boost-regex.patch

   1 *** boost/regex/v4/basic_regex_parser.hpp.orig  2008-01-14 12:53:01.000000000 -0600
   2 --- boost/regex/v4/basic_regex_parser.hpp       2008-01-14 12:57:25.000000000 -0600
   3 *************** bool basic_regex_parser<charT, traits>::
   4 *** 777,782 ****
   5 --- 777,783 ----
   6         case syntax_element_restart_continue:
   7         case syntax_element_jump:
   8         case syntax_element_startmark:
   9 +       case syntax_element_backstep:
  10            // can't legally repeat any of the above:
  11            fail(regex_constants::error_badrepeat, m_position - m_base);
  12            return false;
  13 *************** bool basic_regex_parser<charT, traits>::
  14 *** 1862,1867 ****
  15 --- 1863,1869 ----
  16      if(markid == -4)
  17      {
  18         re_syntax_base* b = this->getaddress(expected_alt_point);
  19 +       // Make sure we have exactly one alternative following this state:
  20         if(b->type != syntax_element_alt)
  21         {
  22            re_alt* alt = static_cast<re_alt*>(this->insert_state(expected_alt_point, syntax_element_alt, sizeof(re_alt)));
  23 *************** bool basic_regex_parser<charT, traits>::
  24 *** 1872,1877 ****
  25 --- 1874,1888 ----
  26            fail(regex_constants::error_bad_pattern, m_position - m_base);
  27            return false;
  28         }
  29 +       // check for invalid repetition of next state:
  30 +       b = this->getaddress(expected_alt_point);
  31 +       b = this->getaddress(static_cast<re_alt*>(b)->next.i, b);
  32 +       if((b->type != syntax_element_assert_backref)
  33 +          && (b->type != syntax_element_startmark))
  34 +       {
  35 +          fail(regex_constants::error_badrepeat, m_position - m_base);
  36 +          return false;
  37 +       }
  38      }
  39      //
  40      // append closing parenthesis state: