/[pcre]/code/trunk/pcreposix.c
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revision 166 by ph10, Wed May 9 14:48:28 2007 UTC revision 336 by ph10, Sat Apr 12 15:59:03 2008 UTC
# Line 6  Line 6 
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.
7    
8                         Written by Philip Hazel                         Written by Philip Hazel
9             Copyright (c) 1997-2007 University of Cambridge             Copyright (c) 1997-2008 University of Cambridge
10    
11  -----------------------------------------------------------------------------  -----------------------------------------------------------------------------
12  Redistribution and use in source and binary forms, with or without  Redistribution and use in source and binary forms, with or without
# Line 42  POSSIBILITY OF SUCH DAMAGE. Line 42  POSSIBILITY OF SUCH DAMAGE.
42  functions. */  functions. */
43    
44    
45    #ifdef HAVE_CONFIG_H
46    #include "config.h"
47    #endif
48    
49    
50    /* Ensure that the PCREPOSIX_EXP_xxx macros are set appropriately for
51    compiling these functions. This must come before including pcreposix.h, where
52    they are set for an application (using these functions) if they have not
53    previously been set. */
54    
55    #if defined(_WIN32) && !defined(PCRE_STATIC)
56    #  define PCREPOSIX_EXP_DECL extern __declspec(dllexport)
57    #  define PCREPOSIX_EXP_DEFN __declspec(dllexport)
58    #endif
59    
60    #include "pcre.h"
61  #include "pcre_internal.h"  #include "pcre_internal.h"
62  #include "pcreposix.h"  #include "pcreposix.h"
 #include "stdlib.h"  
   
63    
64    
65  /* Table to translate PCRE compile time error codes into POSIX error codes. */  /* Table to translate PCRE compile time error codes into POSIX error codes. */
# Line 109  static const int eint[] = { Line 123  static const int eint[] = {
123    REG_BADPAT,  /* repeating a DEFINE group is not allowed */    REG_BADPAT,  /* repeating a DEFINE group is not allowed */
124    REG_INVARG,  /* inconsistent NEWLINE options */    REG_INVARG,  /* inconsistent NEWLINE options */
125    REG_BADPAT,  /* \g is not followed followed by an (optionally braced) non-zero number */    REG_BADPAT,  /* \g is not followed followed by an (optionally braced) non-zero number */
126    REG_BADPAT   /* (?+ or (?- must be followed by a non-zero number */    REG_BADPAT,  /* (?+ or (?- must be followed by a non-zero number */
127      REG_BADPAT,  /* number is too big */
128      REG_BADPAT,  /* subpattern name expected */
129      REG_BADPAT,  /* digit expected after (?+ */
130      REG_BADPAT   /* ] is an invalid data character in JavaScript compatibility mode */
131  };  };
132    
133  /* Table of texts corresponding to POSIX error codes */  /* Table of texts corresponding to POSIX error codes */
# Line 246  PCREPOSIX_EXP_DEFN int Line 264  PCREPOSIX_EXP_DEFN int
264  regexec(const regex_t *preg, const char *string, size_t nmatch,  regexec(const regex_t *preg, const char *string, size_t nmatch,
265    regmatch_t pmatch[], int eflags)    regmatch_t pmatch[], int eflags)
266  {  {
267  int rc;  int rc, so, eo;
268  int options = 0;  int options = 0;
269  int *ovector = NULL;  int *ovector = NULL;
270  int small_ovector[POSIX_MALLOC_THRESHOLD * 3];  int small_ovector[POSIX_MALLOC_THRESHOLD * 3];
# Line 279  else if (nmatch > 0) Line 297  else if (nmatch > 0)
297      }      }
298    }    }
299    
300  rc = pcre_exec((const pcre *)preg->re_pcre, NULL, string, (int)strlen(string),  /* REG_STARTEND is a BSD extension, to allow for non-NUL-terminated strings.
301    The man page from OS X says "REG_STARTEND affects only the location of the
302    string, not how it is matched". That is why the "so" value is used to bump the
303    start location rather than being passed as a PCRE "starting offset". */
304    
305    if ((eflags & REG_STARTEND) != 0)
306      {
307      so = pmatch[0].rm_so;
308      eo = pmatch[0].rm_eo;
309      }
310    else
311      {
312      so = 0;
313      eo = strlen(string);
314      }
315    
316    rc = pcre_exec((const pcre *)preg->re_pcre, NULL, string + so, (eo - so),
317    0, options, ovector, nmatch * 3);    0, options, ovector, nmatch * 3);
318    
319  if (rc == 0) rc = nmatch;    /* All captured slots were filled in */  if (rc == 0) rc = nmatch;    /* All captured slots were filled in */
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