/[pcre]/code/trunk/pcre_compile.c
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revision 230 by ph10, Mon Sep 10 13:23:56 2007 UTC revision 264 by ph10, Tue Nov 13 11:07:16 2007 UTC
# Line 43  supporting internal functions that are n Line 43  supporting internal functions that are n
43    
44    
45  #ifdef HAVE_CONFIG_H  #ifdef HAVE_CONFIG_H
46  #include <config.h>  #include "config.h"
47  #endif  #endif
48    
49  #define NLBLOCK cd             /* Block containing newline information */  #define NLBLOCK cd             /* Block containing newline information */
# Line 140  static const short int escapes[] = { Line 140  static const short int escapes[] = {
140  #endif  #endif
141    
142    
143  /* Table of special "verbs" like (*PRUNE) */  /* Table of special "verbs" like (*PRUNE). This is a short table, so it is
144    searched linearly. Put all the names into a single string, in order to reduce
145    the number of relocations when a shared library is dynamically linked. */
146    
147  typedef struct verbitem {  typedef struct verbitem {
   const char *name;  
148    int   len;    int   len;
149    int   op;    int   op;
150  } verbitem;  } verbitem;
151    
152    static const char verbnames[] =
153      "ACCEPT\0"
154      "COMMIT\0"
155      "F\0"
156      "FAIL\0"
157      "PRUNE\0"
158      "SKIP\0"
159      "THEN";
160    
161  static verbitem verbs[] = {  static verbitem verbs[] = {
162    { "ACCEPT", 6, OP_ACCEPT },    { 6, OP_ACCEPT },
163    { "COMMIT", 6, OP_COMMIT },    { 6, OP_COMMIT },
164    { "F",      1, OP_FAIL },    { 1, OP_FAIL },
165    { "FAIL",   4, OP_FAIL },    { 4, OP_FAIL },
166    { "PRUNE",  5, OP_PRUNE },    { 5, OP_PRUNE },
167    { "SKIP",   4, OP_SKIP  },    { 4, OP_SKIP  },
168    { "THEN",   4, OP_THEN  }    { 4, OP_THEN  }
169  };  };
170    
171  static int verbcount = sizeof(verbs)/sizeof(verbitem);  static int verbcount = sizeof(verbs)/sizeof(verbitem);
172    
173    
174  /* Tables of names of POSIX character classes and their lengths. The list is  /* Tables of names of POSIX character classes and their lengths. The names are
175  terminated by a zero length entry. The first three must be alpha, lower, upper,  now all in a single string, to reduce the number of relocations when a shared
176  as this is assumed for handling case independence. */  library is dynamically loaded. The list of lengths is terminated by a zero
177    length entry. The first three must be alpha, lower, upper, as this is assumed
178  static const char *const posix_names[] = {  for handling case independence. */
179    "alpha", "lower", "upper",  
180    "alnum", "ascii", "blank", "cntrl", "digit", "graph",  static const char posix_names[] =
181    "print", "punct", "space", "word",  "xdigit" };    "alpha\0"  "lower\0"  "upper\0"  "alnum\0"  "ascii\0"  "blank\0"
182      "cntrl\0"  "digit\0"  "graph\0"  "print\0"  "punct\0"  "space\0"
183      "word\0"   "xdigit";
184    
185  static const uschar posix_name_lengths[] = {  static const uschar posix_name_lengths[] = {
186    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 6, 0 };    5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 6, 0 };
# Line 207  static const int posix_class_maps[] = { Line 219  static const int posix_class_maps[] = {
219  /* The texts of compile-time error messages. These are "char *" because they  /* The texts of compile-time error messages. These are "char *" because they
220  are passed to the outside world. Do not ever re-use any error number, because  are passed to the outside world. Do not ever re-use any error number, because
221  they are documented. Always add a new error instead. Messages marked DEAD below  they are documented. Always add a new error instead. Messages marked DEAD below
222  are no longer used. */  are no longer used. This used to be a table of strings, but in order to reduce
223    the number of relocations needed when a shared library is loaded dynamically,
224  static const char *error_texts[] = {  it is now one long string. We cannot use a table of offsets, because the
225    "no error",  lengths of inserts such as XSTRING(MAX_NAME_SIZE) are not known. Instead, we
226    "\\ at end of pattern",  simply count through to the one we want - this isn't a performance issue
227    "\\c at end of pattern",  because these strings are used only when there is a compilation error. */
228    "unrecognized character follows \\",  
229    "numbers out of order in {} quantifier",  static const char error_texts[] =
230      "no error\0"
231      "\\ at end of pattern\0"
232      "\\c at end of pattern\0"
233      "unrecognized character follows \\\0"
234      "numbers out of order in {} quantifier\0"
235    /* 5 */    /* 5 */
236    "number too big in {} quantifier",    "number too big in {} quantifier\0"
237    "missing terminating ] for character class",    "missing terminating ] for character class\0"
238    "invalid escape sequence in character class",    "invalid escape sequence in character class\0"
239    "range out of order in character class",    "range out of order in character class\0"
240    "nothing to repeat",    "nothing to repeat\0"
241    /* 10 */    /* 10 */
242    "operand of unlimited repeat could match the empty string",  /** DEAD **/    "operand of unlimited repeat could match the empty string\0"  /** DEAD **/
243    "internal error: unexpected repeat",    "internal error: unexpected repeat\0"
244    "unrecognized character after (?",    "unrecognized character after (?\0"
245    "POSIX named classes are supported only within a class",    "POSIX named classes are supported only within a class\0"
246    "missing )",    "missing )\0"
247    /* 15 */    /* 15 */
248    "reference to non-existent subpattern",    "reference to non-existent subpattern\0"
249    "erroffset passed as NULL",    "erroffset passed as NULL\0"
250    "unknown option bit(s) set",    "unknown option bit(s) set\0"
251    "missing ) after comment",    "missing ) after comment\0"
252    "parentheses nested too deeply",  /** DEAD **/    "parentheses nested too deeply\0"  /** DEAD **/
253    /* 20 */    /* 20 */
254    "regular expression is too large",    "regular expression is too large\0"
255    "failed to get memory",    "failed to get memory\0"
256    "unmatched parentheses",    "unmatched parentheses\0"
257    "internal error: code overflow",    "internal error: code overflow\0"
258    "unrecognized character after (?<",    "unrecognized character after (?<\0"
259    /* 25 */    /* 25 */
260    "lookbehind assertion is not fixed length",    "lookbehind assertion is not fixed length\0"
261    "malformed number or name after (?(",    "malformed number or name after (?(\0"
262    "conditional group contains more than two branches",    "conditional group contains more than two branches\0"
263    "assertion expected after (?(",    "assertion expected after (?(\0"
264    "(?R or (?[+-]digits must be followed by )",    "(?R or (?[+-]digits must be followed by )\0"
265    /* 30 */    /* 30 */
266    "unknown POSIX class name",    "unknown POSIX class name\0"
267    "POSIX collating elements are not supported",    "POSIX collating elements are not supported\0"
268    "this version of PCRE is not compiled with PCRE_UTF8 support",    "this version of PCRE is not compiled with PCRE_UTF8 support\0"
269    "spare error",  /** DEAD **/    "spare error\0"  /** DEAD **/
270    "character value in \\x{...} sequence is too large",    "character value in \\x{...} sequence is too large\0"
271    /* 35 */    /* 35 */
272    "invalid condition (?(0)",    "invalid condition (?(0)\0"
273    "\\C not allowed in lookbehind assertion",    "\\C not allowed in lookbehind assertion\0"
274    "PCRE does not support \\L, \\l, \\N, \\U, or \\u",    "PCRE does not support \\L, \\l, \\N, \\U, or \\u\0"
275    "number after (?C is > 255",    "number after (?C is > 255\0"
276    "closing ) for (?C expected",    "closing ) for (?C expected\0"
277    /* 40 */    /* 40 */
278    "recursive call could loop indefinitely",    "recursive call could loop indefinitely\0"
