[#50571B2ABD3FF66CDF80D79DDF69F27B00EFD388]
Insert segments
iterator insert( iterator before, core::string_view s);
This function inserts a segment before the specified position. Reserved characters in the segment are automatically escaped.
All iterators that are equal to `before` or come after are invalidated.
Linear in `s.size() + this->url().encoded_resource().size()`.
Strong guarantee. Calls to allocate may throw.