/[pcre]/code/trunk/pcreposix.c
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revision 71 by nigel, Sat Feb 24 21:40:24 2007 UTC revision 545 by ph10, Wed Jun 16 10:51:15 2010 UTC
# Line 2  Line 2 
2  *      Perl-Compatible Regular Expressions       *  *      Perl-Compatible Regular Expressions       *
3  *************************************************/  *************************************************/
4    
5  /*  /* PCRE is a library of functions to support regular expressions whose syntax
6  This is a library of functions to support regular expressions whose syntax  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. See  
 the file Tech.Notes for some information on the internals.  
7    
8  This module is a wrapper that provides a POSIX API to the underlying PCRE                         Written by Philip Hazel
9  functions.             Copyright (c) 1997-2010 University of Cambridge
10    
11  Written by: Philip Hazel <ph10@cam.ac.uk>  -----------------------------------------------------------------------------
12    Redistribution and use in source and binary forms, with or without
13    modification, are permitted provided that the following conditions are met:
14    
15             Copyright (c) 1997-2003 University of Cambridge      * Redistributions of source code must retain the above copyright notice,
16          this list of conditions and the following disclaimer.
17    
18  -----------------------------------------------------------------------------      * Redistributions in binary form must reproduce the above copyright
19  Permission is granted to anyone to use this software for any purpose on any        notice, this list of conditions and the following disclaimer in the
20  computer system, and to redistribute it freely, subject to the following        documentation and/or other materials provided with the distribution.
21  restrictions:  
22        * Neither the name of the University of Cambridge nor the names of its
23  1. This software is distributed in the hope that it will be useful,        contributors may be used to endorse or promote products derived from
24     but WITHOUT ANY WARRANTY; without even the implied warranty of        this software without specific prior written permission.
25     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
26    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
27  2. The origin of this software must not be misrepresented, either by  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28     explicit claim or by omission.  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
30  3. Altered versions must be plainly marked as such, and must not be  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31     misrepresented as being the original software.  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  4. If PCRE is embedded in any software that is released under the GNU  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34     General Purpose Licence (GPL), then the terms of that licence shall  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35     supersede any condition above with which it is incompatible.  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36    POSSIBILITY OF SUCH DAMAGE.
37  -----------------------------------------------------------------------------  -----------------------------------------------------------------------------
38  */  */
39    
 #include "internal.h"  
 #include "pcreposix.h"  
 #include "stdlib.h"  
40    
41    /* This module is a wrapper that provides a POSIX API to the underlying PCRE
42    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    /* We include pcre.h before pcre_internal.h so that the PCRE library functions
61    are declared as "import" for Windows by defining PCRE_EXP_DECL as "import".
62    This is needed even though pcre_internal.h itself includes pcre.h, because it
63    does so after it has set PCRE_EXP_DECL to "export" if it is not already set. */
64    
65    #include "pcre.h"
66    #include "pcre_internal.h"
67    #include "pcreposix.h"
68    
69    
70  /* Corresponding tables of PCRE error messages and POSIX error codes. */  /* Table to translate PCRE compile time error codes into POSIX error codes. */
71    
72  static const char *estring[] = {  static const int eint[] = {
73    ERR1,  ERR2,  ERR3,  ERR4,  ERR5,  ERR6,  ERR7,  ERR8,  ERR9,  ERR10,    0,           /* no error */
74    ERR11, ERR12, ERR13, ERR14, ERR15, ERR16, ERR17, ERR18, ERR19, ERR20,    REG_EESCAPE, /* \ at end of pattern */
75    ERR21, ERR22, ERR23, ERR24, ERR25, ERR26, ERR27, ERR29, ERR29, ERR30,    REG_EESCAPE, /* \c at end of pattern */
76    ERR31, ERR32, ERR33, ERR34, ERR35, ERR36, ERR37, ERR38, ERR39, ERR40,    REG_EESCAPE, /* unrecognized character follows \ */
77    ERR41, ERR42, ERR43, ERR44 };    REG_BADBR,   /* numbers out of order in {} quantifier */
78      /* 5 */
79  static int eint[] = {    REG_BADBR,   /* number too big in {} quantifier */
80    REG_EESCAPE, /* "\\ at end of pattern" */    REG_EBRACK,  /* missing terminating ] for character class */
81    REG_EESCAPE, /* "\\c at end of pattern" */    REG_ECTYPE,  /* invalid escape sequence in character class */
82    REG_EESCAPE, /* "unrecognized character follows \\" */    REG_ERANGE,  /* range out of order in character class */
83    REG_BADBR,   /* "numbers out of order in {} quantifier" */    REG_BADRPT,  /* nothing to repeat */
84    REG_BADBR,   /* "number too big in {} quantifier" */    /* 10 */
85    REG_EBRACK,  /* "missing terminating ] for character class" */    REG_BADRPT,  /* operand of unlimited repeat could match the empty string */
86    REG_ECTYPE,  /* "invalid escape sequence in character class" */    REG_ASSERT,  /* internal error: unexpected repeat */
87    REG_ERANGE,  /* "range out of order in character class" */    REG_BADPAT,  /* unrecognized character after (? */
88    REG_BADRPT,  /* "nothing to repeat" */    REG_BADPAT,  /* POSIX named classes are supported only within a class */
89    REG_BADRPT,  /* "operand of unlimited repeat could match the empty string" */    REG_EPAREN,  /* missing ) */
90    REG_ASSERT,  /* "internal error: unexpected repeat" */    /* 15 */
91    REG_BADPAT,  /* "unrecognized character after (?" */    REG_ESUBREG, /* reference to non-existent subpattern */
92    REG_BADPAT,  /* "POSIX named classes are supported only within a class" */    REG_INVARG,  /* erroffset passed as NULL */
93    REG_EPAREN,  /* "missing )" */    REG_INVARG,  /* unknown option bit(s) set */
94    REG_ESUBREG, /* "reference to non-existent subpattern" */    REG_EPAREN,  /* missing ) after comment */
95    REG_INVARG,  /* "erroffset passed as NULL" */    REG_ESIZE,   /* parentheses nested too deeply */
96    REG_INVARG,  /* "unknown option bit(s) set" */    /* 20 */
97    REG_EPAREN,  /* "missing ) after comment" */    REG_ESIZE,   /* regular expression too large */
98    REG_ESIZE,   /* "parentheses nested too deeply" */    REG_ESPACE,  /* failed to get memory */
99    REG_ESIZE,   /* "regular expression too large" */    REG_EPAREN,  /* unmatched parentheses */
100    REG_ESPACE,  /* "failed to get memory" */    REG_ASSERT,  /* internal error: code overflow */
101    REG_EPAREN,  /* "unmatched brackets" */    REG_BADPAT,  /* unrecognized character after (?< */
102    REG_ASSERT,  /* "internal error: code overflow" */    /* 25 */
103    REG_BADPAT,  /* "unrecognized character after (?<" */    REG_BADPAT,  /* lookbehind assertion is not fixed length */
104    REG_BADPAT,  /* "lookbehind assertion is not fixed length" */    REG_BADPAT,  /* malformed number or name after (?( */
105    REG_BADPAT,  /* "malformed number after (?(" */    REG_BADPAT,  /* conditional group contains more than two branches */
106    REG_BADPAT,  /* "conditional group containe more than two branches" */    REG_BADPAT,  /* assertion expected after (?( */
107    REG_BADPAT,  /* "assertion expected after (?(" */    REG_BADPAT,  /* (?R or (?[+-]digits must be followed by ) */
108    REG_BADPAT,  /* "(?R or (?digits must be followed by )" */    /* 30 */
109    REG_ECTYPE,  /* "unknown POSIX class name" */    REG_ECTYPE,  /* unknown POSIX class name */
110    REG_BADPAT,  /* "POSIX collating elements are not supported" */    REG_BADPAT,  /* POSIX collating elements are not supported */
111    REG_INVARG,  /* "this version of PCRE is not compiled with PCRE_UTF8 support" */    REG_INVARG,  /* this version of PCRE is not compiled with PCRE_UTF8 support */
112    REG_BADPAT,  /* "spare error" */    REG_BADPAT,  /* spare error */
113    REG_BADPAT,  /* "character value in \x{...} sequence is too large" */    REG_BADPAT,  /* character value in \x{...} sequence is too large */
114    REG_BADPAT,  /* "invalid condition (?(0)" */    /* 35 */
115    REG_BADPAT,  /* "\\C not allowed in lookbehind assertion" */    REG_BADPAT,  /* invalid condition (?(0) */
116    REG_EESCAPE, /* "PCRE does not support \\L, \\l, \\N, \\P, \\p, \\U, \\u, or \\X" */    REG_BADPAT,  /* \C not allowed in lookbehind assertion */
117    REG_BADPAT,  /* "number after (?C is > 255" */    REG_EESCAPE, /* PCRE does not support \L, \l, \N, \U, or \u */
118    REG_BADPAT,  /* "closing ) for (?C expected" */    REG_BADPAT,  /* number after (?C is > 255 */
119    REG_BADPAT,  /* "recursive call could loop indefinitely" */    REG_BADPAT,  /* closing ) for (?C expected */
120    REG_BADPAT,  /* "unrecognized character after (?P" */    /* 40 */
121    REG_BADPAT,  /* "syntax error after (?P" */    REG_BADPAT,  /* recursive call could loop indefinitely */
122    REG_BADPAT,  /* "two named groups have the same name" */    REG_BADPAT,  /* unrecognized character after (?P */
123    REG_BADPAT   /* "invalid UTF-8 string" */    REG_BADPAT,  /* syntax error in subpattern name (missing terminator) */
124      REG_BADPAT,  /* two named subpatterns have the same name */
125      REG_BADPAT,  /* invalid UTF-8 string */
126      /* 45 */
127      REG_BADPAT,  /* support for \P, \p, and \X has not been compiled */
128      REG_BADPAT,  /* malformed \P or \p sequence */
129      REG_BADPAT,  /* unknown property name after \P or \p */
130      REG_BADPAT,  /* subpattern name is too long (maximum 32 characters) */
131      REG_BADPAT,  /* too many named subpatterns (maximum 10,000) */
132      /* 50 */
133      REG_BADPAT,  /* repeated subpattern is too long */
134      REG_BADPAT,  /* octal value is greater than \377 (not in UTF-8 mode) */
135      REG_BADPAT,  /* internal error: overran compiling workspace */
136      REG_BADPAT,  /* internal error: previously-checked referenced subpattern not found */
137      REG_BADPAT,  /* DEFINE group contains more than one branch */
138      /* 55 */
139      REG_BADPAT,  /* repeating a DEFINE group is not allowed */
140      REG_INVARG,  /* inconsistent NEWLINE options */
141      REG_BADPAT,  /* \g is not followed followed by an (optionally braced) non-zero number */
142      REG_BADPAT,  /* a numbered reference must not be zero */
143      REG_BADPAT,  /* an argument is not allowed for (*ACCEPT), (*FAIL), or (*COMMIT) */
144      /* 60 */
145      REG_BADPAT,  /* (*VERB) not recognized */
146      REG_BADPAT,  /* number is too big */
147      REG_BADPAT,  /* subpattern name expected */
148      REG_BADPAT,  /* digit expected after (?+ */
149      REG_BADPAT,  /* ] is an invalid data character in JavaScript compatibility mode */
150      /* 65 */
151      REG_BADPAT,  /* different names for subpatterns of the same number are not allowed */
152      REG_BADPAT,  /* (*MARK) must have an argument */
153      REG_INVARG,  /* this version of PCRE is not compiled with PCRE_UCP support */
154  };  };
155    
156  /* Table of texts corresponding to POSIX error codes */  /* Table of texts corresponding to POSIX error codes */
