/[pcre]/code/trunk/pcre_compile.c
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revision 380 by ph10, Tue Mar 3 12:32:47 2009 UTC revision 381 by ph10, Tue Mar 3 16:08:23 2009 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) 1997-2008 University of Cambridge             Copyright (c) 1997-2009 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 5811  do { Line 5811  do {
5811       NULL, 0, FALSE);       NULL, 0, FALSE);
5812     register int op = *scode;     register int op = *scode;
5813    
5814     /* If we are at the start of a conditional group, skip over the condition.     /* If we are at the start of a conditional assertion group, *both* the
5815     before inspecting the first opcode after the condition. */     conditional assertion *and* what follows the condition must satisfy the test
5816       for start of line. Other kinds of condition fail. Note that there may be an
5817       auto-callout at the start of a condition. */
5818    
5819     if (op == OP_COND)     if (op == OP_COND)
5820       {       {
5821       scode += 1 + LINK_SIZE;       scode += 1 + LINK_SIZE;
5822         if (*scode == OP_CALLOUT) scode += _pcre_OP_lengths[OP_CALLOUT];
5823       switch (*scode)       switch (*scode)
5824         {         {
5825         case OP_CREF:         case OP_CREF:
5826         case OP_RREF:         case OP_RREF:
        scode += 3;  
        break;  
   
5827         case OP_DEF:         case OP_DEF:
5828         scode += 1;         return FALSE;
        break;  
5829    
5830         default:     /* Assertion */         default:     /* Assertion */
5831           if (!is_startline(scode, bracket_map, backref_map)) return FALSE;
5832         do scode += GET(scode, 1); while (*scode == OP_ALT);         do scode += GET(scode, 1); while (*scode == OP_ALT);
5833           scode += 1 + LINK_SIZE;
5834         break;         break;
5835         }         }
   
5836       scode = first_significant_code(scode, NULL, 0, FALSE);       scode = first_significant_code(scode, NULL, 0, FALSE);
5837       op = *scode;       op = *scode;
5838       }       }
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