/[pcre]/code/tags/pcre-4.0/internal.h
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revision 25 by nigel, Sat Feb 24 21:38:45 2007 UTC revision 41 by nigel, Sat Feb 24 21:39:17 2007 UTC
# Line 3  Line 3 
3  *************************************************/  *************************************************/
4    
5    
 #define PCRE_VERSION       "2.01 21-Oct-1998"  
   
   
6  /* This is a library of functions to support regular expressions whose syntax  /* This is a library of functions to support regular expressions whose syntax
7  and semantics are as close as possible to those of the Perl 5 language. See  and semantics are as close as possible to those of the Perl 5 language. See
8  the file Tech.Notes for some information on the internals.  the file Tech.Notes for some information on the internals.
9    
10  Written by: Philip Hazel <ph10@cam.ac.uk>  Written by: Philip Hazel <ph10@cam.ac.uk>
11    
12             Copyright (c) 1998 University of Cambridge             Copyright (c) 1997-1999 University of Cambridge
13    
14  -----------------------------------------------------------------------------  -----------------------------------------------------------------------------
15  Permission is granted to anyone to use this software for any purpose on any  Permission is granted to anyone to use this software for any purpose on any
# Line 28  restrictions: Line 25  restrictions:
25    
26  3. Altered versions must be plainly marked as such, and must not be  3. Altered versions must be plainly marked as such, and must not be
27     misrepresented as being the original software.     misrepresented as being the original software.
28    
29    4. If PCRE is embedded in any software that is released under the GNU
30       General Purpose Licence (GPL), then the terms of that licence shall
31       supersede any condition above with which it is incompatible.
32  -----------------------------------------------------------------------------  -----------------------------------------------------------------------------
33  */  */
34    
35  /* This header contains definitions that are shared between the different  /* This header contains definitions that are shared between the different
36  modules, but which are not relevant to the outside. */  modules, but which are not relevant to the outside. */
37    
38    /* Get the definitions provided by running "configure" */
39    
40    #include "config.h"
41    
42  /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),  /* To cope with SunOS4 and other systems that lack memmove() but have bcopy(),
43  define a macro for memmove() if USE_BCOPY is defined. */  define a macro for memmove() if HAVE_MEMMOVE is not defined. */
44    
45  #ifdef USE_BCOPY  #ifndef HAVE_MEMMOVE
46  #undef  memmove        /* some systems may have a macro */  #undef  memmove        /* some systems may have a macro */
47  #define memmove(a, b, c) bcopy(b, a, c)  #define memmove(a, b, c) bcopy(b, a, c)
48  #endif  #endif
# Line 63  Standard C system should have one. */ Line 68  Standard C system should have one. */
68    
69  #define PCRE_IMS (PCRE_CASELESS|PCRE_MULTILINE|PCRE_DOTALL)  #define PCRE_IMS (PCRE_CASELESS|PCRE_MULTILINE|PCRE_DOTALL)
70    
71  /* Private options flags start at the most significant end of the two bytes.  /* Private options flags start at the most significant end of the four bytes,
72  The public options defined in pcre.h start at the least significant end. Make  but skip the top bit so we can use ints for convenience without getting tangled
73  sure they don't overlap! */  with negative values. The public options defined in pcre.h start at the least
74    significant end. Make sure they don't overlap, though now that we have expanded
75  #define PCRE_FIRSTSET           0x8000  /* first_char is set */  to four bytes there is plenty of space. */
76  #define PCRE_STARTLINE          0x4000  /* start after \n for multiline */  
77  #define PCRE_INGROUP            0x2000  /* compiling inside a group */  #define PCRE_FIRSTSET      0x40000000  /* first_char is set */
78    #define PCRE_REQCHSET      0x20000000  /* req_char is set */
79    #define PCRE_STARTLINE     0x10000000  /* start after \n for multiline */
80    #define PCRE_INGROUP       0x08000000  /* compiling inside a group */
81    #define PCRE_ICHANGED      0x04000000  /* i option changes within regex */
82    
83  /* Options for the "extra" block produced by pcre_study(). */  /* Options for the "extra" block produced by pcre_study(). */
84    
# Line 82  time, run time or study time, respective Line 91  time, run time or study time, respective
91    (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \    (PCRE_CASELESS|PCRE_EXTENDED|PCRE_ANCHORED|PCRE_MULTILINE| \
92     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY)     PCRE_DOTALL|PCRE_DOLLAR_ENDONLY|PCRE_EXTRA|PCRE_UNGREEDY)
93    
94  #define PUBLIC_EXEC_OPTIONS (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL)  #define PUBLIC_EXEC_OPTIONS \
95      (PCRE_ANCHORED|PCRE_NOTBOL|PCRE_NOTEOL|PCRE_NOTEMPTY)
96    
97  #define PUBLIC_STUDY_OPTIONS 0   /* None defined */  #define PUBLIC_STUDY_OPTIONS 0   /* None defined */
98    
99  /* Magic number to provide a small check against being handed junk. */  /* Magic number to provide a small check against being handed junk. */
100    
101  #define MAGIC_NUMBER  0x50435245   /* 'PCRE' */  #define MAGIC_NUMBER  0x50435245UL   /* 'PCRE' */
102    
103  /* Miscellaneous definitions */  /* Miscellaneous definitions */
104    
# Line 258  typedef unsigned char uschar; Line 268  typedef unsigned char uschar;
268  runs on as long as necessary after the end. */  runs on as long as necessary after the end. */
269    
270  typedef struct real_pcre {  typedef struct real_pcre {
271    unsigned int  magic_number;    unsigned long int magic_number;
272    const unsigned char *tables;    const unsigned char *tables;
273    unsigned short int options;    unsigned long int options;
274    unsigned char top_bracket;    uschar top_bracket;
275    unsigned char top_backref;    uschar top_backref;
276    unsigned char first_char;    uschar first_char;
277    unsigned char code[1];    uschar req_char;
278      uschar code[1];
279  } real_pcre;  } real_pcre;
280    
281  /* The real format of the extra block returned by pcre_study(). */  /* The real format of the extra block returned by pcre_study(). */
282    
283  typedef struct real_pcre_extra {  typedef struct real_pcre_extra {
284    unsigned char options;    uschar options;
285    unsigned char start_bits[32];    uschar start_bits[32];
286  } real_pcre_extra;  } real_pcre_extra;
287    
288    
# Line 280  doing the compiling, so that they are th Line 291  doing the compiling, so that they are th
291    
292  typedef struct compile_data {  typedef struct compile_data {
293    const uschar *lcc;            /* Points to lower casing table */    const uschar *lcc;            /* Points to lower casing table */
294    const uschar *fcc;            /* Points to case-flippint table */    const uschar *fcc;            /* Points to case-flipping table */
295    const uschar *cbits;          /* Points to character type table */    const uschar *cbits;          /* Points to character type table */
296    const uschar *ctypes;         /* Points to table of type maps */    const uschar *ctypes;         /* Points to table of type maps */
297  } compile_data;  } compile_data;
# Line 299  typedef struct match_data { Line 310  typedef struct match_data {
310    BOOL   notbol;                /* NOTBOL flag */    BOOL   notbol;                /* NOTBOL flag */
311    BOOL   noteol;                /* NOTEOL flag */    BOOL   noteol;                /* NOTEOL flag */
312    BOOL   endonly;               /* Dollar not before final \n */    BOOL   endonly;               /* Dollar not before final \n */
313      BOOL   notempty;              /* Empty string match not wanted */
314    const uschar *start_subject;  /* Start of the subject string */    const uschar *start_subject;  /* Start of the subject string */
315    const uschar *end_subject;    /* End of the subject string */    const uschar *end_subject;    /* End of the subject string */
316      const uschar *start_match;    /* Start of this match attempt */
317    const uschar *end_match_ptr;  /* Subject position at end match */    const uschar *end_match_ptr;  /* Subject position at end match */
318    int     end_offset_top;       /* Highwater mark at end of match */    int     end_offset_top;       /* Highwater mark at end of match */
319  } match_data;  } match_data;
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