157    
158  static const char *pstring[] = {  static const char *const pstring[] = {
159    "",                                /* Dummy for value 0 */    "",                                /* Dummy for value 0 */
160    "internal error",                  /* REG_ASSERT */    "internal error",                  /* REG_ASSERT */
161    "invalid repeat counts in {}",     /* BADBR      */    "invalid repeat counts in {}",     /* BADBR      */
# Line 124  static const char *pstring[] = { Line 180  static const char *pstring[] = {
180    
181    
182  /*************************************************  /*************************************************
 *          Translate PCRE text code to int       *  
 *************************************************/  
   
 /* PCRE compile-time errors are given as strings defined as macros. We can just  
 look them up in a table to turn them into POSIX-style error codes. */  
   
 static int  
 pcre_posix_error_code(const char *s)  
 {  
 size_t i;  
 for (i = 0; i < sizeof(estring)/sizeof(char *); i++)  
   if (strcmp(s, estring[i]) == 0) return eint[i];  
 return REG_ASSERT;  
 }  
   
   
   
 /*************************************************  
183  *          Translate error code to string        *  *          Translate error code to string        *
184  *************************************************/  *************************************************/
185    
186  size_t  PCREPOSIX_EXP_DEFN size_t PCRE_CALL_CONVENTION
187  regerror(int errcode, const regex_t *preg, char *errbuf, size_t errbuf_size)  regerror(int errcode, const regex_t *preg, char *errbuf, size_t errbuf_size)
188  {  {
189  const char *message, *addmessage;  const char *message, *addmessage;
# Line 180  return length + addlength; Line 218  return length + addlength;
218  *           Free store held by a regex           *  *           Free store held by a regex           *
219  *************************************************/  *************************************************/
220    
221  void  PCREPOSIX_EXP_DEFN void PCRE_CALL_CONVENTION
222  regfree(regex_t *preg)  regfree(regex_t *preg)
223  {  {
224  (pcre_free)(preg->re_pcre);  (pcre_free)(preg->re_pcre);
# Line 203  Returns:      0 on success Line 241  Returns:      0 on success
241                various non-zero codes on failure                various non-zero codes on failure
242  */  */
243    
244  int  PCREPOSIX_EXP_DEFN int PCRE_CALL_CONVENTION
245  regcomp(regex_t *preg, const char *pattern, int cflags)  regcomp(regex_t *preg, const char *pattern, int cflags)
246  {  {
247  const char *errorptr;  const char *errorptr;
248  int erroffset;  int erroffset;
249    int errorcode;
250  int options = 0;  int options = 0;
251    
252  if ((cflags & REG_ICASE) != 0) options |= PCRE_CASELESS;  if ((cflags & REG_ICASE) != 0)    options |= PCRE_CASELESS;
253  if ((cflags & REG_NEWLINE) != 0) options |= PCRE_MULTILINE;  if ((cflags & REG_NEWLINE) != 0)  options |= PCRE_MULTILINE;
254    if ((cflags & REG_DOTALL) != 0)   options |= PCRE_DOTALL;
255    if ((cflags & REG_NOSUB) != 0)    options |= PCRE_NO_AUTO_CAPTURE;
256    if ((cflags & REG_UTF8) != 0)     options |= PCRE_UTF8;
257    if ((cflags & REG_UCP) != 0)      options |= PCRE_UCP;
258    if ((cflags & REG_UNGREEDY) != 0) options |= PCRE_UNGREEDY;
259    
260  preg->re_pcre = pcre_compile(pattern, options, &errorptr, &erroffset, NULL);  preg->re_pcre = pcre_compile2(pattern, options, &errorcode, &errorptr,
261      &erroffset, NULL);
262  preg->re_erroffset = erroffset;  preg->re_erroffset = erroffset;
263    
264  if (preg->re_pcre == NULL) return pcre_posix_error_code(errorptr);  /* Safety: if the error code is too big for the translation vector (which
265    should not happen, but we all make mistakes), return REG_BADPAT. */
266    
267    if (preg->re_pcre == NULL)
268      {
269      return (errorcode < sizeof(eint)/sizeof(const int))?
