/[pcre]/code/trunk/pcre_compile.c
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revision 223 by ph10, Mon Aug 20 11:07:53 2007 UTC revision 227 by ph10, Tue Aug 21 15:00:15 2007 UTC
# Line 1597  for (code = first_significant_code(code Line 1597  for (code = first_significant_code(code
1597      case OP_TYPEEXACT:      case OP_TYPEEXACT:
1598      return FALSE;      return FALSE;
1599    
1600        /* These are going to continue, as they may be empty, but we have to
1601        fudge the length for the \p and \P cases. */
1602    
1603        case OP_TYPESTAR:
1604        case OP_TYPEMINSTAR:
1605        case OP_TYPEPOSSTAR:
1606        case OP_TYPEQUERY:
1607        case OP_TYPEMINQUERY:
1608        case OP_TYPEPOSQUERY:
1609        if (code[1] == OP_PROP || code[1] == OP_NOTPROP) code += 2;
1610        break;
1611    
1612        /* Same for these */
1613    
1614        case OP_TYPEUPTO:
1615        case OP_TYPEMINUPTO:
1616        case OP_TYPEPOSUPTO:
1617        if (code[3] == OP_PROP || code[3] == OP_NOTPROP) code += 2;
1618        break;
1619    
1620      /* End of branch */      /* End of branch */
1621    
1622      case OP_KET:      case OP_KET:
# Line 1759  adjust_recurse(uschar *group, int adjust Line 1779  adjust_recurse(uschar *group, int adjust
1779    uschar *save_hwm)    uschar *save_hwm)
1780  {  {
1781  uschar *ptr = group;  uschar *ptr = group;
1782    
1783  while ((ptr = (uschar *)find_recurse(ptr, utf8)) != NULL)  while ((ptr = (uschar *)find_recurse(ptr, utf8)) != NULL)
1784    {    {
1785    int offset;    int offset;
# Line 3175  for (;; ptr++) Line 3196  for (;; ptr++)
3196        goto FAILED;        goto FAILED;
3197        }        }
3198    
3199        /* Remember whether \r or \n are in this class */
3200    
3201        if (negate_class)
3202          {
3203          if ((classbits[1] & 0x24) != 0x24) cd->external_options |= PCRE_HASCRORLF;
3204          }
3205        else
3206          {
3207          if ((classbits[1] & 0x24) != 0) cd->external_options |= PCRE_HASCRORLF;
3208          }
3209    
3210      /* 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
3211      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
3212      use of \p or \P, in other words, no use of any XCLASS features, we can      use of \p or \P, in other words, no use of any XCLASS features, we can
3213      optimize.      optimize.
3214    
3215      In UTF-8 mode, we can optimize the negative case only if there were no      In UTF-8 mode, we can optimize the negative case only if there were no
3216      characters >= 128 because OP_NOT and the related opcodes like OP_NOTSTAR      characters >= 128 because OP_NOT and the related opcodes like OP_NOTSTAR
3217      operate on single-bytes only. This is an historical hangover. Maybe one day      operate on single-bytes only. This is an historical hangover. Maybe one day
# Line 3193  for (;; ptr++) Line 3225  for (;; ptr++)
3225      reqbyte, save the previous value for reinstating. */      reqbyte, save the previous value for reinstating. */
3226    
3227  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF8
3228      if (class_charcount == 1 && !class_utf8 &&      if (class_charcount == 1 && !class_utf8 &&
3229        (!utf8 || !negate_class || class_lastchar < 128))        (!utf8 || !negate_class || class_lastchar < 128))
3230  #else  #else
3231      if (class_charcount == 1)      if (class_charcount == 1)
# Line 5030  for (;; ptr++) Line 5062  for (;; ptr++)
5062      *code++ = ((options & PCRE_CASELESS) != 0)? OP_CHARNC : OP_CHAR;      *code++ = ((options & PCRE_CASELESS) != 0)? OP_CHARNC : OP_CHAR;
5063      for (c = 0; c < mclength; c++) *code++ = mcbuffer[c];      for (c = 0; c < mclength; c++) *code++ = mcbuffer[c];
5064    
5065        /* Remember if \r or \n were seen */
5066    
5067        if (mcbuffer[0] == '\r' || mcbuffer[0] == '\n')
5068          cd->external_options |= PCRE_HASCRORLF;
5069    
5070      /* Set the first and required bytes appropriately. If no previous first      /* Set the first and required bytes appropriately. If no previous first
5071      byte, set it from this character, but revert to none on a zero repeat.      byte, set it from this character, but revert to none on a zero repeat.