279    "unrecognized character after (?P",    "unrecognized character after (?P\0"
280    "syntax error in subpattern name (missing terminator)",    "syntax error in subpattern name (missing terminator)\0"
281    "two named subpatterns have the same name",    "two named subpatterns have the same name\0"
282    "invalid UTF-8 string",    "invalid UTF-8 string\0"
283    /* 45 */    /* 45 */
284    "support for \\P, \\p, and \\X has not been compiled",    "support for \\P, \\p, and \\X has not been compiled\0"
285    "malformed \\P or \\p sequence",    "malformed \\P or \\p sequence\0"
286    "unknown property name after \\P or \\p",    "unknown property name after \\P or \\p\0"
287    "subpattern name is too long (maximum " XSTRING(MAX_NAME_SIZE) " characters)",    "subpattern name is too long (maximum " XSTRING(MAX_NAME_SIZE) " characters)\0"
288    "too many named subpatterns (maximum " XSTRING(MAX_NAME_COUNT) ")",    "too many named subpatterns (maximum " XSTRING(MAX_NAME_COUNT) ")\0"
289    /* 50 */    /* 50 */
290    "repeated subpattern is too long",    /** DEAD **/    "repeated subpattern is too long\0"    /** DEAD **/
291    "octal value is greater than \\377 (not in UTF-8 mode)",    "octal value is greater than \\377 (not in UTF-8 mode)\0"
292    "internal error: overran compiling workspace",    "internal error: overran compiling workspace\0"
293    "internal error: previously-checked referenced subpattern not found",    "internal error: previously-checked referenced subpattern not found\0"
294    "DEFINE group contains more than one branch",    "DEFINE group contains more than one branch\0"
295    /* 55 */    /* 55 */
296    "repeating a DEFINE group is not allowed",    "repeating a DEFINE group is not allowed\0"
297    "inconsistent NEWLINE options",    "inconsistent NEWLINE options\0"
298    "\\g is not followed by a braced name or an optionally braced non-zero number",    "\\g is not followed by a braced name or an optionally braced non-zero number\0"
299    "(?+ or (?- or (?(+ or (?(- must be followed by a non-zero number",    "(?+ or (?- or (?(+ or (?(- must be followed by a non-zero number\0"
300    "(*VERB) with an argument is not supported",    "(*VERB) with an argument is not supported\0"
301    /* 60 */    /* 60 */
302    "(*VERB) not recognized",    "(*VERB) not recognized\0"
303    "number is too big"    "number is too big";
 };  
304    
305    
306  /* Table to identify digits and hex digits. This is used when compiling  /* Table to identify digits and hex digits. This is used when compiling
# Line 420  static BOOL Line 436  static BOOL
436    
437    
438  /*************************************************  /*************************************************
439    *            Find an error text                  *
440    *************************************************/
441    
442    /* The error texts are now all in one long string, to save on relocations. As
443    some of the text is of unknown length, we can't use a table of offsets.
444    Instead, just count through the strings. This is not a performance issue
445    because it happens only when there has been a compilation error.
446    
447    Argument:   the error number
448    Returns:    pointer to the error string
449    */
450    
451    static const char *
452    find_error_text(int n)
453    {
454    const char *s = error_texts;
455    for (; n > 0; n--) while (*s++ != 0);
456    return s;
457    }
458    
459    
460    /*************************************************
461  *            Handle escapes                      *  *            Handle escapes                      *
462  *************************************************/  *************************************************/
463    
# Line 776  top = _pcre_utt_size; Line 814  top = _pcre_utt_size;
814  while (bot < top)  while (bot < top)
815    {    {
816    i = (bot + top) >> 1;    i = (bot + top) >> 1;
817    c = strcmp(name, _pcre_utt[i].name);    c = strcmp(name, _pcre_utt_names + _pcre_utt[i].name_offset);
