diff options
Diffstat (limited to 'gcc-4.9/libstdc++-v3/include/bits/regex_executor.tcc')
| -rw-r--r-- | gcc-4.9/libstdc++-v3/include/bits/regex_executor.tcc | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/gcc-4.9/libstdc++-v3/include/bits/regex_executor.tcc b/gcc-4.9/libstdc++-v3/include/bits/regex_executor.tcc index 052302b91..1dc65435f 100644 --- a/gcc-4.9/libstdc++-v3/include/bits/regex_executor.tcc +++ b/gcc-4.9/libstdc++-v3/include/bits/regex_executor.tcc @@ -267,9 +267,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION _M_dfs<__match_mode>(__state._M_next); break; case _S_opcode_match: + if (_M_current == _M_end) + break; if (__dfs_mode) { - if (_M_current != _M_end && __state._M_matches(*_M_current)) + if (__state._M_matches(*_M_current)) { ++_M_current; _M_dfs<__match_mode>(__state._M_next); @@ -350,23 +352,24 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION bool _Executor<_BiIter, _Alloc, _TraitsT, __dfs_mode>:: _M_word_boundary(_State<_TraitsT> __state) const { - // By definition. - bool __ans = false; - auto __pre = _M_current; - --__pre; - if (!(_M_at_begin() && _M_at_end())) + bool __left_is_word = false; + if (_M_current != _M_begin + || (_M_flags & regex_constants::match_prev_avail)) { - if (_M_at_begin()) - __ans = _M_is_word(*_M_current) - && !(_M_flags & regex_constants::match_not_bow); - else if (_M_at_end()) - __ans = _M_is_word(*__pre) - && !(_M_flags & regex_constants::match_not_eow); - else - __ans = _M_is_word(*_M_current) - != _M_is_word(*__pre); + auto __prev = _M_current; + if (_M_is_word(*std::prev(__prev))) + __left_is_word = true; } - return __ans; + bool __right_is_word = + _M_current != _M_end && _M_is_word(*_M_current); + + if (__left_is_word == __right_is_word) + return false; + if (__left_is_word && !(_M_flags & regex_constants::match_not_eow)) + return true; + if (__right_is_word && !(_M_flags & regex_constants::match_not_bow)) + return true; + return false; } _GLIBCXX_END_NAMESPACE_VERSION |