boost::text::v1::lines
// In header: <boost/text/line_break.hpp> template<code_point_range R> unspecified lines(R && r);
Returns a view of the code point ranges delimiting lines (using hard line breaks) in r. The result is returned as a borrowed_view_t in C++20 and later.
Returns a view of the grapheme ranges delimiting lines (using hard line breaks) in r. The result is returned as a borrowed_view_t in C++20 and later.