818    if (c == 0)    if (c == 0)
819      {      {
820      *dptr = _pcre_utt[i].value;      *dptr = _pcre_utt[i].value;
# Line 1733  Returns:     a value representing the na Line 1771  Returns:     a value representing the na
1771  static int  static int
1772  check_posix_name(const uschar *ptr, int len)  check_posix_name(const uschar *ptr, int len)
1773  {  {
1774    const char *pn = posix_names;
1775  register int yield = 0;  register int yield = 0;
1776  while (posix_name_lengths[yield] != 0)  while (posix_name_lengths[yield] != 0)
1777    {    {
1778    if (len == posix_name_lengths[yield] &&    if (len == posix_name_lengths[yield] &&
1779      strncmp((const char *)ptr, posix_names[yield], len) == 0) return yield;      strncmp((const char *)ptr, pn, len) == 0) return yield;
1780      pn += posix_name_lengths[yield] + 1;
1781    yield++;    yield++;
1782    }    }
1783  return -1;  return -1;
# Line 2343  req_caseopt = ((options & PCRE_CASELESS) Line 2383  req_caseopt = ((options & PCRE_CASELESS)
2383  for (;; ptr++)  for (;; ptr++)
2384    {    {
2385    BOOL negate_class;    BOOL negate_class;
2386      BOOL should_flip_negation;
2387    BOOL possessive_quantifier;    BOOL possessive_quantifier;
2388    BOOL is_quantifier;    BOOL is_quantifier;
2389    BOOL is_recurse;    BOOL is_recurse;
# Line 2591  for (;; ptr++) Line 2632  for (;; ptr++)
2632        else break;        else break;
2633        }        }
2634    
2635        /* If a class contains a negative special such as \S, we need to flip the
2636        negation flag at the end, so that support for characters > 255 works
2637        correctly (they are all included in the class). */
2638    
2639        should_flip_negation = FALSE;
2640    
2641      /* Keep a count of chars with values < 256 so that we can optimize the case      /* Keep a count of chars with values < 256 so that we can optimize the case
2642      of just a single character (as long as it's < 256). However, For higher      of just a single character (as long as it's < 256). However, For higher
2643      valued UTF-8 characters, we don't yet do any optimization. */      valued UTF-8 characters, we don't yet do any optimization. */
# Line 2765  for (;; ptr++) Line 2812  for (;; ptr++)
2812              continue;              continue;
2813    
2814              case ESC_D:              case ESC_D:
2815                should_flip_negation = TRUE;
2816              for (c = 0; c < 32; c++) classbits[c] |= ~cbits[c+cbit_digit];              for (c = 0; c < 32; c++) classbits[c] |= ~cbits[c+cbit_digit];
2817              continue;              continue;
2818    
# Line 2773  for (;; ptr++) Line 2821  for (;; ptr++)
2821              continue;              continue;
2822    
2823              case ESC_W:              case ESC_W:
2824                should_flip_negation = TRUE;
2825              for (c = 0; c < 32; c++) classbits[c] |= ~cbits[c+cbit_word];              for (c = 0; c < 32; c++) classbits[c] |= ~cbits[c+cbit_word];
2826              continue;              continue;
2827    
# Line 2782  for (;; ptr++) Line 2831  for (;; ptr++)
2831              continue;              continue;
2832    
2833              case ESC_S:              case ESC_S:
2834                should_flip_negation = TRUE;
2835              for (c = 0; c < 32; c++) classbits[c] |= ~cbits[c+cbit_space];              for (c = 0; c < 32; c++) classbits[c] |= ~cbits[c+cbit_space];
2836              classbits[1] |= 0x08;    /* Perl 5.004 onwards omits VT from \s */              classbits[1] |= 0x08;    /* Perl 5.004 onwards omits VT from \s */
2837              continue;              continue;
# Line 2975  for (;; ptr++) Line 3025  for (;; ptr++)
3025          }          }
3026    
3027        oldptr = ptr;        oldptr = ptr;
3028    
3029        /* Remember \r or \n */        /* Remember \r or \n */
3030    
3031        if (c == '\r' || c == '\n') cd->external_flags |= PCRE_HASCRORLF;        if (c == '\r' || c == '\n') cd->external_flags |= PCRE_HASCRORLF;