5072      Otherwise, leave the firstbyte value alone, and don't change it on a zero      Otherwise, leave the firstbyte value alone, and don't change it on a zero
# Line 5629  real_pcre *re; Line 5666  real_pcre *re;
5666  int length = 1;  /* For final END opcode */  int length = 1;  /* For final END opcode */
5667  int firstbyte, reqbyte, newline;  int firstbyte, reqbyte, newline;
5668  int errorcode = 0;  int errorcode = 0;
5669    int skipatstart = 0;
5670  #ifdef SUPPORT_UTF8  #ifdef SUPPORT_UTF8
5671  BOOL utf8;  BOOL utf8;
5672  #endif  #endif
# Line 5707  cd->fcc = tables + fcc_offset; Line 5745  cd->fcc = tables + fcc_offset;
5745  cd->cbits = tables + cbits_offset;  cd->cbits = tables + cbits_offset;
5746  cd->ctypes = tables + ctypes_offset;  cd->ctypes = tables + ctypes_offset;
5747    
5748    /* Check for newline settings at the start of the pattern, and remember the
5749    offset for later. */
5750    
5751    if (ptr[0] == '(' && ptr[1] == '*')
5752      {
5753      int newnl = 0;
5754      if (strncmp((char *)(ptr+2), "CR)", 3) == 0)
5755        { skipatstart = 5; newnl = PCRE_NEWLINE_CR; }
5756      else if (strncmp((char *)(ptr+2), "LF)", 3)  == 0)
5757        { skipatstart = 5; newnl = PCRE_NEWLINE_LF; }
5758      else if (strncmp((char *)(ptr+2), "CRLF)", 5)  == 0)
5759        { skipatstart = 7; newnl = PCRE_NEWLINE_CR + PCRE_NEWLINE_LF; }
5760      else if (strncmp((char *)(ptr+2), "ANY)", 4) == 0)
5761        { skipatstart = 6; newnl = PCRE_NEWLINE_ANY; }
5762      else if (strncmp((char *)(ptr+2), "ANYCRLF)", 8)  == 0)
5763        { skipatstart = 10; newnl = PCRE_NEWLINE_ANYCRLF; }
5764      if (skipatstart > 0)
5765        options = (options & ~PCRE_NEWLINE_BITS) | newnl;
5766      }
5767    
5768  /* Handle different types of newline. The three bits give seven cases. The  /* Handle different types of newline. The three bits give seven cases. The
5769  current code allows for fixed one- or two-byte sequences, plus "any" and  current code allows for fixed one- or two-byte sequences, plus "any" and
5770  "anycrlf". */  "anycrlf". */
5771    
5772  switch (options & (PCRE_NEWLINE_CRLF | PCRE_NEWLINE_ANY))  switch (options & PCRE_NEWLINE_BITS)
5773    {    {
5774    case 0: newline = NEWLINE; break;   /* Compile-time default */    case 0: newline = NEWLINE; break;   /* Build-time default */
5775    case PCRE_NEWLINE_CR: newline = '\r'; break;    case PCRE_NEWLINE_CR: newline = '\r'; break;
5776    case PCRE_NEWLINE_LF: newline = '\n'; break;    case PCRE_NEWLINE_LF: newline = '\n'; break;
5777    case PCRE_NEWLINE_CR+    case PCRE_NEWLINE_CR+
# Line 5785  been put into the cd block so that they Line 5843  been put into the cd block so that they
5843  found within the regex right at the beginning. Bringing initial option settings  found within the regex right at the beginning. Bringing initial option settings
5844  outside can help speed up starting point checks. */  outside can help speed up starting point checks. */
5845    
5846    ptr += skipatstart;
5847  code = cworkspace;  code = cworkspace;
5848  *code = OP_BRA;  *code = OP_BRA;
5849  (void)compile_regex(cd->external_options, cd->external_options & PCRE_IMS,  (void)compile_regex(cd->external_options, cd->external_options & PCRE_IMS,
# Line 5854  cd->had_accept = FALSE; Line 5913  cd->had_accept = FALSE;
5913  error, errorcode will be set non-zero, so we don't need to look at the result  error, errorcode will be set non-zero, so we don't need to look at the result
5914  of the function here. */  of the function here. */
5915    
5916  ptr = (const uschar *)pattern;  ptr = (const uschar *)pattern + skipatstart;
5917  code = (uschar *)codestart;  code = (uschar *)codestart;
5918  *code = OP_BRA;  *code = OP_BRA;
5919  (void)compile_regex(re->options, re->options & PCRE_IMS, &code, &ptr,  (void)compile_regex(re->options, re->options & PCRE_IMS, &code, &ptr,
# Line 5962  case when building a production library. Line 6021  case when building a production library.
6021  printf("Length = %d top_bracket = %d top_backref = %d\n",  printf("Length = %d top_bracket = %d top_backref = %d\n",
6022    length, re->top_bracket, re->top_backref);    length, re->top_bracket, re->top_backref);
6023    
6024  if (re->options != 0)  printf("Options=%08x\n", re->options);
   {  
   printf("%s%s%s%s%s%s%s%s%s\n",  
     ((re->options & PCRE_NOPARTIAL) != 0)? "nopartial " : "",  
     ((re->options & PCRE_ANCHORED) != 0)? "anchored " : "",  
     ((re->options & PCRE_CASELESS) != 0)? "caseless " : "",  
     ((re->options & PCRE_EXTENDED) != 0)? "extended " : "",  
     ((re->options & PCRE_MULTILINE) != 0)? "multiline " : "",  
     ((re->options & PCRE_DOTALL) != 0)? "dotall " : "",  
     ((re->options & PCRE_DOLLAR_ENDONLY) != 0)? "endonly " : "",  
     ((re->options & PCRE_EXTRA) != 0)? "extra " : "",  
     ((re->options & PCRE_UNGREEDY) != 0)? "ungreedy " : "");  
   }  
6025    
6026  if ((re->options & PCRE_FIRSTSET) != 0)  if ((re->options & PCRE_FIRSTSET) != 0)
6027    {    {
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