[#768BBA857B242FF8B2570745E496E2C65ECE4056]
Insert segments
templateiterator insert( iterator before, FwdIt first, FwdIt last);
This function inserts the segments in a range before the specified position. Reserved characters in the list are automatically escaped.
All iterators that are equal to `before` or come after are invalidated.
None of the character buffers referenced by the range may overlap the character buffer of the underlying url, or else the behavior is undefined.
std::is_convertible< std::iterator_traits< FwdIt >::reference_type, core::string_view >::value == true
Linear in `std::distance( first, last ) + this->url().encoded_resource().size()`.
Strong guarantee. Calls to allocate may throw.