3032    
3033        /* Check for range */        /* Check for range */
3034    
3035        if (!inescq && ptr[1] == '-')        if (!inescq && ptr[1] == '-')
# Line 3050  for (;; ptr++) Line 3100  for (;; ptr++)
3100          if (d == c) goto LONE_SINGLE_CHARACTER;  /* A few lines below */          if (d == c) goto LONE_SINGLE_CHARACTER;  /* A few lines below */
3101    
3102          /* Remember \r or \n */          /* Remember \r or \n */
3103    
3104          if (d == '\r' || d == '\n') cd->external_flags |= PCRE_HASCRORLF;          if (d == '\r' || d == '\n') cd->external_flags |= PCRE_HASCRORLF;
3105    
3106          /* In UTF-8 mode, if the upper limit is > 255, or > 127 for caseless          /* In UTF-8 mode, if the upper limit is > 255, or > 127 for caseless
3107          matching, we have to use an XCLASS with extra data items. Caseless          matching, we have to use an XCLASS with extra data items. Caseless
3108          matching for characters > 127 is available only if UCP support is          matching for characters > 127 is available only if UCP support is
# Line 3157  for (;; ptr++) Line 3207  for (;; ptr++)
3207        apparent range that isn't. */        apparent range that isn't. */
3208    
3209        LONE_SINGLE_CHARACTER:        LONE_SINGLE_CHARACTER:
3210    
3211        /* Handle a character that cannot go in the bit map */        /* Handle a character that cannot go in the bit map */
3212    
3213  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF8
# Line 3205  for (;; ptr++) Line 3255  for (;; ptr++)
3255        *errorcodeptr = ERR6;        *errorcodeptr = ERR6;
3256        goto FAILED;        goto FAILED;
3257        }        }
3258    
3259    
3260  /* This code has been disabled because it would mean that \s counts as  /* This code has been disabled because it would mean that \s counts as
3261  an explicit \r or \n reference, and that's not really what is wanted. Now  an explicit \r or \n reference, and that's not really what is wanted. Now
3262  we set the flag only if there is a literal "\r" or "\n" in the class. */  we set the flag only if there is a literal "\r" or "\n" in the class. */
# Line 3223  we set the flag only if there is a liter Line 3273  we set the flag only if there is a liter
3273        if ((classbits[1] & 0x24) != 0) cd->external_flags |= PCRE_HASCRORLF;        if ((classbits[1] & 0x24) != 0) cd->external_flags |= PCRE_HASCRORLF;
3274        }        }
3275  #endif  #endif
3276    
3277    
3278      /* If class_charcount is 1, we saw precisely one character whose value is      /* If class_charcount is 1, we saw precisely one character whose value is
3279      less than 256. As long as there were no characters >= 128 and there was no      less than 256. As long as there were no characters >= 128 and there was no
# Line 3287  we set the flag only if there is a liter Line 3337  we set the flag only if there is a liter
3337      zeroreqbyte = reqbyte;      zeroreqbyte = reqbyte;
3338    
3339      /* If there are characters with values > 255, we have to compile an      /* If there are characters with values > 255, we have to compile an
3340      extended class, with its own opcode. If there are no characters < 256,      extended class, with its own opcode, unless there was a negated special
3341      we can omit the bitmap in the actual compiled code. */      such as \S in the class, because in that case all characters > 255 are in
3342        the class, so any that were explicitly given as well can be ignored. If
3343        (when there are explicit characters > 255 that must be listed) there are no
3344        characters < 256, we can omit the bitmap in the actual compiled code. */
3345    
3346  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF8
3347      if (class_utf8)      if (class_utf8 && !should_flip_negation)
3348        {        {
3349        *class_utf8data++ = XCL_END;    /* Marks the end of extra data */        *class_utf8data++ = XCL_END;    /* Marks the end of extra data */
