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Extended leading repeat optimization to more cases.

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[SVN r42992]
This commit is contained in:
John Maddock
2008-01-27 18:43:35 +00:00
parent 37040f4bfd
commit 0915f19c03
2 changed files with 22 additions and 0 deletions
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13
include/boost/regex/v4/basic_regex_creator.hpp
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@ -1270,6 +1270,19 @@ void basic_regex_creator<charT, traits>::probe_leading_repeat(re_syntax_base* st
state = state->next.p;
continue;
}
if((static_cast<re_brace*>(state)->index == -1)
|| (static_cast<re_brace*>(state)->index == -2))
{
// skip past the zero width assertion:
state = static_cast<const re_jump*>(state->next.p)->alt.p->next.p;
continue;
}
if(static_cast<re_brace*>(state)->index == -3)
{
// Have to skip the leading jump state:
state = state->next.p->next.p;
continue;
}
return;
case syntax_element_endmark:
case syntax_element_start_line: