  compiling). */
# Line 116  compiling). */ Line 116  compiling). */
116  #define PCRE_NOTEOL             0x00000100  /* Exec, DFA exec */  #define PCRE_NOTEOL             0x00000100  /* Exec, DFA exec */
117  #define PCRE_UNGREEDY           0x00000200  /* Compile */  #define PCRE_UNGREEDY           0x00000200  /* Compile */
118  #define PCRE_NOTEMPTY           0x00000400  /* Exec, DFA exec */  #define PCRE_NOTEMPTY           0x00000400  /* Exec, DFA exec */
119  #define PCRE_UTF8               0x00000800  /* Compile, used in exec, DFA exec */  /* The next two are also used in exec and DFA exec */
120    #define PCRE_UTF8               0x00000800  /* Compile (same as PCRE_UTF16) */
121    #define PCRE_UTF16              0x00000800  /* Compile (same as PCRE_UTF8) */
122  #define PCRE_NO_AUTO_CAPTURE    0x00001000  /* Compile */  #define PCRE_NO_AUTO_CAPTURE    0x00001000  /* Compile */
123  #define PCRE_NO_UTF8_CHECK      0x00002000  /* Compile, exec, DFA exec */  /* The next two are also used in exec and DFA exec */
124    #define PCRE_NO_UTF8_CHECK      0x00002000  /* Compile (same as PCRE_NO_UTF16_CHECK) */
125    #define PCRE_NO_UTF16_CHECK     0x00002000  /* Compile (same as PCRE_NO_UTF8_CHECK) */
126  #define PCRE_AUTO_CALLOUT       0x00004000  /* Compile */  #define PCRE_AUTO_CALLOUT       0x00004000  /* Compile */
127  #define PCRE_PARTIAL_SOFT       0x00008000  /* Exec, DFA exec */  #define PCRE_PARTIAL_SOFT       0x00008000  /* Exec, DFA exec */
128  #define PCRE_PARTIAL            0x00008000  /* Backwards compatible synonym */  #define PCRE_PARTIAL            0x00008000  /* Backwards compatible synonym */
# Line 142  compiling). */ Line 146  compiling). */
146    
147  /* Exec-time and get/set-time error codes */  /* Exec-time and get/set-time error codes */
148    
149  #define PCRE_ERROR_NOMATCH         (-1)  #define PCRE_ERROR_NOMATCH          (-1)
150  #define PCRE_ERROR_NULL            (-2)  #define PCRE_ERROR_NULL             (-2)
151  #define PCRE_ERROR_BADOPTION       (-3)  #define PCRE_ERROR_BADOPTION        (-3)
152  #define PCRE_ERROR_BADMAGIC        (-4)  #define PCRE_ERROR_BADMAGIC         (-4)
153  #define PCRE_ERROR_UNKNOWN_OPCODE  (-5)  #define PCRE_ERROR_UNKNOWN_OPCODE   (-5)
154  #define PCRE_ERROR_UNKNOWN_NODE    (-5)  /* For backward compatibility */  #define PCRE_ERROR_UNKNOWN_NODE     (-5)  /* For backward compatibility */
155  #define PCRE_ERROR_NOMEMORY        (-6)  #define PCRE_ERROR_NOMEMORY         (-6)
156  #define PCRE_ERROR_NOSUBSTRING     (-7)  #define PCRE_ERROR_NOSUBSTRING      (-7)
157  #define PCRE_ERROR_MATCHLIMIT      (-8)  #define PCRE_ERROR_MATCHLIMIT       (-8)
158  #define PCRE_ERROR_CALLOUT         (-9)  /* Never used by PCRE itself */  #define PCRE_ERROR_CALLOUT          (-9)  /* Never used by PCRE itself */
159  #define PCRE_ERROR_BADUTF8        (-10)  #define PCRE_ERROR_BADUTF8         (-10)  /* Same for 8/16 */
160  #define PCRE_ERROR_BADUTF8_OFFSET (-11)  #define PCRE_ERROR_BADUTF16        (-10)  /* Same for 8/16 */
161  #define PCRE_ERROR_PARTIAL        (-12)  #define PCRE_ERROR_BADUTF8_OFFSET  (-11)  /* Same for 8/16 */
162  #define PCRE_ERROR_BADPARTIAL     (-13)  #define PCRE_ERROR_BADUTF16_OFFSET (-11)  /* Same for 8/16 */
163  #define PCRE_ERROR_INTERNAL       (-14)  #define PCRE_ERROR_PARTIAL         (-12)
164  #define PCRE_ERROR_BADCOUNT       (-15)  #define PCRE_ERROR_BADPARTIAL      (-13)
165  #define PCRE_ERROR_DFA_UITEM      (-16)  #define PCRE_ERROR_INTERNAL        (-14)
166  #define PCRE_ERROR_DFA_UCOND      (-17)  #define PCRE_ERROR_BADCOUNT        (-15)
167  #define PCRE_ERROR_DFA_UMLIMIT    (-18)  #define PCRE_ERROR_DFA_UITEM       (-16)
168  #define PCRE_ERROR_DFA_WSSIZE     (-19)  #define PCRE_ERROR_DFA_UCOND       (-17)
169  #define PCRE_ERROR_DFA_RECURSE    (-20)  #define PCRE_ERROR_DFA_UMLIMIT     (-18)
170  #define PCRE_ERROR_RECURSIONLIMIT (-21)  #define PCRE_ERROR_DFA_WSSIZE      (-19)
171  #define PCRE_ERROR_NULLWSLIMIT    (-22)  /* No longer actually used */  #define PCRE_ERROR_DFA_RECURSE     (-20)
172  #define PCRE_ERROR_BADNEWLINE     (-23)  #define PCRE_ERROR_RECURSIONLIMIT  (-21)
173  #define PCRE_ERROR_BADOFFSET      (-24)  #define PCRE_ERROR_NULLWSLIMIT     (-22)  /* No longer actually used */
174  #define PCRE_ERROR_SHORTUTF8      (-25)  #define PCRE_ERROR_BADNEWLINE      (-23)
175  #define PCRE_ERROR_RECURSELOOP    (-26)  #define PCRE_ERROR_BADOFFSET       (-24)
176  #define PCRE_ERROR_JIT_STACKLIMIT (-27)  #define PCRE_ERROR_SHORTUTF8       (-25)
177    #define PCRE_ERROR_SHORTUTF16      (-25)  /* Same for 8/16 */
178    #define PCRE_ERROR_RECURSELOOP     (-26)
179    #define PCRE_ERROR_JIT_STACKLIMIT  (-27)
180    #define PCRE_ERROR_BADMODE         (-28)
181    #define PCRE_ERROR_BADENDIANNESS   (-29)
182    
183  /* Specific error codes for UTF-8 validity checks */  /* Specific error codes for UTF-8 validity checks */
184    
# Line 196  compiling). */ Line 205  compiling). */
205  #define PCRE_UTF8_ERR20             20  #define PCRE_UTF8_ERR20             20
206  #define PCRE_UTF8_ERR21             21  #define PCRE_UTF8_ERR21             21
207    
208    /* Specific error codes for UTF-16 validity checks */
209    
210    #define PCRE_UTF16_ERR0              0
211    #define PCRE_UTF16_ERR1              1
212    #define PCRE_UTF16_ERR2              2
213    #define PCRE_UTF16_ERR3              3
214    #define PCRE_UTF16_ERR4              4
215    
216  /* Request types for pcre_fullinfo() */  /* Request types for pcre_fullinfo() */
217    
218  #define PCRE_INFO_OPTIONS            0  #define PCRE_INFO_OPTIONS            0
# Line 216  compiling). */ Line 233  compiling). */
233  #define PCRE_INFO_HASCRORLF         14  #define PCRE_INFO_HASCRORLF         14
234  #define PCRE_INFO_MINLENGTH         15  #define PCRE_INFO_MINLENGTH         15
235  #define PCRE_INFO_JIT               16  #define PCRE_INFO_JIT               16
236    #define PCRE_INFO_JITSIZE           17
237    
238  /* Request types for pcre_config(). Do not re-arrange, in order to remain  /* Request types for pcre_config(). Do not re-arrange, in order to remain
239  compatible. */  compatible. */
# Line 230  compatible. */ Line 248  compatible. */
248  #define PCRE_CONFIG_MATCH_LIMIT_RECURSION   7  #define PCRE_CONFIG_MATCH_LIMIT_RECURSION   7
249  #define PCRE_CONFIG_BSR                     8  #define PCRE_CONFIG_BSR                     8
250  #define PCRE_CONFIG_JIT                     9  #define PCRE_CONFIG_JIT                     9
251    #define PCRE_CONFIG_UTF16                  10
252    #define PCRE_CONFIG_JITTARGET              11
253    
254  /* Request types for pcre_study(). Do not re-arrange, in order to remain  /* Request types for pcre_study(). Do not re-arrange, in order to remain
255  compatible. */  compatible. */
256    
257  #define PCRE_STUDY_JIT_COMPILE            0x0001  #define PCRE_STUDY_JIT_COMPILE                0x0001
258    #define PCRE_STUDY_JIT_PARTIAL_SOFT_COMPILE   0x0002
259    #define PCRE_STUDY_JIT_PARTIAL_HARD_COMPILE   0x0004
260    
261  /* Bit flags for the pcre_extra structure. Do not re-arrange or redefine  /* Bit flags for the pcre[16]_extra structure. Do not re-arrange or redefine
262  these bits, just add new ones on the end, in order to remain compatible. */  these bits, just add new ones on the end, in order to remain compatible. */
263    
264  #define PCRE_EXTRA_STUDY_DATA             0x0001  #define PCRE_EXTRA_STUDY_DATA             0x0001