3350        *code++ = OP_XCLASS;        *code++ = OP_XCLASS;
# Line 3317  we set the flag only if there is a liter Line 3370  we set the flag only if there is a liter
3370        }        }
3371  #endif  #endif
3372    
3373      /* If there are no characters > 255, negate the 32-byte map if necessary,      /* If there are no characters > 255, set the opcode to OP_CLASS or
3374      and copy it into the code vector. If this is the first thing in the branch,      OP_NCLASS, depending on whether the whole class was negated and whether
3375      there can be no first char setting, whatever the repeat count. Any reqbyte      there were negative specials such as \S in the class. Then copy the 32-byte
3376      setting must remain unchanged after any kind of repeat. */      map into the code vector, negating it if necessary. */
3377    
3378        *code++ = (negate_class == should_flip_negation) ? OP_CLASS : OP_NCLASS;
3379      if (negate_class)      if (negate_class)
3380        {        {
       *code++ = OP_NCLASS;  
3381        if (lengthptr == NULL)    /* Save time in the pre-compile phase */        if (lengthptr == NULL)    /* Save time in the pre-compile phase */
3382          for (c = 0; c < 32; c++) code[c] = ~classbits[c];          for (c = 0; c < 32; c++) code[c] = ~classbits[c];
3383        }        }
3384      else      else
3385        {        {
       *code++ = OP_CLASS;  
3386        memcpy(code, classbits, 32);        memcpy(code, classbits, 32);
3387        }        }
3388      code += 32;      code += 32;
# Line 4024  we set the flag only if there is a liter Line 4076  we set the flag only if there is a liter
4076      if (*(++ptr) == '*' && (cd->ctypes[ptr[1]] & ctype_letter) != 0)      if (*(++ptr) == '*' && (cd->ctypes[ptr[1]] & ctype_letter) != 0)
4077        {        {
4078        int i, namelen;        int i, namelen;
4079          const char *vn = verbnames;
4080        const uschar *name = ++ptr;        const uschar *name = ++ptr;
4081        previous = NULL;        previous = NULL;
4082        while ((cd->ctypes[*++ptr] & ctype_letter) != 0);        while ((cd->ctypes[*++ptr] & ctype_letter) != 0);
# Line 4041  we set the flag only if there is a liter Line 4094  we set the flag only if there is a liter
4094        for (i = 0; i < verbcount; i++)        for (i = 0; i < verbcount; i++)
4095          {          {
4096          if (namelen == verbs[i].len &&          if (namelen == verbs[i].len &&
4097              strncmp((char *)name, verbs[i].name, namelen) == 0)              strncmp((char *)name, vn, namelen) == 0)
4098            {            {
4099            *code = verbs[i].op;            *code = verbs[i].op;
4100            if (*code++ == OP_ACCEPT) cd->had_accept = TRUE;            if (*code++ == OP_ACCEPT) cd->had_accept = TRUE;
4101            break;            break;
4102            }            }
4103            vn += verbs[i].len + 1;
4104          }          }
4105        if (i < verbcount) continue;        if (i < verbcount) continue;
4106        *errorcodeptr = ERR60;        *errorcodeptr = ERR60;
# Line 5763  cd->fcc = tables + fcc_offset; Line 5817  cd->fcc = tables + fcc_offset;
5817  cd->cbits = tables + cbits_offset;  cd->cbits = tables + cbits_offset;
5818  cd->ctypes = tables + ctypes_offset;  cd->ctypes = tables + ctypes_offset;
5819    
5820  /* Check for newline settings at the start of the pattern, and remember the  /* Check for global one-time settings at the start of the pattern, and remember
5821  offset for later. */  the offset for later. */
5822    
5823  if (ptr[0] == '(' && ptr[1] == '*')  while (ptr[skipatstart] == '(' && ptr[skipatstart+1] == '*')
5824    {    {
5825    int newnl = 0;    int newnl = 0;
5826    if (strncmp((char *)(ptr+2), "CR)", 3) == 0)    int newbsr = 0;
5827      { skipatstart = 5; newnl = PCRE_NEWLINE_CR; }  
5828    else if (strncmp((char *)(ptr+2), "LF)", 3)  == 0)    if (strncmp((char *)(ptr+skipatstart+2), "CR)", 3) == 0)