270        eint[errorcode] : REG_BADPAT;
271      }
272    
273  preg->re_nsub = pcre_info((const pcre *)preg->re_pcre, NULL, NULL);  preg->re_nsub = pcre_info((const pcre *)preg->re_pcre, NULL, NULL);
274  return 0;  return 0;
# Line 234  substring, so we have to get and release Line 286  substring, so we have to get and release
286  the POSIX structures as was done in earlier releases when PCRE needed only 2  the POSIX structures as was done in earlier releases when PCRE needed only 2
287  ints. However, if the number of possible capturing brackets is small, use a  ints. However, if the number of possible capturing brackets is small, use a
288  block of store on the stack, to reduce the use of malloc/free. The threshold is  block of store on the stack, to reduce the use of malloc/free. The threshold is
289  in a macro that can be changed at configure time. */  in a macro that can be changed at configure time.
290    
291    If REG_NOSUB was specified at compile time, the PCRE_NO_AUTO_CAPTURE flag will
292    be set. When this is the case, the nmatch and pmatch arguments are ignored, and
293    the only result is yes/no/error. */
294    
295  int  PCREPOSIX_EXP_DEFN int PCRE_CALL_CONVENTION
296  regexec(const regex_t *preg, const char *string, size_t nmatch,  regexec(const regex_t *preg, const char *string, size_t nmatch,
297    regmatch_t pmatch[], int eflags)    regmatch_t pmatch[], int eflags)
298  {  {
299  int rc;  int rc, so, eo;
300  int options = 0;  int options = 0;
301  int *ovector = NULL;  int *ovector = NULL;
302  int small_ovector[POSIX_MALLOC_THRESHOLD * 3];  int small_ovector[POSIX_MALLOC_THRESHOLD * 3];
303  BOOL allocated_ovector = FALSE;  BOOL allocated_ovector = FALSE;
304    BOOL nosub =
305      (((const pcre *)preg->re_pcre)->options & PCRE_NO_AUTO_CAPTURE) != 0;
306    
307  if ((eflags & REG_NOTBOL) != 0) options |= PCRE_NOTBOL;  if ((eflags & REG_NOTBOL) != 0) options |= PCRE_NOTBOL;
308  if ((eflags & REG_NOTEOL) != 0) options |= PCRE_NOTEOL;  if ((eflags & REG_NOTEOL) != 0) options |= PCRE_NOTEOL;
309    if ((eflags & REG_NOTEMPTY) != 0) options |= PCRE_NOTEMPTY;
310    
311  ((regex_t *)preg)->re_erroffset = (size_t)(-1);  /* Only has meaning after compile */  ((regex_t *)preg)->re_erroffset = (size_t)(-1);  /* Only has meaning after compile */
312    
313  if (nmatch > 0)  /* When no string data is being returned, or no vector has been passed in which
314    to put it, ensure that nmatch is zero. Otherwise, ensure the vector for holding
315    the return data is large enough. */
316    
317    if (nosub || pmatch == NULL) nmatch = 0;
318    
319    else if (nmatch > 0)
320    {    {
321    if (nmatch <= POSIX_MALLOC_THRESHOLD)    if (nmatch <= POSIX_MALLOC_THRESHOLD)
322      {      {
# Line 259  if (nmatch > 0) Line 324  if (nmatch > 0)
324      }      }
325    else    else
326      {      {
327        if (nmatch > INT_MAX/(sizeof(int) * 3)) return REG_ESPACE;
328      ovector = (int *)malloc(sizeof(int) * nmatch * 3);      ovector = (int *)malloc(sizeof(int) * nmatch * 3);
329      if (ovector == NULL) return REG_ESPACE;      if (ovector == NULL) return REG_ESPACE;
330      allocated_ovector = TRUE;      allocated_ovector = TRUE;
331      }      }
332    }    }
333    
334  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.