# Line 252  these bits, just add new ones on the end Line 274  these bits, just add new ones on the end
274  struct real_pcre;                 /* declaration; the definition is private  */  struct real_pcre;                 /* declaration; the definition is private  */
275  typedef struct real_pcre pcre;  typedef struct real_pcre pcre;
276    
277    struct real_pcre16;               /* declaration; the definition is private  */
278    typedef struct real_pcre16 pcre16;
279    
280  struct real_pcre_jit_stack;       /* declaration; the definition is private  */  struct real_pcre_jit_stack;       /* declaration; the definition is private  */
281  typedef struct real_pcre_jit_stack pcre_jit_stack;  typedef struct real_pcre_jit_stack pcre_jit_stack;
282    
283    struct real_pcre16_jit_stack;     /* declaration; the definition is private  */
284    typedef struct real_pcre16_jit_stack pcre16_jit_stack;
285    
286    /* If PCRE is compiled with 16 bit character support, PCRE_UCHAR16 must contain
287    a 16 bit wide signed data type. Otherwise it can be a dummy data type since
288    pcre16 functions are not implemented. There is a check for this in pcre_internal.h. */
289    #ifndef PCRE_UCHAR16
290    #define PCRE_UCHAR16 unsigned short
291    #endif
292    
293    #ifndef PCRE_SPTR16
294    #define PCRE_SPTR16 const PCRE_UCHAR16 *
295    #endif
296    
297  /* When PCRE is compiled as a C++ library, the subject pointer type can be  /* When PCRE is compiled as a C++ library, the subject pointer type can be
298  replaced with a custom type. For conventional use, the public interface is a  replaced with a custom type. For conventional use, the public interface is a
299  const char *. */  const char *. */
# Line 278  typedef struct pcre_extra { Line 317  typedef struct pcre_extra {
317    void *executable_jit;           /* Contains a pointer to a compiled jit code */    void *executable_jit;           /* Contains a pointer to a compiled jit code */
318  } pcre_extra;  } pcre_extra;
319    
320    /* Same structure as above, but with 16 bit char pointers. */
321    
322    typedef struct pcre16_extra {
323      unsigned long int flags;        /* Bits for which fields are set */
324      void *study_data;               /* Opaque data from pcre_study() */
325      unsigned long int match_limit;  /* Maximum number of calls to match() */
326      void *callout_data;             /* Data passed back in callouts */
327      const unsigned char *tables;    /* Pointer to character tables */
328      unsigned long int match_limit_recursion; /* Max recursive calls to match() */
329      PCRE_UCHAR16 **mark;            /* For passing back a mark pointer */
330      void *executable_jit;           /* Contains a pointer to a compiled jit code */
331    } pcre16_extra;
332    
333  /* The structure for passing out data via the pcre_callout_function. We use a  /* The structure for passing out data via the pcre_callout_function. We use a
334  structure so that new fields can be added on the end in future versions,  structure so that new fields can be added on the end in future versions,
335  without changing the API of the function, thereby allowing old clients to work  without changing the API of the function, thereby allowing old clients to work
# Line 303  typedef struct pcre_callout_block { Line 355  typedef struct pcre_callout_block {
355    /* ------------------------------------------------------------------ */    /* ------------------------------------------------------------------ */
356  } pcre_callout_block;  } pcre_callout_block;
357    
358    /* Same structure as above, but with 16 bit char pointers. */
359    
360    typedef struct pcre16_callout_block {
361      int          version;           /* Identifies version of block */
362      /* ------------------------ Version 0 ------------------------------- */
363      int          callout_number;    /* Number compiled into pattern */
364      int         *offset_vector;     /* The offset vector */
365      PCRE_SPTR16  subject;           /* The subject being matched */
366      int          subject_length;    /* The length of the subject */
367      int          start_match;       /* Offset to start of this match attempt */
368      int          current_position;  /* Where we currently are in the subject */
369      int          capture_top;       /* Max current capture */
370      int          capture_last;      /* Most recently closed capture */
371      void        *callout_data;      /* Data passed in with the call */
372      /* ------------------- Added for Version 1 -------------------------- */
373      int          pattern_position;  /* Offset to next item in the pattern */
374      int          next_item_length;  /* Length of next item in the pattern */
375      /* ------------------- Added for Version 2 -------------------------- */
376      const PCRE_UCHAR16 *mark;       /* Pointer to current mark or NULL    */
377      /* ------------------------------------------------------------------ */
378    } pcre16_callout_block;
379    
380  /* Indirection for store get and free functions. These can be set to  /* Indirection for store get and free functions. These can be set to
381  alternative malloc/free functions if required. Special ones are used in the  alternative malloc/free functions if required. Special ones are used in the
382  non-recursive case for "frames". There is also an optional callout function  non-recursive case for "frames". There is also an optional callout function
# Line 315  PCRE_EXP_DECL void  (*pcre_free)(void *) Line 389  PCRE_EXP_DECL void  (*pcre_free)(void *)
389  PCRE_EXP_DECL void *(*pcre_stack_malloc)(size_t);  PCRE_EXP_DECL void *(*pcre_stack_malloc)(size_t);
390  PCRE_EXP_DECL void  (*pcre_stack_free)(void *);  PCRE_EXP_DECL void  (*pcre_stack_free)(void *);
391  PCRE_EXP_DECL int   (*pcre_callout)(pcre_callout_block *);  PCRE_EXP_DECL int   (*pcre_callout)(pcre_callout_block *);
392    
393    PCRE_EXP_DECL void *(*pcre16_malloc)(size_t);
394    PCRE_EXP_DECL void  (*pcre16_free)(void *);
395    PCRE_EXP_DECL void *(*pcre16_stack_malloc)(size_t);
396    PCRE_EXP_DECL void  (*pcre16_stack_free)(void *);
397    PCRE_EXP_DECL int   (*pcre16_callout)(pcre16_callout_block *);
398  #else   /* VPCOMPAT */  #else   /* VPCOMPAT */
399  PCRE_EXP_DECL void *pcre_malloc(size_t);  PCRE_EXP_DECL void *pcre_malloc(size_t);
400  PCRE_EXP_DECL void  pcre_free(void *);  PCRE_EXP_DECL void  pcre_free(void *);
401  PCRE_EXP_DECL void *pcre_stack_malloc(size_t);  PCRE_EXP_DECL void *pcre_stack_malloc(size_t);
402  PCRE_EXP_DECL void  pcre_stack_free(void *);  PCRE_EXP_DECL void  pcre_stack_free(void *);
403  PCRE_EXP_DECL int   pcre_callout(pcre_callout_block *);  PCRE_EXP_DECL int   pcre_callout(pcre_callout_block *);
404    
405    PCRE_EXP_DECL void *pcre16_malloc(size_t);
406    PCRE_EXP_DECL void  pcre16_free(void *);
407    PCRE_EXP_DECL void *pcre16_stack_malloc(size_t);
408    PCRE_EXP_DECL void  pcre16_stack_free(void *);
409    PCRE_EXP_DECL int   pcre16_callout(pcre16_callout_block *);
410  #endif  /* VPCOMPAT */  #endif  /* VPCOMPAT */
411    
412  /* User defined callback which provides a stack just before the match starts. */  /* User defined callback which provides a stack just before the match starts. */
413    
414  typedef pcre_jit_stack *(*pcre_jit_callback)(void *);  typedef pcre_jit_stack *(*pcre_jit_callback)(void *);
415    typedef pcre16_jit_stack *(*pcre16_jit_callback)(void *);
416    
417  /* Exported PCRE functions */  /* Exported PCRE functions */
418    
419  PCRE_EXP_DECL pcre *pcre_compile(const char *, int, const char **, int *,  PCRE_EXP_DECL pcre *pcre_compile(const char *, int, const char **, int *,
420                    const unsigned char *);                    const unsigned char *);
421    PCRE_EXP_DECL pcre16 *pcre16_compile(PCRE_SPTR16, int, const char **, int *,
422                      const unsigned char *);
423  PCRE_EXP_DECL pcre *pcre_compile2(const char *, int, int *, const char **,  PCRE_EXP_DECL pcre *pcre_compile2(const char *, int, int *, const char **,
424                    int *, const unsigned char *);                    int *, const unsigned char *);
425    PCRE_EXP_DECL pcre16 *pcre16_compile2(PCRE_SPTR16, int, int *, const char **,
426                      int *, const unsigned char *);
427  PCRE_EXP_DECL int  pcre_config(int, void *);  PCRE_EXP_DECL int  pcre_config(int, void *);
428    PCRE_EXP_DECL int  pcre16_config(int, void *);
429  PCRE_EXP_DECL int  pcre_copy_named_substring(const pcre *, const char *,  PCRE_EXP_DECL int  pcre_copy_named_substring(const pcre *, const char *,
430                    int *, int, const char *, char *, int);                    int *, int, const char *, char *, int);
431  PCRE_EXP_DECL int  pcre_copy_substring(const char *, int *, int, int, char *,  PCRE_EXP_DECL int  pcre16_copy_named_substring(const pcre16 *, PCRE_SPTR16,
432                    int);                    int *, int, PCRE_SPTR16, PCRE_UCHAR16 *, int);
433    PCRE_EXP_DECL int  pcre_copy_substring(const char *, int *, int, int,
434                      char *, int);
435    PCRE_EXP_DECL int  pcre16_copy_substring(PCRE_SPTR16, int *, int, int,
436                      PCRE_UCHAR16 *, int);
437  PCRE_EXP_DECL int  pcre_dfa_exec(const pcre *, const pcre_extra *,  PCRE_EXP_DECL int  pcre_dfa_exec(const pcre *, const pcre_extra *,
438                    const char *, int, int, int, int *, int , int *, int);                    const char *, int, int, int, int *, int , int *, int);
439    PCRE_EXP_DECL int  pcre16_dfa_exec(const pcre16 *, const pcre16_extra *,
440                      PCRE_SPTR16, int, int, int, int *, int , int *, int);
441  PCRE_EXP_DECL int  pcre_exec(const pcre *, const pcre_extra *, PCRE_SPTR,  PCRE_EXP_DECL int  pcre_exec(const pcre *, const pcre_extra *, PCRE_SPTR,
442                     int, int, int, int *, int);                     int, int, int, int *, int);
443    PCRE_EXP_DECL int  pcre16_exec(const pcre16 *, const pcre16_extra *,
444                       PCRE_SPTR16, int, int, int, int *, int);
445  PCRE_EXP_DECL void pcre_free_substring(const char *);  PCRE_EXP_DECL void pcre_free_substring(const char *);
446    PCRE_EXP_DECL void pcre16_free_substring(PCRE_SPTR16);
447  PCRE_EXP_DECL void pcre_free_substring_list(const char **);  PCRE_EXP_DECL void pcre_free_substring_list(const char **);
448    PCRE_EXP_DECL void pcre16_free_substring_list(PCRE_SPTR16 *);
449  PCRE_EXP_DECL int  pcre_fullinfo(const pcre *, const pcre_extra *, int,  PCRE_EXP_DECL int  pcre_fullinfo(const pcre *, const pcre_extra *, int,
450                    void *);                    void *);
451    PCRE_EXP_DECL int  pcre16_fullinfo(const pcre16 *, const pcre16_extra *, int,
452                      void *);
453  PCRE_EXP_DECL int  pcre_get_named_substring(const pcre *, const char *,  PCRE_EXP_DECL int  pcre_get_named_substring(const pcre *, const char *,
454                    int *, int, const char *, const char **);                    int *, int, const char *, const char **);
455    PCRE_EXP_DECL int  pcre16_get_named_substring(const pcre16 *, PCRE_SPTR16,