5829      { skipatstart = 5; newnl = PCRE_NEWLINE_LF; }      { skipatstart += 5; newnl = PCRE_NEWLINE_CR; }
5830    else if (strncmp((char *)(ptr+2), "CRLF)", 5)  == 0)    else if (strncmp((char *)(ptr+skipatstart+2), "LF)", 3)  == 0)
5831      { skipatstart = 7; newnl = PCRE_NEWLINE_CR + PCRE_NEWLINE_LF; }      { skipatstart += 5; newnl = PCRE_NEWLINE_LF; }
5832    else if (strncmp((char *)(ptr+2), "ANY)", 4) == 0)    else if (strncmp((char *)(ptr+skipatstart+2), "CRLF)", 5)  == 0)
5833      { skipatstart = 6; newnl = PCRE_NEWLINE_ANY; }      { skipatstart += 7; newnl = PCRE_NEWLINE_CR + PCRE_NEWLINE_LF; }
5834    else if (strncmp((char *)(ptr+2), "ANYCRLF)", 8)  == 0)    else if (strncmp((char *)(ptr+skipatstart+2), "ANY)", 4) == 0)
5835      { skipatstart = 10; newnl = PCRE_NEWLINE_ANYCRLF; }      { skipatstart += 6; newnl = PCRE_NEWLINE_ANY; }
5836    if (skipatstart > 0)    else if (strncmp((char *)(ptr+skipatstart+2), "ANYCRLF)", 8)  == 0)
5837        { skipatstart += 10; newnl = PCRE_NEWLINE_ANYCRLF; }
5838    
5839      else if (strncmp((char *)(ptr+skipatstart+2), "BSR_ANYCRLF)", 12) == 0)
5840        { skipatstart += 14; newbsr = PCRE_BSR_ANYCRLF; }
5841      else if (strncmp((char *)(ptr+skipatstart+2), "BSR_UNICODE)", 12) == 0)
5842        { skipatstart += 14; newbsr = PCRE_BSR_UNICODE; }
5843    
5844      if (newnl != 0)
5845      options = (options & ~PCRE_NEWLINE_BITS) | newnl;      options = (options & ~PCRE_NEWLINE_BITS) | newnl;
5846      else if (newbsr != 0)
5847        options = (options & ~(PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE)) | newbsr;
5848      else break;
5849      }
5850    
5851    /* Check validity of \R options. */
5852    
5853    switch (options & (PCRE_BSR_ANYCRLF|PCRE_BSR_UNICODE))
5854      {
5855      case 0:
5856      case PCRE_BSR_ANYCRLF:
5857      case PCRE_BSR_UNICODE:
5858      break;
5859      default: errorcode = ERR56; goto PCRE_EARLY_ERROR_RETURN;
5860    }    }
5861    
5862  /* Handle different types of newline. The three bits give seven cases. The  /* Handle different types of newline. The three bits give seven cases. The
# Line 5892  if (re == NULL) Line 5968  if (re == NULL)
5968    goto PCRE_EARLY_ERROR_RETURN;    goto PCRE_EARLY_ERROR_RETURN;
5969    }    }
5970    
5971  /* Put in the magic number, and save the sizes, initial options, internal  /* Put in the magic number, and save the sizes, initial options, internal
5972  flags, and character table pointer. NULL is used for the default character  flags, and character table pointer. NULL is used for the default character
5973  tables. The nullpad field is at the end; it's there to help in the case when a  tables. The nullpad field is at the end; it's there to help in the case when a
5974  regex compiled on a system with 4-byte pointers is run on another with 8-byte  regex compiled on a system with 4-byte pointers is run on another with 8-byte
# Line 5983  if (errorcode != 0) Line 6059  if (errorcode != 0)
6059    PCRE_EARLY_ERROR_RETURN:    PCRE_EARLY_ERROR_RETURN:
6060    *erroroffset = ptr - (const uschar *)pattern;    *erroroffset = ptr - (const uschar *)pattern;
6061    PCRE_EARLY_ERROR_RETURN2:    PCRE_EARLY_ERROR_RETURN2:
6062    *errorptr = error_texts[errorcode];    *errorptr = find_error_text(errorcode);
6063    if (errorcodeptr != NULL) *errorcodeptr = errorcode;    if (errorcodeptr != NULL) *errorcodeptr = errorcode;
6064    return NULL;    return NULL;
6065    }    }
# Line 6068  was compiled can be seen. */ Line 6144  was compiled can be seen. */
6144  if (code - codestart > length)  if (code - codestart > length)
6145    {    {
6146    (pcre_free)(re);    (pcre_free)(re);
6147    *errorptr = error_texts[ERR23];    *errorptr = find_error_text(ERR23);
6148    *erroroffset = ptr - (uschar *)pattern;    *erroroffset = ptr - (uschar *)pattern;
6149    if (errorcodeptr != NULL) *errorcodeptr = ERR23;    if (errorcodeptr != NULL) *errorcodeptr = ERR23;
6150    return NULL;    return NULL;

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