335    0, options, ovector, nmatch * 3);  The man page from OS X says "REG_STARTEND affects only the location of the
336    string, not how it is matched". That is why the "so" value is used to bump the
337    start location rather than being passed as a PCRE "starting offset". */
338    
339  if (rc == 0) rc = nmatch;    /* All captured slots were filled in */  if ((eflags & REG_STARTEND) != 0)
340      {
341      so = pmatch[0].rm_so;
342      eo = pmatch[0].rm_eo;
343      }
344    else
345      {
346      so = 0;
347      eo = (int)strlen(string);
348      }
349    
350    rc = pcre_exec((const pcre *)preg->re_pcre, NULL, string + so, (eo - so),
351      0, options, ovector, (int)(nmatch * 3));
352    
353    if (rc == 0) rc = (int)nmatch;    /* All captured slots were filled in */
354    
355    /* Successful match */
356    
357  if (rc >= 0)  if (rc >= 0)
358    {    {
359    size_t i;    size_t i;
360    for (i = 0; i < (size_t)rc; i++)    if (!nosub)
361      {      {
362      pmatch[i].rm_so = ovector[i*2];      for (i = 0; i < (size_t)rc; i++)
363      pmatch[i].rm_eo = ovector[i*2+1];        {
364          pmatch[i].rm_so = ovector[i*2];
365          pmatch[i].rm_eo = ovector[i*2+1];
366          }
367        if (allocated_ovector) free(ovector);
368        for (; i < nmatch; i++) pmatch[i].rm_so = pmatch[i].rm_eo = -1;
369      }      }
   if (allocated_ovector) free(ovector);  
   for (; i < nmatch; i++) pmatch[i].rm_so = pmatch[i].rm_eo = -1;  
370    return 0;    return 0;
371    }    }
372    
373  else  /* Unsuccessful match */
374    
375    if (allocated_ovector) free(ovector);
376    switch(rc)
377    {    {
378    if (allocated_ovector) free(ovector);  /* ========================================================================== */
379    switch(rc)    /* These cases are never obeyed. This is a fudge that causes a compile-time
380      {    error if the vector eint, which is indexed by compile-time error number, is
381      case PCRE_ERROR_NOMATCH: return REG_NOMATCH;    not the correct length. It seems to be the only way to do such a check at
382      case PCRE_ERROR_NULL: return REG_INVARG;    compile time, as the sizeof() operator does not work in the C preprocessor.
383      case PCRE_ERROR_BADOPTION: return REG_INVARG;    As all the PCRE_ERROR_xxx values are negative, we can use 0 and 1. */
384      case PCRE_ERROR_BADMAGIC: return REG_INVARG;  
385      case PCRE_ERROR_UNKNOWN_NODE: return REG_ASSERT;    case 0:
386      case PCRE_ERROR_NOMEMORY: return REG_ESPACE;    case (sizeof(eint)/sizeof(int) == ERRCOUNT):
387      default: return REG_ASSERT;    return REG_ASSERT;
388      }  /* ========================================================================== */
389    
390      case PCRE_ERROR_NOMATCH: return REG_NOMATCH;
391      case PCRE_ERROR_NULL: return REG_INVARG;
392      case PCRE_ERROR_BADOPTION: return REG_INVARG;
393      case PCRE_ERROR_BADMAGIC: return REG_INVARG;
394      case PCRE_ERROR_UNKNOWN_NODE: return REG_ASSERT;
395      case PCRE_ERROR_NOMEMORY: return REG_ESPACE;
396      case PCRE_ERROR_MATCHLIMIT: return REG_ESPACE;
397      case PCRE_ERROR_BADUTF8: return REG_INVARG;
398      case PCRE_ERROR_BADUTF8_OFFSET: return REG_INVARG;
399      default: return REG_ASSERT;
400    }    }
401  }  }
402    

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