456                      int *, int, PCRE_SPTR16, PCRE_SPTR16 *);
457  PCRE_EXP_DECL int  pcre_get_stringnumber(const pcre *, const char *);  PCRE_EXP_DECL int  pcre_get_stringnumber(const pcre *, const char *);
458    PCRE_EXP_DECL int  pcre16_get_stringnumber(const pcre16 *, PCRE_SPTR16);
459  PCRE_EXP_DECL int  pcre_get_stringtable_entries(const pcre *, const char *,  PCRE_EXP_DECL int  pcre_get_stringtable_entries(const pcre *, const char *,
460                    char **, char **);                    char **, char **);
461    PCRE_EXP_DECL int  pcre16_get_stringtable_entries(const pcre16 *, PCRE_SPTR16,
462                      PCRE_UCHAR16 **, PCRE_UCHAR16 **);
463  PCRE_EXP_DECL int  pcre_get_substring(const char *, int *, int, int,  PCRE_EXP_DECL int  pcre_get_substring(const char *, int *, int, int,
464                    const char **);                    const char **);
465    PCRE_EXP_DECL int  pcre16_get_substring(PCRE_SPTR16, int *, int, int,
466                      PCRE_SPTR16 *);
467  PCRE_EXP_DECL int  pcre_get_substring_list(const char *, int *, int,  PCRE_EXP_DECL int  pcre_get_substring_list(const char *, int *, int,
468                    const char ***);                    const char ***);
469  PCRE_EXP_DECL int  pcre_info(const pcre *, int *, int *);  PCRE_EXP_DECL int  pcre16_get_substring_list(PCRE_SPTR16, int *, int,
470                      PCRE_SPTR16 **);
471  PCRE_EXP_DECL const unsigned char *pcre_maketables(void);  PCRE_EXP_DECL const unsigned char *pcre_maketables(void);
472    PCRE_EXP_DECL const unsigned char *pcre16_maketables(void);
473  PCRE_EXP_DECL int  pcre_refcount(pcre *, int);  PCRE_EXP_DECL int  pcre_refcount(pcre *, int);
474    PCRE_EXP_DECL int  pcre16_refcount(pcre16 *, int);
475  PCRE_EXP_DECL pcre_extra *pcre_study(const pcre *, int, const char **);  PCRE_EXP_DECL pcre_extra *pcre_study(const pcre *, int, const char **);
476    PCRE_EXP_DECL pcre16_extra *pcre16_study(const pcre16 *, int, const char **);
477  PCRE_EXP_DECL void pcre_free_study(pcre_extra *);  PCRE_EXP_DECL void pcre_free_study(pcre_extra *);
478    PCRE_EXP_DECL void pcre16_free_study(pcre16_extra *);
479  PCRE_EXP_DECL const char *pcre_version(void);  PCRE_EXP_DECL const char *pcre_version(void);
480    PCRE_EXP_DECL const char *pcre16_version(void);
481    
482    /* Utility functions for byte order swaps. */
483    PCRE_EXP_DECL int  pcre_pattern_to_host_byte_order(pcre *, pcre_extra *,
484                      const unsigned char *);
485    PCRE_EXP_DECL int  pcre16_pattern_to_host_byte_order(pcre16 *, pcre16_extra *,
486                      const unsigned char *);
487    PCRE_EXP_DECL int  pcre16_utf16_to_host_byte_order(PCRE_UCHAR16 *,
488                      PCRE_SPTR16, int, int *, int);
489    
490  /* JIT compiler related functions. */  /* JIT compiler related functions. */
491    
492  PCRE_EXP_DECL pcre_jit_stack *pcre_jit_stack_alloc(int, int);  PCRE_EXP_DECL pcre_jit_stack *pcre_jit_stack_alloc(int, int);
493    PCRE_EXP_DECL pcre16_jit_stack *pcre16_jit_stack_alloc(int, int);
494  PCRE_EXP_DECL void pcre_jit_stack_free(pcre_jit_stack *);  PCRE_EXP_DECL void pcre_jit_stack_free(pcre_jit_stack *);
495  PCRE_EXP_DECL void pcre_assign_jit_stack(pcre_extra *, pcre_jit_callback, void *);  PCRE_EXP_DECL void pcre16_jit_stack_free(pcre16_jit_stack *);
496    PCRE_EXP_DECL void pcre_assign_jit_stack(pcre_extra *,
497                      pcre_jit_callback, void *);
498    PCRE_EXP_DECL void pcre16_assign_jit_stack(pcre16_extra *,
499                      pcre16_jit_callback, void *);
500    
501  #ifdef __cplusplus  #ifdef __cplusplus
502  }  /* extern "C" */  }  /* extern "C" */

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