std::size_t regex_split(OutputIterator out,
std::basic_string<charT, Traits1, Alloc1>& s,
const basic_regex<charT, Traits2>& e,
match_flag_type flags,
std::size_t max_split)
{
typedef typename std::basic_string<charT, Traits1, Alloc1>::const_iterator ci_t;
//typedef typename match_results<ci_t>::allocator_type match_allocator;
ci_t last = s.begin();
std::size_t init_size = max_split;
re_detail::split_pred<OutputIterator, charT, Traits1, Alloc1> pred(&last, &out, &max_split);
ci_t i, j;
i = s.begin();
j = s.end();
regex_grep(pred, i, j, e, flags);
//
// if there is still input left, do a final push as long as max_split
// is not exhausted, and we're not splitting sub-expressions rather
// than whitespace:
if(max_split && (last != s.end()) && (e.mark_count() == 0))
{
*out = std::basic_string<charT, Traits1, Alloc1>((ci_t)last, (ci_t)s.end());
++out;
last = s.end();
--max_split;
}
//
// delete from the string everything that has been processed so far:
s.erase(0, last - s.begin());
//
// return the number of new records pushed:
return init_size - max_split;
}
inline unsigned int regex_grep(bool (*foo)(const match_results<std::basic_string<wchar_t>::const_iterator>&),
const std::basic_string<wchar_t>& s,
const wregex& e,
match_flag_type flags = match_default)
{
return regex_grep(foo, s.begin(), s.end(), e, flags);
}
inline unsigned int regex_grep(Predicate foo, const std::basic_string<charT, ST, SA>& s,
const reg_expression<charT, traits, Allocator>& e,
match_flag_type flags = match_default)
{
return regex_grep(foo, s.begin(), s.end(), e, flags);
}
inline unsigned int regex_grep(Predicate foo, const charT* str,
const reg_expression<charT, traits, Allocator>& e,
match_flag_type flags = match_default)
{
return regex_grep(foo, str, str + traits::length(str), e, flags);
}
inline unsigned int regex_grep(bool (*foo)(const wcmatch&), const wchar_t* str,
const wregex& e,
match_flag_type flags = match_default)
{
return regex_grep(foo, str, str + wregex::traits_type::length(str), e, flags);
}
inline unsigned int regex_grep(Predicate foo, const charT* str,
const basic_regex<charT, traits>& e,
match_flag_type flags = match_default)
{
return regex_grep(foo, str, str + traits::length(str), e, flags);
}
