boost/boost-regex.patch
2008-01-16 16:27:11 +00:00

41 lines
1.6 KiB
Diff

*** boost/regex/v4/basic_regex_parser.hpp.orig 2008-01-14 12:53:01.000000000 -0600
--- boost/regex/v4/basic_regex_parser.hpp 2008-01-14 12:57:25.000000000 -0600
*************** bool basic_regex_parser<charT, traits>::
*** 777,782 ****
--- 777,783 ----
case syntax_element_restart_continue:
case syntax_element_jump:
case syntax_element_startmark:
+ case syntax_element_backstep:
// can't legally repeat any of the above:
fail(regex_constants::error_badrepeat, m_position - m_base);
return false;
*************** bool basic_regex_parser<charT, traits>::
*** 1862,1867 ****
--- 1863,1869 ----
if(markid == -4)
{
re_syntax_base* b = this->getaddress(expected_alt_point);
+ // Make sure we have exactly one alternative following this state:
if(b->type != syntax_element_alt)
{
re_alt* alt = static_cast<re_alt*>(this->insert_state(expected_alt_point, syntax_element_alt, sizeof(re_alt)));
*************** bool basic_regex_parser<charT, traits>::
*** 1872,1877 ****
--- 1874,1888 ----
fail(regex_constants::error_bad_pattern, m_position - m_base);
return false;
}
+ // check for invalid repetition of next state:
+ b = this->getaddress(expected_alt_point);
+ b = this->getaddress(static_cast<re_alt*>(b)->next.i, b);
+ if((b->type != syntax_element_assert_backref)
+ && (b->type != syntax_element_startmark))
+ {
+ fail(regex_constants::error_badrepeat, m_position - m_base);
+ return false;
+ }
}
//
// append closing parenthesis state: