/[pcre]/code/trunk/pcre_internal.h
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revision 351 by ph10, Fri Jul 4 18:27:16 2008 UTC revision 384 by ph10, Sun Mar 8 16:27:43 2009 UTC
# Line 7  Line 7 
7  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.
8    
9                         Written by Philip Hazel                         Written by Philip Hazel
10             Copyright (c) 1997-2008 University of Cambridge             Copyright (c) 1997-2009 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 132  PCRE_EXP_DATA_DEFN only if they are not Line 132  PCRE_EXP_DATA_DEFN only if they are not
132  #  endif  #  endif
133  #endif  #endif
134    
135    /* When compiling with the MSVC compiler, it is sometimes necessary to include
136    a "calling convention" before exported function names. (This is secondhand
137    information; I know nothing about MSVC myself). For example, something like
138    
139      void __cdecl function(....)
140    
141    might be needed. In order so make this easy, all the exported functions have
142    PCRE_CALL_CONVENTION just before their names. It is rarely needed; if not
143    set, we ensure here that it has no effect. */
144    
145    #ifndef PCRE_CALL_CONVENTION
146    #define PCRE_CALL_CONVENTION
147    #endif
148    
149  /* We need to have types that specify unsigned 16-bit and 32-bit integers. We  /* We need to have types that specify unsigned 16-bit and 32-bit integers. We
150  cannot determine these outside the compilation (e.g. by running a program as  cannot determine these outside the compilation (e.g. by running a program as
151  part of "configure") because PCRE is often cross-compiled for use on other  part of "configure") because PCRE is often cross-compiled for use on other
# Line 367  never be called in byte mode. To make su Line 381  never be called in byte mode. To make su
381  support is omitted, we don't even define it. */  support is omitted, we don't even define it. */
382    
383  #ifndef SUPPORT_UTF8  #ifndef SUPPORT_UTF8
 #define NEXTCHAR(p) p++;  
384  #define GETCHAR(c, eptr) c = *eptr;  #define GETCHAR(c, eptr) c = *eptr;
385  #define GETCHARTEST(c, eptr) c = *eptr;  #define GETCHARTEST(c, eptr) c = *eptr;
386  #define GETCHARINC(c, eptr) c = *eptr++;  #define GETCHARINC(c, eptr) c = *eptr++;
# Line 377  support is omitted, we don't even define Line 390  support is omitted, we don't even define
390    
391  #else   /* SUPPORT_UTF8 */  #else   /* SUPPORT_UTF8 */
392    
 /* Advance a character pointer one byte in non-UTF-8 mode and by one character  
 in UTF-8 mode. */  
   
 #define NEXTCHAR(p) \  
   p++; \  
   if (utf8) { while((*p & 0xc0) == 0x80) p++; }  
   
393  /* Get the next UTF-8 character, not advancing the pointer. This is called when  /* Get the next UTF-8 character, not advancing the pointer. This is called when
394  we know we are in UTF-8 mode. */  we know we are in UTF-8 mode. */
395    
# Line 472  if there are extra bytes. This is called Line 478  if there are extra bytes. This is called
478      len += gcaa; \      len += gcaa; \
479      }      }
480    
481    /* Get the next UTF-8 character, testing for UTF-8 mode, not advancing the
482    pointer, incrementing length if there are extra bytes. This is called when we
483    know we are in UTF-8 mode. */
484    
485    #define GETCHARLENTEST(c, eptr, len) \
486      c = *eptr; \
487      if (utf8 && c >= 0xc0) \
488        { \
489        int gcii; \
490        int gcaa = _pcre_utf8_table4[c & 0x3f];  /* Number of additional bytes */ \
491        int gcss = 6*gcaa; \
492        c = (c & _pcre_utf8_table3[gcaa]) << gcss; \
493        for (gcii = 1; gcii <= gcaa; gcii++) \
494          { \
495          gcss -= 6; \
496          c |= (eptr[gcii] & 0x3f) << gcss; \
497          } \
498        len += gcaa; \
499        }
500    
501  /* If the pointer is not at the start of a character, move it back until  /* If the pointer is not at the start of a character, move it back until
502  it is. This is called only in UTF-8 mode - we don't put a test within the macro  it is. This is called only in UTF-8 mode - we don't put a test within the macro
503  because almost all calls are already within a block of UTF-8 only code. */  because almost all calls are already within a block of UTF-8 only code. */
# Line 553  variable-length repeat, or a anything ot Line 579  variable-length repeat, or a anything ot
579  #define REQ_CASELESS 0x0100    /* indicates caselessness */  #define REQ_CASELESS 0x0100    /* indicates caselessness */
580  #define REQ_VARY     0x0200    /* reqbyte followed non-literal item */  #define REQ_VARY     0x0200    /* reqbyte followed non-literal item */
581    
582  /* Miscellaneous definitions */  /* Miscellaneous definitions. The #ifndef is to pacify compiler warnings in
583    environments where these macros are defined elsewhere. Unfortunately, there
584    is no way to do the same for the typedef. */
585    
586  typedef int BOOL;  typedef int BOOL;
587    
588    #ifndef FALSE
589  #define FALSE   0  #define FALSE   0
590  #define TRUE    1  #define TRUE    1
591    #endif
592    
593  /* Escape items that are just an encoding of a particular data value. */  /* Escape items that are just an encoding of a particular data value. */
594    

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